Razor

Patent metadata

Field	Value
Publication number	US-9796101-B2
Application number	US-201314439066-A
Country	US
Kind code	B2
Filing date	Nov 5, 2013
Priority date	Nov 6, 2012
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A top portion extends from an upper end of a handle. The top portion is curved from the front to the back. A clearance is located between the back side of the razor head and the front of the top portion of the holder. The clearance between the back side of the razor head and the front of the top portion is changed by means of a pivoting mechanism such that, when the razor head is at the neutral position, the clearance at a position separated from the cutting edge is greater than the clearance at a position in the vicinity of the cutting edge. When the razor head is moved from the neutral position to a specified movement position, the clearance at the position separated from the cutting edge is less than the clearance at a position in the vicinity of the cutting edge.

First claim

The invention claimed is:

1. A razor comprising:
a holder including a handle and a top portion at an upper end of the handle; and
a razor head including a blade body attached to a front of the top portion of the holder, wherein:
the razor head has a front side on which a cutting edge of the blade body is exposed, and a back side opposite to the front side; and
the razor head is located to face the top portion with a clearance between the back side of the razor head and the front of the top portion,
wherein the razor further comprises:
a pivoting structure that moves the razor head from a neutral position toward the front of the top portion is provided in the top portion of the holder, the pivoting structure includes a support portion provided in the top portion of the holder, a supported portion provided in the razor head, and an elastic portion provided between the support portion and the supported portion; and
the razor head is capable of taking the neutral position, where the razor head holds as a result of being pushed by the elastic portion, and a movement position to which the razor head is moved from the neutral position against a pushing force of the elastic portion; and
at the neutral position of the razor head, the clearance between the back side of the razor head and the front of the top portion is set to increase upward from a vicinity of the cutting edge.

2. The razor according to claim 1 , wherein
the top portion extends upward from the upper end of the handle while being bent from the front of the top portion to a back of the top portion.

3. The razor according to claim 1 , wherein
the pivoting structure is configured such that:
the clearance between the back side of the razor head and the front of the top portion is changeable;
at the neutral position of the razor head, the clearance between the back side of the razor head and the front of the top portion increases upward from below in a vicinity of the cutting edge;
the razor head is movable from the neutral position to the movement position; and
at the movement position, the clearance decreases upward from below in a vicinity of the cutting edge.

4. The razor according to claim 1 , wherein the top portion of the holder is configured to expand from the upper end of the handle to left and right of the cutting edge of the blade body.

5. The razor according to claim 1 , wherein in the holder, the handle extends to be bent downward from a back of the handle to a front of the handle when viewed from a side of the handle in a middle portion between the upper end and a lower end of the handle.

6. The razor according to claim 5 , wherein a bending angle of the top portion with respect to the upper end when viewed from the side of the handle is larger than that in the middle portion of the handle.

7. The razor according to claim 5 , wherein
the top portion is curved to expand from a back of the top portion toward the front of the top portion when viewed from the side of the handle;
the handle is curved to expand from the front of the handle toward the back of the handle when viewed from the side of the handle; and
the entire holder is curved into an S shape when viewed from the side of the handle.

8. The razor according to claim 1 , wherein the elastic portion is an elastic plate, has an outer periphery supported by the support portion of the top portion, and supports the supported portion of the razor head at a position inside the outer periphery of the elastic plate.

9. The razor according to claim 1 , wherein
the support portion of the top portion includes an annular portion that is annularly provided;
a support hole is located between an inner periphery of the annular portion of the support portion and an outer periphery of the supported portion of the razor head;
the elastic portion has an annular portion annularly provided in the support hole;
the top portion is curved to expand from a back of the top portion to the front of the top portion; and
the annular portion of the elastic portion is curved along the top portion.

10. The razor according to claim 9 , wherein
at the neutral position of the razor head, the elastic portion is located in the support hole between the annular portion of the support portion and the supported portion of the razor head;
the razor head includes an attachment portion that incorporates the blade body;
the supported portion of the razor head includes a first coupling portion that holds the elastic portion between the supported portion and the support portion of the top portion, a second coupling portion extending from the attachment portion, and a joint portion that supports the first and second coupling portions; and
an end of the first coupling portion located on a side opposite to the attachment portion is located in the support hole at the neutral position of the razor head.

11. The razor according to claim 1 , wherein
the elastic portion includes a flexible portion; and
the flexible portion includes a plurality of sections having different deformation resistances that indicate resistances against deformation.

12. The razor according to claim 11 , wherein
the flexible portion of the elastic portion includes an upper section and a lower section located to face each other in a direction perpendicular to an extending direction of the cutting edge of the blade body; and
a deformation resistance of the lower section is set to be higher than that of the upper section.

13. The razor according to claim 11 , wherein the sections of the flexible portion in the elastic portion are arranged adjacent to each other.

14. The razor according to claim 13 , wherein the sections of the flexible portion in the elastic portion are annularly arranged on the outer periphery of the supported portion of the razor head.

15. The razor according to claim 11 , wherein
the flexible portion of the elastic portion is deformed with movement of the razor head from the neutral position to the movement position; and
a deformation resistance at the movement position of the flexible portion is set to be higher than that at the neutral position of the flexible portion.

16. The razor according to claim 1 , wherein
when the holder is placed on a placement surface with the razor head being located at the neutral position, an inclination angle between a front surface of the razor head and the placement surface is set to 20 degrees or more; and
the razor head is configured to abut against the top portion to stop at the movement position to which the razor head has been moved from the neutral position toward the front of the top portion.

17. The razor according to claim 16 , wherein the razor head is located apart from the placement surface when the holder is placed on the placement surface with the razor head being located at the neutral position.

18. The razor according to claim 16 , wherein the pivoting structure is configured such that the razor head is moved by 30 degrees or more from the neutral position toward the front of the top portion and abuts against the top portion to stop.

19. The razor according to claim 1 , wherein the elastic portion has an outer periphery supported by the support portion of the top portion.

20. The razor according to claim 19 , wherein the elastic portion supports the supported portion of the razor head at a position inside the outer periphery of the elastic portion.

21. The razor according to claim 20 , wherein the elastic portion includes an elastic plate.

Assignees

• Kai R&D Center Co Ltd
• Kai Cutlery Center Co

Inventors

• Haba Daisuke

Classifications

• B26B21/522

  Ergonomic details, e.g. shape, ribs or rubber parts · CPC title

• B26B21/4037

  Details or parts covering the blades, e.g. caps for storage; Attachments · CPC title

• B26B21/225

  the changeable unit being resiliently mounted on the handle · CPC title

• B26B21/521 Primary

  Connection details, e.g. connection to razor heads · CPC title