JPS6327035B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) This invention relates to a safety razor in which two razor blades are fixed via an intervening plate.

(Problems to be solved by the prior art and the invention) Conventionally, as this type of intervening plate, for example,
As shown in Japanese Patent No. 54-97153, a spacer is fixed between two razor blades to maintain the distance between the two razor blades, and a spacer is provided to be movable back and forth at least at the front position of the spacer, so that the spacer can move forward and backward. There is a razor that is constructed of a cleaner that removes shavings between the cutting edges of both razor blades, and an elastic piece that is integrally provided between the cleaner and the spacer and elastically holds the cleaner in the retracted position. .

In this case, if the spacer of the intervening plate and the cleaner are made to have the same thickness, it will be easier to manufacture the mold when synthetic resin is used as the intervening plate, whereas when a metal plate is used, it will be easier to manufacture the mold by simply punching. However, since both the upper and lower razor blades are fixed through the spacer, the cleaner may be pressed against the cleaner and may not move smoothly.

Therefore, the present invention has been devised as a measure to prevent the defects when the thickness of the spacer and the cleaner are made the same.

Structure of the Invention (Means for Solving Problems) That is, as shown in the drawings of embodiments described later, the present invention provides a safety razor in which two razor blades are fixed via an intervening plate. A spacer 7 is fixed between the razor blades 3 and 4 to maintain a gap between the razor blades 3 and 4, and a spacer 7 is provided so as to be movable back and forth at least at the front position of the spacer 7. A cleaner 8 for removing shavings between the cutting edges 3a and 4a of the razor blades 3 and 4, and an elastic piece 9 that is integrally provided between the cleaner 8 and the spacer 7 and elastically holds the cleaner 8 in the retreated position. constitutes an intervening plate 6, and the spacer 7 and cleaner 8
The thickness of the razor blades 3 and 4 are the same, and the two razor blades 3 and 4 are
At least one of them is provided with step portions 5, 18 that abut against the spacer 7 so as to provide a gap S between the cleaner 8 and the razor blades 3, 4.

(Function) When shaving shavings become clogged between the cutting edges 3a and 4a of both razor blades 3 and 4, the shaving shavings can be easily removed by moving the cleaner 8 of the interposed plate 6 forward. At this time, due to the gap S, the cleaner 8 is not pressed against both the razor blades 3 and 4, and its movement becomes smooth.

(Embodiment) Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS. 1 to 3. In the drawings, reference numeral 1 denotes a blade stand, and a guard portion 2 is provided at the front edge.

Reference numerals 3 and 4 denote two razor blades arranged on the upper surface of the blade stand 1, in which the cutting edge 4a of the upper razor blade 4 is retracted, and the central blade width of the upper razor blade 4 is In this direction, a stepped portion 5 is formed that curves downward.

Reference numeral 6 denotes an intervening plate interposed between the two razor blades 3 and 4, which is an intervening plate fixed between the lower razor blade 3 and the stepped portion 5 of the upper razor blade 4. Spacer 7
, a substantially rectangular frame-shaped cleaner 8 which is arranged so as to surround the spacer 7 and is movable back and forth, and a third
As shown in the figure, it is comprised of a pair of symmetrical elastic pieces 9 that are integrally provided between the rear inner left and right sides of the cleaner 8 and the center part of the spacer 7, and elastically hold the cleaner 8 in the retracted position. , spacer 7
and the cleaner 8 have the same thickness, and there is a gap S between the cleaner 8 and the upper razor blade 4.
It is becoming possible to do this. And spacer 7
has the function of maintaining the distance between the razor blades 3 and 4, and the cleaner 8 moves forward against the elasticity of the elastic piece 9 to remove shavings between the cutting edges 3a and 4a of the razor blades 3 and 4. It can be removed from the front end opening between the razor blades 3 and 4. Reference numeral 10 denotes an operating section formed on the rear end edge of the cleaner 8, and is used to move the cleaner 8 forward against the elasticity of the elastic piece 9.

Reference numeral 11 denotes a top plate provided on the top surface of the upper razor blade 4, and four fixed legs 12 protruding from the bottom surface of the top plate are attached to the razor blade 4, the spacer 7, the razor blade 3, and the blade base 1. They are caulked to the lower surface of the blade base 1 through the through holes 13, 14, and 16 formed respectively.

Therefore, if shaving shavings become clogged between the cutting edges 3a and 4a of both razor blades 3 and 4, the cleaner 8 of the interposed plate 6 can be moved forward using the operation unit 10 to easily remove the shaving shavings, and the shaving shavings can be easily removed. You can maintain cleanliness and have a comfortable shave.

In particular, since the spacer 7 of the intervening plate 6 and the cleaner 8 are made to have the same thickness, it is easy to manufacture the mold when synthetic resin is used as the intervening plate 6, whereas when a metal plate is used, it is easy to manufacture the mold. It is only necessary to perform punching and forming, which makes processing very easy. Also, since there is a gap S between the cleaner 8 and the upper razor blade 4,
The cleaner 8 is not pressed against both the razor blades 3 and 4, and its movement becomes smooth.

Furthermore, since the elastic piece 9 connecting the spacer 7 of the intervening plate 6 and the cleaner 8 is symmetrical, the front edge of the cleaner 8 is located at the opening between the cutting edges 3a and 4a of both razor blades 3 and 4. It moves forward without tilting while maintaining a positional relationship parallel to the shaving shavings, and can reliably remove shavings without leaving any residue.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be embodied in the following manner.

(a) As shown in FIG. 4, the pair of elastic pieces 9 of the intervening plate 6 are both inclined in one direction.

(b) As shown in FIG. 5, the lower razor blade 3 is also provided with a stepped portion 18 that curves upward,
A spacer 7 is fixed between the stepped portions 5 and 18 of the cleaner 8, and a gap S is provided between the cleaner 8 and both razor blades 3 and 4.

Effects of the Invention In short, the present invention makes the thickness of the spacer 7 and the cleaner 8 the same, and at least one of the two razor blades 3, 4 has a gap between the cleaner 8 and the razor blades 3, 4. Since the step portions 5 and 18 that abut against the spacer 7 are formed so as to have S, the shavings stuck between the cutting edges 3a and 4a of both razor blades 3 and 4 can be easily removed using the cleaner 8 of the intervening plate 6. Not only can the intervening plate 6 be easily manufactured, but also the cleaner 8 of the intervening plate 6 can be moved smoothly.

[Brief explanation of drawings]

1 to 3 show one embodiment of the present invention, in which FIG. 1 is an exploded perspective view of the razor head, FIG. 2 is a cross-sectional view, FIG. 3 is a plan view of the interposed plate, and FIG. The figure is a plan view showing another example of the interposed plate, and FIG. 5 is a sectional view showing another example of the razor head. Razor blade...3,4, Interposition plate...6, Spacer...
7. Cleaner... 8. Elastic piece... 9. Step part...
5,18, Gap...S.

Claims (1)

[Scope of Claims] 1. In a safety razor in which two razor blades are fixed via an intervening plate, in order to maintain the distance between the two razor blades 3 and 4, a spacer 7 fixed to the spacer 7; a cleaner 8 which is movable back and forth at least at a position in front of the spacer 7 and removes shavings between the cutting edges 3a and 4a of the razor blades 3 and 4 by moving forward; An intervening plate 6 is constituted by an elastic piece 9 that is integrally provided between the cleaner 8 and the spacer 7 and elastically holds the cleaner 8 in the retreated position, and the thickness of the spacer 7 and the cleaner 8 are made the same. In addition, at least one of the two razor blades 3 and 4 is provided with the cleaner 8 and the razor blades 3 and 4.
the spacer 7 so as to have a gap S between
A two-blade safety razor characterized in that stepped portions 5 and 18 are formed in contact with the two-blade safety razor. 2. The two-blade safety razor according to claim 1, wherein the cleaner 8 has a substantially rectangular frame shape surrounding the spacer 7. 3. The two-blade safety razor according to claim 2, wherein the elastic pieces 9 are a pair of symmetrical elastic pieces provided between the left and right rear inner sides of the cleaner 8 and the center of the spacer 7. 4. The two-blade safety razor according to claim 2, wherein the elastic pieces 9 are a pair of elastic pieces 9 provided between the rear part of the spacer 7 and the inner rear part of the cleaner 8 and inclined in one direction.