JPH01198508A - Supporting mechanism for depressing lever of nail nippers - Google Patents

Abstract

PURPOSE:To simplify a structure of the title nippers by reducing parts and to make it easy to mount a depressing lever on an upper edge and lower edge of the nail nippers, by directly making the supporting hole for an upper edge and lower edge of the nail nippers on the depressing lever, instead of its supporting frame. CONSTITUTION:A holding hole 7, in which an upper edge and a lower edge of nippers (1 and 2) are inserted, is formed on a supporting portion (4a) of a depressing lever 4. A supporting projection 8 and a supporting hole 3 as each fulcrum for lever motion, are respectively formed on the supporting portion (4a) and the lower edge 2 of the nippers, and the depress portion for pushing the upper edge 1 of the nippers toward the lower edge 2 of the nippers is, when in use, formed at the supporting (4a). Since the depressing lever 4 is revolved around the fulcrums (3 and 8) for lever motion by pushing the lever 4 downward, the upper edge 1 is depressed downward, when in use. The upper edge 1 thus approaches the lower edge 2, and both points <(1a) and (2a)> of the upper edge and lower edge of the nippers (1 and 2) are contacted with each other. On the other hand, when the depressing lever 4 is released, it is lifted up by the elastic force of them (1 and 2) revolved around the fulcrums (3 and 8) upward, and springed back as before.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) This invention relates to a support structure for a pressing lever in a nail clipper.

(Prior art) In conventional nail clippers, a support shaft is usually rotatably inserted through the upper blade body, and the lower end of this support shaft is locked to the lower blade body, and the upper blade body At the upper end of the support shaft, a pressing lever is supported by a connecting pin so as to be rotatable in the vertical direction.

However, this structure of nail clippers requires a support shaft and a connecting pin, which increases the number of parts and complicates the structure, and it is very troublesome to assemble the pressing lever to the upper and lower blade bodies.

Therefore, a nail clipper disclosed in Japanese Utility Model Publication No. 54-41825 was devised. In this nail clipper, the upper blade body and the lower blade body are fixed to each other, each having elasticity in the direction of approaching and separating, and a support frame is inserted into the upper and lower blade bodies, and the upper and lower blade bodies Upper and lower locking portions are formed to which the double blade bodies are pressed together by their elastic force, and locking holes and locking protrusions that engage with each other are provided between the upper and lower locking portions of the support frame and the upper and lower blade bodies. It is being In particular, the front end of the pressing lever is sandwiched between this and the upper locking part of the support frame on the upper blade body. Then, by sliding this front end between the upper blade body and the upper locking part of the support frame, the pressing operation lever stands up diagonally above the upper blade body, and the pressing operation lever changes to the upper blade body. It is possible to position it in an unused state where it overlaps the top.

(Problems to be Solved by the Invention) However, since the front end of the pressing lever is constantly pressed against the upper locking portion of the support frame due to the elastic force of the upper blade, when sliding the pressing lever, Frictional resistance is generated between the front end portion and the upper locking portion of the upper blade body and the support frame, making it difficult to perform the sliding operation. In addition, in order to insert the front end of the pressing lever between the upper blade and the support frame when the support frame is inserted into both the upper and lower blade bodies, the upper blade must be supported while supporting the support frame. Press the lower blade against the elastic force to widen the gap between the upper blade and the upper locking part of the support frame, and while maintaining this state, insert the front end of the pressing lever between them. Therefore, assembling the press-operated lever was troublesome.

An object of the present invention is to eliminate the support frame and form locking holes for the upper and lower blade bodies directly on the pressing operation lever, thereby reducing the number of parts and simplifying the structure. The purpose is to facilitate this assembly.

Structure of the Invention (Means for Solving the Problems) That is, as shown in the drawings of each embodiment described later, the present invention has an upper blade body 1 and a lower blade body 2 that are fixed to each other and are moved closer to each other and separated from each other. In this nail clipper, a pressing operation lever 4 is supported on the upper blade body 1 so as to be rotatable in the vertical direction. 1.2 is inserted into the locking hole 7, and between the support portion 4a and the lower blade body 2, a support hole 3 and a support protrusion 8 are provided as a rotation fulcrum portion that engage with each other, Support part 4a
includes a pressing part 78 that presses the upper blade body 1 toward the lower blade body 2 side during use.
．． 10.

(Function) Now, when the lever 4 is pressed downward by the pressing operation during use, the pressing lever 4 rotates around the pivot parts 3 and 8, and the upper blade is moved by the pressing parts 7a and 10 of the pressing lever 4 Body 1 is pressed downward. As a result, the upper blade 1 approaches the lower blade 2 supported on the locking hole 7 of the pressing operation lever 4, and the cutting edges 1a, 2a of the upper and lower blades 1, 2 come into contact with each other. On the other hand, when the lever 4 is released by the pressing operation, the elastic force of the upper and lower blade bodies 1.2 lifts the lever 4, and the rotation fulcrum portion 3° 8 is lifted.
Rotate upwards around the center and return to the original state.

(Example) First, a first example of the present invention will be described with reference to FIGS. 1 to 5.

The upper blade body 1 and the lower blade body 2 are fixed to each other at their rear ends,
Each has elasticity in the direction related to the approach 11. Cutting edges 1a and 2a are formed at the front ends of the upper and lower blade bodies 1.2 to face each other. A support hole 3 is transparently provided in the lower blade body 2 near the cutting edge 2a thereof.

The pressing lever 4 is composed of an upper plate portion 5 and left and right side plate portions 6, and the front end portion of the pressing lever 4 is slightly bent downward to form a support portion 4a. In this support portion 4a, a rectangular locking hole 7 is transparently provided in the upper plate portion 5, and both upper and lower locking edges 7a of this locking hole 7 are provided.

A support protrusion 8 is formed on the lower locking edge 7b of the locking edge 7b. The tip of this support protrusion 8 has a curved abutment surface 8a.
It has become. The front ends of the upper and lower blade bodies 1.2 are inserted into the locking hole 7, and the upper and lower locking edges 7a, 7 of the locking hole 7 are fitted.
The upper and lower blade bodies 1.degree. 2 are pressed into contact with each other by their elastic force, and the support protrusion 8 is inserted into the support hole 3 of the lower blade body 2 from below. The engagement between the support hole 3 and the support protrusion 8 constitutes a rotation fulcrum of the pressing operation lever 4.

When assembling the lever 4 to the upper and lower blade bodies 1.2 by pressing, insert the front end of the upper and lower blade bodies 1.2 into the locking hole 7 and move it in the direction of the arrow, as shown in Figure 4. , the support protrusion 8 is inserted into the support hole 3. At this time, as shown in Figure 5,
Since the curved contact surface 8a of the support protrusion 8 is in line contact with the lower surface of the lower blade body 2, the relative movement resistance thereof is reduced.

Now, when the pressing operation lever 4 is pressed downward during use, the pressing operation lever 4 rotates downward about the rotation fulcrum part 3.8, and the upper locking edge of the locking hole 7 of the pressing operation lever 4 is rotated downward. The upper blade body 1 is pressed downward by 7a (pressing portion). As a result, the upper blade 1 approaches the lower blade 2 supported on the lower locking edge 7b of the locking hole 7 of the pressing operation lever 4, and the upper and lower blades 1
．． The cutting edges 1a and 2a of the two abut against each other. On the other hand, when the lever 4 is released, the elastic force of the upper and lower blade bodies 1.2 causes the lever 4 to be lifted up via its upper locking edge 7a and upwardly centered around the rotation fulcrum 3.8. Rotate and return to the original state.

Particularly in this embodiment, since there is no support frame as in the prior art, the number of parts is reduced and the structure is simplified. In addition, the upper and lower double blade bodies 1 can be removed by simply inserting the upper and lower double blade bodies 1.2 into the locking hole 7 of the pressing operation lever 4 and engaging the support protrusion 8 into the support hole 3 of the lower blade body 2. , 2 can support the pressing operation lever 4, so that their assembly becomes very easy.

The second embodiment shown in FIG. 6 is a modification of the first embodiment in which the cross-sectional shape of the rod 4 is changed by the pressing operation, and as shown in FIG. It is formed.

In the third embodiment shown in FIG. 8, the pivot points 3 and 8 of the pressing operation lever 4 are changed from the first embodiment, and support holes 3 are cut in both side edges of the lower blade body 2. At the same time, the lower locking edge 7b of the locking hole 7 of the pressing operation lever 4 is separated to form a support protrusion 8 on each locking edge 7b, and both support protrusions 8 are attached to the lower blade body. 2 is inserted into both support holes 3 from below.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 9 to 15.

The structure of the upper and lower blade bodies 1.2 according to this embodiment is almost the same as that of the first embodiment, except that locking recesses 9 are cut out on both left and right edges of the rear end of the lower blade body 2. The same is true.

Further, the configuration of the pressing operation 4 according to the present embodiment is that a pressing member 10 is added and a small protrusion 1° 1 is formed on the inner side of the rear end of the left and right side plate portions 6. Particularly different from that of the first embodiment.

This pressing member 10 is a bar with a circular cross section bent into a substantially U-shape, and both ends 10a of the pressing member 10 are rotatably supported by the left and right side plate portions 6 of the pressing operation lever 4. The lever 4 can be superimposed on the lower side of the upper plate portion 5. In addition, the structure of the support part 4a of the pusher 4 is changed by pressing operation compared to that of the first embodiment, and the locking edges 7b on the lower side from the front end of the left and right side plate parts 6 face each other. At the same time, a support protrusion 8 is formed by bending upward at the opposite edge of the rain lower side locking edge 7b, and the rain lower side locking edge 7b and the front end of the upper plate part 5 A portion surrounded by the front end portions of the left and right side plate portions 6 serves as a locking hole 7. By this pressing operation, the blade 4 is assembled to the upper and lower blade bodies 1.2 in the same manner as in the case of the first actual seat example.

Now, when the pressing member 10 is superimposed on the front lower surface of the upper plate portion 5 of the pressing operating lever 4 during use, the pressing operating lever 4 is supported by the pressing member 10 on the upper blade body 1, as shown in Fig. 9.1O. It tilts diagonally upward. When the pressing operation lever 4 is pressed downward, the upper blade body 1 is bent downward via the pressing member 10, and the upper and lower cutting edges 1a and 2a come into contact with each other.

On the other hand, when not in use, as shown in FIG. 11.12, with the pressing member 10 superimposed on the rear lower surface of the upper plate part 5 of the pressing operation lever 4, the pressing operation lever 4 is pushed downward, When the upper and lower blade bodies 1 and 2 are stored in the pressing operation lever 4, the 13.1
As shown in Fig. 4, the upper and lower blades 1°2 are inserted between the left and right side plate parts 6 of this 4 by pressing operation, and the small protrusions 11 of the both side plate parts 6 are inserted.
is engaged in both locking recesses 9 of the lower blade body 2 due to its elasticity, and at the same time, the upper blade body 1 is pushed downward by the upper locking edge 7a of the locking hole 7 of the pressing operation lever 4, and both the upper and lower blades are locked. Ahead 1a, 2
a approaches. When the rear end of the pressing operation lever 4 is lifted during use, the small protrusions 11 on the left and right side plate parts 6 are brought into contact with the lower blade body 2.
can be removed from both locking recesses 9, and the pressing member 10 can be rotated to the operating state shown in FIG. 9.10.

In this embodiment as well, as in the first embodiment, the number of parts is reduced and the structure is simplified, and the assembly of the upper and lower blades 1 and 2 is greatly facilitated by the pressing operation.

Effects of the Invention In short, according to the present invention, since there is no support frame unlike the prior art, the number of parts is reduced and the structure is simplified. In addition, the upper and lower blade bodies 1 and 2 can be pressed against the upper and lower blade bodies 1 and 2 by simply inserting them into the locking hole 7 of the pressing operation lever 4 and engaging the support protrusion 8 into the support hole 3. Since the operating levers 4 can be supported, their assembly becomes very easy.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, FIG. 1 is a perspective view of the assembly of the nail clipper, FIG. 2 is a sectional view of the assembly, and FIG.
Fig. 3 is an exploded perspective view, Fig. 4 is a sectional view showing the nail clipper being partially assembled, Fig. 5 is an enlarged sectional view taken along the line X-X of Fig. 4, and Fig. 6 is a second embodiment. 7 is a sectional view taken along the line Y-Y in FIG. 6, FIG. 8 is an exploded perspective view showing the nail clipper according to the third embodiment, and FIGS. The fourth embodiment of the invention is shown, FIG. 9 is a perspective view showing the assembly of the nail clipper in the used state, the tenth factor is also a partially cutaway side view, and FIG. 11 is the assembly of the nail clipper in the unused state. is a perspective view, FIG. 12 is a partially cutaway side view, and FIG. 13 is a side view of the first
2 is a naked partial view of A, FIG. 14 is an enlarged Z-Z sectional view of FIG. 12, and FIG. 15 is an exploded perspective view of the nail clipper. 1... Upper blade body, 2... Lower blade body, 3... Support hole, 4
... Press operation lever, 4a - Support part, 7 - Locking hole, 7a - Upper locking edge (pressing part), 8 - Support protrusion, 10 - Pressing member (pressing part), ... Department).

Claims (1)

[Claims] 1. The upper blade body (1) and the lower blade body (2) are fixed to each other, each having elasticity in the direction of approaching and separating, and this upper blade body (
1) In a nail clipper in which a pressing operating lever (4) is supported rotatably in the vertical direction, the upper and lower blade bodies (1, 2) are inserted into the support portion (4a) of the pressing operating lever (4). A locking hole (7) to be fitted is formed, and the support portion (4a) and the lower blade body (
A support hole (3) and a support protrusion (8) as a rotation fulcrum part that engage with each other are provided between the support part (4a) and the support part (4a).
A support structure for a pressing operation lever in a nail clipper, characterized in that a pressing portion (7a, 10) is provided to press the upper blade (1) toward the lower blade (2) during use.