JPH0653075U - Magazine operation guide device for electric stapler - Google Patents

Abstract

(57) [Summary] [Structure] The ejection portion 3 in which the magazine 1 having the driver plate 13 for ejecting staples is supported by the frame 2.
And a clincher portion 4 for bending the leg portion of the staple ejected by the ejection portion 3,
The frame 2 and the magazine 1 are provided with a guide mechanism for operating and guiding the magazine 1 in a direction substantially orthogonal to the sheet 27 inserted between the ejection section 3 and the clincher section 4. [Effect] When the magazine 1 operates with respect to the frame 2,
Since the magazine 1 is actuated and guided in a direction substantially perpendicular to the paper 27, the driver plate 13 is also ejected in a direction substantially perpendicular to the paper 27. Therefore, the paper 2
The driver plate 13 can be driven in the direction orthogonal to the paper 27 regardless of the thickness of the sheet 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is an electric stapler in which a punch-out portion for ejecting staples and a clincher portion for bending the leg portion of the staples are separated, and a magazine provided in the above-mentioned ejector portion is moved up and down in a direction substantially orthogonal to the binding sheet. The present invention relates to a magazine operation guide device.

[0002]

[Prior art and its problems]

 In the conventional electric stapler of the type in which the staple driving unit and the clincher unit are rotatably connected at the base, the magazine of the driving unit rotates around the fulcrum, so the driver installed in the magazine also staples. It works like drawing an arc when striking toward the clincher. Therefore, when the thickness of the paper for binding is small, the driving angle of the tip of the driver plate with respect to the surface of the paper becomes close to a right angle, and the position where the tip of the driver plate comes into contact with the paper surface also becomes close to the fulcrum. However, when the thickness of the paper is large, the driving angle of the driver plate with respect to the surface of the paper becomes shallow, and the position where the tip of the driver plate abuts the surface of the paper becomes far from the fulcrum.

As described above, the stapler of the type in which the driving portion is rotated and driven has the drawback that the core position of the driver plate and the penetration angle of the staple are changed depending on the size of the sheet.

[0004]

[The purpose of the device]

 The present invention solves the above-mentioned drawbacks and provides a magazine operation guide device for an electric stapler that can drive the driver plate at right angles to the paper regardless of the thickness of the paper, and always perform good binding at the same position. Its purpose is to provide.

[0005]

[Means for Achieving the Object] In order to achieve the above-mentioned object, an operation guide device for a magazine in an electric stapler according to the present invention has a magazine provided with a driver plate for ejecting staples supplied from a staple accommodating portion in a frame. The frame includes a supporting ejection portion and a clincher portion for bending the leg portion of the staple ejected by the ejection portion.The frame is provided with an electric motor and a reduction gear linked to the electric motor, and one end thereof. It is linked to the final control gear of the reduction gear and rotatably supports the middle part of the drive link whose other end is engaged with the front end of the magazine ejecting device. A guide mechanism that guides the magazine in a direction substantially orthogonal to the paper inserted between the clincher and the clincher It is characterized in that form.

The embossing section and the clincher section may be separated from each other.

[0007]

[Function and effect of the device]

 According to the above construction, after inserting the sheet between the ejection section and the clincher section, the drive link is swung by the electric motor and the reduction gear to operate the magazine. At this time, the magazine is actuated and guided in a direction substantially perpendicular to the paper, and the driver plate is also ejected in a direction substantially perpendicular to the paper. Therefore, the driver plate can be driven in the direction orthogonal to the paper regardless of the thickness of the paper, and the staple core position with respect to the paper is always the same. Therefore, the spelling can be always ensured excellently, and the quality can be stably maintained.

[0008]

【Example】

 FIG. 1 shows an electric stapler. The electric stapler includes a punching section 3 in which a frame 1 supports a magazine 1 equipped with a punching apparatus for punching out staples in a staple storage section, and staples punched by the punching section 3. The clincher part 4 for bending the legs is separated from the upper and lower parts.

An electric motor 5 and a reduction gear 6 linked to the electric motor 5 are arranged on the frame 2. An intermediate portion of the drive link 7 is rotatably supported on the left and right side walls of the frame 2, and the rear end of the drive link 7 engages with the cam 8 of the final control gear of the reduction gear 6 and the front end thereof. It is engaged with the front end of the ejection device of the magazine 1. A support shaft 9 is provided at an intermediate portion of the drive link 7, and the support shaft 9 is supported by long holes 10 formed on the left and right side walls of the frame 2 so as to extend upward and downward. A paper thickness adjusting spring 12 is attached to the engaging piece 11 formed at the lower part of the sheet 2.

Further, the magazine 1 is provided with a staple storage section and an ejection device in a box-shaped magazine body 1a. The staple storage section is composed of a removable cartridge. The staples are formed by forming straight staple materials into a sheet, and are stacked and stored in the cartridge. The sheet-like staples in the cartridge are sequentially fed to the ejection device side by a feeding mechanism (not shown) from the bottommost one. The ejecting device connects a forming plate for forming staples fed by the feeding mechanism into a U-shape and a driver plate 13 for ejecting the formed staples. A projecting piece 14 is formed on the front wall of the magazine body 1a as a slit 15. And the front end 7a of the drive link 7 is connected to the connecting shaft 16 penetrating the projecting piece 14. Then, when the connecting shaft 16 moves, the driver plate 13 and the forming plate operate along the inner surface of the front wall of the magazine body 1a.

The mechanism for carrying the staples and the process for feeding the staples in the cartridge to forming and ejecting the staples is the same as the mechanism provided for the known electric stapler, and therefore the description thereof is omitted here. Then, only the driver plate 13 is shown.

Next, the frame 2 and the magazine 1 are formed with a guide mechanism for operating and guiding the magazine 1. That is, as shown in FIG. 3, vertically long vane plates 18 are formed at the front and rear of both side walls of the magazine body 1a, and convex portions 19 are formed at the side portions of the vane plates 18. On the other hand, vertically long guide holes 20, 21 and 22 which are long in the vertical direction are formed through the front portion, the center portion and the rear portion of both side walls of the frame 2. The connecting shaft 16 of the driving portion of the magazine 1 and the convex portion 19 of the magazine body 1a are slidably engaged with the vertically elongated guide holes 20, 21, 22 of the frame 2, whereby the magazine 1 is attached to the frame 2. On the other hand, it is supported so as to be vertically movable along the vertically elongated guide holes 20, 21 and 22.

As the guide mechanism, vertically elongated guide holes 20, 21, 22 are formed on both side walls of the magazine, and the convex portions formed on the inner surface of the frame are slidably engaged with the guide holes. Alternatively, the guide ridges may be vertically provided along both side walls of the magazine 1, and a C-shaped member that engages with the guide rod may be formed inside the frame 2. Good.

Further, a spring 25 is attached to the engaging portion 23 protruding upward from the rear of the magazine body 1a and the engaging piece 24 on the side wall of the frame 2, and the spring 25 urges the magazine body 1a downward. Has been done. Similarly, the rear end of the drive link 7 is also urged downward by the return spring 26.

Next, the clincher section 4 is formed by providing a clincher groove 29 on a binding table 28 on which the leading edge of the paper 27 is placed. The clincher groove 29 is a fixed type formed integrally with the binding table 28. Alternatively, the staple leg may be movable, and the staple leg may be bent after the staple leg penetrates the sheet 27.

According to the above configuration, the cam 8 is rotated together with the reduction gear 6 by operating the electric motor 5 after inserting the sheet 27 between the punching section 3 and the clincher section 4, so that the drive link 7 The rear end is pushed up by the cam 8 and swings around the support shaft 9, and the front portion of the drive link 7 operates downward, so that the connecting shaft 16 is also driven downward (see FIG. 2). Therefore, the driver plate 13 of the driving device is also driven downward, but since frictional force acts between the components of these driving devices and the magazine main body 1a, the magazine main body 1a is vertically long with respect to the frame 2. The sheet 27 is guided along the guide holes 20, 21 and 22 so as to move downward in a direction substantially orthogonal to the sheet 27. At the same time, since the driver plate 13 also operates in parallel with the movement trajectory of the magazine body 1a, it moves downward in a direction substantially orthogonal to the paper 27. At this time, the rear portion of the magazine body 1a is also urged downward by the spring 25 so that only the front portion of the magazine body 1a on which the frictional force acts does not move downward and the magazine 1 tilts. , The magazine body 1a moves in parallel to the whole.

The magazine 1 descends until it comes into contact with the surface of the paper 27, but the driver plate 13 descends further, so that the leg portions of the staples that have been ejected penetrate the paper 27 and then the clincher groove 29 of the clincher portion 4. It will be bent and the spelling will be completed.

The sheet 27 that has been spelled can also be discharged by passing between the punching section 3 and the clincher section 4. After the stapling operation, the drive link 7 swings in the opposite direction according to the rotation of the cam 8, so that the magazine 1 also moves upward. At this time, since the magazine body 1a is urged downward by the vane 25, the components of the driving device (driver plate 13, forming plate, etc.) first move up first by the connecting shaft 16, and then the magazine body 1a. 1a moves up.

As described above, since the magazine 1 moves downward with respect to the frame 2 along the vertical guide holes 20, 21, and 22 in the direction orthogonal to the paper 27, the driver can be used regardless of the thickness of the paper 27. The plate 13 can be driven in the direction orthogonal to the sheet 27, and the staple core position with respect to the sheet 27 is always the same. Therefore, the spelling can be always ensured to be good, and the quality can be stably maintained.

The above-mentioned example relates to an electric stapler having a structure in which the launch portion 3 and the clincher portion 4 are separated, but the magazine operation guide device of the present invention has the launch portion and the clincher portion integrally configured. It can also be applied to electric staplers.

[Brief description of drawings]

FIG. 1 is a side view showing a state before operation of an operation guide device for a magazine in an electric stapler according to the present invention.

FIG. 2 is a side view showing an operating state of the guide device for the magazine.

FIG. 3 is a front view of the guide device for the magazine.

[Explanation of symbols]

 1 Magazine 2 Frame 3 Ejection Section 4 Clincher Section 5 Electric Motor 6 Reduction Gear 7 Drive Link 13 Driver Plate 27 Paper

Claims (2)

[Scope of utility model registration request] 1. A frame comprising: a punching-out portion supporting a magazine, which has a driver plate for pushing out staples supplied from a staple storing portion, on a frame; , An electric motor and a reduction gear linked to the electric motor are arranged, one end of which is linked to the final control gear of the reduction gear, and the other end of which is an intermediate portion of the drive link which is engaged with the front end of the ejection device of the magazine. In addition to being rotatably supported, a guide mechanism for guiding the operation of the magazine in a direction substantially orthogonal to the sheet inserted between the punching section and the clincher section is formed in the frame and the magazine of the punching section. A magazine operation guide device for an electric stapler. 2. The magazine operation guide device for the electric stapler according to claim 1, wherein the ejection portion and the clincher portion are formed separately from each other.