JP2000027823A - Roll staple - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve handling property of a roll staple for filling to a staple cartridge. SOLUTION: A rear end part of a belt 22 is stock on a tip end part of an outer peripheral side of a roll staple 21 wound in a roll shape by sticking multiple linear staples in parallel with each other, and the belt 22 is wound. The tip end part of the belt 22 is stuck on an outer peripheral surface of the belt 22 wound around the roll staple 21. A width of the belt 22 is formed narrower than the roll staple 21, a tab part 22a having a wide width is formed on its tip end so as to easily find out the tip end of the belt 22. When the tab part 22a is grasped and tensed, the belt 22 is released, and thereby, the belt 22 is separated and taken out from a tip part of the roll staple 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll staple, and more particularly to a roll staple which can be easily loaded on a staple cartridge.

[0002]

There is known an electric stapler which uses a roll staple in which a number of linear staples are adhered in parallel and wound into a roll. Roll staples are used by being stored in a staple cartridge, and in the past it was common to replace the entire staple cartridge when finished using staples,
In view of the trouble, cost, resource saving, destruction of the natural environment, and the like associated with waste disposal, staple cartridges that can be replenished and that can be used repeatedly have been proposed.

In this type of staple cartridge, a roll of staple is loaded into a staple loading chamber by opening a lid of the cartridge, and a leading portion of the staple is inserted into a thin guide groove close to a staple wire diameter, and a staple guide table is inserted. Although it is formed so as to be introduced above, it takes time to insert the leading portion of the roll staple into the guide groove and feed it to the front of the staple guide table, and at this time, drop the roll staple or wind the roll staple However, there is a problem that inconvenience such as loosening is likely to occur.

[0004] Then, there arises a technical problem to be solved in order to improve the handleability of the roll staple, and an object of the present invention is to solve the above problem.

[0005]

SUMMARY OF THE INVENTION The present invention proposes to achieve the above object, and in order to load a staple cartridge, a large number of linear staples are adhered in parallel and wound into a roll. A roll staple, a tab portion having an increased width is formed at the leading end of the belt narrower than the roll staple, the rear end of the belt is adhered to the outer peripheral end of the roll staple and wound around the roll staple, An object of the present invention is to provide a roll staple in which a leading end portion of a belt is releasably adhered to an outer peripheral surface of the belt and a roll staple is bound.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a staple cartridge 1, and FIG. 2 shows a state in which a front cover 2 is opened. In the staple cartridge 1, a guide portion 4 extends forward from below the staple storage portion 3, and an internal space of a staple loading chamber 5 in the staple storage portion 3 has a substantially cylindrical shape.

The front cover 2 is hinged to the upper portions of the left and right wall surfaces of the staple accommodating portion 3. The front cover 2 can be opened to load roll staples into the staple loading chamber 5. As shown in FIG. 1, when the front cover 2 is closed, there is a gap between the lower edge of the front end of the front cover 2 and the guide portion 4, and a roll staple belt described later can be pulled out from this gap. It has become.

As shown in FIG. 2, openings 6 are formed in the left and right centers of the bottom of the staple loading chamber 5 to expose the left and right central portions of the upper surface of the staple guide table 7, and the concave surfaces on the left and right sides of the opening 6 are formed. Roll staples are placed on the bottom surfaces 8L and 8R of the shape. On the left and right sides near the rear end of the opening 6, the staple loading table 5 provides a staple guide table 7.
The staple guide grooves 9L and 9R are formed.

A front surface lid 2 curved in an arc shape has a bottom surface portion 2a extending in a circumferential direction from a central portion of a front end.
When the lid is closed, the bottom surface 2a is substantially flush with the bottom surfaces 8L and 8R of the staple loading chamber 5, and covers the portion of the opening 6 that is forward of the staple guide grooves 9L and 9R.

As shown in FIG. 3, the staple guide table 7 is disposed in the guide section 4, and the sheet staple fed forward on the staple guide table 7 abuts on the front end plate 10 attached to the guide section 4. And stop. The driver and the forming plate of the electric stapler (not shown) move up and down in the gap between the guide portion 4 and the front end plate 10, and the driver ejects the staples in the front row, and at the same time, the forming plate moves to the third row of linear staples. The left and right ends are bent downward to form staples in a gate shape.

A driven cam plate 11 slidable in the front-rear direction is mounted below the staple guide table 7. The cam plate 11 is urged forward by a spring 12, and the front inclined surface is formed by the guide portion 4 and the front end plate. 10 protrudes into the gap. The two ratchet-type feed claws 13 and 14 provided on the cam plate 11 project upward through holes provided in the staple guide table 7, and are provided on the lower surface of the sheet staple when there is a sheet staple on the staple guide table 7. Crimp.

At the time of staple ejection by the electric stapler, the descending driver comes into contact with the front end inclined surface of the cam plate 11 to retreat the cam plate 11, and the feed claws 13,
14 retreats while contacting the lower surface of the sheet staple.
When the driver rises past the bottom dead center, the cam plate 11 released from the pressing by the driver moves forward, and at this time, the feed claws 13 and 14 engage with the concave portions between the staples of the sheet staple, and the sheet staple is released. Send forward.

A staple detection lever 15 is attached to the rear of the cam plate 11 so as to be vertically rotatable, and is biased by a spring (not shown) in a direction in which the front end rises. As shown in FIG. 3, when there is no sheet staple on the staple guide table 7, the front end of the staple detection lever 15 projects upward through a hole in the staple guide table 7, and when there is a sheet staple, the sheet staple is used. It is pushed down.

The electric stapler is provided with a photo interrupter located at the rear end of the staple detection lever 15, and when the rear end of the sheet staple passes the front end of the staple detection lever 15, the staple detection lever is turned off. The front end of the projection 15 projects upward from the hole of the staple guide table 7, and the rear end thereof descends and enters between the light emitting element and the light receiving element of the photo interrupter. At this time, the output of the photo interrupter is turned off, and the control circuit of the electric stapler prohibits the start of the motor by the off signal of the photo interrupter, and the start prohibition state continues until the staples are replenished.

FIG. 4 shows a roll staple 21.
As shown in (a), a belt 22 such as paper or a resin film is provided to the user in a state of being wound around the outer periphery.
The rear end of the belt 22 is adhered to the leading portion of the roll staple 21, the belt 22 is wound around the roll staple 21, and the vicinity of the leading end of the belt 22 is adhered to the outer peripheral surface.

The belt 22 is adhered with an adhesive such as a peelable adhesive type. When the outer peripheral side adhesive portion a1 of the belt 22 is peeled, the belt 22 is released as shown in FIG. Then, the roll staple 21 is fixed, and the belt 2 is further fixed.
When 2 is pulled, the adhesive portion a2 at the rear end of the belt 22 is peeled from the leading portion of the roll staple 21.

A wide tab portion 22a is provided at the head of the belt 22.
The width of the tab portion 22 a is wider than the width of the staple loading chamber 5 of the staple cartridge 1, and the width of the other belt portions 22 b is smaller than the width of the bottom opening 6 of the staple loading chamber 5. ing.

Next, the procedure for loading the roll staples 21 into the staple cartridge 1 will be described with reference to the schematic diagrams of FIGS. FIG. 5 shows staple cartridge 1
In this state, the roll staple 21A is consumed, and the rear end of the staple detection lever 15 has moved forward from the front end of the staple detection lever 15 described above.

As shown in FIG. 6, when the front cover 2 is pivoted upward to open the staple loading chamber 5, and a new roll staple 21B is inserted into the staple loading chamber 5, FIG.
Is wider than the width of the staple loading chamber 5, and therefore cannot enter the staple loading chamber 5 and stays outside the staple loading chamber 5.

As shown in FIG. 7, when the front cover 2 is closed, the belt 22 comes out of the staple loading chamber 5 from between the lower surface of the bottom surface 2a of the front cover 2 and the opening 6. When the tab portion 22a of the belt 22 is pulled forward, the roll staples 21B rotate in the staple loading chamber 5, and the outer peripheral side adhesive portion of the belt 22 is peeled off, and the belt 22 is pulled out.

As shown in FIG. 8, the leading end of the roll staple 21B is pulled forward by the belt 22 and moves forward along the inner peripheral surface of the staple loading chamber 5, and the left and right staple guide grooves of the opening 6 are formed. 9L and 9R are introduced. The leading end of the roll staple 21B advancing on the staple guide table 7 pushes down the front end of the staple detection lever 15 and stops against the rear end of the staple 21A remaining in the guide portion 4 to stop moving forward.

If the belt 22 is further pulled, FIG.
As shown in (2), the rear end of the belt 22 is peeled off from the leading end of the roll staple 21B and taken out, and the staple cartridge 1 is in a reusable state.

When the roll staples 21 are loaded into the staple cartridge 1 in which no staples remain, the leading portion of the staples is pulled into the staple guide table 7 to some extent, and the staples and the staples are aligned with the belt 22 in the tension direction. When the adhesive portion of the staple comes, the staple stops moving forward and the belt 22
Peeled from 1.

The present invention is not limited to the above-described embodiment, and various modifications are possible within the technical scope of the present invention, and it goes without saying that the present invention extends to those modifications. is there.

[0025]

As described above, the roll staple of the present invention has the belt attached to the outer periphery and the roll staple is tied up, so that the roll staple does not loosen due to vibration during transportation and the like. When loading the staple cartridge, the belt can be easily removed from the roll staple by pulling the head of the belt. Also, by providing a wide tab at the top of the belt,
The handleability is good, for example, the head of the belt to be grasped by a finger can be easily found, and the direction in which the roll staples are loaded can be easily determined from the winding direction of the belt.

[Brief description of the drawings]

FIG. 1 is a perspective view of a staple cartridge.

FIG. 2 is a perspective view of the staple cartridge of FIG. 1 with a front cover opened.

FIG. 3 is a side sectional view of the staple cartridge of FIG. 1;

4A and 4B show a roll staple of the present invention, in which FIG. 4A is a perspective view of an unused state, and FIG. 4B is a perspective view of a state where a belt is released.

FIG. 5 is an explanatory view showing a procedure for loading a roll staple into the staple cartridge, and is a schematic view showing a state where the roll staple is empty;

FIG. 6 is an explanatory diagram of the roll staple loading procedure subsequent to FIG. 5, and is a schematic view showing a state in which a lid of a staple cartridge is opened.

FIG. 7 is an explanatory view of the roll staple loading procedure following FIG. 6, and is a schematic view showing a state in which a lid of the staple cartridge is closed.

8 is an explanatory view of the roll staple loading procedure subsequent to FIG. 7, and is a schematic view of a state in which a tab of the roll staple is pulled out. FIG.

FIG. 9 is an explanatory view of the roll staple loading procedure subsequent to FIG. 8, and is a schematic view showing a state where the roll staple loading is completed.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 staple cartridge 2 front cover 3 staple accommodating section 4 guide section 5 staple loading chamber 6 opening 7 staple guide table 8L, 8R bottom section 9L, 9R staple guide groove 21 roll staple 22 belt 22a tab section 22b belt section

Claims (1)

[Claims] 1. A roll staple in which a plurality of linear staples are adhered in parallel and wound into a roll for loading into a staple cartridge, wherein the belt (22) has a width smaller than that of the roll staple (21). A tab (22a) with an enlarged width is formed at the leading end, and the rear end of the belt is adhered to the outer peripheral end of the roll staple and wound around the roll staple, and the leading end of the belt can be peeled off the outer peripheral surface of the belt. A roll staple that is tied to a roll staple by bonding to a staple.