Pivoting razor

Patent metadata

Field	Value
Publication number	US-9498892-B2
Application number	US-201214116172-A
Country	US
Kind code	B2
Filing date	May 15, 2012
Priority date	May 18, 2011
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

An elastic plate is located between the support portion at the head portion of the holder and the supported portion of the razor head. The outer circumference of the annular elastic portion of the elastic plate is supported by the inner circumference of the annular portion of the support portion. The supported portion of the razor head is inserted into the inner circumference of the annular elastic portion of the elastic plate. As a result of the support structure to support the razor head to be movable from a neutral position against the elastic force of the elastic plate, the razor head can be moved during use from the neutral position to positions in three dimensions against the elastic force of the elastic plate.

First claim

The invention claimed is:

1. A pivoting razor comprising:
a holder having a head portion;
a razor head having a blade body;
a support portion provided in the head portion of the holder;
a supported portion provided in the razor head; and
an elastic portion that is arranged between the support portion and the supported portion, wherein
the razor head is arranged to be movable between a neutral position, in which the razor head is retained in a static state by the elastic portion, and a movement position, which is separated from the neutral position,
the razor head moves from the neutral position to the movement position against an urging force of the elastic portion, and the razor head returns to the neutral position from the movement position by means of an urging force of the elastic portion, and
the elastic portion has a plurality of bending-allowing portions that have different deformation resistance degrees, which indicate a degree of difficulty of deformation.

2. The pivoting razor according to claim 1 , wherein the bending-allowing portions of the elastic portion are arranged adjacent to each other.

3. The pivoting razor according to claim 2 , wherein the bending-allowing portions of the elastic portion are arranged to form an annular shape around the supported portion of the razor head.

4. The pivoting razor according to claim 1 , wherein
the bending-allowing portions of the elastic portion change shape as the razor head moves from the neutral position to a movement position, and
the deformation resistance degree of the bending-allowing portions at the movement position is higher than the deformation resistance degree of the bending-allowing portions at the neutral position.

5. A pivoting razor comprising:
a holder having a head portion;
a razor head having a blade body;
a support portion that is provided in the head portion of the holder and that has an annular portion that annularly extends to define a support hole on an inner side thereof;
a supported portion that is provided in the razor head, that has a tube portion, and that has an outer circumference; and
an elastic portion that is arranged between the support portion and the supported portion, that includes an annular elastic portion, which is located in the support hole and between an inner circumference of the annular portion of the support portion and the outer circumference of the supported portion, the annular elastic portion extending along the inner circumference of the annular portion and the outer circumference of the supported portion, and
a bending-allowing portion that is formed in the annular elastic portion, and that has
a ridge portion that continuously extends along the circumference of the tube portion and protrudes along an axis of the tube portion, and
a groove portion that is formed on the back of the ridge portion, wherein

the razor head is arranged to be movable between a neutral position, in which the razor head is retained in a static state by the elastic portion, and a movement position, which is separated from the neutral position, and
the razor head moves from the neutral position to the movement position against an urging force of the elastic portion, and the razor head returns to the neutral position from the movement position by means of an urging force of the elastic portion.

6. The pivoting razor according to claim 5 , wherein the elastic portion has an outer circumferential portion that is supported by the support portion of the head portion.

7. The pivoting razor according to claim 6 , wherein the elastic portion supports the supported portion of the razor head at a position that is inward of the outer circumferential portion of the elastic portion.

8. The pivoting razor according to claim 7 , wherein the elastic portion is an elastic plate.

9. The pivoting razor according to claim 8 , wherein the supported portion of the razor head is supported by at least one of two side faces in a thickness direction of the elastic plate.

10. The pivoting razor according to claim 5 , wherein
the holder includes a grip portion provided integrally with the head portion, and
the grip portion is formed integrally with the elastic portion of the head portion and has an exposed finger contact portion.

11. The pivoting razor according to claim 5 , wherein the elastic portion has a hardness within a range of 20 Shore A to 60 Shore A.

12. The pivoting razor according to claim 5 , wherein when the razor head is at the neutral position, the elastic portion is located inside the support hole and between the annular portion of the support portion and the supported portion of the razor head.

13. The pivoting razor according to claim 12 , wherein the supported portion of the razor head includes:
a first connection portion that extends from a blade-body assembly portion in which the blade body is mounted;
a second connection portion with the elastic portion being located between the support portion of the head portion and the second connection portion; and
a coupling portion at which the first connection portion and the second connection portion support each other,
wherein, when the razor head is at the neutral position, an end portion that is separated from the blade-body assembly portion in the second connection portion is located in the support hole.

14. The pivoting razor according to claim 5 , wherein the ridge portion extends concentrically with the tube portion at the circumference of the tube portion.

15. The pivoting razor according to claim 5 , wherein the ridge portion protrudes in a direction away from the razor head.

Assignees

• Nakasuka Hiroyuki
• Haba Daisuke
• Kai R&D Center Co Ltd

Inventors

• Nakasuka Hiroyuki
• Haba Daisuke

Classifications

• 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

• B26B21/52

  Handles, e.g. tiltable, flexible {(handles and attaching handles in general B25G)} · CPC title