JP5909981B2 - 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 cutting, a main body for holding the cutting blade and the cutting blade, and a punch base disposed on the main body via a paper insertion gap Is known (see, for example, Patent Document 1). In this binding machine, the cutting blade held by the main body and the cutting blade are passed through the paper inserted into the paper insertion gap, and the leading end side of the cutting and raising piece cut and raised to the punch base side is removed. In a state where the cutting blade is engaged with the window of the cutting blade, the cutting blade and the punching blade are pulled out so as to return to the main body side, thereby penetrating the cut and raised piece through the cut hole. It is designed to bind paper.

  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 main body for holding the cutting blade and the cutting blade, and a punch base disposed on the main body via a paper insertion gap. The leading end side of the cut and raised piece cut and raised to the punch base side through the paper inserted into the paper insertion gap through the punching blade and the cutting blade held by the main body is disposed on the cutting blade. The cutting blade and the punching blade are pulled out so as to return to the main body side while being engaged with the window, so that the cut and raised pieces penetrate the cut hole and the paper is bound. An insertion member for inserting the cut and raised piece into the window of the cutting blade; The insertion member is operated in the positive direction in which the cutting blade and the cutting blade are inserted into the window when the cutting blade and the cutting blade have penetrated the paper, and the insertion member is moved after the cutting blade has moved in the extraction direction by a certain distance. And an insertion member operating mechanism that operates in a reverse direction in which the cut and raised pieces are released.

  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.

  In such a case, due to the action of the insertion member operating mechanism, the insertion member is not operated in the reverse direction in which the cut-and-raised piece is released until the cutting blade moves in the extraction direction by a certain distance. Therefore, the degree of freedom of timing for operating the insertion member in the reverse direction can be increased by variously setting the constant distance. Therefore, it is possible to provide a binding machine that can bind sheets reliably without problems such as an excessive force applied to the cut and raised pieces and tearing or an increase in energy required for operation.

  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.

  As the insertion member operating mechanism, the insertion member is operated in the positive direction by using the movement in the penetration direction of the extraction blade interlocked with the cutting blade, and the movement in the extraction direction of the extraction blade is used. The interlocking mechanism that operates the insertion member in the reverse direction and the interlocking between the cutting blade and the punching blade are temporarily released, and the cutting blade operates for a certain distance in the pulling direction from the most penetrating position where the cutting blade penetrates deepest into the paper. Until then, the thing provided with the delay production | generation part for keeping a punching blade in the most penetration position is preferable.

  As a preferred aspect of the interlocking mechanism portion, an arm extended from the base end portion of the inner cam, and when the punching blade provided in the main body is operated in the penetration direction, the arm is brought into contact with the arm. Examples include a locking member that operates the front end portion in the forward direction and a return elastic member that operates the front end portion of the inner cam in the reverse direction.

  As a preferable aspect of the delay generation unit, the cutting blade is operated to the most penetrating position in conjunction with the cutting blade, and only while the cutting blade moves in the direction of extracting a certain distance from the most penetrating position. What is provided with a floating coupling element that releases the linkage of the blade to the cutting blade, and a holding element that holds the cutting blade in the most penetrating position while the cutting blade moves in the extracting direction from the most penetrating position in a certain distance. Can be mentioned.

  As a suitable cutting blade in the case where the cut and raised piece includes a proximal end region and a distal end region wider than the proximal end region, a proximal end region for forming the proximal end region is used. The thing provided with the formation part and the front-end | tip area | region formation part for forming the said front-end | tip area | region is mentioned.

  Moreover, the binding machine of this invention may have the restraint member for keeping the cutting and raising piece inserted in the window of the cutting blade in the state inserted in the window other than the said insertion member. That is, another binding machine of the present invention includes a punching blade that forms 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 that is provided adjacent to the punching blade. A cutting blade for forming a cut hole for locking; a main body for holding the cutting blade and the cutting blade; and a punch base disposed on the main body via a paper insertion gap. The leading edge side of the cut and raised piece cut and raised on the punch base side through the paper inserted in the paper insertion gap through the punching blade and the cutting blade held by the main body is the cutting blade. In such a state that the cutting blade and the punching blade are pulled out so as to return to the main body side while being engaged with the window, the cut and raised pieces are passed through the cut holes so as to bind the paper. An insertion member for inserting the cut and raised piece into the window of the cutting blade; A restraining member that is provided separately from the insertion member and that keeps the cut and raised piece inserted into the window of the cutting blade inserted into the window, and the cutting blade and the cutting blade are allowed to pass through the paper. The insert member is operated in a direction in which the cut and raised piece is restrained at a stage where the cut and raised piece is inserted into the window of the cut blade, and the restricting member is moved after the cutting blade has moved in the direction of extracting a certain distance. It may comprise a restraining member actuating mechanism that actuates in the direction in which the cut and raised pieces are released.

  Here, the “restraint member” is any member provided separately from the insertion member in order to keep the cut and raised piece inserted into the window of the cutting blade inserted in the window. The place where the restraining member is provided may be any place such as the cutting blade side, the punching blade side, or the main body side.

  In such a case, the restraining member is not actuated in the direction in which the cut and raised pieces are released until the cutting blade moves in the direction of extracting a certain distance by the action of the restraining member operating mechanism. Therefore, by setting this constant distance in various ways, it is possible to increase the degree of freedom of timing for operating the restraining member in the direction in which the cut and raised pieces are released. Therefore, it is possible to provide a binding machine that can bind sheets reliably without problems such as an excessive force applied to the cut and raised pieces and tearing or an increase in energy required for operation.

  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 a first embodiment of the present invention. The top view which shows the binding machine of the embodiment. AA line sectional view in FIG. The disassembled perspective view which shows the principal part of the embodiment. The disassembled perspective view which shows the principal part of the embodiment. Action explanatory drawing which abbreviate | omits and shows in the BB sectional view in FIG. Action explanatory drawing which abbreviate | omits and shows in the BB sectional view in FIG. FIG. 3 is an operation explanatory view partially omitted from the cross section taken along the line CC in FIG. 2. FIG. 3 is an operation explanatory view partially omitted from the cross section taken along the line DD in FIG. 2. FIG. 3 is an operation explanatory view partially omitted from the cross section taken along the line DD in FIG. 2. FIG. 3 is an operation explanatory view partially omitted from the cross section taken along the line DD in FIG. 2. FIG. 3 is an operation explanatory view partially omitted from the cross section taken along the line DD in FIG. 2. FIG. 3 is an operation explanatory view partially omitted from the cross section taken along the line DD in FIG. 2. FIG. 3 is an operation explanatory view partially omitted from the cross section taken along the line DD in FIG. 2. The top view which shows the binding machine of 2nd Embodiment of this invention (corresponding to FIG. 2). The disassembled perspective view which shows the principal part of the embodiment (corresponding to a part of FIG. 5). Operation | movement explanatory drawing shown in the EE sectional view in FIG. Operation | movement explanatory drawing shown in the EE sectional view in FIG. Action | operation explanatory drawing shown by the FF sectional view in FIG. 15 (corresponding to FIG. 9). Action | operation explanatory drawing shown by the FF sectional view in FIG. 15 (corresponding to FIG. 10). Action | operation explanatory drawing shown by the FF sectional view in FIG. 15 (corresponding to FIG. 11). Action | operation explanatory drawing shown by the FF sectional view in FIG. 15 (corresponding to FIG. 12). Action | operation explanatory drawing shown by the FF sectional view in FIG. 15 (corresponding to FIG. 13). Action | operation explanatory drawing shown by the FF sectional view in FIG. 15 (corresponding to FIG. 14). Explanatory drawing which shows typically the principal part of the binding machine of the modification of this invention. Explanatory drawing which shows typically the principal part of the binding machine of the modification of this invention. Explanatory drawing which shows typically the principal part of the binding machine of the modification of this invention. Explanatory drawing which shows typically the principal part of the binding machine of the modification of this invention. Explanatory drawing which shows typically the principal part of the binding machine of the modification of this invention.

<First Embodiment (FIGS. 1 to 14)>
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 to 3, the binding machine 1 forms punch holes P1 and cut holes P2 in a plurality of sheets P, and cuts and raises the cut and raised pieces P5 cut out from the punch holes P1. The booklet B can be made by binding the plural sheets of paper P to each other by being inserted through the hole P2.

  As shown in FIGS. 1 to 3, this booklet B is formed by bundling a plurality of sheets P, and these sheets P are joined to each other at one joint portion P3 set on the binding side. Yes. The joint portion P3 includes a punching hole P1 formed in each paper P by a punching blade penetrating from one side Pa of the paper P, and a lifting cut formed in each paper P adjacent to the punching hole P1. It comprises a hole P2 and a cut and raised piece P5 cut and raised from the punching hole P1 to the other side Pb of the paper P. The leading edge P51 side of the cut and raised piece P5 is passed through the cut hole P2 and led to the one surface Pa side of the paper P, whereby the binding source sides of the plurality of paper P are joined to each other. .

  As shown in FIGS. 1 to 3, the cut and raised piece P <b> 5 has a shape in which the distal end swells, specifically, an arrow shape as a whole, and a proximal end region on the proximal end P <b> 52 side with the boundary P <b> 53 interposed therebetween. In addition to P54, a distal end region P55 wider than the proximal end region P54 is provided on the distal end P51 side. The cut and raised piece P5 can be variously modified such as a tongue piece having one end having a semicircular arc shape, and is not limited to the one in the present embodiment.

  The punching hole P1 has a size and shape corresponding to the cut and raised piece P5 as shown in FIGS. 1 to 3, and immediately after drilling by the punching blade 42, a slit corresponding to the shape of the punching blade 42 is provided. After the cut and raised piece P5 is cut and raised, the space is an elongated hole having an arrow shape corresponding to the shape of the cut and raised piece P5. Further, a slit-shaped escape portion P6 for suppressing breakage extending from both sides of the base end of the cut and raised piece P5 is provided on the base end side of the punching hole P1, that is, in the vicinity of the base end P52 of the cut and raised piece P5. The punching hole P1 can be variously changed and is not limited to the one in the present embodiment.

  On the other hand, as shown in FIGS. 1 to 3, the cut hole P2 extends in the direction of the punching hole P1 from the first slit P21 for mainly engaging the cut and raised piece P5 and from the middle of the first slit P21. And a second slit P22 paired in the left-right direction. The cut hole P2 can be variously changed and is not limited to the one in the present embodiment.

  The binding machine 1 used when binding the paper P in this way will be described with reference to FIGS. 1, 2, and 4 to 14.

  As shown in FIGS. 1, 2, and 6 to 14, the binding machine 1 includes a punching blade 42 that forms a punching hole P1 while forming cut and raised pieces P5 on a plurality of sheets P, and a punching blade 42. A cutting blade 52 that is provided adjacent to the blade 42 and is provided with a cut hole P2 for locking the tip P51 side of the cut and raised piece P5, and a main body 3 that holds the cutting blade 42 and the cutting blade 52. A punch base 2 disposed in the main body 3 via a paper insertion gap 10, an inner cam 43 as an insertion member for inserting the cut and raised piece P5 into the window 523 of the cutting blade 52, The inner cam 43 is operated in the forward direction in which the cutting blade P5 is inserted into the window 523 when the cutting blade 42 and the cutting blade 52 have passed through the paper P, and the cutting blade 52 is pulled out by a certain distance. After moving to the inner cam 43, the cut and raised piece P5 is released. Formed by including an insertion member actuating mechanism 7 for operating in the opposite direction to. In other words, the binding machine 1 includes a main body having a punch base 2 on which the paper P is placed on an upward surface and a downward surface that forms a paper insertion gap 10 between the upward surface of the punch base 2. 3, a first blade unit 4 and a second blade unit 5 held in the main body 3, a first blade unit 4 having a punching blade 42 and a second blade having a cutting blade 52 A blade return coil spring 11 as a blade return elastic body for returning the unit 5 to the retracted position (s), which is a position before the drilling operation, and the first blade unit 4 and the second blade mounted on the main body 3. The operation lever 6 for operating the blade unit 5 and the side gauge 8 provided to be rotatable with respect to the side surface of the punch base 2 are provided. The side gauge 8 aligns the edge of the paper P in order to form the joint portion P3 at an appropriate location on the paper P, and is shown in FIGS. 1 and 2 and omitted in other drawings. .

  As shown in FIGS. 1, 2, 4, and 6 to 14, the punch base 2 includes a base frame 21, a punch plate 22 provided in the base frame 21 and facing the paper insertion gap 10, and the punch base 22. A paper escape 23 for escaping the paper P after binding operation in close contact with the plate 22 in a direction away from the punch plate 22, and a bottom cover 24 for concealing the lower surface side of the base frame 21 including the paper escape 23. It has.

  As shown in FIGS. 1, 2, 4 and 6 to 14, the base frame 21 has a main body attaching portion 211 for attaching the main body 3 to the rear portion, and inserts the punch plate 22 into the front portion. A plate exposing window 212 for exposing to the gap 10 side is provided, and a latch for latching the end of the paper P inserted into the paper insertion gap 10 at the boundary between the rear portion and the front portion. A wall 213 is provided. The base frame 21 is integrally formed of synthetic resin. The main body attaching portion 211 has a flat portion 214 for attaching the lower end of the main body 3, and a plurality of bolt insertion holes 215 are formed through the flat portion 214.

  As shown in FIGS. 1, 2, 4, and 6 to 14, the punch plate 22 cooperates with the punching blade 42 to punch a punching hole P <b> 1 and a relief portion P <b> 6 in the paper P. And a passage hole 222 for making a cut hole P2 in the paper P in cooperation with the cutting blade 52, and a presser passage hole 223 for a projection 231 of a paper escape 23 to be described later to pass therethrough. It is made of metal. The punch plate 22 is attached to the base frame 21. More specifically, the punch plate 22 has a function as an anvil, and has a perforated portion 221 that is a through hole, a passage hole 222, and a presser passage hole 223, and inserts paper through the plate display window 212. A mounting bar 224 that is attached to the lower surface side of the base frame 21 is provided at the peripheral edge thereof. Specifically, the front end portion of the punch plate 22 is attached to the base frame 21 by engaging the front end portion of the mounting rod 224 with an engaging portion (not shown) of the base frame 21. On the other hand, a plurality of bolt insertion holes 225 are formed in the rear end portion of the mounting rod 224. With the bolt insertion holes 225 aligned with bolt insertion holes (not shown) of the main body 3, the rear end portion is the base. It is attached to the lower surface of the frame 21. The punch plate 22 and the main body 3 are fastened to the base frame 21 by screwing and tightening bolts 20a inserted through the bolt insertion holes 215 and 225 from below into nuts (not shown) provided on the main body 3 side. It can be fixed.

  As shown in FIGS. 4 and 6 to 14, the paper escape 23 is for releasing the paper P that is in close contact with the punch plate 22 after the binding operation in a direction away from the punch plate 22. The paper escape 23 includes a plurality of protrusions 231 that are elastic pressing members that penetrate the punch plate 22 and protrude into the paper insertion gap 10, and the plurality of protrusions 231 are connected to the paper insertion gap 10. And a leaf spring 232 which is an elastic body for release that is elastically urged in a protruding direction. These protrusions 231 and the leaf spring 232 are integrally formed of synthetic resin.

  As shown in FIGS. 1, 4, and 6 to 14, the main body 3 includes a housing 31 that holds the first blade unit 4 and the second blade unit 5 so as to be movable up and down, and a front surface and a bottom surface of the housing 31. And a metal frame 32 that covers both side surfaces, and a rear cover 33 that is mounted on the rear side of the metal frame 32.

  As shown in FIG. 4 and FIGS. 6 to 14, the housing 31 includes a bottom wall 35, a front wall 36, a rear wall 37, and left and right side walls 38. The bottom wall 35 extends rearward from the rear wall 37. The first blade unit 4 and the second blade unit 5 are accommodated in a space 39 surrounded by the bottom wall 35, the front wall 36, the rear wall 37, and the left and right side walls 38. The housing 31 is integrally formed of synthetic resin. The bottom wall 35 has an opening 351 through which the punching blade 42 and the cutting blade 52 pass. A locking member 352 for locking an arm 433 of an inner cam 43 described later is provided on the upper surface side of the bottom wall 35. Further, on the upper surface of the bottom wall 35, a cylindrical boss 353 having a through hole 354 in the center is provided. On the inner surfaces of the front wall 36 and the rear wall 37, there are guide portions 371 for guiding the first blade unit 4 and the second blade unit 5 to be movable up and down (the guide portion of the front wall 36 is not shown). Is provided. Further, on the inner surfaces of the front wall 36 and the rear wall 37, a latch member attaching portion 372 for attaching a latch member 34 described later (the latch member attaching portion of the front wall 36 is not shown) is provided. The left and right side walls 38 are respectively formed with long holes 382 for inserting a drive shaft 12 to be described later.

  As shown in FIGS. 4, 5, and 8 to 14, the latch member 34 that forms a pair includes a base end portion 341 that is attached to the front and rear latch member attaching portions 372 via a fastening member 30 a, and the base end portion 341. Elastically deformable plate-like elastic deformable portions 342 and 343 extending in the vertical direction from the end portion 341, and upper and lower claw portions 344 and 345 provided on the distal ends of the elastic deformable portions 342 and 343, respectively. The base end portion 341, the upper and lower elastically deforming portions 342 and 343, and the upper and lower claw portions 344 and 345 are integrally formed of synthetic resin.

  As shown in FIGS. 6 to 14, the metal frame 32 includes a bottom plate 321 attached to the lower surface of the bottom wall 35 of the housing 31, a front plate 322 attached to the outer surface of the front wall 36 of the housing 31, and the housing 31. And left and right side plates 323 attached to the outer surface of the left and right side walls 38 of the sheet metal. The bottom plate 321 corresponds to substantially the entire area of the bottom wall 35 of the housing 31, and includes a window 324 for exposing the opening 351 and the through hole 354 of the boss 353 to the paper insertion gap 10, the housing 31 and the punch plate 22. A pin insertion hole (not shown) for inserting a positioning pin for positioning the bolt 20a, and a bolt 20a for fastening the punch plate 22, the base frame 21 and the bottom wall 35 of the housing 31 together. A hole is provided. That is, the bolt inserted through the bolt insertion hole 225 of the punch plate 22, the bolt insertion hole 215 of the base frame 21, the bolt insertion hole of the metal frame 32, and the bolt insertion hole provided in the bottom wall 35 of the housing 31. The main body 3 is attached to the punch base 2 by 20a. On the side plate 323 of the metal frame 32, a vertical guide portion 325 for guiding the drive shaft 12 that drives the first blade unit 4 and the second blade unit 5 to be movable up and down, and a support shaft of the operation lever 6 described later. A front-rear guide portion 326 for supporting 65 in a rotatable and slidable manner is provided.

  As shown in FIGS. 4, 5, and 8 to 14, the first blade unit 4 is guided by the guide portions 371 and 381 of the housing 31 and can move up and down while maintaining a certain posture. From the member 41, the punching blade 42 attached to the first slide member 41, and the initial posture (s) that is arranged inside the punching blade 42 and fits in the punching blade 42, a part is outside the punching blade 42. An inner cam 43 pivotally supported by the first slide member 41 via a shaft 434 between the projecting rotation posture (r) and the inner cam 43 self-returning to the initial posture (s). And a coil spring 44 that is urged to rotate in the direction of rotation.

  As shown in FIGS. 4, 5, and 8 to 14, the first slide member 41 has a hollow block shape that opens downward, and is made of synthetic resin. A shaft holding portion 411 that rotatably holds the drive shaft 12 is provided on the upper surface of the first slide member 41, and an operating force applied to the operation lever 6 is transmitted via the drive shaft 12 to the first slide member. 41 is transmitted. On the front surface and the rear surface of the first slide member 41, an upper engaging recess 413 that can engage the claw portion 344 on the latch member 34 and a claw portion 345 below the latch member 34 are engaged. A possible lower engaging recess 414 is provided.

  As shown in FIGS. 2, 4, 5, and 8 to 14, the punching blade 42 forms an arrowhead-shaped cut and raised piece P5 on the paper P, and is punched into a sheet metal material. And is made by bending. The punching blade 42 includes a base end region forming portion 421 for forming the base end region P54 of the punching hole P1 and a base end region forming portion 422 for forming the tip end region P55 of the punching hole P1. The punching blade 42 of the present embodiment further includes an escape portion forming portion 423 for forming a slit-like escape portion P6 on the paper P.

  As shown in FIGS. 4 and 9 to 14, the inner cam 43 has a shaft 434 at the base end portion 431 and inserts a cut and raised piece P5 into the window 523 provided in the cutting blade 52 at the distal end portion 432. The shaft 434 is supported by the punching blade 42 and the first slide member 41. That is, the inner cam 43 is for inserting the cut and raised piece P5 into the window 523 of the cutting blade 52, and is held by the punching blade. An arm 433 for rotating the inner cam 43 protrudes from the base end 431 of the inner cam 43.

  As shown in FIGS. 4 to 14, the second blade unit 5 is guided by the guide portions 371 and 381 of the housing 31 and can move up and down while maintaining a certain posture, A cutting blade 52 attached to the two slide members 51 and a pair of paper pressers 53 provided adjacent to the cutting blade 52 for pressing the paper P in the direction of the punch base 2.

  As shown in FIGS. 4 to 14, the second slide member 51 has a hollow block shape that opens downward, and is made of synthetic resin. A shaft holding portion 511 that rotatably holds the drive shaft 12 is provided on the upper surface of the second slide member 51, and an operation force applied to the operation lever 6 is transmitted via the drive shaft 12 to the second slide member. 51 is transmitted.

  The cutting blade 52 forms a cut hole P2 composed of a slit having a getter shape. As shown in FIGS. 2 and 5 to 14, the sheet metal material is punched and bent. The first blade 521 for forming the first slit P21 and the second slit P22 extending in the direction of the punching hole P1 from the middle of the first blade 521 are formed. A second blade 522. The first blade 521 includes a window 523 for allowing the cut and raised piece P5 punched out from the paper P to pass therethrough and to engage the cut and raised piece P5.

  As shown in FIGS. 4 to 14, the paper presser 53 includes a fixing presser 531 for pressing the vicinity of the blade penetration position of the paper P and pressing it against the punch base 2, and the fixing presser 531 for the paper P And a pressing coil spring 532 which is a pressing elastic body that is elastically biased in the direction. The fixing pressing element 531 is integrally formed of synthetic resin. The maximum diameter of the fixing pressing element 531 is set to a value that can be slidably inserted into the through hole 354 of the boss 353 provided in the housing 31, and is approximately equal to the maximum diameter of the pressing coil spring 532. .

  As shown in FIGS. 2 and 4 to 14, the pair of blade restoring coil springs 11 have one end side held by the second slide member 51 and the other end side set on the bottom wall 35 of the housing 31. It is in contact.

  As shown in FIGS. 1, 2, and 6 to 14, the operation lever 6 has a support shaft 65 at the base end portion 61, an operation portion 62 at the distal end side, and a base end portion having the support shaft 65. The drive shaft 12 is mounted between 61 and the operation unit 62. The support shaft 65 is supported by the front / rear guide portion 326 of the metal frame 32 of the main body 3 so as to be rotatable and movable back and forth, and the drive shaft 12 can be moved up and down by the vertical guide portion 325 of the metal frame 32 of the main body 3. To support. The operation lever 6 includes a metal lever frame 63 and a lever cover 64 attached to the outside of the lever frame 63. The lever frame 63 is formed by bending a sheet metal material, and includes a top wall 66 and side walls 67 depending from both side edges of the top wall 66, and the support shaft 65 and the drive shaft are interposed between the side walls 67. 12 is attached.

  In the binding machine 1 described above, the inner cam 43 is operated in the positive direction in which the cutting and raising piece P5 is inserted into the window 523 at the stage where the cutting blade 42 and the cutting blade 52 penetrate the paper P, and the cutting is performed. After the blade 52 moves in the direction of extracting a certain distance, the insertion member operating mechanism 7 is provided to operate the inner cam 43 in the reverse direction in which the cut and raised piece P5 is released.

  As shown in FIGS. 4 to 14, the insertion member operating mechanism 7 operates the inner cam 43 in the forward direction by using the movement of the punching blade 42 in conjunction with the cutting blade 52 in the penetration direction. The interlocking mechanism 71 that operates the insertion member in the reverse direction using the movement of the blade 42 in the extraction direction, and the interlock between the cutting blade 52 and the extraction blade 42 are temporarily released, and the cutting blade 52 Is provided with a delay generator 72 for holding the punching blade 42 at the maximum penetration position (c) until it operates for a certain distance in the extraction direction from the maximum penetration position (c) where the paper P penetrates the paper P most deeply. It is.

  As shown in FIGS. 6 and 9 to 14, the interlocking mechanism 71 includes an arm 433 extending from the base end 431 of the inner cam 43, and the punching blade 42 provided in the main body 3 in the penetration direction. When this occurs, a locking member 352 that contacts the arm 433 and operates the front end 432 of the inner cam 43 in the forward direction, and a coil that is a return elastic member for operating the front end 432 of the inner cam 43 in the reverse direction. And a spring 44. In other words, the interlocking mechanism 71 contacts the arm 433 of the inner cam 43 and the arm 433 to rotate the inner cam 43 in the forward direction from the initial posture (s) to the rotating posture (r). A locking member 352 provided on the bottom wall 35 of the housing 31 and an inner cam that presses the arm 433 to rotate the inner cam 43 in the reverse direction from the rotation posture (r) to the initial posture (s). The main component is a return coil spring 44.

  As shown in FIGS. 4 and 6 to 14, the delay generation unit 72 operates the punching blade 42 to the maximum penetration position (c) in conjunction with the cutting blade 52, and the cutting blade 52 is most penetrated. The floating coupling element 73 that releases the interlocking of the punching blade 42 with the cutting blade 52 only during the movement from the position (c) in a certain distance withdrawing direction, and the cutting blade 52 is withdrawn from the most penetration position (c) by a certain distance. A holding element 74 that holds the punching blade 42 in the most penetrating position (c) while moving in the direction is provided. In other words, the loose coupling element 73 includes a long through hole 412 provided in the shaft holding part 411 of the first slide member 41 and a circle provided in the shaft holding part 511 of the second slide member 51. The configuration is mainly composed of a through hole 512 having a shape and a drive shaft 12 passing through the through holes 412 and 512. The holding element 74 is mainly composed of a lower engagement recess 414 provided on the front and rear surfaces of the first slide member 41 and a lower claw 345 engaged with the engagement recess 414. .

  Next, the operation of the binding machine 1 will be described with reference to FIGS.

  When the operation lever 6 is not operated, as shown in FIGS. 8 and 9, the first slide member 41 and the second slide member 51 are positioned at the upper limit positions, respectively, and the punching blade 42 and the cutting blade 52 are the original. Are held at the retracted position (s), which is the position of. The inner cam 43 maintains an initial posture (s) accommodated in the punching blade 42 held at the retracted position (s).

  In this state, a plurality of overlapped sheets P are inserted to the back of the sheet insertion gap 10 formed between the upward surface in the front portion of the punch base 2 and the downward surface in the front portion of the main body 3. .

  When the operation lever 6 is operated downward, the force applied to the operation lever 6 is transmitted to the drive shaft 12, and the blade return coil spring disposed between the main body 3 and the second slide member 51. The second slide member 51 is moved downward against the urging force of 11. Along with this, the cutting blade 52 and the paper presser 53 held by the second slide member 51 move downward.

  While the drive shaft 12 moves a certain distance (from FIG. 9 to FIG. 10), the claw portion 344 on the latch member 34 is engaged with the engagement recess 413 on the first slide member 41. Since the combined engagement state is maintained, the first slide member 41 does not move. That is, the through hole 412 provided in the shaft holding portion 411 of the first slide member 41 can guide the drive shaft 12 in the vertical direction, and the dimension from one end 412a to the other end 412b of the through hole 412 is Since it is larger than the diameter of the drive shaft 12, the drive shaft 12 floats in the through hole 412. Therefore, the force applied to the operation lever 6 is not transmitted to the first slide member 41 through the drive shaft 12 until the drive shaft 12 moves from the one end 412a side to the other end 412b side by a certain distance. Is.

  When the operation lever 6 is operated downward beyond the predetermined distance, the force applied to the operation lever 6 is transmitted to the first slide member 41 via the drive shaft 12, and the main body 3 and the first slide member 41 are transmitted. The upper elastic deformation portion 342 is elastically deformed against the urging force of the latch member 34 which is an elastic member disposed between the upper claw portion 344 and the first slide member 41. The engaged state with the recess 413 is released.

  In this way, after the drive shaft 12 has moved a certain distance, the force applied to the operation lever 6 is transmitted to the drive shaft 12 and, as shown in FIG. The slide member 51 moves downward. Accordingly, the cutting blade 42 held by the first slide member 41 moves downward, and the cutting blade 52 and the paper presser 53 held by the second slide member 51 move downward.

  Then, the tip of the fixing presser 531 of the paper presser 53 comes into contact with the paper P, and the fixing presser 531 presses and supports the paper P, so that the paper P can be easily penetrated through the punching blade 42 and the cutting blade 52. After holding the tension, the leading edges of the punching blade 42 and the cutting blade 52 are in contact with the paper P. In other words, the paper presser 53 acts to suppress the displacement and bending of the paper P and tension the paper P.

  Further, when the first blade unit 4 and the second blade unit 5 move downward, the punching blade 42 and the cutting blade 52 pass through the paper P as shown in FIG. A cut hole P2 is formed. At that time, the pressing coil spring 532 is compressed as the second slide member 51 is lowered, and the fixing pressing element 531 is strongly pressed against the paper P, and the paper P is pressed against the punch plate 22. It will be pressed. For this reason, the paper P in the vicinity where the punching blade 42 and the cutting blade 52 penetrate is firmly fixed by the paper presser 53, that is, the paper P is punched by the paper presser 53 with a tension. Note that the protrusion 231 of the paper escape 23 protruding from the punch plate 22 is elastically immersed by the force with which the paper P is pressed against the punch plate 22.

  When the punching blade 42 and the cutting blade 52 are further lowered after drilling, as shown in FIG. 12, the inner cam 43 is rotated by the contact between the arm 433 and the locking member 352 and the cut and raised piece P5 is pressed. The tip P51 side of the cut and raised piece P5 is inserted into the window 523 of the cutting blade 52. At this time, in this embodiment, the interference between the leading end P51 of the cut and raised piece P5 and the edge 524 on the front end side of the window 523 when the cut and raised piece P5 is inserted into the window 523 is minimized. Specifically, the contact between the tip P51 of the cut and raised piece P5 and the edge 524 of the window 523 at the time of inserting the cut and raised piece P5 into the window 523 is set to such an extent that the contact is lightly contacted. Therefore, the cutting and raising piece P5 can be inserted into the window 523 without applying an excessive force, and the breakage of the cutting and raising piece P5 and the break near the base end P52 of the cutting and raising piece P5 can be reduced.

  Further, since the paper P is pressed by the paper presser 53, the paper P is suitably suppressed from being drawn into the punching portion 221 and the passage hole 222 of the punch plate 22 as the punching blade 42 and the cutting blade 52 are lowered. ing. For this reason, the variation of the paper P and the occurrence of bending are suppressed, and the cut and raised piece P5 is appropriately pressed in the intended direction by the inner cam 43 and reliably inserted into the window 523 of the cutting blade 52. become.

  As described above, the cutting blade 52 moves linearly from the retracted position (s) to the most penetrating position (c) in proportion to the operating force applied to the operating lever 6. The cutting blade 42 stays at the retracted position (s) without moving while the cutting blade 52 moves for a certain distance, and then reaches the maximum position from the retracted position (s) in proportion to the operating force applied to the operation lever 6. It moves linearly to the penetration position (c). Further, the inner cam 43 maintains the initial posture (s) by the urging force of the coil spring 44 until the arm 433 comes into contact with the locking member 352, and then the operation force to the operation lever 6 is reduced. Proportionally, it rotates in the positive direction from the initial posture (s) to the rotating posture (r). It should be noted that the urging force of the latch member 34 in which the first slide member 41 is disposed between the main body 3 and the first slide member 41 until the punching blade 42 reaches the most penetrating position (c). Therefore, the lower elastic deformation portion 343 is elastically deformed, and the lower claw portion 345 and the engagement concave portion 414 below the first slide member 41 are engaged.

  Next, when the operation of the operation lever 6 is released, the second blade unit 5 is moved upward mainly by the urging force of the blade return coil spring 11, and the cutting blade 52 is extracted from the paper P. The first blade unit 4 to which the upward movement of the blade unit 5 is transmitted via the drive shaft 12 moves up behind the first blade unit 4 and the punching blade 42 is extracted from the paper P. Then, as shown in FIG. 14, the punching blade 42 and the cutting blade 52 return to the retracted position (s) which is the original state. At that time, the leading end P51 of the cut and raised piece P5 inserted into the window 523 of the cutting blade 52 is pulled out to the one surface Pa side of the paper P.

  The extraction operation of the cutting blade 42 and the cutting blade 52 will be described in detail as follows. That is, when the operation on the operation lever 6 is released from the state shown in FIG. 12, the second slide member 51 is moved upward by the urging force of the blade return coil spring 11. Accordingly, the drive shaft 12 connected to the upper end of the second slide member 51 moves upward. Further, the cutting blade 52 held by the second slide member 51 moves upward, and the release of the compressed coil spring 532 of the paper presser 53 held by the second slide member 51 starts. .

  While the drive shaft 12 moves a certain distance (from FIG. 12 to FIG. 13), the claw portion 345 below the latch member 34 is engaged with the engagement recess 414 below the first slide member 41. Since the combined engagement state is maintained, the first slide member 41 does not move. That is, the through hole 412 provided in the shaft holding portion 411 of the first slide member 41 can guide the drive shaft 12 in the vertical direction, and the dimension from one end 412a to the other end 412b of the through hole 412 is Since it is larger than the diameter of the drive shaft 12, the drive shaft 12 floats in the through hole 412. Accordingly, the force applied to the second slide member 51 is transmitted to the first slide member 41 via the drive shaft 12 until the drive shaft 12 moves from the other end 412b side to the one end 412a side by a certain distance. It is due to not. When the drive shaft 12 moves upward beyond the predetermined distance, the force applied to the second slide member 51 is transmitted to the first slide member 41 via the drive shaft 12, and the main body 3 and the first slide are moved. The lower elastic deformation portion 343 is elastically deformed against the urging force of the latch member 34 that is an elastic member disposed between the member 41 and the lower claw portion 345 and the first slide member 41 below the first slide member 41. The state of engagement with the engagement recess 414 is released.

  Thus, after the drive shaft 12 has moved by a certain distance, as shown in FIG. 13, the force applied to the second slide member 51 is transmitted to the drive shaft 12, and the first slide member 41 and The second slide member 51 is moved upward. Accordingly, the cutting blade 42 held by the first slide member 41 moves upward, and the cutting blade 52 and the paper presser 53 held by the second slide member 51 move upward.

  When the punching blade 42 and the cutting blade 52 are raised, the inner cam 43 is returned from the rotating posture (r) to the initial posture (s) by the biasing force of the coil spring 44. At this time, there is a timing at which the pushing portion 435 of the inner cam 43 and the edge 524 on the distal end side of the window 523 simultaneously contact the cut and raised piece P5 in a state where the cut and raised piece P5 is inserted into the window 523. That is, the cut-and-raised piece P5 inserted into the window 523 by the pushing portion 435 of the inner cam 43 is pressed by the pushing portion 435 of the inner cam 43 and kept in the inserted state, while the edge on the tip side of the window 523 is kept. 524 rises and is pressed by the edge 524 on the front end side of the window 523 while maintaining the insertion state. Therefore, when the cut and raised piece P5 is inserted, the cut and raised piece P5 is inserted after the cut and raised piece P5 is inserted even though the contact between the tip P51 of the cut and raised piece P5 and the window 523 of the cutting blade 52 is reduced. Since the tip P51 of P5 and the edge 524 of the window 523 of the cutting blade 52 are in contact with each other, they are firmly bound. That is, when the cut and raised piece P5 is inserted with little contact between the tip P51 of the cut and raised piece P5 and the window 523 of the cutting blade 52, the inner cam 43 that performs symmetrical movement in the forward and backward movements is used. In this case, there is a problem that the cut and raised piece P5 returns to the punching hole P1 side and the cut and raised piece P5 cannot be passed through the cut hole P2. The state where the P51 side is inserted into the window 523 can be reliably pulled into the cut hole P2.

  As described above, the cutting blade 52 moves linearly from the most penetrating position (c) to the retracted position (s) in proportion to the repulsive force of the blade returning coil spring 11. The cutting blade 42 stays at the most penetrating position (c) without moving while the cutting blade 52 moves by a certain distance, and then the most penetrating position (in proportion to the repulsive force of the blade returning coil spring 11). It moves linearly from c) to the retracted position (s). Further, the inner cam 43 maintains the rotational posture (r) until the contact between the arm 433 and the locking member 352 is released, and then the repulsive force of the blade return coil spring 11 is maintained. In proportion to the rotation posture (r) to the initial posture (s), it rotates in the reverse direction. The punching blade 42 has the biasing force of the latch member 34 disposed between the main body 3 and the first slide member 41 until the first slide member 41 reaches the retracted position (s). Accordingly, the upper elastic deformation portion 342 is elastically deformed, and the upper claw portion 344 and the engagement concave portion 413 on the first slide member 41 are engaged.

<Effect of this embodiment>
As described above, the binding machine 1 according to the present embodiment is adjacent to the punching blade 42 that forms the punching hole P1 while forming the cut and raised pieces P5 on a plurality of sheets of paper P. A cutting blade 52 provided with a cut hole P2 for locking the tip P51 side of the cut and raised piece P5, a main body 3 holding the cutting blade 42 and the cutting blade 52, and the main body 3 And the punch base 2 disposed via the paper insertion gap 10. The punching blade 42 and the cutting blade 52 held by the main body 3 are inserted into the paper insertion gap 10. The cutting blade 52 and the punching blade 42 in a state in which the leading end P51 side of the cut and raised piece P5 cut and raised to the punch base 2 side through the sheet P is engaged with the window 523 of the cutting blade 52. And so as to return to the main body 3 side, An inner cam 43 for inserting the cut and raised piece P5 into the window 523 of the cutting blade 52, and the inner cam 43 are formed by passing the raised piece P5 through the cut hole P2 and binding the paper P. The cam 43 is operated in the forward direction in which the cutting blade P5 is inserted into the window 523 when the cutting blade 42 and the cutting blade 52 have penetrated the paper P, and the cutting blade 52 has moved in the extraction direction by a certain distance. Since the insertion member actuating mechanism 7 for operating the insertion member in the reverse direction after which the cut and raised piece P5 is released is provided, the cut and raised piece P5 is broken by excessive force, and the energy required for the operation is increased. The paper P can be bound reliably without the problem of increasing the size.

  That is, in order to insert the cut and raised piece P5 into the window 523 without applying an excessive force to the cut and raised piece P5, the tip P51 of the cut and raised piece P5 and the edge 524 of the window 523 of the cutting blade 52 at the time of insertion It is conceivable that the contact is eliminated or the contact is lightly touched. However, in the case of a conventional insertion member (the punching blade in the above-mentioned patent document, corresponding to the inner cam 43 in the present embodiment), it rotates in the forward / reverse direction in conjunction with the movement of the cutting blade 52 in the forward / backward direction. Therefore, at the same time that the cutting blade 52 operates in the extraction direction from the most penetration position (c), the insertion member moves in the reverse direction. Therefore, there is a problem in that the cut and raised piece P5 inserted into the window 523 moves in the opposite direction to the movement at the time of insertion and comes out of the window 523 and cannot be bound well. The inventors of the present invention have made further investigations in order to achieve both reduction in energy for binding and binding with certainty, and as a result, the inner cam 43, which has been commonly used in the past, has been introduced into the cutting blade 52. Reviewing the movement that operates in the forward and backward direction in conjunction with the movement in the forward and backward direction, and making the movement of the cutting blade 52 and the movement of the inner cam 43 different from each other can eliminate the above-mentioned dilemma. I found it.

  In the present embodiment, the insertion member operating mechanism 7 has the inner cam 43 in the forward direction in which the cut and raised piece P5 is inserted into the window 523 when the punching blade 42 and the cutting blade 52 have penetrated the paper P. , And the inner cam 43 is operated in the reverse direction in which the cutting and raising piece P5 is released after the cutting blade 52 has moved in the extraction direction by a certain distance. ) And the most penetrating position (c), and the rotation operation performed between the initial posture (s) and the rotation posture (r) of the inner cam 43 can be made different from each other. Therefore, the conventional problem can be solved by changing the movement of the inner cam 43.

  In this embodiment, since the insertion member is the inner cam 43 held by the punching blade 42, the movement of the inner cam 43 is linked to the movement of the punching blade 42. That is, in this embodiment, the reciprocating operation between the retracted position (s) and the most penetrating position (c) in the cutting blade 52, and the reciprocating operation between the retracting position (s) and the most penetrating position (c) in the cutting blade 42. Since the blade units are different from each other, the blade unit can be moved separately in two.

  In particular, in the case of a so-called three-piece structure in which the cut and raised piece P5 is pushed out by an inner cam 43 different from the punching blade 42, the punching blade 42 and the inner cam 43 are formed of different materials. be able to. Specifically, the punching blade 42 can be easily adapted to a cutting operation by being formed of a sheet metal material, and can have rigidity. The inner cam 43 is formed of a synthetic resin material or the like, and can easily cope with complicated shapes such as the extruded portion 435, and can be pressed without damaging the cut and raised piece P5. .

  The insertion member operating mechanism 7 operates the inner cam 43 in the forward direction by using the movement of the punching blade 42 in conjunction with the cutting blade 52 in the penetration direction, and moves the punching blade 42 in the pulling direction. The interlocking mechanism 71 that operates the inner cam 43 in the reverse direction by using the interlocking mechanism between the cutting blade 52 and the punching blade 42 is temporarily released, and the cutting blade 52 penetrates the paper P most deeply. Since it includes a delay generation unit 72 for holding the punching blade 42 at the most penetrating position (c) until it operates a certain distance in the extracting direction from the most penetrating position (c), The inner cam 43 and the cutting blade 52 can be moved separately using the operation of the operation lever 6 in one direction.

  The interlocking mechanism portion 71 is in contact with the arm 433 extended from the base end portion 431 of the inner cam 43 and the arm 433 when the punching blade 42 provided in the main body 3 operates in the penetration direction. Since the locking member 352 for operating the front end 432 of the cam 43 in the forward direction and the return coil spring 44 for operating the front end 432 of the inner cam 43 in the reverse direction are provided, the rotation of the operation lever 6 is provided. The inner cam 43 can rotate in the forward direction from the initial posture (s) to the rotational posture (r) by using the operation force converted from the operation to the linear motion of the drive shaft 12, and the drive Using the repulsive force of the blade return spring converted into the linear motion of the shaft 12, the rotational motion in the reverse direction from the rotational posture (r) to the initial posture (s) can be performed. That.

  The delay generation unit 72 operates the cutting blade 42 to the most penetrating position (c) in conjunction with the cutting blade 52, and the cutting blade 52 moves in the direction of extracting a certain distance from the most penetrating position (c). The floating coupling element 73 that releases the interlocking of the punching blade 42 with the cutting blade 52 and the cutting blade 42 that is most penetrated while the cutting blade 52 moves in the extraction direction from the most penetration position (c) by a certain distance. Since the holding element 74 that holds the position (c) is provided, the punching blade 42, the inner cam 43, and the cutting blade 52 are interlocked using the operation of the operation lever 6 in one direction. Or make separate movements. In particular, in this embodiment, the floating coupling element 73 is configured by the through holes 412 and 512 provided in the shaft holding portions 411 and 511 and the drive shaft 12 inserted through these through holes 412 and 512. It is possible to realize the interlocking of the first blade unit 4 and the second blade unit 5 and the separate movement with a simple structure.

  In the present embodiment, the cut and raised piece P5 includes a proximal end region P54 and a distal end region P55 that is wider than the proximal end region P54, and the punching blade 42 includes the proximal end region P54. A binding machine 1 including the above-described insertion member operating mechanism 7 is provided with a proximal end region forming portion 421 for forming the distal end region P422 and a proximal end region forming portion 422 for forming the distal end region P55. Is more effective. That is, it is said that the cut-and-raised piece P5 having an irregular shape with the bulging tip P51 side pressed by the inner cam 43 on the distal end region P55 side rather than the proximal end region P54 in order to be surely inserted into the window 523 of the cutting blade 52. There is a request. Therefore, when the cut and raised piece P5 is inserted into the window 523, contact between the tip P51 of the cut and raised piece P5 and the tip 432 of the inner cam 43 and the edge 524 on the tip side of the window 523 of the cutting blade 52 is avoided as much as possible. However, when the inner cam 43 is interlocked with the movement of the cutting blade 52 as in the prior art, the cut and raised piece P5 inserted into the window 523 returns to the punching hole P1 side, Although the problem that it cannot be bound arises, if it is provided with the insertion member operating mechanism 7 as in this embodiment, such a problem can be solved.

  Further, the binding machine 1 according to the present embodiment is configured such that the punching blade 42 and the cutting blade 52 can be moved at different timings. In addition, it is possible to solve the problem of providing the binding machine 1 that can reliably bind the paper P without a problem that the energy required for the operation increases.

<Second Embodiment (FIGS. 15 to 24)>
Next, a second embodiment of the present invention will be described with reference to FIGS.

  As in the first embodiment described above, the binding machine 1 forms the punched holes P1 and the cut holes P2 in the plurality of sheets P, and cuts and raises the cut and raised pieces P5 cut out from the punched holes P1. The booklet B can be made by binding the plurality of sheets P to each other by being inserted through the hole P2, and the same or corresponding parts as those in the binding machine of the first embodiment are the same. The description will be omitted.

  As shown in FIGS. 15 to 24, the binding machine 1 according to the present embodiment includes the first blade unit 4 including the cutting blade 42 and the cutting blade 52 in addition to the blade return coil spring 11. A blade return assisting coil spring 46 is provided as a blade return elastic body for returning the second blade unit 5 to the retracted position (s) which is the position before the drilling operation. Each of the blade return assisting coil springs 46 has one end held by a cap member 45 slidable with respect to the first slide member 41, and the other end abutted against the bottom wall 35 of the housing 31. . The cap member 45 is made of synthetic resin, and has a shaft holding portion 451 that rotatably holds the drive shaft 12 on the upper surface thereof, and an operation force applied to the operation lever 6 causes the drive shaft 12 to move. It is transmitted to the cap member 45 having the through-hole 452 through. That is, the drive shaft 12 is elastically urged upward in a well-balanced manner by the pair of blade return coil springs 11 and the blade return assist coil springs 46.

  Note that the first slide member 41 of the present embodiment includes a coil insertion window through which the cap member 45 and the blade return assisting coil spring 46 are inserted, as shown in FIGS. Different from that of the first embodiment. That is, the first slide member 41 is not directly pressed by the blade return assisting coil spring 46.

  Further, on the front surface and the rear surface of the first slide member 41, as shown in FIGS. 16 to 18, an upper engaging recess 413 that can engage the claw portion 344 on the latch member 34, respectively, A lower engaging recess 414 with which the lower claw portion 345 of the latch member 34 can be engaged is provided, and a claw portion 344 provided on the upper side of the upper engaging recess 413 with respect to the latch member 34. An upper inclined portion 415 that can be in contact with each other, and a lower inclined portion 416 that is provided on the lower side of the lower engaging recess 414 and on which the lower claw portion 345 of the latch member 34 can come into contact are provided. The upper engaging recess 413 is mainly used when the drive shaft 12 is inserted through the first slide member 41. By engaging the upper claw portion 344, the first slide member 41 is used. Is suppressed from falling to the vicinity of the bottom wall 35 of the housing 31. After the drive shaft 12 is inserted, the first slide member 41 is dropped to a position where the upper claw portion 344 engages with the upper inclined portion 415. During normal operation, the upper claw portion 344 It is always positioned above the upper inclined portion 415. That is, the upper claw portion 344 is set so as not to engage with the upper engagement recess 413 except during assembly. Note that the base end portion 341 of the latch member 34 of the present embodiment is provided with a step portion 346 for assisting elastic deformation of the upper and lower claw portions 344 and 345.

  Further, as shown in FIGS. 17 and 18, the operation lever 6 of the present embodiment includes a hook portion 661 for holding an engaging portion 131 of the lock mechanism 13 described later on the top wall 66. In other words, the lock mechanism 13 for locking the operation lever 6 at a predetermined position is provided between the operation lever 6 and the main body 3. The lock mechanism 13 is configured to engage one engaging portion 131 provided on the operation lever 6 with the other engaging portion 132 provided on the main body 3. One engagement portion 131 is, for example, a loop-shaped member having a base end released, and the base end is suspended and supported rotatably on the lower surface side of the operation lever 6, specifically, the ceiling wall 66. When it is not engaged with the hook portion 661, it can be suspended by its own weight. That is, one engaging portion 131 is held and hooked on a hook portion 661 provided on the top wall 66 during normal use. The other engaging portion 132 has, for example, a hook shape provided in the housing 31 of the main body 3, and a guide inclined surface 133 for guiding the one engaging portion 131 to promote engagement on the upper surface thereof. It has. Thus, when the operating lever 6 is locked at a predetermined position with respect to the main body 3, the one engaging portion 131 is detached from the hook portion 661 and is hung and then brought closer to the other engaging portion 132. When the operating lever 6 is moved to the predetermined position, the guide is smoothly guided to a predetermined position by the guide inclined surface 133.

  Next, the operation of the binding machine 1 will be described with reference to FIGS.

  First, in a state where the operation lever 6 is not operated, as shown in FIG. 19, the first slide member 41 and the second slide member 51 are positioned at the upper limit positions, respectively, and the punching blade 42 and the cutting blade 52 are in their original positions. Each position is held at the retracted position (s). The inner cam 43 maintains an initial posture (s) accommodated in the punching blade 42 held at the retracted position (s). At this time, the drive shaft 12 is engaged with an upper end of the through hole 412 having a long hole shape of the first slide member 41, that is, one end 412 a, and the first slide member 41 is suspended by the drive shaft 12. It is in a supported state.

  In this state, a plurality of overlapped sheets P are inserted to the back of the sheet insertion gap 10 formed between the upward surface in the front portion of the punch base 2 and the downward surface in the front portion of the main body 3. .

  When the operation lever 6 is operated downward, the force applied to the operation lever 6 is transmitted to the drive shaft 12, and the drive shaft 12 is attached to the blade return coil spring 11 and the blade return assist coil spring 46. It is moved downward against the forces. As a result, the first slide member 41 holding the punching blade 42 and the second slide member 51 holding the cutting blade 52 and the paper presser 53 move downward.

  The first slide member 41 moves downward as the drive shaft 12 moves while the drive shaft 12 moves a certain distance. That is, the first slide member 41 moves downward in a state where the drive shaft 12 is locked to the upper end of the through hole 412 provided in the shaft holding portion 411 of the first slide member 41, that is, the one end 412a. In addition, if the punching blade 42 held by the first slide member 41 abuts on one surface Pa of the paper P while the first slide member 41 is moving downward, more than that of the first slide member 41. Movement downward is restricted. Then, the drive shaft 12 is loosened in the through hole 412, and the force applied to the operation lever 6 until the drive shaft 12 moves a certain distance from the one end 412 a side to the other end 412 b side causes the drive shaft 12 to move. Therefore, the first slide member 41 is not transmitted to the first slide member 41.

  In this way, after the drive shaft 12 has moved a certain distance, the force applied to the operation lever 6 is also transmitted to the first slide portion 41 via the drive shaft 12, and is transmitted to the first slide member 41. The punching blade 42 held and the cutting blade 52 held by the second slide member are inserted into the paper P. At that time, the leading edge of the fixing presser 531 of the paper presser 53 is in contact with the paper P, and the fixing presser 531 presses and supports the paper P, as shown in FIG. 52 penetrates the paper P, and a punching hole P1 and a cut hole P2 are formed in the paper P.

  When the punching blade 42 and the cutting blade 52 are further lowered after drilling, as shown in FIG. 22, the inner cam 43 is rotated by the contact between the arm 433 and the locking member 352 and the cut and raised piece P5 is pressed. The tip P51 side of the cut and raised piece P5 is inserted into the window 523 of the cutting blade 52. At this time, in this embodiment, the interference between the leading end P51 of the cut and raised piece P5 and the edge 524 on the front end side of the window 523 when the cut and raised piece P5 is inserted into the window 523 is minimized. Specifically, the contact between the tip P51 of the cut and raised piece P5 and the edge 524 of the window 523 at the time of inserting the cut and raised piece P5 into the window 523 is set to such an extent that the contact is lightly contacted. Therefore, the cutting and raising piece P5 can be inserted into the window 523 without applying an excessive force, and the breakage of the cutting and raising piece P5 and the break near the base end P52 of the cutting and raising piece P5 can be reduced. In this way, when the first slide member 41 reaches the lowest position, the lower claw portion 345 and the lower engagement recess 414 are engaged, and the first slide member 41 is lowered most. Held at the position. That is, before the first slide member 41 reaches the lowest position, the latch member 34 is temporarily elastically deformed outward by the guide action of the lower inclined portion 416, and finally the latch member 34. The lower claw portion 345 is engaged with the lower engagement recess 414.

  Next, when the operation of the operation lever 6 is released, the second blade unit 5 and the drive shaft 12 are moved upward by the urging force of the blade return coil spring 11 and the blade return assist coil spring 46, and the cutting blade 52 is moved. The paper is extracted from the paper P, and the first blade unit 4 is moved up behind the second blade unit 5 to extract the paper cutting blade 42 from the paper P. Then, as shown in FIG. 24, the punching blade 42 and the cutting blade 52 return to the retracted position (s) which is the original state. At that time, the leading end P51 of the cut and raised piece P5 inserted into the window 523 of the cutting blade 52 is pulled out to the one surface Pa side of the paper P.

  The extraction operation of the cutting blade 42 and the cutting blade 52 will be described in detail as follows. That is, when the operation of the operation lever 6 is released from the state shown in FIG. 22, the drive shaft 12 and the second slide member 51 begin to move upward by the blade return coil spring 11 and the blade return assist coil spring 46. . In the initial stage of the movement, the claw portion 345 under the latch member 34 is engaged under the first slide member 41 while the drive shaft 12 moves a certain distance (from FIG. 22 to FIG. 23). Since the engaged state engaged with the recess 414 is maintained, the first slide member 41 does not move. That is, the through hole 412 provided in the shaft holding portion 411 of the first slide member 41 can guide the drive shaft 12 in the vertical direction, and the dimension from one end 412a to the other end 412b of the through hole 412 is Since it is larger than the diameter of the drive shaft 12, the drive shaft 12 floats in the through hole 412. Therefore, the force applied to the second slide member 51 through the drive shaft 12 until the drive shaft 12 moves from the lower end, that is, the other end 412b side to the upper end, ie, the one end 412a side, by a certain distance. This is because it is not transmitted to the slide member 41. When the drive shaft 12 moves upward beyond the predetermined distance, the force applied to the second slide member 51 is transmitted to the first slide member 41 via the drive shaft 12, and the main body 3 and the first slide are moved. The lower elastic deformation portion 343 is elastically deformed against the urging force of the latch member 34 that is an elastic member disposed between the member 41 and the lower claw portion 345 and the first slide member 41 below the first slide member 41. The state of engagement with the engagement recess 414 is released. That is, by this operation, the first slide member 41 holding the cutting blade 42 and the inner cam 43 starts to operate in the drawing direction at a later timing than the second slide member 51 holding the cutting blade 52. become.

  In this way, after the drive shaft 12 has moved a certain distance, the drive shaft 12, the first slide member 41, and the second slide member 51 are integrally moved upward as shown in FIG. . Accordingly, the cutting blade 42 held by the first slide member 41 moves upward, and the cutting blade 52 and the paper presser 53 held by the second slide member 51 move upward.

  In the initial stage of movement in the extraction direction, the cutting blade 52 starts moving in the extraction direction together with the inner cam 43 after the cutting blade 52 has moved in the extraction direction by a certain distance. Although the contact is reduced, the unreasonable return of the cut and raised piece P5 can be prevented, and a reliable binding state can be realized. More specifically, when the punching blade 42 and the cutting blade 52 are raised, the inner cam 43 is returned from the rotating posture (r) to the initial posture (s) by the biasing force of the coil spring 44. At this time, there is a timing at which the pushing portion 435 of the inner cam 43 and the edge 524 on the distal end side of the window 523 simultaneously contact the cut and raised piece P5 in a state where the cut and raised piece P5 is inserted into the window 523. That is, the cut-and-raised piece P5 inserted into the window 523 by the pushing portion 435 of the inner cam 43 is pressed by the pushing portion 435 of the inner cam 43 and kept in the inserted state, while the edge on the tip side of the window 523 is kept. 524 rises and is pressed by the edge 524 on the front end side of the window 523 while maintaining the insertion state. Therefore, when the cut and raised piece P5 is inserted, the cut and raised piece P5 is inserted after the cut and raised piece P5 is inserted even though the contact between the tip P51 of the cut and raised piece P5 and the window 523 of the cutting blade 52 is reduced. Since the tip P51 of P5 and the edge 524 of the window 523 of the cutting blade 52 are in contact with each other, they are firmly bound. That is, when the cut and raised piece P5 is inserted with little contact between the tip P51 of the cut and raised piece P5 and the window 523 of the cutting blade 52, the inner cam 43 that performs symmetrical movement in the forward and backward movements is used. In this case, there is a problem that the cut and raised piece P5 returns to the punching hole P1 side and the cut and raised piece P5 cannot be passed through the cut hole P2. The state where the P51 side is inserted into the window 523 can be reliably pulled into the cut hole P2.

<Effects of Second Embodiment>
The binding machine 1 according to the present embodiment can obtain the same effect as or equivalent to the binding machine 1 of the first embodiment.

  In particular, according to the binding machine 1 of the present embodiment, the upper claw portion 344 and the upper engagement concave portion 413 are not engaged in the initial state, and the first blade unit 4 is not connected to the upper claw portion 344. Since it is dropped downward, it is not necessary to apply energy for releasing the engagement state between the upper claw portion 344 and the upper engagement recess 413. Therefore, it can be operated with a smaller operating force than that of the first embodiment.

  Further, since the blade assisting coil spring 46 is disposed on the first blade unit 4 side, the drive shaft 12 can be lifted upward with a good balance. In particular, in the present embodiment, since one drive shaft 12 extending in the left-right direction is urged at three points by three coil springs 11 and 46, the first slide member 41 and the second slide member 51 are The inclination to the left-right direction and the inclination to the front-back direction can be suppressed.

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

<Modification (FIGS. 25 to 29)>
The insertion member operating mechanism is not limited to the one described above, and may be, for example, as schematically shown in FIGS. That is, in the first and second embodiments described above, the configuration in which the punching blade and the cutting blade can be moved at different timings has been described, but the punching blade and the cutting blade are the same. It may be moved at the timing. Hereinafter, parts that are the same as or equivalent to those of the above-described embodiment are denoted by the same reference numerals with “A” at the head, and detailed description thereof is omitted.

  In this binding machine, the protruding and retracting directions of the cutting blade A42 and the cutting blade A52 are opposite to those in the above-described embodiment, and the cutting blade A42 and the cutting blade A52 are in a retracted position and a most penetrating position (c) (not shown). It always operates in conjunction with. Then, the insertion member operating mechanism A7 operates the inner cam A43 in the forward direction using the movement in the penetration direction of the cutting blade A42 interlocked with the cutting blade A52, and moves the cutting blade A42 in the extraction direction. The interlocking mechanism A71 that operates the inner cam A43 in the reverse direction by using the cutting blade A52, the cutting blade A42, and the inner cam A43 is temporarily released to cut the cutting blade A52 and the cutting blade A42. Is provided with a delay generation unit A72 for holding the inner cam A43 in a rotational posture (r) until it operates for a certain distance in the extraction direction from the most penetrating position (c) that penetrates deeply into the paper AP. It is.

  The interlocking mechanism part A71 is the same as that in the above embodiment, and a description thereof will be omitted. The delay generation unit A72 operates the punching blade A42 to the most penetrating position (c) in conjunction with the cutting blade A52, and the cutting blade A52 and the punching blade A42 are removed from the most penetrating position (c) by a certain distance. The movable coupling element A73 that releases the interlocking of the inner cam A43 with the cutting blade A52 and the cutting blade A42, and the cutting blade A52 and the cutting blade A42 are withdrawn from the most penetrating position (c) by a certain distance only while moving in the direction. And a holding element A74 that holds the inner cam A43 in the rotational posture (r) while moving in the direction.

  Specifically, the loose coupling element A73 includes a long hole A424 provided in the punching blade A42 so that the inner cam A43 can move in the vertical direction relative to the punching blade A42, and the long hole A424. This is mainly composed of an axis A434 of an inner cam A43 that can slide in the vertical direction. The holding element A74 is a pin provided on the distal end side of the arm A433 of the inner cam A43 engaged with the recess A303 of the engaging claw provided so as to be rotatable with respect to the main body A3 via the axis A301. A436 is a main constituent. The engaging claw A30 includes a rotating arm A302 that rotates about an axis A301, and the concave portion A303 provided on the distal end side of the rotating arm A302. The moving arm A302 is always urged by the urging means (not shown) toward the formation side of the recess A303, that is, counterclockwise.

  If it is such, if the operation lever which is not illustrated is operated, as shown in FIG. 25, the cutting blade A42 and the cutting blade A52 will move upward, and the punching hole AP1 and the cutting hole AP2 will be formed. When the punching blade A42 and the cutting blade A52 are further raised after drilling, the inner cam A43 is rotated by the contact between the arm A433 and the locking member A352, and the cutting and raising piece AP5 is pressed. The tip side is inserted into the window A523 of the cutting blade A52. At this time, similarly to the above-described embodiment, the interference between the leading end of the cut and raised piece AP5 and the edge A524 on the front end side of the window A523 when the cut and raised piece AP5 is inserted into the window A523 is minimized. Yes. In the present embodiment, as shown in FIG. 26, the pin A436 provided at the tip of the arm A433 of the inner cam A43 is engaged with the engaging cam as shown in FIG. It moves downward against the urging force of the claw A30. When the cutting blade A52 and the cutting blade A42 reach the most penetrating position (c), as shown in FIG. 27, the revolving force of the urging means for urging the engaging claw A30 causes the rotating arm A302 to return to the original position. Then, the recess A303 formed at the tip of the rotating arm A302 and the pin A436 of the arm A433 are engaged.

  Next, when the operation of the operation lever is released, the cutting blade A52 and the cutting blade A42 are moved downward by an urging force such as a blade return coil spring (not shown). While the cutting blade A52 and the cutting blade A42 move by a certain distance, the inner cam A43 moves downward while maintaining the engagement state between the pin A436 and the recess A303. Therefore, even though the cutting blade A52 is moving in the extraction direction, the inner cam A43 is cut in the turning posture (r) so as to keep the cutting piece AP5 inserted in the window A523. The piece AP5 is pressed. When the cutting blade A52 and the cutting blade A42 move downward beyond the predetermined distance, the rotating arm A302 rotates clockwise against the urging force of the urging means, and the pin A436 and the recess A303 The engaged state is released. Thus, after the cutting blade A52 and the cutting blade A42 have moved by a certain distance, the inner cam A43 rotates while moving downward as the cutting blade A42 and the cutting blade A52 move downward. It rotates in the reverse direction from the posture (r) to the initial posture.

  If it is such, the effect according to the said embodiment is acquired. Furthermore, if it is a thing like this modification, it will become possible to unitize the cutting blade A42 and the cutting blade A52, and the most penetration position (c) from the retracted position of the cutting blade A42 and the cutting blade A52. There is no need to increase the stroke.

<Other variations>
The insertion member operating mechanism of the present invention is such that the locking member with which the arm of the inner cam abuts is movably attached to the main body in order to change the rotation timing of the inner cam in the forward and reverse directions. It may be. Further, the movement in the forward direction or the reverse direction is not limited to the rotation operation, and may be a slide operation or the like.

  In the above-described embodiment, the loose coupling element mainly includes a through hole provided in the first and second slide members and a drive shaft inserted into the through hole. May be the opposite. That is, the loose coupling element may include a pin provided on the first and second slide members, and a through hole or a recess provided in the main body into which the pin is movably fitted.

  Moreover, the effect according to the above-described embodiment can be obtained by a member other than the insertion member such as an inner cam. That is, the binding machine has an insertion member for inserting the cut and raised piece into the window of the cutting blade, and a cut and raised piece provided separately from the insertion member and inserted into the window of the cutting blade is inserted into the window. A constraining member for keeping the constrained state, and the cutting and cutting pieces at the stage where the cutting member and the cutting blade pass through the paper and the insertion member inserts the cutting and cutting pieces into the window of the cutting blade. And a restraining member actuating mechanism that actuates the restraining member in the direction in which the cut and raised pieces are released after the cutting blade is moved in the extracting direction by a certain distance. The insertion member may perform a conventional movement or may perform a movement according to the above-described embodiment. In other words, the conventional movement is a symmetric movement in the front-rear direction around the most penetrating position of the cutting blade by interlocking the forward and backward movement of the cutting blade with the forward and backward movement of the insertion member. On the other hand, the movement according to the above-described embodiment means that a part in which the advancement / retraction operation of the cutting blade is not interlocked with the operation of the insertion member and the insertion member is moved in the reverse direction after the cutting blade moves in the extraction direction. It is like operating.

  The constraining member is constrained by the constraining member operating mechanism when the punching blade and the cutting blade penetrate the paper and the insertion member inserts the cutting and cutting piece into the window of the cutting blade. Any one may be used as long as it is actuated in the direction and is actuated in the direction in which the cut-and-raised piece is released after the cutting blade has moved in the extraction direction by a certain distance. A member attached to the window to change the position of the edge of the blade window, an inner cam attached to a punching blade different from the inner cam serving as the insertion member, or the like may be used. That is, the restraining member may be attached to any of the cutting blade side, the cutting blade side, and the main body side.

  In addition, as a specific example of the configuration in which the punching blade and the cutting blade can be moved at different timings, a first blade unit having a punching blade and a second blade having a cutting blade The unit is composed of separate blade units, but the cutting blade and cutting blade attached to the same blade unit are moved at different times, or the cutting blade and cutting blade attached to separate blade units are moved. The insert blade may be moved at different timings by operating with different operating bodies.

  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 cut and raised pieces, and a plurality of cutting blades for forming a plurality of cut and raised pieces. The number of cutting blades corresponding to the plurality of cutting and raising pieces may be provided.

  Further, the protruding and retracting directions of these cutting blades and punching blades are not limited to those in which the protruding side of the cutting blade and the cutting blade is downward and the immersion side is upward, as shown in the above-described embodiment. It is also possible to use the cutting blade and the cutting blade as the upper side and the immersive side as the lower 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 upward, or the punching hole and the cut hole are moved by moving in the left-right direction or the oblique direction. It 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, “upward”, “downward”, “upward”, “downward”, “upper surface”, or “lower surface” in the above-described embodiments are respectively referred to as “downward”, “upward”, “downward”. , “Rise”, “lower surface”, or “upper 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.

  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.

P, AP: paper P1, AP1 ... punching holes P2, AP2 ... cut holes P5, AP5 ... cut and raised pieces P51, AP51 ... tip P54 ... base end region P55 ... tip end region 1 ... binding machine 10 ... paper insertion gap 2 ... Punch base 3, A3 ... Main body 352, A352 ... Locking member 42, A42 ... Cutting blade 421 ... Base end region forming portion 422 ... Base end region forming portion 43, A43 ... Inner cam (c) ... Most penetrating position 431, A431 ... base end part 432, A432 ... tip part 433, A433 ... arm 52, A52 ... cutting blade 523, A523 ... window 7, A7 ... insertion member operating mechanism 71, A71 ... interlocking mechanism part 72, A72 ... delay generating part 73 , A73: Free coupling element 74, A74: Holding element

Claims (7)

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 main body that holds the cutting blade and the cutting blade, and a punch base disposed on the main body via a paper insertion gap, the cutting blade held by the main body. In the state where the leading edge side of the cutting piece cut and raised on the punch base side through the paper inserted in the paper insertion gap is engaged with the window of the cutting blade, A binding machine that pulls the cut and raised pieces through the cut holes and binds the paper by pulling out the cutting blade and the punching blade so as to return to the main body side,
An insertion member for inserting the cut and raised piece into the window of the cutting blade, and the insertion member is operated in the positive direction in which the cut and raised piece is inserted into the window when the cutting blade and the cutting blade penetrate the paper. A binding machine comprising: an insertion member actuating mechanism that actuates the insertion member in a reverse direction in which the cut and raised pieces are released after the cutting blade has moved in a direction of extracting a predetermined distance. The binding machine according to claim 1, wherein the insertion member is an inner cam held by the punching blade. The insertion member operating mechanism operates the insertion member in the forward direction using the movement of the punching blade in conjunction with the cutting blade in the forward direction, and the insertion using the movement of the punching blade in the extraction direction. The interlocking mechanism that operates the member in the reverse direction and the interlocking between the cutting blade and the punching blade are temporarily released, and the cutting blade operates for a certain distance in the pulling direction from the most penetrating position where the cutting blade penetrates deepest into the paper. The binding machine according to claim 2, further comprising a delay generation unit for holding the punching blade at the most penetrating position. The interlocking mechanism portion extends from the base end portion of the inner cam, and when the punching blade provided in the main body operates in the penetration direction, the arm portion comes into contact with the arm to move the distal end portion of the inner cam in the forward direction. The binding machine according to claim 3, further comprising: an engaging member to be operated; and a return elastic member for operating the tip of the inner cam in the reverse direction. The delay generation unit operates the punching blade in conjunction with the cutting blade to the most penetrating position, and only when the cutting blade moves in the direction of extracting a certain distance from the penetrating position with respect to the cutting blade. 5. A floating coupling element for releasing the interlocking and a holding element for holding the cutting blade in the most penetrating position while the cutting blade moves in the extracting direction from the most penetrating position by a certain distance. The binding machine described. The cut and raised piece includes a proximal end region and a distal end region wider than the proximal end region, and the punching blade includes a proximal end region forming portion for forming the proximal end region; A binding machine according to claim 1, 2, 3, 4, or 5, further comprising a tip region forming part for forming the tip region. 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 main body that holds the cutting blade and the cutting blade, and a punch base disposed on the main body via a paper insertion gap, the cutting blade held by the main body. In the state where the leading edge side of the cutting piece cut and raised on the punch base side through the paper inserted in the paper insertion gap is engaged with the window of the cutting blade, A binding machine that pulls the cut and raised pieces through the cut holes and binds the paper by pulling out the cutting blade and the punching blade so as to return to the main body side,
An insertion member for inserting the cut and raised piece into the window of the cutting blade, and a cut and raised piece provided separately from the insertion member and inserted into the window of the cutting blade to keep the inserted state in the window The restraining member and the restraining member are operated in a direction in which the cutting and cutting blades are restrained when the cutting blade and the cutting blade penetrate the paper and the insertion member inserts the cutting and cutting pieces into the window of the cutting blade. And a binding member actuating mechanism for operating the restraining member in a direction in which the cut and raised pieces are released after the cutting blade has moved in the extraction direction by a certain distance.

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