JPS6327994Y2 - - Google Patents

Description

[Detailed description of the invention] 1. Purpose of the invention This invention relates to a punch for office use.

Conventionally, with two-hole or three-hole office punches, punch blades are installed at fixed binding width intervals of files and binders, but it is not always easy to punch holes at accurate binding positions. For,
In order to find the center of the bound paper, the center of the side of the paper was folded in advance and marked.

Therefore, an object of the present invention is to provide a highly practical punch that can easily and accurately punch holes by eliminating these drawbacks of conventional punches.

2. Structure of the invention The structure and operation of the invention will be explained with reference to the embodiments shown in the drawings.

Reference numeral 1 denotes a base, 2, 2 are cross-sectional frames installed on both sides of the base 1 with a small gap therebetween, 3 is a handle body pivotally supported on both left and right ends by a fulcrum shaft 4, 4 installed on the upper end of the front side of the left and right frames 2, 2, 3, and 5, 5 are the handle body 3.
The punch blades 8, 8 are provided at right angles to the working shafts 4, 4. The punch blades 8, 8 are provided at the bases 1 corresponding to the punch blades 8, 8. The elastic members 9, 9 are wound around the working shafts 4, 4 at their centers, with one end abutting against the inside of the handle body 3 and the other end abutting against the inside of the frames 2, 2.
Reference numerals 6, 6 denote marks or protrusions provided in a parallel position on the rear edge of the base 1 in a direction coinciding with the center lines of the punched holes 10, 10, and the distance between these left and right marks or protrusions 6, 6 is equal to the distance between binding holes a, a as specified by industrial standards.

Therefore, the number of marks or protrusions 6, 6 is two in the case of two holes, and three in the case of three holes. 7
is the bottom cover, 11, 11 are the left and right frames 2, 2.
A stopper is provided on the lower base 1, and this is used to determine the depth when a piece of paper is inserted horizontally into the space between the base 1 and the frames 2, 2. b
is a file, c is a binding pin, and d is a piece of paper to be punched.

Therefore, when punching a hole using the punch of the present invention, first punch the rear edge of the base 1 on the side opposite to the punching part on the base 1 of the device, which is farthest from the punch holes 10, 10. marks or protrusions 6,6
, the binding holes a, a or the binding pins c, c of file b.
I'll put it on. After that, a piece of paper d is inserted between the frames 2, 2 and the base 1, and is brought into contact with the stoppers 11, 11, and the handle body 3 is pressed down to punch a hole with the punch blades 8, 8. . As a result, a punch hole for binding is punched at a predetermined position on the piece of paper c.

This operation is performed in a similar manner when punching paper pieces to be bound into a binder.

3. Effects of the invention In this way, the invention consists of a frame 2, which is installed on both the left and right sides of the base 1 with a paper insertion gap on the front side.
2, a handle body 3 is installed on the base, and the punch blade bodies 8, 8 provided on both the frames are actuated by the handle body towards the punch holes 10, 10 on the base. Since this is an office punch characterized by having marks or protrusions 6, 6 on the rear edge of the base 1 in a straight line passing through the longitudinal center of the frame, the marks are marked by folding the binding paper in advance. It is now possible to punch paper strips at predetermined binding positions in files, binders, etc., very easily, accurately, and quickly, without having to attach paper strips to paper, eliminating the time-consuming handling required in the past. is completely eliminated, and good practical effects can be achieved with simple means.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is an overall plan view, FIG. 2 is a plan view of another example, FIG. 3 is a perspective view showing the example in FIG. 1 in use, and FIG. FIG. 2 is a side sectional view of the example in FIG.

Claims (1)

[Scope of utility model registration request] A handle body is installed on frames installed on both the left and right sides with a paper insertion interval on the front side of the base, and the punch blade bodies provided on both frames are directed toward the punch hole on the base by the handle body. 1. A punch for office use that operates to punch a hole, characterized in that a mark or a protrusion is provided on the rear edge of the base in a straight line passing through the punch hole and the longitudinal center of the frame.