Stapler

Abstract

This stapler (1A) comprises: a body section (111) that has an insertion section (120) into which a stapling target is inserted and a driving section (4) which performs a stapling operation with respect to the stapling target inserted in the insertion section (120); and a detection section (100) that operates the driving section (4) upon detection of the stapling target and that can be attached to and detached from the body section (111).

Description

Stapler

[0001] The present disclosure relates to a stapler for stapling an object to be stapled with a needle.

[0002] Conventionally, staplers have been proposed that drive a needle into an object to be stapled, such as a stack of papers, and staple it. An electric stapler driven by a motor has a guide for abutting the tip of the object to be stapled. When the object to be stapled is inserted into the insertion port of the main body by the user, the front end surface of the object to be stapled abuts against the guide, and the guide moves backward, turning on the detection unit, generating a drive signal for driving the motor, and performing a stapling operation (see, for example, Patent Document 1).

[0003] Japanese Patent Application Laid-Open No. 2021-115765

[0004] Conventional staplers assume a stack of papers as the object to be stapled. When the object to be stapled is a stack of papers, the length from the edge of the stack of papers to the stapling position by the needle is approximately determined. Therefore, in conventional staplers, the attachment and detachment of the detection unit are not considered.

[0005] Therefore, when the object to be stapled is in a form called a blister pack, for example, and an attempt is made to staple the peripheral edge near the edge while avoiding the convex portion of the object to be stapled, the object to be stapled may not be detected during the operation of inserting the object to be stapled into the insertion portion.

[0006] Therefore, a stapler is provided that can detect the object to be stapled inserted into the insertion portion according to the form of the object to be stapled and perform a stapling operation.

[0007] According to an exemplary aspect of the present disclosure, a stapler includes a main body portion having an insertion portion into which an object to be stapled is inserted and a drive portion that performs a stapling operation on the object to be stapled inserted into the insertion portion, and a detection portion that activates the drive portion by detecting the object to be stapled and is detachable from the main body portion.

[0008] According to the present disclosure, when the detection unit is attached to the main body portion, in the operation of inserting the object to be stapled into the insertion portion, the object to be stapled is detected by the detection unit, and the stapling operation is performed.

[0009] According to this disclosure, by attaching a detection unit to the main body in a form corresponding to the object to be bound, the object to be bound is detected by the detection unit when the object to be bound is inserted into the insertion part, and the binding operation can be performed.

[0010] This is a side cross-sectional view showing an example of the stapler of this embodiment. This is a side view showing an example of the stapler of this embodiment. This is a front view showing an example of the stapler of this embodiment. This is a bottom view showing an example of the stapler of this embodiment. This is a perspective view showing an example of the stapler of this embodiment. This is an exploded perspective view showing an example of the stapler of this embodiment. This is a side view showing an example of the operation of the stapler of this embodiment. This is a side view showing an example of the operation of the stapler of this embodiment. This is a perspective view showing a modified example of the stapler of this embodiment. This is an exploded perspective view showing a modified example of the stapler of this embodiment.

[0011] Embodiments of the stapler of this disclosure will be described below with reference to the drawings.

[0012] <Example of the configuration of the stapler of this embodiment> Figure 1 is a side cross-sectional view showing an example of the stapler of this embodiment, Figure 2 is a side view showing an example of the stapler of this embodiment, Figure 3 is a front view showing an example of the stapler of this embodiment, Figure 4 is a bottom view showing an example of the stapler of this embodiment, Figure 5 is a perspective view showing an example of the stapler of this embodiment, and Figure 6 is an exploded perspective view showing an example of the stapler of this embodiment.

[0013] The stapler 1A of this embodiment includes a main body 111 having an insertion section 120 into which objects to be stapled are inserted, and a drive unit 4 that performs a stapling operation on the objects to be stapled inserted into the insertion section 120, and a detection unit 100 that activates the drive unit 4 when objects to be stapled are detected and is detachable from the main body 111.

[0014] The main body 111 includes a staple-feeding section 2 that ejects staples 10, and a binding section 3 that bends a pair of staple legs 10re of the staples 10 ejected by the staple-feeding section 2.

[0015] The stapler 1A has a staple-dispensing section 2 and a staple-binding section 3 that are connected so as to be rotatable relative to each other with a connecting shaft 110 as the pivot point. The staple-dispensing section 2 and the staple-binding section 3 open and close in directions toward and toward relative to each other, on the side opposite to the side connected by the connecting shaft 110.

[0016] In stapler 1A, the side where the staple-issuing section 2 and the stapling section 3 open and close is referred to as the front side, and the side where the staple-issuing section 2 and the stapling section 3 are connected by the connecting shaft 110 is referred to as the rear side. Furthermore, in stapler 1A, the side where the staple-issuing section 2 is located is referred to as the upper side, and the side where the stapling section 3 is located is referred to as the lower side. In addition, stapler 1A is defined as having a left side and a right side when viewed from the front.

[0017] The stapler 1A is configured to form staples 10 and then eject the formed staples 10. Before forming, the staples 10 are in a linear shape. The staples 10 before forming are also called unformed staples 10bf. After forming, the staples 10 have a pair of staple legs 10re that extend substantially parallel to each other from both sides of a staple crown (not shown). The staples 10 after forming are also called formed staples 10af. Multiple unformed staples 10bf are detachably connected along a direction intersecting their extension direction. This forms a connected staple 11. The stapler 1A is detachably equipped with a cartridge 12 that houses multiple connected staples 11 stacked together.

[0018] The staple-punching section 2 comprises a first opposing section 20 facing the binding section 3 and a first protrusion 21 projecting from the first opposing section 20 toward the binding section 3. The staple-punching section 2 has the first protrusion 21 on its front end side, and the first opposing section 20, which is concave, is formed on the rear side of the first protrusion 21.

[0019] The binding section 3 includes a second opposing section 30 that faces the staple-punching section 2, and a second protrusion 31 that projects from the second opposing section 30 toward the staple-punching section 2. The binding section 3 has the second protrusion 31 on its front end side, and a concave second opposing section 30 is formed on the rear side of the second protrusion 31.

[0020] In stapler 1A, an insertion section 120 is formed between the staple-issuing section 2 and the stapling section 3. The insertion section 120 has an entrance 121 between the front end of the staple-issuing section 2 and the front end of the stapling section 3. In stapler 1A, the insertion section 120 has an entrance 121 between the first protrusion 21 of the staple-issuing section 2 and the second protrusion 31 of the stapling section 3, and the entrance 121 connects to the space between the first opposing part 20 of the staple-issuing section 2 and the second opposing part 30 of the stapling section 3. When the staple-issuing section 2 and the stapling section 3 are moved in a direction that separates them relatively, the space between the first protrusion 21 and the second protrusion 31 of the insertion section 120 is configured as a gap into which the stapling position of the object to be stapled 200 can be inserted.

[0021] The insertion section 120 is provided with a wall section 130 on the side where the staple-punching section 2 and the binding section 3 are connected by a connecting shaft 110. The wall section 130 closes the space between the staple-punching section 2 and the binding section 3 without hindering the relative movement of the staple-punching section 2 and the binding section 3 with the connecting shaft 110 as a pivot point, thereby restricting the insertion position of the object to be bound.

[0022] The needle ejection unit 2 includes a needle feeding unit 5 that feeds the connected needle 11, a forming plate 6 that forms the unformed needle 10bf, and a driver plate 7 that ejects the formed needle 10af formed by the forming plate 6.

[0023] Furthermore, the needle ejection section 2 includes a pre-formed needle 10af ejected by the driver plate 7 and an ejection passage 8 through which the driver plate 7 that ejects the pre-formed needle 10af passes.

[0024] The stapling section 3 includes a clincher 32 that bends a pair of needle legs 10re of the pre-formed staple 10af that is ejected by the driver plate 7. The stapling section 3 has a clincher 32 on the second protrusion 31.

[0025] The drive unit 4 includes a first link 40 that drives the forming plate 6 and the driver plate 7, a second link 41 that drives the needle feed unit 5, and a motor 43 that drives the first link 40 and the second link 41, as well as a transmission mechanism such as a cam (not shown), to move the needle ejection unit 2 and the binding unit 3 in directions toward and toward relative to each other.

[0026] The needle feed unit 5 includes a first locking part 50 that locks onto the connecting needle 11. The first locking part 50 is rotatably attached to the needle feed unit 5 with respect to the first support shaft 51. The first locking part 50 moves in a direction toward the connecting needle 11 and in a direction toward away from the connecting needle 11 as it passes through the needle passage 23 by rotating with respect to the first support shaft 51.

[0027] Furthermore, the needle feeding unit 5 includes a first locking biasing unit 52 that biases the first locking unit 50. The first locking biasing unit 52 biases the first locking unit 50 in a direction that approaches the connecting needle 11 passing through the needle passage 23.

[0028] The needle feed unit 5 is supported so as to be movable along the needle passage 23 through which the connecting needle 11 passes. The needle feed unit 5 is also biased by the first feed biasing unit 53 in the direction of the feed of the connecting needle 11. The needle feed unit 5 is driven by the drive unit 4 via the first link 40 and the second link 41, and moves in the direction opposite to the feed direction of the connecting needle 11, and is also biased by the first feed biasing unit 53 to move in the direction of the feed of the connecting needle 11.

[0029] The first locking portion 50 is supported by the first support shaft 51 on its rear side along the feeding direction of the connecting needle 11, and extends diagonally upward toward the front side along the feeding direction of the connecting needle 11.

[0030] As a result, when the needle feed unit 5 moves in the feeding direction of the connecting needle 11, a force is generated that causes the first locking part 50, which is biased by the first locking biasing part 52, to rotate further around the first support shaft 51 as a pivot point, in a direction that brings it closer to the connecting needle 11 passing through the needle passage 23. Therefore, when the needle feed unit 5 moves in the feeding direction of the connecting needle 11, the first locking part 50 is locked to the connecting needle 11, and the connecting needle 11 is fed.

[0031] Furthermore, when the needle feed unit 5 moves in the opposite direction to the feeding direction of the connecting needle 11, a force is generated that rotates the first locking part 50 around the first support shaft 51 as a pivot point, moving it away from the connecting needle 11 passing through the needle passage 23. Therefore, when the needle feed unit 5 moves in the opposite direction to the feeding direction of the connecting needle 11, the locking of the first locking part 50 is released, the connecting needle 11 is not fed, and the needle feed unit 5 moves in the opposite direction to the feeding direction of the connecting needle 11.

[0032] The forming plate 6 is supported so as to be movable in a direction intersecting the direction in which the needle passage 23 extends. The direction of movement of the forming plate 6 is intersecting the direction in which the unformed needle 10bf extends and the direction in which the unformed needle 10bf is connected in the connecting needle 11 passing through the needle passage 23.

[0033] The forming plate 6 is provided with a first drive hole 61 into which a drive shaft 42, driven by the drive unit 4 via a first link 40, fits. The forming plate 6 is driven by the drive unit 4 via the first link 40 and the drive shaft 42, and moves in a direction intersecting the direction in which the unformed needle 10bf extends and the direction in which the unformed needle 10bf is connected. The first drive hole 61 is elongated in shape and extends along the direction of movement of the forming plate 6, and depending on the position of the drive shaft 42 driven by the drive unit 4 via the first link 40, the forming plate 6 can be switched between a state in which the forming plate 6 moves in conjunction with the drive shaft 42 and a state in which the forming plate 6 does not move in conjunction with the drive shaft 42.

[0034] The driver plate 7 is supported so as to be movable in a direction intersecting the direction in which the needle passage 23 extends. The direction of movement of the driver plate 7 is along the direction in which the needle leg portion 10re extends in the molded needle 10af, and is parallel to the direction of movement of the forming plate 6. The driver plate 7 is positioned with a gap of one needle width between it and the forming plate 6.

[0035] The driver plate 7 is provided with a second drive hole 71 into which the drive shaft 42 is inserted. The driver plate 7 is driven by the drive unit 4 via the first link 40 and the drive shaft 42, and moves along the direction in which the needle leg portion 10re extends in the molded needle 10af. The length of the second drive hole 71 along the direction of movement of the driver plate 7 is approximately equal to the diameter of the drive shaft 42, and the driver plate 7 moves in conjunction with the drive shaft 42 which is driven by the drive unit 4 via the first link 40.

[0036] The ejection passage 8 is provided on the first protrusion 21 and extends in a direction intersecting the needle passage 23.

[0037] The detection unit 100 includes a switch unit 101 and an operating unit 102 that operates the switch unit 101. The switch unit 101 is composed of, for example, a microswitch. The operating unit 102 is rotatably supported on the frame unit 100a of the detection unit 100 with the operating shaft 103 as a pivot point. The operating unit 102 extends to a position where one side of the operating shaft 103 protrudes into the insertion unit 120, and the other side extends to a position facing the switch unit 101. The operating unit 102 is biased away from the switch unit 101 by a biasing member 104.

[0038] The detection unit 100 refers to the position where the operating unit 102 is separated from the switch unit 101 as the standby position of the operating unit 102. When the operating unit 102 moves to the standby position, the detection unit 100 turns off the switch unit 101. The switch unit 101 being in the off state means that the motor 43 of the drive unit 4 is stopped.

[0039] The detection unit 100 defines the position where the operating unit 102 approaches the switch unit 101 and the switch unit 101 is turned ON as the operating position. The ON state of the switch unit 101 means that the motor 43 of the drive unit 4 is driven by a control circuit (not shown) provided on the circuit board 140.

[0040] When the object to be bound is inserted into the insertion section 120 and the operating section 102 is pressed against the object to be bound, the operating section 102 rotates around the operating shaft 103 as a pivot point, and the switch section 101 turns on. As a result, the detection section 100 detects contact with the object to be bound by the movement of the object along the insertion direction of the object to be bound relative to the insertion section 120.

[0041] The detection unit 100 has a detection position P100 of the object to be bound 200 in the insertion section 120. Since the detection unit 100 is configured to detect the object to be bound by the movement of the operating section 102 which is pressed by the object to be bound, the detection position P100 is defined by the operating section 102, and the detection position forming section 102a is formed at the part of the operating section 102 that protrudes into the insertion section 120.

[0042] In order to facilitate the attachment and detachment of the detection unit 100 to and from the main body unit 111 from below the main body unit 111, the detection position forming unit 102a is divided into left and right parts. The interval between the detection position forming units 102a is a length that allows the binding part 3 to pass through.

[0043] The stapler 1A includes a support unit 105 that supports the detection unit 100. The support unit 105 is, for example, detachably attached to the binding part 3. Further, the stapler 1A includes an attachment unit 106 to which the support unit 105 is attached. The attachment unit 106 is provided, for example, at the bottom of the binding part 3 which is the bottom of the main body unit 111.

[0044] The support unit 105 is attached to the attachment unit 106, for example, by tightening a screw 105a, and can be removed from the attachment unit 106 by loosening the screw 105a. Thereby, the detection unit 100 is detachably attached to the main body unit 111 via the support unit 105 and the attachment unit 106. Further, when the support unit 105 is attached to the attachment unit 106, the operating unit 102 projects into the insertion unit 120 to form the detection position P100.

[0045] The support unit 105 includes a position adjustment unit 107 that supports the detection unit 100 so as to be slidable along the insertion direction of the binding object inserted into the insertion unit 120. The position adjustment unit 107 includes a long hole part 107a formed in the frame part 100a of the detection unit 100 and a position fixing part 107b that fixes the position of the frame part 100a with respect to the support unit 105. The long hole part 107a extends along the insertion direction of the binding object with respect to the insertion unit 120. The position fixing part 107b is composed of, for example, a screw that can be fastened to the support unit 105.

[0046] The detection unit 100 moves along the insertion direction of the binding object with respect to the insertion unit 120 within the range of the length of the long hole part 107a. Further, the detection unit 100 fixes the position along the insertion direction of the binding object with respect to the insertion unit 120 by fastening the position fixing part 107b composed of a screw. Thereby, the detection position P100 of the detection unit 100 is switched along the insertion direction of the binding object with respect to the insertion unit 120 between the vicinity inside the entrance 121 and the vicinity of the wall part 130.

[0047] <Example of Stapler Operation in this Embodiment> Figures 7 to 9 are side views showing an example of the operation of the stapler in this embodiment. The stapler 1A can loosen the position fixing part 107b composed of a screw and move the detection part 100 along the insertion direction of the object to be stapled with respect to the insertion part 120. Also, by fastening the position fixing part 107b, the position of the detection part 100 can be fixed.

[0048] As a result, in the stapler 1A, the detection position P100 of the detection part 100 is switched according to the stapling position P200 of the object to be stapled 200. That is, in the stapler 1A, the length from the position where the first convex part 21 of the needle punching part 2 and the second convex part 31 of the stapling part 3 face each other to the detection position P100 is switched according to the length from the edge part 201 of the object to be stapled 200 to the stapling position P200.

[0049] For example, when the object to be stapled 200 is in a form called a blister pack in which a resin cover with a convex part 202 for storing an article is formed on a paper mount, and the stapling position P200 is near the edge part 201 of the object to be stapled 200, as shown in Fig. 7, the detection part 100 is moved along the insertion direction of the object to be stapled with respect to the insertion part 120 so that the detection position P100 is near the inside of the inlet 121, and the position of the detection part 100 is fixed.

[0050] Further, the stapler 1A includes, on the needle punching part 2, a first opposing part 20 facing the stapling part 3 and a first convex part 21 protruding from the first opposing part 20 in the direction of the stapling part 3, whereby a first opposing part 20 forming a concave shape is formed on the rear side of the first convex part 21.

[0051] Furthermore, the stapler 1A includes, on the stapling part 3, a second opposing part 30 facing the needle punching part 2 and a second convex part 31 protruding from the second opposing part 30 in the direction of the needle punching part 2, whereby a second opposing part 30 forming a concave shape is formed on the rear side of the second convex part 31.

[0052] As a result, when the object to be stapled 200 is in the form of a blister pack, the stapler 1A can staple the object to be stapled 200 with the staples 10 by inserting the object to be stapled 200 into the insertion section 120 until the convex portion 202 faces the recess formed by the first opposing portion 20 or the recess formed by the second opposing portion 30.

[0053] Therefore, if the object to be bound 200 is in a form called a blister pack, and the binding position P200 is located at a predetermined distance from the edge 201 of the object to be bound 200, such as in the area between a plurality of convex portions 202, then, as shown in Figure 8, the detection unit 100 is moved along the insertion direction of the object to be bound relative to the insertion portion 120 so that the detection position P100 is, for example, near the midpoint between the entrance 121 and the wall portion 130, and the position of the detection unit 100 is fixed.

[0054] Furthermore, if the binding position P200 is to be located in the back, away from the edge 201 of the object to be bound 200, as shown in Figure 9, the detection unit 100 is moved along the insertion direction of the object to be bound relative to the insertion unit 120 so that the detection position P100 is near the wall 130, and the position of the detection unit 100 is fixed.

[0055] As described above, after setting the detection position P100 of the detection unit 100, the operation of stapling the object to be stapled 200 with the stapler 1A is as follows. That is, the object to be stapled 200 is placed in the insertion section 120 between the staple dispensing section 2 and the staple section 3 of the stapler 1A.

[0056] When the object to be bound 200 is placed between the staple-issuing unit 2 and the binding unit 3, the object to be bound 200 presses the operating unit 102 of the detection unit 100. When the operating unit 102 of the detection unit 100 is pressed, the operating unit 102 moves to the operating position. When the operating unit 102 moves to the operating position, the switch unit 101 turns ON. When the switch unit 101 turns ON, the motor 43 of the drive unit 4 is driven by a control circuit (not shown) provided on the circuit board 140.

[0057] When the motor 43 of the drive unit 4 is driven, the stapler 1A moves the staple-issuing unit 2 and the staple-binding unit 3 in a direction that brings them relatively closer together, and the object to be stapled 200 is held between the staple-issuing unit 2 and the staple-binding unit 3.

[0058] Furthermore, in the stapler 1A, the motor 43 of the drive unit 4 drives the drive shaft 42 via the first link 40, and the driver plate 7 moves in conjunction with the drive shaft 42. As the driver plate 7 moves, the stapler 1A ejects the pre-formed staples 10af.

[0059] Furthermore, the stapler 1A bends the pair of needle legs 10re of the pre-formed staple 10af, which is ejected by the operation of the driver plate 7, by pressing them against the clincher 32 of the stapling section 3, thereby stapling the object to be stapled 200.

[0060] Furthermore, in the stapler 1A, the motor 43 of the drive unit 4 drives the drive shaft 42 via the first link 40, and the forming plate 6 moves in conjunction with the drive shaft 42. As the forming plate 6 moves, the next unformed staple 10bf is formed in the stapler 1A.

[0061] Furthermore, when the motor 43 of the drive unit 4 is driven, the second link 41 is driven via the first link 40, causing the staple feed unit 5 to move in the opposite direction to the feeding direction of the connecting staples 11, and is also biased by the first feed biasing unit 53 to move in the feeding direction of the connecting staples 11.

[0062] In the stapler 1A, the staple feeding unit 5 moves in the feeding direction of the connecting staple 11, so that the connecting staple 11 is fed until the molded staple 10af reaches the ejection position by the driver plate 7.

[0063] <Examples of the operation and effects of the stapler of this embodiment> Conventionally, staplers have been proposed that are equipped with a detection unit that detects the object to be stapled in the insertion part into which the object to be stapled is inserted, and that perform a staple operation when the detection unit detects the object to be stapled. Conventional staplers assume that the object to be stapled is a stack of paper. When the object to be stapled is a stack of paper, the length from the edge of the stack of paper to the stapled position by the staple is approximately fixed. For this reason, the attachment and detachment of the detection unit is not considered in conventional staplers. Furthermore, conventional staplers are not designed to allow the detection position by the detection unit to be changed according to the shape of the object to be stapled.

[0064] For example, in the case of a blister pack, the object to be bound 200 can be bound with staples 10 around the peripheral edge near the edge 201, avoiding the convex portion 202 of the object to be bound 200. In this case, the object to be bound 200 is not inserted all the way to the wall of the insertion part, and therefore the object to be bound 200 cannot be detected by the detection unit provided near the wall of the insertion part.

[0065] In contrast, stapler 1A can be fitted with a detection unit 100 whose detection position P100 can be switched along the insertion direction of the object to be stapled into the insertion section 120. This allows stapler 1A to change the detection position P100 by the detection unit 100 according to the length from the edge 201 of the object to be stapled 200 to the stapled position P200.

[0066] Therefore, for example, if the object to be bound 200 is in a form called a blister pack, and the peripheral edge near the edge 201 of the object to be bound 200 is to be bound with staples 10, as shown in Figure 6, by setting the detection position P100 of the detection unit 100 accordingly, the binding operation can be performed by inserting the object to be bound 200 into the insertion unit 120 between the staple dispensing unit 2 and the binding unit 3.

[0067] Therefore, the stapler 1A can perform a stapling operation by setting the detection position P100 of the detection unit 100 according to the shape of the object to be stapled 200, and then inserting the object to be stapled 200 into the insertion unit 120 between the staple dispensing unit 2 and the stapling unit 3.

[0068] On the other hand, there are cases where the detection unit 100 may obstruct the insertion of the stapled object. In such cases, the stapler 1A can be equipped with other switches, such as a foot switch, for executing the stapled operation, and the detection unit 100 can be removed from the main body 111, allowing the stapled operation to be performed on stapled objects of various shapes.

[0069] <Modified Examples of the Stapler of This Embodiment> Figure 10 is a perspective view showing a modified example of the stapler of this embodiment, and Figure 11 is an exploded perspective view showing a modified example of the stapler of this embodiment. In stapler 1B of the modified example of this embodiment, parts with the same configuration as stapler 1A are denoted by the same reference numerals and described accordingly.

[0070] In the modified stapler 1B of this embodiment, the detection unit 100 is provided in the stapling unit 3. The detection position forming unit 102a of the detection unit 100 is connected integrally on the left and right sides. As a result, even if the object to be stapled has a narrow width at the part inserted into the insertion unit 120, the object to be stapled will come into contact with the detection position forming unit 102a.

[0071] The detection unit may also be a pressure sensor that detects contact with the object to be bound 200 by changes in pressure.

[0072] Although various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to these examples. It is clear to those skilled in the art that various modifications or alterations can be conceived within the scope of the claims, and these will naturally also fall within the technical scope of the present invention. Furthermore, the components of the above embodiments may be combined in any way without departing from the spirit of the invention.

[0073] This application is based on a Japanese patent application (Patent Application No. 2024-192235) filed on October 31, 2024, the contents of which are incorporated by reference within this application.

[0074] 1A, 1B... Stapler 2... Staple ejection section 20... First opposing section 21... First protrusion 23... Staple passage 3... Binding section 30... Second opposing section 31... Second protrusion 32... Clincher 4... Drive section 40... First link 41... Second link 42... Drive shaft 43... Motor 5... Staple feeding section 50... First locking section 51... First support shaft 52... First locking biasing section 53... First feeding biasing section 6... Forming plate 61... First drive hole section 7... Driver plate 71... Second drive hole section 8... Ejection passage 100... Detection section 101... Switch section 102... Operating section 102a... Detection position forming section 103... Operating shaft 104... Biasing member 105... Support section 105a... Screw 106... Mounting section 107... Position adjustment section 107a... Slotted hole section 107b... Position fixing section P100... Detection position 110... Connection shaft 111... Main body section 120... Insertion section 121... Entrance 130... Wall section 140... Substrate 200... Object to be bound 201... Edge section 202... Convex section

Claims

1. A stapler comprising a main body having an insertion section into which objects to be stapled are inserted, and a drive unit that performs a stapling operation on the objects to be stapled inserted into the insertion section, and a detection unit that activates the drive unit upon detection of the objects to be stapled and is detachable from the main body.

2. The stapler according to claim 1, wherein the detection unit has a detection position for the object to be stapled in the insertion unit.

3. The stapler according to claim 2, wherein the detection position of the detection unit is switched along the insertion direction of the object to be stapled that is inserted into the insertion unit.

4. The stapler according to claim 1, wherein the detection unit detects contact with the object to be stapled.

5. The stapler according to claim 4, wherein the detection unit detects contact with the object to be stapled by moving along the insertion direction of the object to be stapled with respect to the insertion unit.

6. The stapler according to claim 1, comprising a support portion for supporting the detection portion, wherein the support portion is detachably attached to the main body portion.

7. The stapler according to claim 6, wherein the support portion supports the detection portion so that it can slide along the insertion direction of the object to be stapled that is inserted into the insertion portion.

8. The stapler according to claim 7, wherein the support portion is provided with a position adjustment portion that supports the detection portion so that it can slide along the insertion direction of the object to be stapled that is inserted into the insertion portion.

9. The stapler according to claim 8, wherein the main body portion comprises a mounting portion to which the support portion is attached, and the detection portion comprises an operating portion that forms a detection position in the insertion portion when the support portion is attached to the mounting portion.

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