JPH0618527B2 - Pressing lever for nail clipper Support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a supporting structure for a pressing operation of a nail clipper.

(Prior Art) In a conventional nail clipper, usually, a support shaft is rotatably inserted through both upper and lower blades, and a lower end portion of the support shaft is locked by a lower blade body and an upper blade body. A pressing lever is supported on the upper end of the support shaft by a connecting pin so as to be vertically rotatable.

However, in the nail clipper of this structure, since the support shaft and the connecting pin are required, the number of parts increases and the structure becomes complicated, and the assembling is very troublesome due to the pressing operation on the upper and lower blades.

Then, the nail clipper shown 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 so that each of them has elasticity in a direction of approaching and separating, and a support frame is inserted into both the upper and lower blade bodies, and the upper and lower blade bodies are vertically fitted to the support frame. Both upper and lower engaging portions are formed by which both blades are pressed against each other by their elastic force, and an engaging hole and an engaging protrusion are provided between the upper and lower engaging portions of the support frame and the upper and lower blades. Has been. In particular, the front end of the upper blade is inserted between the upper blade and the upper locking portion of the support frame by the pressing operation. Then, by sliding this front end between the upper blade and the upper locking portion of the support frame, the pressing operation lever rises obliquely above the upper blade body, and the pressing lever leverages the upper blade. It can be positioned when not in use and over the body.

(Problems to be solved by the invention) However, since the front end portion of the pressing operation is constantly in pressure contact with the upper locking portion of the support frame by the elastic force of the upper blade body, when the pressing operation lever is slid, There is a problem that frictional resistance occurs between the front end portion and the upper blade and the upper locking portion of the support frame, which makes it difficult to perform the sliding operation. In addition, when the support frame is inserted into the upper and lower blades and the front end portion is inserted by pressing between the upper blade and the support frame, the upper blade is supported with the support frame supported. Pressing against the lower blade side against the elastic force, widen the gap between the upper blade and the upper locking part of the support frame, and while maintaining that state, press between them to insert this front end part. It was necessary to carry out this assembling work because of the pressing operation.

Furthermore, since this front end is bent by pressing operation,
There is also a problem that when the pressing lever is piled up on the upper blade body in a non-use state, the front end portion of the upper blade body largely projects, and the entire nail clipper becomes bulky.

An object of the first invention is to facilitate the moving operation and its assembling by pressing operation by providing the rotation fulcrum parts on both sides of the support frame corresponding to the openings on both sides between the upper and lower blades. , The pressing operation does not cause the lever to largely project so that the entire nail clipper is not bulky.

In addition to the object of the first invention, an object of the second invention is to improve the holding structure by a pressing operation when not in use so that the positioning is ensured by the pressing operation.

Structure of the Invention (Means for Solving Problems) That is, the first invention is the first to the first embodiments in the drawings of the embodiments described later.
As shown in FIG. 6 or FIGS. 7-9 or 10-12,
The upper blade body 1 and the lower blade body 2 are fixed to each other so that each of them has elasticity in a direction of approaching and separating, and a supporting frame 7 is inserted into the upper and lower blade bodies 1 and 2, and the supporting frame 7 is attached to the supporting frame 7. In the nail clipper that supports the pressing lever 15 so as to be rotatable in the vertical direction, the support frame 7 is formed with a notch in the rotation fulcrum portion 12 on both side portions 9 corresponding to the both side openings 14 between the upper and lower blade bodies 1, 2. Then, the pressing frame lever 15 is provided with an insertion portion 16 into which the upper blade body 1 is inserted, and a front end portion 15a of the pressing lever lever 15 which is inserted between the upper and lower blade bodies 1 and 2 to support the support frame. 7, a support portion 17 that is inserted into and removed from both rotation fulcrums 12, and the support portion 17
And a pressing portion 16a that comes into contact with the upper surface of the upper blade 1 in a state in which is inserted into and supported by both rotation fulcrums 12 of the support frame 7.

In addition, the second invention is the first to the first in the drawings of the respective embodiments which will be described later.
As shown in FIG. 6 or FIG. 7 to FIG. 9, in addition to the structure of the first invention, a pair of locking portions 6, 6 corresponding to each other are provided between the pressing lever 15 and the blade bodies 1, 2. 18, 19,
29, which is provided with positioning means for engaging the pressing lever 15 on the upper blade 1 so as to engage with each other in an unused state.

(Operation) In the first invention, when used, the pressing lever 1
When the pressing operation lever 15 is pressed in a state in which the support portion 17 of No. 5 is inserted into both the rotation fulcrum portions 12 of the support frame 7, the support portion 17 rotates with respect to the both rotation fulcrum portions 12 and the upper blade body 1 is pushed by the pushing portion 16a of the pushing lever 15 so that the upper and lower cutting edges 1a, 2a approach each other.

Further, in the second invention, when the pressing lever 15 is superposed on the upper blade 1 when not in use, the locking portions 18, 1
9 engages with the engaging portions 6 and 20 of the blade body 2. From this unused state, they can be removed to the above-mentioned used state.

(Embodiment) First, a first embodiment of the first invention and the second invention will be described with reference to FIGS.

As shown in FIG. 6, the upper blade body 1 and the lower blade body 2 are fixed to each other at their rear end portions, and each has elasticity in a direction of approaching and separating. Notches 4 are formed at both left and right edges of the front end portions 3 of the upper and lower blade bodies 1 and 2, and the front end portions 3 are narrowed. A blade tip 1 is attached to the front end portions 3 of the upper and lower blade bodies 1 and 2.
a and 2a are formed facing each other. A locking hole 5 is provided through the front end portion 3 of the lower blade body 2. On the other hand, as shown in FIGS. 4 and 5, a locking recess 6 as a locking portion is cut out at the rear end of the lower blade body 2.

As shown in FIG. 6, the support frame 7 is formed by bending a strip-shaped plate material into a rectangular cross section, and the left and right side portions 9 are bent downward from the left and right side edges of the upper locking portion 8. In addition, the lower locking portions 10 are bent from the lower ends of the left and right side portions 9 so as to face each other. Locking protrusions 11 are formed by bending upward on the opposite edges of the two lower locking portions 10. In particular, support holes 12 as rotation fulcrums are notched in both left and right side portions 9 of the support frame 7, and opening portions 13 thereof are opened at the rear edges of the left and right side portions 9.

As shown in FIGS. 1 to 4, the front end portions 3 of the upper and lower blade bodies 1 and 2 are inserted into the support frame 7 thus configured, and the left and right side portions 9 of the support frame 7 are attached to the upper and lower blade bodies 1, 1. 2 left and right notches 4
Is fitted into the support frame 7 and the locking projection 11 of the support frame 7
Is engaged with the locking hole 5 of the lower blade body 2. In this state,
The front ends 3 of the upper and lower blades 1 and 2 are pressed against the upper and lower engaging portions 8 and 10 of the support frame 7 by their elastic forces, and the upper and lower blade tips 1a and 2a project forward from the support frame 7. Further, the support holes 12 on both the left and right side portions 9 of the support frame 7 are provided with the upper and lower blade bodies 1,
The lower edges 13a of the open portions 13 of both support holes 12 are flush with the inner surface 2b of the lower blade body 2 in correspondence with the left and right openings 14 between them.

As shown in FIG. 6, the front end portion 15a of the pressing lever 15 is slightly bent downward. In the front end portion 15a, an insertion hole 16 as a square insertion portion is formed,
Of the peripheral portion of the insertion hole 16, one side portion on the front side is the support portion 17
It has become. On the other hand, a locking hook 18 as a locking portion is bent and formed on the rear end of the pressing lever 15 at the lower side thereof, and together with the locking recess 6, a positioning means is formed.

The upper blade 1 is inserted into the insertion hole 16 of the pressing lever 15 thus configured before the upper and lower blades 1 and 2 are inserted into the support frame 7, and the upper lever 1 of the pressing lever 15 is inserted. The support portion 17 is in a state of being inserted between the upper and lower blade bodies 1, 2.

At the time of use, as shown in FIGS. 1 and 2, the support portion 17 of the pressing lever 15 is slid along the inner surface 2b of the lower blade body 2 so that the support portion 7 has open portions 13 of both support holes 12. By guiding, the supporting portions 17 are inserted into both the supporting holes 12, and the pressing portion 16a, which is the rear edge of the insertion hole 16, comes into contact with the upper blade 1 by the pressing operation. When the pushing operation lever 15 is pushed downward in this state, the support portion 7 of the pushing operation lever 15 is pushed downward.
The upper blade 1 is pressed downward by the pressing portion 16a of the pressing lever 15 by pivoting with the two support holes 12 of 7 as fulcrums, and the upper and lower blade tips 1a and 2a approach each other.

When not in use, as shown in FIGS. 3 and 4, the supporting portion 17 of the pressing lever 15 is removed from both supporting holes 12 of the supporting frame 7 and positioned between the upper and lower blade bodies 1 and 2, as it is. The pushing lever 18 is pushed down, the locking hook portion 18 thereof is engaged with the locking recess 6 of the lower blade body 2, and the rear end portion of the upper blade body 1 is held inside the locking hook portion 18, and the upper blade is Push lever 15 on body 1
Pile up.

In addition, the pushing operation lever 15 is slightly lengthened to support its supporting portion 17
It is also possible to insert the locking hooks 18 of the pressing lever 15 into the locking recesses 6 of the lower blade body 2 and put them into a non-use state while keeping the insertion into both the support holes 12 of the support frame 7. In this case, the upper blade 1 is pushed by the pushing lever 15 and the upper and lower blade edges 1
a and 2a approach each other.

From this unused state, the locking hook 18 of the pressing lever 15
Can be removed from the locking recess 6 of the lower blade body 2, and the support portion 17 of the pressing lever 15 can be inserted into both the support holes 12 of the support frame 7 as described above to be used.

Particularly in this embodiment, when the pressing lever 15 is moved between the use state and the non-use state, the supporting portion 17 of the front end portion 15a of the pressing lever 15 is inserted into both the support holes 12 of the support frame 7. Since it is only necessary to insert and remove, unlike the above-described prior art, the elastic force of the upper and lower blades 1 and 2 is not affected when the pressing lever 15 is moved, and the operation is very easy to perform. Also, when assembling the pressing lever 15, the upper blade 1 is inserted into the insertion hole 16 of the pressing lever 15 and the support portion 17 of the pressing lever 15 is inserted between the upper and lower blades 1 and 2. Therefore, unlike the prior art, the influence of the elastic force of the upper and lower blades 1 and 2 is not exerted, and the assembling is very easy.

Furthermore, since the support portion 17 of the front end portion 15a of the pressing lever 15 is inserted between the upper and lower blade bodies 1 and 2 in the unused state, the support portion 17 is attached to the upper and lower blade bodies 1 and 2 and the support frame 7. There is no possibility that the lever 15 abuts and presses the lever 15 inadvertently detached. Moreover, since the locking hook 18 of the pressing lever 15 is engaged with the locking recess 6 of the lower blade 2 and the upper blade 1 is held inside the locking hook 18, the pressing lever 15
Is reliably positioned with respect to the upper and lower blades 1 and 2, and in the assembled state, the front end portion 15a of the pushing lever 15 provided with the support portion 17 is always the upper and lower blades 1, 2.
Since it is located between the two, the front end portion 15a of the pressing lever 15 does not largely project and is not bulky.

The second embodiment shown in FIG. 7 to FIG. 9 is a modification of the positioning means of the pressing lever 15 in the unused state in the first embodiment, and the left and right sides of the rear end of the pressing lever 15 are changed. A small projection 19a is formed inside the locking tongue piece 19 projecting downward from the edge, and locking recesses 20 are cut out at both left and right edges of the rear end of the lower blade body 2, so that it is not used. The rear end portions of the upper and lower blade bodies 1 and 2 are inserted between the two locking tongue pieces 19 of the hour pressing operation lever 15, and the small projections 19a of the two locking tongue pieces 19 are elastically engaged with each other. It is adapted to be engaged with the stop recess 20. When the rear end of the pressing lever 15 is lifted during use, the small protrusions 19a of the locking tongues 19 are disengaged from the locking recesses 20 of the lower blade body 2.

Next, a third embodiment of the first invention will be described with reference to FIGS.

The third embodiment has the same basic structure as that of the first embodiment, but in particular, in the support frame 7, the lower edges 13a of the open portions 13 of both support holes 12 of the support frame 7 are different from the inner surface 2b of the lower blade body 2. The support portion 1 of the pressing lever 15 is not flush with each other.
The difference is that 7 is separated. When not in use, the rear end of the pressing lever 15 is inserted between the upper locking portion 8 of the support frame 7 and the upper blade 1.

Advantageous Effects of Invention According to the first aspect of the invention, when the pushing lever 15 is moved between the use state and the non-use state, the supporting portion 17 of the pushing lever 15 is moved to the both rotation fulcrums 12 of the support frame 7. On the other hand, since it is only necessary to insert and remove it, unlike the above-mentioned prior art, when the pressing operation lever 15 is moved, the upper and lower blade bodies 1, 2
It is not affected by the elastic force of and the operation becomes very easy. Even when the pressing lever 15 is assembled, the upper blade body 1 is inserted into the insertion portion 16 of the pressing lever 15 so that the supporting portion 17 of the pressing lever 15 is attached to the upper and lower blade bodies 1, 2.
Unlike the prior art, it is not necessary to receive the influence of the elastic force of the upper and lower blades 1 and 2, and it is very easy to assemble it because it is only necessary to insert it between them. Further, since the support portion 17 which is inserted into and removed from the rotation fulcrum portion 12 together with the rotation fulcrum portion 12 in the assembled state is always located between the upper and lower blade bodies 1 and 2, the support portion 17 is provided with a pressing force. The front end 15a of the operating lever 15 does not project, and the entire nail clipper does not become bulky.

Further, according to the second aspect of the invention, when not in use, the pressing lever 15 and the blades 1 and 2 can be locked to each other. 1,2
Therefore, it is possible to reliably position and hold.

[Brief description of drawings]

1 to 6 show a first embodiment embodying the first and second inventions, FIG. 1 is a perspective view showing a usage state of a nail clipper, and FIG. 2 is a partially cutaway side view thereof. FIG. 3 is a perspective view showing a non-use state of the nail clipper, FIG. 4 is a partially cutaway side view of the same, and FIG. 5 is a partial view of FIG. The figure is an exploded perspective view of the nail clipper, FIG.
FIG. 9 shows a second embodiment, FIG. 7 is a side view showing a non-use state of a nail clipper in which the positioning means is changed by pressing, and FIG. 8 is an enlarged partial view of B of FIG. 9 is an enlarged sectional view taken along line XX of FIG. 7, FIGS. 10 to 13 show a third embodiment, and FIG. 10 is a view corresponding to FIG. 1 and FIG.
1 is a view corresponding to FIG. 2, FIG. 12 is a view corresponding to FIG. 3, and FIG. 13 is a view corresponding to FIG. 1-upper blade, 1a-blade edge, 2-lower blade, 2a-
Cutting edge, 5 ... Locking hole, 6 ... Locking recess (locking part), 7 ...
... Support frame, 8 ... Upper locking part, 9 ... Left and right side parts, 10
...... Lower side locking part, 11 …… Locking protrusion, 12 …… Support hole (rotating fulcrum part), 13 …… Opening part, 14 …… Opening, 15
...... Pressing lever, 15a ...... Front end part, 16 …… Insertion hole (insertion part), 16a …… Pressing part, 17 …… Supporting part, 18
...... Locking hook (locking part), 19 ... Locking tongue (locking part), 19a ... Small projection, 20 ... Locking recess (locking part).

Claims (2)

[Claims] 1. An upper blade body (1) and a lower blade body (2) are fixed to each other so that each of them has elasticity in a direction toward and away from each other, and the upper and lower blade bodies (1, 2) are provided with a support frame. In the nail clipper in which (7) is inserted and the pressing lever (15) is rotatably supported on the support frame (7) in the vertical direction, the support frame (7) has upper and lower blades (1, 2). Between both sides (9) corresponding to the openings (14) on both sides.
2) is formed by notching, and the pressing operation lever (15) is provided with an insertion portion (16) into which the upper blade body (1) is inserted, and upper and lower blades provided at the front end portion of the pressing operation lever (15). A support part (17) which is inserted between the bodies (1, 2) and is inserted into and removed from both pivotal fulcrums (12) of the support frame (7) and the support part (17). ) Is provided with a pressing portion (16a) that comes into contact with the upper surface of the upper blade body (1) in a state of being inserted into and supported by both rotation fulcrums (12), and a supporting structure for pressing operation in the nail clipper. . 2. An upper blade body (1) and a lower blade body (2) are fixed to each other so that each of them has elasticity toward and away from each other, and the upper and lower blade bodies (1, 2) are provided with a support frame. In the nail clipper in which (7) is inserted and the pressing lever (15) is rotatably supported on the support frame (7) in the vertical direction, the support frame (7) has upper and lower blades (1, 2). Between both sides (9) corresponding to the openings (14) on both sides.
2) is formed by notching, and the pressing operation lever (15) is provided with an insertion portion (16) into which the upper blade body (1) is inserted, and upper and lower blades provided at the front end portion of the pressing operation lever (15). A support part (17) which is inserted between the bodies (1, 2) and is inserted into and removed from both pivotal fulcrums (12) of the support frame (7) and the support part (17). ) Is provided with a pressing portion (16a) that abuts on the upper surface of the upper blade body (1) in a state of being inserted and supported by both rotation fulcrums (12), and further, the pressing lever (15) and the blade body (1) are provided. , 2) and a pair of locking parts (6, 18 or 1) corresponding to each other.
9 and 20), which is provided with positioning means for engaging the pressing lever (15) on the upper blade body (1) so as to engage with each other in a non-use state. Support structure.