JPS5835188Y2 - safety razor - Google Patents

Description

[Detailed description of the invention] This invention is based on a safety razor, in particular, a guard member is provided to correspond to the cutting edge of the shaving blade, and the slope of the tangent passing through the cutting edge on the outer peripheral surface of the guard member (hereinafter referred to as the shaving angle) is )
The object of the present invention is to provide a safety razor that has a simple structure and allows for easy adjustment of the shaving angle to provide a comfortable shave. be.

Hereinafter, an embodiment embodying this invention will be described based on the drawings. In the drawing, 1 is a blade stand having a handle 2 on the lower surface, 3 is a razor provided on the upper surface of the blade stand 1, and the cutting edge is 3a projects forward from the front edge of the blade rest 1.

Reference numeral 4 denotes a fixing hole 7 formed on the upper surface of the blade base 1 through which a pair of protrusions 5 protruding from both sides of the lower surface pass through a through hole 6 formed on the razor 3.
A top plate fitted and fixed to the razor 3 excluding the cutting edge 3a.
The razor 3 is clamped and fixed between it and the blade stand 1.

Reference numeral 8 denotes a pair of left and right support arms formed to protrude forward from the cutting edge 3a of the razor 3 from both sides of the blade stand 1, and a shaft hole 9 is transparently provided at the tip.

Reference numeral 10 denotes a through groove formed between the surface support arm 8 and both front parts of the blade base 1, so that the support arm 8 can be bent upward or downward.

11, as shown in FIG. 3, has a roughly elliptical cross section;
A guard member having eccentric shafts 12 at both ends, the razor 3
The eccentric shaft 12 is supported in the shaft hole 9 so as to be parallel to the cutting edge 3a.

Therefore, the outer peripheral surface of the guard member 11 becomes a cam surface centered on the eccentric shaft 12, and as the guard member 11 rotates, the slope of the tangent on the cam surface passing through the cutting edge 3a of the razor 3, that is, the shaving angle. changes.

Reference numeral 13 denotes one eccentric shaft 12 protruding outward from the shaft hole 9.
An operating member fixed to the guard member 11 and having an operating knob 17 for rotating the guard member 11.
1 for removably engaging with locking recesses 14 formed at two side tips of the support arm 8 at an appropriate rotational position to hold the guard member 11 at the appropriate rotational position.
A number of locking protrusions 15 are provided in a protruding manner.

Reference numeral 16 indicates the operating member 1 so as to correspond to the locking protrusion 15.
3, which is for allowing the locking protrusion 15 to elastically engage and disengage from the locking recess 14.

Therefore, in order to change the shaving angle according to the shading of the beard, etc., the guard member 11 can be adjusted by rotating the guard member 11 using the operation knob 17 and aligning the locking protrusion 15 with the locking recess 14 at the appropriate position. It is fixed at an appropriate shaving angle position, allowing you to shave comfortably.

In this way, the cam surface is formed on the outer peripheral surface of the guard member 11, and a holding means for holding the guard member 11 at an appropriate rotational position is provided, so the structure is simple and the shaving angle can be adjusted. This allows you to easily and comfortably shave your beard.

As exemplified in the embodiments above, this invention has a pair of supporting arms protruding from both sides of the blade base, and a shaving blade extending parallel to the cutting edge of the razor blade between the tips of the two supporting arms. A guard member having a cam surface is rotatably supported, and
By providing a holding means for holding the guard member at an appropriate rotational position, the structure is simple and the shaving angle can be easily adjusted, which provides an excellent effect.

In addition, if the permeable groove 10 is provided between the blade stand 1 and the support arm 8 as in the embodiment, unreasonable force will be applied to the cutting edge 3a of the shaving blade 3, making it difficult to perform the shaving operation smoothly. In this case, the support arm portion 8 is bent and the guard member 11 approaches the cutting edge 3a, thereby preventing damage to the skin.

Moreover, this invention is not limited to the above embodiments,
For example, the guard member may be eccentric with a circular cross section, or a thread may be formed on one shaft of the guard member, and a nut or the like that is screwed into the thread may be tightened to the support arm to hold the guard member in a predetermined position. such as to be able to hold it in
Any changes can be made without departing from the spirit of the invention.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted perspective view of a safety razor that embodies this invention, Fig. 2 is an exploded perspective view of the same, and Fig. 3 a and l) respectively show the relationship of the shaving angle between the guard member and the cutting edge. FIG. Blade base...1, Shaving blade...3, Blade tip...
...3a, Support arm section...8, Guard member...
...11. Locking recess: 14, locking protrusion: 15°

Claims (1)

[Claims for Utility Model Registration] 1. In a safety razor with a shaving blade provided on the top surface of the blade holder, a pair of supporting arms are provided protruding from both sides of the blade holder, and a pair of supporting arms is provided between the tips of the surface supporting arms. The guard member having a cam surface on its outer periphery is rotatably supported so as to extend parallel to the cutting edge of the razor blade, and a holding means is provided for holding the guard member at an appropriate rotational position. It is characterized by safety. 2. The safety razor according to claim 1 of the utility model registration claim, wherein the support arm is formed so that a through groove is provided between it and the blade base. 3 The locking means includes a locking protrusion provided on one of the shafts at both ends of the guard member, and a plurality of locking protrusions provided on the support arm so that the locking protrusion is releasably engaged with the rotation of the guard member. 1. A safety razor according to claim 1, which comprises a locking recess. 4. The safety razor according to claim 1, wherein the guard member is provided with an operating member for adjusting the rotation thereof.