WO2006061898A1

WO2006061898A1 - Filing instrument

Info

Publication number: WO2006061898A1
Application number: PCT/JP2004/018309
Authority: WO
Inventors: Kanji Tanaka; Hiroshi Arai; Hiroshi Nakano
Original assignee: Lihit Lab., Inc.
Priority date: 2004-12-08
Filing date: 2004-12-08
Publication date: 2006-06-15

Abstract

A filing instrument, comprising an operating member (18) having a pair of operating pieces (30) and (32) allowed to abut on each other in the holding space of a holding member (16) and held movably in the longitudinal direction of the holding member (16), space parts (36a) and (38a) formed to be extended in the longitudinal direction of the operating member (18) in a part of the abutting parts of the pair of operating pieces (30) and (32), spring member fixing parts (36a) and (38a) formed to be projected from the pair of operating pieces (30) and (32) so as to face the holding member (16) in the longitudinal direction, and a spring member (40) stored in the spaces (36a) and (38a) with both ends of the winding part (44) thereof locked to the spring member fixing parts (36a) and (38a). Fixed tip parts (42a) and (42b) of the spring member (40) extending from both ends of the winding part (44) are supported on the support parts (36c) and (38c) of the operating pieces (30) and (32) facing the operating pieces (30) and (32) on which the spring member fixing parts (36a) and (38a) locked to the end parts of the winding part (44) are formed. When split rods (12a) and (12b) and (14a) and (14b) are combined with each other to form the filing rods (12) and (14), a distance between the both side tip parts (42a) and (42b) of the spring member (40) in the longitudinal direction of the holding member (16) is smaller than a distance between both ends of the winding part (40).

Description

Specification

Binding tool

Technical field

[0001] The present invention relates to a binding tool, and more particularly to a binding tool used as, for example, a ring binder or a file.

Background art

FIG. 29 is an illustrative view showing one side of an example of a conventional binding tool, and FIG. 30 is an illustrative view showing the other side. The binding tool 1 includes a long holding member 2. The holding member 2 has a curved cross-sectional shape, and a holding space is formed inside thereof. In this holding space, a pair of rectangular plate-like actuating members 3a, 3b are held. The actuating members 3a and 3b are abutted at one end in the width direction and are held so as to be slidable in the longitudinal direction of the holding member 2. Through holes are formed in the holding member 2 at intervals in the longitudinal direction. The substantially half-circular half split 4 is fixed to the actuating members 3a and 3b so as to penetrate the through hole. Then, the half-split 4 fixed to the pair of actuating members 3a and 3b is combined to form a substantially ring-shaped binding rod, and sheets and the like are bound.

[0003] In the central portion of the holding member 2 in the longitudinal direction, a gap portion 5 is formed in the butted portion of the operating members 3a and 3b. In this gap portion 5, the engaging portion 6 is formed so as to protrude from the operating members 3 a and 3 b so as to face the longitudinal direction of the holding member 2. In the vicinity of the locking part 6, a support part 7 by a through hole is formed in the locking member 3 b (3 a) facing the actuating member 3 a (3 b) where the locking part 6 is formed. A panel member 8, such as a coil panel, is disposed in the gap 5, and both ends of the shore portion of the panel member 8 are fitted into the locking portions 6 and locked. The leading end portion of the flange member 8 extending in the shore portion force is inserted into and supported by the support portion 7 facing the locking portion 6. At this time, the tip portions on both sides of the panel member 8 are supported by the support portion 7 so as to be separated from each other in the longitudinal direction of the holding member 2. The panel member 8 biases the actuating members 3a and 3b so that the binding rod is opened and the combined half-split plate 4 is separated.

[0004] An engagement portion 9 for engaging the two half-splits 4 to be combined is formed at the front end of the half-split 4 so that the state in which the staple is formed can be maintained. Yes. This engaging part 9 By moving the half split plate 4 so as to remove, the actuating members 3a and 3b slide in the direction opposite to the longitudinal direction of the holding member 2 and the tip thereof is displaced in such a direction as to pull the panel member 8. . Then, by disengaging the engaging portion 9, the half split plate 4 is opened by the urging force of the panel member 8 to the operating members 3a and 3b, and the bound paper or the like can be removed (see Patent Document 1).

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-255835

Disclosure of the invention

Problems to be solved by the invention

[0006] With such a binding tool, however, the front end of the panel member moves in the opening direction when the half-opener is opened, so that the biasing force to the operating member due to the twisting force of the panel member is weakened. . for that reason

When opening the half-cotton, there was a problem that sufficient opening force could not be obtained.

[0007] Therefore, a main object of the present invention is to provide a binding device capable of obtaining a sufficient opening force when opening a half-cotton.

Means for solving the problem

[0008] The binding device according to claim 1 of the present invention is a long holding member having a holding space, and is brought into contact with each other in the holding space of the holding member and is movable in the longitudinal direction of the holding member. An actuating member having a pair of actuating pieces held on the

A half-breaker which is fixed to the pair of operating pieces and forms a substantially annular binding by being combined with each other;

A gap formed in a part of the butting portion of the pair of working pieces so as to extend in the longitudinal direction of the working member;

A panel member fixing portion formed so as to protrude from each of the pair of operating pieces so as to face the gap portion in the longitudinal direction of the holding member,

A panel member that is housed in the gap portion by locking both ends of the winding portion to the panel member fixing portion; and

Including a support portion formed on the actuating member to support a tip portion extending from both ends of the shore portion of the panel member;

The fixed front end portions that extend at both ends of the shore portion of the panel member are the ends of the respective shore portions. Supported by the support portion of the operating piece facing the operating piece on which the panel member fixing portion to which the portion is locked is formed,

A combination of the half-crackers forms a binding! In the binding device, the distance between the tip portions on both sides of the panel member in the longitudinal direction of the holding member is shorter than the distance between both ends of the shoreline portion.

According to a second aspect of the present invention, in the binding device according to the second aspect of the present invention, the panel member is formed by combining the half-cuts by moving the pair of operating pieces in opposite directions in the longitudinal direction of the holding member. When the scissors are separated, the panel member urges the operating piece in a state where the fixed front ends of the panel members are substantially parallel to each other when the staple is separated, and the half-split is released. The binding device according to claim 1, wherein the binding device is formed as described above.

In the binding device according to claim 3 of the present invention, the panel member fixing portion is protruded toward the center of the gap portion so as to be aligned in a straight line with the linear abutting edge,

The binding device according to claim 1 or 2, wherein the binding device is formed to have a thickness and a length inserted into a through hole formed inside the ridge portion of the panel member.

In the binding tool according to claim 4 of the present invention, the butted portions of the pair of operating pieces are linear butted edges,

The binding device according to claim 1, further comprising an engaging portion that protrudes from the butt edge toward the other operation piece.

In the binding device according to claim _{5 of the} present invention, the engaging portion is:

A base portion protruding the thickness of the actuating member toward the inner surface side of the binding object mounting portion of the holding member;

5. The binding device according to claim 4, further comprising: a pressing portion protruding from a tip of the base portion for preventing displacement of one of the pair of operating pieces.

In the binding device according to claim _{6 of the} present invention, the engaging portion protrudes toward the inner surface side of the binding object mounting portion of the holding member, and the holding member of one of the pair of operating pieces is the holding member. In contact with the inner surface of the object mounting portion

The fixed front end of the panel member is separated from the inner surface side of the binding object mounting portion of the holding member of the actuating member from the portion opposite to the inner surface side of the binding object mounting portion of the holding member of the winding portion. Opposite side 5. The binding device according to claim 4, wherein the binding device is fixed to the support portion of the actuating member so as to extend toward the side. In the binding device according to claim _{7 of the} present invention, the engaging portion has a width located inside the end edge of the operating member even when the pair of operating pieces are moved in the reverse direction. Claim 1

6 is a binding tool according to any of the above.

In the binding device according to claim 8 of the present invention, the engaging portions are formed at an appropriate interval across the portion where the base portion of the binding rod is attached, and a pair of operating pieces are provided between the separated engaging portions. 6. The binding device according to claim ₅ , wherein a gap for inserting a jig is formed at the butting edge.

In the binding device according to claim 9 of the present invention, the support portion is connected to the insertion hole for inserting the front end of the panel member toward the one main surface force of the operating piece toward the other main surface. It is a binding tool described in 8!

The invention's effect

According to the present invention, a long holding member having a holding space, a pair of operating pieces that are brought into contact with each other in the holding space of the holding member and are movably held in the longitudinal direction of the holding member. An operating member that is fixed to the pair of operating pieces and is combined with each other to form a substantially annular binding rod, and the operating member is part of the butting portion of the pair of operating pieces A panel member fixing portion formed so as to protrude from each of the pair of operating pieces so as to face the longitudinal direction of the holding member in the gap portion. The panel member is fixed to the panel member fixing portion so that both ends of the ridge portion are locked and accommodated in the gap portion, and the distal end portion of the panel member extending at both ends of the ridge portion is supported by the actuating member. Including a support formed, The fixed front end portion extending from both ends of the shoreline portion of the panel member is the support portion of the operation piece facing the operation piece on which the panel member fixing portion to which the end portion of each shoreline portion is locked is formed. When the binding rod is formed by combining the half-cut ribs, the distance between the tip portions on both sides of the panel member in the longitudinal direction of the holding member is greater than the distance between both ends of the winding portion. Since it is short, a sufficient opening force can be obtained when opening the half-cotton.

According to the invention of claim 2, the panel member is operated in a pair in the longitudinal direction of the holding member. By moving the pieces in opposite directions, the staples are separated by a combination of half-splits, and when the staples are separated, the panel members are operated with the fixed leading ends of the panel members being substantially parallel to each other. Since the half halves are formed by energizing the pieces, they can be opened smoothly when the half halves are opened.

According to the invention of claim 3, the panel member fixing portion is protruded toward the center of the gap portion so as to be aligned in a straight line with the linear abutting edge, and is formed inside the ridge portion of the panel member. Since it is formed so as to have a thickness and a length to be inserted into the through hole, the panel member can open the half crack with an even opening force.

According to the invention of claim 4, the abutting portion of the pair of operating pieces includes a linear abutting edge and an engaging portion that protrudes from the abutting edge toward the other operating piece. It can slide and swing smoothly at the butt edge.

According to the invention of claim 5, the engaging portion is protruded from the inner surface side of the binding object mounting portion of the holding member, the base portion protruding the thickness of the operating member, and the tip of the base portion. Since the pressing portion for preventing displacement of one of the pair of operating pieces is provided, the pair of operating pieces can smoothly move and swing.

According to the invention of claim 6, the engaging portion protrudes toward the inner surface side of the binding object mounting portion of the holding member, and the binding object of the holding member of one of the pair of operating pieces. The fixed tip of the panel member is in contact with the inner surface side of the mounting portion, and the object to be bound of the holding member of the actuating member is located on the side opposite to the inner surface side of the object mounting portion of the holding member of the winding portion. Since it extends toward the surface opposite to the inner surface side of the mounting portion and is fixed to the support portion of the operating member, the pair of operating pieces can move smoothly and swing without being displaced. it can.

According to the invention of claim 7, since the engaging portion has a width located inside the end edge of the operating member even when the pair of operating pieces are moved in the reverse direction, The contact state of the operating piece is maintained without shifting.

According to the eighth aspect of the present invention, the engaging portion is formed at an appropriate interval across the portion where the base portion of the staple is attached, and the pair of operating pieces protrudes between the separated engaging portions. Since a gap for inserting the jig is formed at the mating edge, the position of the engaging part of one working piece and the position of the engaging part of the other working piece are changed to an optimum engaged state position. To change it can.

According to the invention of claim 9, since the support portion is connected to the insertion hole for inserting the front end of the panel member from the one main surface of the operating piece toward the other main surface, After the tip is inserted into the insertion hole, it can be moved to the adjacent support part side to easily support the support part.

[0010] The above-described object, other objects, features, and advantages of the present invention will become more apparent from the following description of the best mode for carrying out the invention with reference to the drawings.

Brief Description of Drawings

FIG. 1 is a perspective view showing a file in which a binding device according to an embodiment of the present invention is opened.

FIG. 2 is a perspective view showing an example of a binding device according to an embodiment of the present invention.

FIG. 3 is a perspective view of a holding member.

FIG. 4 is a perspective view illustrating an operation member and a panel member.

FIG. 5 is a plan view of a panel member.

FIG. 6 is a side view of the panel member, (A) is a side view of the original state, and (B) is a side view of the state where a force is applied in the circumferential direction of the shoreline portion.

[FIG. 7] (A) is a schematic plan view showing the binding rod and the actuating member in the closed state, and (B) is a right side illustrative view of the second actuating piece.

FIG. 8 is a plan view of the binding device in a closed state.

FIG. 9 is a bottom view of the binding device in a closed state.

FIG. 10 is a cross-sectional view of the binding device in a closed state, and (A) is a cross-sectional view of FIG. 9A—A.

FIG. 9B is a cross-sectional view of FIG. 9B-B.

FIG. 11 is a bottom view of the binding device showing a state in which the binding hook is opened.

FIG. 12 is an illustrative view of a binding device of a binding device showing a state in which the binding device is opened.

FIG. 13 is a plan view of the binding device in an open state.

FIG. 14 is a bottom view of the binding device in an open state.

15 is a cross-sectional view of the binding device in an open state, (A) is a cross-sectional view of FIG. 14A-A, and (B) is a cross-sectional view of FIG. 14B-B. FIG. 16 is a bottom view showing how to attach the operating member.

FIG. 17 is a cross-sectional view taken along the line A-A in FIG.

FIG. 18 is a bottom view showing how to attach the operating member.

[19] FIG. 19 is a cross-sectional view showing how to install the operating piece.

FIG. 20 is a bottom view showing how to install the operating piece.

21] A cross-sectional view showing how to install the operating piece.

FIG. 22 is an illustrative view showing how to attach the panel member.

FIG. 23 is a bottom schematic view showing how to attach the panel member.

FIG. 24 is a bottom schematic view showing how to attach the panel member.

[25] FIG. 25 is a perspective view showing an example of a binding device according to another embodiment.

FIG. 26 is a plan view of a binding device according to another embodiment.

FIG. 27 is a bottom view of a binding device according to another embodiment.

FIG. 28 is a side view of a binding device according to another embodiment.

FIG. 29 is an illustrative view showing one side of an example of a conventional binding tool.

FIG. 30 is an illustrative view showing the other surface side of an example of a conventional binding tool. Explanation of symbols

10, 110 bindings

12, 112 1st binding

12a, 112a Half harm ij 杆

12b, 112b Half split

14, 114 Second binding

14a, 114a, 115a

14b, 114b, 115b

16, 116 Holding member

18, 118 Actuating member

20 Mounting hole

22, 122 Placement part

24a, 24b, retaining wall 1st through hole

Second through hole

, 130 First working piece

a, 130a Butt edge b Outer edge

c Protrusion

d, 30e engagement part

, 132 second working piece

a, 132a Butt edge b Outer edge

c Protrusion

d, 32e engagement part

Gap

a, 38a Crevice

b 38b Panel member fixing part c, 38c Support part

d, 36d

, 140 None

a One fixed tip of the panel member b The other fixed tip of the panel member

, 150 Binding lock

a Convex

b Recess

a Convex

b Recess

a Convex

b concave 58a Convex

58b concave

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a perspective view showing a file using a binding device according to an embodiment of the present invention. FIG. 2 is a perspective view showing an example of a binding device according to an embodiment of the present invention, and FIG. 3 is a perspective view of a holding member. FIG. 4 is a perspective view of the actuating member and the panel member. FIG. 5 is a plan view of the panel member. FIG. 6 is a side view of the panel member, (A) is a side view of the original state, and (B) is a side view of the state in which a force is applied in the circumferential direction of the shoreline portion. FIG. 7 is an illustrative view of the binding rod and the working member, (A) is a plan view illustrative of the binding rod and the working member in a closed state, and (B) is a right side illustrative view of the second working piece. is there . FIG. 8 is a plan view of the binding device in the closed state. FIG. 9 is a bottom view of the binding device in the closed state. FIG. 10 is a cross-sectional view of the binding device in a closed state, (A) is a cross-sectional view of FIG. 9A-A, and (B) is a cross-sectional view of FIG. 9B-B. FIG. 11 is a bottom view of the binding device showing a state in which the binding rod is opened. FIG. 12 is an illustrative view of a binding device showing a state in which the binding device is opened.

[0014] The binding device 10 shown in FIGS. 1 to 12 is fixed to the inner surface of the back cover inside the pair of left and right fold lines formed at the approximate center of the cover A, which is also a cardboard and other relatively hard sheet material. It is done. As a fixing method, a fixing tool such as a bolt, a nut, and a fitting is passed through mounting holes 20 (described in detail later) formed at both ends of the binding tool 10 in the longitudinal direction so as to be integrated with the back cover. There is a way to fix it.

Here, the force explained using bolts and nuts is not limited to this, and, for example, screws, fittings, rivets, and the like may be used as the fixing tool. Further, for example, a method of adhering to the back cover by ultrasonic welding or high frequency welding can be employed.

The binding tool 10 includes a pair of substantially annular metal first binding rods 12 and first binding rods 12, a pair of second binding rods 14, the first binding rods 12 and The holding member 16 has a length capable of providing the second binding rods 14 at intervals, and the first binding rods 12 and the second binding rods 14 are spaced from each other on the surface thereof. The bases of the first binding rod 12 and the second binding rod 14 are fixed, and the first binding rod 12 and the second binding rod 14 are fixed to the holding member 16. As described above, an operating member 18 is provided that is movably fixed inside the holding member 16.

[0016] The holding member 16 has a substantially rectangular shape in a plan view and has a length that allows the first binding rod 12 and the second binding rod 14 to be provided at a predetermined interval. In the vicinity of the mounting hole 20 to be attached, it is formed in a substantially semicircular arc shape in plan view.

The holding member 16 has a substantially semi-circular cross-sectional shape in which the center bulges from the portion where the first binding rod 12 and the second binding rod 14 are fixed toward the inner side from the vicinity of the outer side in the longitudinal direction. The object placing unit 22 is provided, and the inside of the binding object placing unit 22 is provided with a holding space, and the operation member 18 and the like are accommodated in the holding space.

A holding wall 24a and a holding wall 24b for slidably holding the actuating member 18 are provided at both ends of the binding object mounting portion 22 of the holding member 16 so that the force at one end thereof extends to the other end in the longitudinal direction. ing. In this embodiment, in the longitudinal direction of the holding member 16, the holding wall is suspended so as to hang substantially from the vicinity of the outside to the inside of each of the first binding rod 12 and the second binding rod 14. The holding wall 24b and the holding wall 24b are connected in series, and the holding wall 24a and the holding wall 24b are parallel and have substantially the same plate shape.

In the holding space surrounded by the holding wall 24a and the holding wall 24b and the binding object mounting portion 22, an operation member 18 and the like which will be described in detail later are accommodated.

[0017] In the binding object mounting portion 22 of the holding member 16, the first staple 12 and the second staple 14 are arranged at a constant interval (determined by Japanese Industrial Standards! / The first through-hole 26 and the second through-hole 28 are formed in order to allow them to penetrate freely.

The first through-hole 26 and the second through-hole 28 are a half-split 12a and a half-split 12b constituting the first staple 12 and a half-split constituting the second staple 14. Corresponding to 14a and half-split 14b, the holding member 16 is divided into two left and right sides in the width direction, and two holes are formed at regular intervals.

The actuating member 18 includes a pair of a first actuating piece 30 and a second actuating piece 32 that have a substantially rectangular metal plate force in plan view.

In the longitudinal direction, the first working piece 30 and the second working piece 32 are formed with an outer edge 30b and an outer edge 32b that are parallel to the holding wall 24a and the holding wall 24b and slide on the inner surface thereof. The pair of first operating pieces 30 and The abutting edge 30a and the abutting edge 32a for abutting the two actuating pieces 32 are formed on the inner edge, and when they are juxtaposed in the longitudinal direction in the holding space of the holding member 16, respectively, The inner edge is flexibly engaged. That is, the abutting edge 30a and the abutting edge 32a are abutted, and the outer end edge 30b and the outer edge 32b are joined to the inner walls of both the holding wall 24a and the holding wall 24b of the holding member 16.

[0019] Then, the first operating piece 30 and the second operating piece 32 are valley-folded, that is, held when the first operating piece 30 and the second operating piece 32 are not subjected to any external force. The object 16 to be bound is directed in a direction away from the inner surface of the mounting portion 22 (the butt edge 30a and the butt edge 32a are lower than the plane P shown in FIG. 7), or, alternatively, a mountain fold, that is, the holding member 16 Covered

XY

Maintain the valley fold or mountain fold state in the direction approaching the inner surface of the binding material mounting portion 22 (the butt edge 30a and the butt edge 32a are above the plane P in FIG. 7).

XY

As described above, it is provided in the inner space of the holding member 16.

The plane P means that the base of each of the first binding rod 12 and the second binding rod 14 is the first working piece 30.

XY

Left and right axes Υ, Y and front and rear axes X, X passing through the parts (four places) fixed to the second working piece 32

It is a plane including (shown in FIG. 7).

2

[0020] The actuating member 18 has a first binding piece on one surface, that is, on the surface (ie, the upper surface) of the holding member 16 of the first working piece 30 that faces the inner surface of the binding object mounting portion 22. The base of the half split collar 12a that constitutes the second binding rod 14 is fixed at a fixed distance V from the half split collar 12a. It has been.

Further, the other operating piece, that is, the surface of the holding member 16 in the second operating piece 32 (that is, the upper surface) opposite to the binding object mounting portion 22 (ie, the upper surface) is a half split plate 12b constituting the first binding rod 12. The base portion of the half split plate 14b constituting the second binding rod 14 is fixed at a constant distance from the half split plate 12b.

[0021] A pair of operating pieces, that is, the first operating piece 30 and the second operating piece 32 are provided with the through holes formed in the holding member 16, that is, the first through holes 26 and the second through pieces. A protrusion 30c and a protrusion 32c that are passed through the hole 28 are formed. Then, the pair of first operating piece 30 and second operating piece 32 has the protruding portion 30c and the protruding portion 32c passed through the first through hole 26 and the second through hole 28, respectively. Butted butt edge 30a and butt When the binding edge 32a opens the binding, that is, when the first binding 12 and the second binding 14 are opened, it approaches the inner surface of the holding member 16 and the first binding 12 and the second binding. When the collar 14 is closed, it is held by the holding member 16 so as to be able to rotate in the direction to open and close the first binding rod 12 and the second binding rod 14 so that the inner surface force of the holding member 16 is separated. The

[0022] The first working piece 30 and the second working piece 32 are formed with a substantially straight butt edge 30a and a butt edge 32a on the inner side, with which a pair of actuating pieces butt, and the butt edge 30a and the butt edge A substantially straight outer edge 30b and an outer edge 32b, which are substantially parallel to 32a, are formed on the outer side, and the protruding portion 30c is front and rear at a position close to the mounting position of the bases of the half split 12a and the half split 14a. A pair of protrusions 32c are formed in front and rear at positions close to the mounting positions of the bases of the half-split bar 12b and the half-split bar 14b, and open and close the first staple 12 and the second staple 14 The holding member 16 protrudes outward from the holding walls 24a and 24b. The projecting portions 30c and 32c have a length protruding outward from the through hole (the first through hole 26 and the second through hole 28) of the holding member 16, and the operating member 18 is movable in the longitudinal direction of the holding member 16. A tongue having a width.

The actuating piece is a metal or plastic thin plate force, and the actuating piece and the projecting part are integrally formed.

[0023] The first operating piece 30 includes an engaging portion 30d and an engaging portion 30e for engaging a pair of operating pieces, from the butting edge 30a of the first operating piece 30 to the second operating piece 32. The engaging portion 32 d and the engaging portion 32 e that are provided so as to protrude toward the butting edge 32 a of the second working piece and engage the pair of actuating pieces are first actuated from the butting edge 32 a of the second actuating piece 32. It protrudes toward the butting edge 30a of the piece 30.

The engaging portion 30d, the engaging portion 30e, the engaging portion 32d, and the engaging portion 32e extend toward the upper side of the opposing first working piece 30 and second working piece 32, and the butt edge 30a and the butt edge 32a. The first actuating piece 30 and the second actuating piece 32 are formed to oscillate around the center.

[0024] The engaging portion 30d, the engaging portion 30e, the engaging portion 32d, and the engaging portion 32e increase the thickness of the actuating member 18 toward the inner surface side of the binding object mounting portion 22 of the holding member 16. It is formed in a substantially U shape in a plan view including a protruding base portion and a pressing portion protruding from the tip of the base portion. The Then, the holding portion is provided to prevent the first working piece 30 or the second working piece 32 from being removed from one of the first working piece 30 and the second working piece 32 as a pair of working pieces. The engaging portion 30d and the engaging portion 30e and the engaging portion 32d and the engaging portion 32e are protruded toward the inner surface side of the binding object mounting portion 22 of the holding member 16, and a pair of The first working piece 30 and the second working piece 32 that are working pieces, that is, one of the working pieces, that is, the first working piece 30 or the second working piece 32, the holding member 16 of the binding member mounting portion 22 of the first working piece 30 or the second working piece 32. It touches on the inner surface side. The outermost engaging portion 30e and the engaging portion 32e are positioned on the inner side of the edge of the operating member 18 even when the first operating piece 30 and the second operating piece 32 are moved in the opposite directions. It has a width to do.

[0025] The outermost engaging portions 30e and 32e and the inner engaging portions 30d and 32d are appropriately spaced across a portion where the bases of the first binding rod 12 and the second binding rod 14 are attached. The abutting edge 30a of the first operating piece 30 and the second operating piece 32 is formed between the outermost engaging portions 30e and 32e and the inner engaging portions 30d and 32d, which are formed and separated. In addition, a gap 34 for inserting the rod-shaped jig G is formed in the butt edge 32a.

[0026] When the first binding rod 12 and the second binding rod 14 are closed, as shown in FIG. 10, the first operating piece 30 and the second operating piece 32 constituting the operating member 18 The abutting edge 30a and the abutting edge 32a face away from the inner surface of the holding member 16 (inner surface of the binding object mounting portion 22) (that is, in a valley fold state), and the first operating piece 30 is abutted. When the edge 30a is held in a state where the abutting edge 32a of the second working piece 32 is abutted, and when the first staple 12 and the second staple 14 are opened, as shown in FIG. The first actuating piece 30 and the second actuating piece 32 constituting the actuating member 18 approach the inner surface of the holding member 16 (the inner surface of the binding object mounting portion 22) and face in the opposite direction (ie, (Mountain-folded state) is held so that the butting edge 32a of the second working piece 32 is butted. It is fixed in the space inside the timber 16.

[0027] Further, the first operating piece 30 and the second operating piece 32 constituting the operating member 18 are in a direction approaching the inner surface of the binding object mounting portion 22 of the holding member 16, that is, in a mountain-folded state. In this embodiment, the longitudinal direction of the first working piece 30 and the second working piece 32, i.e., the half-split 12a and the half-split 14a fixed to the first working piece 30 and the second working piece 32, Connecting line (X (shown in Figure 7)) and half First working piece 30 in a direction parallel to the line (X (shown in FIG. 7)) connecting the crackers 12b and 14b.

2

And the second working piece 32 are slidably provided so as to be movable.

[0028] The first working piece 30 and the second working piece 32 are formed in the vicinity of the outside of the gap portion 36a and the gap portion 38a and the panel member fixing portion 36b and the panel member fixing portion 38b. A movement restricting portion for restricting movement of the second operating piece 32 in the longitudinal direction is formed.

The movement restricting portion includes a restriction hole 30f and a restriction protrusion 30g formed in the butt edge 30a of the first operating piece 30, and a restriction hole 32f and a restriction protrusion formed in the butt edge 32a of the second operation piece 32. Formed from 32g.

The restriction hole 30f is a U-shaped hole in a plan view that is recessed in the width direction from the butt edge 30a in the vicinity of the outside of the panel member fixing portion 36b, and the restriction protrusion 32g is loosely fitted to the restriction hole 30f. This is a U-shaped protrusion in plan view, where the restriction hole 30f and the restriction protrusion 32g are abutted with each other, and the first operation piece 30 and the second operation piece 32 are in the longitudinal direction in the restriction hole 30f. It is designed to move in different ways.

The restriction hole 32f is a U-shaped hole in a plan view that is recessed in the width direction from the butt edge 32a in the vicinity of the outside of the panel member fixing portion 38b, and the restriction protrusion 30g is loosely fitted to the restriction hole 32f. This is a U-shaped protrusion in plan view, where the restriction hole 32f and the restriction protrusion 30g are abutted with each other, and the first operation piece 30 and the second operation piece 32 are in the longitudinal direction in the restriction hole 32f. It is designed to move in different ways.

A panel member 40 for changing the first binding rod 12 and the second binding rod 14 in the opening / closing direction is provided at the butting edges 30a and 32a of the first operating piece 30 and the second operating piece 32. Yes.

The panel member 40 has a torsional coil panel force, and a fixed tip 42a and a fixed tip 42b that extend in a direction perpendicular to the central axis of the winding 44 are connected to each other at both ends of the winding 44 and the winding 44, In the original state where no torsional moment is generated, the fixed tip 42a and the fixed tip 42b protrude in parallel in the circumferential direction. The fixed distal end portion 42a and the fixed distal end portion 42b are a linear fixed portion 46a and a fixed portion 46b protruding from the winding portion 44, and an intermediate portion connected to the free end side of the fixed portion 46a and the fixed portion 46b. 47a and the intermediate portion 47b, and a locking end portion 48a and a locking end portion 48b connected to the free end side opposite to the fixing portion 46a and the fixing portion 46b of the intermediate portion 47a and the intermediate portion 47b. I have. And the fixed part 46a and the fixed part 4 6b, the intermediate portion 47a, and the intermediate portion 47b are orthogonal to each other, and the intermediate portion 47a, the intermediate portion 47b, the locking end portion 48a, and the locking end portion 48b are orthogonal to each other.

In the original state where no torsional moment is generated, one fixed portion 46a and the other fixed portion 46b, and one locking end 48a and the other locking end 48b are formed in parallel. Yes.

[0030] A gap 36a is formed in the vicinity of the approximate center of the butting edge 30a of the first operating piece 30 constituting the binding tool 10, and the approximate center of the butting edge 32a of the second operating piece 32 is formed. In addition, a gap portion 38a is formed, and a panel member fixing portion 36b for locking the panel member 40 is projected from one end of the gap portion 36a, and at one end of the gap portion 38a. A panel member fixing portion 38b for locking the panel member 40 is provided so as to project.

The panel member fixing portion 36b and the panel member fixing portion 38b are a line X connecting the base portion where the first staple 12 is fixed to the first operating piece 30 or the second operating piece 32 to the second operating piece 32. Binding 14

1

Line X connecting the fixed base

2 Formed away in the extending direction.

The panel member 40 is housed in the gap portion 36a and the gap portion 38a with both ends of the wire portion 44 being locked to the panel member fixing portion 36b and the panel member fixture portion 38b.

Further, in order to support the front end portions extending from both ends of the winding portion 44 of the panel member 40, a support portion 36c and a support portion 38c are formed on the operating member 18.

The fixed tip portion extending from the both ends of the shore portion 44 of the panel member 40, that is, the fixed tip portion 42a and the other fixed tip portion 42b are the above-mentioned ban member to which the end portions of the shore portion 44 are locked. The support portion 36c of the second working piece 32 or the first working piece 30 facing the first working piece 30 or the second working piece 32 in which the fixing portion 36b or the panel member fixing portion 38b is formed. Or it is supported by the support part 38c.

[0032] When the first binding rod 12 and the second binding rod 14 are formed by combining the half-cuts, between the tip portions on both sides of the panel member 40 in the longitudinal direction of the holding member 16 The distance (the distance between the locking end portion 48a of the fixed tip portion 42a and the locking end portion 48b of the fixed tip portion 42b) is shorter than the distance between both ends of the winding portion 44.

Then, by moving the pair of the first operating piece 30 and the second operating piece 32 in the opposite directions in the longitudinal direction of the holding member 16, the combination of the half splits is performed. When the first binding rod 12 and the second binding rod 14 are separated, and when the first binding rod 12 and the second binding rod 14 are separated, the front end portions of the panel members 40 are substantially the same. In a parallel state, the panel member 40 urges the first working piece 30 and the second working piece 32 to halve the half split 12a and half split 12b and half split 14a and half split.杆 14b is released.

[0033] The panel member fixing portion 36b and the panel member fixing portion 38b are projected toward the center of the gap portion 36a and the gap portion 38a so as to be aligned in a straight line with the straight butting edge 30a and the butting edge 32a. The panel member 40 is formed so as to have a thickness and a length to be inserted into a through hole formed inside the winding portion 44.

[0034] The support portion 36c and the support portion 38c are used for inserting the fixed front end portion 42a and the fixed front end portion 42b toward the other main surface of the one main surface force of the first operating piece 30 and the second operating piece 32. Connected to the insertion hole 36d and the insertion hole 38d.

[0035] The one fixed tip 42a and the other fixed tip 42b were originally in a parallel state, but the longitudinal directions of the first working piece 30 and the second working piece 32, that is, the first A line connecting the part fixing the half-split 12a of the working piece 30 and the part fixing the half-split 14a (X (

1 Fig. 7)) and the line (X (shown in Fig. 7)) connecting the part of the second actuating piece 32 that fixes the half-split 12b and the part that fixes the half-split 14b diagonally Crossed in the direction! /

2

The Further, when the panel member 40 is in a closed state, the fixed tip 42a (especially the fixed portion 46a) and the fixed tip 42b (especially the fixed portion 46b) that were originally approaching in parallel are separated from each other. The fixed tip 42a is locked to the second operating piece 32, and the fixed tip 42b is locked to the first operating piece 30 and twisted.

[0036] The fixed tip 42a extends so that the side force of the gap 38a of the second working piece 32 also passes through the lower surface of the panel member fixing portion 38b and reaches the upper surface of the support portion 36c from the lower surface of the first working piece 30. Have been passed.

The fixed tip 42b is bridged from the gap 36a side of the first working piece 30 through the lower surface of the panel member fixing portion 36b so as to reach the upper surface of the support portion 38c from the lower surface of the second working piece 32. Yes.

Accordingly, the fixed tip 42a functions so as to be easily loaded into the first working piece 30 and to rotate and open the first working piece 30 toward the lower surface side with a strong force. The fixed tip 42b Operation It is easy to load on the piece 32 and functions so that the second working piece 32 is rotated and opened with a strong force toward the lower surface side.

[0037] Then, due to the elasticity of the panel member 40, the first operating piece 30 and the second operating piece 32 constituting the operating member 18 are configured so that the first binding rod 12 and the second binding rod 14 are handled by hand. When opening is started, that is, when the first staple 12 and the second staple 14 are removed, the half-split 12a and half-split 12b of the first staple 12 The direction in which the two are separated (half-split 12a is the O direction, half-split 12b is

1

O direction (shown in Fig. 7) and the second binding 14 with the half-split 14a and half-split 14b separated

2

(Half-split 14a is in the O direction, half-split 14b is in the O direction (shown in Fig. 7))

1 2

When the panel member 40 that has been twisted returns to its original state, the half-split 12a and the half-split 12b and the half-split 14a and the half-split 14b are The splits 12a and half 14a act in the O direction, the half splits 12b and half 14b act in the O direction)

3 4

The

In other words, due to the elasticity of the panel member 40, the first operating piece 30 moves in the direction (O direction) to remove the binding hook locking portion 50, and the second operating piece 32 moves the binding hook locking portion 50 away. In the direction to remove (O direction)

1 2 Move.

Then, due to the elasticity of the panel member 40, the first operating piece 30 and the second operating piece 32 constituting the operating member 18 gradually change from the valley folded state to the planar state, and change from the planar state to the mountain folded state.

Then, when the first binding rod 12 and the second binding rod 14 are in an open state, the panel member 40 has a butt edge 30a of the first operating piece 30 and the second operating piece 32. The butt edge 32a acts so as to be held in a mountain-folded state, that is, in a state of approaching the inner surface of the binding object mounting portion 22 of the holding member 16.

[0039] The binding object mounting portion 22 of the holding member 16 is prevented from coming into contact with the inner surface of the binding object mounting portion 22 when the engaging portions 30d and 32e rotate upward. The bulging portion 22a is formed to extend in the longitudinal direction, and the bulging portion is configured not to come into contact with the inner surface of the binding object mounting portion 22 when the engaging portions 30e and 32d rotate upward. The protruding portion 22b is formed extending in the longitudinal direction.

Further, the panel member 40 moves upward toward the binding object mounting portion 22 of the holding member 16. A bulging portion 22c is formed to extend in the longitudinal direction so as not to come into contact with the inner surface of the binding object mounting portion 22! RU

[0040] The first binding rod 12 is composed of a semicircular arc-shaped half split rod 12a and a half split rod 12b so as to be substantially annular, and the second binding rod 14 is substantially annular. Thus, it is composed of a semicircular arc-shaped half split 14a and a half split 14b. Then, the leading ends of the half-split 12a and half-split 12b, and the half-split 14a and half-split 14b so that the paper P can be bound through the binding holes previously punched in the paper P. That is, at the tops of the first binding rod 12 and the second binding rod 14, the binding locking portion 50 is formed.

The half-split 12a and the half-split 12b that constitute the first splicer 12 are the binding locks of the half-split 12a

By engaging 50 and the binding hook locking portion 50 of the half split plate 12b, the ring is engaged in an annular shape. In addition, the half split plate 14a and the half split plate 14b constituting the second binding plate 14 are used to lock the binding plate locking portion 50 of the half split plate 14a and the binding plate locking portion 50 of the half split plate 14b. By doing so, it is engaged in an annular shape.

[0041] The first binding rod 12 and the second binding rod 14 are a left-right axis passing through portions (four locations) where the respective base portions are fixed to the first working piece 30 and the second working piece 32. ,, Y and longitudinal axes X, X (Fig. 7

(1 2 1 2) The first working piece 30

It is erected from XY and the second operating piece 32. The circle formed by the axis Z (shown in FIG. 7) of the first binding 12

1

The shape surface and the circular surface formed by the axis Z (shown in FIG. 7) of the second binding rod 14 are parallel and

2

A plane P through which the first staple 12 and the second staple 14 pass through the part where the first operating piece 30 and the second operating piece 32 are fixed.

It is configured to be perpendicular to XY.

[0042] The first binding rod 12 and the second binding rod 14 are configured to be able to remove the binding binding portion 50 with a finger in the same direction.

A convex portion 52a at the leading end constituting the binding hook locking portion 50 formed at the tip of the half split rod 12a constituting the first binding rod 12, a concave portion 52b following the convex portion 52a, and a half split rod 12b The convex portion 54a at the front end constituting the binding hook locking portion 50 and the concave portion 54b following the convex portion 54a at the front end protrude in the opposite direction so as to be engaged when the first binding rod 12 is closed or A dent is formed. The convex portion 52a and the convex portion 54a are each provided with an inclined edge inward from the tip, and formed so that the first binding rod 12 and the second binding rod 14 can be opened and closed while sliding. It has been done. Further, the convex portion 56a constituting the binding rod locking portion 50 formed at the tip of the half split rod 14a constituting the second binding rod 14, the concave portion 56b following the convex portion 56a, and the half split rod 14b The convex portion 58a at the front end constituting the binding rod locking portion 50 and the concave portion 58b following the convex portion 58a at the front end protrude in the opposite direction so as to be engaged when the second binding rod 14 is closed. Or a dent is formed. Further, the convex part 52a constituting the binding hook locking part 50 of the half split collar 12a and the convex part 56a constituting the binding hook locking part 50 of the half split hook 14a are provided so as to protrude in the same direction. .

Further, the concave portion 54b constituting the binding hook locking portion 50 of the half split collar 12b and the concave portion 58b constituting the binding hook locking portion 50 of the half split collar 14b are formed to be recessed in the same direction.

[0043] Therefore, the binding lock 50 of the first binding 12 can be removed by twisting the top of the first binding 12 with a finger, and the binding of the first binding 12 is locked. When the part 50 is removed with a finger, the first working piece 30 and the second working piece 32 cause the panel member 40 to return to the original state, that is, one fixed tip 42a and the other fixed tip. The first working piece 30 and the second working piece 32 move in opposite directions by applying a force so that the portion 42b is parallel to the part 42b. That is, the convex portion 56a of the half split plate 14a and the convex portion 58a of the half split plate 14b constituting the second binding rod 14 act in a direction to separate them, and the convex portion of the half split plate 12a of the first staple 12 Acting in the direction to separate the convex portion 54a of the part 52a and the half split 12b, and separating the convex part 56a of the half split 14a and the convex part 58a of the half split 14b constituting the second binding rod 14. Acts as follows.

[0044] Thus, in this embodiment, by twisting the tops of the first binding rod 12 and the second binding rod 14 with a finger, the half binding rod 12a and the half splitting of the first binding rod 12 are performed. The binding hook locking portion 50 of the collar 12b and the binding hook locking portion 50 of the second split collar 14 and the half split collar 14a and the half split collar 14b can be removed.

In addition, the first staple 12 half-split 12a and half-split 12b staples 50 and the second staple 14 half-split 14a and half-split 14b staples 50 When the engagement is released, the force that the one fixed tip 42a and the other fixed tip 42b approach in the circumferential direction acts, so that the butt edge 30a of the first working piece 30 and the second The butt edge 32 a of the operating piece 32 is in a mountain folded state.

Next, a method for loading the actuating member 18 into the holding space of the holding member 16 will be described mainly with reference to FIGS. First, the first working piece 30 is loaded into the holding member 16, and then the second working piece 32 is loaded into the holding member 16. At this time, the projecting portion 30c passes through the first through hole 26 (one of the pair of left and right through holes 26, which is the right through hole 26 in plan view), and the projecting portion 32c is the second through hole 26. Passes through the through hole 28 (the right through hole 28 in plan view which is one through hole 28 of the pair of left and right through holes 28), and engages 30d and 30e and engages 32d and engages. 32e is positioned below the first working piece 30 and the second working piece 32, that is, on the opposite side of the holding member 16 from the object mounting portion 22.

Therefore, the rod-shaped jig G is pushed between the gap 34 of the first working piece 30 and the gap 34 of the second working piece 32 so that the gap between the first working piece 30 and the second working piece 32 is opened. Thus, the engaging portion 30d, the engaging portion 30e, the engaging portion 32d, and the engaging portion 32e are placed on the upper side of the first operating piece 30 and the second operating piece 32, that is, on the object to be bound of the holding member 16. Insert it on the part 22 side, then remove the rod-shaped jig G and abut the butt edge 30a and the butt edge 32a.

Next, a method for loading the panel member 40 into the operating member 18 will be described with reference to FIGS.

The side where the fixed distal end portion 42a and the fixed distal end portion 42b are extended is positioned on the lower side, that is, on the side opposite to the binding object mounting portion 22 of the holding member 16, and the panel is inserted into the through hole of the winding portion 44. The member fixing portion 36b and the panel member fixing portion 38b are inserted, and the panel member 40 is loaded between the gap portion 36a and the gap portion 38a.

Extend the L-shaped support part (intermediate part 47a and locking end part 48a) of the fixed tip 42a toward the first working piece 30 and insert it into the insertion hole 36d of the first working piece 30. Shift it to the support 36c.

In addition, the L-shaped support part (intermediate part 47b and locking end part 48b) of the fixed tip part 42b is extended to the second working piece 32 side and inserted into the insertion hole 38d of the second working piece 32. Shift to the support 38c.

In order to attach the binding tool 10 to the cover A, the lower end edges of the holding wall 24a and the holding wall 24b may be joined and attached to the mounting holes 20 and 20 with bolts and nuts.

In the above embodiment, the two-hole type binding device has been described as the first binding rod 12 and the second binding rod 14, but a multi-hole type with an increased number of binding rods, for example, three holes , 4 holes , 20 holes, 26 holes, 30 holes and so on.

Next, another embodiment useful for the present invention will be described with reference to FIGS. 25 to 28.

The binding device 110 of this embodiment has substantially the same configuration as that of the binding device 10 of the above-described embodiment. Mainly, the configuration of the holding member and the configuration of the operation member associated with the increase in the number of binding rods. Since the structure of the panel member is different, it will be described below with a focus on them.

[0049] The binding tool 110 includes a pair of substantially annular metal first binding rods 112, a second binding rod 113, a third binding rod 114, a fourth binding rod 115, and the first The holding member 116 having a length capable of providing the first binding rod 112 and the fourth binding rod 1 15 at intervals, and the first binding rod 112 and the fourth binding rod 115 on the surface thereof. The bases are fixed at intervals, and the first binding 112, the second binding 113, the third binding 114, and the fourth binding 115 are fixed to the holding member 116. And an actuating member 118 movably fixed inside the holding member 116.

[0050] Because the binding is a four-hole type, the four bindings of the first binding 112, the second binding 113, the third binding 114, and the fourth binding 115 are also included. Become. The first binding 112 includes a half split 112a and a half split 112b, the second binding 113 includes a half split 113a and a half split 113b, and the third binding 114 includes a half split. The fourth binding rod 115 is provided with a half split plate 115a and a half split plate 115b.

[0051] The holding member 116 has a length that allows the first binding rod 112, the second binding rod 113, the third binding rod 114, and the fourth binding rod 115 to be provided at predetermined intervals. The plane is substantially rectangular, and both ends, that is, in the vicinity of the mounting holes 120 attached to the cover A, are formed in a plane semicircular arc shape.

The holding member 116 includes a holding space inside the binding object mounting portion 122, and is configured to accommodate the operation member 118 and the like in the space.

At both ends of the binding object mounting portion 122 of the holding member 116, holding walls for slidably holding the actuating member 118 are provided with the one end force and the other end extending substantially in the longitudinal direction. In this embodiment, in the longitudinal direction of the holding member 116, the first binding rod 112, the second binding rod 113, the third binding rod 114, and the fourth binding rod 115 are located in the vicinity of the outside. The holding wall 124a and the holding wall 124b are connected so as to hang down substantially over the entire portion, and the holding wall 124a and the holding wall 124b are parallel and have substantially the same plate shape. The holding member 124 and the like, which will be described in detail later, are accommodated in a holding space surrounded by the holding wall 124a, the holding wall 124b, and the object mounting portion 122.

[0052] The first staple 112 and the second staple 113 are placed on the binding object mounting portion 122 of the holding member 116 at a constant interval (determined by a Japanese Industrial Standard or the like). The first through-hole 126 and the second through-hole 127 are formed for loosening, and the third binding rod 114 and the fourth binding rod 115 are fixed to each other. A third through-hole 128 and a fourth through-hole 129 are respectively drilled so as to loosen with a certain interval (determined by Japanese Industrial Standards! /, A certain length).

The first through-hole 126 and the second through-hole 127, the third through-hole 128 and the fourth through-hole 129 correspond to the half-cuts constituting the respective binding rods, and the holding member 116 V in the width direction, divided into left and right, with a fixed interval, and two holes are drilled.

[0053] The operating piece constituting the operating member 118 has two pairs of operating pieces unlike the operating piece of the binding device of the above embodiment.

The first operating piece 130 to which the bases of the half split 112a and the half split 113a are fixed and the second operating piece 131 to which the bases of the half split 112b and the half split 113b are fixed are The first working piece 30 and the second working piece 32 of the form are formed substantially the same. Further, the third working piece 132 to which the bases of the half-split 114a and the half-split 115a are fixed and the fourth working piece 133 to which the bases of the half-split 114b and the half-split 115b are fixed The first working piece 30 and the second working piece 32 of the embodiment are formed substantially the same.

[0054] In the binding device of the above-described embodiment, the panel member corresponds to the pair of operating pieces, and the force with which the panel member is loaded is two pairs of the operating pieces in the binding device of this embodiment. Correspondingly, a total of two panel members 140 and 141 are loaded, one each.

[0055] According to the embodiment, since the pair of operating pieces are formed with the protruding portions that are passed through the through holes formed in the holding member, the base of the staple is fixed to the operating pieces, for example, by crimping. However, the area can be increased to reduce the stress applied to the operating piece. Therefore, the strength of the entire operating piece can be increased. In addition, since the through hole through which the protruding portion of the operating piece passes and the through hole through which the binding rod passes can be made common, the structure of the holding member can be simplified and the manufacturing cost can be reduced.

Claims

The scope of the claims

[1] a long holding member having a holding space;

An actuating member having a pair of actuating pieces that are held in a holding space of the holding member and are movably held in the longitudinal direction of the holding member;

The fixed front end portion extending at both ends of the shoreline portion of the panel member is the support portion of the operation piece facing the operation piece on which the panel member fixing portion to which the end portion of each shoreline portion is locked is formed. Supported by

A combination of the half-crackers forms a binding! The binding tool according to claim 1, wherein a distance between tip portions on both sides of the panel member in a longitudinal direction of the holding member is shorter than a distance between both ends of the heel portion.

[2] The panel member is separated from the binding by the combination of the half splits by moving a pair of the operating pieces in opposite directions in the longitudinal direction of the holding member. 2. The panel member according to claim 1, wherein the panel member is configured to urge the operating piece so that the half split plate is opened in a state in which the fixed front end portions of the panel member are substantially parallel to each other. The described binding tool.

[3] The panel member fixing part is projected toward the center of the gap so as to be aligned with the straight abutting edge.

It has a thickness and length to be inserted into a through hole formed inside the ridge portion of the panel member. The binding device according to claim 1 or 2, wherein the binding device is formed as follows.

[4] The butting part of the pair of working pieces is

A straight butt edge,

The binding device according to claim 1, further comprising: an engaging portion that protrudes from the butt edge toward the other operation piece.

[5] The engaging part is

5. The binding device according to claim 4, further comprising: a pressing portion protruding from a tip of the base portion to prevent displacement of one of the pair of operating pieces.

[6] The engaging portion protrudes toward the inner surface side of the binding object mounting portion of the holding member, and the inner surface of the binding material mounting portion of the holding member of one of the working pieces of the pair of operating pieces. The fixed tip of the panel member is in contact with the side of the binding member mounting portion of the actuating member holding member from the inner surface side of the binding member mounting portion of the holding member of the winding portion. The binding device according to claim 4, wherein the binding device extends toward a surface opposite to the inner surface side and is fixed to the support portion of the actuating member.

[7] The engaging portion has a width that is located on the inner side of the edge of the operating member even when the pair of operating pieces are moved in the opposite direction. The described binding tool.

[8] The engaging portion is formed at an appropriate interval across the portion where the base of the binding rod is attached.

6. The binding device according to claim 5, wherein a gap for inserting a jig is formed at a butt edge of the pair of operating pieces between the separated engaging portions.

[9] The binding according to any one of claims 1 to 8, wherein the support portion is connected to a insertion hole for inserting the tip of the panel member from one main surface of the operating piece toward the other main surface. Ingredients.