TWI564122B - Stapler - Google Patents

Description

stapler

The present invention relates to a stapler.

A stapler includes a magazine, a staple can be filled in, a pusher is used to push the staple, and a pusher-spring is used to push the push. Pieces.

In the stapler disclosed in the patent document 1 (JP-Y-36-014408), a tension coil spring is used as the above-described push spring. In this stapler, no element is provided for guiding the push spring, and the staple is guided by the side wall of the butt of the needle. Based on this, the number of parts can be reduced.

In a stapler in which there is no staple guide provided in the magazine, the case causes the staple to roll in the magazine when the staple is filled. In addition, when a small amount of staples remain in the file, the needle box causes the remaining staples to roll in the file, when the retracting pusher is operated.

In a stapler that uses a tension coil spring as a push spring to abut the pusher, when the pusher is retracted, the push spring is exposed in the space in which the staple is to be filled. Therefore, it is more difficult to remove the staple in the rolling state. In addition, when the staple is clamped by the push spring and is to be removed, it may be necessary to carefully push the spring beyond its allowable stress, thereby causing the push spring to lose its function.

On the other hand, it is also known to use compression coil springs (compression Coil spring) as a stapler for pushing a spring, in which the push spring for abutting the pusher is constituted by a compression coil spring for guiding the push spring when the pusher is retracted A shaft is exposed to the space in which the staples are to be filled. Therefore, it is more difficult to remove the staple in the rolling state.

In the stapler disclosed in the patent document 2 (JP-A-2009-012093), a guide member, a staple, and a push spring for guiding the pusher are included.

In the stapler of Patent Document 2, it is possible to avoid rolling in the butt by the guide member staple. However, forming the U-shaped push spring formed by the compression coil spring is a relatively time consuming task.

In general, in a structure in which a tension coil spring is used as a spring to abut the pusher, a process is required which hooks a hook at one end of the spring to the pusher and stretches, and hooks at the other end of the spring (hook) hooked on the guiding side. Therefore, it takes time to connect the springs. In addition, the tension coil spring is relatively expensive with respect to the compression coil spring, and the cost is increased and the assembly time is increased because of the increase in the price of the parts.

Further, the conventional stapler includes a metal link member for connecting the pusher and the handle to form an interconnection mechanism for retracting the pusher when opening and closing the operation portion. .

On the other hand, in the stapler of Patent Document 2, a resin pusher-band is included as a member for connecting the pusher and the operating portion, and the component cost can be reduced by the push belt made of resin.

When the pusher and the operating portion side are made of a plate-like push made of a resin material When the moving belt is connected to each other, the push belt is connected to the pusher by a separate member, or the push belt is connected to the rear surface side of the pusher as disclosed in Patent Document 2.

However, when using separate components, the cost of parts will increase. On the other hand, when the push belt is attached to the rear surface side of the pusher, the procedure of connecting the push belt is more complicated, and the cost is increased by the procedure of the connection push belt.

For the above reasons, an interconnection structure is provided which is difficult to retract when the operation portion is opened and closed.

Embodiments of the present invention provide a stapler that is easy and reliable to perform in filling and unloading a staple, and an interlocking structure that pushes the pusher when opening and closing the operating portion Back, it can be assembled at low cost.

The above described objects, features, and advantages of the invention will be apparent from the embodiments of the invention. range.

The details disclosed in the specific embodiments of the present invention will be described in detail in conjunction with the drawings.

<Configuration Example of Stapler According to First Embodiment>

Figure 1 is a view showing the explosion of a stapler according to a first embodiment of the present invention. Fig. 2 is a schematic view showing an outline of a stapler according to a first embodiment of the present invention. The stapler 1A includes a magazine 2A in which staples 10 can be filled.

Each of the staples 10 filled into the butt 2A includes a needle crown 10a and two legs 10b which are bent from one end of the needle crown 10a in one direction to be substantially parallel to each other, plural The staples 10 are joined to each other and form a row of staples 10.

The stapler 1A includes a pusher 3A that pushes the staple 10 filled into the butt 2A in a direction perpendicular to the linear width of the crown 10a, and a pusher spring 4, which pushes Pushing the pusher 3A.

The stapler 1A includes a guide member 5A integrally formed with a spring-guide 50A that guides the push spring 4 and a pusher-guide 51A. It guides the movement of the pusher 3A and also guides the filling and retraction of the staple 10. The stapler 1A includes a driver 6, which separates and drives the staple 10 that is inserted into the butt 2A, and an upper handle 7, which is provided with the drive member 6.

The stapler 1A includes a crimper 80 that bends the stitch 10b of the staple 10 that penetrates the paper, and a lower handle 8, wherein the butt 2A and the upper operating portion 7 pass through an axis (shaft) 81 is rotatably supported here. The stapler 1A includes a pusher-band 9 that transmits one of the upper operation portions 7 to the pusher 3A to retract the pusher 3A.

The push spring 4 is connected to the spring guide 50A and the pusher 3A The guide member 5A is coupled to the butt 2A in a state where the guide member 51A is pushed, thereby constituting a magazine assembly 11A.

The butt assembly 11A is rotatably coupled to the lower operating portion 8 through the shaft 81, and the upper operating portion 7 is also rotatably coupled to the lower operating portion 8 and the butt assembly 11A through the shaft 81.

The driving member 6 is mounted on the upper operation portion 7, and by the operation of holding the upper operation portion 7 and the lower operation portion 8, the paper sheet P is sandwiched between the butt 2A and the nip portion 80 of the lower operation portion 8. With a pinch, a single staple 10 is driven by the driver 6 from the butt 2A.

The single staple 10 driven from the butt 2A penetrates the paper P held between the butt 2A and the nip 80, and is bent by the nip 80 to bind the paper P.

The pusher 3A is coupled to the drive member 6 of the upper operating portion 7 through the push belt 9, and by pushing the upper operating portion 7 about the shaft 81, the pusher 3A is pulled and retracted by the push belt 9 while compressing The spring 4 is pushed, whereby the staple 10 can be filled into the butt 2A.

The spring guide 50A and the push guide 51A are provided on both sides of the push spring 4, so that the staple 10 can be prevented from being caught by the spring guide when filling or unloading the staple 10 to the butt 2A 50A, push spring 4 and other components.

In the closing operation of the upper operating portion 7 about the shaft 81, the pushing member 3A is pushed by the elastic restoring force of the pushing spring 4, and then the filled staple 10 is also pushed.

The upper operating portion 7 includes a main body portion 70, which The bending process by the plate-shaped metal material is formed into a predetermined shape by punching, and the covers 71a, 71b are made of resin. The upper operation portion 7 includes a fixing mechanism (not shown), and the driving member 6 is attached to the bottom surface of the main body portion 70. The upper operating portion 7 includes a locking convex portion 72 that can be fastened to the butt 2A, and a pivot portion (not shown) located on the side wall portion of the main body portion 70 for engaging To the axis 81.

The lower operation portion 8 includes a main body portion 82 which is formed into a predetermined shape by a bending process of a plate-like metal material such as punching, and the cover 83 is made of a resin. The lower operation portion 8 includes a nip portion 80 on the front end side of the main body portion 82, and the nip portion 80 is integrally formed as a concave portion on the main body portion 82 for guiding the stitch 10b of the staple pin 10.

The lower operation portion 8 includes a pair of side wall portions 84 on the rear end side of the main body portion 82, and a shaft hole portion 84a allows the shaft 81 to be inserted through the side wall portion 84. A locking convex portion 84b that can be engaged to the butt 2A is formed in the lower operation portion 8, and protrudes toward the inner side of the side wall portion 84.

<Configuration Example of Needle Assembly According to First Embodiment>

3 to 6 are views showing a needle yam assembly constituting the stapler according to the first embodiment of the present invention, and then the needle shank 2A constituting the yam assembly 11A according to the first embodiment of the present invention will be described.

Fig. 3 is a front elevational view showing the butt assembly according to the first embodiment of the present invention, and Fig. 4 is a side view showing the butt assembly according to the first embodiment of the present invention. Figure 5 is a side cross-sectional view showing a butt assembly according to a first embodiment of the present invention, and Figure 6 is a view showing a first embodiment according to the present invention. A cross-sectional view of the needle assembly as an example.

The butt 2A includes a magazine bottom 20a, to which the staple 10 is placed, the butt 2A including a magazine side wall 20b which is along the width of the needle crown 10a of the staple 10. The upper control position, and a magazine front wall 20c, which control the position in the front-rear direction along the linear width direction of the staple 10. The butt 2A includes a staple cover 20d that controls the vertical position along the stitch 10b of the staple 10.

The file 2A has a space through which a sheet metal material is formed and bent, such as stamping, to form a predetermined shape, and an upper surface, which is open, whereby the staple 10 can be filled. In other words, in the butt 2A, both sides of the butt bottom 20a are bent upward in the same direction, whereby the pair of butt side walls 20b are formed vertically from both sides of the butt bottom 20a.

In the butt 2A, the inner width of the facing side wall 20b is substantially the same as the outer width of the needle crown 10a of the staple 10, so that the staple 10 can be loaded, and the staple 10 can be The positions of the staples 10 that are filled between the facing side walls 20b and filled therein are controlled in the width direction.

The upper end portion of the front end side of each of the butt side walls 20b is bent inwardly to form a staple cover 20d so as to protrude inwardly from the butt side wall 20b.

The inner width of the staple cover 20d is smaller than the outer width of the crown 10a of the staple 10, and the butt 2A is configured such that the gap between the base 20a of the butt and the staple cover 20d is substantially the same The length of the stitch 10b of the staple 10 thus allows the staple 10 to be inserted therein.

The length of the staple cover 20d is configured to be larger than a row of connected staples 10. The size of the pusher 3A, the length of the butt 2A, and the like are designed such that the two rows of staples 10 can be filled in a state where the push spring 4 is compressed and the pusher 3A is retracted to the maximum retracted position. . Based on this, when the two rows of staples 10 are filled into the butt 2A, the ends of the first row of staples 10 in the width direction of the needle crown 10a are controlled to cover the entire length, and the second row of staples A portion of the front end side of the needle 10 is also controlled.

Therefore, in the butt 2A, the staple 10 can be filled between the butt bottom 20a and the staple cover 20d, and thus the movement of the staple 10 in the vertical direction is controlled, and at the same time, the staple 10 It is also avoided to detach from the staple cover 20d facing it. Even when the two rows of staples 10 are filled in, the movement of the staples 10 in the vertical direction is controlled, and it is not necessary to provide an additional cover.

Further, in the butt 2A, the front end portion of each of the buttocks side walls 20b is bent inwardly, thereby forming the front side wall 20c of the butt, which is formed to close the front end of the side wall 20b of the buttocks. An opening portion 20e is provided which is sized such that the individual staples 10 can pass therethrough at the front end side of the bottom butt bottom 20a of the front side wall 20c of the butt.

Therefore, in the butt 2A, the leading end of the staple 10 is abutted against the front wall 20c of the butt in the straight line width direction, and therefore, the position of the staple 10 in the front-rear direction is controlled, whereby a single The position of the staple 10 at the foremost end can be controlled.

The butt 2A includes a locking convex portion 21 that grips the upper operating portion 7 in the closed position. The engaging convex portion 21 protrudes outward from the facing side wall 20b, and is fastened to the engaging convex portion of the upper operation portion 7. 72.

The butt 2A includes a locking concave portion 22 that grips the lower operating portion 8 when in the closed position. The snap recess 22 is formed by providing an opening in the facing side wall 20b and engaging the snap projection 84b of the lower operation portion 8.

The butt 2A also includes an opening portion 23 that adjusts the load applied to the upper operating portion 7 when the operating portion 7 is engaged to the engaging convex portion 21. The opening portion 23 is formed by providing an opening in the facing side wall 20b so that the portion of the engaging convex portion 21 provided on the side wall 20b of the butt can be deformed according to the desired load. In the present embodiment, the engaging recess 22 and the opening 23 are integrally formed.

The butt 2A includes a checking window 24 through which the staple 10 is filled and how many staples 10 remain to be inspected. In the present embodiment, the inspection window 24 is formed by providing a hole-shaped opening on the front end side of the facing side wall 20b, so that the staple 10 filled into the butt 2A can be seen.

The butt 2A includes a hole portion 25 through which the shaft 81 can be inserted. The hole portion 25 is formed by providing a circular perforation in the size of the shaft 81 on the rear end side of the facing side wall 20b.

The butt 2A includes a first support portion 26a and a second support portion 26b that supports the guide member 5A. The first support portion 26a is formed in a form that is vertical from the needle bottom portion 20a on the front end side of the butt 2A, and, in the present embodiment, is provided in the form of a circular perforation to be bent and high. At the bottom of the needle 20a The rectangular block portion is integrally formed.

The second support portion 26b is formed in a form that is vertical from the bottom portion 20a of the butt 2A on the rear end side of the butt 2A, and, in the present embodiment, is provided with a circular perforation in the form of a bend and The rectangular block portion higher than the bottom portion 20a of the butt is integrally formed.

7 to 10 are views showing a guiding member according to the first embodiment of the present invention, and then the guiding member 5A constituting the butt assembly 11A of the first embodiment of the present invention will be described. Figure 7 is a front elevational view showing a guiding member constituting the butt assembly according to the first embodiment of the present invention, and Figure 8 is a view showing the side of the guiding member constituting the butt assembly according to the first embodiment of the present invention. schematic diagram.

Figure 9 is a side cross-sectional view showing a guide member constituting a file cartridge assembly according to a first embodiment of the present invention, and Figure 10 is a view showing a guide member constituting the file assembly according to the first embodiment of the present invention. view.

The guiding member 5A is made of a resin material, and the pushing guide 51A is provided on both sides of the spring guiding member 50A, and the spring guiding member 50A and the pushing guiding member 51A extend in the longitudinal direction of the butt 2A. .

In the guiding member 5A, the pair of pushing guides 51A are disposed in parallel at intervals one of the inner widths of the needle crowns 10a of the staples 10, and the spring guiding members 50A and the pushing guides 51A are arranged in parallel. The front end side is integrally coupled to each other by a first connecting portion 52a having a shape in which the left and right push guides 51A are connected. The rear end side of the push guide 51A is integrally coupled to each other by a second connecting portion 52b, which has a connection left and right push The guide member 51A has an outer shape.

The front end side of the spring guide 50A is supported by the first connecting portion 52a in a cylindrical shape, a prismatic shape or the like, and the push spring 4 is interposed therein, and is constituted by a compression coil spring which receives a compressive load, And based on this compressive force, it extends with its restoring force against elastic deformation.

In the spring guide 50A, the first shaft portion 53a inserted into the first support portion 26a of the butt 2A is provided in the form of being protruded from the front side of the first connecting portion 52a, and is inserted A first shaft portion 53b of the second support portion 26b of the needle insertion 2A is provided at the rear end of the spring guide 50A.

The push guide 51A includes a guide convex portion 54 that guides the pusher 3A, and the guide projection 54 has a projection that protrudes outward from the side of the push guide 51A, and is pushed according to the push The moving range of the piece 3A is provided in the longitudinal direction of the push guide 51A.

The push guide 51A includes a shaft contact portion 55a that fixes the guide member 5A to the butt 2A. The shaft contact portion 55a is formed by providing a step portion 55b on the rear end side of the push guide 51A.

The guiding member 5A can be molded in an integral molding manner without using a sliding mold, so that the mold cost can be reduced, and thus the part cost can be reduced.

In the butt assembly 11A, when the guide member 5A is attached to the butt 2A and the shaft 81 is inserted into the hole portion 25 of the butt 2A, the step portion 55b enters the bottom side of the shaft 81 and the shaft contact portion 55a The shaft 81 is brought into contact, whereby the rear end side of the guiding member 5A can be fixed to the butt 2A.

<Example of Configuration of Push Retraction Mechanism According to First Embodiment>

11(a) to 13(b) are diagrams showing a push-retract mechanism according to a first embodiment of the present invention, and then a pusher and a drive member constituting the push-retract mechanism according to the first embodiment of the present invention are explained. And push the configuration of the belt.

11(a) and 11(b) are views showing the overall configuration of the push retracting mechanism according to the first embodiment of the present invention. 11(a) is a front elevational view showing the overall configuration of the push retracting mechanism according to the first embodiment of the present invention, and FIG. 11(b) is a view showing the overall configuration side of the push retracting mechanism according to the first embodiment of the present invention. schematic diagram.

Figures 12(a) and 12(b) are schematic views showing a pusher according to a first embodiment of the present invention. Fig. 12(a) is a front elevational view showing a pusher member according to a first embodiment of the present invention, and Fig. 12(b) is a side sectional view showing a pusher member according to a first embodiment of the present invention.

Figures 13(a) and 13(b) show the main part of the drive unit. This part is the push belt. Figure 13(a) is a front elevational view showing the main part of the driving member according to the first embodiment of the present invention, and Figure 13(b) is a view showing the main part of the driving member according to the first embodiment of the present invention. Side profile view.

The pushing member 3A includes a pressing portion 30a that pushes against the staple 10, and a spring pressing portion 30b that pushes against the pushing spring 4, and a guiding groove (guide) The groove 31 guides the push guide 51A of the guide member 5A.

The pushing member 3A includes a belt locking portion 32, the pushing belt 9 is fastened thereto, and a belt falling prevention portion A band falling-out preventing portion 33 that avoids the detachment of the push belt 9 that is fastened to the buckle portion 32 from the pusher 3A.

The pushing portion 30a is formed to protrude outward from the front end side of the pusher 3A from the left and right sides to push the two stitches 10b of the staple 10. The spring pushing portion 30b enters the pair of pushing guides 51A to be covered in the pushing member 3A with the pushing guide 51A, and is formed by the provision of the hole portion into the spring guiding member 50A.

The guiding groove 31 is tightly fitted to the guiding protrusion 54 of the pushing guide 51A, and the opposite side of each of the pushing guides 51A is covered with the pushing guide 51A in the pushing member 3A, and is provided by the deep recess A depressed groove is formed in the moving direction of the pushing member 3A.

The belt engaging portion 32 includes a locking convex portion 32a that protrudes toward the upper surface of the pushing member 3A, and the first locking hole portion 90 of the pushing belt 9 is inserted therein, and A falling-out preventing convex portion 32b is included, which protrudes forward from the upper end of the engaging convex portion 32a to prevent the first engaging hole portion 90 of the push belt 9 from being detached from the engaging convex portion 32a.

The belt fall prevention portion 33 includes a butting convex portion 33a which protrudes toward the upper surface of the pusher 3A and is more on the front side than the belt engaging portion 9, and includes a peeling prevention A falling-out wearing convex portion 33b protrudes rearward from the upper end of the abutting convex portion 33a to prevent the push belt 9 from being detached from the abutting convex portion 33a.

The driving member 6 includes a driver portion 60 for driving the staple 10, including a magazine return spring 61a, which resets the butt 2A with respect to the upper operating portion 7, and includes a lower operation A lower return return spring 61a that resets the lower operation portion 8 with respect to the upper operation portion 7 and the butt 2A.

The driving member 6 includes a band locking portion 62 through which the push belt 9 can be engaged, and a band falling-out preventing portion 63 to avoid snapping to the buckle portion. The push belt 9 of 62 is detached from the drive member 6.

The driving member 6 is mounted on the bottom surface of the upper operation portion 7, and the driving portion 60 protrudes downward from the front end side of the upper operation portion 7, and the width of the driving portion 60 is substantially the same as the width of the needle crown 10a of the staple 10 And the thickness of the plate is substantially the same as the linear width of the staple 10, and is interposed between the side wall 20b of the butt 2A facing the needle, along the front wall 20c of the butt.

In the driving member 6, the butt return spring 61a and the lower operating portion return spring 61b project downward from the rear end side of the upper operating portion 7, and the butt return spring 61a is in the closed state of the upper operating portion 7 with one of them. The needle side wall 20b of the butt 2A is in contact with each other, and is pressed when the upper operation portion 7 and the lower operation portion 8 are gripped. The lower operation portion return spring 61b is in contact with the side wall portion 84 of the lower operation portion 8 in the closed state of the lower operation portion 8, and is pressed when the upper operation portion 7 and the lower operation portion 8 are gripped.

The belt fastening portion 62 protrudes toward the hole portion 64 and penetrates the driving member 6, pushing the second locking hole of the belt 9 Portion 91 matches here. The belt fastening portion 62 includes a locking piece portion 62a against which the second fastening hole portion 91 abuts. The clasp portion 62a is formed in a step shape from the surface of the driving member 6, and has a height equal to the plate thickness of the driving member 6.

The tape fall prevention portion 63 is provided on the other side of the hole portion 64, and is formed in a stepped shape protruding from the surface of the driving member 6, and has a height substantially the same as the plate thickness of the driving member 6, which is further forward of the tape engaging portion 62. Part.

The push belt 9 is made of a resin material of a plate shape, a sheet shape or the like, which can be bent into any shape between the pusher 3A and the drive member 6, from the foremost end to the first fastening hole portion of the push belt 9. The length of 90 is substantially equal to the length between the abutting convex portion 33a of the belt fall prevention portion 33 of the pusher 3A and the engaging convex portion 32a of the buckle engaging portion 32, and the first engaging hole portion 90 is formed in a long hole shape. The detachment preventing convex portion 32b protruding from the belt engaging portion 32 can be inserted thereby.

The length of the second engaging hole portion 91 from the end to the push belt 9 is substantially equal to the length between the belt engaging portion 62 of the driving member 6 and the belt falling prevention portion 63, and the shape of the second engaging hole portion 91 is The engaging block portion 62a protruding from the belt engaging portion 62 of the driving member 6 can be inserted thereby.

<Example of assembly process of the butt assembly according to the first embodiment>

Next, the assembly process of the butt assembly 11A according to the first embodiment of the present invention will be explained.

First, the pushing member 3A is mounted on the pushing guide 51A of the guiding member 5A, the guiding groove 31 is engaged with the guiding protrusion 54 of the pushing guide 51A, and the spring pushing portion 30b is inserted into the guiding guide. Spring guide 50A of lead member 5A, Therefore, the pusher 3A is attached in such a manner as to be movable along the spring guide 50A and the push guide 51A.

Next, the urging spring 4 is attached to the spring guide 50A of the guiding member 5A, and the urging spring 4 is inserted into the spring guiding member 50A, and the spring pushing portion 30b of the pushing member 3A is inserted, so The foremost side of the spiral in the axial direction is in contact with the pusher 3A.

The guide member 5A to which the pusher 3A and the push spring 4 are attached is attached to the butt 2A. First, the second shaft portion 53b of the spring guide 50A of the guide member 5A is inserted into the needle 2A. The two support portions 26b, then, retract the guide member 5A and simultaneously compress the push spring 4 so that the first shaft portion 53a can be aligned with the first support portion 26a of the butt 2A.

Thereafter, the guiding member 5A is advanced such that the first shaft portion 53a can be inserted into the first supporting portion 26a of the butt 2A, and therefore, the first shaft portion 53a on the front side of the guiding member 5A is first by the needle 2A The support portion 26a is supported, and the rear second shaft portion 53b is supported by the second support portion 26b of the butt 2A.

In the case of using a tension coil spring as the spring of the ejector pusher, generally, a procedure is required to hook the one end of the spring to the pusher and stretch, and the spring The hook at one end is hooked on the guiding side, and the procedure for installing the spring is time consuming.

In contrast, in the butt hammer assembly 11A according to the first embodiment of the present invention, the push spring 4 can be simply inserted into the spring guide 50A by a procedure of attaching the push spring 4 to the guide member 5A. Therefore, the assembly time can be shortened compared to the configuration using the tension coil spring.

Mounting the guiding member 5A to the butt 2A can be as conventional Where the shaft spring guide is mounted on the support portion of the butt, so that the conventional work can be performed without increasing the time of installation on the butt 2A even when the guide member 5A is guided by the spring The lead member 50A and the push guide 51A are integrally formed.

<Example of operation and effect of the butt assembly according to the first embodiment>

In the assembly process of the above-described butt assembly 11A, the shaft hole portion 84a of the lower operating portion 8 is aligned with the hole portion 25 of the butt 2A, and the shaft 81 is inserted into the hole and riveted (calked) ).

When the shaft 81 is inserted into the hole portion 25 of the butt 2A, the step portion 55b of the guiding member 5A will enter the bottom side of the shaft 81, and the shaft contact portion 55a comes into contact with the shaft 81, whereby the guiding member The rear end side of the 5A can be fixed to the butt 2A.

In the butt assembly 11A, when the guiding member 5A is mounted on the butt 2A, the spring guiding member 50A is substantially aligned with the center line of the butt 2A, and the pushing guide 51A is integrally provided to the spring guiding member 50A. On the spring guide 50A, on the left and right sides of the push spring 4.

The height of the pushing guide 51A is substantially the same as the spring guiding member 50A and slightly smaller than the length of the stitch 10b of the staple 10, and a space larger than the linear width of the staple 10 is formed on the pushing guide 51A and Further, between the needle side walls 20b, a space equal to or larger than the linear width of the staples 10 is formed between the front end of the push guide 51A and the front wall 20c of the butt.

In the stapler 1A, in the opening operation in which the upper operation portion 7 uses the shaft 81 as a support point, the push spring 4 is compressed and the pusher 3A is retracted by the pulling of the push belt 9, and then the staple 10 is formed. Filled into the space Between the pusher 3A and the front wall 20c of the butt.

When a compression coil spring is used as the configuration of the urging spring 4, since the urging spring 4 is compressed by the retracting urging member 3A, the urging spring 4 is not exposed to the needle to be filled by the staple 10匣 2A in the space. Further, the spring guide 50A is exposed to the space of the butt 2A into which the staple 10 is to be filled, and is provided with the push guide 51A on both sides thereof.

Therefore, when the staple 10 is filled into the needle 2A or taken out from the needle 2A, the stitch 10b of the staple 10 is guided in a space between the push guide 51A and the butt side wall 20b, thus The staple 10 can be prevented from being caught in the spring guide 50A, the push spring 4, and the like.

Further, in the stapler 1A, in the opening operation of the upper operation portion 7 using the shaft 81 as a support point, when the pusher 3A is pulled by the push belt 9, this force not only pushes the pusher 3A along the push guide When 51A moves, this force pushes up the pushing member 3A from the pushing guide 51A, and the above force is applied to the pushing member 3A.

Since the guide groove 31 is tightly fitted to the guide protrusion 54 of the push guide 51A, the pusher 3A can be prevented from being detached from the push guide 51A even when the force lifts the pusher 3A from the push guide 51A. High time.

Further, since the first shaft portion 53a is integrally molded with the first connecting portion 52a supported by the first supporting portion 26a of the butt 2A, the front end side of the push guide 51A is fixed to the butt 2A. Further, as described above, the step portion 55b of the push guide 51A enters the bottom side of the shaft 81, and the shaft contact portion 55a is in contact with the shaft 81, so that the rear end side of the push guide 51A is also fixed to Acupuncture 2A.

Therefore, even if there is a force application to lift the pusher 3A from the push guide 51A, the guide member 5A having the push guide 51A can be prevented from being detached from the butt 2A, and the push guide 51A is also prevented from being largely Deformation.

Further, since a space equal to or larger than the linear width of the staple 10 is formed between the front end of the push guide 51A and the front wall 20c of the butt, the single staple 10 can be prevented from falling backward therefrom.

Generally, in a small-sized stapler, a short-footed staple is filled therein, and the staple is supported by the bottom of the butt, and therefore, a guide of the staple is provided in the butt. In the configuration of the lead, this guide does not need to require its strength. On the other hand, in a medium or large stapler, a staple with a long foot and a staple with a short foot can be filled therein, and there are many configurations for the staple of the staple to be guided by the guide, based on Therefore, this guide needs to require its strength.

In the stapler 1A according to the first embodiment of the present invention, since the staple 10 is supported by the butt bottom 20a, a strong external force is not applied to the guiding member 5A due to the driving of the driving member 6, In the guiding member 5A, the spring guiding member 50A and the pushing guide member 51A may be integrally molded from a resin material such as plastic.

<Example of the push belt assembly process according to the first embodiment>

14(a) to 14(c) are schematic views showing the mounting of the push belt to the pusher according to the first embodiment of the present invention, and Figs. 15(a) to 15(c) show the first embodiment according to the present invention. For example, a side cross-sectional view of the push belt to the pusher is provided. The installation process of the push belt 9 to the pusher 3A according to the first embodiment of the present invention will be described below.

After assembling the butt assembly 11A as described above, the lower operating portion 8 and the upper operating portion 7 on which the driving member 6 is mounted are integrally assembled by the shaft 81, and when the upper operating portion 7 is opened, as in the 11th (a) As shown in the figure, the belt engaging portion 32 of the pusher 3A, the belt fall prevention portion 33, and the belt engaging portion 62 and the belt fall prevention portion 63 of the driving member 6 are exposed.

When the push belt 9 is attached to the pusher 3A, the position of the push belt 9 in the direction of the arrow F1 in the 11th (a) figure on the front side of the pusher 3A is relative to the belt engaging portion 32 of the pusher 3A. The first engaging hole portion 90 having a long hole shape is controlled to be deviated forward. Further, as shown in Figs. 14(a) and 15(a), the belt engaging portion 32 of the pusher 3A is inserted into the first engaging hole portion 90 of the push belt 9, and in this state, the push belt is pushed. The front end side of the 9 is located on the belt fall prevention portion 33 of the pusher 3A.

Next, as shown in Figures 14(b) and 15(b), the push belt 9 is pulled rearward. When the push belt 9 is pulled rearward, the first fastening hole portion 90 having a long hole shape is moved rearward relative to the belt engaging portion 32 of the pusher 3A, and the front end of the first fastening hole portion 90 The fastening convex portion 32a of the belt fastening portion 32 is abutted against the fastening portion 32a. Further, the edge of the front end side of the first engaging hole portion 90 is pushed up by the falling prevention convex portion 32b of the belt engaging portion 32.

Next, as shown in Figs. 14(c) and 15(c), the push belt 9 is pulled rearward, and the leading end of the push belt 9 is pushed into the belt fall prevention portion 33. When the front end of the push belt 9 is pushed into the belt fall prevention portion 33, the front end of the push belt 9 passes over the fall prevention convex portion 33b of the belt fall prevention portion 33, and then abuts against the abutment convex portion 33a of the belt fall prevention portion 33. .

16(a) to 16(b) are diagrams showing the loading according to the first embodiment of the present invention FIG. 17(a) to 17(b) are schematic cross-sectional views showing the mounting of the push belt to the driving member according to the first embodiment of the present invention, and the first aspect of the present invention will be described below. The mounting of the push belt 9 to the driving member 6 is carried out in the embodiment.

When the push belt 9 is mounted on the driving member 6, the position of the push belt 9 in the direction of the arrow F2 in the eleventh (a)th drawing on the front side of the driving member 6 is relative to the belt engaging portion 62 of the driving member 6. It is controlled that the second engagement hole portion 91 is in a state of being deviated forward. Further, as shown in Figs. 16(a) and 17(a), the belt engaging portion 62 of the driving member 6 is inserted into the second engaging hole portion 91 of the push belt 9, and in this state, the push belt is pushed. The rear end side of the 9 is located on the belt fall prevention portion 63 of the drive member 6.

Next, as shown in Figs. 16(b) and 17(b), when the push belt 9 is pushed toward the hole portion 64 of the driving member 6, the push belt 9 is pulled rearward. When the push belt 9 is pulled rearward, the second fastening hole portion 91 is moved rearward relative to the belt engaging portion 62 of the driving member 6, and the second fastening hole portion 91 is abutted against the buckle. A portion of the plane or curved surface of the base portion of the snap portion 62a of the hinge portion 62. Further, the edge of the second engaging hole portion 91 is pushed up by the engaging block portion 62a of the belt engaging portion 62.

Further, the rear end of the push belt 9 passes over the belt fall prevention portion 63, and then the rear end of the push belt 9 abuts against the belt fall prevention portion 63.

<Example of Operation of Push Retraction Mechanism According to First Embodiment>

Next, the operation of the push retracting mechanism according to the first embodiment of the present invention will be explained, in which the push belt 9, the pusher 3A and the drive member 6 on the upper operating portion 7 side are connected to each other as described above.

In the opening operation of the upper operation portion 7 using the shaft 81 as a support point, the force is applied in the direction in which the pusher 3A is pulled by the push belt 9, and the pusher 3A pushes the first engaging hole portion 90 of the push belt 9 against The fastening protrusion 32a of the belt engaging portion 32 is pressed, and the driving member 6 pushes the second fastening hole portion 91 of the pushing belt 9 against the belt fastening portion 62.

Therefore, in the opening operation of the upper operation portion 7, the push belt 9 receives the force at the second engaging hole portion 91, and is pulled by the belt engaging portion 62 provided to the driving member 6. The pushing member 3A receives the force of the engaging convex portion 32a of the buckle engaging portion 32, and is pulled by the first engaging hole portion 90 of the push belt 9.

In the opening operation of the upper operation portion 7 using the shaft 81 as a support point, when the push spring 4 pushes the pusher 3A, the pusher 3A exerts a force on the push belt 9 so as to be pulled, and therefore, the push belt 9 is received at the first buckle The force of the fitting portion 90 is pulled by the engaging convex portion 32a of the belt engaging portion 32 of the pusher 3A. The upper operation portion 7 receives the force of the belt engaging portion 62 provided to the driving member 6, and is pulled by the second engaging hole portion 91 of the push belt 9.

When the staple 10 is filled into the butt 2A, when the pusher 3A is advanced to a position where the pushing portion 30a of the pusher 3A comes into contact with the staple 10, the front end of the staple 10 is pushed against the front of the butt 10 Wall 20c, and pusher 3A is no longer moving.

When the pusher 3A stops moving, the upper operating portion 7 is further closed, and the push belt 9 applies the force to which the push-pull pusher 3A is applied forward. On the other hand, when the push belt 9 is applied to the state in which the pusher 3A is moved forward, the front end of the push belt 9 is pushed against the abutment convex portion 33a of the belt fall prevention portion 33.

Thereby, the movement of the push belt 9 can be controlled, and the detachment from the pusher 3A is also avoided, and in the closing operation of the upper operation portion 7, the push belt 9 is curved. When the push belt 9 is curved and the upper operating portion 7 is further closed, the force pushing the push belt 9 toward the front is also applied to the side of the driving member 6 at the same time, and therefore, the rear end of the push belt 9 is pushed against the driving member 6. The belt fall prevention portion 63. Thereby, the movement of the push belt 9 can be controlled, and the detachment from the drive member 6 is also avoided.

<Example of Operation and Effect of Push Retracting Mechanism According to First Embodiment>

The push belt 9 is configured such that the length from the front end to the first engaging hole portion 90 is substantially the same as the abutting convex portion 33a of the belt fall prevention portion 33 of the pusher 3A and the engaging convex portion of the belt engaging portion 32. The length between 32a.

Therefore, when the pusher 3A is assembled with the push belt 9, the front end of the push belt 9 abuts against the abutting projection 33a of the belt fall prevention portion 33, and the front end of the first fastening hole portion 90 and the buckle engaging portion 32 The state in which the engaging convex portion 32a abuts against the top can be maintained. Further, the edge on the front end side of the first engaging hole portion 90 is pushed up by the falling prevention convex portion 32b of the belt engaging portion 32.

Therefore, in the opening and closing operation of the upper operation portion 7 and the moving operation of the pusher 3A, the push belt 9 is prevented from moving in the direction in which the push belt 9 is disengaged from the pusher 3A, so that the push belt 9 can be prevented from being pushed from the pusher 3A is detached. Further, the front end of the push belt 9 is pushed up by the fall prevention convex portion 33b of the tape fall prevention portion 33, whereby the front end of the push belt 9 can be prevented from being detached from the tape fall prevention portion 33.

As described above, the push belt 9 is mounted on the pusher 3A through the pusher The engagement protrusion 32a of 3A is inserted into the first engagement hole portion 90 of the push belt 9, and the push belt 9 is pulled in the direction of the arrow a1 in Fig. 15, and the front end of the push belt 9 is according to the 15th. The direction of the arrow a2 in the figure is pushed.

Therefore, the push belt 9 can be attached to the pusher 3A by pushing and pulling the push belt 9 to and from the surface side with respect to one of the pusher members 3A, which is a mounting portion of the push belt 9, and thus, The operation can be simplified and possibly automated.

The push belt 9 is disposed such that the length from the rear end thereof to the second engaging hole portion 91 is substantially the same as the length between the belt engaging portion 62 of the driving member 6 and the belt fall prevention portion 63, at least in the push belt When the rear end of the 9 is in a state of being brought up against the belt fall prevention portion 63, the engaging block portion 62a of the belt engaging portion 62 is not detached from the second fastening hole portion 91.

Therefore, when the push belt 9 is mounted on the driving member 6, the second engaging hole portion 91 of the pushing belt 9 abuts against the step portion of the belt engaging portion 62, and the edge of the second fastening hole portion 91 is buckled. The engaging block portion 62a of the joint portion 62 is pushed up. Further, even when the push belt 9 is moved forward and backward, the rear end of the belt 9 is pushed in a state where the edge of the second engaging hole portion 91 is pushed up by the engaging block portion 62a of the belt engaging portion 62. The belt fall prevention portion 63 is still pressed against the top.

Therefore, in the opening and closing operation of the upper operation portion 7 and the moving operation of the pusher 3A, the push belt 9 is prevented from moving in the direction in which the push belt 9 is disengaged from the drive member 6, so that the push belt 9 can be prevented from being driven from the drive member 6 detached.

As described above, the attachment of the push belt 9 to the driving member 6 is achieved by the operation of inserting the belt engaging portion 62 of the driving member 6 into the second engaging hole portion 91 of the push belt 9, and the pushing belt 9 is in accordance with the 17th. The direction of the arrow b1 in the figure is pulled, And the rear end of the push belt 9 is pushed in the direction of the arrow b2 in Fig. 17.

Therefore, the push belt 9 can be attached to the driving member 6 by pushing and pulling the push belt 9 to and from the surface side with respect to the driving member 6, which is another mounting portion of the push belt 9, and therefore, The above operations can be simplified and may be automated. Further, in the present embodiment, the push belt 9 is attached to the upper operation portion 7 side by the same mounting structure of the pusher 3A and the drive member 6, but other mounting structures can be used. In addition, although the belt engaging portion 62 and the belt fall prevention portion 63 have a stepped shape on the surface of the driving member 6, a coplanar structure is also possible as long as the push belt 9 can be inserted into the driving member 6 and The space between the upper operation portions 7 may be sufficient.

<Modified Example of Push Retraction Mechanism According to First Embodiment>

Next, a modified example of the push retracting mechanism constituted by the driving member and the push belt according to the first embodiment of the present invention will be explained.

18(a) and 18(b) are schematic views showing the arrangement of the main portion of the driving member with the push belt in accordance with the present exemplary embodiment, and Fig. 18(a) shows a modified example according to the first embodiment. FIG. 18(b) is a side cross-sectional view showing the main part configuration of the driving member according to a modification of the first embodiment.

The driving member 6 includes a belt engaging portion 62 to which the pushing belt 9 is fastened, and includes a belt peeling prevention portion 63 to prevent the pushing belt 9 fastened to the belt engaging portion 62 from being detached from the driving member 6.

The belt engaging portion 62 includes a fastening block portion 62a that protrudes upward from the hole portion 64 and penetrates the driving member 6, and is inserted into the first fastening hole portion 91 of the push belt 9, and includes a receiving portion ( Receptor) 62b, against the top of the buckle block 62a is inserted into the first fastening hole portion 91 of the push belt 9.

The clasping block portion 62a is provided with a stepped shape with respect to the driving member 6, and has a height equal to the plate thickness of the driving member 6, and is protruded by the surface of the driving member 6. The accommodating portion 62b is constituted by one side of the hole portion 64, and protrudes from the hole portion 64 at the rear end side of the engaging block portion 62a.

The tape fall prevention portion 63 is constituted by the other side of the hole portion 64, is provided with a stepped shape with respect to the driving member 6, and has a height equal to the plate thickness of the driving member 6, and is larger than the surface of the driving member 6 by the tape engaging portion 62. More prominent.

When the push belt 9 is attached to the driving member 6 according to the present embodiment, the belt engaging portion 9 is pushed relative to the belt engaging portion 62 of the driving member 6 in a state where the first engaging hole portion 91 is deviated forward, and the position thereof is Being controlled. Further, the belt engaging portion 62 of the driving member 6 is inserted into the first engaging hole portion 91 of the push belt 9, and in this state, the rear end side of the push belt 9 is the belt falling prevention portion of the driving member 6. 63 on.

Then, when the push belt 9 is pushed toward the hole portion 64 of the driving member 6, the push belt 9 is pulled rearward, and when the push belt 9 is pulled rearward, the first engaging hole portion 91 is opposed to the driving member. The belt engaging portion 62 of the belt 6 is moved rearward, and therefore, the first engaging hole portion 91 abuts against the accommodating portion 62b of the belt engaging portion 62. Further, the edge of the first engaging hole portion 91 is pushed up by the engaging block portion 62a of the belt engaging portion 62.

Further, the rear end of the push belt 9 passes over the belt fall prevention portion 63, and the rear end of the push belt 9 abuts against the belt fall prevention portion 63.

In the opening operation of the upper operating portion 7 using the shaft 81 as a support point, the first engaging hole portion 91 of the push belt 9 is pushed against the buckle on the side of the driving member 6 The receiving portion 62b of the joint portion 62.

Therefore, in the opening operation of the upper operating portion 7, the push belt 9 receives the force close to the center of the first engaging hole portion 91, and is pulled by the receiving portion 62b of the belt engaging portion 62 of the driving member 6.

In the opening operation of the upper operation portion 7 using the shaft 81 as a support point, as described above, when the urging spring 4 urges the urging member 3A, the accommodating portion 62b of the belt engaging portion 62 provided to the driving member 6 receives the above force, Further, the first engaging hole portion 91 of the push belt 9 is pulled by the upper operating portion 7 side.

When the staple 10 is filled into the butt 2A, as described above, when the pusher 3A is advanced to a position where the pushing portion 30a of the pusher 3A comes into contact with the staple 10, and the pusher 3A stops moving, When the upper operation portion 7 is further closed, the push belt 9 is curved.

When the push belt 9 is bent and the upper operating portion 7 is further closed, the force pushing the push belt 9 forward will be simultaneously applied to the side of the driving member 6, and therefore, the rear end of the push belt 9 is pushed against the belt of the driving member 6. The fall prevention portion 63. Thereby, the movement of the push belt 9 can be controlled, and the detachment from the drive member 6 is also avoided.

According to the modified retracting mechanism of the modification of the first embodiment, the above-mentioned force is received by the receiving portion 62b of the band engaging portion 62 around the center of the driving member 6, and therefore, with respect to the first embodiment, the pushing The first engaging hole portion 91 of the belt 9 and the driving member 6 are in contact with each other in a relatively large plane, and therefore, the load applied to the pushing belt 9 can be reduced.

19(a) and 19(b) are diagrams showing modified examples of the driving member and the push belt according to the first embodiment of the present invention, and Fig. 19(a) is a view showing a modified driving member according to the first embodiment. And the front view of the push belt, 19(b) is a side sectional view showing a driving member and a push belt according to a modification of the first embodiment.

The pusher 3A according to the present modification includes the belt engaging portion 32, the push belt 9 is fastened thereto, and the belt fall prevention portion 33 is included to prevent the push belt 9 fastened to the belt engaging portion 32 from being detached from the pusher 3A, and A guide convex portion 34 is included to guide the mounting of the push belt 9.

The guide projection 34 protrudes from the rear side of the belt engaging portion 32 toward the upper surface of the pusher 3A, and is inserted into the guide hole portion 92 of the push belt 9, and the guide projection of the pusher 3A The positions of the guide portion 92 of the portion 34 and the push belt 9 can be controlled with each other, whereby the positions of the pusher 3A and the push belt 9 can be more reliably installed in an automated machine or the like.

<Configuration Example of Stapler According to Second Embodiment>

Fig. 20 is a view showing the exploded view of the stapler according to the second embodiment of the present invention. In the stapler 1B of the second embodiment, the spring-guide 50B constitutes a guide member ( The guide member 5B has a piece holding structure, and therefore, the appearance of the magazine 2B can be simplified.

The overall structure of the stapler 1B of the second embodiment is substantially the same as that of the stapler 1A of the first embodiment, that is, the stapler 1B includes a magazine 2B in which the staple 10 can be filled and a pusher (pusher) 3B pushes the staple 10 filled in the needle 2B, and a push spring 4 pushes the pusher 3B.

The stapler 1B includes a spring guide 50B that guides the push spring 4, and a guide member 5B that is coupled to a pusher-guide 51B. The body is molded to guide the movement of the pusher 3B and guide the loading and unloading of the staple 10. The stapler 1B includes a driving member 6 which separates and drives the staples 10 which are filled into the butt 2B, and an upper operating portion 7 is provided with the driving member 6.

The stapler 1B includes a nip 80 that bends the stitch 10b of the staple 10 that has passed through the sheet, and a lower operation portion 8, wherein the butt 2B and the upper operating portion 7 are rotatably supported therethrough via a shaft 81. The stapler 1B includes a push belt 9 that transmits one of the upper operation portions 7 to the pusher 3B to retract the pusher 3B.

In the stapler 1B, the push spring 4 is attached to the spring guide 50B, and the guide member 5B on which the pusher 3B is provided with the pusher 3B is mounted in the butt 2B, thereby forming the butt Magazine assembly 11B.

The butt assembly 11B is rotatably coupled to the lower operating portion 8 through the shaft 81, and the upper operating portion 7 is also rotatably coupled to the lower operating portion 8 and the butt assembly 11B via the shaft 81.

In the stapler 1B, the driving member 6 is mounted on the upper operation portion 7, and by the operation of holding the upper operation portion 7 and the lower operation portion 8, the paper sheet P is in the butt 2B and the lower operation portion 8. The nips 80 are pinched between each other, and the single staple 10 is driven by the driver 6 from the butt 2B.

The single staple 10 driven from the butt 2B penetrates the paper P held between the butt 2B and the nip 80 of the lower operating portion 8, and is bent by the nip 80 to bind the paper. P.

In the stapler 1B, the pusher 3B is connected to the upper by the push belt 9 The driving member 6 of the operating portion 7 is operated by the opening operation of the upper operating portion 7 about the shaft 81, the pushing member 3B is pulled and retracted by the pushing belt 9 while compressing the pushing spring 4, whereby the staple 10 can be filled into the butt 2B of the butt assembly 11B.

In the file assembly 11B, the spring guide 50B and the push guide 51B are provided on both sides of the push spring 4, so that the staple 10 can be avoided when the needle 2B is filled or taken out of the staple 10. It is sandwiched into the spring guide 50B, the push spring 4, and the like.

In the stapler 1B, in the closing operation of the upper operation portion 7 using the shaft 81 as a support point, the pusher 3B is pushed by the elastic restoring force of the push spring 4, and then, the staple 10 filled into the butt 2B Also promoted.

<Example of Configuration of Needle Assembly According to Second Embodiment>

21 to 24 are views showing a needle assembly of a stapler according to a second embodiment of the present invention, and then the needle 2B constituting the butt assembly 11B according to the second embodiment of the present invention will be described.

Figure 21 is a front elevational view showing a butt assembly according to a second embodiment of the present invention, Figure 22 is a side view showing a file assembly according to a second embodiment of the present invention, and Figure 23 is a view showing the present invention. A side cross-sectional view of the butt assembly of the second embodiment, and Fig. 24 is a front cross-sectional view showing the file assembly of the second embodiment of the present invention.

The butt 2B includes a needle bottom portion 20a which is formed into a predetermined shape by a forming and bending process of a sheet metal material such as punching, and the staple 10 is filled therein. The butt 2B includes a butt side wall 20b which is controlled in the width direction along the needle crown 10a of the staple 10, and a needle front wall 20c, It controls the position in the front-rear direction along the linear width direction of the staple 10.

The butt 2B includes a staple cover 20d that controls the position in the vertical direction along the stitch 10b of the staple 10. In the butt 2B, the opening portion 20e is provided, and the size of the individual staples 10 can be thereby passed therethrough at the front end side of the bottom needle bottom portion 20a of the needle front wall 20c.

The butt 2B includes a snap projection 21 that grips the upper operating portion 7 when in the closed position. The engaging convex portion 21 protrudes outward from the facing side wall 20b and is engaged with the engaging convex portion 72 of the upper operation portion 7.

The butt 2B includes a snap recess 22 that grips the lower operating portion 8 and clamps the guiding member 5B when in the closed position. The fastening recess 22 is formed by providing an opening in the facing side wall 20b, and is engaged with the engaging convex portion 84b of the lower operation portion 8 and the guiding member 5B.

The butt 2B includes an opening 23 that adjusts the load applied to the upper operating portion 7 when the operating portion 7 is engaged to the engaging convex portion 21 in operation. The opening portion 23 is formed by providing an opening in the facing side wall 20b so that the portion of the engaging convex portion 21 provided on the side wall 20b of the butt can be deformed according to the desired load. In the present embodiment, the engaging recess 22 and the opening 23 are integrally formed.

The butt 2B includes an inspection window 24 through which the staple 10 is filled and how many staples 10 remain to be inspected. The inspection window 24 is formed by providing a long hole-shaped opening on the front end side of the facing side wall 20b, so that the staple 10 filled into the butt 2B can be seen.

The butt 2B includes a hole portion 25 through which the shaft 81 can be inserted. The hole portion 25 is due to the rear end side of the side wall 20b facing the shaft 81 The size is provided by a circular perforation.

The butt 2B includes a support portion 27 that supports the guiding member 5B. The support portion 27 is formed in a form that is vertical from the needle bottom portion 20a on the front end side of the butt 2B.

Figs. 25 to 28 are views showing a guiding member according to a second embodiment of the present invention, and next, a guiding member 5B constituting the butt assembly 11B of the second embodiment of the present invention will be described. Figure 25 is a front elevational view showing a guiding member constituting a butt assembly according to a second embodiment of the present invention, and Figure 26 is a side view showing a guiding member constituting the butt assembly according to the second embodiment of the present invention. schematic diagram.

Figure 27 is a side sectional view showing a guide member constituting the butt assembly according to the second embodiment of the present invention, and Figure 28 is a view showing the guide member constituting the file assembly according to the second embodiment of the present invention. view.

The guiding member 5B is made of a resin material such as plastic, the pushing guide 51B is provided on the left and right sides of the spring guiding member 50B, and the spring guiding member 50B and the pushing guiding member 51B are in the needle holder. 2B extends in the longitudinal direction.

In the guiding member 5B, the pair of pushing guides 51B are disposed in parallel at intervals one of the inner widths of the needle crowns 10a of the staples 10, and the spring guiding members 50B and the pushing guides 51B are disposed in parallel. The rear end sides are integrally coupled to each other by a bearing portion 56 and supported by the shaft 81. The bearing portion 56 is provided with a hole portion 56a so that the shaft 81 can be inserted therein. Further, the bearing portion 56 is provided with a locking convex portion 56b which is inserted into the engaging recess portion 22 of the butt 2B and protrudes toward the side portion.

In the guide member 5B, the front end sides of the push guides 51B are integrally coupled to each other by a connection portion 57, and have a shape in which the left and right push guides 51B are connected. The connecting portion 57 has a support portion 27 that is externally engageable to the butt 2B.

The rear end side of the spring guide 50B is supported by the bearing portion 56 in a cylindrical shape, a prismatic shape or the like, and the push spring 4 is insertable thereto, and is constituted by a compression coil spring which receives a compressive load, and Based on this compressive force, it extends with its restoring force against elastic deformation.

The push guide 51B includes a guide concave portion 58 to which the pusher 3B is mounted. The guiding recess 58 is formed by providing a groove in a portion of the pushing guide 51B in the height direction.

The pushing member 3B includes a pushing portion 30a that pushes against the staple 10, and a spring pushing portion 30b that pushes against the pushing spring 4, and a guide groove 35 that guides the guiding member The push guide 51B of 5B.

The pushing member 3B includes a belt engaging portion 32 to which the push belt 9 is fastened, and a belt fall prevention portion 33 which prevents the push belt 9 fastened to the belt fastening portion 32 from being detached from the pusher 3B.

The pushing portion 30a is formed to protrude outward from the front end side of the pusher 3B from the left and right sides to push the two stitches 10b of the staple 10. The spring pushing portion 30b enters the pair of pushing guides 51B to be covered in the pushing member 3B with the pushing guide 51B, and is formed by the provision of the hole portion into the spring guiding member 50B.

The guiding groove 35 is tightly fitted to the pushing guide 51B, and the pushing member 3B is covered in the pushing member 3B, and is provided with a deep groove (depressed) The groove is formed in the moving direction of the pushing member 3B. The pushing member 3B is provided with a groove (not shown) fitted to the bottom of the guiding groove 35 provided with the guiding recess 58 of the pushing guide 51B, and is configured such that it can be guided from the guiding recess 58 The upper side of the position is inserted into the push guide 51B.

The belt engaging portion 32 includes a fastening convex portion 32a that protrudes toward the upper surface of the pushing member 3B, the first fastening hole portion 90 of the pushing belt 9 is inserted therein, and includes a peeling prevention convex portion 32b for fastening from the buckle The upper end of the convex portion 32a protrudes forward so as to prevent the first engaging hole portion 90 of the push belt 9 from being detached from the engaging convex portion 32a.

The belt fall prevention portion 33 includes an abutting convex portion 33a that protrudes toward the upper surface of the pusher 3B and is more on the front side than the push belt 9 and includes a fall prevention projection 33b. The upper end of the abutting convex portion 33a protrudes rearward to avoid the detachment of the push belt 9 from the abutting convex portion 33a.

<Example of assembly process of the butt assembly according to the second embodiment>

Next, the assembly process of the butt assembly 11B according to the second embodiment of the present invention will be explained.

First, the push spring 4 is attached to the spring guide 50B of the guide member 5B, and then the pusher 3B is attached to the push guide 51B of the guide member 5B. The pusher 3B is bent upward toward the front end side of the spring guide 50B, and the spring pushing portion 30b is inserted into the spring guide 50B, on which the push spring 4 is inserted, and the guide groove 35 is inserted into the push from the front side. The guide 51B is such that the guide recess 58 of the push guide 51B can be aligned.

Therefore, the pusher 3B is mounted in such a manner as to be movable along the spring guide 50B and the push guide 51B, and the front end side of the push spring 4 is in the spiral The pusher 3B is in contact in the axial direction.

The guide member 5B provided with the pusher 3B and the push spring 4 is then attached to the butt 2B. First, the connecting portion 57 on the front end side of the guiding member 5B is engaged with the supporting portion 27 of the butt 2B, and then the bearing portion 56 on the rear end side of the guiding member 5B is inserted into the butt side wall 20b of the butt 2B. Meanwhile, the engaging convex portion 56b of the bearing portion 56 is inserted into the engaging recess portion 22 of the butt 2B, thereby being fastened thereto.

Therefore, the connecting portion 57 is supported by the supporting portion 27 of the butt 2B on the distal end side of the guiding member 5B, and the engaging convex portion 56b is supported by the engaging concave portion 22 of the butt 2B on the rear end side thereof. Similarly, in the butt assembly 11B according to the second embodiment, the push spring 4 can be simply inserted into the spring guide 50B by the procedure of attaching the push spring 4 to the guide member 5B, so that the phase Assembly time can be shortened compared to the configuration using a tension coil spring.

<Example of operation and effect of the butt assembly according to the second embodiment>

In the assembly process of the above-described file assembly 11B, the shaft hole portion 84a of the lower operation portion 8 is aligned with the hole portion 25 of the butt 2B, and the shaft 81 is inserted into the hole and riveted (calked) ).

When the shaft 81 is inserted into the hole portion 25 of the butt 2B, the shaft 81 is a hole portion 56a that is inserted into the bearing portion 56 of the guide member 5B. Thereby, the rear end side of the guide member 5B can be fixed to the butt 2B.

In the butt assembly 11B, when the guiding member 5B is mounted on the butt 2B, the spring guiding member 50B is substantially aligned with the center line of the butt 2B, and the pushing guide 51B is integrally provided to the spring guiding member 50B. On the spring guide 50B, on the left and right sides of the push spring 4.

The height of the push guide 51B is substantially the same as the spring guide 50B and slightly smaller than the length of the stitch 10b of the staple 10. A space larger than the linear width of the staple 10 is formed between the push guide 51B and the butt side wall 20b. A space equal to or larger than the linear width of the staple 10 is formed between the front end of the push guide 51B and the front wall 20c of the butt.

In the opening operation of the upper operation portion 7 using the shaft 81 as a support point, the push spring 4 is compressed and the pusher 3B is retracted by the pulling of the push belt 9, and then the space in which the staple 10 is filled is formed. The pusher 3B and the front wall 20c of the butt are provided.

When a compression coil spring is used as the configuration of the push spring 4, since the push spring 4 is compressed by the retracted pusher 3B, the push spring 4 is not exposed to the needle to be filled by the staple 10匣 2B in the space. The spring guide 50B is exposed to the space of the butt 2B into which the staple 10 is to be filled, and is provided with the push guide 51B on both sides thereof.

Therefore, when the staple 10 is filled into the needle 2B or taken out from the needle 2B, the stitch 10b of the staple 10 is guided in a space between the push guide 51B and the butt side wall 20b, thus The staple 10 can be prevented from being caught in the spring guide 50B, the push spring 4, and the like.

In the opening operation of the upper operation portion 7 using the shaft 81 as a support point, when the pusher 3B is pulled by the push belt 9, this force not only moves the pusher 3B along the push guide 51B, but this force will also push The piece 3B is raised from the push guide 51B, and the above force is applied to the pusher 3B.

Since the guiding groove 35 is tightly fitted to the pushing guide 51B, the pushing member 3B can be prevented from being detached from the push guide 51B even when the force lifts the pusher 3B from the push guide 51B.

Since the connecting portion 57 is supported by the supporting portion 27 of the butt 2B, the front end side of the push guide 51B is fixed to the butt 2B, and the shaft 81 is inserted into the bearing portion 56 of the guiding member 5B, so that The end side is also fixed to the butt 2B.

Therefore, even if there is a force application to lift the pusher 3B from the push guide 51B, the guide member 5B having the push guide 51B can be prevented from being detached from the butt 2B, and the push guide 51B is also prevented from being largely large. Deformation.

According to the above embodiments and modified examples, the stapler 1A, 1B may include: a needle 2A, 2B; a pusher 3A, 3B for pushing the staples 10 located in the butt 2A, 2B; a pushing spring 4, which is constituted by a compression coil spring to receive a compressive load and is adapted to push the pushing members 3A, 3B; a guiding member 5A, 5B is integrally molded to suppress the bending of the pushing spring based on its own compressive force The spring guides 50A, 50B and the push guides 51A, 51B for guiding the movement of the pushers 3A, 3B and also guiding the filling/extracting of the staples 10 are mounted on the needles 2A, 2B; a driving member 6, one after another separating the staples 10 in the magazine and driving the individual staples 10; an upper operating portion 7, the driving member 6 is fixed thereto; and the lower operating portion 8, A nip portion is provided for bending the stitch 10b of the staple 10 penetrating through the paper, and the magazine 2A, 2B and the upper operating portion 7 are rotatably supported there.

According to the above configuration, the upper surface of the butt is opened by opening the upper operation portion, and when the pusher is retracted, the push guide is provided in the space inside the needle, where the staple can be filled and the nail is filled. Loading and unloading of the book pins Being guided.

According to the above configuration, since the compression coil spring is used as the urging spring to push the urging member, the component cost price can be depressed as compared with the tension coil spring.

In addition, since the guide member for guiding the loading and removal of the staple is provided in the file, the staple can be prevented from being caught in the file, and thus the loading and removal of the staple can be performed easily and reliably. .

In addition, since the spring guide for guiding the push spring and the push guide for guiding the pusher and the staple are integrally formed and provided, the function of guiding the staple is increased without Increasing the number of components is relative to conventional staplers. Therefore, a stapler having this function can be provided at a lower price.

Further, according to the above embodiments and modified examples, the staplers 1A, 1B may include: a needle 2A, 2B; a pushing member 3A, 3B for pushing the staples in the needles 2A, 2B a needle 10; a pushing spring 4 for abutting the pushing members 3A, 3B; a driving member 6, one after another separating the staples 10 in the butts 2A, 2B and driving the individual staples 10; The portion 7 includes a driving member 6; the lower operating portion 8 is provided with a pressing portion for bending the stitch 10b of the staple 10 penetrating through the paper, and the butt 2A, 2B and the upper operating portion 7 are rotatably Supported herein; and a push belt 9 that retracts the pushers 3A, 3B with respect to the pushers 3A, 3B by the opening operation of the upper operating portion 7. At least one of the pushing members 3A, 3B and the upper operating portion 7 may include: a belt engaging portion 32, 62, wherein the engaging hole portions 90, 91 provided on one end side of the pushing belt 9 are connectable thereto, thereby being buckled Push belt 9; And the belt fall prevention portions 33, 63 are abutted to one end of the push belt 9 of the belt fastening portions 32, 62 to avoid the detachment of the push belt 9 from the belt fastening portions 32, 62.

According to the above configuration, the mounting of the pushing belt on one of the pushing member or the upper operating portion or the pushing member or the upper operating portion is performed by inserting the fastening portion of the belt into the engaging hole portion of the pushing belt. Execution, thereby pulling the push belt, and the end of the push belt is also pushed into the belt fall prevention portion provided to the pusher.

According to the above structure, the push belt can be attached to the pusher by pushing and pulling the push belt to and from a surface relative to one of the pusher or the upper operating portion or the pusher or the upper operating portion, which is pushed With the mounting portion, the above operation can be simplified and can be automated.

In summary, there is no need for a separate component to install the push belt, the cost incurred in the process of installing the push belt can be reduced, and the stapler can be provided at a lower price, with the upper operating portion being opened and closed and Retracts the function of the pusher interconnection. In addition, the present invention does not limit the stapler to be equipped with a push belt, and the other configuration is also feasible to easily connect a plate-shaped belt to a target at a low cost, and has a fastening hole portion and a buckle portion. And the configuration of the belt drop prevention portion.

The present invention has been described above with reference to the preferred embodiments thereof, and is not intended to limit the scope of the present invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

1A‧‧ ‧ stapler (stapler)

1B‧‧ ‧ stapler (stapler)

10‧‧‧ Staples (staples)

10a‧‧‧needle crown

10b‧‧‧legs

11A‧‧‧magazine assembly

11B‧‧‧magazine assembly

2A‧‧‧Acupuncture (magazine)

2B‧‧‧Acupuncture (magazine)

20a‧‧‧needle bottom (magazine bottom)

20b‧‧‧magazine side wall

20c‧‧‧magazine front wall

20d‧‧‧ Staple cover

20e‧‧‧opening section

21‧‧‧locking convex portion

22‧‧‧locking concave portion

23‧‧‧opening section

24‧‧‧Check window

25‧‧‧hole portion

26a‧‧‧first support portion

26b‧‧‧second support portion

27‧‧‧support portion

3A‧‧‧Pushing parts (pusher)

3B‧‧‧Pushing parts (pusher)

30a‧‧‧Pressing portion

30b‧‧‧spring pressing portion

31‧‧‧guide groove (guide proove)

32‧‧‧With band locking portion

32a‧‧‧locking convex portion

32b‧‧‧falling-out preventing convex portion

33‧‧‧band falling-out preventing portion

33a‧‧‧butting convex portion

33b‧‧‧falling-out preventing convex portion

34‧‧‧guide convex portion

35‧‧‧guide groove

4‧‧‧Promoting springs (pusher-spring)

5A‧‧‧guide member

5B‧‧‧guide member

50A‧‧‧spring-guide

50B‧‧‧spring-guide

51A‧‧‧pushing guide (pusher-guide)

51B‧‧‧pushing guide (pusher-guide)

52a‧‧‧first connecting portion

52b‧‧‧second connecting portion

53a‧‧‧first shaft portion

53b‧‧‧first shaft portion

54‧‧‧guide convex portion

55a‧‧‧shaft contact portion

55b‧‧‧step portion

56‧‧‧bearing portion

56a‧‧‧hole portion

56b‧‧‧locking convex portion

57‧‧‧connection section

58‧‧‧guide concave portion

6‧‧‧Driver

60‧‧‧driver section

61a‧‧‧magazine return spring

61b‧‧‧ lower handle return spring

62‧‧‧With band locking portion

62a‧‧‧locking piece portion

62b‧‧‧receiver (receptor)

63‧‧‧band falling-out preventing portion

64‧‧‧hole portion

7‧‧‧Upper operation

70‧‧‧main body portion

71a 71b‧‧‧cover

72‧‧‧locking convex portion

8‧‧‧lower operation

80‧‧‧Clamping

81‧‧‧Axis

82‧‧‧main body portion

83‧‧‧cover

84‧‧‧side wall portion

84a‧‧‧shaft hole portion

84b‧‧‧locking convex portion

9‧‧‧Pushing belt (pusher-band)

90‧‧‧first locking hole portion

91‧‧‧Second locking hole portion

92‧‧‧guide hole portion

P‧‧‧paper (paper sheet)

1 is a schematic exploded view showing a stapler according to a first embodiment of the present invention; FIG. 2 is a schematic view showing a stapler according to a first embodiment of the present invention; and FIG. 3 is a view showing the first according to the present invention. 4 is a schematic side view of a file assembly according to a first embodiment of the present invention; and FIG. 5 is a side view showing a needle assembly according to a first embodiment of the present invention; 6 is a front cross-sectional view showing a file assembly according to a first embodiment of the present invention; and FIG. 7 is a front view showing a guide member constituting a file assembly according to a first embodiment of the present invention; 8 is a side view showing a guide member constituting a file assembly according to a first embodiment of the present invention; and FIG. 9 is a view showing a guide member constituting the file assembly according to the first embodiment of the present invention; FIG. 10 is a front view showing a guide member constituting a file assembly according to a first embodiment of the present invention; and FIGS. 11(a) and 11(b) are diagrams showing a first embodiment according to the present invention. Promote the overall configuration of the retraction mechanism; Section 12(a) 12 (b) a schematic view showing the pusher of the embodiment of the present invention, a first embodiment according to the display; 13(a) and 13(b) are diagrams showing a main part configuration of a driving member according to a first embodiment of the present invention; and FIGS. 14(a) to 14(c) are diagrams showing a first embodiment according to the present invention. Figure 15 (a) ~ 15 (c) shows a side cross-sectional view of the push belt to the pusher according to the first embodiment of the present invention; 16 (a) ~ 16(b) is a schematic view showing the mounting of the push belt to the driving member according to the first embodiment of the present invention; and FIGS. 17(a) to 17(b) are diagrams showing the driving belt according to the first embodiment of the present invention. FIG. 18(a) and 18(b) are schematic views showing the arrangement of main parts of a driving member according to a modified example of the first embodiment of the present invention; 19(a) and 19(b) 1 is a schematic view showing a driving member and a push belt according to a modified example of the first embodiment of the present invention; FIG. 20 is a schematic exploded view showing a stapler according to a second embodiment of the present invention; 2 is a front view of a needle-clamp assembly according to a second embodiment of the present invention; and FIG. 22 is a side view showing a needle-clamp assembly according to a second embodiment of the present invention; FIG 23 show side cross-sectional view of the needle system of the second embodiment in accordance with the present invention, the cartridge assembly; FIG. 24 lines sectional view before the needle cassette assembly according to a second embodiment of the present invention shows; Figure 25 is a front elevational view showing a guide member constituting the butt assembly according to the second embodiment of the present invention; and Figure 26 is a view showing the side of the guide member constituting the butt assembly according to the second embodiment of the present invention. Figure 27 is a side cross-sectional view showing a guide member constituting a file assembly according to a second embodiment of the present invention; and Figure 28 is a view showing a guide assembly for forming a file assembly according to a second embodiment of the present invention. The front view of the lead member.

1A‧‧ ‧ stapler (stapler)

10‧‧‧ Staples (staples)

10a‧‧‧needle crown

10b‧‧‧legs

2A‧‧‧Acupuncture (magazine)

20a‧‧‧needle bottom (magazine bottom)

20b‧‧‧magazine side wall

20c‧‧‧magazine front wall

20d‧‧‧ Staple cover

20e‧‧‧opening section

21‧‧‧locking convex portion

22‧‧‧locking concave portion

23‧‧‧opening section

24‧‧‧Check window

25‧‧‧hole portion

3A‧‧‧Pushing parts (pusher)

32‧‧‧With band locking portion

33‧‧‧band falling-out preventing portion

4‧‧‧Promoting springs (pusher-spring)

5A‧‧‧guide member

50A‧‧‧spring-guide

51A‧‧‧pushing guide (pusher-guide)

52a‧‧‧first connecting portion

52b‧‧‧second connecting portion

53a‧‧‧first shaft portion

53b‧‧‧first shaft portion

54‧‧‧guide convex portion

55a‧‧‧shaft contact portion

55b‧‧‧step portion

6‧‧‧Driver

60‧‧‧driver section

61a‧‧‧magazine return spring

61b‧‧‧ lower handle return spring

62‧‧‧With band locking portion

63‧‧‧band falling-out preventing portion

64‧‧‧hole portion

7‧‧‧Upper operation

70‧‧‧main body portion

71a, 71b‧‧‧cover

72‧‧‧locking convex portion

8‧‧‧lower operation

80‧‧‧Clamping

81‧‧‧Axis

82‧‧‧main body portion

83‧‧‧cover

84‧‧‧side wall portion

84a‧‧‧shaft hole portion

84b‧‧‧locking convex portion

9‧‧‧Pushing belt (pusher-band)

90‧‧‧first locking hole portion

91‧‧‧Second locking hole portion

Claims (7)

A stapler (1A, 1B) comprising: a needle (2A, 2B); a pushing member (3A, 3B) for pushing a staple (10A, 2B) in the needle (10A) a push spring (4) consisting of a compression coil spring to receive a compressive load and adapted to push the pusher (3A, 3B); a guiding member (5A, 5B) to form a spring guide by integral molding a lead member (50A, 50B) and a push guide member (51A, 51B) for suppressing bending of the push spring based on a compressive force of itself, the push guide member being used for Guide the movement of the pushing member (3A, 3B), and guide the filling/extracting of the staple (10), which is installed in the butt (2A, 2B); a driving member (6), The staples (10) in the magazine are separated one after another, and drive the individual staples (10); an upper operating portion (7), the driving member (6) is fixed thereto; and the lower operating portion (8) Provided is a nip for bending a stitch (10b) of the staple (10) penetrating through the paper, and the needle shank (2A, 2B) and the upper operating portion (7) are rotatably supported by on. A stapler (1A, 1B) according to claim 1, wherein the push spring (4) is inserted into the spring guide (50A, 50B), and wherein the push guide ( 51A, 51B) are disposed on the left and right sides of the spring guides (50A, 50B), and the pins (10b) of the staples (10) can be inserted into a space formed on the push guides (51A, 51B) And between the needle side wall (20b) of one of the needle files (2A, 2B). A stapler (1A) according to claim 1 or 2, wherein a first shaft portion (53a) is provided on a front end side of the spring guide member (50A), and a second shaft portion (53b) is provided on one of the rear end sides of the spring guide (50A), wherein the first shaft portion (53a) is insertable into one of the first support portions (26a) provided to the butt (2A) a front end side, and the second shaft portion (53b) is insertable into one of the second support portions (26b) provided on one of the rear end sides of the butt (2A), and wherein the guiding member (5A) is supported by the first support portion (26a) on the front end side of the butt (2A), and the second support portion (26b) is supported on the rear end side of the butt (2A). The stapler (1B) according to claim 1 or 2, wherein the guiding member (5B) is supported by the butt (2B) by a shaft (81) for The butt (2B) is supported to be rotatable relative to the upper operating portion (7) and the lower operating portion (8). A stapler (1A, 1B) according to claim 1 or 2, wherein the push guide (51A, 51B) is held by the push spring (4) at the pusher (3A, 3B) The movement of the pusher (3A, 3B) is guided in the direction of the ejector and the vertical movement of one of the pushers (3A, 3B) is controlled. The stapler (1A, 1B) of claim 1 or 2, wherein at least one space is provided in the push guide (51A, 51B) and the needle (2A, 2B) Between the front wall (20c), an individual staple (10) can be passed therethrough. The stapler (1A, 1B) according to claim 1 or 2, further comprising a push belt (9), by transmitting one of the upper operating portions (7) to the pusher ( 3A, 3B) and the pusher (3A, 3B) is shrunk return.