JPH0747092Y2 - Folding razor - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding razor in which a blade portion can be stored in a handle.

[0002]

2. Description of the Related Art Conventionally, as a blade holding structure for a folding knife of this type, the technique of Japanese Utility Model Laid-Open No. 2-59770 has been known.

In this prior art, a pair of arcuate elongated holes are formed in the rotating portion of the blade with respect to the handle to form a doubly supported beam-like plate spring portion as elasticity imparting means. Locking portions are provided so as to protrude from the outer circumference of the leaf spring portion.

On the other hand, the support plate portion of the handle is provided with a plurality of stopper surfaces capable of locking the locking portion, and the elasticity and elasticity of the leaf spring portion are used to engage and overcome the locking surface and the stopper surface. Thus, the protruding state and the stored state of the blade with respect to the handle can be retained and achieved.

[0005]

However, in the above-mentioned prior art, the leaf spring portion that gives elasticity to the engaging portion has a doubly supported beam-like structure due to the provision of the elongated hole, and therefore it is necessary. Since sufficient elasticity cannot be obtained, the following problems occur. (1) During repeated use, the leaf spring portion is likely to crack, the locking portion and the stopper surface are easily damaged or worn, and the function of the leaf spring is lost in a short period of time.

(2) Even if there is a slight manufacturing error in the engaging portion and the stopper surface, the engagement and the overriding of the two are not performed smoothly and surely, and the usability is deteriorated.

Therefore, an object of the present invention is to improve the durability of the leaf spring of the holder rotating portion for holding the blade and to make the leaf spring always function normally even if there is some manufacturing error. To provide a formula razor.

[0008]

In order to achieve the above object, the present invention is a razor in which one end of a holder for holding a blade is rotatably attached to one end of a handle, and a razor for rotating the one end of the holder. A pair of arcuate cantilever leaf springs are provided in the moving portion via a connecting portion, and a spring member formed by forming a locking protrusion on the outer side of the tip of each cantilever leaf spring is provided in the thickness direction.
A plurality of sheets are arranged side by side, and at one end of the handle, an engaging concave portion with which the locking protrusions can be engaged is provided, so that the protruding state and the housed state of the holder with respect to the handle can be held by the engagement.

The holder comprises a pair of holder plates each having a shallow recess for accommodating a blade on each of the facing surfaces and one end of which is provided with the spring member, and the handle has a spine at an upper edge of each of the facing surfaces. It is composed of a pair of handle plates in which a plate is projected and the engaging recess is provided on the lower surface of the end of the back plate.

[0010]

When the razor is used, when the holder is rotated with respect to the handle so that the holder projects, the locking projection of one of the cantilever leaf springs of the holder engages with the engaging recess of the handle. It is retained (FIGS. 1, 3, and 4).

When the holder is rotated when not in use, the above engagement is disengaged, and when the holder is then stored in the handle, the locking projection of the other cantilever leaf spring of the holder engages with the engaging recess of the handle. The stored state is maintained (FIGS. 2 and 5).

Further, in the present invention, since the spring member of the holder rotating portion is the cantilever leaf spring having sufficient elasticity, the engagement and disengagement of the locking projection and the engagement recess are smooth and reliable. Therefore, the usability is improved, and the damage and wear of the elastic engagement portion are prevented, so that the durability is improved.

Further, since the two spring members, which function independently, are arranged side by side, even if one spring breaks, the other spring member still functions, so that it can withstand long-term use.

[0014]

Embodiment In the illustrated embodiment, a folding razor 1
Is a blade 2, a pair of holder plates 3a, 3b as a holder 3 for holding the blade 2, a pair of handle plates 4a as a handle 4 for rotatably holding the holder 3 at one end,
4b and.

The pair of holder plates 3a and 3b are shown in FIG.
It is made of synthetic resin as shown in
It has shallow recesses 5a, 5b for accommodating the blades 2 on its respective facing surfaces, one recess 5a is provided with a pair of circular projections 6, 7, and the other recess 5b is provided with the projections 6, 7. A hole 8 and a recess 9 into which 7 is fitted are formed.

Rotating part 1 at the base end of each holder plate 3a, 3b
0a and 10b have shaft holes 11a and 11b in the center thereof, and a spring member, that is, a pair of upper and lower arc-shaped cantilevered leaf springs 13 at the ends through connecting portions 12a and 12b.
a, 14a and 13b, 14b are formed. And, the cantilever leaf springs 13a, 14a and 13b, 14b
On the outside of each tip of the locking projections 15a, 16a and 15
b and 16b are provided.

The pair of handle plates 4a and 4b are also formed of synthetic resin in a substantially symmetrical shape as shown in FIG. 7, and back plates 17a and 17b are projectingly provided at the upper end edges of the opposing faces thereof. When the 4a and 4b are assembled, a storage space 18 for the blade 2 and the holder plates 3a and 3b is formed between them (see FIG. 4).
And FIG. 8).

Shaft rods 19 and 20 project from both ends of one handle plate 4a, and holes 21 into which the shaft rods 19 and 20 are fitted are provided at both ends of the other handle plate 4b. 22 is provided.

At the front ends of the back plates 17a and 17b,
Engaging recesses 23a, 23b with which the locking projections 15a, 16a and 15b, 16b provided on the cantilever leaf springs 13a, 14a and 13b, 14b can be engaged are provided, and a stopper 24a, a little behind the engaging recesses 23a, 23b. 24b is projected.

The above members are assembled as follows. First, the blade 2 is housed in the concave portion 5a of the one holder plate 3a, and the other holder plate 3b is placed on top of it to sandwich the blade 2 to form the holder 3. In that case, the protrusions 6 and 7 of the one holder plate 3a are passed through the holes 2a and 2b provided in the blade 2 to be fitted into the holes 8 and the recesses 9 of the other holder plate 3b,
Moreover, the holder plates 3a and 3b and the blade 2 are integrated by caulking the tips of the projections 6 on the front part.

Next, the shaft holes 11a, 1a of the holder 3 are
After passing the shaft bar 19 at the front end of the one handle plate 4a through 1b, the other handle plate 4b is overlaid, and the rotating portions 10a, 10
b is rotatably clamped. That is, the shaft rods 19 and 20 of one handle plate 4a are passed through the holes 21 and 22 of the other handle plate 4b,
The assembly is completed by caulking the tips of the shafts 19, 20.

[0022]

According to the present invention, since the spring member of the holder rotating portion is the cantilever leaf spring having sufficient elasticity,
The engagement and disengagement of the locking projection and the engagement recess are smoothly and surely performed, which improves usability and prevents damage and wear of the elastic engagement portion, thereby improving durability.

Further, since the two spring members, which function independently, are arranged side by side, even if one of them is damaged, the other spring member will function, so that it can withstand long-term use.

Since the cantilever leaf spring has sufficient elasticity, even if there is some manufacturing error in the elastic engaging portion, it is allowed and always functions normally.

By constructing the holder and the handle with the pair of the holder plate and the handle plate facing each other, the manufacture and assembly can be simplified.

[Brief description of drawings]

FIG. 1 is a side view showing an essential part of a holder in a protruding state according to an embodiment of the present invention.

FIG. 2 is a side view showing the main part of the same when the holder is stored.

FIG. 3 is an overall side view of the same with the holder protruding.

FIG. 4 is a bottom view of the same.

FIG. 5 is an overall side view of the holder stored state.

FIG. 6 is a development view of a pair of holder plates.

FIG. 7 is a development view of a pair of handle plates of the same.

8 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

 1 Folding Razor 2 Blade 3 Holder 3a, 3b Holder Plate 4 Handle 4a, 4b Handle 5a, 5b Recess 10a, 10b Rotating Part 12a, 12b Connecting Part 13a, 14a, 13b, 14b Cantilever Spring 15a, 16a, 16a, 15b, 16b Locking protrusions 17a, 17b Back plate 18 Storage space 19 Shaft rods 23a, 23b Engagement recesses

Claims (2)

[Scope of utility model registration request] 1. A razor in which one end of a holder for holding a blade is rotatably attached to one end of a handle, and the rotator at one end of the holder has a pair of arc-shaped members via a connecting portion. Two cantilever leaf springs are provided, and two spring members are formed side by side in the thickness direction, each of which is formed by forming a locking projection on the outer side of the tip of each cantilever leaf spring. A foldable razor, characterized in that an engaging concave portion capable of engaging with the handle is provided so that the protruding state and the housed state of the holder with respect to the handle can be maintained. 2. The holder comprises a pair of holder plates each having a shallow recess for accommodating a blade on each facing surface and one end provided with the spring member, and the handle has a spine at an upper edge of each facing surface. A foldable razor comprising a pair of handle plates, each of which is provided with a plate projecting from the back plate and provided with the engaging recess on the lower surface of the end of the back plate.