HAIRBRUSH
20240423351 ยท 2024-12-26
Assignee
Inventors
- Richard DUNN (North Yorkshire, GB)
- Andrew IVES (East Sussex, GB)
- Chris LAWRENCE (Northumberland, GB)
- Ben TOWELL (Northumberland, GB)
Cpc classification
International classification
Abstract
A hairbrush comprising a body and a handle, wherein the body comprises a front portion and a back portion, the front portion comprising a plurality of bristles; wherein the handle is slidably engaged with respect to the body such that the handle is movable between an extended position, in which the handle is graspable by a user, and a retracted position, in which the handle is substantially retracted into the body, wherein the body comprises at least one guide rail that cooperates with an end of the handle so as to guide the handle between the extended and retracted positions.
Claims
1. A hairbrush comprising a body and a handle, wherein the body comprises a front portion and a back portion, the front portion comprising a plurality of bristles; wherein the handle is slidably engaged with respect to the body such that the handle is movable between an extended position, in which the handle is graspable by a user, and a retracted position, in which the handle is substantially retracted into the body, wherein the body comprises at least one guide rail that cooperates with an end of the handle so as to guide the handle between the extended and retracted positions, wherein at least one of the guide rails is resiliently flexible, and wherein the handle and the at least one resiliently flexible guide rail interact to provide a snap fit as the handle moves into the extended position.
2. The hairbrush of claim 1, wherein the at least one resiliently flexible guide rail or at least one further resiliently flexible guide rail interacts with the handle to provide a snap fit as the handle moves into the retracted position.
3. The hairbrush of claim 2, wherein the resiliently flexible guide rails are elongate cantilevers with a fixed proximal end and a free distal end, the free distal end interacting with the handle to provide the snap fit.
4. The hairbrush of claim 3, wherein the body comprises a first pair of guide rails.
5. The hairbrush of claim 4, wherein the first pair of guide rails are provided either side of the end of the handle and at least one of the guide rails of the first pair of guide rails resiliently flexes in a lateral direction with respect to the handle to provide the snap fit as handle moves into the extended position.
6. The hairbrush of claim 4, wherein the body comprises a second pair of guide rails provided either side of the end of the handle, wherein at least one of the guide rails of the second pair of guide rails resiliently flexes in a lateral direction with respect to the handle to provide a snap fit as the handle moves into the retracted position.
7. The hairbrush of claim 6, wherein the second pair of guide rails are longitudinally spaced apart from the first pair of guide rails.
8. The hairbrush of claim 6, wherein the free distal ends of the at least one resiliently flexible guide rail of the first pair of guide rails and the at least one resiliently flexible guide rail of the second pair of guide rails are at opposite ends of the body.
9. The hairbrush of claim 1, wherein the handle comprises a ramp portion at the end of handle, the ramp portion being arranged to interact with at least one resiliently flexible guide rail to cause the resiliently flexible guide rail to flex.
10. The hairbrush of claim 1, wherein the or each of the resiliently flexible guide rails comprises one of a protrusion or recess that is configured to cooperate with a corresponding recess or protrusion on the handle, the protrusion and recess being configured to engage one another when the handle is in the extended and/or retracted positions.
11. The hairbrush of claim 1, wherein the body comprises at least one rigid guide rail configured to guide the handle between the extended and retracted positions.
12. The hairbrush of claim 11, wherein the handle comprises at least one slot, wherein the slot and rigid guide rail cooperate with one another.
13. The hairbrush of claim 12, wherein the body comprises a pair of rigid guide rails and the handle comprises a pair of corresponding slots, and wherein one of the rigid guide rails and its corresponding slot have a substantially rectangular cross-section and the other rigid guide rail and its corresponding slot have a substantially triangular cross-section.
14. The hairbrush of claim 1, wherein the end of the handle comprises a tapered portion and the body comprises a correspondingly tapered region that receives the tapered portion of the handle when the handle is in the extended position.
15. The hairbrush of claim 1, wherein the body comprises a bridge part that extends over the handle, the bridge part holding the handle captive relative to the body.
16. The hairbrush of claim 1, wherein at least one of the front portion and back portion is interchangeable with a respective another front portion and another back portion.
17. The hairbrush of claim 1, wherein the body defines a cavity and the body comprises an outer wall extending around the cavity.
18. The hairbrush of claim 17, wherein the outer wall comprises an opening for the handle to pass through.
19. The hairbrush of claim 17, wherein at least one of the guide rails extends across at least a portion of the cavity.
20. The hairbrush of claim 1, wherein the hairbrush further comprises a removable cover portion, the cover portion being configured to protect the bristles.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0040] Exemplary embodiments will now be described, by way of example only, with reference to the following drawings, in which:
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[0055]
DETAILED DESCRIPTION OF EMBODIMENTS
[0056] With reference to
[0057] With reference to
[0058] The chassis portion 40, back portion 50 and front portion 60 may together define a cavity 70 that receives at least a substantial portion of the handle 30 when retracted. The chassis portion 40 may comprise an outer (e.g. perimeter) wall 41 extending around the cavity 70. The back portion 50 and front portion 60 may be coupled to the chassis portion 40, in particular the outer wall 41 of the chassis portion. For example, the back portion 50 may comprise resilient retaining hooks 52 that engage corresponding abutments 42 in the outer wall 41 of the chassis portion 40. Similarly, the front portion 60 may comprise resilient retaining hooks 62 that engage corresponding abutments 42 in the outer wall 41 of the chassis portion 40. The resilient retaining hooks 52, 62 may provide a snap-fit with the chassis portion 40.
[0059] As shown, the back portion 50 and front portion 60 are separate from the chassis portion 40. The front portion 60 and back portion 50 may be coupled to the chassis portion 40 during assembly of the hairbrush 10 and fixed thereto, e.g. by virtue of the resilient retaining hooks 52, 62. A range of different back portions 50 and/or front portions 60 may be provided and different ones of the back portions 50 and/or front portions 60 may be coupled to the chassis portion 40, e.g. during manufacture or even by the end user. However, it is also contemplated that the back portion 50 and/or front portion 60 may be integral with the chassis portion 40.
[0060] The body 20 may comprise at least one guide rail 80 that cooperates with a section or first end 30a of the handle 30 (e.g. a proximal end of the handle 30 relative to the body 20). The guide rail 80 is configured to guide the handle 30 as it slides between the extended and retracted positions. The guide rail(s) 80 may be straight such that the handle 30 may slide linearly. However, it is also contemplated that the guide rail(s) 80 may be curved such that the handle 30 may slide in an arc that may for example follow a contour of the body 20.
[0061] As depicted in
[0062] As shown in
[0063] As best depicted in
[0064] Referring to
[0065] The elongate element 90 and elongate slot 33 may have corresponding cross-sections that resist relative rotation of the chassis portion 40 and handle 30. For example, the elongate element 90 and elongate slot 33 may both have cross-shaped cross-sections.
[0066] As depicted in
[0067] Furthermore, the guide rails 80a, 80b may be resiliently flexible in a lateral direction of the guide rails (e.g. perpendicular to the longitudinal axis of the guide rail and away from the guide rail). The interaction between the handle first end 30a and the ramp portions 81a, 81b may cause the guide rails 80a, 80b to resiliently flex in the lateral direction. The guide rails 80a, 80b may be sufficiently slender to permit such lateral flex. The guide rails 80a, 80b may be made from a plastics material that facilitates such flex. The chassis portion 40 may be made from the same plastics material (for example as the chassis portion and guide rails may be unitary). Other portions of the hairbrush 10 may be made from the same plastics material.
[0068] As is best shown in
[0069] Referring now to
[0070] As is shown in
[0071] Referring still to
[0072] The protrusions 37a, 37b and recesses 57, 67 may face one another in a direction perpendicular to both the longitudinal direction of the guide rails 80a, 80b and the lateral direction (e.g. in a direction approximately parallel to the bristles 61). The protrusions 37a, 37b and recesses 57, 67 may also be spaced apart from a longitudinal axis of the handle 30, e.g. by being provided on the projections 34a-d that extend laterally from the handle 30. As a result, a torsional force provided by the protrusions 37a, 37b and recesses 57, 67 is maximised, thereby further limiting relative rotational movement of the handle 30 and body 20. Side-to-side movement of a second (distal) end 30b of the handle 30 is also better prevented.
[0073] Additionally or alternatively, protrusions or recesses may be provided in the slots 35a, 35b and corresponding recesses or protrusions may be provided on the guide rails 80a, 80b. Likewise, such recesses and the protrusions may be configured to cooperate when the handle 30 is in the extended position.
[0074] The handle 30 and body 20 may interact to provide a snap fit as the handle 30 moves into the extended position. The snap-fit may be provided by virtue of the resilient guide rails 80a, 80b and/or the interaction between the cooperating protrusions 37a, 37b and recesses 57, 67. The locking nature of the snap-fit may help provide a more rigid handle 30 when the handle is in the extended position.
[0075] With reference to
[0076] With reference to
[0077] With reference to
[0078] The chassis portion 240 may comprise at least one pair of resiliently flexible guide rails 280a, 280b; 280c, 280d that cooperates with a section or first end 230a of the handle 230 (e.g. a proximal end of the handle 230 relative to the body 220). The resiliently flexible guide rails 280a-d are configured to guide the handle 230 as it slides between the extended and retracted positions.
[0079] Referring still to
[0080] The guide rails 280a-d may be elongate, e.g. with a longitudinal axis extending in a direction of travel of the handle 230. The guide rails 280a, 280b may be substantially parallel to each other. Further, the guide rails 280c, 280d may be substantially parallel to each other. The first guide rail pair 280a, 280b may extend across a first end of a cavity 270 defined by the body 220. The second guide rail pair 280c, 280d may extend across a second end of the cavity 270.
[0081] The resiliently flexible guide rails 280a-d may be elongate cantilevers each with a fixed proximal end 282a-d and a free distal end 284a-d. The fixed ends 282a-d may be fixed to the body 220. The free end 284a-d may flex relative to the fixed end 282a-d. The free end 284a-d may flex in a lateral direction with respect to the handle 230. The guide rails 280a-d may be sufficiently slender to permit such lateral flex. The guide rails 280a-d may be made from a plastics material that facilitates such flex. The free ends 284a-b of the first pair of guide rails 280a-b may be provided at an opposite end of the body 220 to the free ends 284c-d of the second pair of guide rails 280c-d. The fixed ends 284a-b of the first pair of guide rails 280a-b may be arranged adjacent to the fixed ends 284c-d of the second pair of guide rails 280c-d.
[0082] In the example shown, the free ends 284a-d of guide rails 280a-d comprise a protrusion 281a-d that is configured to interact with a corresponding recess 238a, 238b at the end of the handle 230a. The interaction between the recesses 238a, 238b at the end of the handle 230a and the protrusions 281a-b of the first pair of guide rails 280a-b provides a snap-fit interaction as the handle 230 moves into the extended position. The interaction between the recesses 238a, 238b at the end of the handle 230a and the protrusions 281c-d of the second pair of guide rails 280c-d provides a snap-fit interaction as the handle 230 moves into the retracted position. In an alternative arrangement, the free distal end of the resiliently flexible guide rails may comprise a recess; and the end of the handle 230a may comprise a corresponding protrusion. In other examples, further combinations of recesses and protrusions are possible.
[0083] As shown in
[0084] With reference to
[0085] A pair of rigid guide rails 290a, 290b and corresponding elongate slots 231a, 231b may be provided. A first rigid guide rail 290a may be provided on the bridge part 245. A second rigid guid rail 290b may be provided on the back portion 250. As shown in
[0086] The first rigid guide rail 290a and corresponding slot 231a may have a substantially rectangular cross-section. The second rigid guide rail 290b and corresponding slot 231b may have a substantially triangular cross-section. In other examples (not shown), the rigid guide rails 290a, 290b may both have rectangular or triangular cross-sections or any other cross-sectional shape. On the one hand, the use of a substantially triangular cross-section may result in a smaller surface contact area between the rigid guide rail 290b and inner walls of the handle slot 232b than a substantially rectangular cross-section; resulting in a comparatively lower frictional force between the rigid guide rail and inner walls of the handle slot. On the other hand, the use of a substantially rectangular cross-section may improve the transfer of lateral force between the handle 230 and rigid guide rail 290a, which may improve the transfer of torsional forces between the handle 230 and body 220. This may be especially useful when attempting to disentangle particularly knotted hair for example. The use of both a substantially triangular cross-section and substantially rectangular cross-section, as shown in
[0087] As best depicted by
[0088] The tapered portion 232 (e.g. the widest end of the tapered portion) of the handle may interact with the at least one resiliently flexible guide rail 280a-d to cause the resiliently flexible guide rail to flex. For example, as the handle 230 is being moved to the extended position shown in
[0089] With reference to
[0090] The following numbered statements form part of the present disclosure:
[0091] A1. A hairbrush comprising a body and a handle, [0092] wherein the body comprises a front portion and a back portion, the front portion comprising a plurality of bristles; [0093] wherein the handle is slidably engaged with respect to the body such that the handle is movable between an extended position, in which the handle is graspable by a user, and a retracted position, in which the handle is substantially retracted into the body, [0094] wherein the body comprises at least one guide rail that cooperates with an end of the handle so as to guide the handle between the extended and retracted positions, [0095] wherein at least one of the front portion and back portion comprises at least one tab and the end of the handle comprises a shoulder, wherein the tab and shoulder interact to prevent the handle from being removed from the body when the hairbrush is assembled.
[0096] A2. The hairbrush of statement A1, wherein the body defines a cavity and the at least one guide rail extends across the cavity.
[0097] A3. The hairbrush of statement A1 or A2, wherein at least one of the guide rails is resiliently flexible.
[0098] A4. The hairbrush of any of statements A1 to A3, wherein the body comprises a pair of guide rails.
[0099] A5. The hairbrush of statement A4, wherein the guide rails are provided either side of the end of the handle and at least one of the guide rails resiliently flexes in a lateral direction away from the end of the handle.
[0100] A6. The hairbrush of any of statements A1 to A5, wherein at least one of the guide rails comprises a ramp portion, the ramp portion being arranged such that, as the handle moves into the extended position, an interaction between the end of the handle and the ramp portion results in an interference fit between the end of the handle and the guide rail.
[0101] A7. The hairbrush of statement A6, wherein the interaction between the end of the handle and the ramp portion causes the at least one guide rail to resiliently flex.
[0102] A8. The hairbrush of any of statements A1 to A7, wherein one of the end of the handle and the at least one tab comprises a recess and the other of the end of the handle and the at least one tab comprises a protrusion, the recess and the protrusion being configured to cooperate when the handle is in the extended position.
[0103] A9. The hairbrush of any of statements A1 to A8, wherein the end of the handle comprises a projection and the projection is sized to fit in a gap between the tab and the guide rail.
[0104] A10. The hairbrush of any of statements A1 to A9, wherein the body comprises an elongate element that extends into an elongate slot of the handle.
[0105] All. The hairbrush of statement A10, wherein the elongate element and elongate slot have cross-shaped cross-sections.
[0106] A12. The hairbrush of statement A10 or A11, wherein the body comprises a pair of guide rails and wherein the elongate element is disposed between the guide rails.
[0107] A13. The hairbrush of any of statements A1 to A12, wherein the handle and body interact to provide a snap fit as the handle moves into the extended position.
[0108] A14. The hairbrush of any of statements A1 to A13, wherein at least one of the front portion and back portion is interchangeable with a respective another front portion and another back portion.
[0109] A15. The hairbrush of any of statements A1 to A14, wherein the body defines a cavity and the body comprises an outer wall extending around the cavity.
[0110] A16. The hairbrush of statement A15, wherein the outer wall comprises an opening for the handle to pass through.
[0111] A17. The hairbrush of statement A16, wherein the body comprises a pair of guide rails and the guide rails connect to the outer wall either side of the opening.
[0112] A18. The hairbrush of any of statements A16 to A17, wherein the outer wall has a region of reduced thickness such that the outer wall is able to flex about the region of reduced thickness.
[0113] A19. The hairbrush of statement A18, wherein the region of reduced thickness is adjacent to the opening.
[0114] A20. The hairbrush of statement A18 or A19 when dependent on claim 6, wherein the region of reduced thickness is longitudinally spaced apart from the ramp portion.
[0115] A21. The hairbrush of any of statements A1 to A20, wherein the hairbrush further comprises a removable cover portion, the cover portion being configured to protect the bristles.
[0116] Variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the principles and techniques described herein, from a study of the drawings, the disclosure and the appended claims. In the claims, the word comprising does not exclude other elements or steps, and the indefinite article a or an does not exclude a plurality. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.