Hair clipper comprising a comb

Patent metadata

Field	Value
Publication number	US-11420349-B2
Application number	US-201816652696-A
Country	US
Kind code	B2
Filing date	Oct 3, 2018
Priority date	Oct 4, 2017
Publication date	Aug 23, 2022
Grant date	Aug 23, 2022

Abstract

This application concerns a comb (200) for a hair clipper comprising a comb portion (208) comprising a plurality of comb teeth (216) having slots formed there between for guiding hairs to a cutting element of the hair clipper. The comb portion may be configured such that, when the comb is attached to the hair clipper, a substantially wedge-shaped hair debris-receiving space is formed between the housing and the comb portion into which hair debris can flow. The comb teeth may comprise an extension portion (230) which extends generally forwardly away from the respective comb tooth in a cutting movement direction such that a connecting bar is spaced apart from a housing of the hair clipper by a greater distance than the plurality of comb teeth.

First claim

The invention claimed is:

1. A hair clipper apparatus comprising:
a hair clipper comprising an elongate grippable housing having a cutting head on which a cutting element is arranged; and
a comb comprising length adjustment features configured to movably and detachably couple to the cutting head, the comb comprising:
a comb portion configured to be arranged forward of the cutting element of the hair clipper in a cutting movement direction of the hair clipper, the comb portion comprising a plurality of comb teeth having slots formed there between for guiding hairs to be cut to the cutting element,

a connecting bar that connects two or more of the plurality of comb teeth together, such that the connecting bar is spaced apart from the housing of the hair clipper by a distance greater than a distance between the hair clipper and the plurality of comb teeth,
wherein rear edges of the comb teeth, which face the housing of the hair clipper, define a rear comb surface proximate the cutting element, and wherein a substantially wedge-shaped hair debris-receiving space defining a spacing angle formed between the rear comb surface and a front surface of the housing into which hair debris can flow,
wherein the wedge-shaped hair debris-receiving space increases with distance away from the cutting element, as defined by the spacing angle,
wherein the comb is an adjustable comb for adjusting a cutting length of the hair clipper, and wherein a length of the rear comb surface is equal to or greater than a total length adjustment range defined by the length adjustment features, and
wherein the length adjustment features are configured to guide the comb in a length adjustment direction within the total length adjustment range, and wherein the length adjustment direction is substantially parallel to the rear comb surface.

2. The hair clipper as claimed in claim 1 , wherein the spacing angle (θ 1 ) is around 10 to 30 degrees.

3. The hair clipper as claimed in claim 2 , wherein the rear edges of the comb teeth further define a second rear comb surface ultimate the cutting element, such that a second spacing angle is formed between the second rear comb surface and the housing, wherein the second spacing angle is around 30 to 50 degrees.

4. The hair clipper as claimed in claim 3 , wherein the second rear comb surface is curved across a width of the comb.

5. The hair clipper as claimed in claim 1 , wherein the rear edges of the comb teeth further define a second rear comb surface distal the cutting element, such that a second spacing angle is formed between the second rear comb surface and the housing, wherein the second spacing angle is equal to the spacing angle.

6. The hair clipper as claimed in claim 5 , wherein the second rear comb surface is planar and extending linearly from the first rear comb surface or angled relative to the rear comb surface.

7. The hair clipper as claimed in claim 1 , wherein the rear edges of the comb teeth further define a second rear comb surface distal the cutting element, such that a second spacing angle is formed between the second rear comb surface and the housing, wherein the second spacing angle is larger than the first spacing angle.

8. The hair clipper as claimed in claim 1 , wherein a minimum portion of the wedge-shaped hair debris-receiving space is 3.5 mm.

9. The hair clipper as claimed in claim 1 , wherein the substantially wedge-shaped hair debris-receiving space is maintained along the total length adjustment range provided by the adjustable comb.

10. The hair clipper as claimed in claim 1 , wherein the adjustment features of the comb are defined in part by one or more adjustment rails that couple to the cutting head.

11. The hair clipper as claimed in claim 1 , wherein the rear comb surface is planar.

12. The hair clipper as claimed in claim 1 ,
wherein the two or more of the comb teeth comprise an extension portion which extends generally forward away from the housing in the cutting movement direction; and
wherein the connecting bar connects the two or more comb teeth together at the extension portion.

13. The hair clipper as claimed in claim 12 , wherein the extension portions are is substantially perpendicular to the front surface of the housing of the hair clipper.

14. The hair clipper as claimed in claim 12 , wherein the extension portion extends forwardly from a rear face of the comb teeth by a distance greater than the depth of the comb teeth.

15. The hair clipper as claimed in claim 12 , wherein the extension portion is a portion of the comb tooth having an increased depth in the cutting movement direction compared to a remainder of the comb teeth.

16. A hair clipper apparatus comprising:
a hair clipper having a housing and a cutting element, and
a comb, the comb comprising:
a comb portion configured to be arranged forward of the cutting element of the hair clipper in a cutting movement direction of the hair clipper, the comb portion comprising a plurality of comb teeth having slots formed there between for guiding hairs to be cut to the cutting element,

wherein two or more of the comb teeth comprise an extension portion which extends generally forwardly away from the respective comb tooth in the cutting movement direction;
wherein a connecting bar connects the two or more comb teeth together within their respective extension portions, such that, the connecting bar is spaced apart from the housing of the hair clipper by a distance greater than a distance between the hair clipper and the plurality of comb teeth; and
wherein the extension portion is a portion of the comb tooth having an increased depth in the cutting movement direction compared to a remainder of the comb tooth.

17. A hair clipper as claimed in claim 16 , wherein the extension portion is a portion of the respective comb tooth which extends at an angle to a main part of the respective comb tooth.

18. A hair clipper as claimed in claim 16 , wherein the extension portion of the comb teeth is configured to be ultimate the cutting element of the hair clipper in use.

19. A hair clipper as claimed in claim 16 , wherein the connecting bar is spaced apart from the rear edges of the comb teeth by a greater distance than a depth of the comb teeth such that the slots formed between the comb teeth are open at ends of the slots ultimate from the cutting element.

Assignees

• Koninklijke Philips Nv

Inventors

• Iaccarino Luca

Classifications

• B26B19/20 Primary

  with provision for shearing hair of preselected or variable length · CPC title

• B26B19/06

  involving co-operating cutting elements both of which have shearing teeth · CPC title

• B26B19/3826 Primary

  Separate accessories · CPC title