TECHNICAL FIELD
[0001] The present invention relates to a beverage dispenser.
BACKGROUND ART
[0002] As a beverage dispenser for dispensing a beverage that is contained in a small bottle
such as a beer bottle into a vessel, there is a beverage dispenser that employs a
method in which a dispensing nozzle is inserted into a bottle and a pressure is applied
in the container of a beverage to push down the liquid level of the beverage to dispense
the beverage through the dispensing nozzle.
[0003] A beverage dispenser disclosed in PTL 1 includes a main body with an open upper end,
an inner lid installed on an upper portion of the main body, and an outer lid which
covers the inner lid and can be put on the upper end of the main body. The inner lid
includes a plurality of liquid pumping pipes, each to be inserted into a corresponding
one of a plurality of beverage cans, and a beverage discharge pipe connected to the
plurality of liquid pumping pipes and configured to discharge the beverage to the
outside of the main body. The outer lid includes a pump for sending air to the space
inside the main body and an operating member for performing an operation to switch
between a beverage discharging state and a beverage non-discharging state. However,
since such a beverage dispenser requires a long dispensing nozzle, it is disadvantageous
in terms of maintenance such as management of sanitation and the like.
[0004] PTL 2 discloses a beverage supplying apparatus that allows a beverage to be dispensed
by gravity. The beverage supplying device includes a bottle-dedicated dispensing valve
which can be attached to a bottle. The bottle-dedicated dispensing valve is formed
by an attachment base portion, which is to be put on a dispensing portion of a bottle,
and a dispensing nozzle portion which is detachably connected to the attachment base
portion. The bottle, the attachment base portion, and the dispensing nozzle portion
are arranged coaxially on a vertical axis line of the bottle-dedicated dispensing
valve. However, in such an arrangement, adjusting the tilt angle of the bottle to
an appropriate angle will make the tilt angle of the dispensing nozzle portion inappropriate,
and, on the other hand, adjusting the tilt angle of the dispensing nozzle portion
to an appropriate angle will make the tilt angle of the bottle inappropriate. Thus,
in either case, the beverage to be dispensed may splatter or foam up. In addition,
such an arrangement can also increase the lateral dimension occupied by the beverage
supplying apparatus and the bottle.
CITATION LIST
PATENT LITERATURE
SUMMARY OF INVENTION
TECHNICAL PROBLEM
[0006] An object of the present invention is to allow a beverage to be quietly dispensed
into a vessel and/or to reduce an area occupied by a beverage dispenser and a bottle.
SOLUTION TO PROBLEM
[0007] An aspect of the present invention relates to a beverage dispenser that dispenses
a beverage contained in a bottle into a vessel, and the beverage dispenser comprises
a bottle holding portion configured to hold, in a tilted state, the bottle to which
a valve assembly has been attached, and a nozzle holding portion configured to hold
a dispensing nozzle, wherein the dispensing nozzle includes, on one end, a receiving
port configured to receive an outlet of the valve assembly, includes, on the other
end, a dispensing port, and dispenses, from the dispensing port to the vessel, the
beverage that flows into the receiving port from the bottle via the valve assembly,
and a tilt angle of an axis of the dispensing port is larger than a tilt angle of
an axis of the bottle held by the bottle holding portion.
ADVANTAGEOUS EFFECTS OF INVENTION
[0008] According to the present invention, a time required until the start of dispensing
of a beverage can be shortened, a beverage can be quietly dispensed, and/or an area
occupied by a beverage dispenser and a bottle can be reduced.
BRIEF DESCRIPTION OF DRAWINGS
[0009]
Fig. 1 is a side view showing the arrangement of a beverage dispenser according to
an embodiment;
Fig. 2 is a side view (partly a sectional view) showing the arrangement of the beverage
dispenser according to the embodiment;
Fig. 3A is a view showing the arrangement of a valve assembly and a dispensing nozzle
of the beverage dispenser according to the embodiment;
Fig. 3B is a view showing the arrangement of the valve assembly and the dispensing
nozzle of the beverage dispenser according to the embodiment;
Fig. 4A is a view showing the arrangement of the valve assembly and the dispensing
nozzle of the beverage dispenser according to the embodiment;
Fig. 4B is a view showing the arrangement of the valve assembly and the dispensing
nozzle of the beverage dispenser according to the embodiment;
Fig. 5 is a view showing the arrangement of the dispensing nozzle according to the
embodiment;
Fig. 6A is a view showing the arrangement of the dispensing nozzle according to the
embodiment; and
Fig. 6B is a view showing the arrangement of the dispensing nozzle according to the
embodiment.
DESCRIPTION OF EMBODIMENTS
[0010] Embodiments will be described in detail hereinafter with reference to the accompanying
drawings. Note that the following embodiments are not intended to limit the scope
of the appended claims, and not all of the combinations of features described in the
embodiments are necessarily essential to the present invention. Two or more of a plurality
of features described in the embodiments may be arbitrarily combined. In addition,
the same reference numerals denote the same or similar components, and a repetitive
description thereof will be omitted.
[0011] Figs. 1 and 2 are side views each showing the arrangement of a beverage dispenser
1 according to an embodiment. Fig. 2 is a view in which a part of the beverage dispenser
1 has been cut out, and a portion shaded with diagonal lines shows the sectional arrangement.
Figs. 3A, 3B, 4A, and 4B show the arrangement of a valve assembly 30 and a dispensing
nozzle 50 of the beverage dispenser 1. Figs. 4A and 4B each show a view in which a
part of the valve assembly 30 has been cut out, and a portion shaded with diagonal
lines shows the sectional arrangement. Figs. 5, 6A, and 6B show the arrangement of
the dispensing nozzle 50.
[0012] A beverage contained in a bottle 10 is dispensed into a vessel 20 by the beverage
dispenser 1 by using gravity that acts on the beverage. The term "bottle" is to be
broadly interpreted, and the material forming the bottle 10 is not limited to a specific
material. The bottle 10 can be made of, for example, glass, plastic, a metal, wood,
paper, or a mixed material obtained by combining two or more of these materials. The
beverage can be a carbonated beverage such as beer or the like, but may also be a
non-carbonated beverage.
[0013] The beverage dispenser 1 can include the valve assembly 30 and the dispensing nozzle
50. The valve assembly 30 is attached to a mouth 11 of the bottle 10. As shown in
Figs. 4A and 4B, the valve assembly 30 can include a valve 35 for controlling the
dispensing of the beverage from the beverage dispenser 1. Also, as shown in Figs.
2, 3A, and 3B, the valve assembly 30 can include an operating portion 37 for opening
and closing the valve 35. As shown in Fig. 5, a receiving port (inlet) 51 for receiving
an outlet 31 of the valve assembly 30 is included on one end and a dispensing port
(outlet) 52 can be included on the other end of the dispensing nozzle 50. The dispensing
nozzle 50 can dispense the beverage, which flows from the bottle 10 into the receiving
port 51 via the valve assembly 30, from the dispensing port 52 into the vessel 20.
[0014] The beverage dispenser 1 can include a bottle holding portion 41 and a nozzle holding
portion 42. The beverage dispenser 1 can include a main body structure 40. The bottle
holding portion 41 and the nozzle holding portion 42 can form a part of the main body
structure 40 or be supported by the main body structure 40. The bottle 10 with the
valve assembly 30 attached to the mouth 11 can be held in a tilted state by the bottle
holding portion 41. In this case, a tilted state refers to a state in which an axis
LX1 (for example, a center axis) of the bottle 10 is tilted with respect to a horizontal
plane.
[0015] As shown in Fig. 3B, a tilt angle α of the axis LX1 of the bottle 10 is defined as
an angle of the axis LX1 of the bottle 10 with respect to a horizontal plane. The
nozzle holding portion 42 can hold the dispensing nozzle 50. As shown in Fig. 3B,
a tilt angle β of an axis LX2 of the dispensing port 52 is defined as an angle of
the axis LX2 of the dispensing port 52 with respect to a horizontal plane. The tilt
angle β of the axis LX2 of the dispensing port 52 is greater than the tilt angle α
of the axis LX1 of the bottle 10 held by the bottle holding portion 41. The tilt angle
α of the axis LX1 of the bottle 10 and a tilt angle β of the axis LX2 of the dispensing
port 52 are determined individually. This will allow the beverage contained in the
bottle 10 to be dispensed quietly into the vessel 20 so that it will be advantageous
in, for example, suppressing coarse bubbles from being formed in the dispensed beverage
and preventing splattering during dispensing of the beverage.
[0016] In addition, if the tilt angle α of the axis LX1 of the bottle 10 and the tilt angle
β of the axis LX2 of the dispensing port 52 are set to be the same and the tilt angle
α (= β) is set to an appropriate angle, the lateral dimension (horizontal dimension)
occupied by the bottle 10 and the beverage dispenser 1 will be large when the bottle
10 is installed in the beverage dispenser 1. In contrast, if the tilt angle β of the
axis LX2 of the dispensing port 52 is greater than the tilt angle α of the axis LX1
of the bottle 10 held by the bottle holding portion 41, it will be possible to reduce
the lateral dimension (horizontal dimension) occupied by the bottle 10 and the beverage
dispenser 1 while allowing the tilt angles α and β to be set to their respective appropriate
tilt angles.
[0017] The tilt angle α of the axis LX1 of the bottle 10 held by the bottle holding portion
41 can be 20° or more and 45° or less or, more preferably, 25° or more and 30° or
less. Such tilt angle α will be advantageous in preventing the beverage from remaining
in the bottle 10 and reducing a pressure change (for example, a change in a pressure
that acts on the beverage in the valve assembly 30 or a change in a pressure that
acts on the beverage in a curved portion 531 (to be described later)) due to a reduction
in the liquid level of the beverage in the bottle 10 during dispensing. Reducing the
pressure change will make it easier to design the dispensing nozzle 50 so as to prevent
foaming and splattering of the beverage to be dispensed.
[0018] The tilt angle β of the axis LX2 of the dispensing port 52 is preferably 70° or more
and 110° or less, and is most preferably 90°. Such tilt angle β is advantageous in
reducing the lateral dimension (horizontal dimension) occupied by the bottle 10 and
the beverage dispenser 1. Also, such tilt angle β is advantageous in reducing an impact
(this impact can cause coarse bubbles to be generated) applied to the beverage while
it is exiting from the dispensing port 52.
[0019] In Figs. 3A and 3B, the dispensing nozzle 50 held by the nozzle holding portion 42
is shown cut out from the drawing of Fig. 1 for the sake of descriptive convenience.
That is, in reality, the dispensing nozzle 50 is held by the nozzle holding portion
42 and incorporated in the beverage dispenser 1. As shown in Figs. 3A and 3B, the
bottle 10 can be arranged in the bottle holding portion 41 so that the outlet 31 of
the valve assembly 30 attached to its mouth 11 is inserted into the receiving port
51.
[0020] The beverage dispenser 1 can include a valve driving mechanism (not shown) for driving
the valve 35 of the valve assembly 30. The valve driving mechanism includes, as exemplified
in Fig. 2, an engaging portion 43 that engages with the operating portion 37 of the
valve assembly 30, and the operating portion 37 can engage with the engaging portion
43 when the bottle 10 to which the valve assembly 30 is attached is arranged in the
bottle holding portion 41 (the valve 35 is in a closed state at this time). The valve
driving mechanism can start the dispensing of the beverage by rotating the operating
portion 37 to change the state of the valve 35 from the closed state to an open state.
[0021] As shown in Figs. 4A and 4B, the valve assembly 30 can include a fixing portion 32
to be fixed to the bottle 10, the outlet (connecting port) 31 to be connected to a
tube 55, a channel forming member 34 which forms a channel 33 between the fixing portion
32 and the outlet (connecting port) 31, and the valve 35 arranged in the channel 33.
The channel forming member 34 can include a vent hole 36 arranged between the valve
35 and the outlet (connecting port) 31.
[0022] As shown in Figs. 1 and 2, the beverage dispenser 1 can include a vessel holding
portion 60 for holding the vessel 20 and a tilting mechanism 44 that drives the vessel
holding portion 60 so as to change the tilt angle of the vessel 20 in accordance with
the progress of the dispensing of the beverage contained in the bottle 10. The beverage
dispenser 1 can also include an ultrasonic oscillator 70 that supplies ultrasonic
waves to the beverage, which is to be dispensed from the bottle 10 to the vessel 20
via the valve assembly 30 and the dispensing nozzle 50, to generate fine bubbles in
the beverage.
[0023] When a dispensing button (not shown) is pressed, the beverage dispenser 1 can start
dispensing the beverage by using the tilting mechanism 44 to tilt the vessel 20 from
an erect state and using the valve driving mechanism to cause the operating portion
37 to rotate to change the state of the valve 35 from the closed state to the open
state. After a set time has elapsed, the beverage dispenser 1 will use the tilting
mechanism 44 to make the vessel 20 return to the erect state (tilt angle = 90°) and
dispense the beverage into the vessel 20 upon causing fine bubbles to generate in
the beverage by operating the ultrasonic oscillator 70.
[0024] The arrangement of the dispensing nozzle 50 will be described with reference to Figs.
5, 6A, and 6B hereinafter. The dispensing nozzle 50 is used for dispensing the beverage
contained in the bottle 10 into the vessel 20. The dispensing nozzle 50 can be used
by being connected to the bottle 10 via the valve assembly 30 in the beverage dispenser
1, but can also be used in a state in which a user holds the bottle 10 by hand. In
addition, a connecting portion for directly connecting the dispensing nozzle 50 to
the bottle 10 may be provided in the dispensing nozzle 50. Furthermore, a member such
as another tube member or the like may be connected to the side of the dispensing
port (outlet) 52 of the dispensing nozzle 50.
[0025] The dispensing nozzle 50 can include the tube 55 which has the receiving port (inlet)
51 through which the beverage enters and the dispensing port (outlet) 52 from which
the beverage exits. The dispensing nozzle 50 can also include an operating handle
511. The handle 511 can be connected to, for example, the tube 55. The tube 55 can
include an upstream portion 510 on the side of the receiving port (inlet) 51, a downstream
portion 520 on the side of the dispensing port (outlet) 52, and a middle portion 530
between the upstream portion 510 and the downstream portion 520. The middle portion
530 can include the curved portion 531 which forms a curve C in a channel 550 for
the beverage in the tube 55.
[0026] Fig. 6A is a sectional view of a portion on the side of the upstream portion 510
in the curved portion 531, more specifically, a sectional view taken along a line
A - A' of Fig. 5. Fig. 6B is a sectional view of a portion on the side of the downstream
portion 520 of the curved portion 531, more specifically, a sectional view taken along
a line B - B' of Fig. 5. It is preferable for a channel sectional area A1 of the portion
(section A - A') on the side of the upstream portion 510 in the curved portion 531
to be smaller than a channel sectional area A2 of the portion (section B - B') on
the side of the downstream portion 520 in the curved portion 531. It has been confirmed
that this kind of an arrangement has an effect of reducing pulsation in which the
dispensing flow rate of the beverage will change intermittently.
[0027] In a section taken by cutting a portion of the curved portion 531 along a plane perpendicular
to the channel 550, more specifically, an inner surface of the curved portion 531
facing the channel 550 in Fig. 6A (the section A - A' of Fig. 5), it is preferable
to have an arrangement in which a radius of curvature of a first portion P1 which
is closer to the inner side of the curve C is smaller than a radius of curvature of
a second portion P2 which is closer to the outer side of the curve C. In other words,
it is preferable for the inner surface of the curved portion 531 facing the channel
550 in Fig. 6A (the section A-A' of Fig. 5) to have an arrangement in which the curvature
of the first portion P1 which is closer to the inner side of the curve C is larger
than the curvature of the second portion P2 which is closer to the outer side. It
has been confirmed that this kind of arrangement is highly effective in reducing pulsation.
In one example, in Fig. 6A (the section A - A' of Fig. 5), the first portion PI, which
is closer to the inner side of the curve C of the inner surface of the curved portion
531 facing the channel 550, can have an arc shape, and the second portion P2, which
is closer to the outer side of the curve C of the inner surface of the curved portion
531 facing the channel 550, can have a linear shape. In addition, in one example,
in Fig. 6A (the section A - A' of Fig. 5), the thickness of the first portion PI,
which is closer to the inner side of the curve C of the inner surface of the curved
portion 531 facing the channel 550, is smaller than the thickness the second portion
P2, which is closer to the outer side of the curve C of the inner surface of the curved
portion 531 facing the channel 550.
[0028] An angle γ formed between the direction of travel of the beverage in the channel
550 in the upstream portion 510 and the direction of travel of the beverage in the
channel 550 in the downstream portion 520 can be 110° or more and 125° or less, more
preferably, 115° or more and 120° or less. Such angle γ is advantageous in preventing
the beverage from remaining in the bottle 10 and reducing the pressure change due
to a reduction in the liquid level of the beverage in the bottle 10 during dispensing.
[0029] Although the valve assembly 30 has been described above as a component different
from the dispensing nozzle 50, an aggregate of the tube 55 and the valve assembly
30 described above may also be understood to be the dispensing nozzle.
[0030] The invention is not limited to the foregoing embodiments, and various variations/changes
are possible within the spirit of the invention.
REFERENCE SIGNS LIST
[0031] 1: beverage dispenser, 10: bottle, 11: mouth, 20: vessel, 30: valve assembly, 31:
outlet, 32: fixing portion, 33: channel, 34: channel forming member, 35: valve, 36:
vent hole, 40: main body structure, 41: bottle holding portion, 42: nozzle holding
portion, 43: engaging portion, 44: tilting mechanism, 50: dispensing nozzle, 51: receiving
port (inlet), 52: dispensing port (outlet), 70: ultrasonic oscillator, 510: upstream
portion, 520: downstream portion, 530: middle portion, 531: curved portion, 550: channel,
P1: first portion, P2: second portion, A1: channel sectional area of section taken
along line A - A', A2: channel sectional area of section taken along line B - B',
C: curve
1. A beverage dispenser that dispenses a beverage contained in a bottle into a vessel,
characterized by comprising:
a bottle holding portion configured to hold, in a tilted state, the bottle to which
a valve assembly has been attached; and
a nozzle holding portion configured to hold a dispensing nozzle,
wherein the dispensing nozzle includes, on one end, a receiving port configured to
receive an outlet of the valve assembly, includes, on the other end, a dispensing
port, and dispenses, from the dispensing port to the vessel, the beverage that flows
into the receiving port from the bottle via the valve assembly, and
a tilt angle of an axis of the dispensing port is larger than a tilt angle of an axis
of the bottle held by the bottle holding portion.
2. The beverage dispenser according to claim 1, characterized in that the tilt angle of the axis of the bottle held by the bottle holding portion is not
less than 20° and not more than 35°.
3. The beverage dispenser according to claim 1, characterized in that the tilt angle of the axis of the bottle held by the bottle holding portion is not
less than 25° and not more than 30°.
4. The beverage dispenser according to any one of claims 1 to 3, characterized in that the bottle is arranged in the bottle holding portion so that the outlet of the valve
assembly attached to the bottle will be inserted in the receiving port.
5. The beverage dispenser according to any one of claims 1 to 4, characterized in that the valve assembly includes a fixing portion to be fixed to the bottle, a channel
forming member forming a channel between the fixing portion and the outlet, and a
valve arranged in the channel, and
the channel forming member includes a vent hole which is arranged between the valve
and the outlet.
6. The beverage dispenser according to claim 5, characterized by further comprising:
a valve driving mechanism configured to drive the valve.
7. The beverage dispenser according to claim 6,
characterized in that the valve assembly includes an operating portion configured to open and close the
valve,
the valve driving mechanism includes an engaging portion configured to engage with
the operating portion, and
the operating portion engages with the engaging portion when the bottle to which the
valve assembly has been attached is arranged in the bottle holding portion.
8. The beverage dispenser according to any one of claims 1 to 7,
characterized by further comprising:
a vessel holding portion configured to hold the vessel; and
a tilting mechanism configured to drive the vessel holding portion so as to change
a tilt angle of the vessel in accordance with the progress of dispensing of the beverage
contained in the bottle.
9. The beverage dispenser according to any one of claims 1 to 8,
characterized in that the dispensing nozzle includes a tube which includes an inlet configured to allow
a beverage to flow in and an outlet configured to allow the beverage to flow out,
the tube includes an upstream portion on a side of the receiving port, a downstream
portion on a side of the dispensing port, and a middle portion between the upstream
portion and the downstream portion, and the middle portion includes a curved portion
configured to form a curve in a channel for the beverage in the tube, and
a channel sectional area of a portion closer to a side of the upstream portion in
the curved portion is smaller than a channel sectional area of a portion closer to
a side of the downstream portion in the curved portion.
10. The beverage dispenser according to claim 9, characterized in that in a section taken by cutting a portion of the curved portion along a plane perpendicular
to the channel, an inner surface of the curved portion facing the channel includes
a first portion which is closer to an inner side of the curve and has a radius of
curvature smaller than a radius of curvature of a second portion closer to an outer
side of the curve.
11. The beverage dispenser according to claim 10, characterized in that in the section, the first portion, which is closer to the inner side of the curve
of the inner surface of the curved portion facing the channel, has an arch shape,
and the second portion, which is closer to the outer side of the curve of the inner
surface of the curved portion facing the channel, has a linear shape.
12. The beverage dispenser according to claim 10 or 11, characterized in that in the section, the thickness of the first portion, which is closer to the inner
side of the curve of the inner surface of the curved portion facing the channel, is
smaller than the thickness of the second portion, which is closer to the outer side
of the curve of the inner surface of the curved portion facing the channel.