JP2007203415A - Stapler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stapler which can change the number of staples to be driven if necessary. <P>SOLUTION: The stapler 1 comprises a first driver 31 and a second driver 32 having different thicknesses respectively. The second driver 32 is withdrawn to a base portion side, and the driving portion 32a of the second driver is brought into close contact with the driving portion 31a of the first driver so as to overlap with each other. Then, the overlapped driving portions are arranged at a staple driving position capable of driving the staples stored in a magazine. In this case, a slide bar 35 provided in a handle 3 withdraws following the movement of the driving portion 31a of the first driver. As a result, when the relative angle between the handle 3 and the magazine 2 is reduced, the bar side projection 36 formed on the slide bar 35 engages with the plate side projection 26 formed on a slide plate 25 closing a part of a driving port of the staples in the magazine 2, and the slide plate 25 is withdrawn, and the opening width of the driving port 22 is widened. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a stapler, and more particularly to a stapler that can change the number of staples to be ejected.

  Staplers are widely used when binding multiple documents. As the stapler, a magazine that includes a storage unit that stores the binding needle, a magazine that includes a launching port for ejecting the stored binding needle, a handle that includes a driver that ejects the binding needle, and a binding that is ejected from the ejection port. And a base having a clincher that bends both ends of the needle, the handle and the base are arranged with the magazine interposed therebetween, and their bases are attached so as to be relatively rotatable around a support shaft. ing. When the handle is pushed toward the base, the binding needle stored in the magazine is driven out toward the clincher by the driver.

  A stapler usually binds a document with a single binding needle. However, since the binding force is weak with one, there are cases where it is desired to bind a document using a plurality of binding needles. In addition, since the document is torn from the bound portion when the opening and closing of the document bound by one binding needle is repeated, there is a case where it is desired to prevent the binding portion from being easily torn by using a plurality of binding needles. Further, depending on the number of documents to be bound, there is a case where it is desired to bind the document with a strong force using a binding needle having a large width and a long needle portion.

  However, a stapler that can eject a plurality of binding needles at a time as required has not been proposed. In addition, a stapler that can change the binding needle as necessary has not been proposed.

  In view of such a point, an object of the present invention is to propose a stapler capable of changing the number of staples to be ejected. It is another object of the present invention to provide a stapler that can eject different types of binding needles.

  In order to solve the above-described problems, the present invention provides a magazine that includes a storage unit that stores a binding needle, a magazine that has a discharge port for driving out the stored binding needle, a handle that includes a driver that drives out the binding needle, A binding needle housed in the magazine by the driver when the magazine is sandwiched and the handle is pushed into the base. In the stapler that is driven toward the clincher, a plurality of the drivers and the drivers are selectively or simultaneously supported in a state where they can be positioned at a binding needle launching position facing the launching opening. And the opening width of the ejection opening is a width corresponding to the thickness of the driver positioned at the ejection position of the binding needle. Characterized in that as is changeable.

  The stapler of the present invention can change the thickness of the driver by arranging a plurality of drivers selectively or simultaneously at the binding needle launch position. Further, the opening width of the magazine outlet can be changed to a width corresponding to the number of binding needles driven out by the driver. Therefore, if necessary, a document can be bound by ejecting a plurality of binding needles at a time.

  It is preferable that the driver support mechanism of the present invention can be positioned at the binding needle launch position in a state where a plurality of the drivers are overlapped in the thickness direction. By stacking a plurality of drivers, a single thick driver is formed as a whole, so a plurality of binding needles can be ejected at a time with a simple configuration.

  Furthermore, the present invention has an opening width changing mechanism capable of changing the opening width of the ejection opening so as to be a width corresponding to the thickness of the driver positioned at the ejection position of the binding needle. Preferably it is. Since the opening width of the launch opening is changed in accordance with the thickness of the driver arranged at the binding needle launch position, it is easy to eject a plurality of binding needles at a time and bind the document.

  In the case where the driver support mechanism is provided, the opening width changing mechanism is configured such that the tip of the handle abuts on the driver disposed in an overlapping manner at the binding needle launching position, thereby adjusting the thickness of the stacked driver. A slide bar that moves in the thickness direction of the driver by a corresponding amount, a slide plate that seals a part of the ejection opening in the magazine in a state that it can move in the alignment direction of the binding needle, and the handle is pushed in It is preferable to include a link mechanism that moves the slide plate to a position corresponding to the position of the slide bar when the magazine approaches the magazine, and changes the opening width of the launch port.

  Next, the driver support mechanism of the present invention includes a plurality of rotary drivers having different thicknesses that are rotatably attached to a rotary shaft, and the selected rotary driver is bound by rotating the rotary shaft. It may be possible to position at the needle launch position.

  Further, the driver support mechanism of the present invention includes one fixed driver and a plurality of rotary drivers fixed at the binding needle launch position, and the plurality of rotary drivers are centered on a common axis. It may be rotatably supported, and may be positioned at a position overlapping the fixed driver in the thickness direction and a retracted position.

  Even when such a driver support mechanism is provided, the opening width of the ejection opening can be changed so as to be a width corresponding to the thickness of the driver positioned at the ejection position of the binding needle. It is preferable to have a change mechanism.

  Further, in the case of including a rotation driver, the opening width changing mechanism includes a protruding portion corresponding to the thickness of the rotation driver at the handle, and a cam that rotates as the rotation driver rotates. The tip of the cam abuts on the outer peripheral surface of the cam, and the slide bar moves in the thickness direction of the driver by an amount corresponding to the thickness of the protruding portion, and the magazine can move in the binding needle alignment direction. When the handle is pushed in and close to the magazine, the slide plate is moved to a position corresponding to the position of the slide bar when the handle is pushed in, And a link mechanism for changing the opening width of the mouth opening.

  Here, the link mechanism can be engaged with a bar-side protrusion protruding from the slide bar toward the magazine and a plate-side protrusion protruding from the slide plate. Since the position of the slide bar can be made to correspond to the position of the slide plate with a simple configuration of engaging the protrusions, it is easy to change the opening width of the launch port.

  Next, in this invention, the structure provided with the two said magazines which can accommodate the binding needle of different thickness is employable. In this case, the two magazines are connected at one end so that the respective ejection openings are located at both ends, and are rotated around an intermediate point between the two ejection openings. The selected one ejection opening is arranged at a predetermined position where the binding needle can be ejected. If the two magazines store the binding needles having different thicknesses, it is possible to select the binding needle according to the application and bind the document.

  The stapler of the present invention can change the thickness of the driver by arranging a plurality of drivers selectively or simultaneously at the binding needle launch position. Further, the opening width of the magazine outlet can be changed to a width corresponding to the number of binding needles driven out by the driver. Therefore, if necessary, a document can be bound by ejecting a plurality of binding needles at a time.

  In addition, if the opening width change mechanism is changed to the opening width of the ejection opening corresponding to the thickness of the driver arranged at the binding needle ejection position, a plurality of binding needles are ejected at once and the document is bound. Easy to do.

  In addition, when two magazines are provided, a document can be bound using different binding needles with different thicknesses.

  A stapler to which the present invention is applied will be described below with reference to the drawings.

(Configuration of stapler)
The stapler of this example will be described with reference to FIGS. FIG. 1 is a schematic sectional view of the stapler of this example. The stapler 1 of this example includes a magazine 2 having a storage portion 21 for storing a binding needle, a discharge port 22 for driving the stored binding needle, and two drivers 31 and 32 for driving the binding needle. It has a handle 3 having a support mechanism 30 and a base 4 having a clincher 41 that bends both ends of a binding needle punched from the punching port 22. A handle 3 and a base 4 are arranged with the magazine 2 interposed therebetween, and their base portions are attached so as to be relatively rotatable about a support shaft 42.

  A storage portion 21 of the magazine 2 stores a U-shaped binding needle 100 aligned from the front end side toward the base side. The binding needle 100 is pushed to the distal end side by the needle presser 23. A launch port 22 is formed at the distal end portion of the storage portion 21, and a slide plate 25 covering a part of the base side of the launch port 22 is laid on the bottom surface. The slide plate 25 is movable in the distal end side direction and the base side direction, and the opening width of the launch port 22 can be adjusted by moving the slide plate 25. In a normal state (initial state), the slide plate 25 is disposed at a position where the opening width of the discharge opening 22 becomes an opening width suitable for driving one binding needle. A plate-side protrusion 26 extending toward the handle side is formed at the rear end portion of the slide plate 25, and the surface on the tip side of the plate-side protrusion 26 is a tapered surface whose upper end is inclined toward the base side. The rear end is supported by the magazine via the coil spring 27.

  The first and second drivers 31 and 32 provided in the handle 3 are L-shaped provided with projecting portions 31a and 32a extending toward the magazine 2 and support portions 31b and 32b extending toward the base. It has a shape. The first driver launch portion 31a has a thickness suitable for launching one binding needle, and the second driver launch portion 32a has a thickness of two binding needles simultaneously. The thickness is suitable for punching. The lower half portions of the two driver launch portions 31a and 32a protrude from the handle 3 toward the magazine 2, and the first driver launch portion 31a is the second driver launch portion. It is on the base side from 32a. The first and second drivers 31 and 32 are slidable in the front-rear direction from the tip side to the base side and from the base side to the tip side, and the rear end of the support portion 31b of the first driver is a first coil spring. It is supported by the handle 3 through 33. The second driver 32 is arranged so as to overlap the first driver 31, and the rear end of the second driver support portion 32 b is connected to the first driver support portion 31 b via the second coil spring 34. It is supported by the protrusion formed.

  Here, the handle 3 is provided with a slide bar 35 whose tip is in contact with the base-side surface of the projecting portion 31a of the first driver. The slide bar 35 is supported so as to move in the front-rear direction following the movement of the projecting portion 31 a of the first driver, and the rear end is supported by the handle 3 via a coil spring 37. A bar-side protrusion 36 extending toward the magazine is formed at the rear end portion, and a lower half portion of the bar-side protrusion 36 protrudes from the handle 3 toward the magazine 2.

  A clincher 41 is provided at the tip of the base 4. The clincher 41 is disposed at a position where the needle portion of the binding needle punched from the punching port 22 can be folded, and can bind one to three binding needles.

(When binding documents using a single binding needle)
A case where a document is bound using one binding needle will be described. FIG. 2 is a schematic cross-sectional view showing a state in which one binding needle is driven out by narrowing the relative angle between the handle, the magazine, and the base. The lower end of the first driver ejection portion 31a is in a position where it hits the back portion of the leading binding needle, that is, in the binding needle ejection position facing the ejection port 22 of the magazine 2. On the other hand, the projecting portion 32 a of the second driver is at a position that does not interfere with the magazine 2 further ahead of the tip of the magazine 2. In this state, the bar-side protrusion 36 and the plate-side protrusion 26 are in positions that do not interfere with each other, and the opening width of the launching opening 22 is an initial opening width that is suitable for firing one binding needle. It has become.

  Therefore, if the document 102 is sandwiched between the magazine 2 and the base 4 and the handle 3 is pushed toward the base 4 to reduce the relative angle between the handle 3, the magazine 2 and the base 4, the first driver 31 can be used. One binding needle at the top of the storage unit can be ejected from the ejection port 22. The punched binding needle is folded by the clincher 41 after the needle portion penetrates the document and binds the document 102.

(When binding documents using multiple binding needles)
FIG. 3 is a schematic cross-sectional view showing a state of a driver when a document is bound by three binding needles. FIG. 4 is a schematic cross-sectional view illustrating a state in which the relative angle between the handle, the magazine, and the base is narrowed when binding a document with three binding needles.

  When a document is bound using three binding needles, the second driver 32 is moved backward to the base side, and the second driver ejection portion 32a and the first driver ejection portion 31a are overlapped. Thus, a driver having a thickness suitable for ejecting three binding needles as a whole is configured. Further, the driver configured as described above is arranged at the binding needle launch position.

  In this example, the second driver 32 may be retracted to the position where the first driver 31 has been disposed. That is, when the second driver 32 is moved backward, the second coil spring 34 disposed between the second driver 32 and the first driver 31 contracts, and the second driver launching portion 32a. The projecting portion 31a of the first driver overlaps and comes into close contact with the first driver, and in this state, the first coil spring 33 disposed at the rear end of the first driver 31 is contracted while being contracted. Retreat to the position. As a result, the driver having a thickness capable of ejecting three binding needles is disposed at the binding needle ejecting position where the three binding needles can be ejected from the top of the storage portion 21. In order to retract the second driver 32, a protrusion that protrudes to the outside of the handle 3 is provided on the second driver, and a groove and a locking portion for guiding the protrusion are formed on the handle side. Just keep it.

  Here, when the first and second drivers 31 and 32 are in close contact with each other and retracted to a predetermined position, the slide bar 35 that moves following the movement of the launching portion 31a of the first driver is The driver retreats in the base direction by the thickness of the driving portion 32a. Therefore, as shown in FIG. 4, when the relative angle between the handle 3 and the magazine 2 is reduced, the bar-side protrusion 36 protruding from the handle 3 toward the magazine 2 is engaged with the tapered surface of the plate-side protrusion 26. Then, the plate-side protrusion 26 is pushed to the base side. As a result, the slide plate 25 moves in the base direction by an amount corresponding to the thickness of the launch portion 32a of the second driver, and the opening width of the launch port 22 is changed from the initial opening width to three binding needles. The opening width is suitable for punching. Therefore, the document 102 can be bound by ejecting three binding needles at a time.

  In this example, the thickness of the launch portion 32a of the second driver is set to a thickness suitable for ejecting two binding needles, but is the same as the thickness of the launch portion 31a of the first driver. If the thickness is set to, the document can be bound using two binding needles at a time. Moreover, it can also be set as the thickness suitable for punching out three or more binding needles.

(Configuration of stapler)
The stapler of this example will be described with reference to FIGS. FIG. 5 is a schematic cross-sectional view of the stapler of this example. The stapler 1A of the present example is different from the first embodiment in the configuration of the driver support mechanism 60, but the other configurations are the same, so common portions are denoted by the same reference numerals and illustrated in FIG. Those explanations are omitted.

  The driver support mechanism 60 of the stapler 1A of this example includes a fixed driver 61, first and second attachment / detachment drivers 62 and 63 that are detachably accommodated at the tip of the handle, and first and second attachment / detachment drivers 62. , 63 is slidably supported, and a guide frame 65 is provided. The thickness of the driver is changed by slidably arranging the detachable driver on the base side of the fixed driver 61 to constitute a single thick driver as a whole.

  FIG. 6 is a front view and a side view of each driver as viewed from the front end side of the handle. FIG. 7 is a side view and a sectional view of the guide frame. FIG. 8 is a schematic cross-sectional view showing a state in which the detachable driver is housed in the handle tip portion. FIG. 9 is a schematic cross-sectional view showing a state of the driver support mechanism when driving a plurality of binding needles.

  As shown in FIG. 6A, the fixed driver 61 is a flat plate having a stepped portion at the upper end, and the thickness of the launching portion 61a is suitable for ejecting one binding needle. When the relative angle between the handle, the magazine, and the base is narrowed, the leading staple of the binding needle stored in the magazine is attached to the binding needle launching position where it can be ejected by the ejection portion 61a. Two fixing pins 61b extending toward the base side are provided.

  As shown in FIGS. 6B and 6C, each of the second and third attachment / detachment drivers is provided with ejection portions 62a and 63a having a thickness suitable for ejecting one binding needle. It is a flat plate. It has a substantially rectangular shape and is provided with guide protrusions 64 on the left and right side surfaces. The upper end portion protrudes on one side and on the left and right. In addition, fixing holes 62b and 63b that fit with the two pins 61b of the fixing driver are provided.

  As shown in FIG. 7, the guide frame 65 includes a groove portion 66 that engages with the guide protrusion 64 of the detachable driver at the center, and is attached to face the left and right side surfaces inside the handle 3. The tip portion is inclined toward the magazine 2 side, and the other portion is a driver storage portion that extends linearly toward the base side. A notch 67 is formed on the base side of the driver storage portion. As shown in FIG. 8A, since the handle 3 is provided with an opening / closing lid 69 that opens the upper side of the guide frame, the opening / closing lid 69 is opened and the guide projection 64 and the groove portion are formed from the notch 67. If the first and second attachment / detachment drivers 62 and 63 are inserted so as to engage with the attachment / detachment 66, the attachment / detachment drivers 62 and 63 are slidably supported within the range of the groove portion 66 of the guide frame 65. A plate-like driver support plate 68 is provided below the guide frame 65 to prevent the lower end portion of the detachable driver supported by the guide frame 65 from hanging down to the magazine 2 side.

(When binding documents using a single binding needle)
When a document is bound using one binding needle, the binding needle is driven out by a fixed driver 61 as shown in FIG. Here, the tip 35a of the slide bar is in contact with the base side surface of the fixed driver projecting portion 61a. This state is the same as the case where the document is bound using one binding needle in the first embodiment. It is the same state. Therefore, the bar-side protrusion 36 and the plate-side protrusion 26 are in positions that do not interfere with each other, and the opening width of the launching opening 22 is an initial opening width suitable for ejecting one binding needle.

  Accordingly, if the document is sandwiched between the magazine 2 and the base 4 and the relative angle between the handle 3, the magazine 2 and the base 4 is further narrowed, the fixed driver 61 removes one binding needle at the head of the storage unit 21. It can be ejected from the ejection port 22. The stitched binding needle is folded by the clincher 41 after the needle portion penetrates the document, and binds the document.

(When binding documents using multiple binding needles)
When binding a document using two binding needles, the opening / closing lid 69 is opened, the first attachment / detachment driver 62 is slid and inserted between the slide bar 35 and the fixed driver 61, and fixed to the fixing pin 61b. The fixed driver 61 and the first detachable driver 62 are brought into close contact with each other by fitting the hole 62b. When the opening / closing lid 69 is closed, as shown in FIG. 9A, the protruding portion at the upper end of the first attaching / detaching driver 62 is fixed by a driver presser 69 a formed at the lower end portion of the opening / closing lid 69.

  Here, since the tip 35a of the slide bar abuts on the base side surface of the inserted first detachable driver 62, the slide bar 35 moves in the base direction by the thickness of the first detachable driver 62. For this reason, when the relative angle between the handle 3, the magazine 2 and the base 4 is narrowed, the bar-side protrusion 36 protruding from the handle 3 toward the magazine 2 engages with the tapered surface of the plate-side protrusion 26, and the slide plate 25 Is moved in the base direction corresponding to the thickness of the first attaching / detaching driver 62, so that the opening width of the launching opening 22 is set to an opening width suitable for ejecting two binding needles from the opening width in the initial state. . Therefore, two binding needles can be ejected at a time to bind the document.

  In addition, when binding a document using three binding needles, the opening / closing lid 69 is opened, the second attachment / detachment driver 63 is slid, and the first attachment / detachment driver 62 and the slide bar 35 are in close contact with the fixed driver 61. The fixing driver 61, the first attaching / detaching driver 62, and the second attaching / detaching driver 63 are brought into close contact with each other by fitting the fixing pin 61b and the fixing hole 63b. When the opening / closing lid 69 is closed, the protruding portions at the upper ends of the first and second attachment / detachment drivers 62 and 63 are fixed by a driver presser 69 a formed at the lower end of the opening / closing lid 69.

  Here, since the tip 35a of the slide bar abuts on the base side surface of the inserted second detachable driver 63, the slide bar 35 has a thickness corresponding to the thickness of the first detachable driver 62 and the second detachable driver 63. Move in the base direction. For this reason, when the relative angle between the handle 3, the magazine 2 and the base 4 is narrowed, the bar-side protrusion 36 protruding from the handle 3 toward the magazine 2 engages with the tapered surface of the plate-side protrusion 26, and the slide plate 25 Is moved in the base direction by an amount corresponding to the thickness of the first and second detachable drivers. As a result, the opening width of the launch port 22 is a width suitable for ejecting three binding needles.

  In this example, the fixed driver 61 and the first and second attachment / detachment drivers 62 and 63 are all suitable for driving one binding needle. There is no need to use. The thickness of each driver may be a thickness suitable for driving two or more binding needles.

(Configuration of stapler)
FIG. 10 is a schematic cross-sectional view of the stapler of this example. The stapler 1B of this example is different from that of the first embodiment in the configuration of the driver support mechanism 70 and the configuration in which the slide bar is moved in accordance with the thickness of the driver. The same reference numerals are given to the parts to be illustrated in FIG. 10, and the description thereof is omitted.

  The driver support mechanism of this example includes a rotating shaft 75 and first, second, and third rotating drivers 71, 72, and 73 formed of flat plates with different thicknesses that are radially attached to the rotating shaft 75. The thickness of the driver is changed by rotating the rotary drivers 71, 72, 73 and positioning and fixing the selected driver at a binding needle launching position where the binding needle can be ejected. The first rotation driver 71 has a thickness suitable for driving one binding needle, and the second and third rotation drivers 72 and 73 respectively drive two and three binding needles. The thickness is suitable for.

  Here, a cam 76 having three protruding portions in the radial direction is attached to one end portion of the rotating shaft 75. The first, second, and third projecting portions 76a, 76b, and 76c project in the radial direction so as to correspond to the thicknesses of the first, second, and third rotary drivers 71, 72, and 73, respectively. Further, the slide bar 35 is disposed so that the tip 35 a abuts the outer peripheral surface of the cam 76. Accordingly, when the cam 76 rotates as the rotating shaft 75 rotates, the slide bar 35 moves by an amount corresponding to the thickness of the protruding portions 76a, 76b, and 76c.

(When binding documents using a single binding needle)
When a document is bound using one binding needle, as shown in FIG. 10, the rotation shaft 75 is rotated to position the first rotation driver 71 at the binding needle ejection position. Since the lower half portion of the first rotation driver 71 protrudes from the handle 3 toward the magazine 2, the binding needle 100 stored in the magazine 2 can be ejected.

  Here, since the cam 76 rotates with the rotation of the rotating shaft 75, the tip 35a of the slide bar comes into contact with the first protruding portion 76a located on the base side of the cam 76. The position of the slide bar 35 in this state is the same position as in the case of binding a document using one binding needle in the first embodiment. That is, the bar-side protrusion 36 and the plate-side protrusion 26 are in positions where they do not interfere with each other, and the opening width of the launching opening 22 is an initial opening width suitable for ejecting one binding needle. . Therefore, if the document is sandwiched between the magazine 2 and the base 4 and the relative angle between the handle 3, the magazine 2 and the base 4 is further narrowed, the first rotation driver 71 is one binding at the head of the storage unit. The needle can be ejected from the ejection port 22. The stitched binding needle is folded by the clincher 41 after the needle portion penetrates the document, and binds the document.

(When binding documents using multiple binding needles)
When a document is bound using two binding needles, the rotary shaft 75 is rotated to position and fix the second rotation driver 72 at the binding needle launch position. Here, since the cam 76 rotates with the rotation of the rotating shaft 75, the tip 35 a of the slide bar comes into contact with the second protruding portion 76 b of the cam 76. The second protruding portion 76b has a difference between the thickness of the second driver 72 and the thickness of the first driver 71, that is, the first protruding portion by a thickness suitable for driving one binding needle. Since it protrudes in the radial direction from 76a, the slide bar 35 also moves in the base direction accordingly.

  Therefore, when the relative angle between the handle 3 and the magazine 2 is reduced, the bar-side protrusion 36 protruding from the handle 3 toward the magazine 2 is engaged with the taper surface of the plate-side protrusion 26, so that the slide plate 25 is further The book is moved in the base direction corresponding to the thickness suitable for punching the binding needle. As a result, the opening width of the launching opening 22 becomes a width suitable for ejecting two binding needles from the opening width in the initial state. Therefore, two binding needles can be ejected at a time to bind the document.

  When a document is bound using three binding needles, the rotation shaft 75 is rotated to position and fix the third rotation driver 73 at the binding needle launch position. Here, since the cam 76 rotates with the rotation of the rotating shaft 75, the tip of the slide bar 35 comes into contact with the third protruding portion 76 c of the cam 76. The third projecting portion 76c is the first projecting portion by the difference between the thickness of the third driver 73 and the thickness of the first driver 71, that is, the thickness suitable for ejecting two binding needles. Since it protrudes in the radial direction from 76a, the slide bar also moves in the base direction accordingly. As a result, the bar-side protrusion 36 engages with the tapered surface of the plate-side protrusion 26, and the slide plate 25 is moved in the base direction corresponding to a thickness suitable for driving two binding needles. . As a result, the opening width of the punching opening 22 becomes a width suitable for punching three binding needles from the opening width in the initial state. Therefore, the three binding needles are punched at a time to bind the document. Can do.

  Further, when a document is bound using a plurality of binding needles, the number and thickness of the rotary drivers attached to the rotary shaft 75 are changed, and the slide bar 35 is adapted so that the shape of the cam 76 corresponds to the thickness of the rotary driver. The shape can be moved.

  FIG. 11 shows a stapler 1 </ b> C according to a modification of the present example, in which four rotary drivers having different thicknesses protrude from the outer peripheral surface of the rotary shaft 75. Other than the shape of the cam 76 having a fourth rotation driver 74 having a thickness suitable for ejecting four binding needles and a fourth projecting portion 76d corresponding to the thickness of the fourth rotation driver 74 Since the configuration is the same as that of the third embodiment, the same reference numerals are given and the description thereof is omitted.

(Configuration of stapler)
The stapler of this example will be described with reference to FIGS. FIG. 12 is a schematic cross-sectional view of the stapler of this example. The stapler 1D of the present example is different from the first embodiment in the configuration of the driver support mechanism 80 and the configuration in which the slide bar is moved in accordance with the thickness of the driver. The same reference numerals are given to the parts to be illustrated in FIG. 12, and the description thereof is omitted.

  The driver support mechanism 80 of this example includes a fixed driver 81 fixed at the binding needle launch position, and first and second rotary drivers 82 and 83 that are rotatably attached to a fixed shaft 84. The thickness of the driver is changed by arranging a rotary driver on the base side of the driver 81 so as to form a single thick driver as a whole. Further, in this example, as indicated by a one-dot chain line in FIG. 12, a dial 85 for rotating the rotation drivers 82 and 83 from the side of the fixed shaft 84 is attached, and a cam 87 is formed on the dial 85. Yes. The slide bar 35 moves back and forth in response to the rotation of the rotation drivers 82 and 83 by the slide bar tip 35 a coming into contact with the outer peripheral surface of the cam 87.

  FIG. 13 is a front view and a sectional view of each driver as viewed from the base side. As shown in FIG. 13 (a), the fixed driver 81 is formed by bending a flat plate, and has a striking portion 81a extending toward the magazine 2 side and a staircase portion that bends from the upper end toward the base side. 81b, and a fixed portion 81c extending from the staircase portion toward the base side. An opening 81d is formed in the central portion from the upper half portion of the projecting portion 81a to the staircase portion. In the fixed driver 81, the fixed portion 81c is fixed to the ceiling portion of the handle 3 so that the fixed shaft 84 is positioned on the tip side of the stepped portion 81b, and the lower half portion of the projecting portion 81a is on the magazine 2 side. It protrudes. The punching portion 81a is at a binding needle driving position where the leading binding needle of the binding needle 100 stored in the magazine 2 can be driven out if the relative angle between the handle 3 and the magazine 2 is narrowed.

  As shown in FIG. 13B, the first rotary driver 82 includes a flat plate-like projecting portion 82a, two left and right cylindrical portions 82c that pass through the fixed shaft on the inside, a cylindrical portion 82c, and an ejected portion 81a. And two left and right connecting portions 82b for connecting the two. The connecting portion 82 b is formed so as to have a narrower width in the axial direction than the cylindrical portion 82 c, and has a “<” shape that protrudes toward the distal end side of the handle 3. As shown in FIG. 13 (c), the second rotary driver 83 includes a flat plate-like projecting portion 83a, a cylindrical portion 83c that penetrates the fixed shaft inside, and the center of the upper end of the cylindrical portion 83c and the projecting portion 83a. And a connecting portion 83b for connecting the portions. The connecting portion 83b extends obliquely from the cylindrical portion 83c toward the base portion, and then continues to the central portion of the upper end edge of the projecting portion 83a.

  FIG. 14 shows a state in which three drivers are stacked. FIG. 14A is a plan view of a state in which three drivers are stacked and viewed from the base side. FIG. 13B is a cross-sectional view thereof. The first and second rotary drivers 82 and 83 are arranged so that the cylindrical portion 83 c of the second rotary driver 83 is positioned between the left and right cylindrical portions 82 c of the first rotary driver 82. Further, the connecting portions 82 b and 83 b pass through an opening 81 d formed in the fixed driver 81, and the cylindrical portions 82 c and 83 c are attached to the fixed shaft 84. For this reason, the first and second rotary drivers 82 and 83 can rotate within a certain angular range around the fixed shaft 84 without interfering with the fixed driver 81. Coil springs 90 and 91 are attached to both sides of the cylindrical portion 83c of the second rotary driver, and the tip of the first coil spring 90 is in contact with the tip side surface of the projecting portion 82a of the first rotary driver. The first rotation driver 82 is urged toward the ceiling side. The tip of the second coil spring 91 abuts on the tip-side surface of the projecting portion 83a of the second rotary driver, and urges the second rotary driver 83 toward the ceiling. As a result, in a normal state, only the driving portion 81a of the fixed driver protrudes toward the magazine 2, and as shown in FIG. 11, the driving portions 82a and 83a of the first and second rotary drivers. Is stuck to the ceiling side of the handle 3.

  The dial 85 attached to the stapler of this example will be described with reference to FIG. FIG. 15A is a plan view showing a state in which the dial is attached to the distal end portion of the handle, and FIG. 15B is a sectional view thereof. The fixed driver 81 and the coil springs 90 and 91 are omitted so that the shape of the dial 85 can be seen.

  The dial 85 for rotating the rotation drivers 82 and 83 includes a disk-shaped dial portion 86 and a dial side cylinder portion 88 that protrudes coaxially from the dial portion 86 with the dial portion. A cam 87 having three projecting portions in the radial direction is coaxially formed between the dial portion 86 and the dial side cylinder portion 88. The dial-side cylinder portion 88 includes inner peripheral surfaces that are fitted to the outer peripheral surfaces of the cylindrical portions 82c and 83c of the first and second rotary drivers, and the first and second rotary drivers attached to the fixed shaft 84. Are attached to the outer peripheral surfaces of the cylindrical portions 82c and 83c in a rotatable manner. The dial-side cylinder portion 88 includes a notch portion 88a that is notched in a certain angular range in the axial direction, and a rotary stay 88b that protrudes in the radial direction on the opening end side of the edge portion of the notch portion 88a. Is formed. Further, a protrusion 88c is formed on the outer peripheral surface over a certain angle range.

  As shown in FIG. 15 (a), the dial 85 is normally inserted to a position where the dial side cylinder portion 88 is fitted to one cylinder portion 82c of the first rotation driver. A coil spring 89 disposed on the bottom surface of 88 is in contact with the end surface of the cylindrical portion 82c of the first rotary driver. The rotary stay 88b is in contact with the ceiling side portion of one connecting portion 82b of the first rotary driver.

  When the dial 85 is attached to the handle 3, the cam 87 is positioned on one end side of the fixed shaft 84. The cam 87 includes first, second, and third projecting portions 87a, 87b, and 87c that project in the radial direction so as to correspond to the thicknesses of the fixed driver 81 and the first and second rotary drivers 82 and 83. Yes. Here, the distal end portion of the slide bar 35 extends along the side surface of the handle 3, and the distal end 35 a is in contact with the outer peripheral surface of the cam 87. Accordingly, when the cam 87 rotates as the dial 85 rotates, the slide bar 35 moves by an amount corresponding to the thickness of the protruding portions 87a, 87b, 87c.

(When binding documents using a single binding needle)
FIG. 16 is an explanatory view schematically showing the arrangement of the rotary stay 88b, the cam 87, and the drivers 81, 82, and 83. A tip portion of the slide bar 35 that contacts the outer peripheral surface of the cam 87 is indicated by a two-dot chain line.

  When binding a document using one binding needle, the document 3 is sandwiched between the magazine 2 and the base 4 without turning the dial 85, and the relative angle between the handle 3, the magazine 2 and the base 4 is set. Narrow it. That is, as shown in FIG. 16A, the document is bound in a state where only the projecting portion 81a of the fixed driver 81 faces the magazine 2 side.

  Here, the tip 35 a of the slide bar is in contact with the first protruding portion 87 a located on the base side of the cam 87. The position of the slide bar 35 in this state is the same position as in the case of binding a document using one binding needle in the first embodiment. That is, the bar-side protrusion 36 and the plate-side protrusion 26 are in positions where they do not interfere with each other, and the opening width of the launching opening 22 is an initial opening width suitable for ejecting one binding needle. . Therefore, the fixed driver 81 can eject one binding needle at the head of the storage portion 21 from the ejection port 22. The stitched binding needle is folded by the clincher 41 after the needle portion penetrates the document, and binds the document.

(When binding documents using multiple binding needles)
When binding a document using two binding needles, the dial 85 may be rotated clockwise. As the dial 85 rotates, the rotary stay 88b that has been in contact with the ceiling side of the connecting portion 82b of the first rotary driver 82 rotates, so that the first rotary driver launch portion 82a is ejected by the fixed driver. It is rotated and moved to the binding needle launch position that is in close contact with the base side of the portion 81a. As a result, as shown in FIG. 16 (b), one driver having a thickness suitable for driving two binding needles as a whole is formed at the distal end portion of the handle 3.

  Here, since the cam 87 also rotates with the rotation of the dial 85, the tip 35a of the slide bar comes into contact with the second protruding portion 87b of the cam 87. The second projecting portion 87b projects more radially than the first projecting portion 87a by the thickness of the first rotary driver 82, that is, the thickness suitable for punching one binding needle. Therefore, the slide bar 35 also moves in the direction of the base by that amount.

  Therefore, when the relative angle between the handle 3 and the magazine 2 is reduced, the bar-side protrusion 36 protruding from the handle 3 toward the magazine 2 is engaged with the taper surface of the plate-side protrusion 26, and the slide plate 25 is further moved. The base is moved in the direction of the base corresponding to a thickness suitable for punching one binding needle. As a result, the opening width of the launching opening 22 becomes a width suitable for ejecting two binding needles from the opening width in the initial state. Therefore, two binding needles can be ejected at a time to bind the document.

  When binding a document using three binding needles, the dial 85 is once rotated counterclockwise from the normal state shown in FIG. Thereafter, the dial 85 is pushed in the axial direction of the fixed shaft 84 so that the dial side cylinder portion 88 is fitted to the cylinder portion 83c of the second rotation driver, and the rotation stay 88b is connected to the connection portion 83b of the second rotation driver. Make contact with the ceiling part. That is, by rotating counterclockwise, the positions of the notches 88a of the dial side tube 88 and the connecting portions 82b and 83b of the first and second rotation drivers are made to correspond to each other, so that the dial side tube 88 and the rotation driver are matched. The connecting portions 82b and 83b are not interfered with each other. Thereafter, the dial 85 is pushed in all the way. If the dial 85 is pushed and then rotated clockwise, the projection 88c formed on the outer peripheral surface of the dial side cylinder portion engages with the dial stopper 92 extending from the ceiling portion of the handle, so the dial 85 is pushed. The dial 85 can be rotated clockwise while the state is maintained.

  If the dial 85 is rotated clockwise with the dial 85 being pushed in, the rotary stay 88b in contact with the ceiling side of the connecting portion 83b of the second rotary driver rotates the second rotary driver 83. Along with the rotation of the second rotary driver 83, the first rotary driver 82 located at a position where the projecting portions interfere with each other also rotates together, and the first and second rotary driver launch portions 82a, 83a goes to the magazine 2 side. Eventually, the fixed driver launch portion 81a and the first and second rotary driver launch portions 82a and 83a come into close contact with each other, as shown in FIG. A single driver having a thickness of three as a whole is configured.

  Here, since the cam 87 rotates with the rotation of the dial 85, the tip 35 a of the slide bar comes into contact with the third projecting portion 87 c of the cam 87. The third protruding portion 87c is larger than the first protruding portion 87a by the thickness of the third driver and the thickness of the second driver, that is, the thickness suitable for punching two binding needles. Projecting in the radial direction, the slide bar also moves in the base direction accordingly. Therefore, when the relative angle between the handle 3 and the magazine 2 is reduced, the bar-side protrusion 36 protruding from the handle 3 toward the magazine 2 is engaged with the taper surface of the plate-side protrusion 26, and the slide plate 25 is further moved. The base is moved in the base direction corresponding to the thickness suitable for punching the two binding needles. As a result, the opening width of the punching opening 22 becomes a width suitable for punching three binding needles from the opening width in the initial state. Therefore, the three binding needles are punched at a time to bind the document. Can do.

(Configuration of stapler)
FIG. 17 is a schematic cross-sectional view of the stapler of this example. This example is different from Example 2 in that it includes two magazines that can store binding needles of different thicknesses, but the other configuration is the same as that of Example 2, and the common parts are the same. The description is omitted with reference to FIG.

  The stapler 1E of the present example includes first and second magazines 50 and 50 ′, and the first magazine 50 accommodates a binding needle 100 having a narrow width suitable for driving with a fixed driver 61. ing. The second magazine stores a binding needle 101 having a width twice that of the binding needle stored in the first magazine. One ends of the first and second magazines 50 and 50 'are connected so that the respective ejection openings 52 and 52' are located at both ends. The rear end of the first slide plate 55 of the first magazine and the rear end of the second slide plate 55 ′ of the second magazine are connected via a coil spring 59. The two connected magazines 50 and 50 ′ are mounted on the magazine base 58 so as to be rotatable around an intermediate point 57 between the two launch openings 52 and 52 ′.

  The opening width of the first magazine outlet 52 is the binding needle accommodated in the first magazine 50 in the initial state where the bar-side protrusion 36 and the plate-side protrusion 56 of the first slide plate 55 do not interfere with each other. The opening width is suitable for punching out 100 binding needles.

  The opening width of the ejection opening 52 ′ of the second magazine is stored in the second magazine 50 ′ in the initial state where the bar-side projection 36 and the plate-side projection 56 ′ of the second slide plate 55 ′ do not interfere with each other. The opening width is suitable for driving one binding needle of the binding needles 101, that is, the opening width that allows two binding needles 100 stored in the first magazine 50 to be ejected. .

(When binding documents using a single binding needle)
When a document is bound using one thin binding needle 100 stored in the first magazine 50, the two magazines 50 and 50 'are rotated on the magazine base 58 as shown in FIG. One magazine 50 is arranged at a predetermined position on the front end side. Then, the binding needle is ejected using the fixed driver 61 at the binding needle ejection position.

  Here, the tip 35a of the slide bar is in contact with the base side surface of the fixed driver 61. In this state, the bar-side protrusion 36 and the plate-side protrusion 56 of the slide plate 55 of the first magazine 50 are different from each other. Do not interfere with each other. Accordingly, the opening width of the first magazine outlet 52 remains in the initial state, and is a width suitable for driving one binding needle. Therefore, when the document is sandwiched between the magazine 50 and the base 4 and the relative angle between the handle 3, the magazine 50 and the base 4 is further reduced, the fixed driver 61 is at the head of the storage portion 51 of the first magazine 50. One binding needle can be ejected from the ejection port 52. The stitched binding needle is folded by the clincher 41 after the needle portion penetrates the document, and binds the document.

(When binding documents using multiple binding needles)
When binding a document using two thin binding needles 100 stored in the first magazine 50, the first attachment / detachment driver 62 is slid and inserted between the slide bar 35 and the fixed driver 61, The fixed driver 61 and the first detachable driver 62 are brought into close contact with each other, and a driver having a thickness corresponding to two drivers is configured at the binding needle ejection position.

  Here, since the tip 35a of the slide bar abuts on the base side surface of the inserted first detachable driver 62, the slide bar 35 moves in the base direction by the thickness of the first detachable driver 62. For this reason, when the relative angle between the handle 3 and the magazine 50 is reduced, the bar-side protrusion 36 engages with the tapered surface of the plate-side protrusion 56 of the first slide plate 55, and the first slide plate 55 is moved to the first slide plate 55. The base is moved in the base direction corresponding to the thickness of the detachable driver 62. As a result, the opening width of the first magazine outlet 52 becomes an opening width suitable for two staples from the initial opening width. Therefore, if the document is sandwiched between the magazine 50 and the base 4 and the relative angle between the handle 3, the magazine 50, and the base 4 is further narrowed, the two binding needles can be ejected at a time to bind the document. .

  When the binding needle 100 stored in the first magazine 50 is used to bind a document using three binding needles, the first and second attachment / detachment drivers 62 and 63 are slid to slide with the fixed driver 61. The driver is inserted between the bars 35, and a driver having a thickness of three drivers is formed at the binding needle ejection position. Here, since the tip 35a of the slide bar abuts on the base side surface of the inserted second detachable driver 63, the slide bar 35 has a thickness corresponding to the thickness of the first detachable driver 62 and the second detachable driver 63. It moves in the base direction. Therefore, when the relative angle between the handle 3 and the magazine 50 is narrowed, the bar-side protrusion 36 engages with the tapered surface of the plate-side protrusion 56 of the first slide plate 55, and the first slide plate 55 is moved to the first and the first slide plates 55. The second attachment / detachment drivers 62 and 63 are moved in the base direction corresponding to the thicknesses of the drivers. As a result, the opening width of the launching opening 52 becomes a width suitable for ejecting three binding needles from the opening width in the initial state. Therefore, the document can be bound by ejecting three binding needles at a time.

(When binding documents using binding needles of different widths)
When a document is bound using one wide binding needle 101 stored in the second magazine, it is the same as when a document is bound using two binding needles stored in the first magazine 50. First, the first attachment / detachment driver 62 is slid and inserted between the slide bar 35 and the fixed driver 61, and the fixed driver 61 and the first attachment / detachment driver 62 are brought into close contact with each other to have a thickness equivalent to two drivers. The driver is configured at the binding needle launch position. Thereafter, the two connected magazines 50 and 50 ′ are rotated on the magazine base 58, and the second magazine 50 ′ is arranged at a predetermined position on the tip side.

  Here, since the tip 35a of the slide bar abuts on the base side surface of the inserted first detachable driver 62, the slide bar 35 moves in the base direction by the thickness of the first detachable driver 62. . However, in this state, even if the relative angle between the handle 3 and the magazine 50 ′ is narrowed, the bar-side protrusion 36 and the taper surface of the plate-side protrusion 56 ′ of the second slide plate 55 ′ of the second magazine 50 ′ Is set so as not to interfere. That is, the opening width of the ejection opening 52 ′ of the second magazine remains in the initial state, and is a width suitable for ejecting one wide binding needle 101. Therefore, a document can be bound using one wide binding needle.

  If the thickness of the second attaching / detaching driver 63 in this example is set to the thickness of two sheets of the first attaching / detaching driver 62, the wide binding needle 101 accommodated in the second magazine 50 ′ is removed. You can use two to bind documents. That is, the first and second attaching / detaching drivers 62 and 63 are slid and inserted between the fixed driver 61 and the slide bar 35 so as to be in close contact with each other, thereby binding the four fixed drivers as a whole. Configure the needle launch position. Here, since the tip 35a of the slide bar comes into contact with the surface of the inserted second attachment / detachment driver 63 on the base side, the slide bar 35 has a thickness of the first attachment / detachment driver 62 and the second attachment / detachment driver 63. It has moved in the direction of the base. For this reason, when the relative angle between the handle 3 and the magazine 50 ′ is narrowed, the bar-side protrusion 36 is engaged with the tapered surface of the plate-side protrusion 56 ′ of the second slide plate 55 ′, and the second slide plate is moved to the second slide plate 55 ′. The first and second attachment / detachment drivers 62 and 63 are moved in the base direction corresponding to the thicknesses of the first and second attachment / detachment drivers 62 and 63. As a result, the opening width of the launching opening 52 ′ becomes a width suitable for ejecting two wide binding needles 101 from the opening width in the initial state, so that two wide binding needles are formed at a time. A binding needle can be ejected to bind a document. When the clincher 41 attached to the base 4 is replaceable and a wide binding needle is used, the clincher 41 may be replaced with a clincher having a shape suitable for bending the needle portion. .

1 is a schematic cross-sectional view of a stapler according to a first embodiment. In the stapler of Example 1, it is a schematic sectional drawing which shows the state which drives out one binding needle. FIG. 3 is a schematic cross-sectional view illustrating a state in which a document is bound by three binding needles in the stapler according to the first exemplary embodiment. FIG. 4 is a schematic cross-sectional view showing a state in which a relative angle between a handle, a magazine, and a base is narrowed in order to drive out three binding needles in the stapler of FIG. 3. 6 is a schematic cross-sectional view of a stapler according to Embodiment 2. FIG. FIG. 6 is a front view and a side view of each driver in the stapler according to the second embodiment. 6 is a side view and a cross-sectional view of a guide frame in the stapler of Embodiment 2. FIG. In the stapler of Example 2, it is a schematic sectional drawing which shows a mode that a detachable driver is accommodated in the handle | steering-wheel front-end | tip part. In the stapler of Example 2, it is a schematic sectional drawing which shows the mode of the driver support mechanism at the time of driving out several binding needles. 6 is a schematic cross-sectional view of a stapler according to Embodiment 3. FIG. FIG. 10 is a schematic cross-sectional view illustrating a modified example of the stapler according to the third embodiment. 6 is a schematic cross-sectional view of a stapler according to Embodiment 4. FIG. FIG. 10 is a plan view and a cross-sectional view of each driver in the stapler according to the fourth embodiment when viewed from the base side. It is the top view and side view which looked at the state where each driver of Example 4 was piled up from the base side. FIG. 10 is a plan view and a cross-sectional view illustrating a state where a dial is attached to the stapler according to the fourth embodiment. In the stapler of Example 4, it is explanatory drawing for demonstrating the mode of the driver support mechanism at the time of driving out a several binding needle. FIG. 10 is a schematic cross-sectional view of a stapler according to a fifth embodiment.

Explanation of symbols

1, 1A, 1B, 1C, 1D, 1E Stapler 2 Magazine 3 Handle 4 Base 21, 51, 51 'Storage part 22, 52, 52' Launch port 23 Needle press 25, 55, 55 'Slide plate 26, 56, 56 'plate side protrusions 30, 60, 70, 80 Driver support mechanism 31 First driver 32 Second driver 35 Slide bar 36 Bar side protrusion 41 Clincher 42 Support shaft 58 Magazine base 61, 81 Fixed driver 62, 63 Removable driver 64 Guide projection 65 Guide frame 68 Driver support plate 71, 72, 73, 74, 82, 83 Rotating driver 75 Rotating shaft 76 Cam 84 Fixed shaft 85 Dial 87 Cam 88 Dial side cylinder portion 88b Rotating stay 100, 101 Binding needle 102 Document

Claims (10)

A magazine having a storage portion for storing the binding needle, a magazine having a discharge port for driving out the stored binding needle, a handle having a driver for driving the binding needle, and both ends of the binding needle punched from the discharge port In a stapler having a base with a clincher for bending, sandwiching the magazine, and pushing the handle toward the base, the binding needle stored in the magazine is driven out toward the clincher by the driver.
A plurality of the drivers;
A driver support mechanism that supports each driver selectively or simultaneously in a state in which the driver can be positioned at a binding needle ejection position facing the ejection port;
The stapler according to claim 1, wherein an opening width of the ejection opening can be changed to a width corresponding to a thickness of the driver positioned at the ejection position of the binding needle. In claim 1,
The stapler, wherein the driver support mechanism can be positioned at the binding needle launch position in a state where a plurality of the drivers are overlapped in the thickness direction. In claim 1 or 2,
It has an opening width changing mechanism capable of changing the opening width of the ejection opening so as to be a width corresponding to the thickness of the driver positioned at the ejection position of the binding needle. Stapler. In claim 3,
The opening width changing mechanism is
In the handle, a slide bar that moves in the thickness direction of the driver by an amount corresponding to the thickness of the stacked driver, with the tip abutting on the driver arranged to overlap the binding needle launch position,
In the magazine, a slide plate that seals a part of the ejection opening while being movable in the alignment direction of the binding needles;
A stapler comprising: a link mechanism that moves the slide plate to a position corresponding to the position of the slide bar to change the opening width of the launch port when the handle is pushed in and approaches the magazine. In claim 1,
The driver support mechanism includes a plurality of rotary drivers with different thicknesses that are rotatably attached to a rotary shaft,
A stapler, wherein the rotation shaft is rotated so that the selected rotation driver can be positioned at the binding needle launch position. In claim 1,
The driver support mechanism includes one fixed driver and a plurality of rotation drivers fixed to the binding needle launch position,
The plurality of rotary drivers are supported so as to be rotatable about a common axis, and can be positioned at a position overlapping the fixed driver in a thickness direction and at a retracted position. Stapler. In claim 5 or 6,
It has an opening width changing mechanism capable of changing the opening width of the ejection opening so as to be a width corresponding to the thickness of the driver positioned at the ejection position of the binding needle. Stapler. In claim 7,
The opening width changing mechanism is
In the handle, a cam having a protruding portion corresponding to the thickness of the rotary driver, and rotating with the rotation of the rotary driver;
In the handle, a slide bar that moves in the thickness direction of the driver by an amount corresponding to the thickness of the protruding portion by abutting the tip with the outer peripheral surface of the cam;
In the magazine, a slide plate that seals a part of the ejection opening while being movable in the alignment direction of the binding needles;
A stapler comprising: a link mechanism that moves the slide plate to a position corresponding to the position of the slide bar to change the opening width of the launch port when the handle is pushed in and approaches the magazine. In claim 4 or 8,
The stapler according to claim 1, wherein the link mechanism is an engagement between a bar-side protrusion protruding from the slide bar toward the magazine and a plate-side protrusion protruding from the slide plate. In any one of Claim 1 thru | or 9,
It has two magazines that can store binding needles of different thicknesses,
The two magazines are connected at one end so that the respective ejection openings are located at both ends, and are selected by rotating around the midpoint between the two ejection openings. A stapler characterized in that the ejection opening is arranged at a predetermined position where a binding needle can be ejected.

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