Attachment comb and hair cutting appliance

Patent metadata

Field	Value
Publication number	US-12145283-B2
Application number	US-202016916256-A
Country	US
Kind code	B2
Filing date	Jun 30, 2020
Priority date	Apr 18, 2014
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

A hair cutting appliance is configured to be moved through hair in a moving direction in order to cut hair. The hair cutting appliance includes a housing portion, a blade set having a skin-facing top surface, and a releasable attachment comb. The blade set is arranged pivotably with respect to the housing portion. The attachment comb includes a supporting frame, at least one spacing guard element configured to space the blade set from a working surface when in operation, a mounting portion configured to be attached to a housing portion of the hair cutting appliance, and an orientation determining portion configured to engage the blade set and to define a locking orientation of the blade set when mounted to the hair cutting appliance.

First claim

The invention claimed is:

1. A hair cutting appliance configured to be moved through hair in a moving direction to cut the hair, said hair cutting appliance comprising:
a housing;
a blade set configured to pivotably move during a shaving mode with respect to the housing and be in a locking orientation during a hair trimming mode; and
a releasable attachment comb configured to be coupled to the housing in the hair trimming mode and to fix the blade set in the locking orientation during the hair trimming mode, the releasable attachment comb comprising:
a supporting frame, and
a mount having a hook, the hook pivotably attached to the supporting frame and configured to be attached to the housing of the hair cutting appliance,
wherein the releasable attachment comb comprises an orientation determiner configured to engage the blade set and to define the locking orientation of the blade set and fix the blade set in the locking orientation in the hair trimming mode when the releasable attachment comb is mounted to the housing, and wherein the orientation determiner of the releasable attachment comb is configured to swivel the blade set against a swivel limit stop associated with the housing in response to attachment of the releasable attachment comb to the housing.

2. The hair cutting appliance of claim 1 , wherein the hair cutting appliance further comprises a swivel configured to couple the blade set to the housing of the hair cutting appliance, and wherein the orientation determiner of the releasable attachment comb is configured to block the swivel to attain the locking orientation during the hair trimming mode.

3. The hair cutting appliance of claim 1 , wherein the hook has a sliding surface configured to cooperate with a sliding ramp surface associated with a mounting contour at the housing, and wherein the sliding surface and the sliding ramp surface deflect the hook upon mounting the attachment comb such that a retaining surface of the hook engages an engagement surface associated with the mounting contour.

4. The hair cutting appliance of claim 1 ,
wherein the hook is a resilient snap-on hook,
wherein the resilient snap-on hook is configured to engage a mounting contour at the housing,
wherein the resilient snap-on hook biases against the mounting contour when mounted to the housing,
wherein the resilient snap-on hook is configured to apply an alignment force to the housing when mounted to the housing to urge the blade set into the locking orientation, and
wherein the alignment force urges the orientation determiner into engagement with the blade set to attain the locking orientation of the blade set in the hair trimming mode.

5. The hair cutting appliance of claim 1 , wherein the orientation determiner includes a guide configured to contact and guide the blade set for aligning the blade set with the releasable attachment comb in the mounted state, and wherein the guide is offset away from a first lateral side of lateral sides of the supporting frame leaving a gap between the guide and the first lateral side.

6. The hair cutting appliance of claim 1 , wherein the releasable attachment comb comprises a handling tab, and wherein the handling tab is configured to disengage the hook from the housing in response to pushing the handling tab in a disengagement direction, the disengagement direction being parallel to the supporting frame.

7. The hair cutting appliance of claim 1 , wherein the releasable attachment comb comprises at least one spacing guard, the at least one spacing guard configured to space the blade set from a working surface when in operation, and wherein the at least one spacing guard of the releasable attachment comb is located at a first end of the supporting frame of the releasable attachment comb and the hook is located at a second end of the supporting frame opposite the first end.

8. The hair cutting appliance of claim 1 , wherein the hook is rotatably movable between an engagement position for engaging the housing of the hair cutting appliance and a disengagement position for disengaging from the housing, and wherein the hook extends away from the supporting frame in both the engagement position and the disengagement position.

9. A hair cutting appliance configured to be moved through hair in a moving direction to cut the hair, said hair cutting appliance comprising:
a housing;
a blade set configured to pivotably move during a shaving mode with respect to the housing; and
a releasable attachment comb configured to be releasably coupled to the housing in a hair trimming mode and configured to fix the blade set in a locking orientation during the hair trimming mode when coupled to the housing to prevent pivotal movement of the blade set in both clockwise and counter-clockwise directions,
wherein the hair cutting appliance is configured for the blade set to be released from the locking orientation in response to removal of the releasable attachment comb from the housing,
wherein the releasable attachment comb includes a supporting frame and an orientation determiner, the orientation determiner being configured to engage the blade set and to define the locking orientation of the blade set and fix the blade set in the locking orientation in the hair trimming mode when the releasable attachment comb is in a mounted state, where the releasable attachment comb is mounted to the housing in the mounted state, and
wherein the orientation determiner of the releasable attachment comb is configured to swivel the blade set against a blade set orientation biasing force applied by a biaser associated with the housing in response to attachment of the releasable attachment comb to the housing.

10. The hair cutting appliance of claim 9 , wherein the releasable attachment comb comprises:
a mount having a hook, and
a mounting pivot, the hook being rotatably attached to the supporting frame by the mounting pivot, and the hook being configured to be attached to the housing of the hair cutting appliance.

11. The hair cutting appliance of claim 9 , wherein the hair cutting appliance comprises a swivel configured to couple the blade set to the housing of the hair cutting appliance, and wherein the orientation determiner of the releasable attachment comb is configured to block the swivel to attain the locking orientation during the hair trimming mode.

12. The hair cutting appliance of claim 9 , wherein the orientation determiner includes a receiving seat that contacts a top surface of the blade set when the releasable attachment comb is in the mounted state, and wherein a length of the receiving seat exceeds at least half a length of the blade set.

13. A hair cutting appliance, comprising:
a housing;
a blade set configured to pivotably move during a shaving mode with respect to the housing for shaving hair and to be in a locking orientation during a hair trimming mode for trimming hair; and
a releasable attachment comb comprising:
teeth;
a supporting frame;
a hook;
a handling tab; and
an orientation determiner,

wherein the orientation determiner is configured to engage the blade set and to define the locking orientation of the blade set and fix the blade set in the locking orientation in the hair trimming mode to enable trimming of the hair by the blade set when the releasable attachment comb is in a mounted state, and to swivel the blade set against a swivel limit stop in response to the releasable attachment comb being mounted to the housing in the mounted state, and
wherein the handling tab is configured to rotate the hook to a disengagement position to disengage the hook from the housing in response to pushing the handling tab in a d

Assignees

• Koninklijke Philips Nv

Inventors

• Iaccarino Luca
• Roumen Britt
• Stapelbroek Martinus Bernardus
• Bennik Jan
• Pragt John
• Ripandelli Remy Amos Abraham
• Van Der Scheer Robbert Freerk Johan
• Aitink Albert Jan
• Van Straaten Roland
• Hoexum Everhardus Johannes
• Van Dalen Jan

Classifications

• A45D24/36

  Combs, stencils, or guides, specially adapted for hair trimming devices · CPC title

• 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

• B26B19/063 Primary

  Movable or adjustable cutting head · CPC title