JPH0210982Y2 - - Google Patents

Description

[Detailed description of the invention] Purpose of the invention (industrial application field) This invention is a scissors manufactured by forging, such as kitchen shears, pruning shears, lashing shears, pinking shears, etc. This relates to the structure of the finger rest.

(Prior Art) In general, kitchen scissors manufactured by forging are manufactured by the outer periphery of the scissor piece 20 and the finger hook 2 of the handle 21 by the mating surfaces of the forging die, as shown in FIG.
2. The burrs B1 and B2 protrude from the inner periphery, and such protrusion of the burrs B1 and B2 cannot be avoided. Therefore,
Conventionally, most of the burrs B1 and B2 were first removed using a press, and then the remaining burrs B1 and B
2 was being ground using an automatic polishing machine. However, although the burr B1 protruding from the outer circumference of the scissor piece 20 can be relatively easily ground by automatic polishing, it is very difficult to grind the burr B2 protruding from the inner circumference of the finger hook part 22 by an automatic polishing device. However, even if an automatic polishing device were to be used, it would require very expensive equipment and the polishing would have to be done manually. In this case, a small-diameter rotary abrasive member is rotated by a motor, and is inserted into the finger hook 22 to grind the burr B2 on the inner circumference thereof.

Conventionally, as shown in FIG. 5, a technique for attaching a finger ring 31 made of synthetic resin and having a concave cross-section thicker than the plate thickness of the finger rest 30 has been applied to scissors manufactured by punching out a metal plate such as stainless steel. Already known.

(Problem to be solved by the invention) However, if the burr B as in the conventional example shown in FIG.
2 manually, which not only increases the cost, but also causes problems in that the finish becomes uneven and the appearance deteriorates.

Further, as shown in FIG. 5, in the case where a finger ring 31 is provided in the finger hook part 30 of scissors formed by punching out a metal plate such as stainless steel, the finger hook part 30 and the finger ring 31 are A step D was created between them. Therefore, the finger rest 30
The surface of the finger rest 30 is not smooth, and when inserting a finger, the finger hits this step D and cannot be smoothly inserted into the finger rest part 30, and the design is also undesirable.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a protrusion on the inner periphery of the finger hook part of the forged scissors,
A finger ring made of plastic and having a concave cross section is fitted to the protrusion, and in this fitted state, the abutting portions of the outer surface of the finger ring and the outer surface of the finger ring are flush with each other. It is composed of

(Function) In the scissors configured as described above, the abutting portions between the outer surface of the finger hook and the outer surface of the finger hook are flush with each other, and the surface of the finger hook becomes smooth.

(Example) Hereinafter, an example in which the present invention is embodied in kitchen scissors will be described in detail with reference to FIGS. 1 to 3.

Reference numeral 1 denotes a pair of scissor pieces formed by forging, each consisting of a blade part 2 and a handle part 3 connected to the blade part 2, which are connected to each other in the center by a shaft 4 so as to be openable and closable. There is.

Reference numeral 5 denotes an elongated finger rest integrally formed with each handle 3, into which a finger ring 6 made of plastic and having a concave cross section is fitted inside. As shown in FIGS. 1 and 3, reference numeral 7 denotes a protrusion formed over the entire inner circumferential surface 5a at approximately the center of the finger rest 5 in the thickness direction (vertical direction in FIG. 1). The finger ring 6 is fitted into the inner periphery of the finger rest 5 by being fitted into the recess 6a extending over the entire outer periphery of the finger ring 6.

Note that 8 is a finger insertion hole in each finger ring 6;
are ginkgo nut splitting parts formed on the inside of both scissor pieces 1 for splitting ginkgo nuts, etc.

Now, when using the scissors configured as described above, insert the thumb into the finger insertion hole 8 of one finger rest part 5, and insert the index finger, middle finger, etc. into the finger insertion hole 8 of the other finger rest part 5. do. When inserting a finger in this manner, in this embodiment, as shown in FIG. There is no difference in level as in the conventional case, and the outer surface 5b of the finger rest part 5 and the outer surface 6b of the finger rest ring 6 are flush with each other. Therefore, the surface of the finger rest 5 becomes smooth, allowing the finger to be inserted smoothly, and is also favorable in terms of design.

Further, the finger rest part 5 and the finger ring 6 are firmly fitted together by the engagement between the protrusion 7 on the inner periphery of the finger rest part 5 and the recess 6a on the outer periphery of the finger ring 6, so that the finger rest ring 6 is firmly fitted to the finger ring 6. It will not easily come off from part 5. Since the kitchen scissors of this embodiment are forged scissors, the protrusions 7 on the inner periphery of the finger hook 5 can be formed more easily than scissors manufactured by punching out a metal plate.

Furthermore, when the scissor piece 1 is manufactured, burrs appear on the inner periphery of the protruding rim 7, but if the finger hook ring 6 is fitted to the inner periphery of the finger holder 5 in this way, the burr on the inner periphery of the ridge 7 can be eliminated. It is only necessary to remove it with a press, and there is no need to perform grinding with a polishing device. Therefore, not only can manufacturing costs be kept low, but also the appearance of the handle portion 3 can be improved.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but may be modified as follows.

For example, the protrusion 7 formed on the inner surface of the finger rest 5 does not need to be formed on the entire inner circumferential surface 5a of the finger rest 5, and may be formed partially in the shape of a protrusion. Furthermore, the present invention is applicable not only to kitchen shears, but also to the structure of the finger hook of other forged shears such as pruning shears, lashing shears, and pinking shears.

Effects of the invention As detailed above, the present invention not only allows the finger to be smoothly inserted into the finger rest and has a good appearance, but also eliminates the trouble of grinding the burrs on the inner circumference of the finger rest that occur during forging. This has the effect of keeping manufacturing costs low.

[Brief explanation of the drawing]

Fig. 1 is an enlarged cross-sectional view of the handle showing a state in which the finger ring is fitted to the finger ring in an embodiment of the present invention as kitchen scissors, and Fig. 2 is a front view of the kitchen scissors. Fig. 3 is a front view showing the finger hook without the finger ring fitted, Fig. 4 is a front view showing the scissor pieces of the conventional forged scissors in an unpolished state, and Fig. 5 is the same conventional scissor piece. FIG. 3 is an enlarged cross-sectional view showing the handle of. Finger rest portion...5, Outer surface...5b, Finger ring...
...6, outer surface...6b, protrusion...7.

Claims (1)

[Claims for Utility Model Registration] 1. A protrusion 7 is provided on the inner periphery of the finger hook 5 of the forged scissors, and a finger hook ring 6 made of plastic and having a concave cross section is fitted to the protrusion 7. In the fitted state, the outer surface 5b of the finger rest 5
A structure of a finger hook in forged scissors, characterized in that a contact portion between the finger hook ring 6 and the outer surface 6b of the finger hook ring 6 is configured to be flush and continuous with each other. 2. Claims for registration of a utility model characterized in that the protrusion is a protrusion 7 continuously formed over the entire inner peripheral surface 5a of the finger rest 5 or a protrusion partially formed. Structure of the finger hook in the forged scissors described in item 1.