JPH0448955Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a large-sized office punch that can be constructed from a plurality of punch units.

(Prior Art) A large punch that punches many sheets of paper with one handle operation has a large handle 1 as shown in Fig. 4, and an upright part under which a punch blade 2 is installed. 3 is provided. Below the standing portion 3 is a plate 4 on which the paper to be perforated is placed, and below the plate 4 is a solid base 5 that receives the force of perforation. Further, between the standing portion 3 and the mounting plate 4 for the paper to be perforated, there is a paper 6 to be perforated.
A gap 7 is provided in which the lever is inserted from the handle side of the lever.

(Problem that the invention aims to solve) When using such a large punch to punch multiple holes at the same time, the shape of the punch is also large, making it difficult to punch many holes at once in many stacks of paper or thick paper. The lever that is pressed to open the door and the base that receives this pressing force must have structural strength to withstand these forces, so they are thick and large.
Moreover, in the case of multi-hole drills, the number and position of the holes are predetermined and cannot be changed, so it is necessary to have a punch for the type of hole to be drilled. There were also problems. Therefore, the present invention has been made in order to obtain a punch for office use that has a simple structure and is highly flexible.

(Means for Solving the Problems) In the present invention, as a means for solving the above-mentioned problems, the punch blade is installed in an office punch using a single plate bent into a U-shape. A plurality of punch units are arranged at a predetermined interval, each consisting of a rising part where the perforated paper is inserted from the handle side of the lever, a part which becomes the intermediate part where the paper to be perforated is inserted from the handle side of the lever, and a part which becomes the support beam that receives the perforating blade. , the plurality of punch units arranged side by side are connected by a support beam by a thin paper mounting board.

(Function) In this way, a punch unit is formed in which the rising part and the support beam are integrated, a plurality of these punch units are arranged at a predetermined interval, and the support beam parts are connected by a paper mounting board. Further, by connecting the handle portions to each other as necessary, a required punch with a freely selected hole interval and number of holes can be easily formed.

(Example) An example of the present invention will be described below with reference to the drawings. In FIG. 1, the punch unit 10 has a rising part 12 where the punch blade 11 is installed, a space part 13 into which the paper to be punched is inserted, and a part that will become the support beam part 14, as shown in FIG. It is formed by bending one sheet 15. A handle 17 is pivotally attached to a hole 16 provided in the upper part by a shaft 16a, and a punch blade 11 is mounted inside the rising portion. In this example, the punch blade 1
Reference numeral 1 is a pipe blade, and a pedestal 18 is provided on the upper surface of the part that will become the support beam 14, and a plastic plate 19 is placed on top of the pedestal 18 to receive the pipe blade. As a result, the punch unit 10 is formed, and the rising portion and the lower support beam are covered with outer plates to form a closed space, which serves as a storage box for punch scraps.

In this embodiment, a pipe blade is used as the punch blade 11, and a plastic plate 19 is provided on the pedestal 18, but a rod blade is provided as the punch blade 11,
It is also possible to use a pedestal with holes drilled in it. At that time, the storage box for punch scraps will only be in the lower support beam.

Further, as shown in FIG. 3, a plurality of punch units 10 formed in this manner are arranged at a predetermined interval, and a thin paper mounting board 20 is used to attach the support beam part 14 to the support beam part 10.
Concatenate. Further, if necessary, the handle 17 can also be connected by a thin plate 21, so that the required punch with the perforation interval and the number of perforations freely selected can be easily obtained.

(Effects of the Invention) Since the present invention has the above-described configuration and operation, a punch unit with a strong structure can be formed with a simple configuration. This punch unit is equipped with a handle, a punch blade, a support beam, and a punch waste storage box, and fulfills the role of a punch, but by arranging the required number of units at the required intervals and connecting them with a paper mounting plate, To easily obtain a large multi-hole punch capable of producing a sufficiently large force even when the strength of the paper mounting board is weak. Another advantage is that the punch units can be mass-produced at low cost and can be combined to create a variety of punches.

[Brief explanation of the drawing]

Figure 1 is a perspective view of one unit of the punch of the present invention, Figure 2 is a perspective view of a plate forming the main part of the punch unit of the present invention, and Figure 3 shows the punch units connected by a paper mounting plate. FIG. 4 is a side view of a conventional large punch. 10...Punch unit, 11...Punch blade,
12...Rise part, 13...Between part, 14...Beam part, 20...Thin paper mounting board.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A single plate bent into a U-shape, into which the punch blade is installed and where the paper to be punched is inserted from the handle side of the lever. A plurality of punch units are arranged at a predetermined interval at a predetermined interval, each consisting of a part that will become an intermediate part and a part that will become a support beam that receives a punching blade, and the plurality of punch units that have been lined up are placed on a support beam using a thin paper mounting plate. An office punch characterized by connecting parts. (2) The office punch according to claim 1, wherein the perforating blade is a pipe blade, and the receiving part for receiving the perforating blade is a plate. (3) The office punch according to claim 1, wherein the punching blade is a rod blade, and the receiving part for receiving the punching blade is a hole provided in the support beam.