JP2004306294A - Electromotive stapler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromotive stapler capable of easily performing the attachment and detachment operation of a cartridge for the replenishment with staples. <P>SOLUTION: This electromotive stapler is equipped with a driver unit 3, which is detachably provided with the cartridge 7 having an ejection passage 8 formed to one end thereof and strikes out staples from the ejection passage 8, and a clincher unit 4, which is equipped with a clincher mechanism 12 for bending the legs of the staples piercing bound paper, both of which are formed separately. The ejection passage 8 of the driver unit 3 and the clincher mechanism 12 of the clincher unit 4 are opposedly arranged so as to hold a feed passage 15 for feeding the bound paper, and the cartridge mounting direction to the driver unit 3 and a drive mechanism 6 for driving the clincher mechanism 12 of the clincher unit 4 are arranged so as to be turned to mutually opposite directions with respect to the plane including the ejection passage of the staples. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, a driver unit that drives staples contained in a cartridge toward a binding sheet and a clincher unit that bends a leg of the staple penetrating the binding sheet along the back surface of the binding sheet are formed separately. The present invention relates to an electric stapler in which both units are arranged with a binding paper conveyance path interposed therebetween.
[0002]
[Prior art]
For example, in order to bind multiple sheets of paper that have been copied or printed by a copier or a printing machine, etc., the sheets that have been copied or printed are automatically installed inside a sheet post-processing device such as a copier, a printing machine, or a sorter. 2. Description of the Related Art An electric stapler adapted to be stapled is conventionally known. In a conventional electric stapler, a driver unit in which a cartridge containing a large number of staples is mounted and which hits the staples toward binding paper, and legs of the staple which are punched out from the driver unit and penetrated the binding paper, are provided. And a clincher section that bends the paper along the back surface of the binding paper are independently formed as respective units, and are arranged apart from each other with a conveyance path through which the copied binding paper passes. After a predetermined number of stapled sheets are arranged in the transport path between the driver section and the clincher section, the stapled sheets are clamped between the clincher section and the driver section, and staples are ejected toward the stapled sheets clamped from the driver section. Thereafter, the clincher is operated to bend the staple legs that penetrate the binding paper along the back surface of the binding paper to bind the binding paper.
[0003]
In the driver unit forming the driver unit, a cartridge containing a large number of straight staples is mounted so as to be detachable from the rear side of the driver unit, and a punching passage is formed at an end of the cartridge. . Further, the driver unit is provided with a forming plate for forming a straight staple into a U-shape and a driver plate for forming a U-shaped staple from the launch passage in correspondence with the ejection passage. In addition, the clincher unit forming the clincher portion has a clincher mechanism formed at one end side to bend the staple legs by engaging with the staple penetrating the binding paper, and further includes a drive mechanism for driving the clincher mechanism. Are formed on the rear side. The driver unit and the clincher unit are attached with the staple ejection path of the driver unit aligned with the clincher mechanism of the clincher unit with the conveyance path for the bound paper interposed therebetween (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP, 2002-46083, A
[Problems to be solved by the invention]
It is required that the staples are driven in the stapling direction from the printing surface side of the printed binding paper.This is because of the design of the transport path in the copier, printing machine or sheet post-processing device, and the space for installing the electric stapler. For this reason, as shown in FIG. 4, in the conventional electric stapler 20, the clincher mechanism 23 of the clincher unit 22 is moved closer to the junction in order to form a staple binding portion near the junction of the copy paper conveyance path 21. The driving path 25 of the driver unit 24 is disposed on the lower surface side of the binding paper transport path 21 so as to face the clincher mechanism 23. When the driver unit 24 is disposed on the lower surface side of the transport path 21 so that the mounting direction of the cartridge is downward, the cartridge mounting portion of the driver unit 24 is downward and the mounting portion is visually observed. This makes it difficult to remove and mount the cartridge 26 from the driver unit 24 to replenish staples.
[0006]
The present invention solves the above-mentioned problems in the related art, and even when a driver unit is arranged below the conveyance path of the bound paper, it is possible to easily perform the operation of attaching and detaching the cartridge to replenish the staple. It is an object to provide a simple electric stapler.
[0007]
[Means for achieving the object]
In order to achieve the above object, an electric stapler according to the present invention is configured such that a cartridge accommodating a large number of staples is removably mounted, and staples in the cartridge are supplied to a punching passage formed at a leading end of the cartridge, and the staple is supplied to the punching passage. A driver unit configured to eject the supplied staples toward the binding paper, a clincher mechanism configured to bend the staple legs that have penetrated the binding paper along the binding paper, and a clincher unit including a driving mechanism configured to drive the clincher mechanism. And the driver unit and the clincher mechanism of the clincher unit are disposed so as to face each other with the transport path for transporting the binding paper therebetween, and the cartridge mounting direction of the driver unit and the drive mechanism of the clincher unit. And the staple launch passage Characterized in that to free the plane were located toward the opposite directions.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of an electric stapler according to the present invention will be described based on examples shown in the drawings. As shown in FIG. 1, the electric stapler 1 includes a driver unit 3 that emits staples toward a binding sheet P disposed in a transport path 2 that transports a copied or printed binding sheet P, and a staple that penetrates the binding sheet P. The clincher unit 4 is configured to bend the legs along the back surface of the sheet. The two units 3 and 4 are formed independently of each other. For example, the units 3 and 4 are arranged with the conveyance path 2 of a copy or printed sheet formed inside a copier, a printing machine, a sheet post-processing device, or the like interposed therebetween. . Each of the units 3 and 4 is driven by a driving mechanism 5 or 6 mounted on each of the units 3 and 4 to perform staple punching and folding.
[0009]
The driver unit 3 arranged on the lower surface side of the transport path 2 is provided with a cartridge 7 in which a plurality of straight staples S are stacked and accommodated in a stack, and the cartridge 7 is accommodated therein. The upper surface of the embossing passage 8 formed at the tip of 7 faces the transport path 2. The driver unit 3 includes a supply mechanism for supplying the sheet-like staples S contained in the cartridge 7 to the ejection passage 8, a forming plate 9 for forming the straight staples S supplied to the ejection passage 8 into a U-shape, and And a driver plate 10 for ejecting staples formed in a U-shape from the ejection passage 8 toward the paper in the transport path 2. Further, these supply mechanisms, forming plates 9 and driver plates 10 are formed in a driver unit. The driving mechanism 5 is driven.
[0010]
The cartridge 7 is formed with a storage section 11 for storing the sheet staples S, and the sheet staples S are stacked and stored in the storage section 11. The cartridge 7 is detachable from a mounting portion formed in the driver unit 3. After the sheet staples S stored in the cartridge 7 are consumed, the cartridge 7 is removed from the driver unit 3 and is removed from the storage unit. The sheet-like staples S are refilled in the cartridge 11 and are mounted on the driver unit 3 again. The cartridge 7 is moved in the direction opposite to the side where the ejection passage 8 is formed as shown by the arrow shown in the drawing, taken out of the driver unit 3, and the cartridge 7 replenished with staples is mounted on the driver unit 3 again. In such a case, the movement is performed in the direction opposite to the arrow direction.
[0011]
On the other hand, the clincher unit 4 is engaged with a staple leg that is punched out from the punching passage 8 of the driver unit 3 by the driver plate 10 and penetrates the binding paper in the transport path 2 to bind the staple leg to the binding paper P. A clincher mechanism 12 is formed to bend along the back side of the device, and is operated by the drive mechanism 6 provided in the clincher unit. The clincher mechanism 12 is formed at one end of the clincher unit 4, and the drive mechanism 6 is formed from the one end to the other end. The clincher unit 4 is oriented so that the clincher mechanism 12 is aligned with the ejection passage 8 of the driver unit 3 and the drive mechanism 6 of the clincher mechanism 12 is opposite to the mounting direction of the cartridge 7 mounted on the driver unit 3. It is arranged to face the driver unit 3 so as to be able to operate.
[0012]
As shown in FIG. 2, when a predetermined number of binding sheets P are arranged in the transport path 2, the clincher mechanism 12 of the clincher unit 4 advances into the transport path 2 to clamp the binding sheets P, and then the driver The driver plate 10 of the unit 3 is driven to strike the staples supplied into the ejection passage 8 toward the binding paper P. The straight staples forming the sheet-like staples S are formed into a U-shape by the forming plate 9 immediately before being supplied to the ejection passage 8, and the staples formed into the U-shape are supplied into the ejection passage 8. ing. The staple legs that are punched out of the punching path 8 by the driver plate 10 and penetrate the binding paper P are bent by the clincher mechanism 12 along the back side of the binding paper P, and the staple binding is completed.
[0013]
An embodiment in which the electric stapler 1 according to the embodiment of the present invention is mounted on a sheet post-processing device 14 connected to a copying machine 13 will be described with reference to FIG. In the sheet post-processing device 14, a conveying path 15 is formed to be inclined for stapling copy paper, and a conveying path for guiding the sheet discharged from the copier 13 to the inclined conveying path 15 is formed. 16 are formed so as to merge at an acute angle toward the upper side of the transport path 15. Since the copy paper discharged from the copy machine 13 is carried out with the copy print surface facing downward, the driver unit 3 is disposed on the lower surface side of the transport path 15 so that staples are driven in from the print paper print surface side. I have. Further, the clincher unit 4 is arranged on the upper surface side of the transport path 15.
[0014]
The clincher unit 4 is arranged such that the end where the clincher mechanism 12 is formed approaches the junction of the transport path 15 and the transport path 16, and the drive mechanism 6 that drives the clincher mechanism 12 is on the downstream side of the transport path 15. Accordingly, the binding position of the copy sheet can be set above the transport path 15, and the length of the transport path 15 in the downstream direction from the junction can be reduced, so that the size of the post-processing device can be reduced. . The driver unit 3 is arranged so that the ejection passage 8 is opposed to the clincher mechanism 12 of the clincher unit 4, and the driver plate 10 and the forming plate 9 formed corresponding to the ejection passage 8 are connected to the conveyance path 15. It is arranged on the downstream side and is arranged so that the mounting direction of the cartridge 7 is directed upward of the driver unit 3.
[0015]
As described above, even when the driver unit 3 is arranged on the lower surface side of the transport path 15, the mounting direction of the cartridge 7 to the driver unit 3 can be arranged upward, so that staples can be replenished. The operation of taking out and mounting the cartridge 7 can be easily performed. Further, the clincher mechanism 12 of the clincher unit 4 can be disposed near the junction of the two transport paths 15 and 16, and the staple binding position can be set near the junction of the transport paths 15 and 16. The length of the sheet stapler can be shortened, and devices such as a sheet post-processing device that accommodates the electric stapler can be downsized.
[0016]
【The invention's effect】
As described above, according to the present invention, the ejection path of the driver unit and the clincher mechanism of the clincher unit are arranged to face each other with the transport path for transporting the binding paper therebetween, and the mounting direction of the cartridge of the driver unit and the clincher unit of the clincher unit are arranged. Since the drive mechanism and the drive mechanism are installed in the opposite direction to the plane including the staple ejection path, the clincher mechanism of the clincher unit is arranged near the junction of both transport paths, and the mounting direction of the cartridge of the driver unit. Can be removed from the driver unit for replenishing staples, and the operation of mounting the replenished cartridge on the driver unit can be performed from above the sheet post-processing device. Can be done while watching It is possible to easily perform staple loading operation.
[Brief description of the drawings]
FIG. 1 is a side view of an electric stapler according to an embodiment of the present invention. FIG. 2 is a side view of the same electric stapler as in FIG. 1 during a staple binding operation. FIG. 3 is an embodiment of an electric stapler mounted on a sheet post-processing apparatus. FIG. 4 is a side view of a conventional electric stapler mounted on a sheet post-processing apparatus.
REFERENCE SIGNS LIST 1 electric stapler 2 transport path 3 driver unit 4 clincher unit 5 drive mechanism 7 cartridge 8 launch path 12 clincher mechanism 13 copy machine 14 sheet post-processing device 15 transport path 16 transport path

Claims (1)

A cartridge accommodating a large number of staples is removably mounted, and staples in the cartridge are supplied toward a punching passage formed at the end of the cartridge, and the staples supplied to the punching passage are punched toward binding paper. And a clincher unit having a drive mechanism for driving the clincher mechanism and a clincher mechanism that bends a staple leg that penetrates the binding paper along the binding paper, and separately forms and transports the binding paper. The ejection path of the driver unit and the clincher mechanism of the clincher unit are disposed so as to face each other with the conveyance path therebetween, and the cartridge mounting direction of the driver unit and the drive mechanism of the clincher unit are mutually displaced with respect to a plane including the staple ejection path. Installed in the opposite direction Electric stapler which is characterized.

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