JPS5854060Y2 - scissors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in scissors, and more particularly to scissors in which a grip member provided on a grip portion is rotatable.

Conventionally, well-known scissors have a blade body with a gripping portion having a hole at the bottom and a cutting edge formed on one side of the base from the center to the tip.
They are made into a pair so that their back surfaces overlap each other, and are pivotally supported by pins.

To operate the scissors, one inserts one's fingers into each hole provided in the pair of blades, causes the opening and closing movements of the fingers to follow the cutting blades, and shears the object held between the cutting blades. However, if we consider the human finger that is inserted into a hole from an anatomical point of view, the cross-sectional shape of the human finger is approximately oval, and the thumb that is inserted into one hole and the thumb that is inserted into the other hole, for example. Since the middle fingers were opened and closed with their ventral sides facing each other to operate the scissors, they had the following drawbacks. For example, as shown in Fig. However, the hole 20
If the outer circumference of the finger A of a human being inserted into the hole 201 is clearly that of a dog, after inserting the finger A into the hole 201, the cutting blade 30 of the scissors is inserted.
1 in the opening direction, the dorsal side of the finger A came into contact with the outer half of the inner peripheral edge of the hole 201, a part of which supported the hole 201 and absorbed the working pressure.

Further, when the cutting blade 301 is operated in the closing direction, the ventral side of the finger A comes into contact with the inner half of the inner peripheral edge of the hole 201, and a part of it contacts the inner half of the inner peripheral edge of the hole 201.
It supported the 01 and absorbed the working pressure.

If scissors having such a hole 201 are used for a long time, the fingers may feel pain due to the contact as described above.

Further, as shown in FIG. 2, the diameter of the hole 202 of the scissors is
If the width of the finger A is slightly larger than the longest section of the finger A to be inserted into the hole 202, insert the finger A into the hole 202 and cut the cutting edge 301.
When operating in the opening direction, both side parts corresponding to the longest section of the finger A contact the inner peripheral edge of the hole 202, support the hole 202, and absorb the working pressure.

This is the same when the cutting blade 301 is operated in the closing direction, and when the cutting blade 301 is operated in the closing direction, both sides of the finger A support the hole 202 and absorb the working pressure.

When scissors having such a hole 202 is used for a long time, the side part of the finger A is always in contact with the inner circumferential wall of the hole 202, so friction may occur and the finger A may feel itchy.

The present invention was devised in view of the above-mentioned disadvantages of the conventional methods, and its purpose is to make the grip member provided on the grip of the scissors rotatable, so that the cutting blade can be kept in the expanded state. Regardless of the situation, the grip member always maintains a condition convenient for the fingers, and the purpose is to provide scissors that do not cause pain even when used for a long time.

Embodiments of the present invention will be described below with reference to FIGS. 3 to 5.

In FIG. 3, reference numeral 1 denotes a blade body, and a grip part 2 with a circular hole 203 is provided at its lower part, and a base part 3 with a cutting edge 301 formed on one side is provided from the center to the tip. ing.

Reference numeral 4 denotes a pin that pivotally supports the pair of blade bodies 1 so as to be capable of scissoring movement.

Reference numeral 5 denotes a hole 20 bored in the grip portion 2 on its outer periphery.
This is a grip member having an outer peripheral edge 502 having a U-shaped cross section that is rotatably engaged with the gripper 3, and an elliptical grip hole 501 similar to the shape of a finger is bored in the inner periphery of the outer peripheral edge 502.

The present invention has the above-mentioned configuration, and when using such scissors, insert fingers A into the grip holes 501, grip the scissors, and move the cutting blades 301 outward in order to grasp the object. When the inner circumferential edge of the grip hole 501 is expanded, the inner circumferential edge of the grip hole 501 has an elliptical shape similar to the outer circumferential shape of the finger. As a result, the dorsal side of finger A contacts the outer half of the inner periphery of the clip hole 501 approximately evenly, and the feeling of pressure applied to finger A is distributed to the outer half of the inner periphery of the grip hole 501.

Furthermore, since the grip member 5 is rotatably provided with respect to the grip part 2, even if the degree of expansion of the cutting blade 301 changes, the grip member 5 does not work together, and no matter what type of cutting blade 301 Even in the expanded state, the scissors can always be kept at an angle convenient for the fingers of the person using them.

This also applies when the scissor cutting blade 301 is operated in the closing direction, and when the cutting blade 301 is operated in the closing direction, the pressure generated by the contact between the abdomen of the finger A and the inner peripheral edge of the grip hole 501. Since the feeling is uniformly distributed in the inner half of the inner wall of the grip hole 501, there is almost no impact, and the angle of the grip member 5 is the same as above, so that it always matches the angle of the fingers of the person using the scissors. You can operate the scissors while maintaining a convenient angle.

Therefore, even if such scissors are used for a long time, they have the advantage of not causing any pain or itching in the fingers.

Incidentally, in order to make the rotation of the grip member smoother, a ball bearing or the like may be provided between the outer periphery of the grip member and the inner periphery of the hole in the gripping portion, but this does not change the gist of the present invention in any way.

Furthermore, in this embodiment, a case has been described in which the shape of the grip hole formed in the grip member is oval, but the present invention is not limited to this, and the grip member can move together with the fingers. Even if the grip hole has a non-perfect circular shape, it does not change the gist in any way.

As mentioned above, the present invention has very practical effects.

[Brief explanation of the drawing]

1 and 2 are front views of conventional scissors. FIG. 3 is a front view of the scissors of the present invention with the cutting blades closed. FIG. 4 is a sectional view taken along line XX in FIG. 3. FIG. 5 is a front view of the cutting blade of the present invention in an open state. 1... Blade body, 2... Gripping part, 20L2
02゜203...hole, 3...base, 3
01... Cutting blade, 4... Pin, 5...
...Grip member, 501...Grip hole,
502...Outer periphery.

Claims (2)

[Scope of utility model registration request] (1) A pair of scissors having a base with a cutting edge on one side in the upper part and a gripping part with a hole in the lower part, the outer periphery of which is loose with the inner periphery of the hole. 1. A pair of scissors, characterized in that a grip member having a non-circular grip hole in the center thereof is rotatably provided with respect to the grip portion. (2) The scissors according to claim 1, wherein the inner peripheral edge of the grip hole is oval-shaped.