JP2817632B2 - Staple refill cartridge for electric stapler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refill cartridge for replenishing staples which have been consumed by being detached from an electric stapler.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional paper refill cartridge.
Since it is formed like the above and the upper and front are open,
In order to support the filled sheet staples 4, the sheet staples 4 in a stacked state were wound by a binding tape 21 made of paper, and both ends 21a and 21b of the binding tape 21 were adhered as shown by dotted lines.

[0003] After the refill cartridge 22 is attached to the electric stapler, the binding tape 21 is peeled off from the adhesive portion and separated, and is pulled out from one end 21a and removed.

[0004] However, when the binding tape 21 is peeled off, adhesive remains on both ends of the binding tape.
When the binding tape 21 is pulled out, the adhesive 25 is caught between the refill cartridge 22 and the refill cartridge accommodating portion 24 of the cartridge, and the pulling out of the binding tape 21 is not performed smoothly, and the binding tape 21 may be broken in the middle. there were.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a refill cartridge for a stapler for an electric stapler which can solve the above-mentioned drawbacks and can always pull out and remove the binding tape smoothly.

[0006]

In order to achieve the above object, an electric stapler staple refill cartridge according to the present invention is provided detachably on an electric stapler and internally connects straight staples in a sheet form. Filling the stacked sheet staples in a stacked state, at least an upper portion of the refill cartridge is opened, the sheet staples in the stacked state are wound by a binding tape, and both ends of the binding tape are welded and bound, The binding strength of the binding tape itself is set to be larger than the welding strength of the tape.

[0007]

According to the present invention, when the sheet staples are stacked and filled in the refill cartridge, the upper part of the sheet staples is open, so that the sheet staples are held in a stacked state, so that the sheet staples are bound from the sheet staples. The tape is wound and both ends are welded and joined.
Then, the refill cartridge is stored and mounted in a storage portion provided on the electric stapler with the binding tape wound thereon, and then the binding tape is separated from the welded portion into two pieces, and is pulled out from one side and removed.

As described above, when the binding tape is separated into two pieces, the tensile strength of the binding tape is set to be larger than the welding strength of the tape, so that the binding tape is reliably separated from the welded portion. . Further, since the binding tape is welded, the adhesive does not remain on the tape when peeled off. Therefore, the binding tape can be pulled out smoothly and reliably.

[0009]

1A and 1B are perspective views of a refill cartridge according to the present invention as viewed from different directions. This refill cartridge is composed of both side walls 1, a rear wall 2, and a bottom wall 3, and is removably provided in a refill cartridge accommodating portion of the cartridge as described later and replenishes sheet staples 4 as necessary. It is. The sheet staples 4 are formed by connecting straight staples in a sheet shape, are stored in a stacked state in a refill cartridge, and a binding tape 5 is wound therearound. When attaching to the electric stapler, the binding tape 5 is removed.

The refill cartridge is formed by folding a base paper 6 having the shape shown in FIG. That is, the side wall piece 1a and the bottom piece 3a of FIG. 2 are bent inwardly at right angles from the bending lines a and b, respectively, and the bottom pieces 3a are superimposed on each other.
The notch recesses 8 are matched and attached,
Is bent from the folding line c to the inside of the central rear wall piece 2a, and is superposed on the rear wall piece 2a. In addition,
The rear wall portion 2 is composed of a rear wall piece 2a and an overlapping piece 2b.

The notch recess 8 of the bottom piece 3a is used for positioning at the time of sticking, and the holes 10 and 11 which are line-symmetrical in the rear wall piece 2a and the overlapping piece 2b are formed in the refill cartridge accommodating portion of the cartridge. The notches 12 and 13 are recesses for passing a needle feeding member (not shown), and cut out of the rear wall piece 2a. The notch 12 is formed slightly smaller than the notch 13 of the overlapping piece 2b. Also,
The opening 16 which is symmetrical with the center of the rear wall piece 2a and the overlapping piece 2b is for detection by the remaining amount detecting device for the sheet staples 4 provided in the refill cartridge accommodating portion of the cartridge.

Next, when the sheet staples 4 are stacked and filled on the refill cartridge, the sheet staples 4 are filled.
The upper part and the front part are opened, so that the binding tape 5 is wound from above the sheet staple 4 to hold the sheet staples 4 in a stacked state, and both ends 5a and 5b are joined by heat welding. . Ear pieces 17 are formed to project from one end 5a of the binding tape 5.

Incidentally, the tensile strength of the binding tape 5 itself is set to be higher than the welding strength of the tape 5. Further, the strength of the binding tape 5 is set so as to maintain the holding force when the refill cartridge drops, that is, set so as not to be broken when the refill cartridge drops when the sheet staple 4 is filled. preferable. As a tape material satisfying such conditions, it is preferable to use synthetic paper such as YUPO (registered trademark) paper. However, if the above conditions can be satisfied, a plastic tape or a composite tape made of a plurality of materials may be used. And so on.

The refill cartridge having the above configuration is attached to and detached from the cartridge 18 as shown in FIG. This cartridge is provided with a storage portion 19 for a refill cartridge, and is mounted on a main body (not shown) of the electric stapler as necessary to replenish the sheet staples 4. The refill cartridge is stored and mounted in the storage portion 19 of the cartridge. In some cases, the binding tape 5 is inserted into the storage portion 19 in a wound state, and after storage, the ear piece 17 of the binding tape 5 is strongly pulled to separate the binding tape 5 from the welded portion, and then the ear piece 17 is pulled out and pulled out. Remove.

When peeling the binding tape 5, the binding tape 5
Is set to be higher than the welding strength of the tape, so that the binding tape 5 is reliably separated from the welded portion. Also, both ends 5 of the binding tape 5
Since a and 5b are welded and not bonded, no adhesive remains on the tape when peeled off. Therefore,
The binding tape 5 can be pulled out smoothly without being caught between the cartridge and the refill cartridge.

Further, even if the refill cartridge is mistakenly dropped at the time of mounting, for example, the binding tape 5 is not broken, so that the sheet staples 4 can be held in a good laminated state.

The above-described refill cartridge is open at the top and front, but it is sufficient that at least the top is open except for the staple discharge port at the lower front end.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are perspective views of a refill cartridge according to the present invention as viewed from above and below, respectively.

FIG. 2 is an expanded view of the refill cartridge.

FIG. 3 is an explanatory view of a mounting mode of the refill cartridge.

FIG. 4 is an explanatory view showing a winding state of a binding tape in a conventional refill cartridge.

[Explanation of symbols]

 4 Sheet staple 5 Binding tape

Claims (1)

(57) [Claims] 1. A refill cartridge which is removably provided on an electric stapler and which is filled with sheet staples in which straight staples are connected in a sheet shape in a stacked state and at least an upper part of which is opened. An electric motor characterized in that the stacked sheet staples are wound with a binding tape, and both ends of the binding tape are welded and bound, and the tensile strength of the binding tape itself is set to be greater than the welding strength of the binding tape. Staple refill cartridge for stapler.