JP2003145505A - Staple cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it easy to supplement a motor driven stapler with staples. SOLUTION: An aperture part 4 is formed on a rear surface of a staple cartridge. A sliding door 6 is provided to the aperture part 4. The sliding door 6 is maintained at a closing position with a tensile coil sprint 7. When the sliding door 6 is pushed down, a pushing plate 9 also goes down by being pushed with the sliding door, the aperture part 4 is opened and a staple pack 21 can be inserted into the cartridge. The staple can be supplemented under a state wherein the staple cartridge 3 is equipped to the motor driven stapler 1 and a labour for attaching and detaching the staple cartridge is not required.

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,
In particular, the present invention relates to a staple cartridge which improves the workability of replenishing staples.

[0002]

2. Description of the Related Art An electric stapler using a staple cartridge containing linear staples is known. A staple sheet in which linear staples are bonded in parallel is stacked and accommodated in the staple cartridge, and the linear staples are formed into a gate shape by a forming plate of an electric stapler and ejected by a driver.

In the past, when the staples in the staple cartridge have been completely consumed, the entire staple cartridge has been replaced, but the staple sheets can be replenished while saving resources and reducing waste. Such staple cartridges have become popular. This kind of staple cartridge is formed so that the top cover or the bottom cover of the staple accommodating portion can be opened to supplement the staple sheet provided for refilling. However, when replenishing the staple cartridge with staples, it is necessary to remove the staple cartridge from the electric stapler, open the staple cartridge cover, close the cover after loading the staple sheet, and set the staple on the electric stapler. The problem is that

Therefore, there arises a technical problem to be solved in order to facilitate the staple replenishing work to the staple cartridge, and the present invention aims to solve the above problem.

[0005]

DISCLOSURE OF THE INVENTION The present invention is proposed to achieve the above-mentioned object, and is a staple cartridge which is attachable to and detachable from a cartridge accommodating chamber of an electric stapler, in which linear staples are adhered in parallel. In a staple cartridge formed so that a staple pack in which sheets are stacked and accommodated can be loaded,
An opening is formed on one side of the staple accommodating chamber of the staple cartridge, an openable and closable door is provided in the opening, and the staple pack is loaded by opening the door while the staple cartridge is attached to the cartridge accommodating chamber of the electric stapler. The present invention provides a staple cartridge configured so that it can be performed.

Further, the present invention provides a staple cartridge in which the opening portion of the staple cartridge is arranged in the same direction as the opening portion of the cartridge storage chamber of the electric stapler when the staple cartridge is mounted in the cartridge storage chamber of the electric stapler. .

The door is a slide door which can slide up and down, and provides a staple cartridge in which the slide door is biased to a closed position by a spring. Also, the door is a slide door that can slide up and down, and the end of the pressing plate that elastically contacts the staple sheet in the staple cartridge is projected into the moving path of the sliding door so that the sliding door becomes the pressing plate when the sliding door is opened. The present invention provides a staple cartridge configured so that the pressing plate is retracted from the opening by being engaged with the staple cartridge.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a driver unit of an electric stapler, which is arranged inside a copying machine (not shown) in a posture in which the upper and lower sides of the copying machine are reversed from the normal state, and the clincher is located above the driver unit 1. The staples are ejected toward the unit (not shown).
The staple cartridge 3, which is detachable from the cartridge accommodating portion 2 of the driver unit 1, has an opening 4 formed on the back surface thereof, and a slide door 6 is engaged with a vertical guide rail portion 5 formed at the rear ends of the left and right side surfaces. I am fit. The slide door 6 is pulled upward by tension coil springs 7 installed on the upper and left side surfaces of the staple cartridge 3 and the slide door 6. Also, staple cartridge 3
A pressing plate, which will be described later, is built into the inside of the, and the pressing plate is pushed upward by a compression coil spring 8 installed on the inner bottom surface. A groove (not shown) is formed in the center lower end of the front surface (surface inside the cartridge) of the slide door 6, and the rear end of the pressing plate projects to the position of the groove.
As shown in FIG. 2, when the slide door 6 is pushed down, the rear end of the pressing plate 9 engages with the groove and the pressing plate 9
Also descends at the same time.

FIG. 3 shows a driver unit 1 of the electric stapler.
21 Shown with the staple cartridge 3 installed,
Is a paper staple pack for refilling, and the staple pack 21 stores a predetermined number of staple sheets 22 in a stack. In the figure, the staple pack 21 has windows formed on the lower surface, the upper surface, and the front and rear surfaces, and the pressing plate 9
Enters the window on the lower surface and contacts the lower surface of the staple sheet 22, and the feed claw inside the staple cartridge 3 contacts the front portion of the upper surface of the staple sheet 22.

To load the staple pack 21 into the staple cartridge 3 without removing the staple cartridge 3 from the electric stapler, the slide door 6 and the pressing plate 9 are pushed downward as shown in FIG. Insert the staple pack 21 into the staple cartridge 3. When the pushing down of the slide door 6 is released after the staple pack 21 is inserted, as shown in FIG. 4, the slide door 6 is pulled to the initial position by the elastic force of the tension coil spring 7, and the back surface of the staple pack 21 is covered. . The pressing plate 9 elastically contacts the lower surface of the staple sheet 22 in the staple pack 21 and presses it against the inner ceiling surface of the staple cartridge 3, and the pressing plate 9 rises as the number of staple sheets 22 decreases. Sliding door 6 when staples are used up
Is immediately pushed down against the elastic force of the tension coil spring 7 to pull out the empty staple pack 21 and a new staple pack is loaded, so that the staple cartridge can be used immediately, and there is no need to attach and detach the staple cartridge, and the staple can be easily replenished.

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

[0012]

As described above, since the staple cartridge of the present invention is configured so that the door provided at the opening on the rear surface can be opened to load the staple, the staple cartridge can be easily mounted on the electric stapler. The staples can be replenished.

Further, since the door is formed as a sliding door so that the sliding door is returned to the closed position by the spring, the opening and closing of the door is easy and the operability is improved. Further, since the pressing plate inside the staple cartridge is formed to move to the retracted position in conjunction with the slide door, the staples can be loaded only by opening the door, and the operability is further improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a staple cartridge and an electric stapler showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a staple cartridge with a slide door opened.

FIG. 3 is a perspective view showing a state in which a staple cartridge is attached to an electric stapler.

FIG. 4 is a perspective view showing a state in which staples are loaded in a staple cartridge.

[Explanation of symbols]

3 staple cartridge 4 openings 5 Guide rail section 6 sliding door 7 Tension coil spring 8 compression coil spring 9 Press plate 21 Staple pack 22 Staple sheet

Claims (4)

[Claims] 1. A staple cartridge detachably mountable to a cartridge accommodating chamber of an electric stapler, wherein the staple cartridge is formed so that a staple pack in which staple sheets in which linear staples are adhered in parallel are stacked and accommodated can be loaded is a staple cartridge. An opening is formed on one side surface of the staple accommodating chamber, an opening / closing door is provided in the opening, and a staple pack can be loaded by opening the door with the staple cartridge mounted in the cartridge accommodating chamber of the electric stapler. A staple cartridge characterized in that 2. A state in which a staple cartridge is mounted in a cartridge storage chamber of the electric stapler,
The opening of the staple cartridge is arranged in the same direction as the opening of the cartridge accommodating chamber of the electric stapler.
The staple cartridge described in 1. 3. The staple cartridge according to claim 1, wherein the door is a slide door that can slide up and down, and the spring biases the slide door to a closed position. 4. The slide door is a slide door that can slide up and down, and an end portion of a pressing plate elastically contacting a staple sheet in a staple cartridge is projected to a movement path of the slide door so that the slide door is opened when the slide door is opened. 2. The staple cartridge according to claim 1, wherein the staple cartridge is configured to engage with the pressing plate so that the pressing plate retracts from the opening.