JPH0686971U - Perforated binding device for paper bundles - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a punching and binding apparatus for a relatively large number of paper bundles of about 100 to 200 sheets, and its purpose is to bind a punched paper bundle to the binding pin as it is. It is easy to bind with. A pinion gear that is fixed to a rotary shaft that is rotatably disposed on the upper surface of a base and is rotated by a pressing lever, and a first rack gear that meshes with both sides of the pinion gear,
A punching and binding device for a sheet bundle, wherein a second rack gear is attached, a punching blade is provided at a lower end of a first slider integrated with the first rack gear, and a binding pin pressing plate is provided on a second slider integral with the second rack gear. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention places a stack of paper on the upper surface of the base, punches holes in the stack, and inserts binding pins into the holes of the punched paper stack to bind the sheets, which is a relatively small number of sheets of 100 to 200 sheets. The present invention relates to a punch binding device for a large number of paper bundles.

[0002]

[Prior art]

 Conventionally, Japanese Patent Laid-Open No. 62-218197 has been known as a punch binding device for a sheet bundle. In the above-mentioned conventional apparatus, a column is erected and fixed on the upper surface behind the base, and a handle is rotatably supported on the column. Further, a perforating blade which is moved up and down by the rotation of the handle is fixed inside the column. Further, a document mounting table having a notch part in a part thereof on the upper surface of the base so as to cover the base, and a rear part having an abutment wall is slidably arranged in the longitudinal direction. ing. Further, a concave portion, which is a mounting position of the female member 27 to be fitted to the rod-shaped male member 26 for binding the punched document, is formed in the middle portion of the upper surface of the base.

Next, the operation will be described. A female member to be inserted into a rod-shaped male member, which will be described later, is fitted and placed in the recessed portion on the upper surface of the base, and then a document to be punched is placed on the upper surface of the base. Then, when the handle is rotated forward (in the figure), the cutting blade descends as the handle rotates and perforates the document. Next, pull out the document together with the document table and insert the rod-shaped male member into the perforated hole. When the rod-shaped male member penetrates the hole, the rod-shaped male member is fitted into the female member located immediately below the hole. Documents are bound by the fitting operation of the male member and the female member.

[0004]

SUMMARY OF THE INVENTION In the above-mentioned prior art, however, a document is bound by fitting a male member and a female member, and when a large number of sheets are used, the male member is used. In some cases, it could not be inserted smoothly into the drilled hole. That is, since the document placing table is pulled toward the front side after punching, the document may be slightly displaced during the moving process of the document placing table, and as a result, the above-mentioned problems occur. Also, since the binding force between the male member and the female member is set strongly so that the bound documents will not be easily separated, it is not possible to press the flange portion of the male member with a finger or the like to fit it into the female member. It wasn't easy.

[0005]

[Means for Solving the Problems]

 The present invention is intended to solve the above problems, in which a working shaft is rotatably mounted on the upper surface of a base, and an operating case is fixed to the pinion gear, which is rotated by a pressing lever, and meshes with both sides of the pinion gear. A first rack gear and a second rack gear are attached, a punching blade is provided at the lower end of the first slider integrated with the first rack gear, and a binding pin pressing plate is provided at the second slider integrated with the second rack gear. Is.

[0006]

【Example】

 The first embodiment of the present invention shown in FIGS. 1 to 3 will be described in detail. A rotary shaft 3 is rotatably arranged on a rear upper surface of the base 1 via a slide bearing and a rolling bearing (ball bearing) 2. 1 to 3, the rolling bearing 2 and the rotary shaft 3 are assembled from above the base 1 (upper surface), but in consideration of the reaction force when punching, the rolling bearing 2 is prevented from coming off. Therefore, it is preferable to fix a cover member or the like to the base 1. As shown in FIG. 4, a gate-shaped hole 1a may be formed below the base 1 (bottom surface), and the rolling bearing 2 may be press-fitted into the hole 1a for assembly. Further, the rotating shaft 3 in the present embodiment can be temporarily locked at a rotating angle of 180 degrees.

On the other hand, an operation housing 4 is fixed to the upper surface of the rotating shaft 3, and a rotation center shaft 6 of a pressing lever 5 is rotatably attached to the operation housing 4. A pinion gear 9 that meshes with a first rack gear 7 and a second rack gear 8 described later is formed on the outer periphery of the rotating center shaft 6. Further, a first rack gear and a second rack gear which mesh with both sides of the pinion gear 9 are mounted in the operation housing 4, and a punching blade for punching a sheet bundle W is provided below a first slider 10 which is integral with the first rack gear 7. A block 11 is detachably fixed to the block 12 by a screw or the like.

On the other hand, a second slider 13 which is integral with the second rack gear 8 is vertically slidably arranged. Further, below the second slider 13, a pressing plate 14 that presses the head of the binding pin described later is fixed. A slide base 15 on which the sheet bundle W is placed is attached to the upper surface of the base 1 so as to be slidable back and forth. In addition, a recess 16 is formed on the upper surface of the intermediate portion of the base 1, in which a washer member fitted to the binding pin is installed.

Next, the usage method will be described. Before placing the sheet bundle W on the slide base 15, the washer member 17 is installed in the recess 16 in the middle of the base. After the installation, the pressing lever 5 is rotated to the front and the punching blade 11 is lowered to punch the sheet bundle W (see FIG. 1). After the punching is completed, the pressing lever 5 is raised and the punching blade 11 is pulled out from the sheet bundle W (see FIG. 2). Then, the operating housing 4 is rotated by about 90 degrees, and the binding pin 19 is temporarily inserted into the hole 18 that has been punched. After the temporary insertion, the actuating housing 4 is further rotated so that the pressing plate 14 is positioned above the binding pin 19. After the positioning is completed, the pressing lever 5 is again rotated to the front so that the binding pin 19 is pushed into the sheet bundle W by the pressing plate 14 and fitted into the washer member 17 (see FIG. 3). This completes the punching and binding operations on the sheet bundle. When it is desired to punch another sheet bundle again, the actuating housing 4 is rotated 180 degrees and the punching blade 11 is positioned so that it faces toward you.

[0010]

[Effect of device]

 According to the present invention, an operating housing is fixed to a rotary shaft rotatably arranged on the upper surface of a base, and a pinion gear that is rotated by a pressing lever and a first rack gear and a second rack gear that mesh with both sides of the pinion gear are attached. Since a punching blade is provided at the lower end of the first slider that is integral with the first rack gear and a binding pin pressing plate is provided on the second slider that is integral with the second rack gear, there is no misalignment of documents and the binding pin is easy. Can be fitted to the washer member.

[Brief description of drawings]

FIG. 1 is a front sectional view of the present invention during perforation.

FIG. 2 is a front cross-sectional view when the punching blade of FIG. 1 is removed.

FIG. 3 is a front cross-sectional view when FIG. 2 is bound with a binding pin.

FIG. 4 is a front sectional view of another example of how to mount the bearing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Bearing 3 Rotating shaft 4 Working case 5 Push lever 6 Rotation center axis 7 1st rack gear 8 2nd rack gear 9 Pinion gear 10 1st slider 11 Drilling blade 13 2nd slider 14 Push plate

Claims (1)

[Scope of utility model registration request] 1. A pinion gear that is fixed to a rotary shaft that is rotatably disposed on an upper surface of a base and is rotated by a pressing lever, and a first rack gear and a second rack gear that mesh with both sides of the pinion gear. A punching and binding device for a sheet bundle, wherein a punching blade is provided at a lower end of a first slider integrated with a first rack gear, and a binding pin pressing plate is provided on a second slider integral with a second rack gear.