WO2005035265A1 - Binder and file - Google Patents

Abstract

A binder has a pair of first binding members and a pair of second binding members corresponding to the first binding members. When each of the fist binding members and corresponding each of the second binding members are relatively turned, tip portions of these first and second binding members are closed or opened, realizing a state where papers are bound or a state where papers are released from binding. The binder has opening means for applying a force in a direction where the tip portions of the first and second binding members are opened, and has an operation lever for relatively turning the first and second binding members against the opening means, and for retaining the tip portions at a closed position. The binder is characterized in that connection portions are provided in the tip portions The connection portions are connected to each other through temporary elastic deformation of at least either of the first binding members and the second binding members, and inhibit the opening operation of the tip portions by strengthening the connection by means of force applied by the opening means.

Description

 W

1

 Specification

 Binding tools and files

Technical field

 The present invention relates to a binding device and a file provided with an operation lever suitably used in an office or the like.

Background art

0 For example, as this kind of binding tool, as shown in FIG. 15, a pair of first binding members a, a and a pair of first binding members a, The base e is provided with a second binding member b, b that forms a pair corresponding to a, and a pair of the first binding member a and the second binding member b that correspond to each other. Through the rotation operation, the end portions a1 and b1 are closed or opened, and the binding state or binding to the paper sheet is performed. It has been known that it is configured to realize the release state. The binding device A includes an opening means for applying a force in a direction in which the distal end portions a1, b1 of the first and second binding members a, b are opened, and an opening means. An operation lever that causes the first and second binding members a and b to rotate relative to each other against the release means c and holds the distal end portions a1 and b1 between them at the closed position. d and are provided.

This operation is performed by operating the operation lever d downward so as to close the distal end portions a1 and b1 of the first and second binding members a and b. As a result, the binding members a and b close the gaps between the distal end portions a1 and b1 against the force applied by the opening / closing means C. Perform relative rotation. Then, the front end portions al and bl of the first and second binding members a and b abut against each other to close the space therebetween, and the first and second binding members a and b close under the holding force by the operation lever d. 1, the binding state of the paper sheets by the second binding members a and b is maintained.

 On the other hand, when the operating lever d is operated upward to release the holding force that holds the distal end portions a1, b1 of the first and second binding members a, b at the closed position. Since a force in the direction of opening between the tips a 1 and b 1 is applied to the two binding members a and b by the opening means c, the two binding members a and b are b moves relative to the direction in which the tips a 1 and b 1 are released, and shifts to the binding release state.

 The tips al and bl of the first and second binding members a and b are concave and convex so that they can be smoothly fitted in the opening and closing directions as shown in FIG. 16 (a). The binding members a and b form an arch in a closed state when they are closed.

However, if an unexpected external force acts on the first and second binding members a and b due to the drop of the binding device A and other causes, the two binding members a and b Since the heads al and bl of the robots only rotate smoothly in the closing direction and hit with concaves and convexes, the operation lever d is closed. Even if it is in the position, as shown in Fig. (B), It is easy to temporarily form a gap between the tips a 1 and b 1 due to sexual deformation, and after the concaves and convexes come off, in the state shown in FIG. It may be reclosed incompletely. For this reason, in addition to the paper sheets being pinched between the leading end portions a1 and b1, the paper sheets falling off from the binding device A, and the operation lever d When opening the binding members a and b that were stuck in the emergency state, the opening / closing operation of the operation lever d could be interrupted. However, even when the binding members a and b are in an indeterminate state, they may be deformed plastically, which may cause a failure to impair a normal closing function.

 In particular, the first and second binding members a and b are in a closed state in a closed state, but the binding region is substantially from the base e. The rising portion of the second binding member b which rises substantially vertically, and the top T allows paper sheets to pass through at the time of browsing or adding / removing operations. Just in the area of The distance from the base end portion a2 of the binding member a to the front end portion a1 of the binding member a becomes unnecessarily large only for the top T. When an external force acts on the distal end portions a 1 and b 1, elastic deformation is apt to occur, and the above-mentioned disadvantages tend to appear more remarkably.

In addition, when the binding device A is attached to the cover B to form the file F, as shown in FIG. A space D is generated between the cover B1 and the back cover B2, resulting in a decrease in storage efficiency and a failure. Unnecessary increase in the external dimensions of the file F is caused.

 The present invention has been made in view of such a problem, and in a state where the first and second binding members are held in the closed position by the operation lever. Even if unexpected external force is applied to the periphery of the leading edge, the paper sheets can be prevented from being pinched or dropped, and the proper closing function of the operation lever can be secured. Its primary purpose is to provide structural fasteners and files. Disclosure of the invention

 The present invention has taken the following measures to achieve such a purpose.

That is, the binding device of the present invention includes a pair of first binding members and a pair of second binding members corresponding to the first binding members, and Each of the first binding members and the second binding members is closed or opened between the leading ends through the relative rotational movement of the corresponding binding members. It is configured so as to realize the binding state or the binding release state for the leaves, and the leading end of the first and second binding members. An opening means for applying a force in a direction in which the gap is opened, and the first and second binding members are rotated relative to each other by opposing the opening means. And an operation lever for maintaining the closed end position between the front end portions of the two. Then, at least one of the first binding member and the second binding member undergoes a temporary elastic deformation between the front end portions. In this case, an engaging portion is provided which protrudes the engagement by the force applied from the opening / closing means and inhibits the opening / releasing operation between the front end portions. It is characterized by this.

 When the operating lever is operated in a direction to close the distal end portion of the first and second binding members, the two binding members are opposed to the force applied by the opening / closing means. Relative rotation is performed in the direction to close the gap between the front ends. Then, at least one of the binding members is engaged between the leading ends through a temporary elastic deformation of one of the binding members, and the operating lever is engaged. Thus, the binding state of the sheets by the first and second binding members can be obtained based on the holding force. The engagement portion deepens the engagement with the force applied from the release means, and it is necessary to temporarily apply elastic deformation to the binding member. The relationship is not released. For this reason, an unexpected external force acts on the first and second binding members due to the dropping of the binding device or other factors, thereby causing the first and second binding members to operate. Even if the end of the member attempts to deform elastically in the direction in which it opens, the deformation operation, and eventually the situation of re-closing as soon as possible, is effectively prevented. .

On the other hand, the operating lever is operated to release the holding force that holds the first and second binding members in the closed position between the leading ends of the first and second binding members, and then the two binding members are released. If temporary elastic deformation is artificially applied between the distal ends of the joints, the engagement of the engaging portions is released. Since a force in the direction in which the leading ends are released is applied to the both binding members by the release means, both the binding members are released. The binding member rotates relative to the opening direction of the leading end to obtain a binding release state.

 According to the present invention, even if an unexpected external force is applied to the first and second binding members due to dropping or other factors, the leading end portions of the two binding members are not affected. It is forbidden that the space is elastically deformed in the release direction, effectively preventing paper sheets from being pinched or falling off, and operation of the operation lever to be inferior. You can cancel it. Therefore, it is robust against falling, accidental collision of articles, etc., and it is possible to effectively improve the reliability and durability of the binding device. Become .

 The engaging portion is engaged by the first binding member or the second binding member being temporarily elastically deformed in a direction in which the first binding member and the second binding member are close to each other. I want something.

 According to this, the elastic deformation in the opposite direction can be easily provided by performing a pinching operation with a fingertip or the like. Therefore, the binding state by the first and second binding members can be easily released with one hand.

Alternatively, the engagement portion may be temporarily deformed in a direction in which the first binding members or the second binding members are separated from each other temporarily. I would also like something involved. According to this, elastic deformation in the direction away from each other can be easily imparted by performing an operation of separating with both hands. Therefore, even if the first and second binding members are provided with relatively high rigidity, the binding state is maintained. Can be easily released using both hands. As a specific embodiment of the engaging portion, an inward hook-shaped portion provided on one of the first binding member and the second binding member and the other provided on the other. One example is a structure that engages with a hook-shaped outward facing girder.

 In this way, the engagement portion that engages more smoothly by the closing operation and deepens the engagement against the force in the opening and closing direction can be easily machined. Therefore, it can be realized precisely.

 Further, in order to further enhance the operation and effect of the present invention, the first binding member and the second binding member are erected by attaching the base end to the base. In the closed state, at least one of the first binding member and the second binding member on the rising end side is substantially similar to the base. It is advisable to have a parallel running top.

 Since at least one of the first binding member and the second binding member has an apex extending substantially parallel to the base on at least one of the rising ends thereof, a top portion is provided. However, the distance from the base end to the distal end is smaller than that of an arched structure, although the amount of binding is substantially the same. For this reason, the binding member becomes difficult to be elastically deformed, and the situation where the end portions are easily opened can be more effectively prevented. .

When a file is constructed by attaching the above-mentioned binding device to the cover, the effect obtained by the file is obtained. The effect is basically the same as that described above for the binding device.

 In particular, when a top is provided that extends substantially parallel to the base, the dead space created between the front and back covers is smaller than that of an arched one. In other words, it is possible to effectively prevent the storage efficiency from being reduced and the unnecessary external dimensions from being increased. Brief description of the drawing

FIG. 1 is a schematic perspective view of a main part showing a file provided with a binding device according to a first embodiment of the present invention. FIG. 2 is an enlarged front view showing the binding device according to the embodiment. FIG. 3 is an enlarged left side view showing the binding device according to the embodiment. FIG. 4 is an enlarged plan view showing the binding device according to the embodiment. FIG. 5 is an enlarged right side view showing the binding device in the same embodiment. FIG. 6 is a diagram for explaining the operation of the embodiment. FIG. 7 is a diagram for explaining the handling of the embodiment. FIG. 8 is an explanatory diagram of the operation of the embodiment. FIG. 9 is a diagram for explaining the operation of the embodiment. FIG. 10 is a diagram showing a modified example of the same embodiment. FIG. 11 is a diagram showing another modified example of the embodiment. FIG. 12 is an enlarged front view showing the binding device according to the second embodiment of the present invention. FIG. 13 is an enlarged plan view showing the binding device according to the embodiment. Fig. 14 shows the same embodiment FIG. FIG. 15 is an enlarged perspective view of a main part showing a file provided with a conventional binding device. FIG. 16 is an explanatory diagram for explaining a conventional defect. FIG. 17 is an explanatory diagram for explaining a conventional defect. Best form to carry out the invention

 <First Embodiment>

 FIG. 1 shows a schematic perspective view of a main part of a file 2 provided with a binding device 1, and FIGS. 2 to 5 show enlarged front views of the binding device 1 and enlarged views. A left side view, an enlarged plan view, and an enlarged right side view are shown. The file 2 is composed of a cover body 3 having a front cover 31 and a back cover 3 2 which are connected via a back cover 3 3, and an inner surface of the back cover 3 2. And a binding device 1 attached to the device.

The binding device 1 includes a pair of first binding members 11 1 and 11 and a pair of second binding members 12 and 1 corresponding to the first binding members 11 1 and 11. 2 are provided on the base 10 and the corresponding first binding member 11 and the second binding member 12 are rotated relative to each other, as shown in FIG. 2 and the like. As shown in the figure, the structure is such that the tip 11a, 12a is closed or opened. Further, the binding device 1 is a releasing means for applying a force in a direction in which the distal end portions 11a and 12a of the first and second binding members 11 and 12 are released. 4 (see FIG. 4 etc.) and the first and second binding members 11 against the release means 4, An operation lever 5 is provided which makes the relative rotation of 12 and keeps the tip portions 11a and 12a in the closed / closed position.

 More specifically, the first binding member 11 and the second binding member 12 form an arched closed loop in a closed state. As shown in FIG. 2 and the like, the first binding member 11 has an upright area 1 lx that rises substantially vertically from the base 10, and a first 2 Binding member 1 It is composed of a bay bending area lly that gradually curves toward the side 2. In addition, the second binding member 12 is, in the closed state, raised from the base 10 to a position slightly higher than the raised region 11X. 2X, and a bending area 12y which bends from the tip side of the upright area 12X toward the first binding member 11 side. . The closing position by the distal ends 11a and 12a is a position displaced from the top T of the arch toward the second binding member 12 side.

As shown in Fig. 1 and Fig. 4, etc., the connection between the proximal ends 11b, 11b of the paired first binding members 11, 11 is made by a connecting portion 13. The rotating shafts 13a constituting both ends of the connecting portion 13 are rotatable to the bearings 10a mounted on the base 10. It is attached to Noh. On the other hand, the pair of the second binding members 12 and 12 are attached to the base 10 with the base end 12b fixed to the base 10 respectively. Then, the first binding member 11 is rotated. By rotating the shaft 13a around the fulcrum, the tip end 11a and 12a of the first binding member 11 and the second binding member 12 are closed or opened, and the paper sheet is opened. A binding state or a binding release state for a class is realized.

 As shown in FIG. 4 and the like, the release means 4 is configured to bend a part of the connecting portion 13 of the first binding member 11 in a crank shape. Then, at a position displaced from the rotating shaft portion 13a, a crank shaft 41 that is parallel to the rotating shaft portion 13a is provided, and a base is provided. The base panel 42 is fixed to the base 10 with the base edge 42 a side fixed, and the leading edge 42 b side is connected to the crank shaft 41 from below. It is a sign. Then, due to the action of the platenette 42, the base end 1 1b of the first binding member 11 near the closed position and the close position is connected to the connecting portion 13 via the connecting portion 13. Then, it is configured to give an elastic force to be pressed in the release direction.

As shown in FIG. 3 and the like, the operation lever 5 is provided with a rotating arm 51 and a transmitting portion 52 which is integrally continuous with the rotating arm 51 in a direction substantially orthogonal to the rotating arm 51. And an inverted L-shaped operating end portion 53 that is set up on the front end side of the transmitting portion 52. Then, the base end of the rotating arm 51 is connected to the base via an arm spindle 51 a parallel to the opening and closing directions of the first and second binding members 11 and 12. Rotatably mounted on a support 10 b that is standing upright on the base 10, and a roller 54 is installed at the intersection of the rotating arm 51 and the transmission part 52. , Through a roller support shaft 54 a substantially parallel to the base 10. It is installed. The operating end 53 is in the open position, and is located at a position where the operating end 53 jumps up in the oblique direction as indicated by the image line in FIGS. 2 and 3, and the roller 54 is located at the open end. The connecting portion 13 is in rolling contact with a position displaced from the center of the crank shaft 41 of the connecting portion 13. When the operating end 53 is pushed down from this position, the rotating arm 51 rotates around the arm support shaft 5 la, and the roller 54 moves on the connecting portion 13. As it rolls, it gradually moves toward the center of the connecting portion 13, and pushes the connecting portion 13 downward against the plate spring 42. During this time, the elasticity is accumulated on the plate springs 42, and the first binding member 11 rotates while the leading end 11a becomes the leading end of the second binding member 12. When approaching the part 12a, the end parts 11a and 12a are finally closed. That is, the mouth 54 moves slightly below the lowest point from the position indicated by the imaginary line in FIG. 3 to the position indicated by the solid line in FIG. Even when the operating force to the operating end portion 53 is removed, the rotating arm 51 becomes substantially orthogonal to the crank shaft 41 of the connecting portion 13, and Due to the operation of the glue, the connecting portion 13 holds the pushed-down state, and the binding members 11 and 12 keep the closed state. The panel panel 42 receives the pushing-down force of the connecting portion 13.

From this position, when the operation to jump up the operation lever 5 is performed, the roller 5 is pushed onto the connecting portion 13 pressed against the platenette 42. 4 has moved in the opposite direction to the above, and after the roller 54 has passed the lowest point, the first binding member 11 The front end 11a of the second binding member 12 moves away from the front end 12a of the second binding member 12 while rotating in the opposite direction. However, in this embodiment, the distal end portions 11a and 12a are not opened only by the presence of the engaging portion 6 described later. In FIG. 3, when the operation lever 5 shifts from the state shown by the solid line to the state shown by the broken line, the operation lever 5 and the base 10 or its base are moved. A stop mechanism (not shown) is provided between the camera and the vicinity to stop the operation lever 5 at a predetermined jump position.

 In such a binding device 1, in the present embodiment, the first binding member 11 and the second binding member 12 are provided between the front end portions 11 a and 12 a. Engagement occurs through a temporary elastic deformation, and the engagement is deepened by the force applied from the opening / closing means 4 so that the distal ends 11 a and 12 a An engaging part 6 is provided to prohibit the opening and releasing operation between them.

As shown in FIGS. 5 and 6 (a) to (c), the engaging portion 6 cuts a part of the outer side of the distal end 11 a of the first binding member 11. Hook-shaped portion 61 in the shape of an outside, and an inward hook-shaped portion in the shape of a part of the inside of the distal end 12 a of the second binding member 12 cut away. 6 2 As shown in FIGS. 6 (b) and 6 (c), the outward hook-like portion 61 and the inward hook-like portion 62 are located at positions close to the tips. 6a, and valley-shaped engaging portions 61b and 62b adjacent to the base end side thereof, and the space between them is provided. The undercut portions 61 ax and 62 ax are formed. The chevron-shaped engaging portion 61a (62a) of one hook-shaped portion 61 (62) and the valley-shaped engaging portion 62b (61b) of the other hook-shaped portion 62 (61) ) Is a convex-concave relationship, and the mountain-shaped engaging portions 61a and 62a and the valley-shaped engaging portions 61b and 62b have the same relationship. Same shape is given.

 When the distal ends 11a and 12a of the two binding members 11 and 12 approach each other as shown in FIGS. 3 (c) and 3 (b), the first binding members 11 and 1 are closed. (1) The members are temporarily elastically deformed in a direction toward each other, and the second binding members 12 and 12 are temporarily elastically deformed in a direction in which the members are separated from each other. Then, while the chevron-shaped engaging portions 61a and 62a rub against each other, the engagement is deepened. Then, when the mountain-shaped engaging portion 61a (62a) falls into the valley-shaped engaging portion 62b (61b), as shown in FIG. An engagement portion 6 is formed on the first binding member 11 and the second binding member 12 via the engagement portion 6, and apparently, one continuous closed loop is formed. The striatum forms a loop. At this time, the first binding member 11 and the second binding member 12 return from the elastically deformed state to the state before the deformation.

In this embodiment, the closing state between the distal end portions 11a and 12a of the first binding member 11 and the second binding member 12 is pushed in the closing direction. It is not maintained by the closing means, but by the release means 4 which is pressed in the release direction. Are maintained. The reason is that the opening and closing work can be performed smoothly with a light force without requiring excessive operating force, and the first binding member 11 and the first binding member 11 can be opened and closed smoothly.

2 When closing the binding member 1 2, it will not suddenly move and generate noise or cause fear. In addition, it is not necessary to provide a separate member as a release means, so that the number of parts can be reduced.

 As shown in FIG. 1, the front cover 31 of the cover body 3 has an opening formed when the first and second binding members 11 and 12 are closed. A slit 31a is provided at a corresponding position, and the top T of the gang can be inserted into the slit 31a. In addition, a protrusion 31a1 relating to the inner periphery of the arm at the insertion position is provided on the opening edge of the slit 31a. This is to keep the cover 3 closed.

As described above, the binding device 1 of the present embodiment and the file 2 to which the binding device 1 is attached include the distal end portions 11a of the first and second binding members 11 and 12. When the operation lever 5 is operated in a direction to close the space between the first and second binding members 12 a, the two binding members 11, 1 2 against the force applied by the release means 4. Performs relative rotation in a direction to close the front end portions 11a and 12a. Then, after the temporary elastic deformation of both the binding members 11 and 12, the engaging portion 6 provided between the distal ends 11 a and 12 a is engaged, and the operation lever 15 is operated. Under the holding power of As shown by the solid lines in FIGS. 1 to 4, the binding state of the sheets by the first and second binding members 11 and 12 can be obtained.

The engagement portion 6 is a force applied from the release means 4 in the direction indicated by the arrow in FIG. 6 (a), and the engagement portion 6 1a (62a) and the valley shape are applied. This is to deepen the engagement with the engaging portion 62b (61b), and to temporarily deform as shown by an arrow in the same figure (b). Unless is applied to the first binding member 1 or the second binding member 12, the engagement is not released. This is because when the binding members 11 and 12 are to be released along their axes, the mountain-shaped engagement shown in FIGS. 6 (a) and (c) etc. This is because the undercut portions 61 ax and 62 aX of the roots of the parts 61 a and 62 a have a relationship in which they are engaged with each other. Therefore, an unexpected external force acts on the second] second binding members 11 and 12 due to the drop of the binding device 1 and other factors, thereby causing the first and second binding members 11 and 12 to act. Even if the distal ends 1a and 12a of the binding members 11 and 12 are to be elastically deformed in a direction in which they are released, the deforming operation and ultimately the elastic deformation will occur. This can effectively prevent the situation of re-closure. For example, when the front cover 31 and the back cover 32 of the cover body 3 are open and the file 2 drops from the top T side. The top T receives a reaction force from the floor, or the inertia weight acts on the second binding member 12 mainly from the bound paper sheets. 1 Binding member 1 1 and 2nd binding member Even if an external force such as opening the closed loop is applied to 12, the engaging portion 6 is engaged with the force in the open direction even if an external force is applied. As a result, the state where the end portions 11a and 12a are closed is maintained. Alternatively, in a case where the file 2 falls along the longitudinal direction of the spine 33, the second is mainly performed from the bound paper sheets. The inertial weight acts on the binding member 12, and particularly the second binding member 12 passes in the long direction of the spine 33 with respect to the first binding member 11. One of the two sets of closed loops composed of the first binding member 11 and the second binding member 12 even when an external force acting on the first binding member 11 acts. In this case, since the engaging portion 6 is engaged more deeply by the operation, the state in which the end portions 11a and 12a are closed is maintained.

On the other hand, as shown in FIG. 7, the operating lever 5 is operated as shown by the arrow in the figure, and the distal ends 11 a and 12 a of the first and second binding members 11 and 12 are operated. The holding force that holds the gap in the closed position is released, and then, as shown in FIG. 8, the first binding members 11 and 11 are marked with arrows as shown in FIG. When temporary elastic deformation is artificially applied, the engagement of the engaging portions 6 is released in the order of FIG. 6 (a) → (b) → (c). Since a force in the direction in which the distal ends 11a and 12a are released is applied to both the binding members 11 and 12 by the opening means 4, the opening means 4 is applied. As shown in FIG. 9, both the binding members 11 and 12 rotate relative to each other in a direction to open between the tips 11a and 12a, and the binding release state is reached. can get .

 As described above, according to the present embodiment, it is assumed that an unexpected external force is applied to the first and second binding members 11 and 12 due to dropping and other causes. However, the engaging portion 6 prohibits the distal end portions 11a, 12a of the both binding members 11 and 12 from being elastically deformed in the opening direction, and the paper sheets are pinched. It is possible to effectively eliminate the occurrence of an intrusion, dropout, or operation failure of the operation lever 5, for example. Therefore, it is robust against falling, accidental collision of goods, and the like, and it is possible to effectively improve the reliability and durability of the binding device 1. .

 Further, as shown in FIG. 6 (b), the engaging portion 6 temporarily moves the first binding members 11 and 11 'toward each other. The elastic deformation in the opposite direction is caused by the operation of pinching with a fingertip or the like. It can be easily granted. Therefore, the binding state by the first and second binding members 11 and 12 can be easily released with one hand.

Needless to say, the engaging portion 6 is also capable of temporarily deforming the second binding members 12 and 12 in a direction in which the second binding members 12 and 12 are separated from each other. The elastic deformation in the direction away from each other depends on the operation of pulling apart the second binding members 12 and 12 with both hands. Can be easily granted. Therefore, even if the first and second binding members 11 and 12 are given relatively high rigidity, It is possible to easily release the binding state using both hands.

 As a specific structure, the engaging portion 6 includes an outward hook-like portion 61 provided on the first binding member 11 and an inward hook-like portion provided on the second binding member 12. Due to the structure of the engagement with the part 62, the smooth engagement operation is performed at the time of closing and the opening and closing force is also controlled. The engagement portion 6 for deepening the engagement can be accurately realized by a simple processing or the like.

 In the case where the binding device 1 is attached to the cover body 3 to form the file 2, the operation effect obtained in the file 2 is fundamental. Is the same as that described above for the binding device 1.

 The engaging portion 6 of the illustrated embodiment is provided with an outwardly hooked portion 61 at the distal end portion 11 a of the first binding member 11, and a leading end portion of the second binding member 12. An inward hook-shaped portion 62 is provided on 12a, and the first binding members 11 and 11 are moved in a direction in which the first binding members 11 and 11 are close to each other, and the second binding members 12 and 1 2 The first members are temporarily elastically deformed in the directions in which the members are separated from each other, so that the first members are connected via the hooks 61 and 62. Although a structure in which the first binding member 11 and the second binding member 12 are engaged with each other is adopted, an inward hook-like portion is provided on the distal end 11a side of the first binding member 11 1. An outward hook-like portion may be provided on the distal end portion 12a side of the second binding member 12.

In addition, the engaging portion is engaged through a temporary elastic deformation. However, if the relationship is deepened by the force applied from the release operation of the release means 4, the direction of the elastic deformation is limited to the above. It is not a thing.

 For example, the engaging portion 6a shown in FIG. 10 is provided with an upward hook-like portion 61α at the leading end 11a of the first binding member 11 and the second binding. A downward hook-like portion 62a is provided at the distal end portion 12a of the member 12 so that the distal end portion 11a of the first binding member 11 is connected to the distal end portion 1 of the second binding member 12. By temporarily elastically deforming so as to sink under 2 a, the first binding member 11 is connected to the first binding member 11 via the hook-shaped portions 6 1α; and 6 2α. The second binding member 12 is configured to be engaged with the second binding member 12.

In such a structure, for example, the file 2 falls from the top side of the top, and the closed loop is opened to the first binding member 11 and the second binding member 12. Even if such outward force acts, the distal end 1 1a is structured so that the engaging portion 60; is engaged with the release force. , 12a is kept closed. In particular, when it falls from the top T side, the reaction force from the floor and the bound paper sheets act as compression force, and the second binding member 12 is seated. The second binding member 12 may be plastically deformed in the bending direction. However, according to the upward and downward engagement structure as shown in the figure, the second binding member 12 is the first binding member. Since it is forbidden to dive below 11, such plastic deformation can be effectively suppressed. Also, even if it is plastically deformed, it is possible to prevent the sheet members from being scattered by avoiding the opening between the binding members 11 and 12. be able to . Therefore, the external force acting on the first binding member 11 and the second binding member 12 such as to open the closed loop acting on the first binding member 11 and the second binding member 12 is not increased. It is possible to realize a robust file 2.

 FIG. 10 shows that the first binding member 11 and the second binding member 12 are oriented in the longer direction of the spine 33 while the above-mentioned effects are obtained. Although it is hard to say that it is robust against external force along the way, if the engaging portion 6) 3 shown in FIG. 11 is used, the first binding member 1 It can be made more robust against external forces such as opening the closed loop acting on the first and second binding members 12, and the longitudinal direction of the spine 33. Therefore, it is possible to realize a file 2 that can withstand external forces that are inconsistent along the direction.

The engaging portion 6/3 is provided with an outward hook-like portion 61i31 and an upward hook-like portion 61β2 at the distal end 11a of the first binding member 11; 2 An inward hook-like portion 6 2 β1 and a downward hook-like portion 6 2 β 2 are provided at the leading end 12 a of the binding member 12, and the first binding member 11, 11 is the same. And the second binding members 12 and 12 are temporarily elastically deformed in the directions in which they are close to each other, and in the direction in which the second binding members 12 and 12 are separated from each other. The operation in which the first binding member 11 temporarily and elastically deforms in a direction in which the first binding member 11 relatively sinks below the second binding member 12 may be simultaneously or simultaneously. The outward hook-like portion 6 1 β 1, the inward hook-like portion 6 2/3 1, and the upward hook-like portion 6 1) 3 2 and downward hook 6 2 / 3 2 is hooked, and the first binding member 11 and the second binding member 12 are engaged with each other. In this case as well, the hook-shaped portion 6 1] 3 1, 6 2) 3 1 undercut 6 1 β 1 X, 6 2) 3 1 χ 2, 6 2 j3 2 Undercut portions 6 1/3 2 x, 6 2) 3 2 χ A state is realized in which the members are mutually engaged.

 With this configuration, the distal end 1 1 1 can be exposed to an external force such as opening the closed loop acting on the first binding member 11 and the second binding member 12. a and 12a are not released, and the operation of the second binding member 12 being squeezed below the first binding member 11 by the compressive force is also prohibited. However, it can withstand the external force acting in the long direction of the spine 33. Therefore, even if the file 2 is dropped from the top T side or along the longitudinal direction of the spine 33, the function of the file 2 is maintained. It is possible to maintain the paper more accurately and prevent the sheets from falling off.

 <Second embodiment>

 The binding tool 101 of this embodiment shown in FIGS. 12 and 13 is basically similar in construction to the binding tool 1 of the first embodiment. . Therefore, common parts are denoted by the same reference numerals, and the description thereof is omitted.

However, this binding device 101 has the first and second binding members 11 1, 11 12 in the shape of the first binding device 1 according to the above-described embodiment. , 2nd binding member 1 1, 1 2 The shape is different from the shape of the shape.

 The first binding member 1 1 1 and the second binding member 1 1 2 are D-shaped in a closed state. The first binding member 11 1 includes an upright area 11 lx that rises substantially vertically from the base 10 in the closed state, and a second binding from the leading end of the upright area 11 lx. Bay curve area 1 1 1 y, which bends gradually and gradually toward the same member 1 1 2, and this bay curve area 1 1 ly It is composed of a stretching area 11 lz extending along the axis and the head. In addition, the second binding member 112 includes an upright area 112x that elongates from the base 10 longer than the upright area 111x, and an upright area 111. 2 From the leading end of X, it is composed of a bay curved area 1 1 2 y that curves with a radius of curvature smaller than that of the aforementioned bay curved area 1 1 1 y by a radius of curvature. ing . The closing position is the obliquely upward direction of the leading end 1 1 1a of the first binding member 1 1 1 and the second binding member 1 1 2 constituting the top T of the D-shape. It is a portion where the front end portion 112a of the second binding member 1112 abuts, and is located substantially directly above the upright area 112x of the second binding member 112.

 Each of the distal end portions 11 1a and 11 2a of the first binding member 1 1 1 and the second binding member 1 1 2 includes a hook-shaped portion similar to that of the first embodiment. An engaging section 6 is provided. The same applies to other configurations such as the release means 4 and the operation lever 5.

As described above, the first binding member 11 1 and the second binding portion 11 Since the top portion T is constituted by the extending portion 11 1 z extending substantially parallel to the base 10 of the material 11 2, FIGS. 2 and 12 are referred to. As is clear from the comparison, the binding amount of the binding tool 101 is substantially the same as that of the top T having an arch shape, even though the actual binding amount is the same. The distance from the base end to the front end (same in height dimensions) is reduced. As a result, the binding members 1 1 1 and 1 1 2 are not easily elastically deformed, and the binding members 1 1 1 and 1 1 2 are not easily elastically deformed. Can be more effectively prevented.

 In other configurations, the same configuration as that of the first embodiment is employed, thereby having the same operational effects as those of the first embodiment.

 In particular, in the present embodiment, the apex portion T extending substantially parallel to the base 10 is constituted by the extension portion 11.1z, and substantial binding is performed. As shown in FIG. 14, the upright area 1 12 X, which is an embedding area, almost occupies the inner space between the front cover 31 and the back cover 32, as shown in FIG. As can be seen from a comparison between the figure and Fig. 17, the dead space between the front cover 31 and the back cover 32 is greater than that of the arched one. Hardly occurs. For this reason, it is possible to effectively avoid a decrease in storage efficiency and an increase in unnecessary external dimensions of the file.

The specific configuration of each unit is not limited to only the above-described embodiment. For example, the engaging part is Of course, it does not matter if the shape is other than the above. Further, in the above embodiment, the paired first binding members are displaced in the direction toward each other, and the paired second binding members are displaced in the direction away from each other. Although the engaging portion was released, the paired first binding member was displaced in the same direction as the pair, and the paired second binding member was reversed in the opposite direction. The configuration may be such that the engagement part releases by displacing in the direction. Further, the first and second binding members may open and close by rotating in both directions. Other configurations can be variously modified without departing from the gist of the present invention. Industrial applicability

 As described above, according to the present invention, an appropriate binding state of the binding device is not released even by dropping or the like, and the function of the binding device is not impaired. It is used for the purpose of binding a large amount of paper sheets, for the purpose of being used by children, etc., or for the purpose of frequent carrying. It can be used effectively for files. Also, when files are stored on shelves, storage efficiency can be effectively improved.

Claims

The scope of the claims 1. A pair of first binding members, and a pair of second binding members corresponding to the first binding members, each of which corresponds to a corresponding first binding member. The front end is closed or opened through the relative rotation operation of the second binding member, and the binding state to the paper sheet is performed. Or, it is configured to realize the binding release state, and applies a force in a direction in which the leading end of the first and second binding members is opened. And an operation of rotating the first and second binding members relative to each other to rotate the first and second binding members against each other to keep the leading end portions in the closed / closed position. In what has a work lever,  The opening means is engaged between the distal ends through at least one temporary elastic deformation of the first binding member or the second binding member. The binding is characterized in that an engagement portion is provided to prohibit the opening and releasing operation between the front end portions by deepening the engagement by the force applied from the front end portion. Utensils.  2. Due to the temporary deformation of the engaging portion, the first binding member or the second binding member is temporarily deformed in a direction in which the first binding member and the second binding member are close to each other. A binding device as set forth in paragraph 1 of the claim, which is a part of the claim. 3. The engaging portion is formed by a temporary elastic deformation in a direction in which the first binding members or the second binding members are separated from each other. The scope of the claim that is involved A binding device as described in paragraph 1 below.  4. The engagement portion is an engagement between the inward hook-like portion provided on one of the first binding member and the second binding member and the outward hook-like portion provided on the other. The binding device described in paragraph 2 or 3 of the scope of the claim to be made.  5. The first binding member and the second binding member have their base ends attached to the base and are erected, and are erected in the closed state. At least one of the first binding member and the second binding member on the side has a top portion extending substantially in parallel with the base. Scope of the claim The binding device described in paragraph 1, paragraph 2, paragraph 3, or paragraph 4.  6. A file consisting of a binding device attached to a part of the cover,  The binding device includes a pair of first binding members, and a pair of second binding members corresponding to the first binding members. Each of the binding members includes a first binding member and a second binding member corresponding to the first binding members. The first and second binding members are closed or opened at their leading ends through the relative rotation of the first and second binding members, thereby binding to paper sheets. It is configured to realize the binding state or the binding release state, and the direction in which the distal ends of the first and second binding members are opened. Opening means for applying a force to the opening means, and the first and second binding members are rotated relative to each other by the opening and releasing means to maintain a gap between their leading ends in a closed / closed position. Operation reno. A first binding member or a second binding member between the distal end portions; At least through one of the temporary elastic deformations, and deepen the engagement by the force applied from the opening means. A filer characterized by having an engaging portion for prohibiting the opening and releasing operation between the tip ends.  7. The engaging portion is formed by temporarily deforming the first binding member or the second binding member temporarily in a direction in which the first binding member and the second binding member are close to each other. The file described in paragraph 6 of the scope of the claim.  8. The engaging portion is temporarily deformed in a direction in which the first binding members or the second binding members are separated from each other. The file described in paragraph 6 of the claim to which it relates.  9. The engaging portion is an engagement between an inward hook-like portion provided on one of the first binding member and the second binding member and an outward hook-like portion provided on the other. The scope of such claim The file as described in paragraph 7 or 8.  The first binding member and the second binding member have their base end attached to the base and are erected, and are erected in the closed state. Request that at least one of the first binding member and the second binding member on the side has a top portion extending substantially in parallel with the base. The files described in paragraphs 6, 7, 8 or 9