JPS5837567Y2 - Pointillist puncher - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a pointillist punching device that forms characters, pictures, etc. by dotting on a thin metal plate.

Conventionally, this type of punching machine is known to have a structure in which the punch shaft is pulled up by the action of a hand-operated cam and dropped by the action of a spring, but this has a complicated structure and is expensive. Not only do they often break down, but they are also cumbersome to handle as the cam must be manually rotated.
There was also the problem that the pointillist position was shifted during punching.

This invention was made for the purpose of solving the above-mentioned conventional drawbacks, and its specific structure will be described in detail with reference to the drawings as follows.

That is, the pointillist punching device of this invention is equipped with a transparent main body cylinder 3 in which a rear plate enlarged part 2 is integrally provided at the lower end of a grip cylinder part 1, and a stopper 5 is provided in the center hole 4 of this main body cylinder. A punch shaft 6 whose upper limit movement is prevented is fitted so as to be movable up and down, and a hitting head cap 8 is fixed to the upper end of this punch shaft, which is slidably fitted onto the upper end protruding lower part of the main body cylinder 1. In addition, a spring 9 is provided in this cap to press the punch shaft 6 upward together with the cap 8, and furthermore, at the lower end of the punch shaft 6, when the head cap 8 is knocked down, the rear plate enlarged portion 2 is disposed. A needle method 10 is attached with a protruding length exposed from the edge of the opening.

The center hole 4 of the main body cylinder 3 is connected to a hole in the inner flange 7a on which the lower end of the spring 9 is supported, and to the main body grip cylinder 1.
A flange-shaped stopper 5 provided on the punch shaft 6 is inserted downwardly into the lower end surface of the rib plate 1a by the action of a spring 9. The upper limit movement of the punch shaft 6 is restricted.

Note that the lower limit movement of the punch shaft 6 is regulated by the lower end edge of the head cap 8 coming into contact with the lower end step of the upper end protruding lower part of the main body cylinder 3.

Therefore, the punching device of this invention constructed as described above is placed on a thin metal plate in the state shown in the figure, and the main body gripping cylindrical portion 1 is
While holding the needle in one hand and looking through the needle method section 10 from the rear plate enlarged part 2, align the needle tip with the dot position and tap the head cap 8 with the other hand to make stipples. , This operation is performed sequentially while sliding, to form dots of letters, pictures, etc. on the thin metal plate.

Since the punching device of this invention is as described above, unlike the conventional punching device that uses a cam, it has a very simple structure and can reduce costs. It is easy to handle because the pointillist operation can be performed just by tapping the button, and there is no problem of the dot position shifting during pointillism.

[Brief explanation of the drawing]

FIG. 1 is a central vertical cross-sectional view showing an embodiment of the punching device of this invention, and FIG. 2 is a cross-sectional view taken along line II--II in FIG. 1. 1...Gripping cylinder part, 2...Rear plate expansion part,
3...Body cylinder, 4...Center hole, 5.
...Stopper, 6...Punch shaft, 7...
...Body upper end protrusion, 8...Head cap, 9...Spring, 10...Needle method.

Claims (1)

[Scope of utility model registration request] A transparent main body cylinder with a rear plate enlarged opening at the lower end of the grip cylinder, a punch shaft that is fitted into the center hole of the main body cylinder so as to be movable up and down and whose upper limit movement is prevented by a stopper, and the main body. a hitting head cap that is slidably fitted onto the upper end of the cylinder and to which the upper end of the punch shaft is fixed; a spring that is provided within the cap and presses the punch shaft upward together with the cap; A pointillist punching device comprising a needle method attached to the lower end of a punch shaft.