JPS5939037Y2 - punch - Google Patents

Description

[Detailed description of the invention] This invention is a punch used for office work that punches a large number of holes at predetermined intervals by combining it with a plate separately provided for holding or placing paper to be perforated. This invention relates to a punch that allows easy drilling.

Loose-leaf notebooks or binders are designed specifically for use with pre-perforated notes.

Therefore, for limited applications this does not cause any inconvenience, but sometimes it may be necessary to bind sheets that are not perforated.

In this case, it becomes necessary to make holes that fit the metal fittings of the loose-leaf notebook or binder.

Therefore, the present applicant has developed a method in which: - a sheet of paper to be perforated is held or placed on a plate having a concave or convex portion on the edge thereof, and a punch having a convex or concave portion that fits into the concave or convex portion of the plate; We are developing a device that perforates perforated paper using this method.

The present invention is an improvement of the punch used in this type of hole-drilling jig.

Next, one embodiment of the present invention will be explained with reference to FIG.
is a punch for one hole.

This punch 1 has a lever 4 pivoted by a shaft 5 on a base 3 having a groove 2 in the front for inserting a paper to be punched (not shown).

A perforating blade (not shown) is pivotally attached to the lever 4 via a shaft 6, and moves up and down together with the lever 4 to perforate the paper to be perforated inserted into the groove 2.

FIGS. 2 to 4 show an attacher 7 that is detachably attached to the groove 2 of the punch 1.

As shown in these figures, the adapter 7 has a U-shape, is made of synthetic resin, and has appropriate elasticity.

The adapter 7 is inserted into the groove 2 of the punch 1 and held by sandwiching the base 3 of the punch 1 between the legs 7a and 7b on both sides.

This adapter 7 has a concave part or a convex part in the plate body, which will be described later. The one in FIG. 2 has a convex part 7c in the center, the one in FIG. In FIG. 4, a recess 7d is provided in the center.

What is shown in FIG. 5 is another embodiment of the present invention.

In this case, the attacher 7, which is approximately rectangular and has a convex portion 7c formed at its front end, is pushed into the groove 2 of the punch 1 and attached.

In this figure, the symbol 8 is a perforating blade (not shown).
is a hole in the base 3 through which it passes.

What is shown in FIGS. 6 and 7 is yet another embodiment of the present invention.

In this case, the adapter 1 is attached to the base 3 using the screw member 9.
It is designed to be attached to.

That is, the threaded portion 10 of the threaded member 9 is passed through the hole 11 provided in the base 3, and is screwed into the threaded hole 7e of the adapter 7 to fix the adapter 1.

At this time, by forming the hole 11 into a long hole, the adapter 7 can be moved in the longitudinal direction of the base 3 (see FIG. 7).

This punch thus constructed is used as follows.

That is, in FIG. 8, reference numeral 12 denotes a plate that holds the paper 13 to be perforated.

Recesses 14, 14, . . . are arranged side by side on one edge of the plate body 12, and holes 15, 15°, .

The holes 151, 15, . . . are slightly larger in diameter than the punching blade of the punch 1.

The punch 1 inserts the perforated paper 13 into the groove 2 while sandwiching it in this manner, and at this time, the convex IC of the attacher 7 is engaged with the concave part 14 of the plate 12.

As a result, the perforation position of the perforated paper 13 is determined.

In this state, when the punch 1 is operated while the convex portion 7c is sequentially moved from the concave portion 14 at the end to the adjacent concave portion 14 and engaged,
As shown in FIG. 9, a perforated paper 13 with holes 16° 1G, . . . formed on one edge is produced.

This allows it to be bound into loose-leaf notebooks or baingu.

Among the adapters 1, those shown in FIGS. 2, 3, and 5 can be used in almost the same way, and the ones shown in FIGS. 6 and 7 can be used from the edge of the perforated paper 13 to the hole 16. It is possible to change the distance.

Furthermore, the one shown in FIG. 4 is used when a convex portion is formed on the plate 12 side.

Since the present invention is constructed as described above, it has the advantage of being able to correctly perforate a non-perforated paper at a predetermined position.

Also, if you remove the adapter, you can use it as a regular punch.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the punch used to carry out the present invention;
4 are perspective views of an adapter attached to the punch of FIG. 1, FIG. 5 is a perspective view of main parts of another embodiment of the present invention, and FIGS. 6 and 7 are still other embodiments of the present invention. FIG. 8 is a perspective view of the main part of the example, FIG. 8 is a perspective view 1 showing the state of use, and FIG. 9 is a front view showing a part of the perforated paper. 1...Punch, 2...Groove, 3...
...Base, I...Adapter, Tc...
・Convex portion, 7d, 14... Concave portion, 9...
Screw member, 11... Hole, 12... Plate, 13... Paper to be perforated, 15, 16...
Hole.

Claims (5)

[Scope of utility model registration request] (1) - The paper to be perforated is held or placed on a plate with a concave or convex portion formed on the edge, and a punch having a convex or concave portion that fits into the concave or convex portion of the plate is used. A device for perforating paper to be perforated, characterized in that an adapter is provided in which a convex portion or a recess is formed as a part of the punch side, and the adapter is installed in a groove of the punch that sandwiches the paper to be perforated. Punch to do. (2) Utility Model Registration In the punch described in claim 1, the adapter is attached to the punch by fitting using the elasticity of the adapter. (3) Utility Model Registration In the punch described in claim 1, the adapter is attached to the punch by pushing the adapter into the groove of the punch. (4) Scope of Utility Model Registration In the punch described in claim 1, the adapter is attached to the punch by fastening with a separately provided screw member. (5) Utility Model Registration In the punch described in claim 4, the insertion hole of the screw member provided in the adapter is made into a long hole, thereby making the adapter movable in the front and back direction.