JP2017209937A - Binding machine cutting blade - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a binding machine cutting blade high in freedom of designing a configuration capable of suppressing the cut end edge of a cut hole formed by the cutting blade from being caught in the cutting blade during the process of engaging a binding member with a sheet.SOLUTION: This binding machine cutting blade is provided with: a blade body provided, at a tip, with a blade tip that forms a cut hole by making relative reciprocating motion to the sheet to penetrate the sheet; a binding member insertion hole that is provided to the blade body so as to penetrate in a thickness direction and that is for inserting a binding member into the cut hole in a state where the belt-like binding member for biding sheet when the blade body is pulled out from the cut hole is engaged; and a gap-forming raised part that is separate from the blade body and that rises from the blade body in the thickness direction to form a gap by separating a pair of opposing cut end edges of the cut hole during passage of the binding member insertion hole through the cut hole.SELECTED DRAWING: Figure 22

Description

  The present invention relates to a cutting blade of a binding machine for binding sheets using a binding member.

  2. Description of the Related Art Conventionally, a binding machine that binds sheets using a binding member is known (see, for example, Patent Document 1).

  The cutting blade used in the conventional binding machine reciprocates relative to the paper, penetrates the paper during the forward movement process to form a cut hole, and forms one side of the paper during the backward movement process. A part of the binding member set in the paper is pulled into the other side of the paper. And the cutting blade was comprised with the single member which makes metal.

  However, since the cutting blade is made of metal, fine irregularities are often present on the surface. And, in the process of reciprocating the cutting blade with fine unevenness, the surface of the cutting blade and the cutting edge of the cut hole are caught, and the cutting blade cannot smoothly reciprocate on the paper There is. In particular, since the return movement of the cutting blade depends on the return force of the reaction force spring, the reaction force mechanism mainly composed of the reaction force spring may be increased in size.

JP-A-8-39959

  The present invention has been made paying attention to the above situation, and in the process of engaging the binding member with the paper, the cutting edge of the cut hole formed by the cutting blade is caught by the cutting blade. A binding machine cutting blade excellent in design freedom that can suppress the occurrence of the problem is provided.

  That is, the present invention has the following configuration.

  The invention according to claim 1 is a blade main body provided with a blade tip at its tip for forming a cut hole in the paper by reciprocating relative to the paper and penetrating the paper, and the blade main body in the thickness direction. A binding member insertion for inserting the binding member into the cut hole in a state in which the binding member forming a band shape for binding the paper when the blade body is extracted from the cut hole is engaged. A cutting edge that forms a pair opposed to the cut hole when the binding member insertion window passes through the cut hole by being separated from the window and the blade main body and protruding in the thickness direction from the blade main body A cutting blade of a binding machine, comprising a gap-forming raised portion for separating a gap and forming a gap.

  In the invention according to claim 2, the cut hole is provided with sub slits at both ends of the main slit, and the blade body is bent from the main blade for forming the main slit, and the main blade. The cutting blade of the binding machine according to claim 1, further comprising a sub blade for forming the sub slit extending.

  The invention according to claim 3 is the cutting blade of the binding machine according to claim 2, wherein the raised portions are arranged between the pair of sub-blades.

  The invention according to claim 4 is characterized in that the raised portion is provided on a frame member, and the frame member is mounted on a binding member insertion window of the blade body. It is.

  According to a fifth aspect of the present invention, the raised portion extends from a distal end positioned between the blade edge of the blade body and a distal end edge of the binding member insertion window to a rear end positioned near the proximal end edge of the binding member insertion window. The cutting blade of a binding machine according to claim 1, wherein the cutting blade extends continuously.

  According to a sixth aspect of the present invention, the raised portion is made of a synthetic resin and is provided on a synthetic resin frame member, and the frame member uses the elastic deformation of the member to bind the binding member. The cutting blade of a binding machine according to claim 1, wherein the cutting blade is configured to be attached to the insertion window.

  The invention according to claim 7 is the cutting blade of the binding machine according to claim 2 or 3, wherein the raised portions are arranged between the left and right end edges of the binding member insertion window and the paired sub blades. is there.

  According to an eighth aspect of the present invention, the raised portion is attached to a portion in the vicinity of the binding member insertion window in the blade body, and at least in the vicinity of the upper and lower sides of the binding member insertion window. The cutting blade of a binding machine according to claim 1, 2, 3, 4, 5, 6 or 7, which is positioned so as not to be displaced.

  According to a ninth aspect of the present invention, there is provided a blade body provided with a blade edge at the tip thereof for forming a cut hole in the paper by reciprocating between the paper and penetrating the paper, and the blade body is separate from the blade body. An auxiliary blade provided with a cutting edge for forming a sub-cut hole continuous with the cut hole at the tip thereof, and the blade body penetrating in the thickness direction, and the blade body is disposed in the cut hole. A binding member insertion window for inserting the binding member into the cut hole in a state where the band-shaped binding member for binding the paper when being pulled out is engaged, and the blade main body separately from the blade main body Ridges for gap formation that form gaps by separating the cutting edges that form a pair opposed to the cut holes when the binding member insertion window passes through the cut holes. It is characterized by having A cutting blade of the binding machine for.

  The invention according to claim 10 is the cutting blade of the binding machine according to claim 9, wherein the raised portion is provided on a frame member attached to the binding member insertion window.

  As described above, according to the present invention, in the process of engaging the binding member with the paper, the cutting edge of the cut hole formed by the cutting blade is prevented from being caught by the cutting blade. Thus, it is possible to provide a cutting blade for a binding machine having a high degree of design freedom.

The perspective view which shows one Embodiment of this invention. The top view of the paper in the same embodiment. XX sectional drawing in FIG. The perspective view of the operation | movement tape in the same embodiment. The expanded sectional view near the space | interval induction part in the embodiment. The top view of the operation | movement tape in the same embodiment. The top view of the peeling tape mount in the same embodiment. The right view in the same embodiment. The center sectional view in the embodiment. The perspective view in the embodiment. The exploded perspective view in the embodiment. The exploded perspective view in the embodiment. The perspective view of the refill in the embodiment. The exploded perspective view in the embodiment. The exploded perspective view in the embodiment. Sectional drawing of the fixed dimension feeding part in the embodiment. Sectional drawing of the fixed dimension feeding part in the embodiment. The exploded perspective view in the embodiment. The exploded perspective view in the embodiment. The exploded perspective view in the embodiment. The exploded perspective view in the embodiment. The perspective view of the cutting blade in the embodiment. The side view of the cutting blade in the embodiment. The top view of the cutting blade in the embodiment. The YY sectional view taken on the line in FIG. The disassembled perspective view of the cutting blade in the same embodiment. FIG. 27 is a central sectional view corresponding to FIG. 26. Operation | movement explanatory drawing in the same embodiment. Operation | movement explanatory drawing in the same embodiment. Operation | movement explanatory drawing in the same embodiment. Operation | movement explanatory drawing in the same embodiment. Operation | movement explanatory drawing in the same embodiment. Operation | movement explanatory drawing in the same embodiment. Operation | movement explanatory drawing in the same embodiment. Operation | movement explanatory drawing in the same embodiment. Operation | movement explanatory drawing in the same embodiment. The disassembled perspective view of the cutting blade which shows other embodiment. The perspective view of the cutting blade which shows other embodiment.

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

  As shown in FIGS. 1 to 3, the binding machine of this embodiment forms a cut hole c by a cutting blade m1 that is a blade in the vicinity of the edge p1 in a plurality of stacked sheets P, and the cut hole c and A plurality of sheets P are bound by winding a band-shaped binding member t2 in a closed loop around a sheet portion p2 located between the edge p1 of the sheet P.

  That is, the binding machine is related to the stage A on which a plurality of stacked sheets P are arranged, the first and second casings D and J adjacent to the stage A, and the first casing D. And a binding member supply mechanism B for supplying the band-shaped binding member t2 constituting the operating tape T to the stage A and the second casing J, relative to the second casing J. A binding mechanism C that engages the paper P with the binding member t2 supplied to the stage A by using an operation force applied to the operable binding operation unit K is provided. A part of the second housing J is provided with a one-hand holding portion 7c for enabling the handy use, that is, maintaining the state away from the mounting surface such as the top plate with one hand Q. In addition, the binding operation unit K is disposed at a position where the binding operation unit K can be operated in a state where the hand is held on the one-hand holding unit 7c.

  The stage A includes an anvil a1 that faces the upper surface side of the paper P to be bound and a facing wall a2 that faces the lower surface side of the paper P to be bound and forms a paper insertion gap sk between the anvil a1. The first housing D is provided on the upper side of the stage A. The second housing J is provided below the stage A. The paper insertion gap sk provided on the stage A has an entrance for inserting the paper P on the front side. That is, the stage A in this embodiment is configured such that the paper P can be inserted from the front side. The front side means the front side of the binding machine when the paper insertion gap sk is horizontal.

<< Operation tape T >>
As shown in FIGS. 6 and 7, the operating tape T is formed by continuously arranging a plurality of binding members t2 having the same shape on one surface of a long release tape mount t1 in the longitudinal direction. .

  The release tape mount t1 is a continuous tape-like material made of a film material, and is provided with retaining holes t11 for receiving an operating force by the binding member supply mechanism B at a constant pitch in the longitudinal direction. The retaining holes t11 are located at the center in the width direction of the release tape mount t1, and are arranged at regular intervals in the longitudinal direction of the release tape mount t1. These retaining holes t11 are formed by making a partial arc-shaped cut t112 having a notched portion t111 in the release tape mount t1. In other words, the latching hole t11 is formed by a substantially C-shaped cut t112, and the notched portion t111 is positioned on the delay side in the traveling direction of the peeling tape mount t1.

  The binding member t2 is a belt-like member having substantially the same width as that of the release tape mount t1, and has a longitudinal dimension substantially the same as the length between the adjacent latching holes t11. That is, an integral multiple of the pitch between the hooking holes t11 matches the total dimension of the plurality of binding members t2 arranged side by side. The binding member t2 is provided with an adhesive layer (not shown) coated with an adhesive on one surface of a base material t23 manufactured mainly from paper or the like. The binding member t2 is detachably attached to one surface of the release tape mount t1 through an adhesive layer.

  Each binding member t2 is arranged on one surface of the release tape mount t1 so that the longitudinal center portion of the binding member t2 and the hooking hole t11 of the release tape mount t1 coincide. These binding members t2 are attached to one surface of a continuous release tape mount t1 in a state of being adjacent to each other through a separation slit t3. That is, the binding member t2 is conveyed along with the movement along the longitudinal direction of the peeling tape mount t1.

  The operation tape T is wound around the supply reel 4 constituting the binding member supply mechanism B. The operating tape T is first fed out from the feeding reel 4 and passes through the first half guiding portion u2 and is guided to the separation inducing portion u1. Subsequently, the binding member t2 is peeled from the peeling tape mount t1 and supplied to the stage A by passing through the separation inducing portion u1. The release tape mount t1 that has passed through the separation inducing portion u1 passes through the latter half induction portion u3, and is taken up and collected by the take-up reel 5 serving as a storage means.

  In this embodiment, the operating tape T constitutes the refill E, and as the refill E is replaced, the release tape mount t1 accumulated on the take-up reel 5 of the refill E can be replaced. ing.

<< Binding member supply mechanism B >>
The binding member supply mechanism B is for supplying the binding members t2 to the stage A one by one. In this embodiment, the binding member supply mechanism B partially peels the binding members t2 sequentially from the release tape mount t1 one by one from the operation tape T in which the rectangular binding member t2 is attached to the release tape mount t1. Thus, the binding member t2 is sent out from the upper side of the stage A and supplied to the stage A.

  The binding member t2 is supplied to the stage A and is in a so-called standby state in which the binding member t2 is not engaged with the paper P to be bound, the start end t21 side is peeled off from the release tape mount t1, and the end portion t22 is attached to the release tape mount t2. It is in a state. As shown in FIGS. 4, 5, 28, 29, and 31, the binding member t2 in the standby state has a posture extending downward in a side view, and the adhesive layer side thereof. Is directed to the entrance side of the paper insertion gap sk.

  The binding member supply mechanism B is positioned on the upper side of the stage A, and the binding members t2 are sequentially moved to the stage A by an operation force applied to the feed operation unit F that is rotatably supported with respect to the first housing D. It can be arranged.

  The delivery operation part F is pivotally attached to the rear part of the first casing D on the upper side of the stage A. The delivery operation unit F is disposed at a position where it can be directly operated with the thumb Q3 in a state where a finger (index finger, middle finger, ring finger, little finger) Q2 is put on the one-hand holding unit 7c.

  More specifically, the binding member supply mechanism B includes a first housing D disposed on the stage A. Then, in association with the first casing D, the supply reel 4 on which the operation tape T is wound, the take-up reel 5 for collecting the release tape mount t1, and the operation tape extended from the supply reel 4 A tape conveyance path U for guiding T to the separation inducing section u1 and guiding the used release tape mount t1 that has passed through the separation induction section u1 to the take-up reel 5, and the operation tape T along the tape conveyance path U. A feed operation unit F for moving, a fixed-size feed unit H for pulling the release tape mount t1 by a certain distance by the operation force of the feed operation unit F and pulling out the operating tape T from the feed reel 4, and a fixed-size feed unit Double rotation operation, which is an erroneous operation by the rotation transmission portion I for transmitting the rotation of the feeding reel 4 forcedly driven by H to the take-up reel 5 and the feeding operation portion F, is prevented. And a locking portion G for.

  In this embodiment, the refill frame R is provided with a refill E in which the entire tape transport path U is formed. The refill E is unitized by holding the supply reel 4 and the take-up reel 5 rotatably on the refill frame R.

<First housing D>
The first housing D has a bottom plate 11 attached to the upper surface side of the anvil a1, and a housing body 1 in which a standing wall 12 is erected from an edge on the left side when viewed from the front, which is one side edge of the bottom plate 11. The housing is provided so as to form an internal space in which the refill E or the like is disposed in cooperation with the housing body 1 so that the internal space can be opened toward one side, that is, the right side when viewed from the front. A side cover 2 supported to be rotatable with respect to the body main body 1 and an upper surface cover 3 supported to be rotatable with respect to the housing main body 1 so as to close the upper portion of the internal space. Become.

  The housing body 1 is, for example, an integrally molded product made of synthetic resin, and integrally includes a bottom plate 11 and a standing wall 12.

  The bottom plate 11 has a window 11a that communicates in the vertical direction at the front thereof, corresponding to the opening a11 that communicates in the vertical direction in the anvil a1. The bottom plate 11 is provided with a bolt insertion hole 11b through which a bolt v1 for fixing to the second casing J through the stage A is inserted. The bottom plate 11 is mounted on the anvil a1 by a bolt v1 inserted into the bolt insertion hole 11b in a state where the front edge of the window 11a is engaged with an engagement protrusion a12 provided at the front end of the anvil a1. . A shielding wall 11c is erected in the vicinity of the rear edge of the window 11a. The bolt v1 is inserted into a bolt insertion hole a13 provided in the rear portion of the anvil a1, and is screwed into a nut m64 disposed inside the second casing J.

  The upright wall 12 has a shape that covers one side of the internal space, that is, the left side when viewed from the front, and engages with the rear portion of the top cover 3 at a rear position in the upper portion thereof to rotatably support the top cover 3. A first pivotal support 121 that forms an annular shape, a second pivotal support 122 that is disposed inside the first pivotal support 121 and rotatably supports the delivery operation unit F, and a second The third pivotally supporting portion 123 is disposed inside the pivotally supporting portion 122 and has a boss shape for rotatably supporting the take-up gear i3 of the rotational transmission portion I. A bolt insertion hole 12b for inserting the bolt v2 is formed in the third pivotally supporting portion 123 so that the axis j1 coincides. The upright wall 12 includes a fourth pivot 124 that is disposed in the middle in the front-rear direction and in the up-down direction, and rotatably supports the feeding gear i1 of the rotation transmission unit I.

  The first, second, and third pivot portions 121, 122, and 123 are arranged with the axis j1 aligned. That is, the top cover 3, the feeding operation unit F, the take-up gear i3, and the take-up reel 5 supported by the take-up gear i3 can be rotated around the common axis j1. It is supported by the standing wall 12. A bolt v <b> 2 that exhibits a retaining prevention function can be screwed into a position that coincides with the axis j <b> 1 of the first, second, and third pivot portions 121, 122, and 123 on the outer surface side of the standing wall 12. A nut n1 is embedded.

  The second pivotal support portion 122 is configured by arranging a plurality of elastic claws 12c in a cylindrical shape. The fourth pivot 124 is configured by arranging a plurality of elastic claws 12d in a cylindrical shape.

  A front upper edge portion of the standing wall 12 is engaged with a guide slit (not shown) provided in the side wall portion 31a of the first cover portion 31 of the upper surface cover 3, and the vertical rotation range of the upper surface cover 3 is restricted. A protruding portion 129 for projecting is provided. A pair of projections 125 constituting a pivotal support portion for rotatably supporting the side cover 2 are disposed opposite to each other in the vertical middle portion of the front edge of the standing wall 12. The rear edge of the standing wall 12 is provided with a claw locking hole 126 as an engaging portion for holding the side cover 2 in a closed state.

  The side cover 2 is, for example, an integrally molded product made of synthetic resin, and extends rearward from a front wall 21 that covers the front side of the internal space and a side edge on the right side of the front wall 21 that is one side edge of the front wall 21 and is closed. In this state, the side wall 22 is disposed substantially in parallel with the upright wall 12, and the base end edge portion, which is the other side edge of the front wall 21, is engaged with the pivoting projection 125. That is, the base end edge portion of the front wall 21 is provided with a pair of extending members 211 having an engagement hole 21a that is a pivotal support portion that engages with the projection 125 that is pivotally worn. And the engagement hole 21a and the protrusion 125 for pivoting are engaged with each other by utilizing the temporary elastic deformation of the extending member 211. At the rear edge of the side wall 22 in the side cover 2, an engaging claw 223 is provided as an engaging portion for elastically engaging with the claw locking hole 126 and holding the side cover 2 in a closed state.

  The upper surface cover 3 includes first and second cover portions 31 and 32 that can be divided into left and right, and a fixed-size feed portion H between the first cover portion 31 and the second cover portion 32. And the base end part f1 of the sending-out operation part F is accommodated.

  The first cover portion 31 is, for example, an integrally molded product made of synthetic resin, and protrudes inward from the outer peripheral edge of the side wall portion 31a and the side wall portion 31a disposed substantially parallel to the upright wall 12, and is formed in the inner space. And a top wall portion 31b covering the upper surface. The side wall portion 31 a includes a fitting hole 311 that is a pivotally attached portion that pivotally attaches to the first pivotal support portion 121 in the housing body 1 on the rear side. By using the fitting hole 311, the upper surface cover 3 is pivotally supported by the first pivotal support part 121 of the housing body 1 and can be opened upward. On the inner surface of the side wall portion 31a, a fixed shaft 312 that constitutes the fixed-size feed portion H is projected. The front edge of the top wall portion 31b is provided with a locking claw 313 which is a side cover engaging portion extending downward to hold the top cover 3 in the closed position.

  The second cover portion 32 is, for example, an integrally molded product made of a synthetic resin, and includes a side wall portion 32a disposed substantially parallel to the side wall portion 31a of the first cover portion 31, and an outer peripheral edge of the side wall portion 32a. And a ceiling wall portion 32b that protrudes inward and covers the upper surface of the internal space. The top wall portion 32b is provided with a locking claw 322 that is a side cover engaging portion that extends downward to hold the upper surface cover 3 in the closed position at the front edge thereof.

  The second cover portion 32 is attached to the first cover portion 31 such that the inner edge portion of the top wall portion 32 b abuts the inner edge portion of the top wall portion 31 b in the first cover portion 31. That is, the butting of the top wall portions 31b and 32b of the first and second cover portions 31 and 32 has a stamping structure, and the engaging portion provided on the top wall portion 31b of the first cover portion 31. By engaging the elastic claw 314 in the engagement hole 323 which is an engagement portion provided in the top wall portion 32 b of the second cover portion 32, the second cover portion 32 is made to be the first cover portion 31. Is attached.

  When the first and second cover portions 31 and 32 are attached to each other, the tip of the fixed shaft 312 protruding from the first cover portion 31 is the side wall portion 32a of the second cover portion 32. It fits into a concave fitting portion (not shown) provided on the inner surface.

  An open portion communicating with the internal space is formed on the back side of the first casing D described above. In other words, an opening portion in which an opening edge is mainly formed at the rear edge of the first casing D mainly on the rear edge of the bottom plate 11, the rear edge of the standing wall 12, and the rear edge of the side wall 22 in the side cover 2. The operation end portion f2 of the feed operation portion F is extended to the outside.

<Refill E>
The refill E is accommodated in the first housing D in a replaceable manner. The refill E forms all of the tape transport path U in the refill frame R, and holds the supply reel 4 and the take-up reel 5 rotatably on the refill frame R.

  The refill frame R is an integrally molded product made of, for example, a synthetic resin. The refill frame main body S has a plate shape, the tape transport path U provided on the inner surface side of the refill frame main body S, and the inner surface side of the refill frame main body S. First and second reel support portions s11 and s21 are provided, which are provided and support the supply reel 4 and the take-up reel 5 in a rotatable manner.

  The refill frame main body S corresponds to the take-up reel 5 at a position adjacent to the large circular portion s1 having a plate-like circular portion formed corresponding to the feeding reel 4 and the large circular portion s1. A small circular portion s2 having a plate-like circular portion formed in the above manner, and an extending portion s3 having an elongated plate-like portion extending downward from the front portion of the large arc portion in the direction of the stage A. It is provided.

  A first reel support portion s11 is provided on the inner surface side of the large circular portion s1, and a positioning protrusion formed on the side wall 22 of the side cover 2 on the outer surface side of the large circular portion s1. A fitting hole s12 into which 221 is fitted is provided. A second reel support portion s21 is provided on the inner surface side of the small circular portion s2, and a positioning protrusion formed on the side wall 22 of the side cover 2 on the outer surface side of the small circular portion s2. A fitting hole s22 into which 222 is fitted is provided.

  The tape conveyance path U separates the separation inducing portion u1 for partially separating the binding member t2 from the release tape mount t1 of the operation tape T and supplying the binding member t2 to the stage A, and the operation tape T fed from the feed reel 4. A first half guiding portion u2 that guides the triggering portion u1 and a second half guiding portion u3 that guides the peeling tape mount t1 that has passed through the separation triggering portion u1 to the take-up reel 5 are provided.

  The separation inducing portion u1 is obtained by projecting a columnar head s31 on the extended portion s3 of the refill frame R. The diameter of the head s31 is set to such a value that the binding member t2 attached to the release tape mount t1 can be partially peeled from the release tape mount t1 by performing a U-turn operation on the outer periphery of the release tape mount t1. Yes. At the extended end of the head s31 projecting from the extended portion s3, a flange s35 for preventing the release tape mount t1 from coming off is provided.

  The first half guide portion u2 is a rear side of the first guide plate s32 formed between the separation inducing portion u1 and the supply reel 4, and the first guide shaft s33 disposed downstream of the first guide plate s32. And a half part. The first guide plate s32 and the first guide shaft s33 are provided in the extension portion s3.

  The second half guide portion u3 is provided on the front half portion of the first guide shaft s33, the second guide shaft s34 provided downstream of the first guide shaft s33, and downstream of the second guide shaft s34. A second guide plate s13 having a double parallel wall shape and guided on both sides of the release tape mount t1 and a third guide plate provided between the second guide plate s13 and the take-up reel 5. A guide plate s14 is provided. The second guide shaft s34 is provided in the extended portion s3. The second and third guide plates s13 and s14 are provided in the great circular portion s1.

  The first guide shaft s33 extends from the extending portion s3 in the direction of the standing wall 12 of the housing body 1, and its tip is removably fitted in a positioning recess 127 provided on the standing wall 12. It has come to be able to do.

  The third guide plate s14 is for feeding the peeling tape mount t1 at a constant pitch by cooperating with the fixed-size feed unit H, and the outer periphery of the cylindrical portion h11 in the drive wheel h1 constituting the fixed-size feed unit H. It has a partial arc shape in a side view that protrudes downward corresponding to the surface. The lower surface of the release tape mount t1 can be in sliding contact with the curved upper surface of the third guide plate s14. A slit s15 extending in the front-rear direction is formed at the center in the left-right direction of the third guide plate s14 so as to avoid interference with a protrusion h12 that is a peeling tape mount engaging portion provided on the drive wheel h1. .

  The release tape mount t1 is sandwiched between the outer peripheral surface of the cylindrical portion h11 of the drive wheel h1 and the third guide plate s14 in a state where the upper surface cover 3 is closed. Then, the convex portion h12 of the driving wheel h1 engages with the latching hole t11 of the release tape mount t1 and enters the slit s15 of the third guide plate s14. In this state, the driving wheel h1 operates the operation force of the feeding operation portion F. And rotate. For this reason, the peeling tape mount t1 can be reliably conveyed in a predetermined direction by the drive wheel h1 cooperating with the third guide plate s14. In the vicinity of the downstream end portion of the third guide plate s14, that is, the upper end edge of the small circular portion s2, a gutter plate s23 for preventing separation of the peeling tape mount t1 is extended.

  The supply reel 4 is provided on the cylindrical body 41 around which the operation tape T formed by attaching the binding member t2 to the release tape mount t1 is wound, and the edge of the body 41 on the refill frame main body S side. One flange portion 42 and the other flange portion 43 provided at the end edge of the body portion 41 on the anti-refill frame main body side are provided. A shaft hole portion 42a is formed at the center of the flange portion 42 and is rotatably supported by the first reel support portion s11 of the refill frame main body S. The other flange 43 includes an opening 43a for opening the inner space of the cylindrical body 41. A plurality of transmission protrusions 41a are intermittently provided in the rotation direction on the inner peripheral surface of the body portion 41 to engage with the feeding gear i1 constituting the rotation transmission portion I and transmit the rotational force to the feeding gear i1. It has been.

  The take-up reel 5 constitutes storage means for storing the release tape mount t1 from which the binding member t2 has been removed. In other words, the take-up reel 5 can take up and collect the release tape mount t1 from which the binding member t2 has been removed without discharging it to the outside. Then, after a predetermined number of binding operations have been completed and the binding member t2 has been exhausted, the release tape mount t1 can be discarded together with the take-up reel 5 serving as a storage means.

  The take-up reel 5 includes a cylindrical body 51 for winding the release tape mount t1, one flange 52 provided at an end edge of the body 51 on the refill frame main body S side, and an anti-refill in the body 51. And the other flange 53 provided at the edge on the frame body side. A shaft hole (not shown) is formed at the center of the flange 52 and is rotatably supported by the second reel support s21 of the refill frame main body S. The other flange 53 is provided with an opening 53a for opening the inner space of the cylindrical body 51. On the inner peripheral surface of the body 51, there are a plurality of transmission protrusions 51a in the rotational direction for receiving the rotational force transmitted from the take-up gear i3 by engaging with the take-up gear i3 constituting the rotary transmission portion I. It is provided intermittently.

  The take-up reel 5 takes up only the release tape mount t1 after the binding member t2 is removed. For this reason, the diameter of the binding member t2 is set to be smaller than that of the feeding reel 4 around which the operating tape T in a state of being attached to the release tape mount t1 is wound.

<Sending operation part F>
The feeding operation unit F is for performing an operation of feeding the used release tape mount t1 by a predetermined distance, and is provided on the first housing D side. In other words, the delivery operation unit F is in a state where one hand Q is applied to the one-hand holding unit 7c provided in the second housing J and the binding operation unit K provided in the second housing J. It is provided at a position where the thumb Q3 of the one hand Q can be rotated.

  The sending operation unit F is configured to be rotatable from an initial position (S) to a final operation position (T), and is illustrated between the sending operation unit F and the casing body 1. The spring is not elastically biased so that it can return itself to the initial position (S). When the operation is stopped at the stage of operation to the final operation position (T) (see FIG. 28), the feed operation unit F is slightly locked at the lock position (U) self-returned in the direction of the initial position (S). It is configured to be locked by. The feed operation unit F can self-return from the lock position (U) to the initial position (S) when the lock unit G is unlocked in relation to the movement of the binding operation unit K constituting the binding mechanism C. It is like that.

  The feed operation unit F includes a base end portion f1 located on the front side and an operation end portion f2 located on the rear side. The feed operation portion F is configured such that an engagement hole f13 which is an engagement portion provided in the base end portion f1 is rotatably engaged with the second pivot support portion 122 in the housing body 1, and the operation end portion f2 can be rotated in the front-rear direction.

  The base end portion f1 includes a first side wall f11 in which an engagement hole f13 having a substantially circular shape is formed, and an upper peripheral edge and a rear side of the take-up reel 5 of the refill E from the outer peripheral edge that forms a partial arc shape in the first side wall f11 A surrounding wall f12 projecting so as to surround the side. A take-up reel 5, a take-up gear i3, and the like are arranged on the inner side of the surrounding wall f12 in the base end portion f1. On the first side wall f11 of the base end portion f1, a guide slit f14 having a partial arc shape in which the engagement hole f13 and the shaft center j1 are aligned is formed outside the engagement hole f13. The guide slit f <b> 14 is engaged with a protrusion 128 for restricting the rotation range that protrudes from the upright wall 12 of the housing body 1 in the first housing D. In other words, the guide slit f14 and the protrusion 128 cooperate to set the feed operation portion F so that it can rotate from the initial position (S) to the final operation position (T).

  The operation end portion f2 extends rearward continuously from the first operation end side wall f21 extending outward substantially continuously to the first side wall f11 and the rear end of the surrounding wall f12, and has one side edge at the first end. A rear wall f22 continuous with one operation end side wall f21, a second operation end side wall f23 extending downward from the other side edge of the rear wall f22, first and second operation end side walls f21, f23, and a rear wall and an end wall f24 provided so as to block between the rear end edges of f22. The operation end portion f2 is mainly a portion that is directly touched by the operator's thumb Q3, and the feed operation portion F can be rotated by pressing the operation end portion f2 with the thumb Q3. .

  The sending operation unit F described above is set so that it is difficult to perform a double hit operation which is an erroneous operation by the function of the lock unit G. Here, the “double hitting operation” refers to an erroneous operation of the operator with respect to the feeding operation unit F which causes the operation of repeatedly feeding the binding member t2 to the stage A before inserting the paper P into the paper insertion gap sk. Say.

<Lock part G>
The lock part G is provided in the synthetic resin lock member g1 provided on the bottom plate 11 of the casing body 1 in the first casing D and the delivery operation part F, and the delivery operation part F is in the final operation position ( T) is provided with an engagement hole f25 that is a lock member engagement portion that engages with the lock member g1 when the rotation operation is performed.

  The lock member g1 includes a rear end portion g11 having a claw g13 which is an engaging portion engageable with the engagement hole f25 of the sending operation portion F at the rear end, and is positioned on the front side of the rear end portion g11. The locking member g1 is supported by the bottom plate 11 by engaging the extended portion g12, which is the portion thus formed, with the bottom plate 11 of the first housing D. The lock member g1 has a pair of left and right, and a base end portion integrally connected to the rear end portion g11, and includes an extended portion g12 supported in a cantilever manner on the rear end portion g11. The lock member g1 is mainly composed of a pair of extending portions g12 and constitutes an elastic biasing means for elastically engaging with the bottom plate 11. The lock member g1 is normally held in the standby posture shown in FIG. 9 and FIG. 10 by the action of the elastic biasing means. The lock member g1 is temporarily elastically deformed so that the rear end portion g11 having the claw g13 is shifted upward at the stage where the terminal wall f24 of the feed operation unit F comes into contact, and the claw g13 is In the state returned to the position, it engages with the engagement hole f25 of the feed operation portion F.

  A receiving portion g14 extending downward is provided in a pair at the left and right at the intermediate portion in the front-rear direction of the lock member g1. These receiving portions g14 are formed at the base end portion of the extending portion g12, and are inserted into the through holes 11d provided in the bottom plate 11. Then, when the binding operation section K described later is operated from the initial position (Q) to the operation position (R), the receiving section g14 can be pushed upward by the pushing section k32 provided in the binding operation section K. ing.

  The engagement hole f25 constituting the lock part G is provided in the end wall f24 of the feed operation part F.

  With the configuration of the lock portion G provided with the lock member g1 and the engagement hole f25, the feed operation portion F is operated from the initial position (S) to the final operation position (T) in response to an operation force by the user. Then, the delivery operation unit F is locked at the lock position (U). Thereafter, when the binding operation unit K is rotated from the initial position (Q) to the operation position (R) in order to perform the binding operation, it is locked by the push-out unit k32 provided at the upper edge of the binding operation unit K. When the receiving portion g14 of the member g1 is pressed, the claw g13 of the lock member g1 moves upward so that the claw g13 is disengaged from the engagement hole f25 of the sending operation portion F. As a result, the feed operation unit F is self-returned to the initial position (S) as shown in FIG. According to the configuration of the lock portion G in this embodiment, the double hitting operation of the feed operation portion F can be suitably suppressed.

<Sized feed section H>
The fixed-size feed unit H urges the peeling tape mount t1 located in the tape transport path U of the refill E and moves it by a predetermined distance in the longitudinal direction. In other words, the feed operation unit F receives the operation force. Each time the drive wheel h1 is rotated, the drive wheel h1 is rotated by a fixed rotation angle, and the peeling tape mount t1 is moved in the direction of the take-up reel 5 by a fixed pitch by the rotational force of the drive wheel h1. .

  More specifically, the fixed-size feed unit H transmits the fixed shaft 312 of the top cover 3, the drive wheel h1 supported by the fixed shaft 312 and the operation force applied to the feed operation unit F to the drive wheel h1. Transmission means h2, a one-way transmission means h3 for transmitting the forward movement from the initial position (S) to the final operation position (T) of the delivery operation section F to the drive wheel h1, and the delivery operation section F at the final operation position. Drive wheel holding means h4 for holding the drive wheel h1 at a fixed position at the stage of fine movement return to the lock position (U) after being operated to (T).

  The drive wheel h1 has a plurality of protrusions h12 protruding from the outer peripheral surface at a constant pitch. The drive wheel h1 has three protrusions h12 arranged at equal intervals in the circumferential direction on the outer peripheral surface of a cylindrical portion h11 having a cylindrical shape. The drive wheel h1 includes a disk part h13 having a hub h18 at the center in the left-right direction inside the cylindrical part h11, and a first space on the left side in front view on one side with the disk part h13 as a boundary. sp1 is formed, and a second space sp2 is formed on the right side in the front view as the other side.

  The drive wheel h <b> 1 is rotatably supported by a fixed shaft 312 provided on the upper surface cover 3. That is, the hub h18 provided on the drive wheel h1 is rotatably fitted on the fixed shaft 312. The three protrusions h12 arranged on the outer peripheral surface of the cylindrical portion h11 can be engaged with a retaining hole t11 provided in the peeling tape mount t1, and in this embodiment, the driving wheel h1 is 120. The three protrusions h12 are arranged at equal intervals in the circumferential direction so that the three protrusions h12 exist at the same position as the position of the front protrusion h12 before the rotation when rotated.

  The transmission means h2 includes a small-diameter gear h21 that is rotatably supported at the base end portion of the fixed shaft 312 and a large-diameter gear f15 that is provided at the base end portion f1 of the feed operation portion F and meshes with the small-diameter gear h21. It is a thing. The large-diameter gear f15 has a plurality of teeth formed in a partial arc shape centered on the axis j1, and the feed operation unit F rotates from the initial position (S) to the final operation position (T). The gear ratio is set such that the small-diameter gear h21 can be rotated by a certain angle, for example, 123 ° by being operated.

  The one-way transmission means h3 is disposed in a first space sp1 formed on the side of the small-diameter gear h21 in the drive wheel h1, and is externally fitted to the keyed boss portion h23 of the small-diameter gear h21 and integrated with the small-diameter gear h21. And a one-way step h14 formed on the inner periphery of the cylindrical portion h11 of the drive wheel h1 so as to correspond to the clutch pawl h31. That is, the one-way transmission means h3 is configured such that the tip of the clutch pawl h31 having a leaf spring shape is one-way step in the process in which the feed operation unit F is operated from the initial position (S) to the final operation position (T). The drive wheel h1 is rotated in synchronization with the normal rotation of the small-diameter gear h21 by engaging with the portion h14. On the other hand, the one-way transmission means h3 is configured such that the leaf spring-like clutch pawl h31 is elastically deformed and the one-way step portion h14 has a one-way step portion h14 in the process of the return operation portion F returning to the initial position (Q). The inner periphery slides and the reverse rotation of the small diameter gear h21 is not transmitted to the drive wheel h1.

  The drive wheel holding means h4 is disposed in the second space sp2 located on the counter-small gear side of the drive wheel h1, and includes a positioning claw h41 fixed to the tip portion of the fixed shaft 312 and a positioning claw h41. Correspondingly, a concave fitting portion h15 formed on the inner periphery of the cylindrical portion h11 in the drive wheel h1 is provided. The positioning claw h41 has a rib portion h43 at the tip, and is a leaf spring-like configuration that can elastically press the rib portion h43 toward the inner peripheral surface of the cylindrical portion h11 in the drive wheel h1. . The first surface h44 of the protrusion h43 in the positioning claw h41 faces the direction in which it can engage with the standing surface h16 of the recessed fitting portion h14 in the drive wheel h1 to prevent the reverse rotation of the drive wheel h1. Yes. The second surface h45 of the protruding portion h43 in the positioning claw h41 can come into sliding contact with the inclined surface h17 of the recessed fitting portion h15 in the drive wheel h1. In this way, the positioning claw h41 is configured to allow the forward rotation of the drive wheel h1.

  According to the configuration of the drive wheel holding means h4, when the feed operation unit F is operated from the initial position (S) toward the final operation position (T), the drive wheel h1 is moved in the forward direction by the one-way transmission means h3. In addition to being forcibly driven, the driving wheel holding means h4 is elastically shifted inward by the protrusion h43 being pressed against the inclined surface h17 provided in the recessed fitting portion h15 of the driving wheel h1. Therefore, in this case, the drive wheel h1 is rotated in the positive direction.

  When the feed operation unit F approaches the final operation position (T), the next recessed fitting portion h15 in the drive wheel h1 approaches the ridge portion h43, and immediately after the drive wheel h1 rotates 120 °, The first surface h44 of the strip portion 43 engages with the standing surface h16 of the recessed fitting portion h15. When the delivery operation unit F is operated to the final operation position (T), the driving wheel h1 rotates beyond 120 ° to, for example, about 123 °. The second surface h45 is slightly absorbed on the inclined surface h17 of the recessed fitting portion h15. When the operation of the feed operation unit F is finished, the feed operation unit F is finely restored from the final operation position (T) to the lock position (U), and the protrusion h43 of the positioning claw h41 is densely recessed in the drive wheel h1. Engage with h15.

  In this state, when the lock state by the lock part G is released and the sending operation part F self-returns from the lock position (U) to the initial position (S), the small-diameter gear h21 is reversely linked with the sending operation part F. The reverse rotation force is not transmitted as a large force to the drive wheel h1 by the one-way transmission means h3. That is, when the clutch pawl h31 and the drive wheel h1 are in sliding contact, the drive wheel h1 attempts to reversely rotate due to frictional force, but the reverse rotation is blocked by the drive wheel holding means h4.

  In the fixed dimension feed portion H described above, the components including the driving wheel h1 are supported on the fixed shaft 312 of the upper surface cover 3 in the first housing D except for the large-diameter gear f15. When the refill E is mounted / removed, not only the side cover 2 is opened, but the front side of the top cover 3 is rotated upward, as shown in FIG. 11 and FIG. It will be in the open state.

  Then, after the refill E is loaded into the housing body 1, the upper surface cover 3 is moved from the open position (O) to the closed position (P), and the drive wheel h1 and the release tape mount t1 are engaged with each other. That is, by moving the upper surface cover 3 to the closed position (P), the driving wheel h1 comes close to the upper surface of the third guide plate s14 in the refill E and is placed on the upper surface side of the third guide plate s14. When the protrusion h12 enters the retaining hole t11 of the release tape mount t1, the drive wheel h1 is engaged with the release tape mount t1.

  As described above, the release tape mount t1 can be driven by the rotation of the drive wheel h1. The driving force for rotating the supply reel 4 and the take-up reel 5 is transmitted via the peeling tape mount t1 driven by the driving wheel h1.

<Rotation transmission part I>
The rotation transmission portion I is for transmitting the rotational force that the feeding reel 4 rotates to the take-up reel 5. The rotation transmission part I is engaged with the feeding gear i1 rotatably supported by the fourth pivot 124 in the first casing D, and the third pivot 123 in the first casing D while meshing with the feeding gear i1. And a take-up gear i3 that is rotatably supported.

  The feeding gear i1 has a boss portion i11 on the end surface on the feeding reel 4 side. On the tip end side of the boss part i11, there is provided a pivotal part i12 configured by intermittently arranging a plurality of elastic claws i16 in the circumferential direction. An annular clutch member i2 is mounted on the pivotal support part i12 of the boss part i11.

  The clutch member i2 is rotatably supported by the pivot portion i12 using the temporary inward elastic deformation of the elastic claw i16. The clutch member i2 is set to have a smaller diameter than the boss part i11, and a plurality of transmission protrusions i13 are intermittently arranged in the circumferential direction on the outer periphery thereof. The outer peripheral surface of the transmission projection i13 is substantially flush with the outer peripheral surface of the boss portion i11. The feeding reel 4 is detachably attached to the outer peripheral surface of the transmission projection i13 and the outer peripheral surface of the boss portion i11. It can be fitted.

  In the state where the supply reel 4 is externally fitted to the supply gear i1 to which the clutch member i2 is attached, the transmission protrusion i13 of the clutch member i2 is positioned between the transmission protrusions 41a of the supply reel 4. ing.

  The feeding gear i1 and the clutch member i2 are engaged in such a manner that they can slide relative to each other. That is, the friction is set between the feed gear i1 and the clutch member i2 so that friction can be generated so that the feed gear i1 and the clutch member i2 can rotate integrally. On the other hand, when a rotational torque of a certain level or more is applied between the feeding gear i1 and the clutch member i2, the feeding gear i1 and the clutch member i2 can rotate relative to each other more than the relative rotation due to normal friction. Thus, an unreasonable force is hardly applied to the operating tape T.

  The take-up gear i3 includes a boss part i14 projecting from an end face on the take-up reel 5 side and a small-diameter boss part i15 projecting from an outer end face of the boss part i14. A plurality of transmission protrusions i17 are intermittently arranged in the circumferential direction on the outer periphery of the small-diameter boss part i15. The outer peripheral surface of the transmission projection i17 is substantially continuous with the outer peripheral surface of the boss portion i14, so that the take-up reel 5 can be detachably fitted to the outer peripheral surface of the transmission projection i17 and the outer peripheral surface of the boss portion i14. It has become. In a state where the take-up reel 5 is externally fitted to the take-up gear i3, the transmission protrusion i17 of the take-up gear i3 is positioned between the transmission protrusions 51a of the take-up reel 5.

<< Binding mechanism C >>
The binding mechanism C performs the binding operation by engaging the binding member t2 supplied from the binding member supply mechanism B with the paper P in the stage A.

  The binding mechanism C is accommodated in the second casing J disposed below the stage A, the binding operation unit K pivotally supported by the second casing J, and the second casing J. The blade unit M, the operation conversion unit N for transmitting the operation force of the binding operation unit K to the blade unit M, and the binding operation unit K are elastically biased in the direction of the initial position (Q) to A return spring L for returning the cutting blade m1 from the penetrating position (N) to the standby position (M), and from the upper surface side to the lower surface side of the paper P when the cutting blade m1 returns to the standby position (M). A binding member pressing portion O that completes the binding operation by pressing the end portion t22 of the pulled binding member t2 against the lower surface of the paper P when the paper P is pulled out of the stage A is provided.

<Second housing J>
The second housing J includes a rigid frame 6 provided integrally with the anvil a1, a main cover 7 that covers the front side of the rigid frame 6, and both the left and right sides, and a rear sub-cover 8 that covers the rear side of the rigid frame 6. And a front sub-cover 9 that covers a part of the front side of the rigid frame 6 so as to be openable.

  The rigid frame 6 includes a pair of side plates 61 and a bottom plate 62 disposed between the lower edges of the side plates 61. The upper edge portion of the rear portion of the side plate 61 is connected to the anvil a1 via the connecting plate V. It is connected to the rear side edge.

  In this embodiment, the anvil a1, the connecting plate V, and the rigid frame 6 are sheet metal integrated molded products made by processing a common sheet metal material. For this reason, the position of the anvil a <b> 1 is configured to be difficult to be displaced with respect to the rigid frame 6.

  The side plate 61 of the rigid frame 6 has an inclined front edge portion 611 along the front inclined portion 7e of the one-hand holding portion 7c at the front edge thereof. The side plate 61 of the rigid frame 6 has a trailing edge portion 612 that is substantially parallel to the advancing and retreating direction of the cutting blade m1 of the blade unit M at the rear edge. The side plate 61 is provided with a guide slit 613 for guiding the drive shaft m7 of the blade unit M in the vertical direction in the middle in the front-rear direction. A concave portion 614 that engages with a positioning convex portion m52 in the front rail block m5 that holds the binding member pressing portion O is provided at the upper end portion of the front portion of the side plate 61. A binding operation portion pivoting portion 615 having a through hole 617 for rotatably supporting the binding operation portion K via the axis j2 is integrally provided at the upper end portion of the rear portion of the side plate 61. An engagement protrusion 616 that protrudes outward and has a tip facing upward is provided at the upper end of the intermediate portion in the front-rear direction of the side plate 61. Near the inclined front edge portion 611 of the side plate 61, a pin insertion hole 618 for attaching the front rail block m5 is provided.

  The bottom plate 62 is located below the blade unit accommodation space sp3, and is formed by folding a protruding piece inward from the lower edge of the side plate 61. That is, the bottom plate 62 is formed by attaching the free ends of the projecting pieces respectively protruding from the lower edges of the left and right side plates 61.

  The rigid frame 6 configured as described above has a blade unit accommodation space sp3 for accommodating the blade unit M therein.

  The main cover 7 includes a left main cover element 7a that covers one half of the rigid frame 6, that is, the left half of the front view, and a right main cover element 7b that covers the other half, that is, the right half of the front view. .

  The main cover 7 has a shape extending in the vertical direction. The main portion of the main cover 7 and the front sub-cover 9 mainly constitute a one-hand holding portion 7c for hanging the finger Q2 from the index finger to the little finger of the user. When operating the binding machine, when the paper insertion gap sk is substantially horizontal, the fingers are arranged in the order of the index finger, the middle finger, the ring finger, and the little finger from the upper side to the lower side along the one-hand holding portion 7c. Q2 is arranged. In other words, when the paper insertion gap sk is substantially horizontal, the binding machine operates all the fingers Q2 of the index finger, middle finger, ring finger, and little finger on the front side of the thumb ball Q1 and thumb Q3 of the one hand Q. Is supposed to be located.

  The left main cover element 7a includes a side plate 71 that covers a side surface portion of the rigid frame 6 on the left side when viewed from the front, a top plate 72 that is provided on the upper edge portion of the side plate 71 and that constitutes part of the facing wall a2 in the stage A, 71 includes a front plate 73 projecting inward from the lower portion of the front edge and a bottom plate 74 projecting inward from the lower edge of the side plate 71. The side plate 71 includes a positioning recess 711 having a bolt insertion hole 715 on the inner surface side. A nut (not shown) is embedded on the outer surface side of the side plate 71 corresponding to the positioning recess 711. In the vicinity of the upper edge of the side plate 71, an engaging wall 712 is disposed as an engaging portion that engages with an engaging protrusion 616 provided on the rigid frame 6. At the upper front end of the side plate 71 in the left main cover element 7a, an elastic claw 713 is provided as an engaging portion for joining to the right main cover element 7b extending inward.

  The right main cover element 7b includes a side plate 75 that covers the side portion of the rigid frame 6 on the right side when viewed from the front, a top plate 76 that is provided on the upper edge portion of the side plate 75 and that constitutes part of the facing wall a2 in the stage A, and the side plate 75 includes a front plate 77 projecting inward from the lower portion of the front edge and a bottom plate (not shown) projecting inward from the lower edge of the side plate 75. The side plate 75 includes a bolt insertion hole 751 having a base 755 for accommodating the head of the bolt v3 on the outer surface side. In the vicinity of the upper edge of the side plate 75, an engagement wall (not shown) serving as an engagement portion that engages with an engagement protrusion 616 provided on the rigid frame 6 is disposed. At the upper front end of the side plate 75 in the right main cover element 7b, an engagement hole 753 that is an engagement portion with which the elastic claw 713 of the left main cover element 7a is engaged is provided.

  The main cover 7 engages the engagement wall 712 of the left main cover element 7a and the engagement wall (not shown) of the right main cover element 7b with the engagement protrusion 616 of the rigid frame 6, and the left main cover element 7a. The elastic claw 713 can be engaged with the engagement hole 753 of the right main cover element 7b to engage with the outside of the rigid frame 6. The main cover 7 is engaged with the rigid frame 6 by screwing a bolt v3 inserted through the bolt insertion hole 715 of the right main cover element 7b to a nut (not shown) provided in the left main cover element 7a. It is fixed to the rigid frame 6.

  The front edge side of the main cover 7 constitutes a one-hand holding portion 7c that is directly touched by the finger Q2 for handy use. The one-hand holding portion 7c is configured mainly with the main cover 7 and the front sub-cover 9, and includes a front inclined portion 7e that is inclined so as to be gradually shifted rearward downward.

  The rear edge of the main cover 7 is inclined so as to gradually shift rearward downward in correspondence with the front edge of the binding operation portion K. In a state where the main cover 7 is externally mounted on the rigid frame 6, the rotation that constitutes the motion conversion unit N is formed between the outer side surface of the side plate 61 in the rigid frame 6 and the inner side surfaces of the left and right side plates 71 and 75 in the main cover 7. A gap sr for arranging the arm k2 is formed.

  The rear sub-cover 8 has a rearward slant that forms a pair extending inward by a gap sr for arranging the motion conversion portion N from the rear edge of the main cover 7, that is, a gap sr in which the rotation arm k2 can be disposed. A plate 81, a pair of side plates 82 extending rearward from the extended ends of the inclined rear plates 81 and covering the rear end portion outer surface of the rigid frame 6, and a rear surface of the rigid frame 6 provided between the rear edges of the side plates 82 And a rear standing plate 83 that covers the side. The rear standing plate 83 substantially corresponds to the outer shape of the rear edge portion of the rigid frame 6 and stands up so as to be substantially parallel to the advancing / retreating direction of the cutting blade m1. The side plate 82 is for connecting the rear standing plate 83 and the tilted rear plate 81 and has a substantially right triangle shape in side view. The rear sub-cover 8 is divided into one, ie, the left rear sub-cover element 84, and the other, ie, the right rear sub-cover element 85, corresponding to the main cover 7. That is, the left rear sub-cover element 84 is integrally formed with the left main cover element 7a, and the right rear sub-cover element 85 is integrally formed with the right main cover element 7b.

  The front sub-cover 9 is provided so that a window 7d formed on the front side of the main cover 7 can be opened and closed. That is, in a state where the main cover 7 and the rear sub-cover 8 are externally mounted on the rigid frame 6, the peripheral portion of the cutting blade m 1 disposed in the rigid frame 6 is externally exposed through the window 7 d provided on the main cover 7. It can be seen from. That is, the front sub-cover 9 is attached to the window 7d that can visually recognize the internal cutting blade m1 from the outside so as to be opened and closed. The front sub-cover 9 has a shape that can close the window 7d of the main cover 7, and is provided with a pair of elastic legs 91 that are elastically deformable in the contact and separation directions at the lower end portion. A shaft 91a, which is a pivotal support portion, is provided in a protruding manner. The front sub-cover 9 can be opened and closed with respect to the main cover 7 by elastically engaging the shaft 91 a with shaft holding holes 714 and 754 that are pivotal support portions provided in the main cover 7. The front sub-cover 9 is provided with a locking claw 92 that is an elastic engaging portion that engages with the window 7d at the upper end, and the user can easily open and close the front sub-cover 9 by operating this locking claw 92. It has come to be able to do.

  The front sub-cover 9 is configured to be substantially flush with the front portion of the main cover 7 with the window 7d of the main cover 7 closed, and the front sub-cover 9 also has a part of the one-hand holding portion 7c. It is a composition.

<Binding operation unit K>
The binding operation unit K is for operating the cutting blade m1 of the blade unit M, and is provided in the second housing J so as to be operable from the outside. That is, the binding operation unit K is rotatably supported by the second casing J, and a portion that is touched by the operator's hand is positioned outside the second casing J. The binding operation portion K is provided with a rear inclined portion k31 that is inclined so as to gradually shift backward in order to make the operator's thumb ball Q1 contact easily.

  The binding operation portion K is a rotary type pivotally attached to the rigid frame 6 via a shaft j2, and a one-hand holding portion 7c is mainly provided on the outer surface facing the rear side. A finger Q2 in one hand Q, that is, the index finger, the middle finger, the ring finger, and the little finger Q2 can come into contact with the one hand holding portion 7c provided in the second housing J. On the other hand, the thumb ball Q1 in one hand Q can come into contact with the rear inclined portion k31 of the binding operation portion K. The one-hand holding unit 7c and the binding operation unit K are disposed to face each other with a separation distance that can be collectively grasped by the one hand Q.

  The binding operation unit K includes a metal operation unit body k1 and a synthetic resin operation unit cover k3 that is externally attached to the operation unit body k1.

  The operation part main body k1 is a channel-shaped thing opened ahead, and the base end part is rotatably supported by the binding operation part pivot support part 615 of the rigid frame 6 via the axis | shaft j2. That is, a shaft engagement hole k12 that engages with the shaft j2 is provided at the proximal end portion of the operation portion main body k1. In the vicinity of the base end portion of the operation portion main body k1, a rotation arm k2 constituting an operation conversion portion N described later is integrally projected. The operation portion main body k1 has a form in which the binding operation portion K tilts forward and extends in the vertical direction when the binding operation portion K is at the initial position (Q).

  The operation unit cover k3 is mainly configured with a channel-shaped portion covering the back surface and both side surfaces of the operation unit body k1. The operating portion cover k3 is provided with a closing wall k33 at the rotating end thereof, and an engaging projection k34 that engages with the rotating end of the operating portion main body k1 is provided on the inner surface of the closing wall k33. . A screw insertion hole k35 is provided in the operation unit cover k3. The operation unit cover k3 is attached so as to cover the outside of the operation unit main body k1. The operation unit cover k3 is externally fitted to the operation unit main body k1, and the screw v4 inserted through the screw insertion hole k35 is screwed into a screw hole k11 provided in the operation unit main body k1 to thereby operate the operation unit main body k1. It is fixed to. The operation portion cover k3 is provided with a protruding pushing portion k32 in a pair on the left and right at the upper edge portion at the base end portion. These pushing portions k32 are set so that the receiving portion g14 of the lock portion G can be pressed upward from below in a state where the binding operation portion K is in the operation position (R). The operation unit cover k3 has a form in which the binding operation unit K tilts forward and extends in the vertical direction when the binding operation unit K is at the initial position (Q).

  The binding operation unit K described above can rotate between the initial position (Q) shown in FIG. 28 and the like and the operation position (R) shown in FIG. In the operation position (R), a part of the rear sub-cover 8 of the second casing J is positioned inside the binding operation section K. The binding operation section K and the second casing It does not interfere with the body J. That is, the width dimension between both outer surfaces of the binding operation unit K is set to be approximately the same as the width dimension between both outer surfaces of the main cover 7. Further, the internal width dimension of the operation section cover k3 is set to be larger than the width dimension between both outer side surfaces of the rear sub cover 8.

<Return spring L>
The binding operation portion K is elastically biased by the return spring L so that it can return to the initial position (Q). The return spring L is formed on the paper P on the end portion t22 side which is one end side of the binding member t2 located on the anvil a1 side by returning the cutting blade m1 from the penetrating position (N) to the standby position (M). This is for passing the cut hole c and pulling it into the surface on the anti-anvil side of the paper P. The return spring L is of a torsion coil type having a coil portion L1 surrounding a shaft j2 for supporting the binding operation portion K on the second housing J.

  The first extending portion L2 extended from one end of the coil portion L1 is locked to the spring receiving portion 63 provided at the rear portion of the rigid frame 6, and the first extending portion L2 extended from the other end of the coil portion L1. The second extending portion L3 is in contact with the inner surface of the operation portion main body k1.

<Blade unit M>
The blade unit M includes a cutting blade m1 that penetrates the paper P and performs a binding operation, a blade holder m2 that holds a proximal end portion of the cutting blade m1, a paper presser m4 that is attached to the cutting blade m1, A spring m3 that elastically biases the paper presser m4 upward with respect to the blade holder m2, a front rail block m5 that guides the front end side of the blade holder m2 to be movable up and down, a rear end side of the blade holder m2, and a paper presser A rear rail block m6 that guides m4 so as to be movable up and down is housed in the rigid frame 6.

  The cutting blade m1 is for forming a cut hole c in the paper P arranged on the stage A, and is arranged in the rigid frame 6 so as to be able to advance and retreat in the direction of the anvil a1. That is, the cutting blade m1 reciprocates in the vertical direction between the paper P and the penetrating position (N) penetrating the anvil a1 from the standby position (M) separated from the anvil a1 constituting the stage A. Is set to get.

  The cutting blade m1 is a metal blade main body ma provided at the tip thereof with a blade edge hs for forming a cut hole c in the paper P by reciprocating relative to the paper P and penetrating the paper P. The blade body ma is provided penetrating in the thickness direction, and when the blade body ma is pulled out of the cut hole c, the cut hole c is engaged with the binding member t2 forming a belt shape for binding the paper P. When the binding member insertion window ma3 passes through the cut hole c by separating from the binding member insertion window ma3 for inserting the binding member t2 and the blade main body ma and rising from the blade main body ma in the thickness direction. A gap-forming raised portion mc that separates the cut edges p21 and p31 forming a pair facing each other of the cut hole c to form a gap sm is provided.

  In this embodiment, the cut hole c formed by the blade body ma includes a main slit c1 and a pair of sub slits c2 provided continuously from both ends of the main slit c1. The cut hole c is formed in a substantially U-shape, and the sub slit c2 is formed from both ends of the main slit c1 in the direction opposite to the edge p1 of the paper P to be bound (center side of the paper P). It is set to extend.

  The blade body ma is made of metal, and includes a main blade ma1 for forming the main slit c1, and a sub blade ma2 for forming a sub slit c2 bent and extended from the main blade ma1 to the inner surface side. It is a thing. Both ends of the cutting edge hs formed at the tip of the main blade ma1 are continuous with the cutting edge hs formed at the tip of the sub blade ma2. A binding member insertion window ma3 formed by cutting out an intermediate portion in the vertical direction of the main blade ma1 is provided in the vertical intermediate region of the blade body ma.

  The binding member insertion window ma3 has a terminal end t22 of the binding member t2 that is located on the one surface side facing the anvil a1 in the paper P when the cutting blade m1 returns from the penetrating position (N) to the standby position (M). By moving the side of the sheet P through the cut hole c formed in the sheet P, the sheet P is moved to the one side facing the anti-anvil side of the sheet P. The binding member insertion window ma3 has an opening lateral width dimension substantially the same as the width dimension of the main blade ma1.

  A plate-like mounting plate ma4 that is bent in a direction substantially orthogonal to the main blade ma1 and has a pin hole ma7 at the center is provided at the base end of the blade body ma.

  The raised portion mc is made of a synthetic resin and is disposed between the pair of sub blades ma2. The raised portion mc extends in the vertical direction, and has a rail shape having an upper end edge inclined forward in a side view and an outer end edge extending in the vertical direction in a side view. The raised portions mc are provided at two places on the left and right sides, and are disposed adjacent to the inside of the sub-blade ma2 that makes a pair.

  The raised portion mc is provided on a synthetic resin frame member mb mounted on the binding member insertion window ma3 of the blade body ma. That is, the raised portion mc extends from the distal end portion mc1 positioned between the cutting edge hs of the blade body ma and the upper end edge ma5 serving as the distal end edge of the binding member insertion window ma3 to the lower end edge ma6 serving as the base end edge of the binding member insertion window ma3. It extends continuously to the rear end mc2 located in the vicinity.

  The raised portion mc and the frame member mb are integrally molded products made of synthetic resin. In other words, the raised portion mc is integrally provided on the front side of the synthetic resin frame member mb. The frame member mb is attached to the binding member insertion window ma3 using elastic deformation of the member.

  The frame member mb has a rectangular frame shape that fits tightly into the binding member insertion window ma3. The frame member mb extends horizontally between the left and right side portions mb1 extending in the vertical direction and the top side of the left and right side portions mb1. The frame portion mb <b> 2 and a base end side horizontal portion mb <b> 3 provided between the base end portions of the left and right side portions mb <b> 1 are provided. The raised portion mc is integrally connected to both side portions mb1 of the frame member mb. The leading end of the raised portion mc is positioned above the leading end side horizontal portion mb2 of the frame member mb, that is, on the leading end side of the cutting blade m1. The upward end surface mc3 of the tip portion mc1 in the raised portion mc is inclined so as to gradually move downward toward the front side.

  The front end side horizontal portion mb2 of the frame member mb has an upper surface portion that is inclined so as to gradually move downward toward the rear side. An elastic claw mb4 for attachment is integrally provided on the base end side horizontal portion mb3 of the frame member mb. The front end side horizontal portion mb2 and the base end side horizontal portion mb3 of the frame member mb have substantially the same thickness dimension as the main blade ma1, and when mounted on the blade body ma, the main blade ma1 The outer surface is set to be substantially flush. Inner edge portions of both side portions mb1 of the frame member mb are inside of both side edges of the binding member insertion window ma3, and outer edge portions of the both side portions mb1 of the frame member mb are both side edges of the binding member insertion window ma3. The positions and dimensions of the side edge portions mb1 are set so as to be on the outer side. For this reason, the outer edge portions of both side portions mb1 of the frame member mb are in contact with the sub blade ma2 while being attached to the blade body ma, and the frame member mb is prohibited from moving to the inner surface side of the cutting blade m1. Have a role to play.

  The attachment of the frame member mb and the raised portion mc to the blade body ma is performed, for example, as follows.

  First, the front end portion mc1 of the raised portion mc protruding above the front end side horizontal portion mb2 of the frame member mb is inserted from the outer surface side of the main blade ma1 into the inner surface side of the main blade ma1 through the binding member insertion window ma3. .

  Next, the elastic member provided on the base end side horizontal portion mb3 of the frame member mb by bringing the front end side horizontal portion mb2 having the upper end face inclined backward in the frame member mb into contact with the upper end edge ma5 of the binding member insertion window ma3. The claw mb4 is pushed into the binding member insertion window ma3 while being elastically deformed temporarily.

  As a result, both side portions mb1 of the frame member mb are locked to the sub blade ma2, and the frame member mb is positioned with respect to the blade body ma. That is, when the mounting of the resin member (the frame member bm and the member integrally formed with the resin having the raised portion mc as a main part) to the blade main body ma is completed, the raised portion mc of the resin member is the cutting blade. It will be in the state which protruded in the inner surface side rather than the main blade ma1 of m1. In this attached state, both side portions mb1 of the frame member mb are locked to the opening edge on the outer surface side of the binding member insertion window ma3, while the tip portion mc1 of the raised portion mc and the tip portion of the elastic claw mb4 are The frame member mb and the raised portion mc, which are resin-integrated molded products, are prevented from being detached from the cutting blade m1 by being locked to the opening end surface on the inner surface side of the binding member insertion window ma3. . The binding member insertion window ma3 has a quadrangular shape, and the frame member mb engages with the four corners of the binding member insertion window ma3. For this reason, the frame member mb is difficult to be deformed even when a force is applied, and is difficult to come off from the binding member insertion window ma3 during use.

  The blade holder m2 holds the proximal end side of the cutting blade m1 and moves up and down together with the cutting blade m1. The blade holder m2 has a blade holding portion m21 on the front side and a paper pressing biasing portion m22 on the rear side.

  The blade holding part m21 is provided in an insertion groove m23 into which the base end portion including the attachment plate ma4 in the blade body ma is inserted, and a right and left provided in a portion corresponding to the pin hole ma7 of the attachment plate ma4 inserted in the insertion groove m23. And a pin insertion hole m24 extending in the direction. A pin v5 is inserted into the pin insertion hole m24 of the blade holder m2 and the pin hole ma7 of the blade body ma, whereby the cutting blade m1 is attached to the blade holder m2. A drive shaft m7 is provided in the middle portion of the blade holder m2 so as to penetrate in the left-right direction. The vicinity of both ends of the drive shaft m7 is engaged with the guide slit 613 so that it can be guided by the guide slit 613 provided in the rigid frame 6 and extending in the vertical direction. Both ends of the drive shaft m7 protrude outward from the outer surface of the rigid frame 6.

  The paper pressing biasing portion m22 is disposed at the rear portion of the blade holder m2, has a floor plate m25, and has a slit m26 opened rearward at the center in the left-right direction of the floor plate m25.

  The paper presser m4 is for pressing the start end t21 side of the binding member t2 against the lower surface of the anvil a1 together with the paper P in the stage A. The paper presser m4 includes a head m41 having a pressing surface m44 at the upper end, a body part m42 suspended downward from the lower surface of the head m41, and a flange part m43 provided at the lower end part of the body part m42. The width of the collar portion m43 is set larger than that of the trunk portion m42.

  The head m41 has a block shape having a pressing surface m44 for pressing the binding member t2 and the paper P against the anvil a1 on the upper surface. In the process of inserting the paper P into the paper insertion gap sk, the front end of the binding member t2 is guided to the front portion of the pressing surface m44, that is, the entrance side of the paper insertion gap sk on the pressing surface m44. A guide groove m45 for positioning the binding member t2 in the width direction is provided.

  A guide block m46 is provided at the rear end of the head m41. The guide block m46 engages with the rear rail block m6 and is guided so as to be movable up and down. Protruding protrusions m47 extending in the vertical direction are provided on both side surfaces of the guide block m46, and the protruding protrusions m47 are always engaged with the disengagement groove m66 of the rear rail block m6.

  The flange m43 is located below the floor plate m25 in the blade holder m2, and the width dimension is set larger than the width of the slit m26 of the floor plate m25.

  The trunk | drum m42 is distribute | arranged so that advance / retreat operation | movement is possible in the slit m26 provided in the floor board m25. Then, a paper spring m3 wound around the body m42 is interposed between the upper surface of the floor plate m25 in the blade holder m2 and the lower surface of the head m41 in the paper retainer m4, whereby the paper retainer m4 is placed in the blade holder. It can be elastically biased upward with respect to m2.

  The front rail block m5 is disposed between the side plates 61 of the rigid frame 6 so as to close the opening portion on the front side of the rigid frame 6, and the upper end portion is engaged with the upper edge of the front portion of the side plate 61 in the rigid frame 6. The lower end is attached to the inner surface of the side plate 61 in the rigid frame 6 using a pin v6. On the back surface of the front rail block m5, a rail m51 whose central portion protrudes rearward is formed. And the front-end part of the blade holder m2 is guided to the rail m51 so that raising / lowering is possible. A pin insertion hole m53 that penetrates in the left-right direction is provided at the lower end of the front rail block m5, and the front rail block m5 is attached to the rigid frame 6 via a pin v6 that is inserted into the pin insertion hole m53. Yes.

  On the front side of the upper end portion of the front rail block m5, there is provided a presser accommodating portion m54 that accommodates the pressing member o1 of the binding member pressing portion O so as to be rotatable in the vertical direction. The presser accommodating portion m54 mainly includes a pair of side walls m55 forming a depressed presser accommodating space and a shaft holding portion m56 for holding the support shaft o12 of the presser o1 provided on the side walls m55. It is configured. A visual recognition window m57 that communicates in the front-rear direction is provided at an intermediate portion in the vertical direction of the front rail block m5. For example, when performing maintenance or the like, the user can visually recognize the vicinity of the cutting blade m1 through the window 7d of the main cover 7 and the visual window m57 of the front rail block m5 and use a tool such as tweezers. Can be accessed.

  The rear rail block m6 has a channel shape having a guide groove m61 opened forward, and guides the guide block m46 of the paper presser m4 at the upper end portion of the guide groove m61 so as to be movable up and down, and other parts of the guide groove m61. That is, the blade holder m2 is guided so as to be movable up and down at a portion from the intermediate portion to the lower portion. On both sides of the head portion m62 in the rear rail block m6, a locking groove m66 opened downward is formed. A protrusion m47 provided on the guide block m46 of the paper presser m4 is engaged with the release preventing groove m66 so as to be movable up and down. A nut holding portion m63 that holds a nut m64 to which a bolt v1 for fixing the first casing D to the anvil a1 is screwed is formed at the rear end portion of the head portion m62. A projection m65 having a shaft hole m67 corresponding to the through-hole 617 of the rigid frame 6 is provided on the rear side upper portion of the rear rail block m6, and the shaft j2 is inserted into the shaft hole m67. Yes.

<Operation converter N>
The motion conversion unit N removes the paper P and the anvil a1 from the standby position (M) where the cutting blade m1 is separated from the anvil a1 constituting the stage A by the operating force of the one hand Q applied to the binding operation unit K. It reciprocates between the penetrating position (N) that penetrates. In this embodiment, the motion conversion unit N is mainly configured with a pair of left and right rotating arms k2 extending from the base end of the operation unit body k1 in the binding operation unit K. A long hole k21 extending in the extending direction is formed on the rotation end side of the rotation arm k2, and both ends of the drive shaft m7 are engaged with the long hole k21. That is, when the binding operation unit K is rotated from the initial position (Q) to the operation position (R), the rotation end of the rotation arm k2 is rotated forward and upward, and the drive shaft m7 is biased upward. Thus, the cutting blade m1 is configured to rise from the standby position (M) to the penetrating position (N).

<Binding member pressing portion O>
The binding member pressing portion O is configured such that the end portion t22 of the binding member t2 pulled out from the upper surface side to the lower surface side of the paper P by the reciprocating motion of the cutting blade m1, and finally the lower surface of the paper P and the binding member t2. This is for pressing and attaching to the lower surface of the start end t21, and is disposed near the entrance of the stage A.

  When the front end portion of the paper P is inserted toward the back side of the paper insertion gap sk, the binding member pressing portion O does not generate a large resistance to the paper P, and pulls out the paper P to move the front end of the paper P. When the paper insertion gap sk is pulled out from the back side toward the entrance side, the lower surface side of the paper P can be pressed toward the anvil a1 with a relatively strong force.

  The binding member pressing portion O includes a pressing element o1 having an arc surface o11 slidably contacting the lower surface side of the paper P on its upper surface, and a spring o2 that elastically urges the pressing element o1 in the paper P direction. The presser o1 includes a circular arc surface o11 in contact with the paper P and a support shaft o12 at a position biased forward from a virtual axis corresponding to the circular arc surface o11. The support shaft o12 of the presser o1 is pivotally supported by a shaft holding portion m56 provided on the upper portion of the front rail block m5. The spring o2 has a coil spring shape, and is supported by a spring support protrusion o13 provided on the presser o1 in a tilted posture. The spring o2 is disposed between the front rail block m5 and the presser o1. The support shaft o12 is provided at a position that is eccentric to the opening end side of the paper insertion gap sk with respect to the virtual center portion of the arc surface o11. The position of the support shaft o12 and the arc surface o11 is determined when the paper is inserted. The pressing degree of the pressing element o1 with respect to the sheet P and the pressing degree of the pressing element o1 with respect to the sheet P and the binding member t2 when the sheet is pulled out are changed.

<< Explanation of binding machine operation >>
The operation of the binding machine described above will be described with reference to FIGS. 1 to 5, FIG. 8, and FIGS.

  As shown in FIG. 8, the binding machine hangs the finger Q2 from the index finger to the little finger in one hand Q on the one-hand holding part 7c of the second housing J and performs the binding operation on the thumb ball Q1 in one hand Q. In a state where it is hung on the portion K, it can be held with only one hand Q. The binding machine is configured to operate the feed operation unit F using the thumb Q3 in one hand Q while the binding machine is gripped by one hand Q.

  The outline of the operation for binding the paper P is as follows.

  First, the binding member supply mechanism B is actuated by operating the feed operation unit F from the initial position (S) to the final operation position (T) with the thumb Q3, and a single binding member t2 is supplied to the stage A. To do. This state is a standby state in which the binding member t2 is supplied to the stage A.

  Next, for example, the user holds a plurality of sheets P to be bound with the other hand and inserts the sheet P into the stage A. The binding member t <b> 2 in the standby state and the edge p <b> 1 of the paper P come into contact with each other in the middle of the transition of the plurality of papers P to the back of the paper insertion gap sk. Then, the binding member t2 is detached from the release tape mount t1 when the edge p1 of the paper P is further advanced. At the stage where the edge p1 of the paper P reaches the back of the paper insertion gap sk, the paper portion p2 of the paper P is covered in a lateral U-shape by the binding member t2. This state is a first-stage engaged state in which the paper P and the binding member t2 are engaged in the first stage.

  Thereafter, the binding mechanism C is operated by moving the cutting blade m1 forward and backward by performing a gripping operation so that the finger Q2 of the one hand Q being gripped and the thumb ball Q1 are brought closer to each other. In the forward movement from the standby position (M) to the penetration position (N) of the cutting blade m1, the binding operation section K is rotated from the initial position (Q) to the operation position (R) by the user's operation force. Is done. On the other hand, the backward movement from the penetration position (N) of the cutting blade m1 to the standby position (M) is mainly performed by the elastic biasing force of the return spring L. By such an advance / retreat operation of the cutting blade m1, the binding member t2 supplied to the stage A can be passed through and engaged with the paper P. This state is a second stage engagement state in which the paper P and the binding member t2 are engaged in the second stage.

  Subsequently, when the paper P is extracted from the stage A, as shown in FIGS. 1 to 3, the paper P is in a binding completion state in which the paper P is bound by the binding member t2. In other words, the binding completion state is a third stage engagement state in which the paper P and the binding member t2 are engaged in a third stage.

<Operation of the binding member supply mechanism B>
The operation of the binding member supply mechanism B will be described in detail with reference to FIGS. 4, 5, and 28 to 30. Here, FIG. 29 shows a cross-sectional view corresponding to the feed operation unit F at the initial position (S) in the A column, and a cross-sectional view corresponding to the feed operation unit F at the lock position (U) in the B column. ing.

  That is, the A column in FIG. 29 shows a cross-section of the part corresponding to the driving wheel holding means h4 of the sending operation unit F and the fixed dimension feeding unit H in the upper stage, and the sending operation part F, And the cross section of the part corresponding to the one-way transmission means h3 of the fixed dimension feeding part H is shown, and the cross section of the part corresponding to the head s31 of the refill E is shown in the lower stage.

  29, the upper section shows a cross section of the part corresponding to the driving wheel holding means h4 of the feeding operation section F and the fixed dimension feeding section H in the upper stage, and the feeding operation section F, And the cross section of the part corresponding to the one-way transmission means h3 of the fixed dimension feeding part H is shown, and the cross section of the part corresponding to the head s31 of the refill E is shown in the lower stage.

  When the push-out operation is performed by the thumb Q3, the feed operation unit F is operated from the initial position (S) shown in FIG. 29A to the final operation position (T) shown in FIG. The operating portion F is finely restored in the initial position (S) direction, and is locked at the lock position (U) shown in FIG. The rotation operation from the initial position (S) to the final operation position (T) of the feed operation part F is transmitted to the small diameter gear h21 via the large diameter gear f15, whereby the driving wheel h1 of the fixed dimension feed part H is transmitted. By rotating by a certain angle, the release tape mount t1 is fed in a certain dimension in the direction of the take-up reel 5.

  In this embodiment, by operating the delivery operation unit F from the initial position (S) to the final operation position (T), the drive wheel h1 is rotated by 123 °, and the operation to the delivery operation unit F is stopped. Thus, the sending operation unit F is finely restored from the final operation position (T) to the lock position (U), and the driving wheel h1 is finely reversed by the action of the driving wheel holding means h4 and is locked at a position rotated by 120 °. .

  As a result, as shown in FIG. 4, FIG. 5, FIG. 29B, etc., the operating tape T wound around the supply reel 4 corresponds to the longitudinal dimension of one binding member t2. It is pulled out by a certain dimension and transferred in the direction of the separation inducing part u1.

  The peeling tape mount t1 of the operating tape T is suddenly changed in the process of passing through the separation inducing portion u1. Then, the binding member t2, which is relatively rigid as compared with the release tape mount t1, starts to be sequentially peeled from the start end t21 side with respect to the release tape mount t1.

  Thereafter, the binding member t2 is supplied to the stage A through the opening a11 of the anvil a1 in a cantilever state in which only the terminal end t22 side is attached to the release tape mount t1.

  The used release tape mount t1 that is urged by the drive wheel h1 and is fed in the direction of the take-up reel 5 is sequentially taken up by the take-up reel 5 and collected. That is, when the peeling tape mount t1 is pulled by the power of the driving wheel h1, the feeding reel 4 is forcibly driven by the pulling force, and the rotational force of the feeding reel 4 is transmitted to the feeding gear i1 via the clutch member i2. The rotation of the feeding gear i1 is transmitted to the take-up reel 5 through the take-up gear i3.

  In the stage where the binding member t2 is supplied to the stage A, the standby end in which the end portion t22 side is attached to the release tape mount t1 and the start end portion t21 side which is the leading end portion extends into the second housing J through the stage A. It becomes a state. The standby state is shown in FIGS. 4, 5, 28, 29B, and 31. FIG.

  From the standby state described above, a plurality of stacked sheets of paper P to be bound are inserted into the stage A and the first stage of engagement is taken. Thereafter, the binding mechanism C is operated from the first-stage engaged state, thereby taking the second-stage engaged state. After that, when the paper P is pulled out from the stage A from the second-stage engaged state, the binding completion state as the third engaged state is obtained.

<Operation of binding mechanism C>
The operation of the binding mechanism C will be described in detail as follows.

  When a plurality of sheets P to be bound are inserted into the stage A, as shown in FIGS. 31 and 32, the edge p1 of the sheet P comes into contact with the intermediate portion of the binding member t2 in the standby state from the adhesive layer side. .

  Then, the binding member t2 is bent and pushed into the back of the stage A together with the paper P (first stage engagement state). At this time, the start end t21 of the binding member t2 positioned on the lower surface side of the paper P is guided by a guide groove m45 formed on the upper surface of the paper presser m4, and the binding member t2 is moved in the width direction. It is difficult to be displaced.

  Next, as shown in FIG. 30, when the binding operation unit K is rotated from the initial position (Q) to the operation position (R), the cutting blade m <b> 1 is on standby as shown in FIGS. 33 and 34. Ascending from the position (M) to the penetrating position (N), the binding member insertion window ma3 of the cutting blade m1 moves to the upper surface side of the paper P. As a result, the end portion t22 of the binding member t2 peeled off from the release tape mount t1 in the process of pushing the paper P into the paper insertion gap sk enters the binding member insertion window ma3 of the cutting blade m1.

  Thereafter, when the operation to the binding operation portion K is stopped, the cutting blade m1 is moved from the penetrating position (N) to the standby position (M) by the urging force of the return spring L as shown in FIG. At this stage, the end t22 side of the binding member t2 that has entered the binding member insertion window ma3 is engaged with the binding member insertion window ma3 of the cutting blade m1, and is pulled into the lower surface side of the paper P through the cut hole c (second). Stage engagement state).

  In this embodiment, the cutting blade m1 has a structure including a main blade ma1 and a sub blade ma2, and the cut hole c formed by the cutting blade m1 has a main slit c1 and a sub slit c2. That is, a substantially U-shaped shape. A short tongue-shaped cantilever portion p3 formed by the cut hole c having the main slit c1 and the sub slit c2 is easily shifted in the thickness direction of the paper P. For this reason, as shown in FIG. 33, the cantilever part p3 is moved to the anvil a1 side by the upward end surface mc3 of the raised portion mc provided on the cutting blade m1 while the cutting blade m1 performs the ascending operation on the paper P. Then, as shown in FIG. 33, the cantilever part p3 of the paper P comes into sliding contact with the outer edge extending in the vertical direction in the raised portion mc formed of synthetic resin. Thereby, in the state where the cutting blade m1 has reached the penetration position (N), the cutting edge p31 of the cantilever part p3 and the cutting edge p21 of the paper part p2 where the binding member t2 will be interposed later. A gap sm is formed between the two, and they are in a separated state.

  Since the raised portion mc is made of synthetic resin, the raised portion mc and the cantilever p3 slide smoothly even when the cutting blade m1 returns from the penetrating position (N) to the standby position (M). It has become possible. For this reason, when the cutting blade m1 performs the backward operation, the paper P and the raised portion mc made of synthetic resin are in sliding contact with each other, so that the resistance of the cutting blade m1 due to friction with the paper P hardly occurs. That is, the end portion t22 side of the binding member t2 is indirectly engaged with the binding member insertion window ma3 in the cutting blade m1 that smoothly moves backward, and the paper passes smoothly through the cut hole c by the cutting blade m1. It will be guided to the lower surface side of P.

  FIG. 35 shows a state in which the end portion t22 side of the binding member t2 is guided to the lower surface side which is the other surface of the paper P through the cut hole c.

  In this state, as shown in FIG. 36, for example, when the operation of pulling out the paper P from the stage A with the other one hand is performed, the end portion t22 side of the binding member t2 is pressed by the binding member pressing portion O in the pulling process. It is pressed toward the paper P by the child o1, and the end portion t22 side of the binding member t2 is adhered to the lower surface of the paper P and the lower surface that is the outer surface of the start end portion t21 of the binding member t2, and the binding is completed.

  The paper presser m4 serves to press the paper portion p2 of the paper P and a part of the binding member t2 against the anvil a1, and moves up and down in conjunction with the cutting blade m1. That is, in the state where the cutting blade m1 is held at the standby position (M), the collar portion m43 of the paper presser m4 is locked to the lower surface of the floor plate m25 in the blade holder m2 and remains in the lowered position away from the paper P. ing. When the cutting blade m1 starts to rise from the standby position (M), the lifting operation of the blade holder m2 is transmitted to the head m41 of the paper presser m4 via the spring m3, so that the paper presser m4 and the cutting blade m1 are used. Start climbing. When the pressing surface m44 of the paper presser m4 comes into contact with the lower surface of the paper P via the start end t21 of the binding member t2, the paper presser m4 is prevented from further rising. After that, since the cutting blade m1 continues to rise while compressing the spring m3, the paper presser m4 is pressed against the paper P by the repulsive force of the spring m3 that gradually increases.

  In this way, the paper presser m4 suppresses the positional deviation of the paper P with respect to the stage A when the cutting blade m1 passes through the paper P, and cooperates with the anvil a1 at the start end t21 of the binding member t2. It plays the role of sticking to P strongly. When the cutting blade m1 reaches the predetermined penetrating position (N), the blade holder m2 comes into contact with the lower side of the head m41 of the paper presser m4, and the cutting blade m1 further rises. It becomes impossible. 30 and 34 show a state where the cutting blade m1 is in the penetrating position (N).

  As described above, the plurality of sheets P are bound by the binding member t2. The sending operation unit F locked to the lock position (U) is released from the state locked to the lock position (U) by operating the binding operation unit K to the operation position (R). The self-return to the initial position (S) is performed by a biasing force of a spring (not shown). That is, when the binding operation portion K is operated from the initial position (S) to the final operation position (T), the pushing portion k32 provided in the binding operation portion K pushes up the receiving portion g14 of the lock member g1. Then, the engagement between the claw g13 of the lock member g1 and the engagement hole f25 of the feed operation portion F is released, and the feed operation portion F returns to the initial position (S).

  As described above, the cutting blade m1 of the binding machine according to this embodiment has a cutting edge hs for forming a cut hole c in the paper P by reciprocating relative to the paper P and penetrating the paper P. A blade main body ma provided at the tip thereof, and a binding member t2 which is provided so as to penetrate the blade main body ma in the thickness direction and binds the paper P when the blade main body ma is extracted from the cut hole c. The binding member insertion window ma3 for inserting the binding member t2 into the cut hole c in a state of being engaged with the blade main body ma is separated from the blade main body ma, and the binding member insertion window is raised from the blade main body ma in the thickness direction. When ma3 passes through the cut hole c, there is provided a gap forming raised part mc that separates the cut ends p21 and p31 that form a pair opposed to the cut hole c and forms a gap sm. For this reason, in the process of engaging the binding member t2 with the paper P, the occurrence of the problem that the cutting edges p21 and p23 of the cut hole c formed by the cutting blade m1 are caught by the cutting blade m1 is suppressed. It is possible to provide the cutting blade m1 of the binding machine that is excellent in the degree of freedom of design to be obtained. That is, since the raised portion mc for forming the gap is formed separately from the blade body ma, a necessary measure for smoothing the sliding with the paper P on the raised portion mc forming the separate body is taken. It can be taken and has a high degree of freedom in design for suppressing the occurrence of the above-mentioned problems.

  The cut hole c is provided with sub-slits c2 at both ends of the main slit c1. The blade body ma includes a main blade ma1 for forming the main slit c1 and a sub blade ma2 for forming a sub slit c2 bent and extended from the main blade ma1. For this reason, since the cantilever part p3 made by the main slit 2 and the sub slit c2 can be brought into contact with the cutting blade m1, the frictional force between the paper P and the cutting blade m1 can be suitably reduced. It becomes.

  A raised portion mc is disposed between the pair of sub-blades ma2. For this reason, the cutting edge p31 on the side of the cantilever p3 formed by the main slit 2 and the sub slit c2 can be suitably associated with the raised portion mc.

  A raised portion mc is provided on the frame member mb. The frame member mb is attached to the binding member insertion window ma3 of the blade body ma. For this reason, the raised part mc which makes a separate body can be suitably attached to the blade main body ma via the frame member mb.

  The raised portion mc is positioned in the vicinity of the lower end edge ma6 that is the base end edge of the binding member insertion window ma3 from the front end portion mc1 that is located between the cutting edge hs of the blade body ma and the upper end edge ma5 that is the front end edge of the binding member insertion window ma3. It extends continuously to the rear end mc2. For this reason, the cantilever part p3 in the paper P is suitable for the raised part mc so as to form a gap sm in which a part of the binding member t2 is located between the cutting edges p21 and p31 during the reciprocating operation of the cutting blade m1. It can be attached to.

  The raised part mc is made of a synthetic resin. For this reason, it becomes difficult for fine irregularities to be formed on the surface, and the paper P can slide smoothly.

  The raised portion mc is provided on the synthetic resin frame member mb, and the frame member mb is configured to be attached to the binding member insertion window ma3 using elastic deformation of the member. For this reason, the raised portion mc can be suitably attached to the blade body ma via the frame member mb.

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

  In the above-described embodiment, the bulging portion is integrally formed with the frame member. However, the embodiment is not limited to such a configuration.

  Here, what is shown in FIG.37 and FIG.38 has shown the cutting blade m1 which is other embodiment. In the other embodiments, the same or corresponding configurations as those of the above-described embodiment will be described with the same reference numerals, and detailed description thereof will be omitted.

  The thing shown in FIG. 37 has the thing of the aspect which attached the protruding part mc directly with respect to the blade main body ma. In other words, the cutting blade m1 of the binding machine is provided with a raised portion mc between the left and right end edges te of the binding member insertion window ma3 and the sub blade ma2 that makes a pair. The raised portion mc includes a plurality of positioning convex portions mc4 on the blade body ma side. Then, the raised portion mc is positioned on the main blade ma1 of the blade body ma by engaging the positioning projection mc4 of the raised portion mc with the positioning recess ma11 provided in the vicinity of the left and right end edges te1 of the binding member insertion window ma3. Has been. Note that an adhesive may be interposed between the raised portion mc and the blade body ma. FIG. 37 shows an example in which the positioning recess ma11 is provided in the main blade ma1 of the blade body ma. However, the positioning recess is provided in the sub blade ma2 of the blade body ma and the raised portion mc is formed inward from the sub blade ma2. It may be arranged. In addition, it replaces with the positioning convex part mc4 mentioned above, employ | adopts the convex part for attachment, and replaces with the positioning recessed part ma11 of the blade main body ma mentioned above, employ | adopts the recessed part for attachment, and makes the protruding part mc with respect to the blade main body ma You may make it attach.

  The thing shown in FIG. 38 has shown the thing of the aspect which attached the protruding part mc directly with respect to the blade main body ma. That is, the cutting blade m1 of the binding machine has a raised portion mc attached to a portion in the vicinity of the binding member insertion window ma3 in the blade body ma. And the protruding part mc is positioned so that it cannot rotate or shift in the vicinity of the binding member insertion window ma3 on the blade body ma above and below the binding member insertion window ma3. As an aspect of positioning so as not to rotate or shift, for example, an aspect in which a positioning convex portion is provided on the raised portion mc and a positioning concave portion corresponding to the positioning convex portion is provided on the blade body ma can be considered. You may make it the connection of the protruding part mc and the blade main body ma interpose an adhesive agent. Even if configured in this manner, the intended purpose can be achieved.

  It is good also as what attached the auxiliary blade which forms the subcut hole corresponding to the subslit in embodiment mentioned above to the frame member with which the binding member penetration window is mounted | worn. That is, a blade body having a cutting edge for forming a cut hole in the paper by reciprocating the cutting blade of the binding machine relative to the paper and penetrating the paper, and the blade body Is a separate body, and is provided with an auxiliary blade having a cutting edge for forming a sub-cut hole continuous with the cut hole at the tip thereof, and penetrating in the thickness direction in the blade body, and the blade body is cut in the cut direction. A binding member insertion window for inserting the binding member into the cut hole in a state in which a binding member that forms a band for binding paper when being pulled out from the hole is engaged, and the blade body is separated from the blade body. A raised portion for forming a gap that forms a gap by separating a pair of cut end edges of the cut hole when the binding member insertion window passes through the cut hole by protruding from the blade body in the thickness direction. And with It may be. As a more specific aspect, the auxiliary blade and the raised portion may be provided on a frame member attached to the binding member insertion window.

  Various shapes can be adopted as the shape of the blade body. That is, the blade body may be configured mainly with the main blade, or may not include the sub blade.

  In the embodiment described above, the binding member is indirectly engaged with the binding member insertion window via the frame member. However, the binding member may be directly engaged with the binding member insertion window.

  The raised portion is not limited to one made of a synthetic resin as long as it is a separate body from the blade body.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

m1 ... Cutting blade ma ... Blade body mb ... Frame member mc ... Raised portion P ... Paper t2 ... Binding member

Claims (10)

A blade body provided with a blade edge at its tip to form a cut hole in the paper by reciprocating relative to the paper and penetrating the paper;
The blade body is provided so as to penetrate in the thickness direction, and the binding member is inserted into the cut hole in a state in which a band-shaped binding member for binding paper is engaged when the blade body is extracted from the cut hole. A binding member insertion window for passing,
Separate from the blade body, and projecting from the blade body in the thickness direction, the binding member insertion window passes through the cut hole, so that the cutting edges forming a pair facing the cut hole are separated from each other. A cutting blade for a binding machine, comprising a gap-forming raised portion for forming a gap. The cut hole is provided with sub slits at both ends of the main slit,
2. The binding machine according to claim 1, wherein the blade body includes a main blade for forming the main slit and a sub blade for forming the sub slit that is bent and extends from the main blade. Cutting blade. The cutting blade of a binding machine according to claim 2, wherein the raised portion is arranged between the pair of sub-blades. The cutting blade of a binding machine according to claim 1, wherein the raised portion is provided on a frame member, and the frame member is attached to a binding member insertion window of the blade body. The raised portion continuously extends from a distal end located between a cutting edge of the blade body and a distal end edge of the binding member insertion window to a rear end located in the vicinity of the proximal end edge of the binding member insertion window. The cutting blade of the binding machine according to Item 1. The raised portion is made of synthetic resin, and is provided on a synthetic resin frame member,
The cutting blade of a binding machine according to claim 1, wherein the frame member is configured to be attached to the binding member insertion window using elastic deformation of the member. The cutting blade of a binding machine according to claim 2 or 3, wherein the raised portion is disposed between left and right end edges of the binding member insertion window and the pair of sub blades. The raised portion is attached to a portion near the binding member insertion window in the blade body, and is positioned at least at the upper and lower portions of the binding member insertion window so as not to rotate or shift. The cutting blade of the binding machine of claim | item 1, 2, 3, 4, 5, 6 or 7. A blade body having a cutting edge for forming a cut hole in the paper by reciprocating relative to the paper and penetrating the paper, and a blade body separate from the blade body. An auxiliary blade provided with a cutting edge for forming a continuous subcut hole at its tip,
The binding member is inserted in the cut hole in a state in which the binding member is formed so as to penetrate the blade body in the thickness direction, and a band-like binding member for binding paper when the blade body is pulled out from the cut hole. A binding member insertion window for passing,
Separate from the blade body, and projecting from the blade body in the thickness direction, the binding member insertion window passes through the cut hole, so that the cutting edges forming a pair facing the cut hole are separated from each other. A cutting blade for a binding machine, comprising a gap-forming raised portion for forming a gap. The cutting blade of the binding machine according to claim 9, wherein the raised portion is provided on a frame member attached to the binding member insertion window.

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