JPH04122474U - Staple cartridge in electric stapler - Google Patents

Abstract

(57) [Summary] [Structure] In a cartridge A in which the sheet staples 1 stored therein are sent out from the outlet 4 by a feeding means such as the feeding belt 7, the storage section 2 of the cartridge is transferred to the sheet staple 1 by the feeding belt 7. It was formed so as to be inclined rearward with respect to the feeding direction. [Effect] When the rear end of the lowermost sheet staple 1a moves to the vicinity of the outlet 4, the front part of the second sheet staple 1b from the bottom is the same as the lowermost sheet staple 1.
Overlaps the rear end of a. Since the front end position of the sheet staples 1 stacked in multiple stages shifts toward the rear as it goes up, concentration of the load on the entire sheet staple is eliminated.
Further, the feed belt 7 does not bend. Therefore, folding of the sheet staple 1 and feeding of two sheets is prevented.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention eliminates sheet folding of the sheet staples stored inside. Sequentially attached to and detached from the electric stapler body to be supplied to the needle ejecting part side of the electric stapler body Concerning a flexible staple cartridge.

0002

[Prior art]

An electric stapler that emits straight staples after forming them into a U-shape. The stapler is made by connecting straight staples in a sheet shape on the main body of the stapler. Equipped with a removable cartridge that stores sheet staples in multiple layers. At the same time, sheet staples are brought out one by one from the cartridge to form a forming means. A staple feeding device that supplies staples to a staple ejecting section provided with ejecting means is known. (For example, Publication No. 1-11428). Briefly, it is shown in Figure 3. The lowermost sheet staple 1a is drawn out into the storage section 2 of the cartridge A so that An outlet 4 is formed to allow the feeder to The bottom of the storage section 2 is open in order to be able to feed the lower surface of the pulley 1a. It is released. On the other hand, the bottom of the cartridge A is attached to the main body of the electric stapler. The lowermost sheet staple 1a is driven by a motor to a position facing the An endless feed belt 7 is provided which abuts the lower surface of the belt. Then, drive the motor. Due to the movement of the driven feed belt 7, the sheet staple 1a in the lowermost stage is They are sequentially supplied from the outlet 4 to the needle ejecting section 6 side.

0003 By the way, after the lowest sheet staple 1a sent out by the feeding belt, When the end is near the outlet, the front end of the second sheet staple 1b from the bottom is It overlaps the rear end of the sheet staple 1a at the bottom row, and the rear end is placed downwardly on the feed belt 7. Garu. In addition, the electric stapler itself moves up and down during binding, but the Cartridge A also vibrates in the vertical direction, and this vibration causes the seat stay in storage section 2 to Since the pull 1 moves backward as a whole, the front end of the sheet staple 1 and the storage section 2 A gap is created between the front wall 2a and the rear end is pressed against the rear wall 2b of the storage section 2. It becomes. An inclined surface is provided in front of the outlet 4 of the cartridge A. The inclined surface makes it easy to pull out the second stage sheet staple 1b. did Therefore, the lowermost sheet staple 1a is ejected from the outlet 4 by a predetermined amount. The rear part of the second stage sheet staple 1b comes into contact with the feed belt 7. However, when the sheet staples 1b of the second stage are fed forward, they are positioned above it. The sheet staple is fed forward by the gap formed by the inclined surface. The state will be as follows. Therefore, the front part of the second tier sheet staple 1b is sandwiched between the rear end of the sheet staple 1a and the front end of the third sheet staple 1c. When this happens, a large shearing force is applied to the front part of the second stage sheet staple 1b. When the vibration of the electric stapler itself is added to this, sheet staples 1b may break and block the outlet 4. Also, the sending bell Also at point 7, the shear-responsive portion is bent due to load concentration. The deflection is near the outlet 4 As a result, the outlet port 4 widens and the two sheet staples 1a and 1b overlap. Phenomena that are derived as they are may occur.

0004

[Purpose of invention]

The present invention solves the above-mentioned drawbacks, and especially prevents the sheet staple from breaking inside the cartridge. Sheet staples can be stably fed without double-sheet feeding. Its purpose is to provide a staple feeding device for an electric stapler. .

[0005]

[Means to achieve the purpose]

In order to achieve the above object, a staple cartridge in an electric stapler according to the present invention is provided. The cartridge is a sheet staple made by connecting straight staple needles in a sheet shape. By opening at least a portion of the bottom of the storage compartment that stores the A car with an outlet for the lowermost sheet staples is installed at the lower end of the front wall of the storage section. In the cartridge, place the storage section of the above cartridge in the sheet staple feeding direction. It is characterized by being formed so as to be inclined backwards.

[0006]

[Function and effect of the idea]

In the above configuration, after being attached to the electric stapler main body, the feeding means is moved by the motor. from the open bottom of the storage compartment to remove the lowest seat stem in the cartridge. The needle is led out from the outlet and supplied to the needle ejecting section. The rear end is the outlet When moved to the vicinity, the front part of the sheet staple in the second row from the bottom is It overlaps the back edge of the sheet staple and the back edge goes down.

[0007] By the way, the storage section is tilted backwards with respect to the feeding direction of sheet staples. , the front end position of sheet staples stacked in multiple stages is It goes down. Therefore, the front part of the second sheet staple from the bottom is It appears to be caught between the rear end of the toss staple and the front end of the third sheet staple from the bottom. Even if the sheet staples in the 3rd, 4th, 5th, and higher tiers are The effect of the weight on the front part of the second tier sheet staple mentioned above becomes smaller and smaller. It's getting smaller. In other words, the impact of other sheets on the front of the second tier sheet staple The staple load is maximum at the third stage and gradually decreases from there. In this way, attach the sheet staples of the third and higher tiers in front of the second tier of sheet staples. The load will not be concentrated on the front of the second tier sheet staple. The shearing force applied will be very small and there is no risk of the sheet staple breaking. In addition, since the concentration of load on the entire sheet staple is eliminated, it can be used as a feeding means. If a feed belt is used, there will be almost no deflection of the feed belt. others Since the exit port does not widen, there is no need to inconvenience such as feeding two sheet staples. This also prevents Therefore, according to the present invention, sheet staples are always stably stapled. can be supplied to

[0008]

【Example】

Embodiments of the present invention will be described below with reference to the drawings. In addition, Figure 1 shows the staple An explanatory cross-sectional view of the staple cartridge, Figure 2 shows the main parts of the staple cartridge. FIG. 3 is an explanatory diagram of a conventional staple cartridge.

[0009] In FIGS. 1 and 2, reference numeral A indicates a cartridge for an electric stapler. this car Torridge A is a sheet staple made by connecting straight staple needles in a sheet shape. It is equipped with a storage section 2 that stores the modules 1 in a stacked state in multiple stages, and the storage section 2 is located at the rear. It is formed at an angle. In addition, on both sides of the lower end of the storage section 2, there is a bottom shelf that protrudes inward. Support pieces 3 are formed to support both ends of the sheet staple 1a, and are attached to the bottom of the storage section 2. The portion is open except for the support piece 3. Also, under the front wall 2a of the storage section 2, An outlet 4 for the lowermost sheet staple 1a is formed at the end, and further in front of the outlet 4. A guide portion 5 for guiding the upper surface of the sheet staple 1 that has been led out is protrudingly provided on the side. There is.

0010 Next, attach the staple at the front end of sheet staple 1 to the electric stapler body. A needle ejecting unit 6 that bends and forms the staple needle into a letter shape and then ejects the formed staple needle. is provided, and sheet staple 1 in the installed cartridge A is provided. A staple feeding device is provided which sequentially supplies the staples to the staple ejecting section 6 starting from the lowest one. I'm being kicked. This feeding device is located at a position facing the bottom of cartridge A. The feed belt 7 at the end and the motor (not shown) that drives the feed belt 7 It is composed of

[0011] In the above configuration, the feed belt 7 is moved by operating the motor. . The lowermost sheet staple 1a in the cartridge A is placed on the upper surface of the feed belt 7. Since the lower surfaces are in contact and there is a frictional force between the two, the lowermost seat stem The pulley 1a moves following the movement of the feed belt 7, and is led out from the outlet 4 and fed to the gas. It is guided to the side part 5 and supplied to the needle ejecting part 6 side.

0012 The rear end of the lowest sheet staple 1a fed out by the feeding belt 7 is guided out. When moved to the vicinity of the opening 4, the front part of the second sheet staple 1b from the bottom is It overlaps the rear end of the sheet staple 1a at the bottom row, and the rear end is placed downwardly on the feed belt 7. Garu. In addition, cartridge A is caused by the vertical movement of the electric stapler body during binding Because of the vibration, the entire sheet staple 1 in the storage section 2 moves backwards and the sheet staple A gap is created between the front end of the toss staple 1 and the front wall 2a of the storage section 2, and the seat staple The rear end of the pull pull abuts against the rear wall 2b of the storage section 2. By the way, storage section 2 is a sheet Because it is tilted backwards with respect to the feeding direction of table 1, the sheet stock stacked in multiple stages The front end position of the table 1 shifts backward as it goes up. For this reason, Figure 1 As shown in the figure, the front part of the second sheet staple 1b from the bottom is attached to the bottom sheet staple. It is caught between the rear end of the staple 1a and the front end of the third sheet staple 1c from the bottom. Even if the sheet staples in the 3rd, 4th, 5th and higher stages The influence of the load on the front part of the second stage sheet staple 1b is gradually It gets smaller. In other words, the effect of other sheets on the front part of the second stage sheet staple 1b is The load of the toe staple is maximum at the 3rd stage and gradually decreases after that. Ku. In this way, the third or higher tier sheet staples are placed in front of the second tier sheet staple 1b. Since the load of the staples is not applied intensively, the second sheet staple 1 The shearing force on the front part of b becomes very small, and the second stage sheet staple 1b The chance of it breaking is very small. In addition, the concentration of load on the entire sheet staple 1 is eliminated. Therefore, the feed belt 7 hardly bends. For this reason, the outlet 4 does not spread, preventing the inconvenience of feeding two sheet staples. be done.

[0013] In addition, in the above example, the sheet staple feeding means in the cartridge and Although a feeding belt is employed, the feeding means is not limited to this. For example, sending The sheet staples may be sequentially fed by rollers or the like.

[Brief explanation of drawings]

FIG. 1 is an explanatory cross-sectional view of a staple cartridge in an electric stapler according to the present invention.

FIG. 2 is an enlarged sectional view of essential parts of the staple cartridge.

FIG. 3 is an explanatory diagram of a conventional staple cartridge.

[Explanation of symbols]

A Cartridge 1 sheet staple 2 Storage part 2a Front wall 3 Support piece 4 Outlet 5 Guide part 7 Feed belt

Claims (1)

[Scope of utility model registration request] Claim 1: At least a part of the bottom of a storage section for storing sheet staples formed by connecting straight staple needles in a sheet-like manner in a stacked state in multiple stages is opened, and a lower end of the front wall of the storage section is opened. What is claimed is: 1. A staple cartridge for an electric stapler, characterized in that the cartridge has an outlet for sheet staples in the lowermost stage, and the storage portion of the cartridge is formed to be inclined rearward with respect to the feeding direction of the sheet staples.