JP2013039630A - Stapler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-cost stapler capable of making the opening/closing of a handle interlocked with the retreat of a pusher.SOLUTION: The stapler 1A includes a pusher band 9 conveying a motion to open an upper handle 7 to the pusher 3A and retracting the pusher 3A. The pusher 3A includes a band locking part 32 into which a first locking hole 90 of the pusher band 9 is inserted to be locked with the pusher band 9; and a band retaining part 33 against which an end of the pusher band 9 locked with the band locking part 32 is abutted to prevent the pusher band 9 from being released from the band locking part 32. The upper handle 7 contains a band locking part 62 where a second locking hole 91 of the pusher band 9 is inserted into a driver 6 to be locked with the pusher band 9, and a band retaining part 63 against which the end of the pusher band 9 locked with the band engaging part 62 is abutted to prevent the pusher band 9 from being released from the band locking part 62.

Description

  The present invention relates to a structure for connecting a sheet-like band to an object, and more particularly to a stapler that drives out staples and binds paper, and further relates to a stapler provided at a low cost.

  In a stapler that ejects staples and binds paper, a magazine for loading staples, a pusher for pressing the staples loaded in the magazine toward the front wall of the magazine, and a pusher spring for pressing the pusher are provided.

  The stapler provided at a lower price than the prior art does not have a structure that interlocks opening and closing of the handle and retracting the pusher, and when loading staples, the handle is opened and the pusher is moved manually ( For example, see Patent Document 1).

  On the other hand, for a stapler to which a high function is added, there has been proposed a technology having a configuration in which opening / closing of a handle and retraction of a pusher are interlocked. Conventionally, in a configuration in which opening / closing of the handle and retraction of the pusher are interlocked, the pusher and the handle are connected by a link made of a metal material.

  On the other hand, in order to reduce the cost of components, a technique for connecting the pusher and the handle side with a sheet-like pusher band made of a resin material or the like has been proposed (for example, see Patent Document 2).

Japanese Utility Model Publication No. 36-14408 JP 2009-012093 A

  In the configuration in which the pusher and the handle side are connected with a sheet-like pusher band made of a resin material or the like, a technique of attaching the pusher band using a separate part to the pusher or the like, or as described in Patent Document 2 A technique for attaching a pusher band on the back side of a pusher or the like has been proposed.

  However, in the technology using another part, the cost of the part is increased. Further, in the technique of attaching the pusher band on the back side of the pusher or the like, the process of attaching the pusher band becomes complicated, and the cost generated in the process of attaching the pusher band increases.

  For this reason, it is possible to provide a high-performance, high-performance stapler with a structure that interlocks opening and closing of the handle and retracting the pusher, but such a function can be achieved without significantly increasing the price with a low-cost stapler. It was difficult to implement.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a stapler capable of mounting a configuration in which opening / closing of a handle and retracting of a pusher are interlocked at low cost.

  In order to solve the above-described problems, the present invention separates a magazine loaded with staples, a pusher that presses the staple loaded in the magazine, a pusher spring that pushes the pusher, and a staple loaded in the magazine into one. A driver, an upper handle provided with the driver, a clincher that bends the staple foot of the staple that penetrates the paper, a lower handle on which the magazine and the upper handle are rotatably supported, and an upper handle is opened. A pusher band that transmits the operation to the pusher and retracts the pusher is provided. Either the pusher or the upper handle, or the pusher and the upper handle are inserted into the locking hole provided on the end of the pusher band. And a band locking part for locking the pusher band, and a band locking part. End of Sshabando is abutted, a stapler provided with a retaining portion band to prevent Pusshabando deviates from the band locking portion.

  In the stapler of the present invention, the pusher band is attached to either the pusher or the upper handle, or to the pusher and the upper handle, by inserting the locking hole of the pusher band into the band locking portion and pulling the pusher band, This is performed by pushing the end of the pusher band into a band retaining portion provided in the pusher.

  According to the stapler of the present invention, the pusher is operated by pressing and pulling the pusher band from either the pusher or the upper handle, which is a pusher band attachment site, or from one surface side with respect to the pusher and the upper handle. The band can be attached to the pusher, the work is easy, and the work can be automated.

  As a result, there is no need for separate parts for attaching the pusher band, and it is possible to reduce the cost generated in the process of attaching the pusher band, and to add staples with a function for interlocking opening and closing of the upper handle and retracting the pusher. Can be offered at a low price. In addition, the present invention is not limited to the attachment of the pusher band of the stapler, and the configuration of easily connecting the sheet-like band to the object by the configuration of the locking hole, the band locking portion, and the band retaining portion is low in cost. Can be realized.

It is a disassembled perspective view which shows an example of the stapler of 1st Embodiment. It is a perspective view which shows an example of the stapler of 1st Embodiment. It is a top view which shows an example of the magazine assembly of 1st Embodiment. It is a side view which shows an example of the magazine assembly of 1st Embodiment. It is a sectional side view which shows an example of the magazine assembly of 1st Embodiment. It is front sectional drawing which shows an example of the magazine assembly of 1st Embodiment. It is a top view which shows an example of the guide member which comprises the magazine assembly of 1st Embodiment. It is a side view which shows an example of the guide member which comprises the magazine assembly of 1st Embodiment. It is a sectional side view which shows an example of the guide member which comprises the magazine assembly of 1st Embodiment. It is a front view which shows an example of the guide member which comprises the magazine assembly of 1st Embodiment. It is explanatory drawing which shows an example of the whole structure of the pusher evacuation mechanism of 1st Embodiment. It is explanatory drawing which shows an example of the pusher of 1st Embodiment. It is explanatory drawing which shows the principal part structure of the driver of 1st Embodiment. It is a perspective view which shows an example of the attachment process to the pusher of the pusher band of 1st Embodiment. It is a sectional side view which shows an example of the attachment process to the pusher of the pusher band of 1st Embodiment. It is a perspective view which shows an example of the attachment process to the driver of the pusher band of 1st Embodiment. It is a fractured perspective view which shows an example of the attachment process to the driver of the pusher band of 1st Embodiment. It is explanatory drawing which shows the principal part structure of the driver of the modification of 1st Embodiment. It is explanatory drawing which shows the modification of the pusher of 1st Embodiment, and a pusher band. It is a disassembled perspective view which shows an example of the stapler of 2nd Embodiment. It is a top view which shows an example of the magazine assembly of 2nd Embodiment. It is a side view which shows an example of the magazine assembly of 2nd Embodiment. It is a sectional side view which shows an example of the magazine assembly of 2nd Embodiment. It is front sectional drawing which shows an example of the magazine assembly of 2nd Embodiment. It is a top view which shows an example of the guide member which comprises the magazine assembly of 2nd Embodiment. It is a side view which shows an example of the guide member which comprises the magazine assembly of 2nd Embodiment. It is a sectional side view which shows an example of the guide member which comprises the magazine assembly of 2nd Embodiment. It is a front view which shows an example of the guide member which comprises the magazine assembly of 2nd Embodiment.

  Hereinafter, embodiments of a stapler of the present invention will be described with reference to the drawings.

<Configuration example of the stapler according to the first embodiment>
FIG. 1 is an exploded perspective view illustrating an example of a stapler according to the first embodiment, and FIG. 2 is a perspective view illustrating an example of a stapler according to the first embodiment. The overall configuration of the stapler 1A according to the first embodiment will be described. The stapler 1A includes a magazine 2A in which staples 10 are loaded.

  The staple 10 loaded in the magazine 2A includes a needle crown 10a and two needle legs 10b that are bent so as to be substantially parallel to one direction from both ends of the needle crown 10a. 10 are bonded together to form a series of staples 10.

  The stapler 1A includes a pusher 3A that presses the staple 10 loaded in the magazine 2A in a line width direction orthogonal to the needle crown 10a, and a pusher spring 4 that presses the pusher 3A.

  Further, the stapler 1A includes a spring guide 50A that guides the pusher spring 4, and a guide member 5A in which a pusher guide 51A that guides the movement of the pusher 3A and guides loading and unloading of the staple 10 is integrally formed. Further, the stapler 1A includes a driver 6 for separating and driving the staples 10 loaded in the magazine 2A into one, and an upper handle 7 on which the driver 6 is provided.

  Further, the stapler 1A is provided with a clincher 80 that bends the needle foot 10b of the staple 10 that has penetrated the paper, and includes a lower handle 8 on which the magazine 2A and the upper handle 7 are rotatably supported by a shaft 81. Further, the stapler 1A includes a pusher band 9 that transmits an operation of opening the upper handle 7 to the pusher 3A to retract the pusher 3A.

  In the stapler 1A, the pusher spring 4 is attached to the spring guide 50A, and the guide member 5A in which the pusher 3A is attached to the pusher guide 51A is attached to the inside of the magazine 2A to constitute the magazine assembly 11A.

  The magazine assembly 11A is rotatably attached to the lower handle 8 by a shaft 81. The upper handle 7 is rotatably attached to the lower handle 8 and the magazine assembly 11A by a shaft 81.

  In the stapler 1A, the driver 6 is attached to the upper handle 7, and the sheet P is sandwiched between the magazine 2A and the clincher 80 of the lower handle 8 by the operation of grasping the upper handle 7 and the lower handle 8, and the driver 6 One staple 10 is ejected from the magazine 2A.

  One staple 10 driven out from the magazine 2 </ b> A passes through the paper P sandwiched between the magazine 2 </ b> A and the clincher 80 of the lower handle 8, and is folded by the clincher 80, whereby the paper P is bound.

  Further, in the stapler 1A, the pusher 3A and the driver 6 on the upper handle 7 side are connected by the pusher band 9, and the upper handle 7 is opened with the shaft 81 as a fulcrum, so that the pusher 3A compresses the pusher spring 4 by the pusher band 9. The staple 10 is pulled and retracted, and the staple 10 can be loaded into the magazine 2A of the magazine assembly 11A.

  The magazine assembly 11A is provided with pusher guides 51A on the left and right sides of the spring guide 50A and the pusher spring 4, and prevents the staple 10 from being caught by the spring guide 50A or the pusher spring 4 or the like when the staple 10 is loaded into or removed from the magazine 2A. Is done.

  The stapler 1A closes the upper handle 7 with the shaft 81 as a fulcrum, and the pusher 3A is pressed by the restoring force of the pusher spring 4, and the staple 10 loaded in the magazine 2A is pressed.

  The upper handle 7 includes a main body portion 70 formed by bending a plate-like metal material into a predetermined shape by bending such as a press, and covers 71a and 71b made of resin. The upper handle 7 includes a fixing mechanism (not shown) to which the driver 6 is attached on the lower surface of the main body 70. Further, the upper handle 7 includes a locking convex portion 72 that is locked to the magazine 2 </ b> A and a bearing portion (not shown) that is locked to the shaft 81 on the opposite side wall portion of the main body portion 70.

  The lower handle 8 includes a main body portion 82 formed of a plate-like metal material into a predetermined shape by bending such as a press, and a cover 83 made of resin. The lower handle 8 includes a clincher 80 on the distal end side of the main body portion 82. The clincher 80 is configured by integrally molding a groove portion for guiding the needle foot 10 b of the staple 10 with the main body portion 82.

  Further, the lower handle 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 84 a into which the shaft 81 is inserted is formed through the opposing side wall portion 84. Further, the lower handle 8 is formed with a protruding protrusion 84b that is locked to the magazine 2A on the inner side of the opposite side wall 84.

<Configuration Example of Magazine Assembly of First Embodiment>
3-6 shows an example of the magazine assembly which comprises the stapler of 1st Embodiment, Next, the magazine 2A which comprises the magazine assembly 11A of 1st Embodiment is demonstrated.

  Here, FIG. 3 is a plan view showing an example of the magazine assembly of the first embodiment, and FIG. 4 is a side view showing an example of the magazine assembly of the first embodiment. FIG. 5 is a side sectional view showing an example of the magazine assembly of the first embodiment, and FIG. 6 is a front sectional view showing an example of the magazine assembly of the first embodiment.

  The magazine 2A includes a magazine bottom surface 20a on which the staple 10 is placed. The magazine 2 </ b> A includes a magazine side wall 20 b that regulates the position in the width direction along the needle crown 10 a of the staple 10 and a magazine front wall 20 c that regulates the position in the front-rear direction along the line width direction of the staple 10. Further, the magazine 2A includes a staple cover 20d that regulates the vertical position of the staple 10 along the needle foot 10b.

  The magazine 2A is formed into a predetermined shape by bending a plate-like metal material by a punching or bending process such as a press, and is provided with a space where the staple 10 can be loaded and the upper surface is opened. That is, in the magazine 2A, a pair of magazine side walls 20b are configured in a form of being erected from both sides of the magazine bottom surface 20a by bending both sides of the magazine bottom surface 20a upward in one direction.

  The magazine 2A is configured so that the inner width of the opposing magazine side wall 20b is such that the staple 10 can be inserted, and is substantially equal to the outer width of the needle crown 10a of the staple 10, and the staple 10 is interposed between the opposing magazine side walls 20b. The position in the width direction of the staple 10 that can be loaded and loaded is regulated.

  Further, in the magazine 2A, the staple cover 20d is configured so as to protrude inward from the magazine side wall 20b by bending the upper end portion of the front end side of each magazine side wall 20b inward.

  The magazine 2 </ b> A is configured such that the inner width of the opposing staple cover 20 d is narrower than the outer width of the needle crown 10 a of the staple 10. Further, the magazine 2A is configured to be approximately the same as the length of the needle foot 10b of the staple 10 so that the interval between the magazine bottom surface 20a and the staple cover 20d can be inserted.

  Further, the length of the staple cover 20d is longer than that of the connected series of staples 10. In the magazine 2A, the size of the pusher 3A, the length of the magazine 2A, etc. are set so that two staples 10 can be loaded with the pusher spring 4 compressed and the pusher 3A retracted to the last retracted position. Is set. For this reason, when the two staples 10 are loaded in the magazine 2A, both ends in the width direction of the needle crown 10a of the first staple 10 are regulated over the entire length, and the leading end side of the second staple 10 is placed. Is partly regulated.

  As a result, in the magazine 2A, the staple 10 can be loaded between the magazine bottom surface 20a and the staple cover 20d, the vertical movement of the loaded staple 10 is restricted, and the staples from between the opposing staple covers 20d are stapled. 10 is prevented from coming off. Even when two staples 10 are loaded, the vertical movement of the loaded staples 10 is restricted without providing another cover.

  Further, in the magazine 2A, the front side of each magazine side wall 20b is bent inward so that the front side wall 20c of the magazine is configured so as to close the front end of the opposite magazine side wall 20b. In addition, the magazine 2A is provided with an opening 20e at a front end side of the magazine bottom surface 20a and below the magazine front wall 20c so as to pass the staple 10 separated into one.

  Thus, in the magazine 2A, the front end of the staple 10 in the line width direction is pressed against the magazine front wall 20c, whereby the position of the staple 10 in the front-rear direction is regulated, and the position of the most recent single staple 10 is determined. Is regulated.

  The magazine 2A includes a locking projection 21 that holds the upper handle 7 in the closed position. The locking projection 21 protrudes outward from the opposing magazine side wall 20b, and the locking projection 72 of the upper handle 7 is locked.

  Further, the magazine 2A includes a locking recess 22 that holds the lower handle 8 in the closed position. The locking recess 22 is configured by providing an opening in the opposing magazine side wall 20b, and the locking protrusion 84b of the lower handle 8 is locked.

  Furthermore, the magazine 2 </ b> A includes an opening 23 that adjusts a load applied to the upper handle 7 by the operation of locking the upper handle 7 to the locking projection 21. The opening 23 is configured by providing an opening in the opposing magazine side wall 20b so that the portion of the magazine side wall 20b where the locking projection 21 is provided is deformed by a desired load. In this example, the locking recess 22 and the opening 23 are integrally formed.

  The magazine 2 </ b> A includes a confirmation window portion 24 that allows confirmation of the presence / absence of the staple 10 and the remaining number. The confirmation window portion 24 is configured by providing a slot-shaped opening in the present example on the leading end side of the opposing magazine side wall 20b so that the staple 10 loaded in the magazine 2A can be seen.

  The magazine 2A includes a hole 25 into which the shaft 81 is inserted. The hole 25 is configured by providing a circular through hole matching the diameter of the shaft 81 on the rear end side of the opposing magazine side wall 20b.

  The magazine 2A includes a first support portion 26a and a second support portion 26b that support the guide member 5A. The first support portion 26a is configured so as to stand upright from the magazine bottom surface 20a on the front end side of the magazine 2A. In this example, a rectangular piece with a circular through hole is formed on the magazine bottom surface 20a. It is constructed as a single unit in a bent form.

  The second support portion 26b is configured so as to stand upright from the magazine bottom surface 20a on the rear end side of the magazine 2A. In this example, a rectangular piece having a circular through hole is formed as a magazine bottom surface 20a. It is configured integrally with a form that causes bending.

  FIGS. 7-10 shows an example of the guide member of 1st Embodiment, Next, the guide member 5A which comprises the magazine assembly 11A of 1st Embodiment is demonstrated. Here, FIG. 7 is a plan view showing an example of a guide member constituting the magazine assembly of the first embodiment, and FIG. 8 is an example of a guide member constituting the magazine assembly of the first embodiment. FIG.

  FIG. 9 is a side sectional view showing an example of a guide member constituting the magazine assembly of the first embodiment, and FIG. 10 is an example of a guide member constituting the magazine assembly of the first embodiment. FIG.

  The guide member 5A is made of a resin material such as plastic. Pusher guides 51A are provided on the left and right sides of the spring guide 50A, and the spring guide 50A and the pusher guide 51A extend along the longitudinal direction of the magazine 2A.

  The guide member 5A has a shape in which a pair of pusher guides 51A are arranged in parallel at intervals slightly shorter than the inner width of the needle crown 10a of the staple 10, and the distal end side of the spring guide 50A and the pusher guide 51A connects between the left and right pusher guides 51A. They are integrally connected by the first connecting part 52a. In addition, the rear end side of the pusher guide 51A is integrally connected to the guide member 5A by a second connecting portion 52b having a shape connecting the left and right pusher guides 51A.

  The spring guide 50A has a cylindrical shape, a prismatic shape, or the like into which a pusher spring 4 configured by a compression coil spring that receives a compressive load and expands with a restoring force against elastic deformation due to compression can be inserted, and a distal end side of the first guide portion 52a. Supported by

  The spring guide 50A is provided in a form in which a first shaft portion 53a inserted into the first support portion 26a of the magazine 2A protrudes from the front of the first connecting portion 52a. Further, in the spring guide 50A, the second shaft portion 53b inserted into the second support portion 26b of the magazine 2A is constituted by the rear end portion of the spring guide 50A.

  The pusher guide 51A includes a guide protrusion 54 that guides the pusher 3A. As for the guide convex part 54, the convex part which protrudes toward the outer side from the side part of the pusher guide 51A is provided along the longitudinal direction of the pusher guide 51A according to the movable range of the pusher 3A.

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

  The guide member 5A is configured in a shape that can be integrally molded without using a slide mold, and the cost of the mold is reduced to reduce the component cost.

  In the magazine assembly 11A, when the guide member 5A is attached to the magazine 2A and the shaft 81 is inserted into the hole 25 of the magazine 2A, the stepped portion 55b enters the lower side of the shaft 81 and the shaft abutting portion 55a is pivoted. It hits 81. Thereby, the rear end side of the guide member 5A is fixed to the magazine 2A.

<Example of Configuration of Pusher Retraction Mechanism of First Embodiment>
FIGS. 11 to 13 show an example of the pusher retracting mechanism according to the first embodiment. Next, the configurations of the pusher, the driver, and the pusher band constituting the pusher retracting mechanism according to the first embodiment will be described. .

  Here, FIG. 11 shows an example of the overall configuration of the pusher retracting mechanism of the first embodiment, and FIG. 11A is a plan view showing an example of the overall configuration of the pusher retracting mechanism of the first embodiment. FIG. 11 and FIG. 11B are side sectional views showing an example of the entire configuration of the pusher retracting mechanism according to the first embodiment.

  FIG. 12 shows an example of the pusher according to the first embodiment, FIG. 12A is a plan view showing an example of the pusher according to the first embodiment, and FIG. It is a sectional side view which shows an example of the pusher of this embodiment.

  Further, FIG. 13 shows an example of the main part configuration of the driver, which is a part to which the pusher band is locked, and FIG. 13A is a plan view showing an example of the main part configuration of the driver of the first embodiment. FIG. 13 and FIG. 13B are side cross-sectional views showing an example of a main configuration of the driver according to the first embodiment.

  First, the configuration of the pusher 3A will be described. The pusher 3A includes a pressing portion 30a that presses the staple 10, a spring pressing portion 30b that is pressed by the pusher spring 4, and a guide groove 31 that is guided by the pusher guide 51A of the guide member 5A. Is provided.

  In addition, the pusher 3A includes a band locking portion 32 to which the pusher band 9 is locked, and a band retaining portion 33 that prevents the pusher band 9 locked to the band locking portion 32 from being detached from the pusher 3A. .

  The pressing portion 30a is configured to protrude forward from both the left and right sides of the distal end side of the pusher 3A, and presses the two needle feet 10b of the staple 10. The spring pressing portion 30b is configured to be provided inside the pusher 3A covering the pusher guide 51A and between the pair of pusher guides 51A and to be inserted into the spring guide 50A.

  The guide groove 31 is fitted inside the pusher guide 51A covering the pusher guide 51A at a portion facing the outer side portion of each pusher guide 51A and on the guide convex portion 54 of the pusher guide 51A, along the moving direction of the pusher 3A. A concave groove is provided.

  The band locking portion 32 protrudes from the upper surface of the pusher 3A, protrudes forward from the locking protrusion 32a into which the first locking hole 90 of the pusher band 9 is inserted, and the upper end of the locking protrusion 32a. The first locking hole 90 of the band 9 is provided with a retaining prevention protrusion 32b that prevents the band 9 from coming off from the locking protrusion 32a.

  The band retaining portion 33 projects from the upper surface of the pusher 3A in front of the band locking portion 32, projects from the abutting convex portion 33a against which the pusher band 9 is abutted, and projects from the upper end of the abutting convex portion 33a to the rear. 9 is provided with a retaining prevention convex portion 33b for preventing the tip of 9 from coming off the abutting convex portion 33a.

  Next, the configuration of the driver 6 will be described. The driver 6 drives the staple unit 10 to drive the driver unit 60, the upper handle 7 to restore the magazine 2A, and the upper handle 7 and the magazine 2A. A lower handle return spring 61b for restoring the lower handle 8 is provided.

  Further, the driver 6 includes a band locking portion 62 that locks the pusher band 9 and a band retaining portion 63 that prevents the pusher band 9 locked to the band locking portion 62 from coming off the driver 6. .

  The driver 6 is attached to the lower surface of the upper handle 7, and the driver unit 60 projects downward from the distal end side of the upper handle 7. The driver unit 60 has a width substantially equal to the outer width of the needle crown 10a of the staple 10 and a plate thickness substantially equal to the line width of the staple 10, and between the opposing magazine side walls 20b of the magazine 2A, It is inserted along the magazine front wall 20c.

  In the driver 6, a magazine return spring 61 a and a lower handle return spring 61 b protrude downward from the rear end side of the upper handle 7. The magazine return spring 61a comes into contact with one magazine side wall 20b of the magazine 2A with the upper handle 7 closed, and is pressed by an operation of grasping the upper handle 7 and the lower handle 8. The lower handle return spring 61b is in contact with one side wall 84 of the lower handle 8 in a state where the lower handle 8 is closed, and is pressed by an operation of gripping the upper handle 7 and the lower handle 8.

  The band locking portion 62 protrudes into the hole portion 64 that penetrates the driver 6, and the second locking hole portion 91 of the pusher band 9 is inserted and the second locking hole portion 91 of the pusher band 9 protrudes. An engaging piece 62a to be applied is provided. The locking piece 62 a is provided with a step with respect to the driver 6 at a height equivalent to the plate thickness of the driver 6, and protrudes from the surface of the driver 6.

  The band retaining portion 63 is constituted by the other side of the hole portion 64, and is provided with a step with respect to the driver 6 at a height approximately equal to the plate thickness of the driver 6. Protrudes from the surface.

  Next, the pusher band 9 will be described. The pusher band 9 is made of a resin material such as a sheet or a film, and is bent between the pusher 3A and the driver 6 into an arbitrary shape. Further, the length of the pusher band 9 from the tip to the first locking hole 90 is such that the abutting convex part 33a of the band retaining part 33 of the pusher 3A and the locking convex part 32a of the band locking part 32. It is comprised to the same extent as the length between. The first locking hole portion 90 is formed in a long hole shape into which the retaining prevention convex portion 32b protruding from the band locking portion 32 of the pusher 3A can be inserted.

  The pusher band 9 is configured such that the length from the rear end to the second locking hole portion 91 is approximately the same as the length between the band locking portion 62 of the driver 6 and the band retaining portion 63. The second locking hole portion 91 has a shape in which a locking piece portion 62 a protruding from the band locking portion 62 of the driver 6 can be inserted.

<Example of assembly process of magazine assembly according to first embodiment>
Next, with reference to each figure, the assembly process of the magazine assembly 11A of 1st Embodiment is demonstrated.

  First, the pusher 3A is attached to the pusher guide 51A of the guide member 5A. The pusher 3A is movable along the spring guide 50A and the pusher guide 51A by inserting the guide groove 31 into the guide convex portion 54 of the pusher guide 51A and inserting the spring pressing portion 30b into the spring guide 50A of the guide member 5A. Attached to.

  Next, the pusher spring 4 is attached to the spring guide 50A of the guide member 5A. The pusher spring 4 is inserted into the spring guide 50A in which the spring pressing portion 30b of the pusher 3A is inserted, so that the tip side along the axial direction of the coil is in contact with the pusher 3A.

  The guide member 5A to which the pusher 3A and the pusher spring 4 are attached is attached to the magazine 2A. First, in the guide member 5A, the second shaft portion 53b of the spring guide 50A is inserted into the second support portion 26b of the magazine 2A. Next, while compressing the pusher spring 4, the guide member 5A is retracted, and the first shaft portion 53a is aligned with the first support portion 26a of the magazine 2A.

  And the 1st axial part 53a is inserted in the 1st support part 26a of the magazine 2A by advancing the guide member 5A. Thus, the guide member 5A has the first shaft portion 53a supported by the first support portion 26a of the magazine 2A on the front end side, and the second shaft portion 53b of the guide member 5A on the second support portion of the magazine 2A. 26b.

  In a configuration that uses a tension coil spring for the spring that presses the pusher, it is usually necessary to hook the hook at one end of the spring to the pusher and hook the hook at the other end of the spring to the guide side while pulling the spring. Take the trouble.

  On the other hand, in the magazine assembly 11A of the first embodiment, the pusher spring 4 may be inserted into the spring guide 50A in the step of attaching the pusher spring 4 to the guide member 5A, compared with a configuration using a tension coil spring. This saves time and effort for assembly.

  In addition, the process of attaching the guide member 5A to the magazine 2A can be performed in the same process as the conventional stapler for attaching the shaft-shaped spring guide to the support portion of the magazine, and the guide in which the spring guide 50A and the pusher guide 51A are integrally formed. Even with the member 5A, it is possible to perform the same work as before without increasing the time and effort required for attachment to the magazine 2A.

<Example of effects of the magazine assembly according to the first embodiment>
In the magazine assembly 11A assembled as described above, the shaft hole portion 84a of the lower handle 8 and the hole portion 25 of the magazine 2A are aligned, and the shaft 81 is inserted and caulked through each hole.

  When the shaft 81 is inserted into the hole 25 of the magazine 2 </ b> A, the stepped portion 55 b of the guide member 5 </ b> A enters the lower side of the shaft 81 and the shaft contact portion 55 a contacts the shaft 81. Thereby, the rear end side of the guide member 5A is fixed to the magazine 2A.

  In the magazine assembly 11A in which the guide member 5A is attached to the magazine 2A, the spring guide 50A passes through the substantially center line of the magazine 2A, and the pusher guide 51A is provided integrally with the spring guide 50A on both the left and right sides of the spring guide 50A and the pusher spring 4. .

  The height of the pusher guide 51A is about the same as that of the spring guide 50A and is lower than the length of the needle foot 10b of the staple 10. Further, a space wider than the line thickness of the staple 10 is formed between the pusher guide 51A and the magazine side wall 20b. Further, a space equivalent to or larger than the line width of the staple 10 is formed between the tip of the pusher guide 51A and the magazine front wall 20c.

  The stapler 1A opens the upper handle 7 with the shaft 81 serving as a fulcrum, and the pusher 3A is pulled and retracted while the pusher spring 4 is compressed by the pusher band 9, and the staple 10 is placed between the pusher 3A and the magazine front wall 20c. A space in which can be loaded is formed.

  In the configuration using a compression coil spring as the pusher spring 4, the pusher spring 4 is compressed by retracting the pusher 3A, so that the pusher spring 4 is not exposed in the space in which the staples 10 are loaded in the magazine 2A. The spring guide 50A exposed to the space in the magazine 2A where the staples 10 are loaded is provided with pusher guides 51A on both sides.

  Thereby, in the operation of loading or unloading the staple 10 to or from the magazine 2A, the needle foot 10b of the staple 10 is guided in the space between the pusher guide 51A and the magazine side wall 20b, and the staple 10 is spring guide 50A or the pusher spring 4 or the like. It is prevented from being caught on.

  Further, the stapler 1A opens the upper handle 7 with the shaft 81 as a fulcrum, and when the pusher 3A is pulled by the pusher band 9, in addition to the force that moves the pusher 3A along the pusher guide 51A, the pusher 3A is pushed. A force in the direction of lifting from the guide 51A is applied.

  The pusher 3A is prevented from coming out of the pusher guide 51A even when a force in the direction of lifting the pusher 3A from the pusher guide 51A is applied by fitting the guide groove 31 into the guide convex portion 54 of the pusher guide 51A.

  Further, the pusher guide 51A is fixed to the magazine 2A at the front end side by the first shaft portion 53a formed integrally with the first connecting portion 52a being supported by the first support portion 26A of the magazine 2A. The Furthermore, as described above, the stepped portion 55b of the pusher guide 51A enters the lower side of the shaft 81, and the rear end side is fixed to the magazine 2A when the shaft contact portion 55a contacts the shaft 81.

  This prevents the guide member 5A having the pusher guide 51A from being detached from the magazine 2A and prevents the pusher guide 51A from being greatly deformed even when a force in the direction of lifting the pusher 3A from the pusher guide 51A is applied. Is done.

  Further, a space equal to or larger than the line width of the staple 10 is formed between the tip of the pusher guide 51A and the magazine front wall 20c, so that the staple 10 separated into one is tilted backward. It is prevented.

  In general, in a small stapler loaded with staples having a short needle foot, staples are supported by the bottom surface of the magazine, and the guide is not required to be strong because the staple guide is provided on the magazine. On the other hand, in a stapler of a medium size or larger in which both staples having a long needle foot and staples having a short needle foot can be loaded, the staple crown of the staple is often supported by a guide. For this reason, strength is required for the guide.

  In the stapler 1A of the first embodiment, the staple 10 is supported by the magazine bottom surface 20a, and a strong force is not applied to the guide member 5A when driven by the driver 6. For this reason, the guide member 5A is made of a resin material such as plastic, and the spring guide 50A and the pusher guide 51A can be integrally molded.

<Example of Pusher Band Attaching Process of First Embodiment>
FIG. 14 is a perspective view showing an example of a process for attaching the pusher band to the pusher according to the first embodiment, and FIG. 15 is a side showing an example of the process for attaching the pusher band to the pusher according to the first embodiment. Next, a process of attaching the pusher band 9 of the first embodiment to the pusher 3A will be described with reference to the drawings.

  When the upper handle 7 is opened with the magazine assembly 11A assembled as described above, the lower handle 8 and the upper handle 7 attached with the driver 6 assembled together via the shaft 81, FIG. As shown in a), the band locking part 32 and the band retaining part 33 of the pusher 3A, and the band locking part 62 and the band retaining part 63 of the driver 6 are exposed.

  The pusher band 9 is attached to the pusher 3A when the direction indicated by the arrow F1 in FIG. 11A is the front side on the pusher 3A side, the pusher band 9 is longer than the band locking portion 32 of the pusher 3A. The position is adjusted in a state where the hole-shaped first locking hole 90 is shifted forward. Then, as shown in FIGS. 14A and 15A, the first locking hole 90 of the pusher band 9 is inserted into the band locking portion 32 of the pusher 3A. In this state, the front end side of the pusher band 9 is in a state of riding on the band retaining portion 33 of the pusher 3A.

  Next, as shown in FIGS. 14B and 15B, the pusher band 9 is pulled backward. When the pusher band 9 is pulled rearward, the first locking hole portion 90 having a long hole shape moves rearward with respect to the band locking portion 32 of the pusher 3A, and the locking protrusion of the band locking portion 32 is moved. The tip of the first locking hole 90 is abutted against the portion 32a. Further, the edge portion on the front end side of the first locking hole 90 is pressed by the retaining prevention convex portion 32 b of the band locking portion 32.

  Next, as shown in FIGS. 14C and 15C, the tip of the pusher band 9 is pushed into the band retaining portion 33 while the pusher band 9 is pulled backward. When the tip of the pusher band 9 is pushed into the band retaining portion 33, the tip of the pusher band 9 gets over the retaining projection 33b of the band retaining portion 33 and the tip of the pusher band 9 contacts the abutting convex portion 33a of the band retaining portion 33. It is hit.

  FIG. 16 is a perspective view showing an example of a process for attaching the pusher band of the first embodiment to the driver, and FIG. 17 is a broken view showing an example of the process of attaching the pusher band of the first embodiment to the driver. Next, a process of attaching the pusher band 9 of the first embodiment to the driver 6 will be described with reference to the respective drawings.

  The pusher band 9 is attached to the driver 6 with respect to the band locking portion 62 of the driver 6 when the direction indicated by the arrow F2 in FIG. The position is adjusted in a state where the two locking holes 91 are shifted forward. Then, as shown in FIGS. 16A and 17A, the second locking hole 91 of the pusher band 9 is inserted into the band locking portion 62 of the driver 6. In this state, the rear end side of the pusher band 9 is in a state of riding on the band removal preventing portion 63 of the driver 6.

  Next, as shown in FIGS. 16B and 17B, the pusher band 9 is pulled backward while pushing the pusher band 9 toward the hole 64 of the driver 6. When the pusher band 9 is pulled rearward, the second locking hole portion 91 moves rearward with respect to the band locking portion 62 of the driver 6, and the second locking hole portion 91 is moved to the band locking portion. 62 is abutted against a portion formed by a flat surface or a curved surface of the root portion of the locking piece portion 62a. Further, the edge portion of the second locking hole portion 91 is pressed by the locking piece portion 62 a of the band locking portion 62.

  Further, the rear end of the pusher band 9 gets over the band retaining portion 63, and the rear end of the pusher band 9 is abutted against the band retaining portion 63.

<Example of Operation of Pusher Retraction Mechanism of First Embodiment>
Next, the operation of the pusher retracting mechanism of the first embodiment in which the pusher band 9 and the driver 6 on the upper handle 7 side are connected by the pusher band 9 as described above will be described with reference to each drawing.

  In the operation of opening the upper handle 7 with the shaft 81 as a fulcrum, a force in the direction in which the pusher 3A is pulled by the pusher band 9 is applied, and the pusher 3A is engaged with the locking protrusion 32a of the band locking portion 32 and One locking hole 90 is pressed. Further, the driver 6 is pressed against the band locking portion 62 by the second locking hole portion 91 of the pusher band 9.

  Accordingly, the pusher band 9 is pulled by receiving the force at the second locking hole 91 by the band locking portion 62 provided in the driver 6 by the operation of opening the upper handle 7. Further, the pusher 3 </ b> A is pulled by the locking projection 32 a of the band locking portion 32 receiving a force from the first locking hole 90 of the pusher band 9.

  In the operation of closing the upper handle 7 with the shaft 81 as a fulcrum, the pusher 3A is pressed by the pusher spring 4 to apply a force to pull the pusher band 9 with the pusher 3A, and the pusher band 9 has a band locking portion 32 of the pusher 3A. The first locking hole 90 is pulled by receiving the force by the locking projection 32a. Further, the upper handle 7 is pulled by the band locking portion 62 provided on the driver 6 by receiving a force from the second locking hole portion 91 of the pusher band 9.

  When the staple 10 is loaded in the magazine 2A, when the pusher 3A advances to a position where the pressing portion 30a of the pusher 3A contacts the staple 10, the tip of the staple 10 is pressed against the magazine front wall 20c, and the movement of the pusher 3A is stopped. To do.

  If the upper handle 7 is further closed while the movement of the pusher 3A is stopped, the pusher band 9 applies a force to push the pusher 3A forward. In the state where the movement of the pusher 3 </ b> A is stopped, when the pusher band 9 applies a force to push the pusher 3 </ b> A forward, the tip of the pusher band 9 is pressed against the abutting convex part 33 a of the band retaining part 33.

  As a result, the movement of the pusher band 9 is restricted to prevent the pusher band 9 from coming off from the pusher 3A, and the pusher band 9 is bent by the operation of closing the upper handle 7. When the upper handle 7 is further closed by bending the pusher band 9, a force that pushes the pusher band 9 forward is also applied on the driver 6 side, and the rear end of the pusher band 9 is placed on the band retaining portion 63 of the driver 6. Pressed. Thereby, the movement of the pusher band 9 is restricted, and the detachment from the driver 6 is prevented.

<Example of the effect of the pusher retracting mechanism of the first embodiment>
The length of the pusher band 9 from the tip to the first locking hole 90 is between the abutting convex part 33a of the band retaining part 33 of the pusher 3A and the locking convex part 32a of the band locking part 32. It is comprised to the same extent as the length between.

  As a result, when the pusher band 9 is attached to the pusher 3A, the tip of the pusher band 9 is abutted against the abutting convex part 33a of the band retaining part 33, and at the retaining convex part 32a of the band engaging part 32. The first locking hole 90 is held in a state in which the tip is abutted against it. Further, the edge portion on the front end side of the first locking hole 90 is pressed by the retaining prevention convex portion 32 b of the band locking portion 32.

  Accordingly, the movement of opening and closing the upper handle 7 and the movement of the pusher 3A prevent the pusher band 9 from moving in the direction in which the pusher band 9 is detached from the pusher 3A, and prevents the pusher band 9 from being detached from the pusher 3A. Is done. Further, the tip of the pusher band 9 is pressed by the retaining prevention convex portion 33 b of the band retaining portion 33, so that the tip of the pusher band 9 is prevented from coming off from the band retaining portion 33.

  As described above, the pusher band 9 is attached to the pusher 3A by inserting the first locking hole 90 of the pusher band 9 into the band locking portion 32 of the pusher 3A, and as shown by the arrow a1 in FIG. The operation is performed by pulling the band 9 and pushing the tip of the pusher band 9 as indicated by an arrow a2.

  As a result, the pusher band 9 can be attached to the pusher 3A by pressing and pulling the pusher band 9 from one surface side with respect to the pusher 3A, which is one attachment portion of the pusher band 9, and the work is easy. It is possible to automate the work.

  The pusher band 9 has a length from the rear end to the second locking hole 91 that is about the same as the length between the band locking portion 62 of the driver 6 and the band retaining portion 63, and at least the pusher band 9. In a state where the rear end of the band 9 is abutted against the band retaining portion 63, the length is such that the locking piece 62 a of the band locking portion 62 does not come out of the second locking hole 91. .

  Thereby, when the pusher band 9 is attached to the driver 6, the second locking hole portion 91 of the pusher band 9 is abutted against the step portion of the band locking portion 62, and the second locking hole portion 91 is The edge is pressed by the locking piece 62 a of the band locking portion 62. Further, even if the pusher band 9 moves back and forth, the rear end of the pusher band 9 in a state where the edge of the second locking hole 91 is pressed by the locking piece 62 a of the band locking portion 62. Is abutted against the band retaining portion 63.

  Therefore, the movement of opening / closing the upper handle 7 and the movement of the pusher 3 </ b> A prevent the pusher band 9 from moving away from the driver 6, and prevent the pusher band 9 from coming off the driver 6. Is done.

  As described above, the pusher band 9 is attached to the driver 6 by inserting the second locking hole portion 91 of the pusher band 9 into the band locking portion 62 of the driver 6 and pressing the pusher as shown by the arrow b1 in FIG. The operation is performed by pulling the band 9 and pushing the rear end of the pusher band 9 as indicated by an arrow b2.

  Thereby, the pusher band 9 can be attached to the driver 6 by the operation of pressing and pulling the pusher band 9 from one surface side with respect to the driver 6 which is the other attachment portion of the pusher band 9, and the work is easy. It is possible to automate the work. In the present embodiment, the pusher band 9 is attached with an equivalent attachment structure in the pusher 3A and the driver 6 on the upper handle 7 side, but different attachment structures may be used. In addition, the band locking portion 62 and the band retaining portion 63 are configured to have a step with respect to the surface of the driver 6, but a space in which the pusher band 9 can be inserted is secured between the driver 6 and the upper handle 7. If possible, a configuration with the same plane is also possible.

<Modification of Pusher Retraction Mechanism of First Embodiment>
Next, the configuration of the driver and the pusher band that constitute the pusher retracting mechanism according to a modification of the first embodiment will be described.

  Here, FIG. 18 shows a modified example of the main part configuration of the driver, which is a part to which the pusher band is locked, and FIG. 18A shows a modified example of the main part configuration of the driver of the first embodiment. FIG. 18B is a side sectional view showing a modification of the main configuration of the driver according to the first embodiment.

  The driver 6 includes a band locking portion 62 that locks the pusher band 9 and a band retaining portion 63 that prevents the pusher band 9 locked to the band locking portion 62 from being detached from the driver 6.

  The band locking portion 62 protrudes into the hole 64 that penetrates the driver 6, and is inserted into the locking piece 62a into which the second locking hole 91 of the pusher band 9 is inserted, and the locking piece 62a. A receiving portion 62b against which the second locking hole portion 91 of the pusher band 9 is abutted is provided.

  The locking piece 62 a is provided with a step with respect to the driver 6 at a height equivalent to the plate thickness of the driver 6, and protrudes from the surface of the driver 6. The receiving portion 62 b is configured by one side of the hole portion 64 on the rear end side of the locking piece portion 62 a protruding from the hole portion 64.

  The band retaining portion 63 is constituted by the other side of the hole portion 64, and is provided with a step with respect to the driver 6 at a height approximately equal to the plate thickness of the driver 6. Protrudes from the surface.

  The pusher band 9 is attached to the driver 6 in the modified example, and the pusher band 9 is aligned with the band locking portion 62 of the driver 6 with the second locking hole portion 91 shifted forward. . Then, the second locking hole portion 91 of the pusher band 9 is inserted into the band locking portion 62 of the driver 6. In this state, the rear end side of the pusher band 9 is in a state of riding on the band removal preventing portion 63 of the driver 6.

  Next, the pusher band 9 is pulled backward while pushing the pusher band 9 toward the hole 64 of the driver 6. When the pusher band 9 is pulled rearward, the second locking hole portion 91 moves rearward with respect to the band locking portion 62 of the driver 6, and the second locking hole portion 91 is moved to the receiving portion 62 b of the band locking portion 62. The locking hole 91 is abutted. Further, the edge portion of the second locking hole portion 91 is pressed by the locking piece portion 62 a of the band locking portion 62.

  Further, the rear end of the pusher band 9 gets over the band retaining portion 63, and the rear end of the pusher band 9 is abutted against the band retaining portion 63.

  In the operation of opening the upper handle 7 with the shaft 81 as a fulcrum, the second locking hole portion 91 of the pusher band 9 is pressed against the receiving portion 62b of the band locking portion 62 on the driver 6 side.

  As a result, the pusher band 9 is pulled by receiving the force in the vicinity of the center of the second locking hole portion 91 by the receiving portion 62b of the band locking portion 62 provided in the driver 6 by the operation of opening the upper handle 7. .

  In the operation of closing the upper handle 7 with the shaft 81 as a fulcrum, as described above, the pusher 3A is pressed by the pusher spring 4, so that on the upper handle 7 side, the receiving portion 62b of the band locking portion 62 provided in the driver 6 is provided. However, the force is pulled by the second locking hole 91 of the pusher band 9.

  When the staple 10 is loaded in the magazine 2A, as described above, the pusher 3A advances to a position where the pressing portion 30a of the pusher 3A comes into contact with the staple 10 and the movement of the pusher 3A is stopped. When the button is further closed, the pusher band 9 is bent.

  When the upper handle 7 is further closed by bending the pusher band 9, a force that pushes the pusher band 9 forward is applied on the driver 6 side, and the rear end of the pusher band 9 is attached to the band retaining portion 63 of the driver 6. Pressed. Thereby, the movement of the pusher band 9 is restricted, and the detachment from the driver 6 is prevented.

  In the pusher retracting mechanism of the modified example of the first embodiment, the second locking hole portion of the pusher band 9 is received by receiving a force at the receiving portion 62b of the band locking portion 62 near the center portion of the driver 6. Compared with the first embodiment, 91 and the driver 6 are in contact with each other on a plane having a relatively large area. Thereby, the load applied to the pusher band 9 can be reduced.

  Next, the configuration of the pusher that constitutes the pusher retracting mechanism according to a modification of the first embodiment will be described. Here, FIG. 19 shows a modification of the pusher and the pusher band of the first embodiment, and FIG. 19A is a plan view showing a modification of the pusher and the pusher band of the first embodiment. FIG. 19B is a side sectional view showing a modification of the pusher and the pusher band according to the first embodiment.

  The pusher 3A of the modified example includes a band locking portion 32 to which the pusher band 9 is locked, and a band retaining portion 33 that prevents the pusher band 9 locked to the band locking portion 32 from being detached from the pusher 3A. In addition, a guide projection 34 for guiding the attachment of the pusher band 9 is provided.

  The guide convex portion 34 protrudes from the upper surface of the pusher 3A behind the band locking portion 32, and the guide hole portion 92 of the pusher band 9 is inserted therein. By aligning the guide projection 34 of the pusher 3A and the guide hole 92 of the pusher band 9, the assembly of the pusher 3A and the pusher band 9 can be performed more reliably when assembling with an automatic machine or the like. .

<Configuration example of stapler according to the second embodiment>
FIG. 20 is an exploded perspective view illustrating an example of a stapler according to the second embodiment. In the stapler 1B of the second embodiment, the spring guide 50B constituting the guide member 5B has a cantilever structure, and the shape of the magazine 2B is simplified.

  The overall configuration of the stapler 1B of the second embodiment is the same as that of the stapler 1A of the first embodiment. The magazine 2B is loaded with staples 10 and the pusher 3B is configured to press the staples 10 loaded in the magazine 2B. And a pusher spring 4 for pressing the pusher 3B.

  The stapler 1B also includes a spring guide 50B that guides the pusher spring 4 and a guide member 5B that guides the movement of the pusher 3B and a pusher guide 51B that guides the loading and unloading of the staples 10 by integral molding. Further, the stapler 1B includes a driver 6 that separates and drives the staples 10 loaded in the magazine 2B into one, and an upper handle 7 on which the driver 6 is provided.

  The stapler 1B is provided with a clincher 80 that bends the needle foot 10b of the staple 10 penetrating the paper, and includes a lower handle 8 on which the magazine 2B and the upper handle 7 are rotatably supported by a shaft 81. Further, the stapler 1B includes a pusher band 9 that transmits an operation of opening the upper handle 7 to the pusher 3B to retract the pusher 3B.

  In the stapler 1B, the pusher spring 4 is attached to the spring guide 50B, and a guide member 5B in which the pusher 3B is attached to the pusher guide 51B is attached to the inside of the magazine 2B to constitute the magazine assembly 11B.

  The magazine assembly 11B is rotatably attached to the lower handle 8 by a shaft 81. The upper handle 7 is rotatably attached to the lower handle 8 and the magazine assembly 11B by a shaft 81.

  In the stapler 1B, the driver 6 is attached to the upper handle 7, and the sheet P is sandwiched between the magazine 2B and the clincher 80 of the lower handle 8 by the operation of grasping the upper handle 7 and the lower handle 8, and the driver 6 One staple 10 is ejected from the magazine 2B.

  One staple 10 driven out from the magazine 2B passes through the paper P sandwiched between the magazine 2B and the clincher 80 of the lower handle 8, and is folded by the clincher 80, whereby the paper P is bound.

  Further, in the stapler 1B, the pusher 3B and the driver 6 on the upper handle 7 side are connected by the pusher band 9, and the upper handle 7 is opened with the shaft 81 as a fulcrum. The staple 10 is pulled and retracted, and the staple 10 can be loaded into the magazine 2B of the magazine assembly 11B.

  The magazine assembly 11B is provided with pusher guides 51B on the left and right sides of the spring guide 50B and the pusher spring 4, and prevents the staple 10 from being caught by the spring guide 50B or the pusher spring 4 or the like when the staple 10 is loaded into or removed from the magazine 2B. Is done.

  The stapler 1B closes the upper handle 7 with the shaft 81 as a fulcrum, and the pusher 3B is pressed by the restoring force of the pusher spring 4, and the staple 10 loaded in the magazine 2B is pressed.

<Configuration Example of Magazine Assembly of Second Embodiment>
FIGS. 21-24 show an example of the magazine assembly which comprises the stapler of 2nd Embodiment, Next, the magazine 2B which comprises the magazine assembly 11B of 2nd Embodiment is demonstrated.

  Here, FIG. 21 is a plan view showing an example of the magazine assembly of the second embodiment, and FIG. 22 is a side view showing an example of the magazine assembly of the second embodiment. FIG. 23 is a side sectional view showing an example of the magazine assembly of the second embodiment, and FIG. 24 is a front sectional view of an example of the magazine assembly of the second embodiment.

  The magazine 2B is formed in a predetermined shape by bending a plate-shaped metal material by punching or bending such as a press, and includes a magazine bottom surface 20a on which the staples 10 are placed. Further, the magazine 2B includes a magazine side wall 20b that regulates the position in the width direction along the needle crown 10a of the staple 10, and a magazine front wall 20c that regulates the position in the front-rear direction along the line width direction of the staple 10.

  Further, the magazine 2B includes a staple cover 20d that regulates the vertical position of the staple 10 along the needle foot 10b. In addition, the magazine 2B is provided with an opening 20e at a front end side of the magazine bottom surface 20a and below the magazine front wall 20c so as to pass the staple 10 separated into one.

  The magazine 2B includes a locking projection 21 that holds the upper handle 7 in the closed position. The locking projection 21 protrudes outward from the opposing magazine side wall 20b, and the locking projection 72 of the upper handle 7 is locked.

  Further, the magazine 2B includes a locking recess 22 for holding the lower handle 8 in the closed position and holding the guide member 5B. The locking recess 22 is configured by providing an opening in the opposite magazine side wall 20b, and the locking protrusion 84b of the lower handle 8 and the guide member 5B are locked.

  Further, the magazine 2 </ b> B includes an opening 23 that adjusts a load applied to the upper handle 7 by an operation of locking the upper handle 7 to the locking projection 21. The opening 23 is configured by providing an opening in the opposing magazine side wall 20b so that the portion of the magazine side wall 20b where the locking projection 21 is provided is deformed by a desired load. In this example, the locking recess 22 and the opening 23 are integrally formed.

  The magazine 2 </ b> B includes a confirmation window unit 24 that allows confirmation of the presence / absence of the staple 10 and the remaining number. The confirmation window portion 24 is configured by providing a slot-shaped opening in the present example on the leading end side of the opposing magazine side wall 20b so that the staple 10 loaded in the magazine 2B can be seen.

  The magazine 2B includes a hole 25 into which the shaft 81 is inserted. The hole 25 is configured by providing a circular through hole matching the diameter of the shaft 81 on the rear end side of the opposing magazine side wall 20b.

  The magazine 2B includes a support portion 27 that supports the guide member 5B. The support portion 27a is configured to stand from the magazine bottom surface 20a on the front end side of the magazine 2B.

  FIGS. 25 to 28 show an example of the guide member of the second embodiment. Next, the guide member 5B constituting the magazine assembly 11B of the second embodiment will be described. Here, FIG. 25 is a plan view showing an example of a guide member constituting the magazine assembly of the second embodiment, and FIG. 26 is an example of a guide member constituting the magazine assembly of the second embodiment. FIG.

  FIG. 27 is a side sectional view showing an example of a guide member constituting the magazine assembly of the second embodiment, and FIG. 28 is an example of a guide member constituting the magazine assembly of the second embodiment. FIG.

  The guide member 5B is made of a resin material such as plastic, and pusher guides 51B are provided on both left and right sides of the spring guide 50B. The spring guide 50B and the pusher guide 51B extend along the longitudinal direction of the magazine 2B.

  The guide member 5B has a pair of pusher guides 51B arranged in parallel at an interval slightly shorter than the inner width of the needle crown 10a of the staple 10, and the rear end side of the spring guide 50B and the pusher guide 51B is supported by the bearing portion 56 supported by the shaft 81. Connected together. The bearing portion 56 is formed with a hole portion 56a into which the shaft 81 is inserted. In addition, the bearing portion 56 is formed with a locking projection 56b inserted into the locking recess 22 of the magazine 2B so as to protrude from the side.

  The guide member 5B is integrally connected to the distal end side of the pusher guide 51B by a connecting portion 57 having a shape connecting the left and right pusher guides 51B. The connecting portion 57 has a shape that is locked to the support portion 27 of the magazine 2B.

  The spring guide 50B receives a compressive load and has a cylindrical shape, a prismatic shape, or the like into which a pusher spring 4 composed of a compression coil spring that is stretched by a restoring force against elastic deformation due to compression can be inserted, and a rear end side is supported by a bearing portion 56. Is done.

  The pusher guide 51B includes a guide recess 58 to which the pusher 3B is attached. The guide recess 58 is configured by providing a groove extending in the height direction in a part of the pusher guide 51B.

  Next, the configuration of the pusher 3B will be described. The pusher 3B includes a pressing portion 30a that presses the staple 10, a spring pressing portion 30b that is pressed by the pusher spring 4, and a guide groove that is guided by the pusher guide 51B of the guide member 5B. 35.

  In addition, the pusher 3B includes a band locking portion 32 to which the pusher band 9 is locked, and a band retaining portion 33 that prevents the pusher band 9 locked to the band locking portion 32 from coming off the pusher 3B. .

  The pressing portion 30a is configured to protrude forward from both the left and right sides of the distal end side of the pusher 3B, and presses the two needle feet 10b of the staple 10. The spring pressing portion 30b is configured by providing a hole that is inserted between the pair of pusher guides 51B and inserted into the spring guide 50B inside the pusher 3B that covers the pusher guide 51B.

  The guide groove 35 is configured to fit into the pusher guide 51B inside the pusher 3B that covers the pusher guide 51B, and to provide a concave groove along the moving direction of the pusher 3B. The pusher 3B is provided with a groove portion (not shown) that matches the shape of the guide concave portion 58 provided in the pusher guide 51B at the lower portion of the guide groove 35, and can be inserted into the pusher guide 51B from above at the position of the guide concave portion 58. The

  The band locking portion 32 protrudes from the upper surface of the pusher 3B, protrudes forward from the locking protrusion 32a into which the first locking hole 90 of the pusher band 9 is inserted, and the upper end of the locking protrusion 32a. The first locking hole 90 of the band 9 is provided with a retaining prevention protrusion 32b that prevents the band 9 from coming off from the locking protrusion 32a.

  The band retaining portion 33 protrudes from the upper surface of the pusher 3B in front of the band locking portion 32, protrudes rearward from the abutting convex portion 33a against which the pusher band 9 is abutted, and the upper end of the abutting convex portion 33a. 9 is provided with a retaining prevention convex portion 33b for preventing the tip of 9 from coming off the abutting convex portion 33a.

<Assembly Process Example of Magazine Assembly of Second Embodiment>
Next, with reference to each figure, the assembly process of the magazine assembly 11B of 2nd Embodiment is demonstrated.

  First, the pusher spring 4 is attached to the spring guide 50B of the guide member 5B. Next, the pusher 3B is attached to the pusher guide 51B of the guide member 5B. The pusher 3B bends the tip end side of the spring guide 50B upward so that the spring pressing portion 30b is inserted into the spring guide 50B in which the pusher spring 4 is inserted, and the guide groove is aligned with the guide recess 58 of the pusher guide 51B. 35 is inserted into the pusher guide 51B from above.

  Accordingly, the pusher 3B is attached so as to be movable along the spring guide 50B and the pusher guide 51B. Further, the pusher spring 4 is in contact with the pusher 3B at the tip end side along the axial direction of the coil.

  The guide member 5B to which the pusher 3B and the pusher spring 4 are attached is attached to the magazine 2B. First, in the guide member 5B, the connecting portion 57 on the distal end side is locked to the support portion 27 of the magazine 2B. Next, in the guide member 5, the rear end bearing portion 56 is inserted between the magazine side walls 20b of the magazine 2B, and the locking projection 56b of the bearing portion 56 is inserted into the locking recess 22 of the magazine 2B. Locked.

  Thereby, as for the guide member 5B, the connection part 57 is supported by the support part 27 of the magazine 2B at the front end side, and the latching convex part 56b is supported by the latching recessed part 22 of the magazine 2B at the rear end side. Even in the magazine assembly 11B of the second embodiment, in the process of attaching the pusher spring 4 to the guide member 5B, the pusher spring 4 may be inserted into the spring guide 50B. Compared to a configuration using a tension coil spring, the effort required for assembly is reduced. Can be omitted.

<Example of effects of the magazine assembly according to the second embodiment>
In the magazine assembly 11B assembled as described above, the shaft hole 84a of the lower handle 8 and the hole 25 of the magazine 2B are aligned, and the shaft 81 is inserted and caulked through each hole.

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

  In the magazine assembly 11B in which the guide member 5B is attached to the magazine 2B, the spring guide 50B passes through the substantially center line of the magazine 2B, and the pusher guide 51B is provided integrally with the spring guide 50B on both the left and right sides of the spring guide 50B and the pusher spring 4. .

  The height of the pusher guide 51B is approximately the same as that of the spring guide 50B and is lower than the length of the needle foot 10b of the staple 10. Further, a space wider than the line thickness of the staple 10 is formed between the pusher guide 51B and the magazine side wall 20b. Further, a space equivalent to or larger than the line width of the staple 10 is formed between the tip of the pusher guide 51B and the magazine front wall 20c.

  The stapler 1B opens the upper handle 7 with the shaft 81 as a fulcrum, and the pusher 3B is pulled and retracted while compressing the pusher spring 4 by the pusher band 9, and the staple 10 is moved between the pusher 3B and the magazine front wall 20c. A loadable space is formed.

  In the configuration using a compression coil spring as the pusher spring 4, the pusher spring 4 is compressed by retracting the pusher 3B, so that the pusher spring 4 is not exposed to the space in the magazine 2B where the staples 10 are loaded. Further, the spring guide 50B exposed to the space in the magazine 2B where the staples 10 are loaded is provided with pusher guides 51B on both sides.

  As a result, the staple foot 10b of the staple 10 is guided in the space between the pusher guide 51B and the magazine side wall 20b by the operation of loading or unloading the staple 10 with respect to the magazine 2B, and the staple 10 is spring guide 50B or pusher spring 4 or the like. It is prevented from being caught on.

  The stapler 1B opens the upper handle 7 with the shaft 81 as a fulcrum. When the pusher 3B is pulled by the pusher band 9, the stapler 1B pushes the pusher 3B in addition to the force for moving the pusher 3B along the pusher guide 51B. A force in the direction of lifting from the guide 51B is applied.

  By pushing the guide groove 35 into the pusher guide 51B, the pusher 3B is prevented from being detached from the pusher guide 51B even when a force in the direction of lifting the pusher 3B from the pusher guide 51B is applied.

  Further, the pusher guide 51B is fixed to the magazine 2B at the distal end side by the connecting portion 57 being supported by the support portion 27 of the magazine 2B. Further, the shaft 81 is inserted into the bearing portion 56 of the guide member 5B, whereby the rear end side is fixed to the magazine 2B.

  This prevents the guide member 5B having the pusher guide 51B from being detached from the magazine 2B and prevents the pusher guide 51B from being greatly deformed even when a force in the direction of lifting the pusher 3B from the pusher guide 51B is applied. Is done.

  The present invention is applied to a stapler provided at a low price.

  1A, 1B ... Stapler, 10 ... Staple, 10a ... Needle crown, 10b ... Needle foot, 11A, 11B ... Magazine assembly, 2A, 2B ... Magazine, 20a ... Magazine bottom surface, 20b ... magazine side wall, 20c ... magazine front wall, 20d ... staple cover, 20e ... opening, 21 ... locking projection, 22 ... locking recess, 23 ... Opening part, 24 ... Confirmation window part, 25 ... Hole part, 26a ... First support part, 26b ... Second support part, 27 ... Support part, 3A, 3B: Pusher, 30a: Pressing part, 30b: Spring pressing part, 31 ... Guide groove, 32 ... Band locking part, 32a ... Locking convex part, 32b ... Retaining prevention convex part, 33 ... Band retaining part, 33a ... Abutting convex part, 3b: Retaining prevention convex part, 34 ... Guide convex part, 35 ... Guide groove, 4 ... Pusher spring, 5A, 5B ... Guide member, 50A, 50B ... Spring guide, 51A, 51B: Pusher guide, 52a: First connecting portion, 52b: Second connecting portion, 53a: First shaft portion, 53b: Second shaft portion, 54. Guide convex part, 55a ... Abutting part, 55b ... Step part, 56 ... Bearing part, 56a ... Hole part, 56b ... Locking convex part, 57 ... Connecting part, 58 ... Guide recess, 6 ... Driver, 60 ... Driver part, 61a ... Magazine return spring, 61b ... Lower handle return spring, 62 ... Band locking part, 62a ... Locking piece part, 62b ... receiving part, 63 ... band retaining part, 64 ... Part, 7 ... upper handle, 70 ... main body, 71a, 71b ... cover, 72 ... locking convex part, 8 ... lower handle, 80 ... clincher, 81 ... Shaft, 82 ... body part, 83 ... cover, 84 ... side wall part, 84a ... shaft hole part, 84b ... locking convex part, 9 ... pusher band, 90 ... First locking hole 91, second locking hole 92, guide hole

Claims (8)

A magazine loaded with staples,
A pusher for pressing staples loaded in the magazine;
A pusher spring for pressing the pusher;
A driver for separating and driving staples loaded in the magazine into one;
An upper handle provided with the driver;
A lower clincher provided with a clincher for bending the staple foot of the staple penetrating the paper, and the magazine and the upper handle being rotatably supported;
A pusher band that transmits the operation of opening the upper handle to the pusher and retracts the pusher;
Either the pusher or the upper handle, or the pusher and the upper handle, a band engagement in which a locking hole provided on an end side of the pusher band is inserted to lock the pusher band. A stop portion and an end portion of a pusher band locked to the band locking portion are abutted against each other, and a band retaining portion for preventing the pusher band from coming off from the band locking portion is provided. Stapler to do. The band locking portion of the pusher is
A locking projection that protrudes from the upper surface of the pusher and into which the locking hole provided on one end side of the pusher band is inserted,
The stapler according to claim 1, further comprising an anti-detachment protrusion protruding forward from an upper end of the locking protrusion. The band retaining portion of the pusher is
Projecting to the upper surface of the pusher in front of the band locking part, and an abutting convex part against which an end of the pusher band is abutted;
The stapler according to claim 1 or 2, further comprising a retaining prevention convex portion that projects rearward from an upper end of the abutting convex portion. The pusher band has a length from the tip on one end side to the locking hole on one end side of the band stopper portion of the pusher and the band locking portion of the pusher. The stapler according to any one of claims 1 to 3, wherein the stapler is configured to be approximately equal to a length between the staplers. The upper handle is provided with the band locking part and the band retaining part on the driver having a driver part for separating and driving out staples loaded in the magazine into one,
The band locking portion provided in the driver protrudes from one side of the hole that penetrates the plate-like driver, and is provided with a step with respect to the surface of the driver, and the other end of the pusher band The stapler according to any one of claims 1 to 4, further comprising a locking piece portion into which the locking hole portion provided on the portion side is inserted. The stapler according to claim 5, wherein the band retaining portion provided in the driver is provided with a step with respect to the surface of the driver, and is configured by the other side of the hole portion. The pusher band has a length from a rear end on the other end side to the locking hole on the other end side, the band locking portion of the driver, and the band retaining portion of the driver. It is comprised to the same extent as the length between.
The stapler according to claim 5 or 6, wherein the stapler is provided. The pusher spring is composed of a compression coil spring that receives a compression load,
A spring guide that suppresses bending due to compression of the pusher spring, and a pusher guide that guides movement of the pusher and guides loading and unloading of staples are integrally formed and includes a guide member that is attached to the inside of the magazine. The stapler according to any one of claims 1 to 7, wherein the stapler is characterized in that:

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