JPS63114899A - Porous punch - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention can also be used as a punch, if necessary.

It can also be used as a twenty-six punch. It concerns a multi-hole punch.

(Prior Art) In a multi-hole punch that simultaneously punches two or more holes, each cutting edge must have a large punching force.

This is because if only one of the cutting edges fails to cut, the greater the number of cutting edges, the greater the force required. In this respect, the ring-shaped cutting blades that have been used in the past have been known to reduce the effective area of the cutting blade because when cutting multiple sheets or thick sheets of paper, the resulting chips can clog the cutting edge of the cutting blade. However, since only a certain number of sheets of paper or a certain thickness of paper could be used seriously, if the number of cutting blades was increased to make a multi-hole punch, it was practically unusable. It would be better to use a cylindrical cutting blade that allows the chips to pass through the inside of the cutting blade, but there was no such thing in the past.

(Problem to be solved by the invention) The present invention has been made in view of this point, and it has a cutting edge with excellent critical force, and furthermore, a punch with this cutting edge attached can be used for single hole punching. By combining a plurality of Okawa's punches, a multi-hole punch with significant capabilities was obtained.

(Means for Solving the Problems) As a means for solving the above-mentioned problem, the present invention provides a tool having a cylindrical cutting blade that is raised and lowered by a lever, and a blade receiving plate that receives the cutting edge of the cutting blade. A plurality of hole punches are provided, and the plurality of one-hole punches are fixed to the substrate so as to be movable and positionable relative to each other, and the levers of the plurality of one-hole punches are mounted on a single plate. It has a compact structure.

(Function) If it is configured like this, it usually has significant power. For example, it can be used as one of the three major punches, and the pitch can be changed between large distances, and can be easily disassembled and used as a one-hole punch or a 26-hole punch if necessary.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings. First, FIGS. 1 and 2 show the assembled state, and FIG. 3 shows the disassembled state. Further, FIG. 4 shows a partial cross section, and FIG. 5 shows a view from an oblique angle. In these figures, 1 is a one-hole bunch which will be described later, 2 is its lever, and 3 is a cutting edge. The cutting blade 3 has a cylindrical shape, and is designed to guide the chips after cutting the paper upward through the cutting blade 3. 4 has a base as a one-hole punch, 1
It is a piece of iron plate bent into a U-shape to form an L-shape. To explain this one-hole puncher part in detail with reference to FIG.
The tip is always urged upward by the oil spring 6. 7 is a clip attached to the shaft 5.

The cutting blade 3 is passed through a hole 8a provided in a presser plate 8, and is pressed and supported by a cutting blade presser 9. The cutting blade holder 9 is provided with a hole 10, and is attached to the lever 2 by a shaft 11 passed through the hole 10. 12 is a clip attached to the shaft 11, and 13.14 is a shaft 5 provided on the lever 2.
゜11 is a hole for passing through, 15 is a back cover of the cutting blade holder 9, 16
is the cutting blade presser 9, the presser plate 8, and! This is a bolt that integrates the 1g lid 15.

A lid 17 is attached to the back side of the upright portion of the base 4, and this portion forms a box shape (column). This box-shaped portion will accommodate the chips that have passed through the inside of the cutting blade 3. A plate 18 is attached to the upper part of the horizontal portion of the base 4 by engaging claws 20 into holes 19. Two blade receiving plates are detachably attached to the plate body 18. The blade receiving plate 21 is made of synthetic resin, and is such that it will be slightly scratched or not damaged when it receives the cutting edge of the cutting blade 3. This blade receiving plate 21
As shown in the figure, it has a circular shape and can be rotated around its center. With this, when the number of scratches caused by the cutting edge increases, you can rotate the angle slightly and use a new part. 22 is the guide plate when inserting the heavy paper. This is the one-hole punch. The structure is as shown in Figure 4 when assembled.

Next, to explain the structure of assembling the one-hole punch manufactured in this way into the three major punches, the horizontal part of the base 4 is inserted into the board 23 from below, and the bent part 24 at the tip is inserted into the board 23.
Press it against the bent portion 25 of. In this way, the blade receiving plate 21 is fitted into the elongated hole 26 of the base plate 23 from below. A screw hole 27 is provided in the bent portion 24, and an elongated hole 28 is provided in the bent portion 25 in the horizontal direction at a position that matches the screw hole 27. Then, the bolt 29 with a knob is inserted from the outside of the elongated hole 28 via the spring washer 30 and washer 31, and screwed into the screw hole 27. In addition,
In the case of the three major punches, there is no need to move the central one-hole punch, so the bolt 29a used here may not be able to be turned by hand.

32 is a scale for determining the sprouting position of the covered paper. Small holes 33 are provided in the substrate 23 side by side in the horizontal direction, so that the plate 18 can be seen from above. The substrate 23 and a part of the plate body 18 are painted in different colors, for example, black and red, so that the position of the plate body 18 with respect to the substrate 23, in other words, the one-hole bunch 1
, 1 or the pitch between the holes to be punched can be changed. After assembling in this way, a plate 34 is placed on the lever 2 from above and fixed with screws 35.

36 is a decorative board. Note that this fixing is done only for the central one-hole punch and not for the one-hole punches on both sides. In the figure, 237 is a stopper arm 38 that regulates the angle of the lever 2 when storing this multi-hole punch. 39 is a hole through which this stopper arm 37 passes, and 39 is a hole through which this stopper arm 37 passes.
This is the axis that serves as the fulcrum.

With this multi-hole punch configured in this manner, a paper sheet is inserted from above the substrate 23, the tip thereof is pressed against the upright portion of the base 4, and the plate body 34 is pushed down. As a result, the cutting blade 3 pierces and penetrates the heavy paper, and comes into contact with the blade receiving plate 21. At this time, the blade receiving plate 21 will be slightly scratched as described above, but will not be damaged. When the number of scratches increases, the blade receiving plate 21 is slightly rotated to a different location. When changing the sprouting position, loosen the bolts with knobs 29 that fix the one-hole punches 1.1 on both sides to the board 23, and while checking the color of the plate 18 through the small hole 33 of the board 23, remove the left and right ones. The hole punch 1.1 is moved in the lateral direction of the substrate 23. Then, position it and tighten the bolt with knob 29. The chips generated by the punching holes pass through the interior of the cutting blade 3 and are stored in the box-shaped portion of the base 4, as described above.

To use it as a one-hole punch, loosen the bolt with knob 29, remove it, and pull the one-hole punch 1 backward.
It will be possible to remove it from It is also possible to remove the back cover 15 with the three major punches in place, remove any cutting blade 3, and use the remaining cutting blade 3 to punch the hole.

(Effect of the invention) Since the present invention is constructed as explained above,
It is possible to easily change the sprouting position, and to obtain a multi-hole punch with a large drilling force that can be used as a one-hole punch or a two-hole punch as required. When changing the budding position by monitoring, the positioning can be done, so the pitch between the holes to be punched can be determined correctly.

[Brief explanation of the drawing]

1 and 2 are perspective views of one embodiment of the present invention;
The figure is a perspective view showing the disassembled state of the thing in Figure 1, Figure 4 is a sectional view showing a part of the cross section of Figure 1, Figure 5 is a perspective view of the one-hole punch section, and Figure 6 is an enlarged cutting edge. It is a perspective view showing an attached part. 1... Single hole bunch 2... Lever 3... Cutting blade 4... Base 18... Plate body 2
1... Blade receiving plate 23... Board 26.28... Long hole 27... Screw hole 33... Small hole 34...
board

Claims (6)

[Claims] (1) A plurality of one-hole punches each having a cylindrical cutting blade that is raised and lowered by a lever and a blade receiving plate that receives the cutting edge of the cutting blade,
The plurality of one-hole punches are fixed to the substrate in a mutually movable and positionable manner, and the levers of the plurality of one-hole punches are pressed by a single plate. Multi-hole punch. (2) The multi-hole punch according to claim 1, wherein chips cut by the cylindrical cutting blade are stored inside a column supporting the cutting blade and the lever. (3) The multi-hole punch according to claim 1, wherein the blade receiving plate for receiving the cutting edge of the cutting blade is removably attached to the main body of the one-hole punch. (4) In order to support a plurality of one-hole punches on the substrate so that they can move relative to each other, a horizontal long hole is provided in the substrate, and in the long hole,
A multi-hole punch according to claim 1, in which a blade receiving plate is positioned. (5) To position multiple one-hole punches on the board,
A multi-hole device according to claim 1, wherein a plurality of small holes are arranged in a horizontal direction on a substrate, and a portion of the one-hole punch located at the bottom of the substrate is painted in a color different from that of the substrate. punch. (6) In order to position and fix multiple one-hole punches on the board, a screw hole is carved in a part of the one-hole punch, and a long hole is formed in the board to pass the bolt that is screwed into the screw hole. A multi-hole punch according to claim 1, wherein the multi-hole punch is provided with a multi-hole punch according to claim 1.