Razor

Patent metadata

Field	Value
Publication number	US-9919440-B2
Application number	US-201314439025-A
Country	US
Kind code	B2
Filing date	Nov 5, 2013
Priority date	Nov 6, 2012
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

In a frame body, a first outer frame portion and a second outer frame portion are connected together by a third outer frame portion and a fourth outer frame portion, which are located on the left side and the right side of the cutting edges in a main body, respectively, so that the main body is surrounded by the outer frame portions. This improves the rigidity of the frame body, thereby stabilizing the shaving plane, which links together the skin contact portion of the first outer frame portion, the cutting edges of the blade bodies, and the skin contact portion of the second outer frame portion.

First claim

The invention claimed is:

1. A razor comprising:
a main body including a blade body; and
a frame body attached to the main body, wherein:
the frame body includes:
a first outer frame portion provided below a cutting edge of the blade body;
a second outer frame portion provided above the cutting edge;
a third outer frame portion and a fourth outer frame portion, which connect the first outer frame portion and the second outer frame portion to each other on a left side and a right side of the blade body, respectively;
an opening surrounded by the first to fourth outer frame portions; and
a skin contact portion provided on each of the first outer frame portion and the second outer frame portion,

the main body is fitted in the opening to be surrounded by the outer frame portions; and
the skin contact portion of the first outer frame portion, the cutting edge of the blade body, and the skin contact portion of the second outer frame portion being connected by a shaving plane,

wherein
the main body includes a first inner frame portion positioned below the cutting edge of the blade body and a second inner frame portion positioned above the cutting edge;
the first inner frame portion includes a skin contact portion that is aligned with the skin contact portion of the first outer frame portion;
the second inner frame portion includes a skin contact portion that is aligned with the skin contact portion of the second outer frame portion; and
the skin contact portion of the first outer frame portion, the skin contact portion of the first inner frame portion, the cutting edge of the blade body, the skin contact portion of the second outer frame portion, and the skin contact portion of the second inner frame portion are arranged in the shaving plane,
in addition to the first inner frame portion and the second inner frame portion, the main body includes a third inner frame portion and a fourth inner frame portion, which connect the first inner frame portion and the second inner frame portion to each other on a left side and a right side of the cutting edge of the blade body to sandwich the blade body;
the cutting edge of the blade body is exposed from an opening surrounded by the first to fourth inner frame portions;
each of the third outer frame portion and the fourth outer frame portion includes a skin contact portion;
the third inner frame portion includes a skin contact portion that is aligned with the skin contact portion of the third outer frame portion; and
the fourth inner frame portion includes a skin contact portion that is aligned with the skin contact portion of the fourth outer frame portion,
the skin contact portion of the third outer frame portion and the skin contact portion of the third inner frame portion are continuous with each other in the shaving plane;
the skin contact portion of the fourth outer frame portion and the skin contact portion of the fourth inner frame portion are continuous with each other in the shaving plane; and
the skin contact portion of the first outer frame portion, the skin contact portion of the first inner frame portion, the skin contact portion of the second outer frame portion, the skin contact portion of the second inner frame portion, the skin contact portion of the third outer frame portion, the skin contact portion of the third inner frame portion, the skin contact portion of the fourth outer frame portion, the skin contact portion of the fourth inner frame portion, and the cutting edge of the blade body are arranged in the shaving plane,
in the frame body, a shaving aid is provided in at least one of the skin contact portion of the first outer frame portion and the skin contact portion of the second outer frame portion,
the skin contact portion of the second outer frame portion has a through hole,
the shaving aid includes an annular supporting portion attached to inner surfaces, and a non-support portion formed inside the supporting portion, in inner portions around the through hole,
the non-support portion includes a deformable portion annularly formed at a part that borders the supporting portion and a movable portion formed inside the deformable portion,
the deformable portion includes an annular groove portion and an annular thin portion formed by the groove portion,
the movable portion is caused to expand forward by a cavity formed inside the thin portion along an inner periphery of the thin portion, and is surrounded by the groove portion.

2. The razor according to claim 1 , wherein:
the skin contact portion of the first outer frame portion and the skin contact portion of the first inner frame portion are continuous with each other in the shaving plane; and
the skin contact portion of the second outer frame portion and the skin contact portion of the second inner frame portion are continuous with each other in the shaving plane.

3. The razor according to claim 1 , wherein:
each of the frame body and the main body includes a stopper portion; and
when the main body is fitted in the opening of the frame body, the stopper portions restrict movement of the frame body in a direction in which the main body is fitted and a direction opposite to the fitting direction.

4. The razor according to claim 1 , wherein:
the main body and the frame body each include a front side, at which the cutting edge of the blade body is exposed, and a back side opposite to the front side; and
each of the frame body and the main body includes a stopper portion such that the main body is allowed to be fitted in the opening of the frame body with the back side of the frame body facing the front side of the main body.

5. The razor according to claim 1 , wherein, in the main body, a recess portion adjacent to the shaving aid of the frame body is provided in at least one of the skin contact portion of the first inner frame portion and the skin contact portion of the second inner frame portion.

6. The razor according to claim 1 , wherein, in the frame body, a length of the shaving aid in a direction in which the cutting edge extends is set to be greater than a length of the cutting edge of the blade body exposed in the main body.

7. The razor according to claim 1 , wherein, in the frame body, a shaving aid is provided in each of the skin contact portion of the first outer frame portion and the skin contact portion of the second outer frame portion.

8. The razor according to claim 7 , wherein the shaving aid provided in each of the skin contact portion of the first outer frame portion and the skin contact portion of the second outer frame portion is formed by injection molding.

Assignees

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

Inventors

• Haba Daisuke

Classifications

• B26B21/443

  Lubricating strips attached to the razor head · CPC title

• B26B21/4025

  Cap elements · CPC title

• B26B21/4012 Primary

  Housing details, e.g. for cartridges · CPC title

• B26B21/225

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

• B26B21/44

  Means integral with, or attached to, the razor for storing shaving-cream, styptic, or the like · CPC title