JPH0316562Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is related to the improvement of lever-type nail clippers, and by making the blade inside the case slightly slidable back and forth, the nail clipper can be cut easily. This is an attempt to prevent deep nails by adjusting the length of the nail.

(Prior art) Conventional cased nail clippers are designed to prevent the cut nails from scattering, and the case only covers the top, bottom and both sides of the blade, and the case does not cover the blade part including the blade edge. The front part of the head was exposed.

(Problem that the invention aims to solve) When cutting nails, the nail is inserted between the blade edges, but if the front of the blade is exposed, the blade edge will go deep into the nail. There was a risk of deep nail damage. Therefore, this invention provides a nail clipper that can adjust the length of the nail to be cut by providing a wall-shaped protrusion in front of the blade and a mechanism that changes the distance between this protrusion and the blade. The purpose is to provide.

(Means for Solving the Problems) The configuration of the present invention to achieve the above object is that parallel blades are formed at the tips of the blade bodies 1 and 2 facing each other and are usually spaced apart by a certain distance. The means for cutting the nail by pressing the edges 5 and 6 and also for bringing the blade edges 5 and 6 into pressure contact is a rivet inserted perpendicularly to the two surfaces of the blades at the tip thereof together with the two blades 1 and 2. 1
In the nail clipper, which is a lever body 7 that is pivoted by a support shaft 11 that is perpendicular to the blade body 3, the blade bodies 1 and 2 are covered with a case 8. The distal end surface of this case 8 rises in front of the blade body 2 that is not in contact with the lever body 7. The blade bodies 1, 2 and the case 8 are arranged so that the blade bodies 1, 2 can slide back and forth by a small distance toward the inside of the case 8 from the position where the front surface of the blade body 2 contacts the front end surface of the case 8. There are blades 1 and 2 between
There is a cam mechanism for sliding back and forth.

(Example) To explain the embodiment of the present invention with reference to the drawings below, a nail clipper roughly consists of two blades (upper blade 1, lower blade 2) whose rear end back surfaces are bonded to each other. a lever 7 for pressing the blade edges 5, 6 of the blade bodies 1, 2;
It consists of a case 8 with an open top for housing the blades 1 and 2, and an eccentric circular rotary plate 9 for sliding the blades 1 and 2 back and forth within the case 8.

The two blade bodies 1 and 2 are made of elongated metal plates that are slightly curved outward, and have blade portions 3 and 4 that curve inward at their tips. Arc-shaped blade edges 5 and 6 are formed on the edges. The two blade bodies 1 and 2 are bonded to each other with their rear surfaces at their rear ends, and as a result, the two blade edges 5 and 6 face each other in parallel with a constant interval. A hole 10 is bored in the rear end portions of the double-edged blades 1 and 2, through which the shaft portion of the rotary plate 9 is inserted.

The means for bringing the blade edges 5 and 6 into pressure contact is 2.
Along with the two blade bodies 1 and 2, the support shaft 1 is perpendicular to the rivet 13 inserted perpendicularly to the two surfaces of the blade bodies at the tip thereof.
This is a lever 7 which is pivoted by 1. That is, holes 12 (the holes in the lower blade body 2 are not shown) are formed at the tips of the upper blade body 1 and the lower blade body 2, and rivets are inserted into these holes 12 from the outside of the lower blade body 2. 13 is inserted. The stud 13 has a head 14 and a round bar portion 15,
A spindle hole 16 is bored in the round bar portion 15 in a right angle direction. The tip of the inserted stud 13 penetrates to the outside of the upper blade body 1.

On the other hand, a recess 18 for inserting the tip of the stud 13 is formed in the base 17 of the lever 7, and a shaft hole 19 communicating with the shaft hole 16 of the stud 13 inserted into the recess 18 is formed in the base 17 of the lever 7. The base 17 is bored. Since the distance from the back of the head 14 of the rivet 13 to the spindle hole 15 of the rivet 13 is slightly shorter than the distance between the outer sides of the blades 1 and 2, it is difficult to attach the lever 7 to the blades 1 and 2. The distance between the blade bodies 1 and 2 must be made slightly closer. The lever 7 is inserted by inserting the spindle 11 after communicating the spindle hole 16 of the stud 13 passing through the blade bodies 1 and 2 with the spindle hole 19 of the base 17 of the lever 7.
is pivoted to the blade bodies 1 and 2. The surface of the base 17 of the lever 7 is formed into a convex shape so as to serve as a fulcrum for the lever 7.

The synthetic resin case 8 that covers the blade bodies 1 and 2 is
The lower half of the tip surfaces of the two blade bodies 1 and 2 bonded together, that is, the front of the blade part 4 of the blade body 2 that is not in contact with the lever 7, the lower surface of the blade body 2, and the blade body 1, Cover both sides and rear end of 2. The distal end surface of the case 8 rises in front of the blade body 2 that is not in contact with the lever body 7. That is, wall-shaped protrusions 21, 21 are integrally provided at the distal end of the case 8 and protrude from both sides of the distal end thereof. The protrusions 21, 21 are not formed in a series, and there is a cut 2 at the center of the protrusions 21, 21.
2 is included, and it is divided into two. This cut 22
By providing these, the protrusions 21, 21 have elasticity. This cut 22 is continuous with the lower surface of the case 8 and has a hole 2 into which the head 14 of the stud 13 is inserted.
It has become 3. Notches 24, 24 formed on both sides of the tip of the case 8 are provided to facilitate insertion of a nail between the upper and lower blade edges 5, 6.

The rear end of the case 8 has a hole 25 having the same diameter as the hole 10 provided at the rear end of the blade bodies 1 and 2,
The shaft protrusion 26 of the rotating plate 9 is inserted into the holes 10 and 25 from below the case 8. This shaft protrusion 26
has a cylindrical shape, protrudes from one side of the rotating plate 9, and has a shaft hole 27 extending vertically through the shaft protrusion 26. Although the center of the cross-sectional circle of the shaft protrusion 26 is the same as the center of the rotating plate 9, the center of the shaft hole 27 is eccentric with respect to the center of the shaft protrusion 26.
A pin 28 inserted into the hole 10 from the outside of the upper blade body 1
The latch head 29 passes through the rotating plate 9 and the rotating plate 9
The blade bodies 1 and 2 are fixed to the case 8 by hanging on the surface of the case 8.

Since the centers of the shaft protrusion 26 and the shaft hole 27 are offset, the shaft protrusion 26 has a thick wall portion 30.
and a thin portion 31. Inner thick part 3
The lengths of the blade bodies 1 and 2 are adjusted so that the blade part 4 of the blade body 2 comes into contact with the back surface of the protrusions 21 and 21 of the case 8 when the thin wall part 31 is located at the rear of the case 8 and the thin wall part 31 is located at the front. is set. Therefore, the shaft protrusion 2
The thick part 30 of 6 is connected to the thin part 31 at the front inside the case 8.
When the blades 1 and 2 are located at the rear, the blades 1 and 2 have moved a small distance inward of the case 8, and the blade portion 4 of the blade 2 has been moved from the protrusions 21 and 21 of the case 8 to the shaft hole 27. Move away by the amount of eccentricity. When the rotating plate 9 is rotated, the blade bodies 1 and 2 slide back and forth within the case 8 by a distance equivalent to the eccentricity of the shaft hole 27 from the position where the blade part 4 of the blade body 2 contacts the protrusions 21 and 21. do.
The blade bodies 1 and 2 can be stopped at any position between the sliding positions within the case.

Note that reference numeral 32 is a presser plate provided at the rear of the case 8, and the rear parts of the blades 1 and 2 are inserted under this plate to fix the blades 1 and 2 to the case 8.

(Effects of the invention) As explained above, in this invention, the tip of the case that covers the blade rises in front of the blade that is not in contact with the lever, so the front of the blade is It is possible to prevent deep nails without digging deep into the nail.

In addition, the blade inside the case can slide back and forth by a small distance from the position where the front surface of the blade touches the tip of the case toward the inside of the case, using a cam mechanism. By changing the position, the length of the nail to be cut can be adjusted.

[Brief explanation of drawings]

Figure 1...An exploded perspective view of the nail clipper, Figure 2...
A perspective view of the assembled nail clipper. 1... Upper blade body, 2... Lower blade body, 7... Lever body, 8
... Case, 9 ... Rotating plate, 11 ... Support shaft, 13
...Rivet, 21...Protrusion, 26...Shaft protrusion, 27...
...Shaft hole, 30...Thick wall portion, 31...Thin wall portion.

Claims (1)

[Scope of utility model registration request] A nail is cut by pressing parallel blade edges formed at the tips of opposing blade bodies and usually spaced a certain distance apart, and a means for pressing the blade edges is provided together with the two blade bodies. In a nail clipper, which is a lever that is pivoted at its tip by a support shaft that is perpendicular to the stud inserted perpendicularly to the blade surface, the blade is covered with a case, and the case tip surface is connected to the lever. stands up in front of the blade that is not in contact with the blade, and the blade can slide a short distance back and forth inward from the position where the front of the blade touches the case tip surface. , and a nail clipper characterized in that a cam mechanism for sliding the blade back and forth is interposed between the blade and the case.