(19)
(11)EP 3 150 284 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
11.12.2019 Bulletin 2019/50

(21)Application number: 16189977.8

(22)Date of filing:  21.09.2016
(51)International Patent Classification (IPC): 
B05B 1/08(2006.01)
E03C 1/04(2006.01)

(54)

SPOUT APPARATUS

ABGABEVORRICHTUNG

APPAREIL À BEC VERSEUR


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 30.09.2015 JP 2015194252

(43)Date of publication of application:
05.04.2017 Bulletin 2017/14

(73)Proprietor: Toto Ltd.
Kitakyushu-shi, Fukuoka 802-8601 (JP)

(72)Inventors:
  • NAGATA, Katsuya
    Fukuoka, 802-8601 (JP)
  • UKIGAI, Kiyotake
    Fukuoka, 802-8601 (JP)

(74)Representative: Zimmermann & Partner Patentanwälte mbB 
Josephspitalstr. 15
80331 München
80331 München (DE)


(56)References cited: : 
US-A- 4 151 955
US-A1- 2013 042 699
US-A1- 2011 233 301
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    Technical Field



    [0001] 0001 The present invention pertains to a spout apparatus, and more particularly to a spout apparatus for discharging hot or cold water from a spouting port while causing it to reciprocally oscillate at a variable amplitude.

    Background Art



    [0002] 0002 Shower heads in which the direction of hot or cold water spouted from a spouting port changes in an oscillating manner are known. In spout apparatuses such as these shower heads, a nozzle is driven in an oscillating manner by the supply force of supplied water, causing the direction of hot or cold water spouted from a spouting port to change. In this type of spout apparatus, hot or cold water can be jetted from a single spouting port over a wide area, enabling the achievement in a compact constitution of a spout apparatus capable of spouting over a wide range.

    [0003] 0003 At the same time, a warm water flush toilet seat apparatus is presented in Japanese Published Unexamined Patent Application 2000-120141 (Patent Document 1). In this warm water flush toilet seat apparatus, a self-oscillation is induced by a fluidic element nozzle, thus changing the direction in which flush water is jetted. Specifically, in this warm water flush toilet seat apparatus, as shown in Fig. 9, feedback flow paths 104 are provided on both sides of the spray nozzle 102. Each of the feedback flow paths 104 is a loop-shaped flow path communicating with the spray nozzle 102, and a portion of the flush water flowing through the spray nozzle 102 flows in and circulates therein. The spray nozzle 102 is shaped to widen in a tapered form toward a spray port 102a having an elliptical cross section.

    [0004] 0004 When flush water is supplied, the flush water sprayed from spray nozzle 102 is drawn by the Coanda effect to the wall surface on one side or the other of the elliptical cross section spray port 102a and sprayed so as to follow this wall (state "a" in Fig. 9). When flush water is sprayed along one of the wall surfaces, the flush water also flows into the feedback flowpath 104 on the side on which the flush water is being sprayed, and pressure inside the feedback flowpath 104 rises. Due to the rise in pressure, sprayed flush water is pushed, flush water is drawn to the wall surface on the opposite side and sprayed along the wall surface on the opposite side (Fig. 9, state "a" → "b" → "c"). In addition, when flush water is sprayed along the opposite side wall surface, the pressure now rises in the feedback flowpath 104 on the opposite side, and sprayed flush water is pushed back (Fig. 9, state "c" → "b" → "a"). By repetition of this action, sprayed flush water changes direction in an oscillating manner between states "a" and "c" in Fig. 9.

    [0005] 0005 A pure fluidic element is set forth in Japanese Published Unexamined Patent Application 2004-275985 (Patent Document 2). In this pure fluidic element, a linking duct which traverses the fluid jet nozzle is provided; the operation of this linking duct causes an alternating rise in pressure on the upper and lower sides of the fluid jet nozzle. Due to the Coanda effect, the jet current pushed by this pressure rise becomes a jet current along the top plate of the spray jet nozzle, or along the bottom plate thereof; these states are repeated at a certain cycle, becoming a flow in which the spray direction changes in an oscillating manner.

    [0006] 0006 In addition, an oscillating spray apparatus is set forth in Japanese Published Examined Patent Application S.58-49300 (Patent Document 3). This oscillating spray apparatus has the constitution shown in Fig. 10A-10C, and changes the direction of a spray flow sprayed from an outlet 112 in an oscillating manner, or changes the spouting form, by utilizing Karman vortexes generated inside an anterior chamber 110. First, a fluid which has flowed into the anterior chamber 110 from an intake port 114 collides with an obstacle 116 having a triangular cross section, disposed in an island shape inside the anterior chamber 110. When the fluid collides, Karman vortexes are alternately produced downstream of the obstacle 116 on both sides of the obstacle 116.

    [0007] 0007 Close to the outlet 112, the flow velocity on the side where the Karman vortex is present speeds up, and the flow velocity on the other side slows down. In the example shown in Fig. 10A, Karman vortexes are alternately created on the right and left sides of the obstacle 116, and reach the outlet 112 in sequence, therefore a fast right side flow velocity state and a fast left side flow velocity state alternately appear close to the outlet 112. In the state in which the right side flow velocity is fast, the fast flow velocity fluid collides with the wall surface on the right side of the outlet 112, changing direction, and the fluid sprayed from the outlet 112 as a whole becomes a jet current aimed diagonally left and downward. On the other hand in the high flow velocity state on the left side, high velocity fluid collides with a wall surface 110b on the left side of the outlet 112, and a jet flow is sprayed from the outlet 112 diagonally right and downward. The alternating repetition of these states results in a reciprocal oscillation during spraying from the outlet 112. In this apparatus, as shown in Fig. 10B or 10C, replacing the outlet portion parts with other parts (118 or 120) changes the oscillation amplitude and spout formation of water spouted from the outlet.

    [0008] Patent Document 4 describes a fluidic oscillator adapted for use in a showerhead assembly. The oscillator includes an eddy filter structure which reduces the adverse effects of fluid supply turbulence on the fluidic oscillator's spraying performance. Therein, a nozzle or rain can style showerhead assembly includes a water chamber or manifold which receives water via a central inlet fitting.

    [0009] 0008 As described above, a system can be conceived in which the fluidic element set forth in Patent Documents 1 through 3 is applied to a spout apparatus such as a shower head, and hot or cold water is discharged as it is oscillates in a reciprocating motion.

    Prior Art References



    [0010] 0009

    Patent Documents



    [0011] 

    Patent Document 1: JP 2000 - 120141 A

    Patent Document 2: JP 2004 - 275985 A

    Patent Document 3: JP S58-49300 B

    Patent Document 4 : US 2011/0233301 A



    [0012] Two part form of claim 1 is provided in the light of the disclosure of Patent Document 4.

    [0013] Other documents showing an oscillation inducing element are e.g. US4151955 and US20130042699.

    [0014] 0010 First, in a spout apparatus for changing the direction of hot or cold water spouted by driving a spray nozzle in an oscillating manner, the nozzle must be driven, leading to the problem of complex structure around the nozzle, making it difficult to house multiple nozzles compactly in a spout apparatus. Also in this type of spout apparatus, the problem is that a range to vary the spouting direction (amplitude of oscillation) cannot be changed. In this type of spout apparatus, attempting to change the amplitude requires mechanically changing the movable range over which the nozzle is driven, which creates the problem of an even more complicated mechanism around the nozzle. Also, in this type of spout apparatus the nozzle physically moves, therefore wear can easily occur in moving parts, resulting in the problem that the selection of materials for members comprising the movable portion is limited in order to avoid wear. An additional problem is that costs are increased because of the need to form movable parts with a complex structure from a wear-resistant material.

    [0015] 0011 The type of spray apparatus set forth in Patent Documents 1 through 3, on the other hand, utilizes an oscillation phenomenon caused by a fluidic element; the spraying direction of a fluid can be changed without providing a movable member, thus yielding the advantage that the nozzle part can be compactly constituted by a simple structure.

    [0016] However in the fluid element set forth in Patent Documents 1 and 2, the problem is that the amplitude of the reciprocating oscillation of sprayed hot or cold water cannot be changed. I.e., because the fluid element set forth in Patent Documents 1 and 2 takes advantage of the flow of sprayed fluid along wall surfaces due to the Coanda effect, the amplitude of sprayed hot or cold water is generally defined by the angle of the wall surfaces which the Coanda effect, and cannot be changed. I.e., for the Patent Document 1 fluid element, hot or cold water is fixed at an amplitude between state a and state c, and for the Patent Document 2 fluid element, it is fixed at an amplitude between the jet flow along the upper plate and the jet flow along the lower plate.

    [0017] 0012 In contrast, the Patent Document 3 fluid element, while it does apply a Karman vortex, requires replacing parts in the outlet portion in order to change the amplitude or the like of sprayed hot or cold water, as shown in Fig. 10A-10C. Therefore a mechanical switching operation is required to change the amplitude, resulting in the problems of a more complicated faucet apparatus and greater difficulty in achieving a compact size.

    [0018] 0013 The present invention therefore has the object of providing a spout apparatus which can be compactly constituted, and which is capable of changing the oscillation amplitude of jetted hot or cold water.

    Means for Resolving Problems



    [0019] 0014 In order to resolve the above-described problems, the present invention is a spout apparatus for discharging hot or cold water in the sense of independent claim 1.

    [0020] 0015 In the invention thus constituted, hot or cold water supplied from the spout apparatus flows into the water supply passageway. The water collision portion is disposed on the downstream end portion of this water supply passageway so as to block a portion of the flow path cross section, and this water collision portion causes vortexes of alternately opposing circulations to be generated at the downstream side thereof by the collision of hot or cold water guided by the water supply passageway. Vortexes formed by the water collision portion are guided while be caused to grow by the vortex street passageway disposed on the downstream side of the water supply passageway. At the same time, hot or cold water flows into the vortex street passageway through the bypass passageway, detouring the water supply passageway. Hot or cold water guided by the vortex street passageway is discharged through a discharge passageway. The ratio between flow volumes of hot or cold water flowing into the vortex street passageway past the water collision portion and hot or cold water flowing into the vortex street passageway through the bypass passageway is changed by a flow volume ratio changing portion, and the amplitude of discharged hot or cold water is changed by changing this flow volume ratio. In other words, the oscillation inducing element is equipped with a vortex street passageway for guiding vortexes formed by the water collision portion while causing them to grow, and a bypass passageway for detouring the water collision portion and causing hot or cold water to flow into the vortex street passageway, and the amplitude of the oscillation is changed by suppressing the reciprocating oscillation of hot or cold water produced by vortexes using hot or cold water flowing in from the bypass passageway.

    [0021] 0016 In the invention thus constituted, the oscillation amplitude of discharged hot or cold water can be changed using the ratio of hot or cold water from the water supply passageway flowing into the oscillation inducing element to hot or cold water from the bypass passageway, therefore the oscillation inducing element can change the amplitude of the reciprocating oscillation of discharged hot or cold water without requiring a mechanical movable part. A spout apparatus enabling the oscillation amplitude of jetted hot or cold water to be changed can thus be compactly constituted using a simple structure. Since the flow volume ratio changing portion changes the ratio of hot or cold water flowing in past the water collision portion to hot or cold water flowing in through the bypass passageway, the flow volume discharged from the spout apparatus is maintained essentially constant even if the oscillation amplitude is changed by the flow velocity ratio changing portion, therefore a conveniently usable spout apparatus, capable of changing the oscillation amplitude while maintaining a fixed flow volume, can be provided.

    [0022] 0017 In the present invention, preferably, the flow volume ratio changing portion can be set in a range such that the flow velocity of hot or cold water flowing into the vortex street passageway past the water collision portion is faster than the flow velocity of hot or cold water flowing into the vortex street passageway through the bypass passageway.

    [0023] 0018 In the invention thus constituted, the flow velocity of hot or cold water flowing in from the bypass passageway is slowed, therefore vortexes produced by the water collision portion are not excessively extinguished, and by increasing the hot or cold water flowing in from the bypass passageway the oscillation amplitude can be gradually reduced, and the oscillation amplitude can be adjusted over a wide range.

    [0024] 0019 In the present invention, preferably, the water collision portion is disposed to extend to traverse between a pair of opposing wall surfaces in the water supply passageway, and the bypass passageway allows the inflow of hot or cold water in a direction perpendicular to the direction in which the water collision portion extends.

    [0025] 0020 In the invention thus constituted, the bypass passageway causes an inflow of hot or cold water in a direction perpendicular to the direction in which the water collision portion extends, therefore hot or cold water flows in through the bypass passageway from the side formed at the downstream side of the water collision portion relative to the vortex street. Vortex flows can thus be weakened without excessively destroying the formed vortexes; the oscillation amplitude can be gradually reduced, and can be adjusted over a broad range.

    [0026] 0021 In the present invention, preferably, the bypass passageway allows the inflow of substantially the same amount of hot or cold water from both sides of the vortex street passageway.

    [0027] In the invention thus constituted, substantially the same flow volume of hot or cold water from the bypass passageway 6b flows in from both sides of the vortex street passageway, therefore no major biasing occurs in the flow within the vortex street passageway, and biasing of the reciprocating oscillation of hot or cold water can be reduced.

    [0028] 0022 In the present invention, preferably, two bypass inflow ports for allowing hot or cold water to flow in from the bypass passageway to the vortex street passageway are disposed on the vortex street passageway in mutual opposition.

    [0029] In the invention thus constituted, two bypass inflow ports are disposed to be mutually opposing, therefore the flow in the vortex street passageway can be kept substantially symmetrical, and the reciprocating oscillation of discharged hot or cold water can be substantially symmetrically reduced.

    Effect of the Invention



    [0030] 0023 Using the present invention, a spout apparatus enabling the oscillation amplitude of jetted hot or cold water to be changed can thus be compactly constituted using a simple structure.

    Brief Description of Figures



    [0031] 0024

    Fig. 1: A perspective view showing the external appearance of a shower head according to an embodiment of the present invention.

    Fig. 2: An full cross section of a shower head according to an embodiment of the present invention.

    Fig. 3: A perspective view showing the external appearance of an oscillation inducing element provided in a shower head according to an embodiment of the present invention.

    Fig. 4A: A plan view cross section of an oscillation inducing element in an embodiment of the invention;

    Fig. 4B: A vertical cross section of an oscillation inducing element.

    Fig. 5: A block diagram showing the flow of hot or cold water in a shower head according to an embodiment of the present invention.

    Fig. 6: A diagram showing water spouting in an oscillation inducing element provided in an embodiment of the present invention when the ratio between hot or cold water flowing in from a main flow inlet to total hot or cold water flowing in from each bypass inflow port is 9:1.

    Fig. 7: A diagram showing water spouting in an oscillation inducing element provided in an embodiment of the present invention when the ratio between hot or cold water flowing in from a main flow inlet to total hot or cold water flowing in from each bypass inflow port is 6:4.

    Fig. 8: A diagram showing water spouting in an oscillation inducing element provided in an embodiment of the present invention when the ratio between hot or cold water flowing in from a main flow inlet to total hot or cold water flowing in from each bypass inflow port is 5:5.

    Fig. 9: A diagram showing the operation of the fluid element set forth in Patent Document 1.

    Fig. 10: A diagram showing the constitution of the fluid element set forth in Patent Document 3.


    Embodiments



    [0032] 0025 Next, referring to the attached figures, we explain a shower head serving as a spout apparatus in a preferred embodiment of the invention.Herein, any aspect of any one of the embodiments can be combined with any other aspect or embodiment. For example, any detail of the water supply passageway, the water collision portion, vortex street passageway, discharge passageway, bypass passageway, flow volume ratio changing portion, and other such element in the following embodiments can be combined with any other aspect described herein.

    [0033] First, referring to Figs. 1 through 8, we explain a shower head according to an embodiment of the present invention. Fig. 1 is a perspective view showing the external appearance of a shower head according to an embodiment of the present invention. Fig. 2 is an overall cross section of a shower head according to an embodiment of the present invention. Fig. 3 is a perspective view showing the external appearance of an oscillation inducing element provided in a shower head according to an embodiment of the present invention. Fig. 4A is a plan view cross section of an oscillation inducing element in a first embodiment of the invention. Fig. 4B is a vertical cross section of an oscillation inducing element.

    [0034] 0026 As shown in Fig. 1, the shower head 1 of the present embodiment has: a shower head main body 2, being an approximately cylindrical spout apparatus, nine oscillation inducing elements 4, arrayed and embedded in a straight line in the axial direction inside the shower head main body 2, and an amplitude changing knob 2b for changing the oscillation amplitude of discharged hot or cold water.

    [0035] When hot or cold water is supplied from a shower hose (not shown) connected to the shower head main body 2 base end portion 2a, the shower head 1 of the present embodiment discharges hot or cold water from the spout water ports 4a on each oscillation inducing element 4. The amplitude at which hot or cold water reciprocally oscillates can be changed by manipulating the amplitude changing knob 2b. Note that in the present embodiment the hot or cold water is discharged from each spout port 4a so as to form a fan shape in a plane approximately perpendicular to the center axis line of the shower head main body 2, and the center angle of the fan shape can be changed by the amplitude changing knob 2b.

    [0036] 0027 Next, referring to Fig. 2, we explain the internal structure of the shower head 1.

    [0037] As shown in Fig. 2, built into the shower head main body 2 are: a conduit-forming member 6 for forming the water conduit and for holding each of the oscillation inducing elements 4, and a flow volume ratio adjusting member 8, disposed at the base end portion of this conduit-forming member 6 and serving as a flow volume ratio changing portion. The water conduit-forming member 6 is a generally cylindrical member, and is constituted to form a flow path for hot or cold water supplied into the shower head main body 2. A shower hose (not shown) is connected in a watertight manner to the base end portion of the water conduit-forming member 6. A main water conduit 6a extending in generally the axial direction, and a bypass passageway 6b extending generally parallel to this main water conduit 6a, are formed on the interior of the conduit-forming member 6.

    [0038] 0028 Moreover, nine element insertion holes 6c for the insertion and holding of each of the oscillation inducing elements 4 are formed in the conduit-forming member 6 so as to communicate with the main water conduit 6a and the bypass passageway 6b. Each of the element insertion holes 6c is formed to cross the bypass passageway 6b from the outer circumferential surface of the conduit-forming member 6 and extend up to the main water conduit 6a. The element insertion holes 6c are formed at generally equal intervals in a straight line in the axial direction. Hot or cold water flowing into the conduit-forming member 6 main water conduit 6a thus flows in from the rear surface side of the oscillation oscillation inducing elements 4 being held on the conduit-forming member 6, and is discharged from a spout port 4a disposed on the front surface thereof. Hot or cold water flowing into the conduit-forming member 6 bypass passageway 6b, on the other hand, flows in from both side surface of each of the oscillation inducing elements 4, and is discharged from the spout port 4a.

    [0039] 0029 Each element insertion hole 6c is placed so as to tilt slightly relative to a plane perpendicular to the center axis line of the shower head main body 2, and hot or cold water sprayed from each oscillation inducing element 4 is discharged overall so as to spread out slightly in the axial direction of the shower head main body 2.

    [0040] 0030 The flow volume ratio adjusting member 8 is a generally round columnar member, and is attached to the base portion of the conduit-forming member 6 so as to be able to rotate about the center axis line thereof. This flow volume ratio adjusting member 8 is constituted to be rotated by user manipulation of the amplitude changing knob 2b (Fig. 1). A main water conducting bore 8a and bypass water conducting bore 8b extending in the axial direction are formed in the flow volume ratio adjusting member 8, and are respectively positioned to communicate with the main water conduit 6a and the bypass passageway 6b. Hot or cold water flowing into the shower head main body 2 flows through the main water conducting bore 8a into the main water conduit 6a, and flows into the bypass passageway 6b through the bypass water conducting bore 8b. Rotation of the flow volume ratio adjusting member 8 results in a change in the degree of fit between the main water conduit 6a and the main water conducting bore 8a, and between the bypass passageway 6b and the bypass water conducting bore 8b, thereby changing the proportion of hot or cold water respectively flowing into the main water conduit 6a and the bypass passageway 6b. Note also that the total volume of hot or cold water flowing into the main water conduit 6a and the bypass passageway 6b barely changes with manipulation of the flow volume ratio adjusting member 8, and the total volume of discharged hot or cold water is essentially fixed, regardless of the rotational position of the flow volume ratio adjusting member 8.

    [0041] 0031 Next, referring to Figs. 3 and 4, we explain the constitution of an oscillation inducing element 4 built into the shower head of the present embodiment.

    [0042] As shown in Fig. 3, the oscillation inducing elements 4 are generally thin rectangular members; a rectangular spout port 4a is disposed on the end surface of the front sides thereof; bypass inflow ports 4b are disposed on both side surfaces, and a main flow inlet 4c is formed on the end surface of the rear surface side (Fig. 4). When each of the oscillation inducing elements 4 is inserted into an element insertion hole 6c, the main flow inlet 4c communicates with the conduit-forming member 6 main water conduit 6a, and bypass inflow port 4b communicates with the bypass passageway 6b.

    [0043] 0032 Fig. 4A is a cross section seen along line A-A in Fig. 3; Fig. 4B is a cross sectional diagram along line B-B in Fig. 3.

    [0044] As shown in Fig. 4B, a passageway with a rectangular cross section is formed on the inside of the oscillation inducing element 4 so as to penetrate in the longitudinal direction. This passageway is formed, in order from the upstream side, by the inlet portion water supply passageway 10a, the vortex street passageway 10b, and the discharge passageway 10c.

    [0045] The water supply passageway 10a is a straight passageway with an essentially constant rectangular cross section, extending from the inflow port 4c on the rear surface side of the oscillation inducing element 4.

    [0046] The vortex street passageway 10b is a rectangular cross section passageway disposed on the downstream side of the water supply passageway 10a, contiguous with the water supply passageway 10a. I.e., in the present embodiment the water supply passageway 10a and the vortex street passageway 10b extend in a straight line with the same cross sectional shapes. Also, bypass inflow ports 4b are respectively disposed to face one another on the side surface at both sides of the vortex street passageway 10b. Hot or cold water guided by the bypass passageway 6b flows into the vortex street passageway 10b through each of the bypass inflow ports 4b.

    [0047] 0033 A discharge passageway 10c is a passageway with a rectangular fixed cross section, disposed on the downstream side so as to communicate with the vortex street passageway 10b; in substance it has only the length of the wall thickness of the oscillation inducing elements 4. This discharge passageway 10c is smaller than the flow path cross sectional area of the vortex street passageway 10b, so that hot or cold water guided by the vortex street passageway 10b containing vortex streets is constricted, then discharged by the spout port 4a. Therefore a stepped portion 12 is formed between the vortex street passageway 10b and the discharge passageway 10c.

    [0048] 0034 Also, as shown in Fig. 4B, the wall surfaces (ceiling surface and floor surface) opposing one another in the height direction of the water supply passageway 10a, the vortex street passageway 10b, and the discharge passageway 10c are all disposed on the same plane. I.e., the heights of the water supply passageway 10a, vortex street passageway 10b, and discharge passageway 10c are all the same, and are fixed.

    [0049] 0035 In addition, a water collision portion 14 is formed on the downstream end portion of the water supply passageway 10a (close to the connecting portion between water supply passageway 10a and vortex street passageway 10b), and this water collision portion 14 is placed so as to block a portion of the flow path cross section of the water supply passageway 10a. This water collision portion 14 is a triangular columnar part extending so as to link to opposing wall surfaces (ceiling surface and floor surface) in the height direction of the water supply passageway 10a, and is disposed in an island shape at the center in the width direction of the water supply passageway 10a. The cross section of the water collision portion 14 is formed in an isosceles right triangle shape; the hypotenuse thereof is disposed to be perpendicular to the center axis line of the water supply passageway 10a, and the right angle part of the isosceles right triangle is disposed to face downstream. Placement of this water collision portion 14 produces a Karman vortex on the downstream side thereof, causing hot or cold water discharged from the spouting port 4a to oscillate in reciprocal motion. As described above, bypass inflow ports 4b are placed in mutual opposition on both sides of the vortex street passageway 10b, and hot or cold water which has passed through the bypass passageway 6b from the bypass inflow ports 4b flows into same, therefore the bypass passageway 6b allows the flow of hot or cold water into the vortex street passageway 10b in a direction perpendicular to the direction in which the water collision portion 14 extends.

    [0050] 0036 Note that in the present embodiment the flow path cross sectional area (the surface area of the flow path cross sectional area of the water supply passageway 10a minus the projected surface area of the water collision portion 14) is constituted to be larger than the flow path surface area of the discharge passageway 10c.

    [0051] 0037 Next, referring to Figs. 5 through 8, we explain the operation of a shower head 1 according to a first embodiment of the invention.

    [0052] Fig. 5 is a block diagram showing the flow of hot or cold water in a shower head 1 according to an embodiment of the present invention. Figs. 6 through 8 schematically explain the relationship of the flow volumes of hot or cold water respectively flowing in from the main flow inlet 4c and bypass inflow ports 4b to oscillation amplitude.

    [0053] 0038 As shown in Fig. 5, hot or cold water supplied from a shower hose (not shown) flows into a conduit-forming member 6 (Fig. 2) inside the shower head main body 2, reaching the flow volume ratio adjusting member 8. Hot or cold water which has reached the flow volume ratio adjusting member 8 respectively flows into the main water conducting bore 8a and the bypass water conducting bore 8b at a predetermined ratio according to the rotational position of the flow volume ratio adjusting member 8. Hot or cold water flowing in from the main water conducting bore 8a passes through the conduit-forming member 6 main water conduit 6a, and flows into the oscillation inducing element 4 from the main flow inlet 4c in oscillation inducing element 4. On the other hand hot or cold water flowing into the bypass water conducting bore 8b passes through the bypass passageway 6b in the conduit-forming member 6 and reaches each oscillation inducing element 4; it is then branched into two parts and flows into the oscillation inducing element 4 at essentially the same flow volume from the bypass inflow ports 4b on both sides. Therefore the flow volume ratio adjusting member 8 is constituted to enable the ratio to be varied between the flow volumes of hot or cold water flowing into the vortex street passageway 10b past the water collision portion 14 from the main flow inlet 4c on the oscillation inducing element 4 and hot or cold water flowing into the vortex street passageway 10b through the bypass passageway 6b.

    [0054] 0039 Hot or cold water flowing into the water supply passageway 10a from the main flow inlet 4c in the oscillation inducing element 4 collides with the water collision portion 14, which is disposed to block a portion of that flow path. Karman vortex streets of alternately opposite circulations are thus formed on both the left and right sides of the water collision portion 14 on the downstream side of the water collision portion 14. Karman vortexes formed by this water collision portion 14 grow as they are guided by the vortex street passageway 10b, and reach the discharge passageway 10c.

    [0055] 0040 Vortexes are produced on the downstream side of the water collision portion 14, and flow velocity increases in that part. This high flow velocity part (the dense colored part in Fig. 5) alternately appears on both sides of the water collision portion 14 and advances along the wall surface of the vortex street passageway 10b toward the spouting port 4a. Hot or cold water reaching the end portion of the vortex street passageway 10b collides with the stepped portion 12, and the direction of discharge is bent based on the flow velocity distribution in the spout port 4a. I.e., when the high flow velocity part of the hot or cold water is located at the top end of the spouting port 4a in Fig. 5, hot or cold water is sprayed downward; when the high flow velocity part thereof is positioned at the bottom end of the spouting port 4a, hot or cold water is sprayed upward. Thus by alternately generating Karman vortexes at the downstream side of the water collision portion 14, a flow velocity distribution is produced in the spout port 4a, and the jet flow is deflected. Because the position of the high flow velocity part moves reciprocally with the advance of the vortex street, sprayed hot or cold water also oscillates reciprocally.

    [0056] 0041 In addition to hot or cold water flowing in from such a main flow inlet 4c, hot or cold water also flows into the oscillation inducing element 4 from the bypass inflow ports 4b on both sides. Each bypass inflow port 4b is placed in the middle of the vortex street passageway 10b, further downstream than the water collision portion 14, so hot or cold water from each bypass inflow port 4b merges from the side with the flow that includes Karman vortexes formed by the water collision portion 14. I.e., hot or cold water flowing in from each of the bypass inflow ports 4b through the bypass passageway 6b detours the water collision portion 14 and flows into the vortex street passageway 10b. Note that in the present embodiment the flow velocity of hot or cold water flowing in from the bypass inflow ports 4b through the bypass inflow ports 4b is constituted to always be slower than the flow velocity of hot or cold water flowing into the vortex street passageway 10b past the water collision portion 14, regardless of the flow volume ratio adjusting member 8 setting.

    [0057] 0042 Next, referring to Figs. 6 through 8, we explain the action of hot or cold water flowing in from the bypass inflow ports 4b.

    [0058] Fig. 6 is a diagram showing water spouting when the ratio between hot or cold water flowing in from a main flow inlet 4c to total hot or cold water flowing in from each bypass inflow port is 9:1.

    [0059] In this case the majority of the hot or cold water flows in from the main flow inlet 4c, and since vortex streets in which strong Karman vortexes are formed by the water collision portion 14 reach the spout port 4a, the flow velocity in the spout port 4a changes greatly due to the advance of the vortex streets, and discharged hot or cold water is significantly deflected. Thus sprayed hot or cold water oscillates in a reciprocal motion at a high amplitude.

    [0060] 0043 Next, Fig. 7 is a diagram showing water spouting when the ratio between hot or cold water flowing in from a main flow inlet 4c to total hot or cold water flowing in from each bypass inflow port is 6:4.

    [0061] In this case the hot or cold water flowing in from the main flow inlet 4c diminishes, therefore the Karman vortexes formed by the water collision portion 14 are weakened. In addition, because hot or cold water not forming vortex flows from each bypass inflow port 4b merges inside the vortex street passageway 10b, changes in the flow velocity in the spout port 4a associated with the progress of the vortex street diminish, and discharged hot or cold water is no longer significantly deflected. The oscillation amplitude of sprayed hot or cold water is by this means reduced. However even when the ratio of the flow volume from the main flow inlet 4c to the flow volume from each bypass inflow port 4b is changed by manipulation of the flow volume ratio adjusting member 8, the total of these flow volumes does not change, therefore the total amount of discharged hot or cold water is essentially the same as in the Fig. 6 case.

    [0062] 0044 Next, Fig. 8 is a diagram showing water spouting when the ratio between hot or cold water flowing in from a main flow inlet 4c to total hot or cold water flowing in from each bypass inflow port is 5: 5.

    [0063] In this case the hot or cold water flowing in from the main flow inlet 4c diminishes, therefore Karman vortexes formed by the water collision portion 14 are further weakened. In addition, because of the increase in hot or cold water from each of the bypass inflow ports 4b, which does not form vortex flows, there are virtually no changes in the flow velocity at the spout port 4a associated with advance of a vortex street, and discharged hot or cold water advances directly, without oscillating. In this case as well, because the total flow volume at the main flow inlet 4c and at each bypass inflow port 4b is not changing, the total volume of discharged hot or cold water is essentially the same as shown in Fig. 6.

    [0064] Thus by manipulating the amplitude changing knob 2b, a user can change just the hot or cold water discharge area without changing the discharge flow volume, therefore a shower head with good usability can be obtained, capable of easily conforming to preferences or usage conditions.

    [0065] 0045 In the shower head 1 in an embodiment of the present invention, the oscillation amplitude of discharged hot or cold water can be changed using the ratio of hot or cold water from the water supply passageway 10a flowing into the oscillation inducing element 4 to hot or cold water from the bypass passageway 6b, therefore the oscillation inducing element 4 can change the amplitude of the reciprocating oscillation of discharged hot or cold water without comprising mechanical movable parts. A shower head 1 enabling the oscillation amplitude of jetted hot or cold water to be changed can thus be compactly constituted using a simple structure. Because the flow volume ratio adjusting member 8 changes the ratio between hot or cold water flowing in past the water collision portion 14 to hot or cold water flowing in through the bypass passageway 6b, the flow volume discharged from the shower head 1 is maintained at essentially a constant level even if the oscillation amplitude is changed by the flow volume ratio adjusting member 8, thus providing an easily usable shower head 1 with which the oscillation amplitude can be changed while holding flow volume constant.

    [0066] 0046 Using the shower head 1 of the present embodiment, the flow velocity of hot or cold water flowing in from the bypass passageway is slowed, therefore vortexes produced by the water collision portion 14 are not excessively extinguished, and by increasing the hot or cold water flowing in from the bypass passageway 6b, the oscillation amplitude can be gradually reduced and adjusted over a wide range.

    [0067] 0047 Furthermore, using the shower head 1 of the present embodiment the bypass passageway 6b allows hot or cold water to flow in from a direction perpendicular to the direction in which the water collision portion 14 extends, therefore for vortex streets formed on the downstream side of the water collision portion 14, hot or cold water passes through the bypass passageway 6b and flows in from the side. Vortex flows can thus be weakened without excessively destroying the formed vortexes; the oscillation amplitude can be gradually reduced, and can be adjusted over a broad range.

    [0068] 0048 In the shower head 1 of the present embodiment, essentially the same flow volume of hot or cold water from the bypass passageway 6b flows in from both sides of the vortex street passageway, therefore no major biasing occurs in the flow within the vortex street passageway, and biasing of the reciprocating oscillation of hot or cold water can be reduced.

    [0069] 0049 Moreover, by using the shower head 1 of the present embodiment, two bypass inflow ports 4b are disposed in mutually opposition, therefore the flow in the vortex street passageway 10b can be kept essentially symmetrical, and the reciprocating oscillation of discharged hot or cold water can be essentially symmetrically reduced.

    [0070] 0050 We have described above a preferred embodiment of the present invention, but various changes may be applied to the above-described embodiments. In particular, in the above-described embodiment the invention was applied to a shower head, but the invention may also be applied to any desired spout apparatus, such as a faucet apparatus used in a kitchen sink or washbasin, or a warm water flush apparatus installed on a toilet seat, or the like. In the above-described present embodiment, multiple oscillation inducing elements were provided in a shower head, but any desired number of oscillation inducing elements may be provided in the spout apparatus according to use, and a spout apparatus comprising a single oscillation inducing element may also be constituted.

    [0071] 0051 In the above-described embodiment of the invention we explained the shape of the oscillation inducing element passageway with terms such as "width" and "height" for convenience, but these terms do not define the direction in which the oscillation inducing element is disposed; the oscillation inducing element may be oriented in any desired direction. For example, an oscillation inducing element may also be used by orienting the "height" in the above-described embodiment in the horizontal direction.

    Explanation of Reference Numerals



    [0072] 0052

    1: A shower head, being the spout apparatus of the first embodiment of the invention.

    2: shower head main body (spout apparatus main body)

    2a: base end portion

    2b: amplitude changing knob

    4: oscillation inducing element

    4a: spout port

    4b: bypass inflow ports

    4c: main flow inlet

    6: conduit-forming member

    6a: main water conduit

    6b: bypass passageway

    6c: element insertion holes

    8: flow volume ratio adjusting member (flow volume ratio changing portion)

    8a: main water conducting bore

    8b: bypass water conducting bore

    10a: water supply passageway

    10b: vortex street passageway

    10c: discharge passageway

    12: stepped portion

    14: water collision portion

    102: spray nozzle

    102a: spray port

    104: feedback flow path

    110: anterior chamber

    112: outlet

    114: intake port

    116: obstacle

    118: replacement part

    120: replacement part




    Claims

    1. A spout apparatus (1) for discharging hot or cold water with reciprocal motion at a variable amplitude, comprising:

    a spout apparatus main body (2); and

    an oscillation inducing element (4) disposed in the spout apparatus main body for discharging supplied hot or cold water with a reciprocal motion from a spouting port (4a);

    wherein the oscillation inducing element (4) comprises:

    a water supply passageway (10a) into which water supplied from the spout apparatus main body (2) flows;

    a water collision portion (14) disposed on a downstream end portion of the water supply passageway (10a) so as to block a portion of a cross-section of the water supply passageway (10a), the water collision portion (14) alternately produces oppositely circulating vortexes on the downstream side of the water collision portion (14) by colliding with hot or cold water guided by the water supply passageway (10a);

    a vortex street passageway (10b) disposed on a downstream side of the water supply passageway (10a) for guiding and growing the vortexes formed by the water collision portion (14); and

    a discharge passageway (10c) disposed on a downstream side of the vortex street passageway (10b) for discharging water guided by the vortex street passageway (10b);

    characterized in that

    a bypass passageway (6b) for causing hot or cold water supplied from the spout apparatus main body (2) to flow into the vortex street passageway (10b), detouring the water supply passageway (10a) and the water collision portion (14); and

    a flow volume ratio changing portion (8), capable of changing the flow volume ratio between hot or cold water flowing into the vortex street passageway (10b) through the water collision portion (14) and hot or cold water flowing into the vortex street passageway (10b) through the bypass passageway (6b).


     
    2. The spout apparatus of Claim 1, wherein the flow volume ratio changing portion (8) can be set in a range such that the flow velocity of hot or cold water flowing into the vortex street passageway (10b) through the water collision portion (14) is faster than the flow velocity of hot or cold water flowing into the vortex street passageway (10b) through the bypass passageway (6b).
     
    3. The spout apparatus of Claims 1 or 2, wherein the water collision portion (14) is disposed to extend to traverse between a pair of opposing wall surfaces in the water supply passageway (10a), and the bypass passageway (6b) allows the inflow of hot or cold water in a direction perpendicular to the direction in which the water collision portion extends.
     
    4. The spout apparatus of any one of Claims 1 through 3, wherein the bypass passageway (6b) allows the inflow of substantially the same amount of hot or cold water from both sides of the vortex street passageway (10b).
     
    5. The spout apparatus of any one of Claims 1 through 4, wherein two bypass inflow ports (4b) for allowing hot or cold water to flow in from the bypass passageway (6b) to the vortex street passageway (10b) are disposed on the vortex street passageway (10b) in mutual opposition.
     
    6. The spout apparatus of any one of the preceding claims, wherein the flow volume ratio adjusting member (8) has a main water conducting bore 8a communicating with a main water conduit (6a) supplying water to the water supply passageway (10a), and a bypass water conducting bore (8b) communicating with the bypass passageway (6b),
    wherein the flow volume ratio adjusting member (8) is movable, in particular rotatable, and wherein the movement of the flow volume ratio adjusting member (8) changes in the degree of fit between the main water conduit (6a) and the main water conducting bore (8a), and between the bypass passageway (6b) and the bypass water conducting bore (8b), thereby changing the proportion of hot or cold water respectively flowing into 5 the main water conduit (6a) and the bypass passageway (6b).
     
    7. The spout apparatus of any one of the preceding claims, wherein the total volume of discharged hot or cold water is maintained essentially constant, even if the oscillation amplitude is changed by the flow velocity ratio changing portion (8), so that the spout apparatus can change oscillation amplitude while maintaining a fixed flow volume.
     
    8. The spout apparatus of any one of the preceding claims, wherein at least one of the water supply passageway (10a), the vortex street passageway (10b), and the discharge passageway (10c) has an essentially constant and preferably rectangular cross section, respectively, and wherein preferably the water supply passageway (10a) and the vortex street passageway (10b) have the same cross section.
     
    9. The spout apparatus of any one of the preceding claims 1 to 7, wherein the flow path cross sectional area of the discharge passageway (10c) is smaller than the flow path cross sectional area of the vortex street passageway (10b), so that hot or cold water guided by the vortex street passageway (10b) containing vortex streets is constricted by the discharge passageway (10c).
     
    10. The spout apparatus of any one of the preceding claims, wherein the water collision portion (14) is a triangular part and/or a columnar part extending so as to link to opposing wall surfaces in the height direction of the water supply passageway (10a), and is preferably disposed in an island shape at the center in the width direction of the water supply passageway (10a).
     
    11. The spout apparatus of any one of the preceding claims, wherein an upstream end of the water collision portion (14) is positioned further upstream than the upstream end of the vortex street passageway (10b), and a downstream end of the water collision portion (14) is disposed to be further downstream than the upstream end of the vortex street passageway (10b).
     
    12. The spout apparatus of any one of the preceding claims, wherein the oscillation inducing element (4) is free of a mechanically movable part.
     
    13. The spout apparatus of any one of the preceding claims, wherein the oscillation inducing element (4) is one of a plurality of oscillation inducing elements (4), wherein the oscillation inducing elements (4) are preferably embedded inside the main body (2) and/or are arrayed in a straight line in an axial direction.
     
    14. The spout apparatus of any one of the preceding claims, being a shower head.
     
    15. Use of the spout apparatus of any one of the preceding claims for discharging hot or cold water with reciprocal motion at a variable amplitude from the spouting port (4a), wherein an oscillation amplitude of discharged hot or cold water is changed by using the flow volume ratio changing portion (8) for changing the flow volume ratio of hot or cold water flowing into the vortex street passageway (10b) through the water collision portion (14) to hot or cold water flowing into the vortex street passageway through the bypass passageway (6b).
     


    Ansprüche

    1. Abgabevorrichtung (1) zum Ausleiten heißen oder kalten Wassers mit einer wechselseitigen Bewegung bei einer variablen Amplitude, umfassend:

    einen Abgabevorrichtungshauptkörper (2); und

    ein schwingungsinduzierendes Element (4), das im Abgabevorrichtungshauptkörper angeordnet ist, um zugeführtes heißes oder kaltes Wasser mit einer wechselseitigen Bewegung aus einer Abgabeöffnung (4a) auszuleiten;

    wobei das schwingungsinduzierende Element (4) umfasst:

    einen Wasserzufuhrdurchgang (10a), in den vom Abgabevorrichtungshauptkörper (2) zugeführtes Wasser fließt;

    einen Wasserkollisionsabschnitt (14), der an einem stromabwärts gelegenen Endabschnitt des Wasserzufuhrdurchgangs (10a) angeordnet ist, um einen Teil eines Querschnitts des Wasserzufuhrdurchgangs (10a) zu blockieren, wobei der Wasserkollisionsabschnitt (14) abwechselnd entgegengesetzt zirkulierende Wirbel auf der stromabwärts gelegenen Seite des Wasserkollisionsabschnitts (14) durch Kollidieren mit heißem oder kalten Wasser erzeugt, das durch den Wasserzufuhrdurchgang (10a) geleitet wird;

    einen Wirbelstraßendurchgang (10b), der auf einer stromabwärts gelegenen Seite des Wasserzufuhrdurchgangs (10a) angeordnet ist, um die durch den Wasserkollisionsabschnitt (14) gebildeten Wirbel zu leiten und zunehmen zu lassen; und

    einen Ausleitdurchgang (10c), der auf einer stromabwärts gelegenen Seite des Wirbelstraßendurchgangs (10b) angeordnet ist, um Wasser auszuleiten, das durch den Wirbelstraßendurchgang (10b) geleitet wird;

    gekennzeichnet durch

    einen Umgehungsdurchgang (6b), um zu bewirken, dass aus dem Abgabevorrichtungshauptkörper (2) zugeführtes heißes oder kaltes Wasser in den Wirbelstraßendurchgang (10b) fließt und dabei den Wasserzufuhrdurchgang (10a) und den Wasserkollisionsabschnitt (14) umgeht; und

    einen Strömungsvolumenverhältnisänderungsabschnitt (8), der in der Lage ist, ein Strömungsvolumenverhältnis zwischen heißem oder kaltem Wasser, das durch den Wasserkollisionsabschnitt (14) in den Wirbelstraßendurchgang (10b) fließt, und heißem oder kaltem Wasser, das durch den Umgehungsdurchgang (6b) in den Wirbelstraßendurchgang (10b) fließt, zu verändern.


     
    2. Abgabevorrichtung nach Anspruch 1, wobei der Strömungsvolumenverhältnisänderungsabschnitt (8) in einem Bereich so eingestellt werden kann, dass die Strömungsgeschwindigkeit von heißem oder kaltem Wasser, das durch den Wasserkollisionsabschnitt (14) in den Wirbelstraßendurchgang (10b) fließt, schneller ist als die Strömungsgeschwindigkeit von heißem oder kaltem Wasser, das durch den Umgehungsdurchgang (6b) in den Wirbelstraßendurchgang (10b) fließt.
     
    3. Abgabevorrichtung nach Anspruch 1 oder 2, wobei der Wasserkollisionsabschnitt (14) sich quer zwischen einem Paar entgegengesetzten Wandfläche im Wasserzufuhrdurchgang (10a) erstreckend angeordnet ist, und der Umgehungsdurchgang (6b) das Einströmen von heißem oder kaltem Wasser in einer Richtung senkrecht zu der Richtung zulässt, in der sich der Wasserkollisionsabschnitt erstreckt.
     
    4. Abgabevorrichtung nach einem der Ansprüche 1 bis 3, wobei der Umgehungsdurchgang (6b) das Einströmen von im Wesentlichen derselben Menge von heißem oder kaltem Wasser von beiden Seiten des Wirbelstraßendurchgangs (10b) her zulässt.
     
    5. Abgabevorrichtung nach einem der Ansprüche 1 bis 4, wobei zwei Umgehungseinströmöffnungen (4b), um heißes oder kaltes Wasser vom Umgehungsdurchgang (6b) her zum Wirbelstraßendurchgang (10b) einströmen zu lassen, gegenseitig entgegengesetzt am Wirbelstraßendurchgang (10b) angeordnet sind.
     
    6. Abgabevorrichtung nach einem der vorhergehenden Ansprüche, wobei das Strömungsvolumenverhältnisanpassungselement (8) eine Hauptwasser leitende Bohrung (8a), die mit einer Hauptwasserleitung (6a) in Verbindung steht, die Wasser zum Wasserzufuhrdurchgang (10a) zuführt, und eine Umgehungswasser leitende Bohrung (8b) hat, die mit dem Umgehungsdurchgang (6b) in Verbindung steht,
    wobei das Strömungsvolumenverhältnisanpassungselement (8) beweglich, insbesondere drehbeweglich ist, und wobei die Bewegung des Strömungsvolumenverhältnisanpassungselements (8) sich im Passgrad zwischen der Hauptwasserleitung (6a) und der Hauptwasser leitenden Bohrung (8a), und zwischen dem Umgehungsdurchgang (6b) und der Umgehungswasser leitenden Bohrung (8b) verändert, wodurch der Anteil von heißem oder kaltem Wasser geändert wird, das in die Hauptwasserleitung (6a) bzw. den Umgehungsdurchgang (6b) fließt.
     
    7. Abgabevorrichtung nach einem der vorhergehenden Ansprüche, wobei das Gesamtvolumen von ausgeleitetem heißen oder kalten Wasser im Wesentlichen konstant gehalten wird, auch wenn die Schwingungsamplitude durch den Strömungsgeschwindigkeitsverhältnisänderungsabschnitt (8) verändert wird, so dass die Abgabevorrichtung eine Schwingungsamplitude verändern kann und dabei ein feststehendes Strömungsvolumen aufrechterhält.
     
    8. Abgabevorrichtung nach einem der vorhergehenden Ansprüche, wobei der Wasserzufuhrdurchgang (10a), der Wirbelstraßendurchgang (10b) und/oder der Ausleitdurchgang (10c) jeweils einen im Wesentlichen konstanten und vorzugsweise rechteckigen Querschnitt hat, und wobei der Wasserzufuhrdurchgang (10a) und der Wirbelstraßendurchgang (10b) vorzugsweise denselben Querschnitt haben.
     
    9. Abgabevorrichtung nach einem der Ansprüche 1 bis 7, wobei die Strömungsbahnquerschnittsfläche des Ausleitdurchgangs (10c) kleiner ist als die Strömungsbahnquerschnittsfläche des Wirbelstraßendurchgangs (10b), so dass heißes oder kaltes Wasser, das durch den Wirbelstraßendurchgang (10b) geleitet wird und Wirbelstraßen enthält, durch den Ausleitdurchgang (10c) eingeschnürt wird.
     
    10. Abgabevorrichtung nach einem der vorhergehenden Ansprüche, wobei es sich bei dem Wasserkollisionsabschnitt (14) um ein dreieckiges Teil und/oder ein säulenförmiges Teil handelt, das sich so erstreckt, dass es entgegengesetzte Wandflächen in der Höhenrichtung des Wasserzufuhrdurchgangs (10a) verbindet und vorzugsweise inselförmig in der Mitte in der Breitenrichtung des Wasserzufuhrdurchgangs (10a) angeordnet ist.
     
    11. Abgabevorrichtung nach einem der vorhergehenden Ansprüche, wobei ein stromaufwärts gelegenes Ende des Wasserkollisionsabschnitts (14) sich weiter stromaufwärts befindet als das stromaufwärts gelegene Ende des Wirbelstraßendurchgangs (10b), und ein stromabwärts gelegenes Ende des Wasserkollisionsabschnitts (14) weiter stromabwärts angeordnet ist als das stromaufwärts gelegene Ende des Wirbelstraßendurchgangs (10b).
     
    12. Abgabevorrichtung nach einem der vorhergehenden Ansprüche, wobei das schwingungsinduzierende Element (4) frei von einem mechanisch beweglichen Teil ist.
     
    13. Abgabevorrichtung nach einem der vorhergehenden Ansprüche, wobei es sich bei dem schwingungsinduzierenden Element (4) um eines von mehreren schwingungsinduzierenden Elementen (4) handelt, wobei die schwingungsinduzierenden Elemente (4) vorzugsweise im Inneren des Hauptkörpers (2) eingebettet und/oder in einer geraden Linie in einer axialen Richtung aufgereiht sind.
     
    14. Abgabevorrichtung nach einem der vorhergehenden Ansprüche, bei der es sich um einen Duschkopf handelt.
     
    15. Verwendung der Abgabevorrichtung nach einem der vorhergehenden Ansprüche zum Ausleiten von heißem oder kaltem Wasser mit einer wechselseitigen Bewegung bei einer variablen Amplitude aus der Abgabeöffnung (4a),
    wobei eine Schwingungsamplitude von ausgeleitetem heißen oder kalten Wasser verändert wird, indem der Strömungsvolumenverhältnisänderungsabschnitt (8) verwendet wird, um das Strömungsvolumenverhältnis von heißem oder kaltem Wasser, das durch den Wasserkollisionsabschnitt (14) in den Wirbelstraßendurchgang (10b) fließt, und dem heißen und kalten Wasser zu verändern, das durch den Umgehungsdurchgang (6b) in den Wirbelstraßendurchgang fließt.
     


    Revendications

    1. Appareil à bec verseur (1) pour distribuer de l'eau chaude ou froide avec un mouvement de va-et-vient à une amplitude variable, comprenant :

    un corps principal d'appareil à bec verseur (2) ; et

    un élément inducteur d'oscillation (4) disposé dans le corps principal d'appareil à bec verseur pour distribuer de l'eau chaude ou froide fournie avec un mouvement de va-et-vient depuis un orifice de versement (4a) ;

    sachant que l'élément inducteur d'oscillation (4) comprend :

    une voie de passage de fourniture d'eau (10a) dans laquelle de l'eau fournie depuis le corps principal d'appareil à bec verseur (2) s'écoule ;

    une partie de collision d'eau (14) disposée sur une partie d'extrémité aval de la voie de passage de fourniture d'eau (10a) de manière à bloquer une partie d'une section transversale de la voie de passage de fourniture d'eau (10a), la partie de collision d'eau (14) produisant en alternance des tourbillons circulant en sens opposé du côté aval de la partie de collision d'eau (14) en entrant en collision avec de l'eau chaude ou froide guidée par la voie de passage de fourniture d'eau (10a) ;

    une voie de passage de routes de tourbillons (10b) disposée d'un côté aval de la voie de passage de fourniture d'eau (10a) pour guider et amplifier les tourbillons formés par la partie de collision d'eau (14) ; et

    une voie de passage de distribution (10c) disposée d'un côté aval de la voie de passage de routes de tourbillons (10b) pour distribuer de l'eau guidée par la voie de passage de routes de tourbillons (10b) ;

    caractérisé par

    une voie de passage de dérivation (6b) pour faire en sorte que de l'eau chaude ou froide fournie depuis le corps principal d'appareil à bec verseur (2) s'écoule dans la voie de passage de routes de tourbillons (10b), contournant la voie de passage de fourniture d'eau (10a) et la partie de collision d'eau (14) ; et

    une partie de changement de rapport de volume d'écoulement (8) capable de changer un rapport de volume d'écoulement entre de l'eau chaude ou froide s'écoulant dans la voie de passage de routes de tourbillons (10b) via la partie de collision d'eau (14) et de l'eau chaude ou froide s'écoulant dans la voie de passage de routes de tourbillons (10b) via la voie de passage de dérivation (6b).


     
    2. L'appareil à bec verseur de la revendication 1, sachant que la partie de changement de rapport de volume d'écoulement (8) peut être réglée dans une plage de telle sorte que la vitesse d'écoulement d'eau chaude ou froide s'écoulant dans la voie de passage de routes de tourbillons (10b) via la partie de collision d'eau (14) soit plus rapide que la vitesse d'écoulement d'eau chaude ou froide s'écoulant dans la voie de passage de routes de tourbillons (10b) via la voie de passage de dérivation (6b).
     
    3. L'appareil à bec verseur des revendications 1 ou 2, sachant que la partie de collision d'eau (14) est disposée pour s'étendre en travers entre une paire de surfaces de paroi opposées dans la voie de passage de fourniture d'eau (10a), et la voie de passage de dérivation (6b) permet l'entrée d'eau chaude ou froide dans une direction perpendiculaire à la direction dans laquelle la partie de collision d'eau s'étend.
     
    4. L'appareil à bec verseur de l'une quelconque des revendications 1 à 3, sachant que la voie de passage de dérivation (6b) permet l'entrée de sensiblement la même quantité d'eau chaude ou froide depuis les deux côtés de la voie de passage de routes de tourbillons (10b).
     
    5. L'appareil à bec verseur de l'une quelconque des revendications 1 à 4, sachant que deux orifices d'entrée de dérivation (4b) pour permettre à de l'eau chaude ou froide d'entrer depuis la voie de passage de dérivation (6b) vers la voie de passage de routes de tourbillons (10b) sont disposés sur la voie de passage de routes de tourbillons (10b) en opposition mutuelle.
     
    6. L'appareil à bec verseur de l'une quelconque des revendications précédentes, sachant que l'organe de réglage de rapport de volume d'écoulement (8) présente un alésage de conduction d'eau principal (8a) communiquant avec un conduit d'eau principal (6a) fournissant de l'eau à la voie de passage de fourniture d'eau (10a), et un alésage de conduction d'eau de dérivation (8b) communiquant avec la voie de passage de dérivation (6b),
    sachant que l'organe de réglage de rapport de volume d'écoulement (8) est mobile, en particulier rotatif, et sachant que le mouvement de l'organe de réglage de rapport de volume d'écoulement (8) change en termes de degré d'ajustement entre le conduit d'eau principal (6a) et l'alésage de conduction d'eau principal (8a), et entre la voie de passage de dérivation (6b) et l'alésage de conduction d'eau de dérivation (8b), changeant ainsi la proportion d'eau chaude ou froide s'écoulant respectivement dans le conduit d'eau principal (6a) et la voie de passage de dérivation (6b).
     
    7. L'appareil à bec verseur de l'une quelconque des revendications précédentes, sachant que le volume total d'eau chaude ou froide distribuée est maintenu sensiblement constant même si l'amplitude d'oscillation est changée par la partie de changement de rapport de vitesse d'écoulement (8) de telle sorte que l'appareil à bec verseur puisse changer d'amplitude d'oscillation tout en maintenant un volume d'écoulement fixe.
     
    8. L'appareil à bec verseur de l'une quelconque des revendications précédentes, sachant qu'au moins l'une de la voie de passage de fourniture d'eau (10a), de la voie de passage de routes de tourbillons (10b), et de la voie de passage de distribution (10c) a une section transversale sensiblement constante et de préférence rectangulaire, respectivement, et sachant que de préférence la voie de passage de fourniture d'eau (10a) et la voie de passage de routes de tourbillons (10b) ont la même section transversale.
     
    9. L'appareil à bec verseur de l'une quelconque des revendications 1 à 7, sachant que l'aire de section transversale de chemin d'écoulement de la voie de passage de distribution (10c) est plus petite que l'aire de section transversale de chemin d'écoulement de la voie de passage de routes de tourbillons (10b) de telle sorte que de l'eau chaude ou froide guidée par la voie de passage de routes de tourbillons (10b) et contenant des routes de tourbillons soit resserrée par la voie de passage de distribution (10c).
     
    10. L'appareil à bec verseur de l'une quelconque des revendications précédentes, sachant que la partie de collision d'eau (14) est une pièce triangulaire et/ou une pièce colonnaire s'étendant de manière à se relier à des surfaces de paroi opposées dans la direction de hauteur de la voie de passage de fourniture d'eau (10a), et est de préférence disposée en forme d'îlot au centre dans la direction de largeur de la voie de passage de fourniture d'eau (10a).
     
    11. L'appareil à bec verseur de l'une quelconque des revendications précédentes, sachant qu'une extrémité amont de la partie de collision d'eau (14) est positionnée plus en amont que l'extrémité amont de la voie de passage de routes de tourbillons (10b), et une extrémité aval de la partie de collision d'eau (14) est disposée pour être plus en aval que l'extrémité amont de la voie de passage de routes de tourbillons (10b).
     
    12. L'appareil à bec verseur de l'une quelconque des revendications précédentes, sachant que l'élément inducteur d'oscillation (4) est exempt de pièce mobile mécaniquement.
     
    13. L'appareil à bec verseur de l'une quelconque des revendications précédentes, sachant que l'élément inducteur d'oscillation (4) est l'une d'une pluralité d'éléments inducteurs d'oscillation (4), sachant que les éléments inducteurs d'oscillation (4) sont de préférence logés à l'intérieur du corps principal (2) et/ou agencés en ligne droite dans une direction axiale.
     
    14. L'appareil à bec verseur de l'une quelconque des revendications précédentes, lequel est un pommeau de douche.
     
    15. Utilisation de l'appareil à bec verseur de l'une quelconque des revendications précédentes pour distribuer de l'eau chaude ou froide avec un mouvement de va-et-vient à une amplitude variable depuis l'orifice de versement (4a),
    sachant qu'une amplitude d'oscillation d'eau chaude ou froide distribuée est changée en utilisant la partie de changement de rapport de volume d'écoulement (8) pour changer le rapport de volume d'écoulement d'eau chaude ou froide s'écoulant dans la voie de passage de routes de tourbillons (10b) via la partie de collision d'eau (14) par rapport à de l'eau chaude ou froide s'écoulant dans la voie de passage de routes de tourbillons via la voie de passage de dérivation (6b).
     




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    Cited references

    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description