JPH0647174A - Safety razor blade assembly - Google Patents

Abstract

PURPOSE:To allow a safety razor to smoothly follow the face to prevent rough shaving by permitting movement of two blades relative to a main body through the action of elastic portions, and connecting the blades together using hinges, the positions of the two blades being longitudinally deviated from each other. CONSTITUTION:A blade support 1 comprises a plurality of blade mounts 5, 6, a plurality of elastic portions 7, 8 and the remaining blade support main body, and two blades 2, 3 are secured onto the blade mounts 5, 6 at longitudinally deviated positions so that front and rear planes are formed in the respective blade mounts 5, 6. The blade mount 5 forming the front plane and the blade mount 6 forming the rear plane are connected to the respective portions of the blade support main body via the respective independent elastic portions 7, 8 so that the front blade 2 secured to the blade mount 5 and the rear blade 3 secured to the blade mount 6 are independently movable. The front and rear blades 2, 3 are connected together by a connecting member 4 and a hinge 9 is provided somewhere in the connecting member 4. Therefore, the rear blade 3 can surely catch and shave whiskers unshaven by the front blade 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a safety razor blade assembly mounted on a handle of a safety razor, the blade moving during use.

[0002]

2. Description of the Related Art In a conventional safety razor blade assembly in which two blades move during use, the two blades are attached to a blade support through elastic members which are completely separate from each other, and The structure was such that the two blades moved independently according to the unevenness.

[0003]

In the above-mentioned conventional safety razor blade assembly, it is considered that the leading blade and the trailing blade move in almost the same manner according to the unevenness of the surface of the face.
A beard left on the leading blade by shaving due to a partial dent on the face also leaves the succeeding blade similarly shaving, which is a drawback that the effect of using two blades cannot be sufficiently obtained.

[0004]

According to the present invention, a blade support 1 and two blades 2, 3 and a connecting member 4 for connecting the blades to each other are provided.
The blade support 1 is composed of a plurality of blade bases 5 and 6, a plurality of elastic portions 7 and 8 and a blade support body other than these, and the two blades 2 and 3 are positioned in front and rear positions. The blade bases 5 and 6 compose two planes, a front plane and a rear plane, in order to shift and fix the blade base on the blade base.
Front blade 2 fixed to the blade and a blade base portion 6 forming a rear plane.
In order to make the rear blades 3 fixed to each independently movable, the blade base portion 5 forming the front plane and the blade base portion 6 forming the rear plane are separately supported by elastic portions 7 and 8. It is characterized in that the front blade 2 and the rear blade 3 are connected to the body main body by a connecting member 4 and a hinge 9 is provided in the middle of the connecting member 4.

[0005]

EXAMPLE A blade support body has a rectangular frame, and one of the long frames 10 and 11 is formed as a guard portion. In the first half of the frame, there are four blade parts 5 in the horizontal direction.
Are arranged side by side, and are connected to the blade support body via an elastic portion 7 that integrally extends from the inner surface of the other long frame 11.
In the latter half of the frame, the blade rests 6 are provided side by side as in the first half, and the elastic portion 8 integrally extends from the inner surface of the one long frame 10.
Is connected to the blade support body via. The four blade rests 5 present in the front half form a front plane, and the four blade rests 6 present in the latter half form a rear plane, and the rear plane is higher than the front plane. The front blade 2 is mounted on the front plane and the rear blade 3 is mounted on the rear plane.

The connecting member 4 of this embodiment also serves as a top plate for covering the blades 2, 3, and two top plates 15, 16 are provided side by side between the both side parts 14, 14. There is. Very thin hinges 9 and 9 are provided at substantially the center of both side portions 14 and 14. Therefore, the top plate 1
Reference numerals 5 and 16 swing about the hinge 9 with respect to each other.

Four projections 17 and 18 are provided on the back surfaces of the top plate portions 15 and 16, respectively. The projections 17 and 18 are through holes 19 and 20 provided in the double-edged blades 2 and 3 and the blade base portion 5, respectively.
By pressing the tip of the protrusion penetrating through the mounting holes 12 and 13 provided in 6 and protruding to the back surface of the blade stand portion, the two blades 2, 3 and the connecting member 4 are joined to the blade stand portion 5, 6. . In the figure, reference numeral 21 is a concave portion provided on the outer surface of both the short frames 22 and 22, and a Y is provided at the upper end of the handle of a separate safety razor.
This is for locking the tip of the arm extending in a letter shape and connecting the safety razor blade assembly to the handle.

[0008]

Since the constitution of the present invention is as described above,
Both blades 2 and 3 swing relative to each other around hinges 9 and 9. This rocking means that when the blade slides on the surface of the face, the two blades generate undulations, as if they were tank tracks. That is, the present invention utilizes the action of the caterpillar that reliably captures the undulating ground. Therefore, especially when shaving the concave portion of the face surface, the rear blade 3 is forced to project outwardly because the hinge 9 warps outwards along this concave portion. It will be. As a result, the two blades 2 and 3 slide so as to undulate the surface of the face, and the beard left by the front blade 2 which is the leading blade is left shaving, and the rear blade 3 which is the subsequent blade reliably catches and shaves.

[Brief description of drawings]

FIG. 1 is an exploded view of an embodiment of a safety razor blade assembly according to the present invention.

FIG. 2 is a completed perspective view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Blade support 2 Front blade 3 Rear blade 4 Connecting member 5 Blade stand 6 Blade stand 7 Elastic part 8 Elastic part 9 Hinge 15 Top plate part 16 Top plate part

Claims (1)

[Claims] 1. A blade support 1 and two blades 2, 3 and a connecting member 4 for connecting the blades, wherein the blade support 1 has a plurality of blade bases 5, 6 and a plurality of elastic members. In order to fix the two blades 2 and 3 to the blade base by shifting the positions of the blades 2 and 3 forward and backward, the blade bases 5 and 6 are forward. Compose two planes, a plane and a rear plane,
A front blade 2 fixed to a blade base portion 5 forming a front plane,
The blade bases 5 forming the front plane and the blade bases 6 forming the rear plane are provided with different elasticity so that the rear blades 3 fixed to the blade base 6 forming the rear plane can move independently. The front blade 2 and the rear blade 3 are connected to the main body of the blade via the portions 7 and 8, and the front blade 2 and the rear blade 3 are connected by a connecting member 4, and a hinge 9 is provided in the middle of the connecting member 4. Safety razor blade assembly