JP3265846B2 - Perforated binding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding function in which a punching unit is disposed behind the upper surface of a base, and a slide base for mounting a sheet bundle on the base slides between a punching position and a binding position. Perforated binding machine having

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. Sho 62-218197 is cited as an example. A support 3 is erected and fixed on the upper surface behind the base 2, and a handle 4 is rotatably supported on the support 3. A perforation blade 5 that moves up and down by rotation of the handle 4 is fixed inside the support 3. On the upper surface of the base 2, a document mounting table 6 is disposed so as to be able to move back and forth. On the document mounting table 6, a pressing plate 19 is pressed via a pressing shaft 20 to press and fix the document. Spring 21,
25 so as to be openable and closable. further,
A recessed portion 10 on which the female member 27 is placed is provided in an intermediate portion on the upper surface of the base 2.
The male member 26 is formed with a through hole 12 into which the male member 26 is inserted.

Next, the operation will be described. First, a document to be punched is placed on the upper surface of the document table while the document table is pulled out toward the user. Next, the pressing plate is lowered, and the pressing plate is locked and fixed by the stopper piece. Thus, the document is fixed to the document table. Next, the document mounting table is pushed in, and the handle is rotated to pierce the document. After the perforation is completed, the perforated document is pulled out together with the document mounting table and the binding device is fastened. Finally, the locking of the pressing plate is released by returning the stopper piece, the end of the male member 26 is pulled out from the through hole 12, and the document is removed from the mounting table.

[0004]

By the way, the male member 26
When fitting to the female member 27, a certain amount of pressing force is required. This pressing force is applied intensively to the male flange 28 of the male member 26. Thus, the middle portion of the male member 26 is fitted to the female member 27 in a curved state. However, if the curvature of the middle portion of the male member 26 is extremely extreme, the perforated paper bundle will be displaced, causing a poor fit. Also, after the perforation is completed, the paper stack is pulled out with the document mounting table in front.The paper bundle is held by the stopper pieces, but the paper bundle may shift during the pulling process. is there. In such a case, the male member must be inserted into the perforated hole after the paper bundle is realigned, which is very troublesome.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a punching unit at the rear of an upper surface of a base and to mount a slide base on which a bundle of paper is mounted on the base at a punching position. In the perforation binding machine provided with a punching blade and a rotating lever for pressing the binding device pressing rod, the binding device pressing bar is positioned above the binding position. It is characterized in that the positioning pin is arranged so as to be able to protrude and retract from the center hole of the binding base fixed to the upper surface of the base from the lower surface of the binding position.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pair of side panels 2 are fixed to the base 1 at the rear of the upper surface of the base 1 in the left-right direction, and a resilient member 3 such as a coil spring is provided inside the side panel 2. The piercing blade 4 urged upward is arranged to be vertically movable.
Further, a rotating lever 5 for lowering the perforation blade 4 and pressing a binding tool pressing rod, which will be described later, is rotatably attached to the side plate 2 about a shaft 6. Pressing pins 7 and 8 for lowering a punching blade 4 and a binding tool pressing rod, which will be described later, are fixed to the rotating lever 5, respectively. A bracket 10 for fixing a pressing unit 9 described later is fixed between the pair of side panels 2 behind the upper surface of the base 1, but the pressing unit 9 and the bracket 10 may be integrated. Further, a slide base 11 for mounting a paper bundle is mounted on the upper surface of the base 1 so as to be slidable back and forth. It is formed in a shape 12.

Next, the pressing unit 9 will be described.
On both sides of the pressing unit 9, binding tool pressing rods 14, 15 which can be opened and closed by operating the lever 13 are arranged. Further, the binding tool pressing rods 14 and 15 are resilient members 16 and 17.
And is movably arranged vertically. 1
Reference numeral 8 denotes a plate-shaped paper presser having a repelling action and fixed to the rear of the slide base 11.

At a position below the binding tool pressing rod, which is a binding position on the base 1, a positioning pin unit 19 is provided.
It is attached so that it can appear and disappear. The positioning pin unit 19 will be described in detail. A binding pedestal 20 is fixed to the base 1, and a positioning pin 21 is disposed in a center hole of the binding pedestal 20 so as to be vertically slidable.
A long hole 22 is formed below the positioning pin 21, and a link pin 23 for sliding the positioning pin 21 downward is loosely fitted in the long hole 22. The positioning pin 21 is constantly urged upward by a resilient member 24 stretched between a flange portion 21a formed at an intermediate portion of the positioning pin 21 and the link pin 23. The link pin 23 is engaged with an inclined guide hole 11 a formed on the side surface of the slide base 11, and moves up and down in conjunction with the forward and backward movement of the slide base 11.
The positioning pin 21 also moves up and down in conjunction with the up and down movement of the link pin 23. In this example, since the binding device is an eyelet (see FIG. 8), a semicircular recess 20a is formed on the upper surface of the binding pedestal 20 so that the lower end of the eyelet is crushed in a round shape. A center hole is formed at the center.

Next, the operation will be described. The paper bundle is placed on the slide base while the slide base 11 is pushed in, and the paper bundle is pressed down by the paper presser 18. Next, the rotary lever 5 is rotated to pierce. After drilling,
The sheet bundle is pulled out together with the slide base 11. At this time, the link pin 23 is raised by the guide hole 11a formed on the side surface of the slide base 11. The lowering of the positioning pin 21 is released by the rise of the link pin 23, and the positioning pin 21 rises and is loosely fitted in a hole formed from the center hole of the binding base 20. The state shown in FIG. 5 changes to the state shown in FIG. Further, in this state, when the eyelet H as shown in FIG. 8 is inserted into the perforated hole, the eyelet H is loosely fitted to the positioning pin 21.

Next, the lever 13 is moved to the left in the figure, and the binding tool pressing rods 14, 15 are expanded right and left. By this expanding operation, the binding tool pressing rods 14 and 15 are positioned above the eyelets H. Here, when the rotating lever 5 is rotated again, the eyelets H are pressed and crushed. At this time, eyelet H
Since the is held by the positioning pin 21, it does not tilt or bend. This completes the binding operation. After the binding operation is completed, the lever 13
To the right to close the binding tool pressing rods 14 and 15. Next, the positioning pin 21 is also lowered by pushing the slide base 11. It is easiest to remove the paper bundle in this state. That is, the stapled paper bundle may be removed with the positioning pins 21 protruding, but the lower end of the eyelets may catch on the tops of the positioning pins, making it difficult to remove them.

[0011]

According to the present invention, a perforating unit is provided at the rear of the upper surface of a base, and a slide base for placing a sheet bundle on the base is slid to a perforating position and a binding position, and the sliding base is positioned above the binding position. In a perforation binding machine provided with a punching blade and a rotating lever for pressing the binding tool pressing rod, the binding pin is fixed to the upper surface of the base from the binding lower surface of the base. Since it is arranged so as to be able to protrude and retract from the pedestal center hole, it is possible not only to hold the binding tool but also to prevent the sheet bundle from shifting.

[Brief description of the drawings]

FIG. 1 is an external perspective view of one embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a front view of the base cut from FIG. 1;

FIG. 4 is a left side view of FIG. 1;

FIG. 5 is a front sectional view of the positioning pin unit of FIG. 3 when it is not operated.

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a front view in operation of FIG. 5;

FIG. 8 is a front sectional view of the eyelet.

[Explanation of symbols]

 Reference Signs List 1 base 4 punching blade 5 rotating lever 7,8 pressing pin 9 pressing unit 11 slide base 11a guide hole 14,15 binding tool pressing rod 19 positioning pin unit 20 binding pedestal 21 positioning pin 23 link pin

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B26F 1/00-1/46 B42B 5/02 B42F 13/00-13/42

Claims (1)

(57) [Claims] 1. A piercing unit is provided at the rear of an upper surface of a base,
The slide base for placing the paper bundle on the base is slid between the punching position and the binding position so that the binding tool pressing rod can be positioned above the binding position, and the punching blade and the binding tool pressing rod are pressed. A perforation binding machine provided with a rotating lever, wherein a positioning pin is disposed so as to be able to protrude and retract from a center hole of a binding base fixed to an upper surface of the base from a lower surface of a binding position of the base.