JPH01212506A - Support structure for press control lever for nail clipper - Google Patents

Abstract

PURPOSE:To reduce the number of parts and to simplify structure, by a method wherein upper and lower blade bodies are engaged with an engaging recessed part through press control of the blade bodies, the support protrusion of a press control lever is engaged with the support recessed part of the lower blade body, and the press control level is supported to the upper and lower blade bodies. CONSTITUTION:Upper and lower blade bodies 1 and 2 are secured at their rear end parts to each other, and resiliency in a direction in which the blade bodies approach and separated from each other is provided to each of the blade bodies. Support recessed parts 3 are formed in side edges on both sides of the under surface in the vicinity of a cutting edge 2a of the lower blade body 2. In a support part 4a of a press control level 4, support arm parts 6a are protruded from the front end parts of plate parts 6 on both sides, a lock recessed part 7 is formed between the support arm part and a front end 5a of an upper plate part 5, and support protrusions 8 are formed on the tips of the two support arm parts 6a in a manner that they are bent to form opposing parts. The front end parts of the upper and lower blade bodies 1 and 2 are engagedly inserted in the respective lock recessed parts 7 of the press control lever 4, and support protrusions 8 of the two support arm parts 6a on both sides are engaged internally of two support recessed parts 3 on both sides from a position below the lower blade body 2. This engagement forms the rotating fulcrum part of the press control lever 4.

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 spindle is usually rotatably inserted through both the upper and lower blade bodies, and the lower end of this spindle is locked to the lower blade body.
At the same time, a pressing lever is supported by a connecting pin at the upper end of the support shaft on the upper blade body so as to be rotatable in the vertical direction.

However, the nail clipper with this structure 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 parts are formed to which the double blade bodies are pressed together by their elastic force, and locking holes and locking protrusions are provided so that the upper and lower locking parts of the support frame and the upper and lower blade bodies easily engage with each other. 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. 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 is placed on the upper blade body. It is possible to position it in an unused state overlapping the

(Problem to be Solved by the Invention) However, since the front end of the pressing lever is constantly pressed against the upper locking part of the support frame due to the elastic force of the upper blade, when the pressing lever is slid, the There is a problem in that frictional resistance occurs between the front end and the upper locking portion of the upper blade body and the support frame, making it difficult to perform a 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. Push the lower blade to the side 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, pinch the front end of the pressing lever between them. The assembly of the press-operated lever was troublesome.

The object of the invention as set forth in claim 1 is to eliminate the support frame and form locking recesses for the upper and lower blade bodies directly on the pressing operation lever, thereby reducing the number of parts and simplifying the structure. The object is to facilitate the assembly of a pressing operation lever to the upper and lower blade bodies.

゛An object of the invention stated in claim 21 is, in addition to the object of the invention stated in claim 1, to prevent the upper and lower blade bodies from coming off from the locking recess of the press operation lever during use. The goal is to prevent them from leaving.

Kojimei's composition (means for solving one problem) □'First! ! The invention described in Item I, as shown in Figures 1 to 7 of the drawings of the embodiment described later, has an upper blade body 1 and a lower blade body 2 that are fixed to each other and moved closer to each other and separated from each other. In a nail clipper in which a push lever 4 is supported on the upper blade body 1 so as to be movable in the vertical direction by its support portion 4a, the push lever 4 has elasticity in the direction. Both supporting arm portions 6a are provided protrudingly, and a locking recess 7 into which the upper and lower blade bodies 1.2 are inserted is formed between the supporting arm portions 6a. 8, and the lower blade body 2 is formed with a support recess 3 in which both of the support protrusions 8 engage, and the engagement between the support protrusion 8 and the support recess 3 serves as a pivot point for the pressing operation lever 4. It was established as a department.

In the invention described in claim 21, as shown in Figures 1 to 7 and Figures 8 to 10 of the drawings of the embodiments to be described later, the upper blade body 1 and the lower blade body 2 are connected to each other. In the nail clipper, each of the levers has elasticity in the direction of approaching and separating, and the pressing operation lever 4 is supported on the upper blade body 1 so as to be rotatable in the vertical direction by its support portion 4a. A locking recess 7 into which the upper and lower blade bodies 1.2 are inserted is provided in the support portion 4a of the blade 4 by pressing operation.
．． 15, and rotation fulcrum portions 3.8 and 14.16 that engage with each other are provided between the support portion 4a and the lower blade body 2,
Furthermore, a locking portion 9.10 is provided between the support portion 4a and the upper blade body 1 and is movable relative to each other as the pressing operation lever 4 rotates.
It has been established.

(Function) In the invention described in the first claim, when the pressing operation lever 4 is pressed downward during use, the pressing operation lever 4 rotates around the rotation fulcrum parts 3 and 8, and the pressing operation lever 4 The upper blade body 1 is pressed downward. As a result, the upper blade body 1 approaches the lower blade body 2, and the cutting edges 1a and 2a of the upper and lower blade bodies 1 and 2 come into contact with each other. On the other hand, when the pressing operation lever 4 is released, the pressing operation lever 4 is lifted by the elastic force of the upper and lower blade bodies 1.2 and rotates upward around the rotation fulcrum parts 3 and 8, returning to its original state. Return to

In the invention described in the second claim, when the pressing operation lever 4 is pressed downward during use, the pressing operation lever 4 rotates around the rotation fulcrum part 3.8.14. 4
The upper blade body 1 is pressed downward. As a result, the upper blade body 1 approaches the lower blade body 2, and the cutting edges 1a and 2a of the upper and lower blade bodies 1 and 2 come into contact with each other. On the other hand, when the pressing lever 4 is released, the pressing lever 4 is lifted by the elastic force of the upper and lower blade bodies 1.2, and the rotating fulcrum portion 3.8.14°16
Rotate upwards around the center and return to the original state.

Especially when the pressing operation lever 4 is rotated, the locking part 9 of the pressing operation lever 4
and the locking part 10 of the upper blade body 1 move relative to each other, but when the blade 4 is lifted above a certain level by the pressing operation, both the locking parts 9 and 10 move.
are engaged with each other to prevent the saw 4 from rotating upward by the pressing operation.

(First Embodiment) First, a first embodiment of the present invention will be described according to FIGS. 1 to 7.

As shown in FIG. 7, the upper blade body 1 and the lower blade body 2 are fixed to each other at their rear ends, and each has elasticity in the direction of moving toward and away from each other. The front end of the upper and lower blade bodies 1.2 has a cutting edge 1a.
, 2a are formed facing each other. Cutting edge 2 of lower blade body 2
Support recesses 3 are formed on both left and right edges of the lower surface of the lower blade body 2 near a.

The pressing lever 4 includes an upper plate portion 5 and left and right side plate portions 6, and a support portion 4a is formed at the front end of the pressing lever 4. In this support part 4a, support arm parts 6a are provided protrudingly from the front ends of the left and right side plate parts 6, and a locking recess 7 is formed between both support arms 6a and the front end 5a of the upper plate part 5. ing. Support protrusions 8 are bent at the tips of both support arms 6a so as to face each other.

In particular, a locking protrusion 9 is formed on the front end 5a of the upper plate portion 5, and a locking hole 10 is formed in the upper blade body 1 near the cutting edge 1a.

As shown in FIG. 1.2, the front ends of the upper and lower blade bodies 1 and 2 are inserted into the locking recess 7 of the pressing operation lever 4, and the support protrusions 8 of the left and right side plate parts 6a are inserted into the locking recess 7 of the pressing operation lever 4. The upper blade body 1 is engaged with the left and right side plate portions 3 from below, and the locking protrusion 9 of the pressing operation lever 4 is engaged with the locking hole 10 from the upper side of the upper blade body 1. Note that the engagement between the support recess 3 and the support protrusion 8 constitutes a rotation fulcrum of the pressing operation lever 4.

A pressing member 11 is attached within the lever 4 for pressing operation. This pressing member 11 is made by bending a bar with a circular cross section into a substantially U-shape, and its both ends 11a are rotatably supported by the left and right side plate portions 6 of the pressing operation lever 4, and the pressing member 11 is The lever 4 can be superimposed on the lower side of the upper plate portion 5. In addition, locking recesses 12 are cut out on both left and right edges of the rear end of the lower blade body 2, and small protrusions 13 are formed on the inside of the rear end of the left and right side plate portions 6 of this 4 by pressing operation. ing.

Now, when the pressing member 11 is superimposed on the front lower surface of the upper plate part 5 of the pressing operation lever 4 during use, the pressing operation lever 4 is placed on the upper blade body 1 and the pressing member 11 It is supported by and stands diagonally upward. When the lever 4 is pressed downward by this pressing operation, the pressing lever 4 rotates downward around the rotation fulcrum parts 3 and 8, and the locking protrusion 9 of the pressing lever 4 locks into the upper blade. While moving through the locking hole 10 of the body 1, the upper blade body 1 is pushed by the pressing member 11 and deflects downward, so that the upper and lower blade edges 1a and 2a come into contact with each other.

On the other hand, when not in use, as shown in FIGS. 3 and 4, with the pressing member 1 superimposed on the rear lower surface of the upper plate portion 5 of the pressing lever 4, the pressing lever 4 is pushed downward. When the upper and lower double blade bodies 1 and 2 are housed in the pressing operation lever 4, the upper and lower double blade bodies 1.2 are inserted between the left and right side plate portions 6 of the lever 4 by the pressing operation as shown in FIGS. 5 and 6. The small protrusions 13 on both side plate parts 6 are engaged in both locking recesses 12 of the lower blade unit 2 due to their elasticity, and the upper blade body 1 is pushed into the front end of the upper plate part 5 of the pressing operation lever 4. Pushed downward by 5a, both upper and lower cutting edges 1'
a and 2a approach. Also, when in use, lift the rear end of the pressing lever 4 and insert the small protrusions 13 on the left and right side plates 6 into the lower blade body 2.
Remove it from both locking recesses 12 and release the lever 4 by pressing.
Due to the elastic force of the upper and lower blades 1.2, the pressing lever 4 is lifted up via the front end 5a of the upper plate portion 5 and rotated upward about the rotation fulcrum portion 3.8, and then the pressing member 11
When rotated, the operating state shown in FIGS. 1 and 2 can be achieved.

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, by simply inserting the upper and lower blade bodies 1.2 into the locking recesses 7 of the pressing operation lever 4 and engaging the support protrusions 8 of the pressing operation lever 4 into the support recesses 3 of the lower blade body 2. Since the pressing operation lever 4 can be supported on the upper and lower blade bodies 1 and 2, their assembly becomes very easy.

Furthermore, since the locking protrusion 9 of the pressing operation lever 4 is engaged with the locking hole 10 of the upper blade body 1, when the pressing operation lever 4 is lifted diagonally upward on the upper blade body 1 during use, the pressing The rotation of the operating lever 4 is blocked by the engagement between the locking protrusion 9 and the locking hole 10, so that the lever 4 does not rise above a certain level during the pressing operation, and the upper and lower blade bodies 1 and 2 lock the pressing operating lever 4. Inadvertent coming out of the recess 7 can be prevented.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. 8 to 10.

In the first embodiment, both support recesses 3 are formed in the lower blade body 2, but in this second embodiment, a support hole 14 is formed in the lower blade body 2 instead of these support recesses 3. ing.

Further, in the support part 4a of the pressing operation lever 4 according to the second embodiment, a rectangular locking hole 15 is transparently provided in the upper plate part 5, and both upper and lower locking edges 15a of this locking hole 15 are provided. , 15b, a support projection 16 is formed on the lower locking edge 15b, and a locking projection 9 is formed on the upper locking edge 15a. The front end of the body 1.2 is inserted into the upper and lower locks 1i15a of the locking hole 15.
, 15b, the upper and lower blade bodies 1.2 are pressed against each other by their elastic force. The support projection 16i is engaged in the support hole 14 of the lower blade body 2 from the lower side, and the locking projection 9 is engaged in the locking hole 10' from the upper side of the upper blade body i. The rotation fulcrum of the pressing operation lever 4 is determined by the engagement of the support hole 14' and the support protrusion 16.

Now, when the lever 4 is pressed downward during use, the lever 4 rotates downward about the pivot point 14, 16, and the locking lever 9 of the lever 4 is rotated downward. While moving through the locking hole 10 of the upper blade body 1, the upper corner 1 is pressed toward the lower gear by the main locking edge 15cr of the locking hole 15 of the pressing operation lever 4. Does this mean that the pressing operation lever 4 is locked? L1
The upper blade body 1 approaches the lower blade body 2 supported on the lower locking edge 15b of the blade 5, and the cutting edges 1a and 2a of the upper and lower blade bodies 1 and 2 come into contact with each other. On the other hand, when the pressing lever 4 is released, the pressing lever 4 is lifted up via its upper locking edge 15a by the elastic force of the upper and lower blade bodies 1.2, and the rotation fulcrum portion 1
4. Rotate upwards around 16 and return to the original state.

In this second embodiment, as in the case of the first embodiment, the number of parts is reduced and the structure is simplified.
The pressing operation on the upper and lower blades 1 and 2 makes it very easy to assemble this 4. Roughly speaking, during use, the pressing operation will prevent the upper and lower blades 1. It can prevent it from coming off.

Effects of the Invention According to the invention described in claim 1M, since there is no support frame unlike the prior art, the number of parts is reduced and the structure is easily gripped. Also, the locking recess 7 of the lever 4 that presses the upper and lower blade bodies 1 and 2
Insert the lever 4 into the support recess 3 of the lower blade body 2.
The blade 4 can be supported by pressing the upper and lower blade bodies 1.2 by a simple operation of engaging the support protrusion 8 of the blade 1.2, thereby making it very easy to assemble them.

According to the invention described in the second claim, since there is no support frame unlike the prior art, the number of parts is reduced and the structure is simplified. Also, the locking recess 7 of the lever 4 that presses the upper and lower blade bodies 1 and 2
, 15 and engage the rotational fulcrum parts 8, 16 of the pressing operation lever 4 into the rotational fulcrum parts 3, 14 of the lower blade body 2, the upper and lower blade bodies 1, 2 can be attached to the upper and lower blade bodies 1, 2. Opposite pressure operation lever 4
can be supported, making their assembly very easy.

In particular, the locking portion 9 of the pressing operation lever 4 and the locking portion 1 of the upper blade body 1
0, the pressing operation lever 4 does not rotate upward beyond a certain level, so the upper and lower blade bodies 1, 2 will not come out inadvertently from the locking recesses 7, 15 of the pressing operation lever 4, and the pressing operation lever 4 will not rotate upward beyond a certain level. It is possible to prevent the operating lever 4 from separating from the upper and lower blade bodies 1 and 2.

[Brief explanation of the drawing]

Figures 1 to 7 show a first embodiment of the present invention. Figure 1 is a perspective view of the assembly of the nail clipper in use, Figure 2 is a partially cutaway side view, and Figure 3 is a partially cutaway side view. The assembly of the nail clipper when not in use is a perspective view, and Figure 4 is a partially cutaway side view.
Fig. 5 is a bottom view, Fig. 6 is an enlarged sectional view taken along the line X-X of Fig. 4, Fig. 7 is an exploded perspective view of the nail clipper, and Figs. 8 to 10.
The figures show a second embodiment of the present invention, and FIG. 8 is a perspective view showing the assembly of the nail clipper, FIG. 9 is a sectional view showing the same assembly, and FIG. 10 is an exploded perspective view. 1... Upper blade body, 2... Lower blade body, 3... Support recess,
4...Press operation lever, 4a...Support part, 6a...
Support arm portion, 7... Locking recess, 8... Support protrusion, 9...
...Latching protrusion (locking part), 10...Latching hole (locking part)
, 11... Pressing member, 14... Support hole, 15...
Locking hole (locking recess), 15a... Upper locking edge, 16.
...Support protrusion. Patent applicant Kaiin Knife Development Center Representative Patent attorney On 1) Hironobu Figure 7 Figure 9

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 the upper blade body (
1) In a nail clipper in which a press operation lever (4) is supported vertically rotatably by its support part (4a), the support part (4a) of the press operation lever (4) has both support arms. A locking recess (7) into which the upper and lower blade bodies (1, 2) are inserted is formed between the support arms (6a), and a locking recess (7) is formed between the support arms (6a). ) is formed with a support protrusion (8), and the lower blade body (2) is formed with both support protrusions (
8) is formed with a support recess (3) that engages with the support projection (8), and the engagement between the support protrusion (8) and the support recess (3) serves as a rotation fulcrum of the pressing operation lever (4). A support structure for a pressure lever in a nail clipper. 2. The upper blade body (1) and the lower blade body (2) are fixed to each other so that each has elasticity in the direction of approaching and separating, and this upper blade body (
1) In a nail clipper in which a press operation lever (4) is supported vertically rotatably by its support part (4a), the support part (4a) of the press operation lever (4) has the upper and lower double blades. A locking recess (7, 15) into which the blades (1, 2) are inserted is formed, and a rotation fulcrum part (3) that engages with each other is formed between the support part (4a) and the lower blade (2). , 8, 14, 16), and furthermore, a locking portion (9) is provided between the support portion (4a) and the upper blade body (1), which is movable relative to each other as the pressing operation lever (4) rotates. , 10) A support structure for a pressing operation lever in a nail clipper, characterized in that it is provided with: