JP2689839B2 - Staple cartridge and staple sheet pack - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staple cartridge used in an electric stapler for binding documents and the like.

[0002]

2. Description of the Related Art Various electric staplers using a motor or a solenoid are commercially available. This type of electric stapler uses a normal staple bent in a gate shape, and linear staples 1, 1 ... Are bonded in parallel as shown in FIG. 7 to form a sheet. Some use the staple sheet 2. As shown in FIG. 8, the staple sheets 2, 2 ... Are stacked and housed in a cartridge 3 made of transparent resin or the like, and are urged downward by a compression coil spring 4 and a pressure plate 5 housed in the upper space of the cartridge 3. As shown in FIG. 9, the cartridge 3 is supported by bottom plates 6 and 6 provided on both left and right sides of the bottom portion.

The cartridge 3 is mounted inside the electric stapler 7 as shown in FIG.
Alternatively, one by one by the rollers along the lower surface of the guide plate 9 in the front part of the cartridge 3 forward (left in FIG. 10).
Transferred to Then, although not shown in the drawings, the staple at the leading end portion is formed into a gate shape by the forming mechanism, and is driven into the clincher 10 side by the driver to bind the document.

[0004]

The above-described electric stapler using the staple sheet cartridge can store a much larger amount of staples in the cartridge as compared with the one using the pre-shaped staples. Therefore, it is not necessary to frequently replenish the staples, and the office work can be streamlined.

However, when the staple sheets in the cartridge are used up, the entire cartridge must be replaced, and the disposal of the resin cartridge is not only difficult to incinerate but also a social resource saving. It does not meet the request. In addition, recycling the discarded cartridge requires the trouble of recovery and the work of separating the resin component and the metal component, which causes a problem of increasing the product cost.

Therefore, there arises a technical problem to be solved in order to enable repeated use of the staple cartridge and solve various problems associated with disposal and recycling, and the present invention aims to solve the above problems. And

[0007]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and is for an electric stapler in which a plurality of linear staple-bonded staple sheets are stacked and housed in a cartridge. In the staple cartridge, the cartridge and the staple sheet holder inserted into the cartridge are formed so that the staple sheet holder can be pulled out from the cartridge by a predetermined amount, and the staple sheet holder can be loaded with the staple sheet. The present invention provides a staple cartridge characterized by the above, and a staple sheet pack in which a number of staple sheets that can be stored in the staple sheet holder are stacked and bound.

[0008]

In the staple cartridge according to the first aspect, the staple sheet holder housed in the cartridge can be pulled out from the cartridge and exposed. By storing the staple sheet in the pulled-out staple sheet holder and inserting the staple sheet holder into the cartridge, the staple cartridge can be repeatedly used.

In the staple sheet pack according to the present invention, a number of staple sheets that can be stored in the staple sheet holder are bundled. If the staple sheet pack is loaded into the staple sheet holder and the bundle is released, a predetermined number of staples are stapled. The sheet is replenished.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a staple cartridge 11, reference numeral 12 is a cartridge which is an outer casing, 13 is a staple sheet holder, 14 is a staple sheet 2, 2 ...
Is a staple sheet pack in which The cartridge 12 is integrally molded of transparent resin, the lower surface is open, and the staple sheet holder 13 can be pulled out downward. The front panel 12a of the cartridge 12 is formed with a vertically elongated hole 15, and a convex portion 17 is provided on the front portion of a pressure plate 16 which moves up and down in the cartridge 12, and the convex portion 17 is engaged with the elongated hole 15. To combine. A compression coil spring 18 is interposed between the pressure plate 16 and the top plate 12b of the cartridge 12, and the pressure plate 16 is urged downward.

The staple sheet holder 13 is open at both upper and lower sides and the front surface, and as shown in FIG. 1, bottom plates 19, 19 for supporting the staple sheet in the front-rear direction are provided along the lower ends of the left and right side walls. . As shown in FIG. 2, the lock mechanism of the staple sheet holder 13 includes a lock lever 20 pivotally mounted on the back surface 12 c of the cartridge 12.
And the locking holes 21 and 21 opened in the back surface portion 13a of the staple sheet holder 13. The lock lever 20 is provided with a compression coil spring 22 and a window 23 through which the tip claws 20a, 20a are opened in the cartridge 12,
When the staple sheet holder 13 in the opened state shown in FIG. 1 is slid upward, the back surface portion 13a of the staple sheet holder 13 shown in FIG. 20a is pushed and pushed out. Then, when the staple sheet holder 13 is inserted into a predetermined position, the claws 20a, 20a of the lock lever 20 are fitted into the locking holes 21, 21 of the staple sheet holder 13 so that the staple sheet holder 13
Is locked.

When pulling out the staple sheet holder 13, if the lower end portion 20b of the lock lever 20 shown in FIG. 2 is pressed to disengage the pawls 20a, 20a from the locking holes 21, 21, the staple sheet holder 13 can be pulled out. You can Staples 1, 1 in the staple cartridge 11
When the sheet has been used up, the staple cartridge 11 is removed from the electric stapler (not shown), and the staple sheet holder 13 is pulled out by the above-mentioned operation. Then, as shown in FIG. 1, the staple sheet pack 14 supplied in a state of being bound by the band 24 is inserted into the inside of the staple sheet holder 13 from the front opening. The band 24 is a tape of paper or polyethylene, and both ends are adhered to the bottom surface of the staple sheet pack 14 as shown in FIG. 4, and no adhesive or adhesive is applied to the end on the front surface side. The tab 24a for removal is used.

After the staple sheet holder 13 having the staple sheet pack 14 inserted therein is pushed into the cartridge 12 to lock the staple sheet holder 13,
When the tab 24a of the band 24 exposed on the bottom surface side is pulled, the adhesive portion is peeled off, the band 24 is pulled out, and the loading of the staple sheet pack 14 is completed. In this way, the staple cartridges 11 can be replenished with the staple sheets 2, 2, ... Each time the staples are used up.

FIGS. 5 and 6 show another embodiment. The staple cartridge 31 is configured so that the staple sheet pack 14 is inserted from the rear of the staple sheet holder 32, which is the reverse of that of the previous embodiment. The rear portion of the staple sheet holder 32 is opened,
A guide portion 32a is integrally provided on the front portion. Further, the front panel 32b is formed with a vertical elongated hole 33 for guiding the convex portion 17 of the pressure plate 16 described above. Top plate 32c
An insertion portion of the compression coil spring 18 is opened in the center of the lock lever 20, and a lowering portion 32d is provided downward from the rear end of the top plate 32c on the back surface. As shown in FIG. The lower end edge of the lowering portion 32d is engaged with 20a, 20a.

The cartridge 34 into which the staple sheet holder 32 is inserted is provided with elongated holes 36 and 37 on the front surface for avoiding interference between the elongated hole 35 for inserting the convex portion 17 and the guide portion 32a. This staple cartridge 31
Is the same as that of the previous embodiment except the inserting direction of the staple sheet pack 14, and the lock lever 20 is operated to pull out the staple sheet holder 32,
The staple sheet pack 14 is placed and loaded on the bottom plates 38, 38, and the staple sheet holder 32 is pushed in and locked. As shown in FIG. 5, since the side plates 32e, 32e of the staple sheet holder 32 and the guide portion 32a are integral with each other, the guide portion 32a and the staple sheet holder 32 are different from each other. There is no step between the inner side surface of the side plate and the inner side surfaces of the side surface plates 32e, 32e. Therefore, the traveling of the staple sheet 2 delivered from the loading position by the supply device such as the timing belt or the roller is not affected by the step, and is smoothly fed to the guide portion 32a.

Of course, the staple cartridges 11 and 31 of the first and second embodiments can be loaded not only with the above-mentioned staple sheet pack 14, but also with unbound staple sheets 2, 2. Further, the shapes and the like of the staple cartridges 11 and 31 should not be limited to the above-mentioned one embodiment, but should be modified according to the specifications of the electric stapler, and the present invention extends to those modified. It is natural.

[0017]

The staple cartridge according to the first aspect of the present invention can be used repeatedly by replenishing the staple sheet, and since it does not need to be disposed of, it does not cause problems such as pollution due to incineration and waste of resources. . Also,
For the user, by purchasing only the supplementary staple sheet, the burden of operating cost is reduced, and various effects are exhibited.

According to the second aspect of the present invention, the staple sheets for replenishment are bound together to improve the handleability, and the staple sheet holder can be loaded extremely easily.

[Brief description of the drawings]

FIG. 1 is a perspective view of a staple cartridge and a staple sheet pack according to the present invention.

2A and 2B show a staple cartridge, FIG. 2A is a rear view, and FIG.

FIG. 3 is a perspective view of a staple cartridge with a staple sheet attached.

FIG. 4 is a perspective view showing a bottom surface of a staple sheet pack.

FIG. 5 is a perspective view of a staple cartridge and a staple sheet pack showing a second embodiment.

6A and 6B show a staple cartridge according to a second embodiment, FIG. 6A is a rear view, and FIG.

FIG. 7 shows a staple sheet, (a) is a plan view,
(B) is a front view, (c) is a side view.

FIG. 8 is a perspective view of a conventional staple cartridge.

FIG. 9 is a rear view of a conventional staple cartridge.

FIG. 10 is an explanatory diagram showing a state in which a staple cartridge is attached to an electric stapler.

[Explanation of symbols]

 11,31 Staple cartridge 12,34 Cartridge 13,32 Staple sheet holder 14 Staple sheet pack 15,33 Long hole 16 Pressure plate 17 Convex portion 18 Compression coil spring 19,38 Bottom plate 20 Lock lever 20a Claw 21 Locking hole 23 Window 24 Band 24a tab

Claims (2)

(57) [Claims] 1. A large number of linear staples (1, 1, ...)
A staple cartridge (12) for an electric stapler, in which staple sheets (2, 2, ...) Bonded in parallel with each other are stacked and housed in a cartridge.
And a staple sheet holder (13) inserted into the cartridge (12), the staple sheet holder (13) is formed so as to be pulled out from the cartridge (12) by a predetermined amount, and the staple sheet holder (13) is formed. ), The staple sheet (2, 2 ...) Can be loaded into the staple cartridge. 2. A staple sheet pack in which a number of staple sheets (2, 2 ...) Which can be stored in the staple sheet holder (13) are stacked and bound.