JP6075141B2 - Binding machine - Google Patents

Description

  The present invention relates to a binding machine referred to as a so-called stapleless stapler that does not use a metal needle among binding machines that integrally bind the ends of a plurality of stacked sheets.

  Conventionally, as this type of binding machine, a punching blade that forms a punching hole while forming cutting and cutting pieces on a plurality of sheets, and a front end side of the cutting and cutting piece that is provided adjacent to the punching blade are locked. A cutting blade for forming a cutting hole for the cutting, a base portion for holding the cutting blade and the cutting blade, and a punch base disposed on the base portion via a paper insertion gap. Is known (see, for example, Patent Document 1). In this binding machine, the cutting blade held on the base portion and the cutting blade are passed through the paper inserted into the paper insertion gap, and the leading end side of the cut and raised piece cut and raised on the punch base side Is engaged with the window of the cutting blade, and the cutting blade and the punching blade are pulled out so as to return to the base portion side, thereby causing the cut and raised pieces to penetrate the cut hole. The sheets are bound together.

  In such a binding machine, an insertion member such as a cutting blade or an inner cam is indispensable in order to insert the cut and raised piece into the window of the cutting blade when the cutting blade and the cutting blade penetrate into the paper. . In the conventional binding machine, the cutting blade and the cutting blade are integrated with each other, and the insertion member is operated in the forward / reverse direction in conjunction with the movement of the cutting blade in the forward / backward direction. It has become. That is, the insertion member operates in the forward direction along with the entering operation of the cutting blade, and the cutting blade operates in the reverse direction along with the extraction operation that is symmetrical to the entering operation. In other words, the insertion member moves symmetrically around the most penetrating position where the cutting blade penetrates most deeply.

  Therefore, there is a situation in which the tip of the cut and raised piece must be pressed against the edge of the window of the cutting blade and inserted into the window while forcibly curving the tip of the cut and raised piece. There is a problem that an excessive force is applied to the piece and it is torn or the energy required for the operation is increased.

JP 2010-228451 A

  SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides a binding machine capable of binding sheets reliably without the problem that an excessive force is applied to a cut and raised piece and the energy required for operation increases. The purpose is to do.

  The present invention employs the following configuration in order to solve the above-described problems. That is, a binding machine according to the present invention relates to a punching blade that forms a punching hole while forming cutting and raising pieces on a plurality of sheets, and a tip side of the cutting and raising piece that is provided adjacent to the punching blade. A cutting blade for forming a cut hole for stopping, a base portion for holding the cutting blade and the cutting blade, and a punch base disposed in the base portion with a paper insertion gap interposed therebetween. The leading edge side of the cut and raised piece cut and raised to the punch base side through the paper inserted in the paper insertion gap through the punching blade and the cutting blade held by the base portion is cut. In the state of being engaged with the window of the cutting blade, the cutting blade and the punching blade are pulled out so as to return to the base portion side, thereby penetrating the cut and raised piece through the cut hole and feeding the paper. The cut and raised pieces are inserted into the window of the cutting blade. Insertion member, a retraction position provided separately from the insertion member and retracted when the cut and raised piece is inserted into the window of the cutting blade, and a constraint for keeping the cut and raised piece inserted in the window And a restraining member capable of taking a position, wherein the restraining member is provided separately from the cutting blade.

  Here, the “paper” may be any material as long as it is an object to be punched, and includes paper, plastic, metal, or wood. Moreover, it is not restricted to a thin sheet-like thing.

  A preferred embodiment of the insertion member includes an inner cam held by the punching blade. As the insertion member, an inner cam that is held by a portion other than the extraction blade and operates without interlocking with the extraction blade, or the extraction blade itself may serve as the insertion member. Further, the insertion member may be other than the one that inserts a sheet by a rotating operation.

  Preferably, the restraining member is held at the restraining position by an elastic urging force, and temporarily retracts to the retracted position by using an operating force when the cut and raised piece is inserted into the window.

  The restraining member is configured to move in the thickness direction so that the restraining position and the retracted position can be taken, and the restraining member restrains the cut-and-raised piece at its rotating end. It is done.

  As a specific aspect of the restraining member, the restraining member main body disposed on the punch base side with the rotation end facing the gap, an attachment portion for holding the base end of the restraining member main body, A spring retainer provided at the mounting portion and disposed opposite to the restraining member main body, a spring held by the spring retainer to bias the restraining member main body in the restraining position direction, and against the biasing force of the spring What provided the stopper part which latches the said restraint member main body in a restraint position is mentioned.

  The restraint member main body is one that moves from the restraint position to the retracted position by elastic deformation in its thickness direction, and preferably has a thickness dimension of the rotation end larger than that of other portions. .

  As another binding machine according to the present invention, a punching blade for forming a punching hole while forming cutting and raising pieces on a plurality of sheets, and a leading end side of the cutting and raising piece provided adjacent to the punching blade are provided. A cutting blade for forming a cut hole for locking, a base portion for holding the cutting blade and the cutting blade, and a punch base disposed on the base portion through a paper insertion gap. The leading edge side of the cut and raised piece cut and raised to the punch base side through the paper inserted in the paper insertion gap through the punching blade and the cutting blade held by the base portion In the state of being engaged with the window of the cutting blade, by pulling out the cutting blade and the punching blade so as to return to the base portion side, the cut and raised piece penetrates the cut hole and the paper The cutting and raising piece is inserted into the window of the cutting blade. And a retraction position that is provided separately from the insertion member and retracts when the cut and raised piece is inserted into the window of the cutting blade, and a constraint for keeping the cut and raised piece inserted in the window A restraining member that can take a position, and the restraining member is provided on the cutting blade and can move between the retracted position and the restraining position by moving in the thickness direction of the cutting blade. It is characterized by being.

  An example of the restraining member is one provided at the edge of the cutting blade on the front end side of the cutting blade and retracting in the thickness direction only when the cut and raised piece is inserted into the window.

  The cutting blade retracts in a direction that reduces resistance only when the cut and raised piece is inserted into the window, and the cutting blade also serves as the restraining member. It is done.

  Since the present invention is configured as described above, a binding machine is provided that can bind sheets reliably without the problem of excessive force applied to the cut and raised pieces, and the problem of increased energy required for operation. can do.

1 is an overall perspective view illustrating a binding machine according to an embodiment of the present invention. The top view which shows the binding machine of the embodiment. The top view which shows the principal part of the binding machine and paper of the embodiment. XX sectional drawing of FIG. Action explanatory drawing shown in the YY sectional view of FIG. Action explanatory drawing shown in the YY sectional view of FIG. The disassembled perspective view which cuts and shows the principal part of the binding machine of the embodiment. The side view which shows the principal part of the binding machine of the embodiment. The top view which shows the principal part of the binding machine of the embodiment. The top view which shows the punching hole and cut hole of the embodiment. Action | operation explanatory drawing of the binding machine of the embodiment. Action | operation explanatory drawing of the binding machine of the embodiment. Action | operation explanatory drawing of the binding machine of the embodiment. Action | operation explanatory drawing of the binding machine of the embodiment. Action | operation explanatory drawing of the binding machine of the embodiment. Action | operation explanatory drawing of the binding machine of the embodiment. Action | operation explanatory drawing of the binding machine of other embodiment of this invention. The action explanatory view of the binding machine of further another embodiment of the present invention.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 to 16, the binding machine 1 according to the present embodiment forms punch holes P1 and cut holes P2 in a plurality of sheets of paper P, and cut and raised pieces cut from the punch holes P1. By inserting P5 into the cut hole P2, the booklet B can be made by binding the plurality of sheets P to each other.

  As shown in FIGS. 3 and 4, the booklet B is formed by bundling a plurality of sheets P, and these sheets P are joined to each other at a joint portion P3 set at a corner portion P4. Yes. The joining portion P3 includes a punching hole P1 formed in each paper P by a punching blade 32 penetrating from the one surface Pa side of the paper P, and a lifting hole formed in each paper P adjacent to the punching hole P1. It is composed of a cut hole P2 and a cut and raised piece P5 cut and raised from the punching hole P1 to the other surface Pb side of the paper P. Then, by leading the leading end P51 portion of the cut and raised piece P5 through the cut hole P2 to the one surface Pa side of the sheet P, the corners P4 of the plurality of sheets P are joined to each other. Yes. 3 and 4 show a mode in which the corner P4 of the paper P is inserted toward the binding machine 1, the edge of the paper P may be inserted toward the binding machine 1 and bound. Of course it is good. Further, in the vicinity of the base end P52 of the cut and raised piece P5 in the paper P, an escape portion P6 for suppressing tearing is formed. The escape portion P6 is a slit-shaped member extending from both sides of the base end P52 of the cut and raised piece P5. When the cut and raised piece P5 is inserted into the cut hole P2, the escape portion P6 extends to the base end P52 of the cut and raised piece P5. This is to alleviate stress concentration.

  As shown in FIGS. 3 and 4, the cut and raised piece P5 has a shape in which the distal end swells, specifically, an arrow shape as a whole, and a proximal region on the proximal end P52 side with the boundary P53 interposed therebetween. P54 is provided, and a tip region P55 is provided on the tip P51 side.

  The punching hole P1 has a size and shape corresponding to the cut and raised piece P5. Immediately after drilling with the punching blade 32, the punching hole P1 has a slit shape corresponding to the shape of the punching blade 32 as shown in FIG. After the cut and raised piece P5 is cut and raised, it is an arrow-shaped space corresponding to the shape of the cut and raised piece P5 as shown in FIG.

  As shown in FIGS. 3 and 10, the cut hole P2 includes a first slit P21 for mainly engaging the cut and raised piece P5, and a left-right direction extending from the middle of the first slit P21 toward the punch hole P1. And a second slit P22 that makes a pair.

  The binding machine 1 used when binding the paper P in this way will be described with reference to FIGS. 1 to 3, FIGS. 5 to 9, and FIGS. 11 to 16.

  As shown in FIGS. 1 to 3, 5 to 9, and FIGS. 11 to 16, the binding machine 1 is formed by punching a punching hole P <b> 1 while forming cut and raised pieces P <b> 5 on a plurality of sheets P. A blade 32, a cutting blade 33 provided adjacent to the punching blade 32 for locking the tip P51 side of the cut and raised piece P5, and the punching blade 32 and the cutting blade The base part 2 is a main body for holding the body 33, and the punch base 4 disposed in the base part 2 via a paper insertion gap 35. An operation lever 5 is rotatably attached to the base portion 2, and a drive plate 61 of a drive mechanism 6 connected to the operation lever 5 is accommodated in the base portion 2. Furthermore, the binding machine 1 according to the present embodiment includes an inner cam 34 that is an insertion member for inserting the cut and raised piece P5 into the window D3 of the cutting blade 33, and a cut and raised piece that is provided separately from the inner cam 34. A restraining member that can take a retracted position (S) for retracting when P5 is inserted into the window D3 of the cutting blade 33 and a restraining position (R) for keeping the cut and raised piece P5 inserted in the window D3. 7 is provided.

  As shown in FIGS. 1 to 3, 5, 6, and 11 to 16, the base portion 2 includes a base frame 21 having a space in which the slide member 31 and the drive plate 61 are disposed. The base cover 22 is fitted on the lower side of the base frame 21.

  As shown in FIGS. 1 to 3, 5, 6, and 11 to 16, the base frame 21 includes a front housing F that forms an upward surface F <b> 14 of the base portion 2, and an upper portion of the operation lever 5. And a rear housing R that forms a handle portion that is used when operating the operation lever 5 and is integrally formed of synthetic resin.

  As shown in FIGS. 1 to 3, 5, 6, and 11 to 16, the front housing F includes a top wall F <b> 1, a front wall F <b> 2 depending from the front edge of the top wall F <b> 1, It consists of left and right side walls F3 depending from the left and right side edges of the top wall F1, and has a space for accommodating the blade unit 3 therein. The ceiling wall F1 has an opening F11 through which the punching blade 32 and the cutting blade 33 pass. On the lower surface side of the ceiling wall F1, a bearing portion (not shown) provided near the edge of the opening F11 for receiving a shaft 341 of an inner cam 34 described later, and an inner cam 34 provided adjacent to the bearing portion. A locking wall F13 and a locking pin F15 for locking the arm 344 are provided. A gap 35 for inserting the paper P is formed between the upward surface F14 which is the upper surface of the top wall F1 and the downward surface 414 of the punch table 4. In the present embodiment, the top wall F1 is provided with a rib-like protrusion F16 for bringing the paper P toward the punch table 4 side. The two projecting portions F16 forming a pair are arranged substantially in parallel to the back side region of the gap 35 for paper insertion, and are formed integrally with the base frame 21. A rail groove F21 for guiding the slide member 31 in the vertical direction is provided in the center of the front wall F2. The side wall F3 is provided with a rail groove F31 for guiding the slide member 31 in the vertical direction on the front side, and a long hole F32 for guiding the drive shaft 36 in the vertical direction at the center. Yes. An operation lever 5 is attached to the side wall F3 via a support shaft 53 so as to be rotatable in the vertical direction.

  As shown in FIGS. 1 to 3, 5, 6, and 11 to 16, the rear housing R has a shape suitable for placing a hand, and includes a coil spring S <b> 1 and the drive plate. A space for accommodating 61 is provided. Specifically, the rear housing R includes a front wall R1 rising from the rear end of the top wall F1 of the front housing F, a ceiling wall R2 extending rearward from the upper end of the front wall R1, and the ceiling wall R2. Left and right side walls R3 hanging from both left and right ends, and a rear wall R4 hanging from the rear end of the top wall R2. The top wall R2 cooperates with the front wall R1 to hold the upper end of the coil spring S1, and the punch base 4 and the base cover 22 are provided on the rear side of the spring holding part R21. A mounting portion R22 for mounting, and an inclined portion R23 for handling, which is provided on both sides of the mounting portion R22 and gradually falls rearward. A drive plate 61 is rotatably attached to the side wall R3 via a shaft 62. The rear wall R4 is provided with an insertion hole R41 for inserting an option such as a strap.

  As shown in FIGS. 1, 5, 6, and 11 to 16, the base cover 22 is externally fitted to the lower side of the base frame 21, and is provided at the front end portion and the rear end portion, respectively. The engaging portions 23a and 23b are engaged with the base frame 21 and are screwed to the mounting portion R22 of the base frame 21 using bolts 20 in the intermediate portion. The base cover 22 is provided with a window 24 for avoiding interference with the operation lever 5.

  The blade unit 3 having the punching blade 32 and the cutting blade 33 is housed in the base portion 2 formed as described above.

  As shown in FIGS. 5 to 9 and FIGS. 11 to 16, the blade unit 3 is guided by rail grooves F21 and F31 of the base frame 21, and can be moved up and down while maintaining a vertical posture, A punching blade 32 attached to the slide member 31, a cutting blade 33 disposed adjacent to the punching blade 32, and an initial posture (S) which is disposed inside the punching blade 32 and fits in the punching blade 32. Between the inner cam 34 rotatably supported by the slide member 31 via the shaft 341 and the initial posture (S). And a coil spring S2 for rotating and biasing the inner cam 34 in the returning direction.

  As shown in FIGS. 5 to 8 and FIGS. 11 to 16, the slide member 31 has a block shape including a protrusion 311 that engages with rail grooves F <b> 21 and F <b> 31 of the base frame 21 so as to be slidable in the vertical direction. And is connected to the drive mechanism 6 via a drive shaft 36. That is, the drive shaft 36 is engaged with a long hole 614 provided at the tip of the drive plate 61 of the drive mechanism 6. The slide member 31 is a box-shaped member opened upward, and can accommodate the lower half of the punching blade 32 and the cutting blade 33.

  The cutting blade 33 forms a cut hole P2 composed of slits P21 and P22 having a getter shape as shown in FIGS. 3 and 10, and punches and bends a single sheet metal material. It is made by. As shown in FIGS. 2, 3, 5 to 9, and FIGS. 11 to 16, the cutting blade 33 includes a first blade D <b> 1 for forming the first slit P <b> 21 and the first blade D <b> 1. And a second blade D2 for forming a second slit P22 extending in the direction of the punching hole from the middle of the blade D1.

  The first blade D1 includes a window D3 for allowing the cut and raised piece P5 punched out from the paper P to pass therethrough. The edge D4 on the front end side of the window D3 is for engaging with the cut and raised piece P5 inserted into the window D3 and drawing the cut and raised piece P5 into the cut hole P2. It is formed by winding and bending a plate-like material that continues to the edge D4 on the distal end side of D3 and protrudes toward the proximal end side to the distal end side of the cutting blade 33. Reference sign D <b> 5 is a relief hole for inverting the tip of the folded plate-shaped material by 180 degrees or more so as not to float from the cutting blade 33.

  The second blade D2 is formed by bending from both side edges of the window D3 of the first blade D1 to the punching blade 32 side. And an inclined portion D22 that comes into contact with the paper P after D21. Specifically, each of the second blades D2 of the present embodiment has a central portion side of the window D3 protruding in the front end direction of the cutting blade 33 in a front view, and the punching blade 32 side of the cutting blade 33 in a side view. It is configured to protrude in the distal direction. In other words, each of the second blades D2 has the pointed portion D21 farthest from the first blade D1 positioned on the front end side of the cutting blade 33 in order to minimize the resistance applied when entering the paper P. In addition, the inclined portion D22 is gradually inclined from the tip end portion D21 toward the proximal end side of the cutting blade 33 in the first blade D1 side direction.

  The punching blade 32 forms an arrowhead-shaped cut and raised piece P5 on a sheet P as shown in FIGS. 3 and 10, and is made by punching and bending a single sheet metal material. ing. 2, 3, 5 to 9, and 11 to 16, the punching blade 32 includes a blade body D <b> 7 for punching a punching hole P <b> 1 in the paper P, and a slit-shaped escape portion in the paper P. And an auxiliary blade D8 for forming P6. In the internal space of the punching blade 32, an inner cam 34 for inserting the cut and raised piece P5 into a window D3 provided in the cutting blade 33 is provided. Reference sign D9 is an opening for preventing interference with the inner cam 34.

  As shown in FIGS. 2, 3, 5 to 9, and 11 to 16, the inner cam 34 has a shaft 341 at the base end and the cut and raised piece P <b> 5 at the tip to the cutting blade 33. A push-out portion 343 for insertion into the provided window D3 is provided, and the shaft 341 is supported by the punching blade 32 and the slide member 31. An arm 344 for rotating the inner cam 34 protrudes from the base end of the inner cam 34. The inner cam 34 is set so that the upper surface of the arm 344 contacts the lower edge of the locking pin F15 provided on the base frame 21 when the slide member 31 moves upward. Further, after the contact, the slide member 31 further moves upward, whereby the base cam 341 is supported by the bearing portion provided in the base frame 21 and the inner cam 34 is brought into the rotation posture (K). It is comprised so that it may rotate to. That is, after the punching hole P1 is formed in the paper P, the inner cam 34 is configured to rotate in the direction of the cutting blade 33 while pressing the cut and raised piece P5.

  The blade unit 3 configured as described above is moved upward via the drive mechanism 6.

  As shown in FIGS. 5, 6, 8, and 11 to 16, the drive mechanism 6 urges the blade unit 3 to reciprocate between a standby position and a drilling position. 61, a lever plate 51 for transmitting an operation force to the drive plate 61, and a coil spring S1 for returning the drive plate 61 to the initial position when the operation force from the lever plate 51 is de-energized. Consists of the subject.

  As shown in FIGS. 5, 6, 8, and 11 to 16, the drive plate 61 is pivotally attached to the rear housing R of the base portion 2 via a shaft 62, and the blade is formed at the distal end portion. The unit 3 is configured to be energized. Specifically, the drive plate 61 is a metal plate that includes a top wall 611 and left and right side walls 612 that hang from the left and right side edges of the top wall 611. The top wall 611 is provided with a spring holding portion 613 for holding a coil spring S1 disposed between the top wall 611 and the top wall F1 of the rear housing R of the base frame 21. The drive plate 61 is biased downward by the coil spring S1. A long hole 614 for guiding the drive shaft 36 penetrating through the blade unit 3 is provided at the front end of the left and right side walls 612, that is, at the tip of the drive plate 61. The long hole 614 extends in a direction orthogonal to the advancing / retreating direction of the blade unit 3, and the drive shaft 36 is inserted so as to be slidable and rotatable. Further, both ends of the drive shaft 36 are slidably inserted into the long holes F32 provided in both side walls F3 of the base portion 2.

  As shown in FIGS. 1, 5, 6, and 8, the operation lever 5 includes a metal lever plate 51 and a resin lever cover 52 that is attached to the outside of the lever plate 51. .

  The lever plate 51 is formed by bending a sheet metal material, and has a bottom wall 511 and side walls 512 rising from both side edges of the bottom wall 511. The side wall 512 includes a biasing shaft 54 at a position displaced from the support shaft 53 of the operation lever 5. The urging shaft 54 is pivotally attached to the intermediate portion of the drive plate 61.

  The lever cover 52 has a shape suitable for putting on a hand, and has a recess 521 in the vicinity of the support shaft 53 of the operation lever 5.

  As shown in FIGS. 1 to 3, 5 to 7, and FIGS. 11 to 16, the punch base 4 cooperates with the punching blade 32 and the cutting blade 33 to punch a hole P <b> 1 and cut into the paper P. A punch plate 41 for punching the hole P2 and a top frame 42 having a flat box shape disposed on the punch plate 41 and fixed to the base portion 2 are provided.

  As shown in FIGS. 1 to 3, 5 to 7, and 11 to 16, the punch plate 41 cooperates with the punching blade 32 to punch the punching hole P <b> 1 in the paper P. 412 and a metal part provided with a perforating part 413 for perforating a cut hole P2 in the paper P in cooperation with the cutting blade 33, in a state of being superimposed on the lower surface of the top frame 42, It is attached to the base frame 21 using screws and positioning pins (not shown). Further, in the present embodiment, a protrusion 415 for separating the paper P from the punch table 4 side is provided on the downward surface 414 of the punch plate 41. The two protrusions 415 that make a pair are arranged in a pair on the front side of the paper insertion gap 35. Each protrusion 415 has a substantially hemispherical shape and is formed integrally with the punch plate 41 of the punch table 4. In FIG. 7, a part of the punch plate 41 is cut away.

  The top frame 42 includes a front housing 44 opened upward and forward, and a rear housing 45 formed integrally with the front housing 44 and opened downward and rearward.

  The front housing 44 is provided with a window cover mounting portion 441 for mounting the window cover 43, a restraining member mounting portion 442 for mounting the restraining member 7, and the punching blade 32 and the cutting blade 33 provided in the front region, respectively. Passing holes 443 that pass therethrough and walls 444, 445, and 446 formed by rising from the edges of the passing holes 443 are provided. The window cover attaching portion 441 has a shape capable of attaching a transparent window cover 43 that is slidably opened and closed in the front-rear direction in order to remove paper dust accumulated in the top frame 42 to the outside. . The restraining member mounting portion 442 includes a mounting base 448 having a pin insertion hole 447 at the rear end, and a pair of upright walls 449 arranged on both sides of the mounting base 448. Each standing wall 449 is provided with a positioning cutout 440 at the upper end. In FIG. 7, a part of one of the standing walls 449 is cut away. The walls 444, 445, and 446 are for suppressing the chips of the paper P from falling from the passage hole 443, and are continuously formed along the edge of the passage hole 443. The wall 444 on the front end side is set to have a height dimension larger than those of the other walls 445 and 446, and is configured to guide the punching blade 32 protruding to the drilling position (C). The rear end side wall 446 is formed between the pair of upright walls 449 and is set to have a height smaller than those of the other walls 444 and 445.

  The rear housing 45 is fitted so as to cover the outside of the rear housing R of the base frame 21 and is screwed to the base frame 21 using the screws 20.

  The restraining member 7 is attached to such a top frame 42.

  The restraining member 7 is for keeping the cut and raised piece P5 inserted in the window D3, and is provided separately from the cutting blade 33 in the present embodiment. As shown in FIGS. 2, 3, 5 to 8 and 11 to 16, the restraining member 7 is disposed on the punch base 4 side with the rotating end 711 facing the gap 35. A member main body 71, a mounting portion 72 that holds the base end 712 of the restraining member main body 71, a spring retainer 73 that is provided on the mounting portion 72 and is disposed opposite to the restraining member main body 71, and is held by the spring retainer 73. Then, a spring 74 that biases the restraining member body 71 in the restraining position (R) direction, and a stopper portion 75 that latches the restraining member body 71 at the restraining position (S) against the biasing force of the spring 74. It is equipped with. In the present embodiment, the portions other than the spring 74 of the restraining member 7 are integrally formed of synthetic resin.

  As shown in FIGS. 5 to 8 and FIGS. 11 to 16, the restraining member main body 71 is placed at a restraining position (R) for keeping the cut and raised piece P5 inserted in the window D3 by an elastic biasing force. A retraction position (when the cut and raised piece P5 is temporarily inserted into the window D3 of the cutting blade 33 using the operating force when the cut and raised piece P5 is inserted into the window D3. S) is elastically retracted. Specifically, the restraining member main body 71 is held by the base portion 2 that is a stationary member via the top frame 42 of the punch base 4 and is elastically deformable plate-like that is cantilevered on the base end 712 side. Is. The restraint member main body 71 is configured to move in the thickness direction of the restraint member main body 71, in other words, in the front-rear direction of the binding machine 1, and can take the restraint position (R) and the retracted position (S). The cut and raised piece P5 is restrained by the rotating end 712. In other words, the restraining member main body 71 moves from the restraining position (R) to the retracted position (S) by elastic deformation in its thickness direction, and presses the cut and raised piece P5 downward with the lower surface 713. It has become. And this restraint member main body 71 sets the thickness dimension of the rotation end 712 larger than the thickness dimension of another part. More specifically, the restraining member main body 71 has an inclined surface 714 in the vicinity of the rotation end 712, and when an operating force for moving from the restraining position (R) to the retracted position (S) is applied. In addition, it can be used as a guide surface for minimizing the catch between the inner cam 34 and the cut and raised piece P5. Further, the restraining member main body 71 is configured to hold one end of the spring 74 at an intermediate portion.

  As shown in FIGS. 3, 5 to 8, and 11 to 16, the mounting portion 72 supports the base end 712 of the restraining member main body 71 at the front end portion, and is provided below the rear end portion. A pin 721 that protrudes in the left and right directions, and a protrusion 722 that protrudes in both the left and right directions provided in the intermediate portion. Then, the pin 721 is attached to the pin insertion hole 447 of the top frame 42 and the protrusion 722 is attached to the notch 440 of the top frame 42 so that the restraining member 7 is attached from above the top frame 42. The top frame 42 is attached.

  As shown in FIGS. 5 to 8 and FIGS. 11 to 16, the spring retainer 73 is a plate having a base end portion supported by the mounting portion 72 and holding the other end of the spring 74 at the tip end portion. The rear portion is attached to the mounting base 448 of the top frame 42.

  As shown in FIGS. 5 to 8 and FIGS. 11 to 16, the spring 74 is a coil spring in the present embodiment, and has a relatively weak repulsive force.

  The stopper portion 75 is for restraining the restraint member main body 71 at the restraint position (R) against the urging force of the spring 74 as shown in FIGS. 5 to 8 and 11 to 16. A locking piece 751 engaged with the wall 446 of the top frame 42 and an arm 752 for transmitting the movement of the restraining member main body 71 to the locking piece 751 are provided. One end of the arm 752 is connected to the base end portion of the locking piece 751, and the other end is connected to the vicinity of the rotating end 711 of the restraining member main body 71.

  In such a binding machine 1, as shown in FIGS. 5 and 6, a portion where the paper P inserted into the paper insertion gap 35 abuts, that is, a locking wall 83 disposed in the back of the gap 35. A positioning portion 81 for positioning the paper P is formed by contacting the corner portion P4 of the paper P. Further, as shown in FIGS. 1 to 3 and 7, marks 82 for confirming the positioning state of the paper P positioned by the positioning portion 81 are provided on both side surfaces of the binding machine 1.

  In addition, if the slide member 31 and the operation lever 5 are connected by the drive mechanism 6 that is a link mechanism as in this embodiment, the performance at the time of blade extraction can be further improved. That is, even when the number of sheets P increases and the cut and raised piece P5 cannot be pulled out to the one side Pa side of the sheet P only by the force of the coil spring S1, a downward operating force is applied to the operation lever 5. Thus, the drawing can be completed.

  Next, the operation of the binding machine 1 will be described.

  In a state where the operation lever 5 is not operated, as shown in FIG. 5, the slide member 31 is held at the lower limit position, and the inner cam 34 maintains the initial posture (S) accommodated in the extraction blade 32. . In this state, as shown in FIG. 11, the plurality of stacked paper sheets P are inserted into the gap 35 formed between the upward surface F14 of the base frame 21 and the downward surface 414 of the punch plate 41. insert. Then, from the upper side of the window cover 43, the positions of the punching hole P1 and the cut hole P2 that are punched in the paper P through the passage hole 443 are confirmed. Further, the positioning state of the paper P positioned by the positioning unit 81 is confirmed from the side surface side of the binding machine 1 using the mark 82. After that, when the operation lever 5 is operated upward, the force applied to the operation lever 5 is converted into an upward movement of the slide member 31 through the drive mechanism 6 and transmitted.

  More specifically, when the operation lever 5 is operated upward, the lever plate 51 of the operation lever 5 rotates about the support shaft 53 and pushes up the drive plate 61 upward. A force for operating the operation lever 5 upward is transmitted to the drive shaft 36 via the drive plate 61. As a result, the slide member 31 is moved upward.

  When the slide member 31 starts to move upward, the slide member 31 rises against the urging force of the coil spring S1. As a result, the leading edges of the punching blade 32 and the cutting blade 33 attached to the slide member 31 come into contact with one surface Pa of the paper P, and the paper P is pushed up to a position where it is pressed against the punch plate 41. When the operation lever 5 is further moved upward from this position, the punching blade 32 and the cutting blade 33 are kept pressed against the punch plate 41 by the punching blade 32 and the cutting blade 33, as shown in FIG. The cutting blade 33 penetrates the paper P, and the paper P is punched with a punching hole P1 and a cut hole P2.

  When the punching blade 32 and the cutting blade 33 are further raised after drilling, the arm 344 of the inner cam 34 disposed inside the punching blade 32 is a locking pin F15 disposed below the locking wall F13. 13 and against the urging force of the coil spring S2 disposed between the inner cam 34 and the slide member 31, as shown in FIG. 13, the inner cam 34 is rotated to the turning posture (K). Move. As a result, the front end P51 side of the cut and raised piece P5 cut and raised from the punching hole P1 to the other surface Pb side of the paper P is inserted into the window D3 of the cutting blade 33.

  In the binding machine 1, the edge D4 on the front end side of the window D3 is set at a position where it does not interfere with the operation of the cut and raised piece P5. That is, in this embodiment, the dimensions of each part are set so that the cut and raised piece P5 is inserted into the window D3 without the cut and raised piece P5 touching the edge D4 on the front end side of the window D3. Therefore, it is possible to insert the cut and raised piece P5 into the window D3 without temporarily increasing the operating force. The cut and raised piece P5 inserted into the window D3 by the inner cam 34 comes into contact with the front surface of the restraining member main body 71 waiting at the restraining position (R). When it is received, it is elastically retracted to the retracted position (S), so that it can be buried under the rotating end 711 of the restraining member main body 71 without having a large operating force. That is, as shown in FIG. 12, when the inner cam 34 is further rotated in the window intrusion direction from the position where the cut and raised piece P5 is in contact with the front surface of the restraining member main body 71, the force is restrained as shown in FIG. The member main body 71 is retracted while rotating to the retracted position (S) side against the force of the spring 74. Therefore, when the inner cam 34 reaches the rotational posture (K), the cut and raised piece P5 reaches a position where the inner cam 34 can enter the lower side of the rotational end 711 of the restraining member main body 71.

  Next, when the operation of the operation lever 5 is released, the inner cam 34 is returned from the rotation posture (K) to the initial posture (S) by the biasing of the coil spring S2. More specifically, when the inner cam 34 starts to return to the initial posture (S) direction from the state in which the cut and raised piece P5 has entered the lower side of the rotation end 711 of the restraining member main body 71, as shown in FIG. Even if the restraining member main body 71 is rotated in the restraining position (R) direction by its own elastic shape retaining force and the elastic biasing force of the spring 74, even if the inner cam 34 is finally separated from the cut and raised piece P5, the cut and raised piece P5. Is restrained by the restraining member main body 71 and does not return to the window D3 side. That is, the cut and raised piece P5 is pressed by the lower surface 713 of the rotation end 711 of the restraining member main body 71 and restrained in the window D3.

  Further, with the return of the inner cam 34 to the initial posture (S) direction, the punching blade 32 and the cutting blade 33 are moved downward on the immersive side by the biasing force of the coil spring S1, and after the state shown in FIG. The punching blade 32 and the cutting blade 33 are extracted from the paper P while the paper P is pulled away from the punch plate 41. At that time, the cut and raised piece P5 inserted into the window D3 of the cutting blade 33 is pressed downward by the rotating end 711 of the restraining member main body 71 as shown in FIG. As shown in FIG. 16, the sheet D passes through the cut hole P2 while being pressed by the edge D4 on the front end side of the window D3, and is extracted to the one surface Pa side of the sheet P as shown in FIG. The paper P is combined.

  If the paper P is extracted from the binding machine 1 in this state, the joining portion P3 of the paper P is compressed and deformed in the thickness direction on the way, and the booklet B described above is formed as shown by a two-dot chain line in FIG. It ’s done.

  As described above, the binding machine 1 according to the present embodiment is adjacent to the punching blade 32 that punches the punching hole P1 while forming the cut and raised pieces P5 on the plurality of sheets of paper P. A cutting blade 33 provided with a cut hole P2 for locking the tip P51 side of the cut and raised piece P5, a base portion 2 for holding the cutting blade 32 and the cutting blade 33, and the base The punching table 4 disposed in the portion 2 via the paper insertion gap 35 is provided, and the punching blade 32 and the cutting blade 33 held in the base portion 2 are connected to the paper insertion gap 35. In the state where the tip P51 side of the cut and raised piece P5 cut and raised to the punch base 4 side through the paper P inserted into the punch plate 4 is engaged with the window D3 of the cut blade 33, the cutting blade 33 and the The extraction blade 32 is extracted so as to return to the base 2 side. Thus, the inner cam for inserting the cut and raised piece P5 into the window D3 of the cutting blade 33 is formed by passing the cut and raised piece P5 through the cut hole P2 and binding the paper P. 34 and a retreat position (S) that is provided separately from the inner cam 34 and retracts when the cut and raised piece P5 is inserted into the window D3 of the cutting blade 33, and the cut and raised piece P5 is inserted into the window D3. The restraint member 7 which can take the restraint position (R) for maintaining a state is provided, and the restraint member 7 is provided separately from the cutting blade 33.

  Since the binding machine 1 of the present embodiment is as described above, the inner cam 34 opens the cut-and-raised piece P5 so that the restraining member 7 keeps the cut-and-raised piece P5 inserted in the window D3. Even if it operates in the reverse direction, the cut and raised piece P5 does not return together with the inner cam 34. For this reason, when the cut and raised piece P5 is inserted into the window D3, the degree of freedom in designing the window D3 can be increased, such as minimizing interference with the edge D4 of the window D3 as much as possible. Therefore, it is possible to reliably bind the paper P without problems that an excessive force is applied to the cut and raised piece P5 when inserted into the window D3 and the cut and raised piece P5 is torn or the energy required for the operation is increased. A binding machine 1 that can be provided can be provided. That is, in the conventional device, the cut and raised piece P5 once inserted into the window D3 returns to the punching hole P1 direction as the inner cam 34 returns from the rotational posture (K) to the initial posture (S). In order to prevent such a return of the cut and raised piece P5, it is pushed into the window D3 while deforming the tip P51 side of the cut and raised piece P5, and the cut and raised piece P5 is hooked on the edge of the window D3. It had been. Therefore, there was a problem that the operating force temporarily increased when the cut and raised piece P5 was pushed into the window D3. However, in the case of the present embodiment, the cut and raised piece P5 is moved to the window D3. Since it can be held in the window D3 without having to force it to be pushed, it is not necessary to cause a temporary increase in the operating force as described above.

  The restraint member main body 71 is held at the restraint position (R) by an elastic biasing force, and the retracted position (S) is temporarily utilized by using an operating force when the cut and raised piece P5 is inserted into the window D3. Therefore, the restraining member 7 can have a relatively simple structure. Therefore, the whole binding machine 1 can be made compact.

  The restraint member main body 71 is configured to move in the thickness direction so as to be able to take the restraint position (R) and the retracted position (S), and restrains the cut-and-raised piece P5 at its rotating end 711. Therefore, the rotation operation of the restraining member main body 71 can be used effectively. Further, in this embodiment, the inner cam 34 that applies an operating force in the retracted position (S) direction to the restraining member main body 71 rotates. Therefore, the rotation of the inner cam 34 is used to rotate the restraining member main body 71. Easy to communicate to movement.

  The restraining member 7 has a restraining member main body 71 disposed on the punch base 4 side with the rotation end 711 facing the gap 35, and a mounting portion 72 for holding the base end 712 of the restraining member main body 71, A spring retainer 73 provided at the mounting portion 72 and disposed opposite to the restraining member main body 71; and a spring 74 held by the spring retainer 73 and biasing the restraining member main body 71 in the restraining position (R) direction; The stopper 74 is provided with the restraining member main body 71 locked to the restraining position (R) against the urging force of the spring 74, and is incorporated in the binding machine 1 in a united state. be able to. In particular, in this embodiment, it is only necessary to attach the restraining member 7 unitized to the restraining member attaching portion 442 of the punch base 4 from above, so that assembly work is also easy.

  The restraint member main body 71 is moved from the restraint position (R) to the retracted position (S) by elastic deformation in its thickness direction, and the thickness dimension of the rotating end 711 is made larger than the thickness dimension of other portions. Since it is set large, the cut and raised piece P5 can be constrained in a wide area formed on the lower surface 713 of the rotation end 711, and the elasticity of the member is reduced in another portion having a smaller thickness than the rotation end 711. The deformation can be easily performed.

  Moreover, according to the binding machine 1 of this embodiment, the following effects are also acquired.

  Since the user of the binding machine 1 can visually see how the paper P is bound, a comfortable feeling can be given when the binding machine 1 is used.

  In addition, since the walls 444, 445, and 446 are provided on the top frame 42 of the punch base 4, it is possible to suppress the chips of the paper P from falling from below the punched portions 412 and 413 of the punch plate 41. it can. In particular, the wall 446 also serves as a locking wall for the stopper portion 75 of the restraining member 7. Further, even when the window cover 43 is opened, the high standing wall 449 is erected at a position where the window cover 43 can be opened and reach the user's hand. Touching the insert blade 33 is prevented or suppressed.

  Since the punching blade 32 includes the auxiliary blade portion D8, the escape portion P6 formed by the auxiliary blade portion D8 can suppress or prevent the breakage from occurring at the base end of the punching hole P1. . Moreover, when the inner cam 34 presses the cutting and raising piece P5, the occurrence of the problem that the cutting and raising piece P5 becomes too long to pass through the window D3 of the cutting blade 33 is effectively suppressed or prevented. It is possible to suppress or prevent the base end P52 of the cut and raised piece P5 from breaking.

  Since the cutting blade 33 has a contact portion obtained by bending a sheet metal material at the edge D4 on the tip side of the window D3, the both sides of the cut and raised piece P5 are partially pressed to cut the cut and raised piece P5. It can be passed through the hole P2. Therefore, even when the number of the cut and raised pieces P5 is relatively large, when the cut and raised pieces P5 abut against the edge D4 of the window D3 and pass through the cut hole P2, the cutting blade 32 and the cut and raised pieces P5 It is possible to suppress an increase in the frictional force generated during the period.

  Further, since the paper P inserted into the gap 35 is lifted so as to approach the punch table 4 by the protrusion F16 on the base portion 2 side in the back side region of the gap 35, the paper P is compared with the case where there is no protrusion F16. The amount of displacement in the thickness direction of P is small. In other words, in the back side region of the gap 35, the sheet P remains moved toward the punch base 4 by the protrusion F16 on the base unit 2 side, and thus the sheet P is exposed to the thickness direction during the binding operation. Can be effectively suppressed without narrowing the entire gap 35. Therefore, an effect equivalent to that provided with a conventional paper presser can be obtained. Therefore, the paper P can be pressed without using a movable part, and the beautiful punching hole P1 and the cut hole P2 can be formed. On the other hand, since the paper P is pushed down by the protrusion 415 on the punch table 4 side so as to be pulled away from the punch table 4, when the binding operation is finished and the paper P is pulled out, the upper surface, that is, the other surface from the paper P of the cut and raised piece P5. The portion protruding to the Pb side can be prevented or suppressed from being caught on the edge of the punch plate 41.

  Next, another embodiment of the present invention will be described with reference to FIG. The binding machine according to the present embodiment corresponds to the binding machine according to claims 6 and 7. In addition, the same code | symbol which added "A" before is attached | subjected to the part which is the same as that of embodiment mentioned above, or respond | corresponds, and detailed description is abbreviate | omitted.

  As in the above-described embodiment, the binding machine includes a punching blade that forms a punching hole while forming cutting and raising pieces P5 on a plurality of sheets of paper P, and the cutting and raising piece provided adjacent to the punching blade. A cutting blade A33 for forming a cut hole P2 for locking the tip P51 side of P5, a base portion for holding the cutting blade and the cutting blade A33, and a paper insertion gap in the base portion. The punching blade provided on the base portion and the cutting blade A33 are passed through the paper P inserted in the paper insertion gap and cut to the punching table side. In a state where the tip P51 side of the raised cutting piece P5 is engaged with the window AD3 of the cutting blade A33, the cutting blade A33 and the punching blade are pulled out so as to return to the base side. The cut and raised piece P5 is moved to the cut hole P2 by By penetrating it is obtained so as to bind the paper P.

  In the binding machine of this embodiment, the inner cam A34 which is an insertion member for inserting the cut and raised piece P5 into the window AD3 of the cutting blade A33, and the inner cam A34 are provided separately from the cut and raised piece P5. A restraining member A7 that can take a retracted position (S) that retracts when the blade is inserted into the window AD3 of the cutting blade A33 and a restraining position (R) for keeping the cut and raised piece P5 inserted in the window AD3. And comprising.

  The restraining member A7 is provided on the cutting blade A33, and can move between the retracted position (S) and the restraining position (R) by moving in the thickness direction of the cutting blade A33. . This restraining member A7 is provided at the edge AD4 on the front end side of the window AD3 of the cutting blade A33, and retracts in the thickness direction only when the cut and raised piece P5 is inserted into the window AD3. is there. Specifically, the restraining member A7 is attached to the vicinity of the edge AD4 on the distal end side of the cutting blade A33 via a hinge A70 so as to restrain the cut and raised piece P5 at the rotating end. I am doing so. For example, the restraining member A7 is held at the restraining position (R) by its own weight, and temporarily uses the operating force when the cut and raised piece P5 is inserted into the window AD3 to temporarily retract the retracting position (S). It is designed to evacuate.

  If this is the case, in the same manner as described above, the restraining member A7 keeps the cut and raised piece P5 inserted in the window AD3, so that the inner cam A34 is in the reverse direction in which the cut and raised piece P5 is opened. Even if it operates, the cut and raised piece P5 does not return together with the inner cam A34. Therefore, when the cut and raised piece P5 is inserted into the window AD3, the degree of freedom in designing the window AD3 can be increased, for example, by making the interference with the edge AD4 of the window AD3 as small as possible or completely eliminated. Therefore, the problem that an excessive force is applied to the cut and raised piece P5 during insertion into the window AD3 and the cut and raised piece P5 is torn or the energy required for the operation is increased can be solved.

  Of course, the binding machines corresponding to claims 6 and 7 are not limited to those described above, and can be variously changed.

  For example, the position where the restraining member is provided may be an edge other than the edge on the front end side of the window, or may be a position slightly away from the edge of the window. Furthermore, the method of attaching the restraining member to the cutting blade is not limited to the hinge and can be variously changed. Moreover, it is not restricted to what attaches a cutting blade and a separate restraining member to a cutting blade, A restraining member may be integrally provided in the cutting blade.

  Further, the movement of the restraining member with respect to the cutting blade may be any movement as long as it retracts in the thickness direction, and may be an operation other than the rotation operation such as a slide operation, for example.

  Next, still another embodiment of the present invention will be described with reference to FIG. The binding machine according to the present embodiment corresponds to the binding machine according to claims 6 and 8. In addition, the same code | symbol which added "B" before is attached | subjected to the part which is the same as that of embodiment mentioned above, or corresponding, and abbreviate | omits detailed description.

  As in the above-described embodiment, the binding machine includes a punching blade that forms a punching hole while forming cutting and raising pieces P5 on a plurality of sheets of paper P, and the cutting and raising piece provided adjacent to the punching blade. A cutting blade B33 for forming a cut hole P2 for locking the front end P51 side of P5, a base portion for holding the cutting blade and the cutting blade B33, and a paper insertion gap in the base portion. The punching blade and the cutting blade B33 held by the base portion are passed through the paper P inserted into the paper insertion gap and cut to the punching table side. In a state where the tip P51 side of the raised cutting piece P5 is engaged with the window BD3 of the cutting blade B33, the cutting blade B33 and the punching blade are pulled out so as to return to the base portion side. The cut and raised piece P5 is moved to the cut hole P2 by By penetrating it is obtained so as to bind the paper P.

  The binding machine of this embodiment is provided separately from the inner cam B34, which is an insertion member for inserting the cut and raised piece P5 into the window BD3 of the cutting blade B33, and the cut and raised piece P5. A restraining member B7 that can take a retracted position (S) that retracts when the blade is inserted into the window BD3 of the cutting blade B33 and a restraining position (R) for keeping the cut and raised piece P5 inserted in the window BD3. And comprising.

  The restraining member B7 of the present embodiment is provided on the cutting blade B33, and can move between the retracted position (S) and the restraining position (R) by moving in the thickness direction of the cutting blade B33. The cutting blade B33 retracts in a direction to reduce resistance only when the cut and raised piece P5 is inserted into the window BD3, and the cutting blade B33 removes the restraining member B7. Also serves as. Specifically, the restraining member B7 (cutting blade B33) is provided so as to be rotatable in the thickness direction of the restraining member B7 (cutting blade B33) with the base end side of the cutting blade B33 as the center. When the cut and raised piece P5 is inserted into the window BD3, the edge BD4 on the distal end side of the window BD3 moves to a position where it does not contact (or a little contact) with the cut and raised piece P5, and the cut and raised piece P5 is moved to the window BD3. After the insertion, the cut and raised piece P5 is restrained by the edge BD4 on the front end side of the window BD3. The method of operating the restraining member B7 (the cutting blade B33) may be operated in association with the operation of the operation lever, or may be operated regardless of the operation of the operation lever.

  Even if it is such, the effect similar to the above-mentioned is acquired.

  Note that the binding machines corresponding to claims 6 and 8 are not limited to those described above, and can be variously changed. For example, the movement of the restraining member (cutting blade) may be any movement as long as it is retracted in the thickness direction, and may be an operation other than the rotation operation such as a slide operation.

  The present invention is not limited to the embodiment described above.

  For example, the insertion member is not limited to the inner cam, and can be variously changed in addition to the punching blade. Further, the movement of the insertion member in the forward direction or the reverse direction is not limited to the rotation operation, and may be a slide operation or the like. This insertion member moves symmetrically back and forth around the most penetrating position of the cutting blade by interlocking the forward / backward movement of the cutting blade with the forward and backward movement of the insertion member. Alternatively, a portion in which the advancing / retreating operation of the cutting blade is not interlocked with the operation of the insertion member, and the insertion member is operated in the reverse direction after the cutting blade has moved in the extraction direction may be used.

  The restraining member may be moved between the restraining position and the retracted position by the restraining member operating mechanism. That is, the constraining member is actuated in a direction in which the cut and raised pieces are constrained when the punching blade and the cutting blade penetrate the paper and the insertion member inserts the cut and raised pieces into the window of the cutting blade. In addition, any one may be used as long as the cutting blade is actuated in the direction in which the cutting and raising piece is released after the cutting blade has moved in the extraction direction by a certain distance.

  Moreover, the restraining member may be attached to any of the cutting blade side, the punching blade side, or the base portion side. Further, the restraining member may be held at the restraining position by using gravity or other operation force without using the elastic biasing force. The restraining member may be any member as long as it temporarily retracts to the retracted position using the operating force when the cut and raised piece is inserted into the window. What is to be done is not limited to the inner cam, but may be, for example, a cut-and-raised piece, a cutting blade or punching blade, a protrusion provided on a base portion or a punch base, or the like.

  Further, the shape and size of the restraining member can be variously changed. For example, the dimension of the restraining member in the left-right direction is set so as to press over the entire width direction of the cut and raised piece, or set to press only a part of the cut and raised piece in the width direction. Etc. Further, the vertical dimension of the restraining member may be any as long as the cut and raised pieces have such a length that they do not come out of the window and return to the insertion member side. The length is not limited to a length that allows the raised piece to always be in contact with the other side of the paper.

  The restraint member main body may be in the form of a cantilever with a base end fixed, or the base end may be connected by a hinge or joint that can rotate in one direction or a plurality of directions. The movement between the retreat position and the restraint position is not limited to the rotation operation and can be variously changed.

  The binding machine may be provided with a plurality of cutting blades or a plurality of cutting blades. For example, a single cutting blade for forming a plurality of cut and raised pieces and a plurality of cutting blades corresponding to the plurality of cut and raised pieces, or a plurality of pieces for forming a plurality of cut and raised pieces And a plurality of cutting blades for forming a plurality of cutting and raising pieces, and a plurality of cutting blades for forming a plurality of cutting and raising pieces. The number of cutting blades corresponding to the plurality of cutting and raising pieces may be provided.

  Further, the projecting and retracting directions of these cutting blades and punching blades are not limited to those in which the projecting side of the cutting blade and punching blade is upward and the immersion side is downward, as shown in the above-described embodiment. It is also possible to use the cutting blade and the cutting blade as the lower side and the immersive side as the upper side. Further, the moving direction of the punching blade and the cutting blade is such that the punching hole and the cut hole are formed by temporarily moving in the vertical direction, or the punching hole and the cut hole are moved by moving in the left-right direction or the diagonal direction. May be formed. For example, the thing of the specification which turned upside down from the thing of embodiment mentioned above is also considered. In the binding machine of this specification, “upper”, “lower”, “up”, “upper surface”, or “lower surface” in the above-described embodiments are respectively referred to as “lower”, “upper”, “lower”, and “lower surface”. Or “top surface”.

  As long as the paper is in sheet form, various changes such as paper or plastic can be made. In addition, if a plurality of sheet bodies made of the same quality material are bound, it is possible to reduce the trouble in sorting and discarding.

  The blade unit may have not only a three-piece structure of a cutting blade, a cutting blade and an inner cam, but also a two-piece structure of a cutting blade and a cutting blade. At this time, it is preferable that the punching blade is provided so as to be rotatable between a punching posture and a rotating posture, and a punching hole can be formed in the punching posture.

  The cutting blade and the cutting blade are not limited to those shown in the drawings, and various changes can be made. For example, the cutting blade is provided with a flat blade that forms only a straight cut hole schematically shown in FIGS. 17 and 18, etc., and both end sides that form a U-shaped cut hole (not shown) are provided. A blade provided with a blade bent in the thickness direction, a first blade in which both end sides forming an H-shaped (or getter-shaped) cut hole as shown in FIG. One having a second blade extending in the direction opposite to the bending direction of the one blade may be considered. The angle at which the blade is bent in the U-shaped cutting hole forming blade or the H-shaped (or getter-shaped) cutting hole forming blade, or the first blade and the second blade The angles are not limited to those shown in the drawings, and can be variously changed. The shape of the window of the cutting blade is not limited to the illustrated one. Further, the punching blade may be one that forms a U-shaped punching hole in addition to the one that forms the arrow-shaped punching hole shown in FIG.

  In the present embodiment, the punching blade and the cutting blade are reciprocated while the punch base is stationary. On the contrary, the punching blade and the cutting blade are stationary while the punching blade and the cutting blade are stationary. You may comprise so that a base may be reciprocated.

  In the above-described embodiment, the operation lever is manually operated. However, the operation lever may be operated electrically. The operating lever is not limited to the reciprocating lever shown in the present embodiment, and may be a dial type that rotates in one direction, a slider type that operates linearly, or the like.

  In addition, various changes may be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Binding machine 2 ... Base part 32 ... Extraction blade 33, A33 ... Cutting blade D3, AD3 ... Window D4, AD4 ... Edge 35 ... Gap 4 ... Punch stand 7, A7 ... Restraint member 71 ... Restraint member main body (S) ... Retraction position (R) ... Restraining position 711 ... Rotating end 712 ... Base end 72 ... Mounting portion 73 ... Spring retainer 74 ... Spring 75 ... Stopper portion P ... Paper P1 ... Punching hole P2 ... Cut hole P5 ... Cut and rise piece P51 …tip

Claims (8)

A punching blade for forming a punching hole while forming a cut and raised piece on a plurality of sheets, and a cut hole provided adjacent to the punching blade and for locking the leading end side of the cut and raised piece are provided. A cutting blade, a base portion for holding the cutting blade and the cutting blade, and a punch base disposed on the base portion with a paper insertion gap interposed therebetween, and held by the base portion. With the cutting blade and the cutting blade penetrating the paper inserted in the paper insertion gap, the tip side of the cut and raised piece cut and raised on the punch base side is engaged with the window of the cutting blade. A binding machine that pulls the cut and raised pieces through the cut hole to bind the paper by pulling out the cutting blade and the cutting blade so as to return to the base portion side,
An insertion member for inserting the cutting and raising piece into the window of the cutting blade, a retreat position provided separately from the insertion member and retracted when the cutting and raising piece is inserted into the window of the cutting blade, and the cutting and raising A binding machine comprising: a restraining member capable of taking a restraining position for keeping the piece inserted in the window, wherein the restraining member is provided separately from the cutting blade. The restraint member is held at the restraint position by an elastic biasing force, and temporarily retracts to the retracted position by using an operation force when the cut and raised piece is inserted into the window. The binding machine according to 1. The said restraining member is comprised so that it can move in the thickness direction and can take the said restraint position and the said retracted position, The said raising part is restrained by the rotation end. The binding machine described. The restraining member has a restraining member main body disposed on the punch base side with a rotating end facing the gap, an attachment portion for holding a base end of the restraining member main body, and the restraining member provided on the attachment portion. A spring retainer disposed opposite to the member body, a spring held by the spring retainer to urge the restraint member body in the restraint position direction, and the restraint member body against the urging force of the spring. The binding machine according to claim 1, 2 or 3, further comprising: a stopper portion that is engaged with the stopper. 5. The restraint member main body moves from a restraint position to a retracted position by elastic deformation in the thickness direction of the restraint member, and the thickness dimension of the rotating end is set larger than the thickness dimension of other portions. The binding machine described. A punching blade for forming a punching hole while forming a cut and raised piece on a plurality of sheets, and a cut hole provided adjacent to the punching blade and for locking the leading end side of the cut and raised piece are provided. A cutting blade, a base portion for holding the cutting blade and the cutting blade, and a punch base disposed on the base portion with a paper insertion gap interposed therebetween, and held by the base portion. With the cutting blade and the cutting blade penetrating the paper inserted in the paper insertion gap, the tip side of the cut and raised piece cut and raised on the punch base side is engaged with the window of the cutting blade. A binding machine that pulls the cut and raised pieces through the cut hole to bind the paper by pulling out the cutting blade and the cutting blade so as to return to the base portion side,
An insertion member for inserting the cutting and raising piece into the window of the cutting blade, a retreat position provided separately from the insertion member and retracted when the cutting and raising piece is inserted into the window of the cutting blade, and the cutting and raising A restraining member capable of taking a restraining position to keep the piece inserted in the window, and the restraining member is provided on the cutting blade and moves in the thickness direction of the cutting blade. The binding machine is operable between the retracted position and the restraining position. The said restraining member is provided in the edge by the side of the front-end | tip of the said cutting blade, and retracts | sucks in the thickness direction only when the said cutting and raising piece is inserted in a window. Binding machine. The binding machine according to claim 6, wherein the cutting blade retracts in a direction to reduce resistance only when the cut and raised piece is inserted into the window, and the cutting blade serves also as the restraining member. .