A shaving machine

Description

BACKGROUND

1. TECHNICAL FIELD

[0001] The present invention relates to the field of shaving machines, and more particularly, to a skin safe shaving machine.

2. DISCUSSION OF RELATED ART

[0002] Shaving machines (illustrated in prior art Figures 1A, and 4A-4C) are in continuous development towards achieving an ever smoother shave. However, a smooth shave is accompanied by some skin injury, or at least a risk of skin injury. Due to this damage risk, for some users a smooth shave is disadvantageous, for example users suffering from skin problems, ingrown hairs, or reverse hair growth, or users keeping religious practices that prohibit damaging the skin.

[0003] Trimmers are designed to cut hair to bristles, but trimmer cut bristles are quite rough and long, and trimmers are not designed for shaving a face.

[0004] The following patents and patent applications are incorporated herein by reference in their entirety: British Patent Document No. 2063752, U.S. Patent Publication No. 2008134513 and U.S. Patents Nos. 6032365 and 4336650, and Chinese Patent Document Nos. 200945636, 2544911, 2712565 and 1 169351, which discloses various types of shavers.

[0005] US 2,616,169 discloses a flat shaving head provided with two interfitting apertured cutting plates for a dry shaving device. The relative position of plates is adjustable, in order to control the size of the apertures.

[0006] EP 1 231 034 and US 2008/0313910 disclose a dry shaver for a variable height of cut, with a single cutter blade and a single cooperating shear blade. The thickness of the shear blade varies over the surface thereof, such that a spacing between a portion of the skin engaging surface of the shear balde and an opposite face thereof is increased as compared with a spacing required to achieve a close shave.

[0007] US 5,993,440 discloses a hand-held, non-invasive laser cutting device for cutting a hair projecting from the surface of body skin. The beam which is generated by an optical fiber is directed through an interior cutting zone and cannot exit the cutting window.

BRIEF SUMMARY

[0008] Embodiments of the present invention provide a rotary type shaving machine for providing a user selected bristle length comprising (a) a circular basic grid having a center, a predefined thickness and predefined pore sizes, distances between pores and geometric characteristics, (b) a circular and circularly rotatable razorblade having a center and positioned below said basic grid for cutting hairs that enter through said basic grid, and the shaving machine characterised in that it further comprises (c) an additional circular grid replaceably mountable to said basic grid, said additional grid having a predefined thickness and the same pore sizes, distance between pores and geometrical characteristics as said basic grid, (d) two centering attachment elements provided with said basic grid and said additional grid respectively, which, after attachment, are coaxial with the central axis of said basic grid, said additional grid and said razorblade, wherein said centering attachment elements provided with said basic grid is a notch or protrusion to fit a corresponding protrusion or notch in said additional grid and e) two peripheral attachment elements provided with said basic grid and said additional grid, respectively, for being secured to each other, wherein said peripheral attachment element provided with said basic grid is a notch or protrusion to fit a corresponding protrusion or notch in said additional grid, wherein said two centering attachment elements and said two peripheral attachment elements allow for mutual attachment of said basic grid to said additional grid, in such a way to ensure congruency of pores in said additional grid to pores in said basic grid, and wherein the range of overall thickness of said basic grid and said additional grid is selected from the group consisting of 0.26-0.29mm, 0.27-0.30mm, 0.30-0.32mm, 0.32-0.38mm, 0.38-0.41mm, 0.41-0.44mm, 0.44-0.48mm, and 0.32-0.44mm such as to cut the hairs at a predefined user selected distance from the skin, to completely avoid a risk of damaging the skin, for protecting the skin and for keeping religious practices.

[0009] A kit comprising a plurality of circular additional grids replaceably mountable to a circular basic grid of a rotary type shaving machine is also provided.

[0010] These, additional, and/or other aspects and/or advantages of the present invention are: set forth in the detailed description which follows; possibly inferable from the detailed description; and/or learnable by practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be more readily understood from the detailed description of embodiments thereof made in conjunction with the accompanying drawings of which:

Figures 1B-1H are schematic illustrations of a shaving machine of the rotary type, and mountable grids of different thicknesses and configurations, according to some embodiments of the invention;

Figures 2A-2F are schematic illustrations of additional grids of varying thickness mountable to and below a basic grid, and included in a kit for a shaving machine of the rotary type, according to some embodiments of the invention;

Figures 3A-3G are schematic illustrations of additional grids of varying thickness mountable upon and above a basic grid, and included in a kit for a shaving machine of the rotary type, according to some embodiments of the invention;

Figures 4A-4C are illustrations of traditional shaving machines according to the prior art; Figures 5A and 5B are schematic illustrations of an additional grid mountable on a basic grid of a shaving machine of the foil type, according to some embodiments of the invention;

Figures 6A and 6B are schematic diagrams illustrating the avoidance of skin damage, according to some embodiments of the invention;

Figure 7 is a schematic flowchart illustration of a method, according to some embodiments of the invention;

Figure 8 is a schematic flowchart illustration of a cap for a rotary shaving machine, according to some embodiments of the invention; and

Figure 9 illustrates a shaving machine according to embodiments of the present invention.

DETAILED DESCRIPTION

[0012] Before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The invention is applicable to other embodiments or of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein is for the purpose of description and should not be regarded as limiting.

[0013] For a better understanding of the invention, the usages of the following terms in the present disclosure are defined in a non-limiting manner:

[0014] The term "pores" as used herein in this application, is defined as spaces in a grid of a shaving machine, including slots, holes, slits and other types of openings (triangular, squares, rectangles and the like).

[0015] The term "basic grid" as used herein in this application, is defined as a grid in the shaving machine that is either supplied as an original grid with the shaving machine or replaces such an original grid. The basic grid can have a thickness between 0.10-0.42 mm.

[0016] Figures 1B-1H, 2A-2F, 3A-3G, 5A and 5B illustrate shaving machines 100 according to embodiments of the present invention. Shaving machine 100 has a cutting element 90 such as a moveable razorblade arranged to cut hairs 95 that enter through grid 110, and positioned below a grid 110 with pores 120. Grid 110 has a specified thickness 112 and pores 120 have specified pore sizes 114, specified distances 115 between pores 120 and specified geometric characteristics, e.g. inclination angle 126 of elongated pores 120 in Figure 1F. In one exemplary embodiment, the pores may have a 'V shape' cross section that facilities the cutting process by accumulating hair from an area larger than the respective cutting area. In another exemplary embodiment, the grid may be made from a plastic material with specified properties that provide both hard structure and comfort feel for the face.

[0017] Specified thickness 112 is selected such as to cut hairs 95 at a predefined distance 116 from skin 80, to completely avoid a risk of damaging skin 80. Figures 6A and 6B are schematic diagrams illustrating the avoidance of skin damage, according to some embodiments of the invention.

[0018] Specified thickness 112 is larger than useable for achieving a smooth shave and is selected to cut hairs 95 to bristles 96 in a predefined length range 118. Cutting hairs 90 at specified distance 118 prevents various skin injuries such as direct injuries and -hair growth injuries such as ingrown hairs and razor bumps.

[0019] The invention allows a user regulate thickness 112 of grid 110 to achieve a desired bristle length. The regulation of thickness 112 is carried out according to one of three basic principles: (i) replacement of the existing grid, (ii) adding one additional grid, and (iii) adding several additional grids to achieve an over-all required thickness. Adding additional grids may be carried out on top or beneath the existing grid, and in any case, pore characteristics (specified sizes 114, specified distances 115, specified geometric characteristics such as form and inclination angle 126) are the same in the add-ons as in the basic grid, and the add-ons are congruent to the existing grid.

[0020] The existing grid has notches or protrusions 123. The added grid or grids have corresponding protrusions or notches 124 that fit notches or protrusions 123 (respectively). In case (iii) of adding multiple additional grids, protrusions or notches 124 are arranged to connect them in a stable manner to grid 110. Particularly, protrusions or notches 124 are arranged to ensure congruency of pores 120 in the added grid(s) to pores 120 in the existing grid 110.

[0021] As examples, the following relates to two types of popular shaving machines: a rotary type- an electric shaver with rotary heads (Figures 1B-1H, 2A-2F, 3A-3G),and a foil type (Figures 5A and 5B). The invention is not limited to these types. Figures 1B-1H are schematic illustrations of shaving machine 100 of the rotary type, and grids 110 of different thicknesses 112, according to some embodiments of the invention. The rotary type has razorblade 90 arranged to move circularly beneath grid 110 with elongated, substantially parallel pores 120. The inventors have long experimented to find the optimal parameters of grid 110, and have found them to be: pore diameter 114 between 0.2 and 0.35 mm, interspaced by between 0.15 and 0.3 mm, and thickness 112 of grid 110 between 0.12 and 0.48 mm.

[0022] Figures 2A-2E are schematic illustrations of additional grids 119 of varying thickness 112B-E mountable to and below basic grid 110 with 112A thickness, and included in a kit for shaving machine 100 of the rotary type, according to some embodiments of the invention. Embodiments of the invention comprise a kit for shaving machine 100 comprising a plurality of additional grids 119, each characterized by specified thickness 112B-F and specified pore sizes 114 and distances 115. Any of additional grids 119 may be mounted in shaving machine 100 to allow a user adjust bristle length and skin damage avoidance to the user's facial characteristics. Additional grids 119 may be mounted singly or group-wise, to allow the user reach exactly the proffered overall grid thickness that fits the user's needs. Additional grids 119 may have notches or protrusions 134 that secure additional grids 119 to each other and to a protrusion or a notch (respectively) 133 of basic grid 110 as exemplified Figure 2F. Sides and edges of additional grids 119 are also arranged to fit upon each other and to fit with basic grid 110 from below.

[0023] Additional grids 119 may differ in their thicknesses 112B-112E and radii 122B-122E, allowing adjustment by the user to different skin characteristics and sensibilities, as well as for achieving different bristle length. For example, each additional grid 119 may have thicknesses 112B-112E between 0.05-0.08 mm and radii 122B-122E between 2.2 and 2.0 mm.

[0024] Figures 3A-3G are schematic illustrations of additional grids 119 of varying thickness 112B-E mountable upon and above basic grid 110 with 112A thickness, and included in a kit for shaving machine 100 of the rotary type, according to some embodiments of the invention. Embodiments of the invention comprise a kit for shaving machine 100 comprising a plurality of additional grids 119, each characterized by specified thickness 112B-F and specified pore sizes 114 and distances 115. Any of additional grids 119 may be mounted in shaving machine 100 to allow a user adjust bristle length and skin damage avoidance to the user's facial characteristics. Additional grids 119 may be mounted singly or group-wise, to allow the user reach exactly the preferred overall grid thickness that fits the user's needs. Additional grids 119 may have notches or protrusions 134 that secure additional grids 119 to each other and to a protrusion or a notch (respectively) 133 of basic grid 110, as exemplified Figure 3G. Sides and edges of additional grids 119 are also arranged to fit upon each other and upon basic grid 110.

[0025] Additional grids 119 may differ in their thicknesses 112B-112E and radii 122B-122E, allowing adjustment by the user to different skin characteristics and sensibilities, as well as for achieving different bristle length. For example, each additional grid 119 may have thicknesses 112B-112E between 0.05-0.08 mm and radii 122B-122E between 2.2 and 2.0 mm. Alternative basic grids 110 may have thicknesses between 0.15-0.4 mm, e.g. 0.12, 0.18, 0.24, 0.30, 0.42, 0.46, 0.47 and 0.48 mm.

[0026] The fitting of additional grid 119 to basic grid 110 may leave a very small space between them (e.g. a space denoted by REF 0.05mm in Figures 2F, 3G),that allows dismounting and releasing additional grid 119 from basic grid 110.

[0027] Figures 4A-4C are illustrations of traditional shaving machines according to the prior art.

[0028] Figures 5A and 5B are schematic illustrations of a shaving machine of the foil type, according to some embodiments of the invention. The foil shaver has razorblade 90 arranged to move back and forth below grid 110 with pores 120. Pores 120 may be round, rhomboid, or have any other form. The inventors have long experimented to find the optimal parameters of grid 110, and have found them to be: pore diameter 114 between 0.2 and 0.3 mm, and thickness 112 of grid 110 between 0.18 and 0.35 mm. Thickness 112 may be achieved either be replaceable grids 110 that may be provided separately or as a kit with grids 110 of varying thickness, or by a kit of additional grids 119, each with a specified thickness, allowing a user to reach exactly the proffered overall grid thickness that fits the user's needs. Additional grids 119 in variable number mountable singly or group-wise on a foil shaver may be constructed and supplied in similar manner of additional grids 119 as for the rotary shaver. Additional grids 119 may be mounted upon basic grid 110 on the internal side of basic grid 110 as illustrated in Figure 5B, or on its external side, utilizing the respective protrusion or notches 123 to stabilize additional grids 119 upon basic grid 110.

[0029] Embodiments of the invention comprise a kit for shaving machine 100 comprising a plurality of additional grids 119, each characterized by specified thickness 113. Any of grids 119 may be mounted to basic grid 110 from above or from below in shaving machine 100 to allow a user adjust bristle length and skin damage avoidance to the user's facial characteristics. Grids 119 have the same pore sizes 114 and distances 115 as basic grid 110. Basic grid 110 in the foil type may be thinner than 0.1.0 mm, alternative basic grid 110 may have thicknesses between 0.18-0.35 mm. Additional grids 119 may have thicknesses between 0.04 mm and 0.07 mm.

[0030] Basic grid 110 and or grids 119 may be adjusted to allow their mutual attachment by attachment means, for example basic grid 110 may have additional notches or protrusions 123, to fit corresponding protrusions or notches 124 (respectively) in grids 119. The attachment means on basic grid 110 are arranged to receive mountable additional grid 119 and allow cooperation of grid 119 with grid 110 to adjust bristle length and skin damage avoidance.

[0031] Figure 7 is a schematic flowchart illustration of a method 150, according to some embodiments of the invention. Method 1.50 comprises thickening a grid in a shaving machine (stage 155) to cut the hairs at a predefined distance from the skin thereby completely avoiding a risk of damaging the skin. Thickening 155 may be achieved by replacing a basic grid of the shaving machine (stage 160), or by mounting to a basic grid of the shaving machine an additional grid with predefined thickness (stage 165). Method 150 may further comprise collecting cut hairs by suction (stage 170). Cutting hair may be carried out by either a rotary or linear razorblade or by a laser. Advantageously, by using laser, the challenge of cutting hair with a grid of a thickness above the values that are currently in use is met more easily.

[0032] Figure 8 is a perspective view of a rotary shaving machine, according to some embodiments of the invention. Cap 800 incorporates a grid 810 having different types and sizes of pores 820A-820D in one operative assembly for the rotary shaving machine. Other grids having different thickness may be used for achieving different values for cutting the hair. As shown below cap 800 a rotary laser source 830 may replace standard cutting means so that laser beam 840 may be configured, by rotating either clockwise or counterclockwise, to cut the hair on the plane just below grid 820 at the desired and predefined height.

[0033] To summarize, Figures 1D and 1E illustrate principle (i) replacement of basic grid 110 by grid 110 of a different thickness. Figures 1G,1H,2F,3F,3G,5A and 5B illustrate principle (ii) adding one additional grid 119 above or below basic grid to allow the user to adjust the overall thickness. Figures 2A-2E and 3A-3E illustrate principle (iii) adding several additional grids 119 above or below basic grid 110, to achieve an over-all required thickness, wherein additional grids 119 are connectable to each other in different combination to achieve an exact required over-all thickness.

[0034] The described invention achieves a bristle length of between 0.12 and 0.48 mm. This is longer than possible by ordinary shaving machines (maximal bristle length possible 0.06-0.1 mm) and shorter than possible by using a conventional trimmer (minimal bristle length possible 0.5-0.8 mm). This length of bristles is exactly the range needed for users that require a shave without injuring their skin.

[0035] From a point of view of Jewish religious practices, an assurance of avoiding skin injury and damage is crucial for users to be able to use shaving machines.

[0036] Thicknesses 112 are determined according to medical indication. For example, according to the inventor's experimentation and experience, thickness 112 between 0.15 and 0.18 mm may be appropriate to prevent skin sensitivity reaction of users with a dark skin, thickness 112 between 0.18 and 0.21 mm may be appropriate to prevent skin sensitivity reaction of users with a light skin, thickness 112 between 0.21 and 0.23 mm may be appropriate to prevent skin sensitivity reaction at neck regions, thickness 112 between 0.23 and 0.25 mm may be appropriate to prevent hairs from penetrating the skin, thickness 112 between 0.26 and 0.29 mm may be appropriate to prevent recurrent hair growth, thickness 112 between 0.27 and 0.30 mm may be appropriate to prevent seborrhea, thickness 112 between 0.30 and 0.32 mm may be appropriate to prevent mycosis, thickness 112 between 0.32 and 0.38 mm may be appropriate to allow shaving according to Jewish religious practices, thickness 112 between 0.38 and 0.41 mm may be appropriate to prevent mild acne problems, thickness 112 between 0.41 and 0.44 mm may be appropriate to prevent severe acne problems, and thickness 112 between 0.44 and 0.48 mm may be appropriate to prevent severe recurring growth problems. Beyond these indications, thickness 112 between 0.32 and 0.44 mm may be appropriate to produce a fashionable bristled look.

[0037] The invention in its various embodiments is arranged to provide a user select bristle length by selecting thickness 112. The described kits, either of replaceable grids 110 or as additional grids 119, are arranged to provide any part of the range of thickness 112 between 0.12 and 0.48 mm.

[0038] Figure 9 illustrates shaving machine 100 according to embodiments of the present invention. Shaving machine 100 has a cutting element 90 such as a laser beam 92 generated by a laser source 91 rotatably mounted on an axis 94 connected to a rotary motor 93. Laser beam 92 is arranged to cut hairs 95 that enter through grid 110, and positioned below a grid 110 with pores 120. Grid 110 has a specified thickness 112 and pores 120 have specified pore sizes 114, specified distances 115 between pores 120 and specified geometric characteristics.

[0039] Rotary motor 93 and laser source 91 are powered by a battery 137 or an external power source 141 connected via socket 139 to shaving machine 100.

[0040] Shaving machine 100 may further comprise a hair collection unit 130 arranged to collect bits of cut hair 97 drawn in through a suction area 133 such as a small spout, connected via ducts 132 to hair collection unit 130, such as a small container. Hair collection unit 130 may also be powered by battery 137 or external power source 141.

[0041] In the above description, an embodiment is an example or implementation of the invention. The various appearances of "one embodiment", "an embodiment" or "some embodiments" do not necessarily all refer to the same embodiments.

[0042] Although various features of the invention may be described in the context of a single embodiment, the features may also be provided separately or in any suitable combination. Conversely, although the invention may be described herein in the context of separate embodiments for clarity, the invention may also be implemented in a single embodiment.

[0043] Furthermore, it is to be understood that the invention can be carried out or practiced in various ways and that the invention can be implemented in embodiments other than the ones outlined in the description above.

[0044] The invention is not limited to those diagrams or to the corresponding descriptions. For example, flow need not move through each illustrated box or state, or in exactly the same order as illustrated and described.

[0045] Meanings of technical and scientific terms used herein are to be commonly understood as by one of ordinary skill in the art to which the invention belongs, unless otherwise defined.

[0046] While the invention has been described with respect to a limited number of embodiments, these should not be construed as limitations on the scope of the appended claims.

Claims

1. A rotary type shaving machine (100) for providing a user selected bristle length, comprising:

a) a circular basic grid (110) having a center, a predefined thickness (112) and predefined pore sizes (114), distances between pores (115) and geometric characteristics (126);

b) a circular and circularly rotatable razorblade (90) having a center and positioned below said basic grid, for cutting hairs (95) that enter through said basic grid;

c) an additional circular grid (119) replaceably mountable to said basic grid, said additional grid having a predefined thickness (112A-E) and the same pore sizes, distance between pores and geometrical characteristics as said basic grid; and characterized in that said shaving machine further comprises:

d) two centering attachment elements (123, 124) provided with said basic grid and said additional grid, respectively, which, after attachment, are coaxial with a central axis of said basic grid, said additional grid and said razorblade, wherein said centering attachment element provided with said basic grid is a notch or a protrusion to fit a corresponding protrusion or notch in said additional grid; and

e) two peripheral attachment elements (133, 134) provided with said basic grid and said additional grid, respectively, for being secured to each other, wherein said peripheral attachment element provided with said basic grid is a notch or protrusion to fit a corresponding protrusion or notch in said additional grid,

wherein said two centering attachment elements and said two peripheral attachment elements allow for mutual attachment of said basic grid to said additional grid, in such a way to ensure congruency of pores in said additional grid to pores (120) in said basic grid, and
wherein the range of overall thickness of said basic grid and said additional grid is selected from the group consisting of 0.26-0.29mm, 0.27-0.30mm, 0.30-0.32mm, 0.32-0.38mm, 0.38-0.41 mm, 0.41-0.44mm, 0.44-0.48mm, and 0.32-0.44mm, such as to cut the hairs at a predefined user selected distance (116) from the skin (80), to completely avoid a risk of damaging the skin, for protecting the skin and for keeping religious practices.

2. The shaving machine of claim 1, wherein the grid pores have a pore diameter between 0.2 and 0.35 mm, and are interspaced by a distance (115) between 0.15 and 0.3 mm, and the basic grid (110) has a thickness (112) between 0.12 and 0.48 mm.

3. The shaving machine of claim 1, wherein the grid pores are elongated, parallel, interspaced by between 0.3 and 0.35 mm, and are between 0.3 and 0.35 mm wide, and the basic grid (110) has a thickness (112) between 0.12 and 0.48 mm.

4. The shaving machine of claim 1, wherein the peripheral attachment elements are arranged by sides and edges to fit upon each other.

5. The shaving machine of claim 1, further comprising a hair collection unit (130) for collecting bits of cut hair drawn in through a suction area (133).

6. The shaving machine of claim 1, wherein the additional circular grid (119) is mountable to the basic grid (110) from above or from below.

7. The shaving machine of claim 1, wherein the centering attachment element and the peripheral attachment element of a first additional grid allow for mutual attachment to the centering attachment element and the peripheral attachment element, respectively, of a second additional grid, in such a way to ensure congruency of pores in said first additional grid to pores in said second additional grid.

8. The shaving machine of claim 7, wherein the first and second additional grids are singly or groupwise mountable to the basic grid (110).

9. A kit, comprising a plurality of circular additional grids (119) replaceably mountable to a circular basic grid (110) of a rotary type shaving machine (100),
wherein each of said additional grids comprises:

a) a centering attachment element (124) which, after attachment with a corresponding attachment element (123) of said basic grid, is coaxial with a central axis of said basic grid, said additional grid and a circularly rotatable razorblade (90) positioned below said basic grid, wherein said centering attachment element is a notch or a protrusion to fit a corresponding protrusion or notch in said basic grid; and

b) a peripheral attachment element (134) which is attachable with a corresponding attachment element (133) of said basic grid, for mutual attachment with said basic grid or with an another additional grid in such a way to ensure congruency of pores in each of said attached additional grids to pores (120) in said basic grid, each of said additional grids having a predefined thickness (112A-E) and the same pore sizes, distance between pores and geometrical characteristics as said basic grid, wherein said peripheral attachment element is a notch or protrusion to fit a corresponding protrusion or notch in said basic grid,

wherein the range of overall thickness of said basic grid and said plurality of additional grids is selected from the group consisting of 0.26-0.29mm, 0.27-0.30mm, 0.30-0.32mm, 0.32-0.38mm, 0.38-0.41mm, 0.41-0.44mm, 0.44-0.48mm, and 0.32-0.44mm, such as to cut the hairs at a predefined user selected distance (116) from the skin (80), to completely avoid a risk of damaging the skin, for protecting the skin and for keeping religious practices.

10. The kit of claim 9, wherein each of the plurality of additional grids (119) is characterized by a predefined thickness or by geometric characteristics different from other additional grids.

11. The kit of claim 9, wherein each of the plurality of additional circular grids (119) is mountable to the basic grid (110) from above or from below.

Ansprüche

1. Rasierapparat (100) des Drehtyps zum Erzeugen einer vom Benutzer gewählten Stoppellänge, der Folgendes umfasst:

a) ein kreisförmiges Grundgitter (110) mit einem Zentrum, einer vordefinierten Dicke (112) und vordefinierten Porengrößen (114), Distanzen zwischen Poren (115) und geometrischen Eigenschaften (126);

b) eine kreisförmige und kreisförmig drehbare Rasierklinge (90) mit einem Zentrum, die unterhalb des genannten Grundgitters positioniert ist, zum Schneiden von Haaren (95), die durch das genannte Grundgitter eintreten;

c) ein kreisförmiges Zusatzgitter (119), das austauschbar an dem genannten Grundgitter montiert werden kann, wobei das genannte Zusatzgitter eine vordefinierte Dicke (112A-E) und dieselben Porengrößen, dieselbe Distanz zwischen Poren und dieselben geometrischen Eigenschaften hat wie das Grundgitter; und

dadurch gekennzeichnet, dass der genannte Rasierapparat ferner Folgendes umfasst:

d) zwei zentrierende Anbringelemente (123, 124), die jeweils mit dem genannten Grundgitter und dem genannten Zusatzgitter vorgesehen sind, die nach dem Anbringen mit einer zentralen Achse des genannten Grundgitters, dem genannten Zusatzgitter und der genannten Rasierklinge koaxial sind, wobei das mit dem genannten Grundgitter bereitgestellte zentrierende Zusatzelement eine Kerbe oder ein Vorsprung passend zu einem/r entsprechenden Vorsprung oder Kerbe in dem genannten Zusatzgitter ist; und

e) zwei periphere Anbringelemente (133, 134), die mit dem genannten Grundgitter bzw. dem genannten Zusatzgitter zum Befestigen aneinander bereitgestellt werden, wobei das mit dem genannten Grundgitter bereitgestellte genannte periphere Anbringelement eine Kerbe oder ein Vorsprung passend zu einem/r entsprechenden Vorsprung oder Kerbe in dem genannten Zusatzgitter ist,

wobei die genannten beiden zentrierenden Anbringelemente und die genannten peripheren Zusatzelemente ein gegenseitiges Anbringen des genannten Grundgitters an dem genannten Zusatzgitter auf eine solche Weise zulassen, dass Kongruenz von Poren in dem genannten Zusatzgitter mit Poren (120) in dem genannten Grundgitter gewährleistet wird, und
wobei der Gesamtdickenbereich des genannten Grundgitters und des genannten Zusatzgitters ausgewählt ist aus der Gruppe bestehend aus 0,26-0,29 mm, 0,27-0,30 mm, 0,30-0,32 mm, 0,32-0,38 mm, 0,38-0,41 mm, 0,41-0,44 mm, 0,44-0,48 mm und 0,32-0,44 mm, um die Haare in eine vordefinierten, vom Benutzer gewählten Distanz (116) von der Haut (80) zu schneiden, um jegliches Risiko einer Beschädigung der Haut zu vermeiden, zum Schützen der Haut und zum Einhalten religiöser Praktiken.

2. Rasierapparat nach Anspruch 1, wobei die Gitterporen einen Porendurchmesser zwischen 0,2 und 0,35 mm haben und durch eine Distanz (115) zwischen 0,15 und 0,3 mm voneinander beanstandet sind und das Grundgitter (110) eine Dicke (112) zwischen 0,1 und 0,48 mm hat.

3. Rasierapparat nach Anspruch 1, wobei die Gitterporen länglich, parallel, um 0,3-0,35 mm voneinander beanstandet und 0,3-0,35 mm breit sind und das Grundgitter (110) eine Dicke (112) zwischen 0,12 und 0,48 mm hat.

4. Rasierapparat nach Anspruch 1, wobei die peripheren Anbringelemente nach Seiten und Rändern angeordnet sind, so dass sie aufeinander passen.

5. Rasierapparat nach Anspruch 1, der ferner eine Haarauffangeinheit (130) zum Auffangen von Haarschnittabfällen umfasst, die durch einen Saugbereich (133) eingesaugt werden.

6. Rasierapparat nach Anspruch 1, wobei das kreisförmige Zusatzgitter (119) an dem Grundgitter (110) von oben oder von unten montiert werden kann.

7. Rasierapparat nach Anspruch 1, wobei das zentrierende Anbringelement und das periphere Anbringelement eines ersten Zusatzgitters ein gegenseitiges Anbringen an dem zentrierenden Anbringelement bzw. dem peripheren Anbringelemente eines zweiten Zusatzgitters auf eine solche Weise zulässt, dass Kongruenz von Poren in dem genannten ersten Zusatzgitter mit Poren in dem genannten zweiten Zusatzgitter gewährleistet wird.

8. Rasierapparat nach Anspruch 7, wobei das erste und das zweite Zusatzgitter einzeln oder gruppenweise an dem Grundgitter (110) montiert werden können.

9. Kit, der mehrere kreisförmige Zusatzgitter (119) umfasst, die austauschbar an einem kreisförmigen Grundgitter (110) eines Rasierapparats (100) des Drehtyps montiert werden können,
wobei jedes der genannten Zusatzgitter Folgendes umfasst:

a) ein zentrierendes Anbringelement (124), das nach dem Anbringen an einem entsprechenden Anbringelement (123) des genannten Grundgitters mit einer zentralen Achse des genannten Grundgitters koaxial ist, wobei das genannte Zusatzgitter und eine kreisförmig drehbare Rasierklinge (90) unterhalb des genannten Grundgitters positioniert sind, wobei das genannte zentrierende Anbringelement eine Kerbe oder ein Vorsprung passend zu einem/r entsprechenden Vorsprung oder Kerbe in dem genannten Grundgitter ist; und

b) ein peripheres Anbringelement (134), das an einem entsprechenden Anbringelement (133) des genannten Grundgitters angebracht werden kann, zum gegenseitigen Anbringen an dem genannten Grundgitter oder an einem anderen Zusatzgitter auf eine solche Weise, dass Kongruenz von Poren in jedem der genannten angebrachten Zusatzgitter mit Poren (120) in dem genannten Grundgitter gewährleistet wird, wobei jedes der genannten Zusatzgitter eine vordefinierte Dicke (112A-E) und dieselben Porengrößen, dieselbe Distanz zwischen Poren und dieselben geometrischen Eigenschaften hat wie das genannte Grundgitter, wobei das genannte periphere Anbringelement eine Kerbe oder ein Vorsprung passend zu einem/r entsprechenden Vorsprung oder Kerbe in dem genannten Grundgitter ist,

wobei der Gesamtdickenbereich des genannten Grundgitters und der genannten mehreren Zusatzgitter ausgewählt ist aus der Gruppe bestehend aus 0,26-0,29 mm, 0,27-0,30 mm, 0,30-0,32 mm, 0,32-0,38 mm, 0,38-0,41 mm, 0,41-0,44 mm, 0,44-0,48 mm und 0,32-0,44 mm, um die Haare in einer vordefinierten, vom Benutzer gewählten Distanz (116) von der Haut (80) zu schneiden, um jegliches Risiko einer Beschädigung der Haut zu vermeiden, zum Schützen der Haut und zum Einhalten religiöser Praktiken.

10. Kit nach Anspruch 9, wobei jedes der mehreren Zusatzgitter (119) durch eine vordefinierte Dicke oder durch geometrische Eigenschaften charakterisiert ist, die sich von anderen Zusatzgittern unterscheiden.

11. Kit nach Anspruch 9, wobei jedes der mehreren kreisförmigen Zusatzgitter (119) an dem Grundgitter (110) von oben oder von unten montiert werden kann.

Revendications

1. Rasoir du type rotatif (100) permettant une longueur de poil sélectionnée par l'utilisateur, comportant :

a) une grille de base circulaire (110) ayant un centre, une épaisseur prédéfinie (112) et des tailles de pores prédéfinies (114), des distances entre les pores (115) et des caractéristiques géométriques (126) ;

b) une lame de rasoir circulaire et rotative de manière circulaire (90) ayant un centre et positionnée en dessous de ladite grille de base, pour couper les poils (95) qui entrent au travers de ladite grille de base ;

c) une grille circulaire supplémentaire (119) en mesure d'être montée de manière remplaçable sur ladite grille de base, ladite grille supplémentaire ayant une épaisseur prédéfinie (112A-E) et les mêmes tailles de pores, distance entre les pores et caractéristiques géométriques par rapport à ladite grille de base ;

et caractérisé en ce que ledit rasoir comporte par ailleurs :

d) deux éléments de fixation de centrage (123, 124) mis en oeuvre avec ladite grille de base et ladite grille supplémentaire, respectivement, qui, après la fixation, sont coaxiaux par rapport à un axe central de ladite grille de base, ladite grille supplémentaire et ladite lame de rasoir, dans lequel ledit élément de fixation de centrage mis en oeuvre avec ladite grille de base est une entaille ou une partie saillante à des fins d'adaptation dans une partie saillante ou entaille correspondante dans ladite grille supplémentaire ; et

e) deux éléments de fixation périphériques (133, 134) mis en oeuvre avec ladite grille de base et ladite grille supplémentaire, respectivement, à des fins d'assujettissement l'un par rapport à l'autre, dans lequel ledit élément de fixation périphérique mis en oeuvre avec ladite grille de base est une entaille ou partie saillante à des fins d'adaptation dans une partie saillante ou entaille correspondante dans ladite grille supplémentaire,

dans lequel lesdits deux éléments de fixation de centrage et lesdits deux éléments de fixation périphériques permettent une fixation mutuelle de ladite grille de base par rapport à ladite grille supplémentaire, de telle manière à assurer la conformité des pores dans ladite grille supplémentaire par rapport aux pores (120) dans ladite grille de base, et
dans lequel la plage de l'épaisseur totale de ladite grille de base et de ladite grille supplémentaire est sélectionnée dans le groupe constitué par une plage allant de 0,26 à 0,29 mm, une plage allant de 0,27 à 0,30 mm, une plage allant de 0,30 à 0,32 mm, une plage allant de 0,32 à 0,38 mm, une plage allant de 0,38 à 0,41 mm, une plage allant de 0,41 à 0,44 mm, une plage allant de 0,44 à 0,48 mm, et une plage allant de 0,32 à 0,44 mm, de manière à couper les poils à une distance (116) prédéfinie sélectionnée par un utilisateur par rapport à la peau (80), pour éviter entièrement tout risque d'endommagement de la peau, pour protéger la peau et pour observer des pratiques religieuses.

2. Rasoir selon la revendication 1, dans lequel les pores des grilles ont un diamètre de pore compris entre 0,2 et 0,35 mm, et sont mutuellement espacés selon un distance (115) comprise entre 0,15 et 0,3 mm, et la grille de base (110) a une épaisseur (112) comprise entre 0,12 et 0,48 mm.

3. Rasoir selon la revendication 1, dans lequel les pores des grilles sont allongés, parallèles et mutuellement espacés selon une distance comprise entre 0,3 et 0,35 mm, et mesurent entre 0,3 et 0,35 mm de large, et la grille de base (110) a une épaisseur (112) comprise entre 0,12 et 0,48 mm.

4. Rasoir selon la revendication 1, dans lequel les éléments de fixation périphériques sont agencés par les côtés et les bords à des fins d'adaptation les uns sur les autres.

5. Rasoir selon la revendication 1, comportant par ailleurs une unité de collecte de poils (130) servant à collecter les morceaux de poils coupés attirés au travers d'une zone d'aspiration (133).

6. Rasoir selon la revendication 1, dans lequel la grille circulaire supplémentaire (119) est en mesure d'être montée sur la grille de base (110) par dessus ou par en dessous.

7. Rasoir selon la revendication 1, dans lequel l'élément de fixation de centrage et l'élément de fixation périphérique d'une première grille supplémentaire permettent une fixation mutuelle par rapport à l'élément de fixation de centrage et l'élément de fixation périphérique, respectivement, d'une deuxième grille supplémentaire, de tell manière à assurer la conformité des pores dans ladite première grille supplémentaire par rapport aux pores dans ladite deuxième grille supplémentaire.

8. Rasoir selon la revendication 7, dans lequel les première et deuxième grilles supplémentaires sont en mesure d'être montées seules ou groupées sur la grille de base (110).

9. Kit comportant une pluralité de grilles supplémentaires circulaires (119) en mesure d'être montées de manière remplaçable sur une grille de base circulaire (110) d'un rasoir du type rotatif (100),
dans lequel chacune desdites grilles supplémentaires comporte :

a) un élément de fixation de centrage (124) qui, après la fixation avec un élément de fixation correspondant (123) de ladite grille de base, est coaxial par rapport à un axe central de ladite grille de base, ladite grille supplémentaire et une lame de rasoir rotative de manière circulaire (90) positionnée en dessous de la dite grille de base, dans lequel ledit élément de fixation de centrage est une entaille ou une partie saillante à des fins d'adaptation dans une partie saillante ou entaille correspondante dans ladite grille de base ; et

b) un élément de fixation périphérique (134) qui est en mesure d'être fixé avec un élément de fixation correspondant (133) de ladite grille de base, à des fins de fixation mutuelle avec ladite grille de base ou avec une autre grille supplémentaire de telle manière à assurer la conformité des pores dans chacune desdites grilles supplémentaires fixées par rapport aux pores (120) dans ladite grille de base, chacune desdites grilles supplémentaires ayant une épaisseur prédéfinie (112A-E) et les mêmes tailles de pores, distance entre les pores et caractéristiques géométriques par rapport à ladite grille de base, dans lequel ledit élément de fixation périphérique est une entaille ou une partie saillante à des fins d'adaptation dans une partie saillante ou entaille correspondante dans ladite grille de base,

dans lequel la plage de l'épaisseur totale de ladite grille de base et de ladite pluralité de grilles supplémentaires est sélectionnée dans le groupe constitué par une plage allant de 0,26 à 0,29 mm, une plage allant de 0,27 à 0,30 mm, une plage allant de 0,30 à 0,32 mm, une plage allant de 0,32 à 0,38 mm, une plage allant de 0,38 à 0,41 mm, une plage allant de 0,41 à 0,44 mm, une plage allant de 0,44 à 0,48 mm, et une plage allant de 0,32 à 0,44 mm, de telle manière à couper les poils à une distance (116) prédéfinie sélectionnée par un utilisateur par rapport à la peau (80), pour éviter entièrement tout risque d'endommagement de la peau, pour protéger la peau et pour observer des pratiques religieuses.

10. Kit selon la revendication 9, dans lequel chacune de la pluralité de grilles supplémentaires (119) est caractérisée par une épaisseur prédéfinie ou par des caractéristiques géométriques différentes des autres grilles supplémentaires.

11. Kit selon la revendication 9, dans lequel chacune de la pluralité de grilles circulaires supplémentaires (119) est en mesure d'être montée sur la grille de base (110) par dessus ou par en dessous.

Drawing