JPH04304977A - Device for setting staple in cartridge for electric stapler - Google Patents

Abstract

PURPOSE:To easily and surely set and feed a fixed amount of sheet staples and also to prevent the sheet staples from dropping by wrapping around the sheet staples a wrapping body having a predetermined opening formed therethrough, and putting the sheet staples in the storage portion of a cartridge. CONSTITUTION:To set sheet staples 1 in a cartridge A, a wrapping body 8 is wrapped around the sheet staples 1 and the sheet staples 1 are dropped into the storage portion 2 of the cartridge A. Then the rear projecting piece 16 of a drop-preventing sheet 14 is lowered along the guide groove 6 of the storage portion 2. When the lower end of the wrapping body 8 is supported on the upper face of the support piece 3 of the storage portion 2 and the sheet staples 1 are completely stored, the rear projecting piece 16 is pulled and the drop- preventing sheet 14 is pulled out of a pullout opening. Thereby the lowermost sheet staples 1 are supported on the support piece 3 and have their end made to face the outlet of the storage portion 2. Next the cartridge A is set in an electric stapler main body and the sheet staples 1 are guided by a guide piece 5 and sent out.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staple loading device for loading a fixed amount of sheet staples into a cartridge for an electric stapler.

0002

[Prior Art] In an electric stapler that emits straight staples after forming them into a U-shape, sheet staples made by connecting straight staples in a sheet form are stored in multiple layers on the main body of the stapler. A cartridge is provided with a removable cartridge, and a feeding device for feeding the sheet staples one by one from the cartridge to the forming section and the punching section, and a drive device for driving the forming means and the punching means. is known (for example, Publication No. 1-11428). The storage section of the cartridge is formed with an outlet for leading out the lowest sheet staple, and the bottom of the storage section is formed so that the feeding device can feed the lower surface of the lowermost sheet staple. is open.

[0003] Conventional cartridges are sold with sheet staples loaded in them, and when the sheet staples inside are used up, they are replaced with new cartridges and the used cartridges are discarded. However, since cartridges are required to have high strength to withstand vibrations and the like, they are expensive, and because they can be used over and over again, disposable cartridges are not preferable in terms of resource conservation. However, when loading thin sheet staples into an empty cartridge into the cartridge housing, it is not possible to store a large amount of sheet staples at once, and depending on how much force is applied, the staples may bend or fall down in the middle. , loading work was extremely complicated.

0004

OBJECTS OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned drawbacks and, in particular, to provide a staple loading device that can easily and reliably store sheet staples in a stacked manner in a cartridge.

[0005]

[Means for Achieving the Object] In order to achieve the above object, the staple loading device according to the present invention has a storage section that stores sheet staples formed by connecting straight staple needles in a sheet shape in a stacked state in multiple stages. an electric stapler cartridge, the bottom of which is open leaving support pieces that support both ends of the lowest sheet staple, and an outlet for the lowest sheet staple formed at the lower end of the front wall of the housing; a package formed by wrapping a certain amount of sheet staples in a laminated state to be stored in the storage section; the package is formed in a size that can be stored in the storage section; A drop-off prevention sheet is arranged below the lowermost sheet staple stored in the packaging body to prevent the lowermost sheet staple from falling off; The present invention is characterized in that an extraction opening is formed for extracting the falling-off prevention sheet while the package is stored in the storage section.

[0006]

[Operation] In the above structure, when loading the sheet staple into the cartridge, the sheet staple is dropped into the storage portion of the cartridge while being wrapped in the package. When the package is completely stored in the storage section, the fall prevention sheet is pulled out from the extraction port. As a result, the sheet staples at the bottom of the package face the outlet of the storage section and are ready to be discharged.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be explained with reference to the drawings.

In FIGS. 1 and 2, reference numeral A indicates a cartridge for an electric stapler. This cartridge A is
It is equipped with a storage section 2 that stores sheet staples 1 formed by connecting straight staples in a sheet shape in a stacked state in multiple stages, and on both sides of the lower end thereof, protrudes inward to accommodate both sides of the lowest sheet staple 1a. A support piece 3 supporting the end is formed, and the bottom of the storage section 2 is open except for the support piece 3. Further, an outlet 4 for the lowermost sheet staple 1a is formed at the lower end of the front wall 2a of the storage section 2, and a guide piece 5 for guiding the upper surface of the sheet staple 1 led out is further provided in front of the outlet 4. It is formed. moreover,
A guide groove 6 is vertically formed in the center of the rear wall of the storage section 2, and an extraction port 7 is formed in the lower end thereof.

[0009] 8 is a package. The package 8 is a package in which a certain amount of sheet staples 1 to be stored in the storage section 2 of the cartridge are laminated and packaged using packaging means 9 such as paper or synthetic resin film, and can be stored in the storage section 2. It is formed in size. The packaging means 9 of the package 8 includes the outlet 4 of the storage section 2 and the bottom opening 1.
Openings 11 and 12 (see FIG. 3) corresponding to 0 are formed, and the upper part 13 is also open. Note that these openings may be constructed by cutting away from perforations formed in the packaging means 9.

By the way, as shown in FIG. 3, the lowermost sheet staple 1a housed in the packaging body 8 is provided with a seal to prevent the lowermost sheet staple 1a from falling out of the bottom opening 12 of the packaging means 9. Fall prevention sheet 1
4 is placed. That is, the package 8 stores the sheet staples 1 together with the falling-off prevention sheet 14 in the packaging means 9. An opening 15 is also formed at the bottom of the rear surface of the packaging means 9 to allow the drop-off prevention sheet 14 to be pulled out. A projecting piece 16 is formed to protrude from the rear of the falling-off prevention sheet 14.

[0011] Note that L-shaped holding pieces 17 as shown by dotted lines in the figure may be formed on both sides of the protruding piece 16 side of the falling-off prevention sheet 14. When the fall-off prevention sheet 14 is located inside the package 8, the holding piece 17 holds the outer side of the packaging means 9, and the bottom opening 12 is expanded so that the sheet staple 1 is held together with the fall-off prevention sheet 14. Prevent it from falling off.

In the above structure, when loading the sheet staple 1 into the cartridge A, the sheet staple 1 is dropped into the storage section 2 of the cartridge A while being wrapped in the packaging body 8. At this time, the rear protruding piece 16 of the falling-off prevention sheet 14 is moved downward along the guide groove 6 of the storage section 2. When the lower end of the package 8 is supported by the upper surface of the support piece 3 of the storage section 2 and the package 8 is completely stored in the storage section 2, pull the protrusion 16 to remove the falling prevention sheet 14 from the opening 7. extract it from As a result, the lowermost sheet staple 1a is supported on the support piece 3, and its front end faces the outlet 4 of the storage section 2. Note that, in a normal case, a pressing means (not shown) for pressing the sheet staple 1 in the packaging means 9 downward is arranged in the storage section 2.

Therefore, the cartridge A is mounted on the main body of an electric stapler (not shown), and a feeding device (also not shown) is operated on the lower surface of the sheet staple 1a at the lowest stage to feed it out from the outlet 4. The upper surface of the sheet staple 1a is guided by the guide piece 5 and supplied to the forming section and punching section of the electric stapler. When the lowermost sheet staple 1a is completely taken out from the storage section 2, the second sheet staple 1a is lowered and taken out in the same manner. Thereafter, sheet staples are sequentially drawn out. When all the sheet staples 1 have been supplied, the cartridge A can be removed, the empty packaging means taken out, and a new packaging body loaded in the manner described above.

[0014]

[Effects] As described above, according to the present invention, the sheet staples are loaded into the storage section of the cartridge A while being wrapped in a package, so that the sheet staples do not bend or fall. Since there is no need to store sheet staples one by one, a fixed amount of sheet staples can be loaded easily and reliably. Moreover, since the package is formed with an opening through which the sheet staple outlet of the cartridge A and the feeding device of the electric stapler operate, sheet staples can be supplied even with the package inside. Furthermore, the falling-off prevention sheet attached to the package prevents the sheet staples from falling off before they are loaded into the cartridge A, and after loading, they can be pulled out from the ejection port, which prevents them from interfering with the feeding of the sheet staples. There is no.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of a staple loading device for an electric stapler cartridge according to the present invention.

FIG. 2 is a longitudinal cross-sectional view of essential parts of the cartridge.

FIG. 3 is a rear view of the package.

[Explanation of symbols]

A Cartridge 1 Sheet staple 2 Storage section 3 Support piece 4 Outlet 8 Packaging 11 Opening 12 Opening 14 Fall prevention sheet

Claims (1)

[Claims] Claim 1: The bottom of a storage unit that stores sheet staples formed by connecting straight staples in a sheet shape in a stacked state in multiple stages is opened leaving support pieces that support both ends of the sheet staples in the lowest stage. At the same time, a packaging body comprising an electric stapler cartridge having an outlet for lowermost sheet staples formed at the lower end of the front wall of the storage section, and a certain amount of sheet staples stored in the storage section in a laminated state. The package is formed in a size that can be stored in the storage section, and has an opening that corresponds to the outlet and the opening of the storage section, and has a lowermost part stored in the package. A drop-off prevention sheet is arranged at the bottom of the sheet staples to prevent the lowermost sheet staple from falling off, and the storage section is provided with a sheet for removing the drop-off prevention sheet with the package stored in the storage section. A staple loading device for an electric stapler cartridge, characterized in that an ejection opening is formed.