JP5023588B2 - Binding parts - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to relieve an excess load applying to some rings when a binding part with a plurality of the rings is bound, and at the same time, to suppress the consuming power of the device for binding the binding part and to improve the durability of the device. <P>SOLUTION: A fitting part 43h is provided at the tip of the split ring part 43d of a ring part 43b, which is spread out before its binding processing and turned into an annulus after its binding processing and a fitting part 43g is provided at the tip of the split ring part 43e. The fitting parts 43h and 43g have clearances P1-P4 movable to their fitting direction under the condition that the split ring parts 43d and 43e are made into the annuli. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a binding component applicable to a component for binding a hole formed in each of a plurality of sheets to create a booklet. Specifically, the first fitting portion is provided at the tip of the first developing portion for the ring, the second fitting portion is provided at the tip of the second developing portion, and the first and second fittings are provided. The portion has a predetermined gap that is movable in the fitting direction in a state where the first and second development portions are formed in an annular shape, so that when binding a binding component having a plurality of rings, An excessive load applied can be released, and the power consumption of the device for binding the binding components can be suppressed, and the durability of the device can be improved.

  In recent years, paper processing apparatuses that perform punching and binding processes are often used in combination with black-and-white and color copiers and printing apparatuses. In this case, the paper on which the image is formed by a copying machine or the like is punched, and the binding component is automatically inserted and fitted into the hole of the punched paper.

  For example, the binding component includes a spine portion and a plurality of rings arranged and fixed on the spine portion. This ring is unfolded before processing and becomes a ring after processing. The binding component is held and fixed by a holding unit that holds the binding component. The binding component that is held and fixed is pressed from the outside of each ring of the binding component by a fitting portion that fits the binding component, and is fitted into the hole of the sheet to form an annular shape.

  In relation to such a binding component, Patent Document 1 discloses a binder (binding component) for binding loose-leaf paper. According to this binder, it has a backbone part and a plurality of rings. The tip of the ring is provided with a projection and a hole for fitting the projection. With this configuration, each ring is pressed from the outside by the plate of the binding part, and the protrusion and the hole are fitted in the hole of the loose-leaf paper, and the binder is bound to the loose-leaf paper.

Japanese Patent Laying-Open No. 2003-320780 (page 3 in FIG. 3)

  However, according to the conventional method and the binding component according to Patent Document 1, each ring of the binder is pressed from the outside by the plate of the binding portion, and the protrusion and the hole are fitted in the hole of the sheet. For this reason, if the plate of the binding portion is bent during the fitting of the binder, the load applied to each ring of the binder varies, and an excessive load is applied to some rings and a wasteful fitting load is required. There is a fear. As a result, the power consumption of the device that binds the binder increases, and the durability of the device decreases.

  SUMMARY OF THE INVENTION Accordingly, the present invention solves the above-described problem, and is capable of releasing an excessive load applied to a ring of a part of the binding component and binding the binding component when binding the binding component (binder). It is an object of the present invention to provide a binding component that can reduce power consumption and improve the durability of the apparatus.

In order to solve the above-described problem, the binding component according to claim 1 according to the present invention is a binding component for creating a booklet by binding a predetermined number of binding holes punched in each of a plurality of sheets. The first deployment includes: a spine portion; and first and second deployment portions for a ring that are arranged and attached to both sides of the spine portion and that are unfolded before processing and annular after processing. A first fitting portion is provided at the tip of the portion, and the first fitting portion has an outer peripheral surface of the binding component when the first and second development portions are bound, when the inner peripheral surface of the inner peripheral portion of the binding component, provided along the said inner peripheral surface of the first concave guide portion provided along the outer peripheral surface of the expansion portion and the first expansion portion A semi-arrow shaped fitting claw, and a second fitting portion is provided at a tip of the second expanding portion, and the second fitting portion Has the second of the inner convex guide portion provided along a circumferential surface and the second of said claw receiving portions provided along the outer peripheral surface of the expansion portion of the expansion portion, the first and In a state where the second deployment portion is brought into contact with the ring shape, the first fitting portion uses a semi-arrow-shaped inclination of the fitting claw to receive a claw receiving portion of the second fitting portion. The concave guide part covers the convex guide part to suppress the force with which the claw receiving part is pushed up, and when the inclination of the fitting claw is finished, the fitting claw is hooked on the claw receiving part. The first fitting portion and the second fitting portion are fitted, and each direction in which the first and second fitting portions are fitted is defined as the fitting direction. and the second fitting portion, the tip and the tip of the concave guide portion movable to face the second engaging portion to said fitting direction The first gap is the distance between Tokoro, the claw receiving portion of the tip and the second gap the tip is the distance between the locations facing the first fitting portion, the fitting claws tip and the in the third gap tip is the distance between the locations facing the second fitting portion and the distance between the portion where the tip and the tip of the convex guide portion is opposed to the first fitting portion A fourth gap is provided.

The binding component according to the present invention is a case where a booklet is created by binding a predetermined number of binding holes perforated in each of a plurality of sheets, and the first and second development portions of the binding component are provided. when the annular first gap tip and the tip of the concave guide portion that is movable in the fitting direction is the distance between the locations facing the second fitting portion, the tip and the tip of the claw receiving portion the third gap and the second gap is a gap between the portion facing the first fitting portion, the tip and the tip of the fitting claw is the distance between the point facing the second fitting part, The fourth gap, which is the distance between the tip of the convex guide portion and the portion where the tip opposes the first fitting portion, absorbs the excessive load applied to the development portion.

According to the binding component according to the present invention, when a booklet is created by binding a predetermined number of binding holes perforated in each of a plurality of sheets, the ring is developed before processing and becomes a ring after processing. A first fitting part is provided at the tip of the first developing part, a second fitting part is provided at the tip of the second developing part, and the first and second fitting parts are It has the 1st- 4th clearance gap which can move to a fitting direction in the state by which the 1st and 2nd expansion | deployment part was made into the cyclic | annular form.

  With this configuration, when the plurality of development portions of the binding component are annular, even if there is a variation in the load applied to each development portion, the excessive load applied to some of the development portions can be released. Thereby, since a useless fitting load is not required, the power consumption of the device for binding the binding components can be suppressed, and the durability of the device can be improved.

Hereinafter, an embodiment of a binding component according to the present invention will be described with reference to the drawings. FIG. 1 is a partially broken perspective view showing a configuration example of the binding component (consumable item) 43. A binding component 43 shown in FIG. 1 is a component for creating a booklet by binding holes punched in each of a plurality of sheets. The binding component 43 includes a spine portion 43a and a plurality of ring portions 43b, and a resin injection molded product in which the ring portions 43b are arranged at regular intervals on the spine portion 43a having a length corresponding to the size of the standard paper. It is. The ring part 43b includes a first split ring part 43d, a second split ring part 43c, and a third split ring part 43e. The ring portion 43b is unfolded before processing and becomes a ring after processing. The ring part 43b shown in FIG. 1 is in a developed state before processing.

  The split ring 43c is arranged integrally with the spine 43a. A first hinge 43k is provided at one end of the split ring 43c. The split ring portion 43d is coupled through the hinge 43k so as to be rotatable. The split ring portion 43d constitutes an example of a first deploying portion, and a first fitting portion 43h is provided at the tip of the split ring portion 43d. The fitting part 43h has a fitting claw 43j and a concave guide part 43n. The fitting claw 43j has a half-arrow shape (triangle). Here, when the distance between the outer peripheral surface and the inner peripheral surface of the split ring portion 43d is the thickness of the split ring portion 43d, the thickness of the concave guide portion 43n and the fitting claw 43j is about half the thickness of the split ring portion 43d. It is. The concave guide part 43n is provided along the outer peripheral surface of the split ring part 43d. The fitting claw 43j is provided along the inner peripheral surface of the split ring portion 43d.

  A second hinge 43l is provided at the other end of the split ring 43c, and a split ring portion 43e is coupled to the second ring 43c via the hinge 43l. The split ring portion 43e constitutes an example of a second development portion, and a second fitting portion 43g is provided at the tip of the split ring portion 43e. The fitting part 43g has a claw receiving part 43i and a convex guide part 43o. The convex guide part 43o and the claw receiving part 43i are about half the thickness of the split ring part 43e. The convex guide portion 43o is provided along the inner peripheral surface of the split ring portion 43e. The claw receiving portion 43i is provided along the outer peripheral surface of the split ring portion 43e. In this way, the binding component 43 is configured.

  FIGS. 2A and 2B are partially broken perspective views showing an operation example of the binding component 43. 2A, the outer peripheral surfaces of the split ring portions 43d and 43e of the unfolded ring portion 43b shown in FIG. 1 are pressed, and the split ring portion 43d has an arrow E about the hinge 43k as an axis. The split ring portion 43e is rotated in the direction of the arrow F around the hinge 43l and is half-bound. 2B, the outer peripheral surfaces of the split ring portions 43d and 43e of the half-stitched ring portion 43b shown in FIG. 2A are pressed, and the split ring portion 43d rotates in the direction of arrow E. Then, the split ring portion 43e is rotated in the direction of arrow F to form an annular shape.

  For example, when the ring portion 43b is annular, the fitting portion 43h and the fitting portion 43g are brought into contact with each other. After the contact, the fitting claw 43j of the fitting portion 43h pushes up the claw receiving portion 43i of the fitting portion 43g using the inclination of the fitting claw 43j having a half-arrow shape. At this time, the concave guide portion 43n of the fitting portion 43h covers the convex guide portion 43o of the fitting portion 43g and tries to suppress the force that pushes up the claw receiving portion 43i. When the inclination of the fitting claw 43j is finished, the fitting claw 43j is hooked on the claw receiving portion 43i, and the fitting portion 43h and the fitting portion 43g are fitted. In this manner, the expanded ring portion 43b shown in FIG. 1 is fitted with the fitting portion 43h and the fitting portion 43g, thereby forming an annular ring portion 43b shown in FIG.

  FIG. 3A is a top view showing a function example of the annular ring portion 43b. The ring 43b portion shown in FIG. 3 (A) is a top view of the split ring portions 43d and 43e formed in a ring shape. The fitting claw 43j of the fitting portion 43h shown in FIG. 3A is hooked and fixed to the claw receiving portion 43i of the fitting portion 43g. At this time, the fitting portions 43g and 43h have predetermined gaps (clearances) P1 and P2 that are movable in the fitting direction. Here, the fitting direction means each direction in which the fitting portions 43h and 43g are fitted. In this example, each direction means the direction of arrow E shown in FIG. 2 in which the fitting portion 43h rotates and the direction of arrow F in which the fitting portion 43g rotates. The clearance P1 is the distance between the tip of the concave guide portion 43n and the location where the tip contacts the fitting portion 43g. The clearance P2 is the distance between the tip of the claw receiving portion 43i and the location where the tip contacts the fitting portion 43h. The clearance P3 is the distance between the tip of the fitting claw 43j and the location where the tip contacts the fitting portion 43g.

  FIG. 3B is a side view as viewed in the direction of arrow X showing an example of the function of the annular ring portion 43b. The clearance P1 shown in FIG. 3 (B) is the same as the clearance P1 shown in FIG. 3 (A). The clearance P4 is the distance between the tip of the convex guide portion 43o and the location where the tip contacts the fitting portion 43h. FIG. 3C is a cross-sectional view taken along arrow YY showing an example of the function of the annular ring portion 43b. The clearances P2 and P3 shown in FIG. 3C are the same as the clearances P2 and P3 shown in FIG. In this manner, the fitting portions 43g and 43h have clearances P1 to P4 that are movable in the fitting direction in a state in which the split ring portions 43d and 43e are annular. The excess loads applied to the split ring portions 43d and 43e are absorbed by the clearances P1 to P4. As a result, when the plurality of split ring portions 43d and 43e are annular, even if there is a variation in the load applied to each split ring portion, the excessive load applied to some of the split ring portions can be released. .

[Example of use]
Next, an example of use of the binding component 43 will be described. 4A and 4B are conceptual diagrams showing a configuration example of the binding device 100 for using the binding component 43 according to the present invention. The binding device 100 is a device that punches recording paper (hereinafter simply referred to as paper) output from a copier or a printing device, and then performs binding processing with a predetermined binding component 43 and discharges the recording paper. The binding apparatus 100 is preferably used side by side with a copying machine, a printing apparatus (image forming apparatus), and the like, and has a height similar to that of a copying machine or a printing machine.

  A binding apparatus 100 illustrated in FIG. 4A includes an apparatus main body (housing) 101. A right door 70 and a left door 71 are provided on the front side of the apparatus main body 101. The right door 70 and the left door 71 are attached to the apparatus main body 101 so as to be openable and closable by hinges (not shown). The binding device 100 includes a stacker 63 below the left door 71. The stacker 63 is provided with a stacker tray 73. The stacker tray 73 receives a booklet in which a binding component 43 is bound in a sheet bundle and is discharged, and accumulates the booklet by adjusting the height according to the thickness and number of booklets. Further, the stacker 63 is provided with a stacker window 72 for confirming the number of accumulated booklets on the front side of the apparatus main body 101.

  The binding device 100 illustrated in FIG. 4B is in a state where the right door 70 and the left door 71 of the binding device 100 illustrated in FIG. In the apparatus main body 101, a paper transport unit 10 is provided. The paper transport unit 10 includes a first transport path 11 and a second transport path 12. The conveyance path 11 conveys the paper 3 output from a copier or the like toward the conveyance path 12.

  The transport path 12 has a switchback function that can switch the transport path from the transport path 11. Here, the switchback function decelerates and stops the conveyance of the sheet at a predetermined position on the conveyance path 11, and then switches the conveyance path of the sheet from the conveyance path 11 to the conveyance path 12, and moves the sheet in the reverse direction. The function to send out.

  A punch processing unit 20 is disposed on the downstream side of the conveyance path 12. The punch processing unit 20 switches back from the conveyance path 11 and punches two or more binding holes at one end of the sheet conveyed by the conveyance path 12. A punch residue storage unit 26 is provided below the punch processing body so as to store punch scraps cut off by the punch processing unit 20.

  A binder paper alignment unit 30 is disposed downstream of the punch processing unit 20. The unit 30 aligns the positions of the holes of a plurality of sheets discharged from the punch processing unit 20 and temporarily holds (accumulates). To be made.

  The binder paper alignment unit 30 guides the paper to a predetermined position when the paper enters and prepares the rear end of the paper. Further, the unit 30 guides the leading edge and the lateral edge of the sheet to an appropriate position by a multi-shaped rotating member for aligning the leading edge and the lateral edge of the sheet with the reference position.

  A bind processing unit 40 is disposed on the downstream side of the binder paper alignment unit 30. The bind processing unit 40 creates a booklet by binding a plurality of paper bundles aligned by the binder paper alignment unit 30 with the binding component 43. The binding processing unit 40 includes a binding mechanism 41 and a binder (binding component) cassette 42. A plurality of binding components 43 are stacked and set on the binder cassette 42. The binding mechanism 41 receives the binding component 43 having a predetermined size from the binder cassette 42 in which the unfolded binding component 43 is accommodated, and binds the binding component 43 into a hole punched at a predetermined position on the sheet.

  In this example, the binding mechanism 41 moves so as to reciprocate between the paper conveyance direction of the binder paper alignment unit 30 and the binding component 43 provision direction of the binder cassette 42. First, the binding mechanism 41 pulls out and holds one binding component 43 from the binder cassette 42 at a position orthogonal to the transport direction of the transport path 11, and in this state, a position where the paper transport direction of the binder paper alignment unit 30 can be seen. Rotate to. Next, at this position, the binding mechanism 41 receives the sheet bundle in which the punch holes are positioned from the binder paper aligning unit 30, and inserts the binding component 43 into the punch holes and fits them. After the fitting, the binding mechanism 41 releases the binding component 43. When the binding component 43 is bound to the sheet bundle and a booklet is created, the binder paper alignment unit 30 delivers the created booklet to the discharge unit 60.

  A discharge unit 60 is disposed on the downstream side of the bind processing unit 40. The discharge unit 60 receives the booklet created by the bind processing unit 40 and discharges it. The discharge unit 60 includes, for example, a first belt unit 61, a second belt unit 62, and a stacker 63.

  The belt unit 61 receives the booklet falling from the binder paper alignment unit 30 and switches the booklet sending direction. For example, after receiving the booklet, the belt unit 61 turns from a position where the binder paper alignment unit 30 can see the paper conveyance direction to a position where the stacker 63 can be seen.

  A belt unit 62 is disposed at a position where the stacker 63 can be seen. The belt unit 62 receives the booklet whose sending direction is switched by the belt unit 61 and relays the booklet, and delivers the booklet to the stacker 63. The stacker 63 accumulates booklets conveyed by the belt units 61 and 62. In this way, a booklet 90 shown in FIG. 5D is created.

  Next, a paper processing method according to the present invention will be described. 5A to 5D are process diagrams illustrating an example of functions of the binding device 100. FIG. The sheet 3 shown in FIG. 5A is fed from the upstream side (such as a copying machine) of the binding device 100 and has no punch holes. The sheet 3 is transported toward a predetermined position on the transport path 11 illustrated in FIG. 4, and is decelerated and stopped at a predetermined position on the transport path 11. Thereafter, the conveyance path of the sheet 3 is switched from the conveyance path 11 to the conveyance path 12 by the switchback function, and the sheet 3 is sent in the reverse direction and conveyed to the punch processing unit 20.

  In the punch processing unit 20, as shown in FIG. 5B, a predetermined number of binding holes are punched at one end of the paper 3. The sheet 3 ′ with the binding holes punched is conveyed to the bind sheet aligning unit 30. In the bind sheet aligning unit 30, when the preset number of sheets is reached, for example, the position of the binding hole is aligned like the sheet 3 ″ shown in FIG. 5C, and the bind processing unit 40 cooperates. Then, the binding component 43 is inserted into and fitted into the hole, thereby obtaining the booklet 90 shown in Fig. 5D in which the binding component 43 is fitted. It is discharged and accumulated in the stacker 63.

  FIG. 6 is a perspective view illustrating a configuration example of the binding mechanism 41. The binding mechanism 41 shown in FIG. 6 includes a main body 41a, and the main body 41a has an opening 41c at the top. The opening 41c has a rectangular shape having a long side in the longitudinal direction of the upper portion of the main body 41a. On both sides of the long side of the rectangle of the opening 41c, the binding claw 41z is movably attached to the main body 41a in the direction in which the binding component 43 is bound. The binding mechanism 41 shown in FIG. 6 is in a state in which the binding component 43 is fitted by the binding claws 41z on both sides, and the binding component 43 is annular.

  FIG. 7A is a top view illustrating a configuration example of the binding mechanism 41, and FIG. 7B is a cross-sectional view illustrating an internal configuration example of the binding mechanism 41. A binding mechanism 41 illustrated in FIG. 7B illustrates a configuration example of related members on the cutting plane of the binding mechanism 41 illustrated in FIG.

  In this example, the binding mechanism 41 has a binding component acquisition function for acquiring the binding component 43 from the binder cassette 42 shown in FIG. In order to operate this function, the binding mechanism 41 includes a binding component gripping portion 41b, a gripping portion link 41f, a gripping portion cam 41g, a gripping portion link rotating shaft 41j, and a binding mechanism driving motor 45a (see FIG. 8). Composed.

  The binding component gripping portion 41b has a predetermined height, and has a shape in which the width in the horizontal direction and the vertical direction is slightly smaller than the opening portion 41c. In addition, a plurality of binding component gripping claws (not shown) for gripping the binding component 43 are provided at the upper end portion of the binding component gripping portion 41b. Further, the binding component gripping portion 41b has a protruding gripping portion link coupling portion 41e on the side surface. The binding part gripping part 41b and the gripping part link 41f are in a state where the gripping part link coupling part 41e is fitted and coupled to the elongated gripping part coupling hole 41i of the gripping part link 41f. The grip portion link 41f is connected to the grip portion cam 41g, and is configured to be rotatable about the grip portion link rotation shaft 41j by rotating the grip portion cam 41g.

  With this configuration, the binding component gripping portion 41b moves upward to acquire the binding component 43 from the binder cassette 42, and then moves downward while holding the binding component 43. For example, by the rotation of the grip portion cam 41g, the grip portion link 41f rotates clockwise around the grip portion link rotation shaft 41j. At this time, the position and posture of the grip portion coupling hole 41i change, and as a result, the binding component grip portion 41b moves upward via the grip portion link coupling portion 41e. Further, when the binding part 43 is acquired by moving upward and moving downward, the grip part link 41f rotates counterclockwise around the grip part link rotation shaft 41j by the rotation of the grip part cam 41g. To do. At this time, the position and posture of the grip portion coupling hole 41i are restored to the original position, and as a result, the binding component grip portion 41b moves downward via the grip portion link joint portion 41e. In this way, the binding mechanism 41 acquires the binding component 43.

  In this example, the binding mechanism 41 has a binding claw opening / closing function for binding the acquired binding component 43 to a sheet. In order to operate this function, the binding mechanism 41 includes a fitting portion 41x. The fitting portion 41x includes a binding claw 41z, a binding claw link A41l, a binding claw link B41m, a binding portion link C41n, a spring 41o, a binding claw cam (not shown), and a binding mechanism drive motor 45a (see FIG. 8). Is done. With this configuration, the fitting portion 41x is fitted by inserting both ends of the binding component 43 held by the binding component gripping portion 41b into the hole of the sheet.

  Each binding claw 41z is rotatably connected to the upper end of a binding claw link A41l having an L-shape via a binding claw rotation shaft 47b. The binding claw rotation shaft 47b is attached to the upper end portion of the binding claw link A41l. Each binding claw link A41l is rotatably attached to the main body 41a at a binding claw link A rotation axis A41r located at a substantially central portion of each binding claw link A411.

  Further, the two binding claw links A41l are rotatably connected at a link coupling portion A46j located at the end opposite to the end to which the binding claw 41z is connected. Further, the upper end portion of the binding claw link B41m having a predetermined length in the vertical direction is rotatably connected to the two binding claw links A41l at the link coupling portion A46j.

  The binding claw link B41m has a long hole-shaped binding claw link B coupling hole 41s at the lower end. The binding claw link B coupling hole 41s is fitted with a protruding link coupling part B46k of the binding part link C41n, and the binding claw link B41m and the binding claw link C41n are movably coupled at the coupling part B46k. . Further, the binding claw link B41m is attached to the main body 41a via a spring 41o at the center. An upward force is applied to the binding claw link B41m by the spring 41o.

  The binding claw link C41n is rotatably attached to the main body 41a on the binding claw link C rotating shaft 41t. Further, when the binding claw cam (not shown) rotates, the binding claw link C41n rotates about the binding claw link C rotation shaft 41t.

  With the above configuration, the opening and closing operation of the binding claw 41z is performed. In this example, a binding claw cam (not shown) rotates, the binding claw link C41n rotates counterclockwise, and a downward force is applied to the binding claw link B41m. As a result, a counterclockwise force is applied to the binding claw link A41l shown on the right side of FIG. 7B, and a clockwise force is applied to the binding claw link A411 shown on the left side, and each binding claw 41z binds. The binding claw 41z is closed by moving in the direction of the component 43. The binding claw 41z shown in FIG. 7B is in a substantially closed state, and the binding component 43 is in an annular state.

  FIG. 8 is a block diagram illustrating a configuration example of a control system of the bind processing unit 40. The control system of the bind processing unit 40 shown in FIG. 8 includes a control unit 50, a motor driving unit 44a, and a signal processing unit 44b.

  The control unit 50 includes a system bus 55. The system bus 55 includes an I / O port 54, an EEPROM (Electronically Erasable and Programmable Read Only Memory) 53, a RAM (Random Access Memory) 52, and a CPU (Central Processing Unit). ) 51 is connected. The EEPROM 53 stores a program (binding component acquisition control program) for controlling the operation in which the binding mechanism 41 acquires the binding component 43 and binds the binding component 43 to a sheet. The RAM 52 is used as a work memory when acquiring and controlling the binding component 43 based on the binding component acquisition control control program.

  A motor drive unit 44a and a signal processing unit 44b are connected to the I / O port 54. An external terminal is connected to the signal processing unit 44b, and a copy machine (not shown) is connected to the external terminal. For example, information on the number of sheets for one booklet printed by a copier combined with the binding apparatus 100 is output from the external terminal to the signal processing unit 44b as the specified number of sheets signal S45g, and the signal processing unit 44b outputs the information. The specified number signal S45g is binarized and the detection data Dp is output to the CPU 51 via the I / O port 54.

  When the CPU 51 inputs the detection data Dp and determines that a prescribed number of sheets 3 ′ of one booklet shown in FIG. 5 have been accumulated in the paper alignment unit 30 shown in FIG. 4 based on the detection data Dp, the motor drive unit The motor control data Dm is output to 44a to control the binding mechanism 41 to perform the binding process. The motor driving unit 44 a is connected to the CPU 51 via the I / O port 54 and further connected to a binding mechanism driving motor 45 a disposed in the binding mechanism 41.

  The motor drive unit 44a receives the motor control data Dm output from the CPU 51, and outputs a binding mechanism drive signal S45a obtained by decoding the motor control data Dm to the binding mechanism drive motor 45a. The motor 45a starts the process of binding the binding component 43 by inputting the binding mechanism driving signal S45a.

  Subsequently, an operation example of binding the binding component 43 by the binding mechanism 41 will be described. 9A and 9B are process diagrams showing an operation example (part 1) of binding the binding component 43. FIG. In this example, an operation example of a part of the binding component gripping portion 41b shown in FIG. 7B and each binding claw 41z will be described. The binding component 43 shown in FIG. 9A is in a half-bound state in which it is half-bound from the unfolded state. In this example, the grip part link 41f is rotated counterclockwise by the rotation of the grip part cam 41g shown in FIG. 7B from the state in which the binding component 43 is gripped, and the grip part link coupling part 41e is used. As a result, the binding component gripping portion 41b moves downward. At this time, the binding claw 41z stands by at a position where the binding component 43 forms a half-binding state. As a result, the binding component gripping portion 41b moves downward, and the outer peripheral surfaces of the split ring portions 43d and 43e abut against the binding claw 41z, so that a half-binding state of the binding component 43 shown in FIG. 9A is formed. The

  The binding component 43 shown in FIG. 9B is formed by binding the half-binding binding component 43 shown in FIG. 9A into an annular shape. In this example, the binding claw link C41n shown in FIG. 7B is rotated counterclockwise by a binding claw cam (not shown), and a downward force is applied to the binding claw link B41m. The binding component 43 is moved in the binding direction, and the split ring portions 43d and 43e of the binding component 43 become annular in the hole of the double-dotted line paper 3 ″. At this time, the ring portion 43b shown in FIG. The fitting parts 43g and 43h have the clearances P1 to P4 shown in Fig. 3 (A) to 3 (C), whereby the load applied from the binding claws 41z to the plurality of split ring parts 43d and 43e varies. Even if there is, an excessive load applied to some of the split ring portions can be released.

  10A and 10B are process diagrams illustrating an operation example (part 2) of binding the binding component 43. In this example, description will be given using the binding claw 41z shown in FIGS. The binding component 43 shown in FIG. 10A is a half-bound state in a half-bound state. A binding component 43 shown in FIG. 10B is formed by binding the half-binding binding component 43 shown in FIG. 10A into an annular shape.

  In this example, both ends of the binding claw 41z in the longitudinal direction are connected to the binding claw link A41l shown in FIG. 7B via the binding claw rotation shaft 47b. For this reason, when binding the binding component 43 with the binding claw 41z, a load is applied to both ends of the binding claw 41z, and the central portion of the binding claw 41z is slightly bent in the opposite direction in which the binding component 43 is bound. In this case, a longer stroke is required for binding the ring portion 43b positioned at the center of the binding component 43 than the stroke for binding the ring portion 43b positioned at both ends of the binding component 43. For this reason, since the long stroke which binds the ring part 43b located in the center is set, an excessive load is applied to the ring parts 43b located at both ends. With respect to this excessive load, the excess added to the ring portions 43b located at both ends by the clearances P1 to P4 of the fitting portions 43g and 43h of the annular ring portion 43b shown in FIGS. The load can be released. Further, even when the stroke for binding the binding component 43 varies somewhat, the variations can be absorbed by the clearances P1 to P4, so that the shortage of the binding stroke hardly occurs and the reliability of the binding device 100 can be improved.

  As described above, according to the binding component 43 according to the present invention, the booklet 90 is created by binding holes punched in each of the plurality of sheets 3 ′, and the booklet 90 is developed before the processing and becomes a ring shape after the processing. A fitting part 43h is provided at the tip of the split ring part 43d of the ring part 43b, a fitting part 43g is provided at the tip of the split ring part 43e, and the fitting parts 43h and 43g are divided into the split ring parts 43d and 43e. Has clearances P1 to P4 that are movable in the fitting direction in a state in which the ring is made annular.

  With this configuration, when the plurality of split ring portions 43d and 43e of the binding component 43 are annular, even if the load applied to each split ring portion varies, the clearances P1 to P4 are excessively applied to the split ring portions 43d and 43e. Absorbs load. Therefore, the excessive load applied to some of the split ring portions can be released. Thereby, since a useless fitting load is not required, the power consumption of the binding device 100 can be suppressed and the durability of the device can be improved.

  In consideration of the amount of bending at the center of the binding claw 41z, it is also conceivable to form the binding claw 41z in an arcuate shape G (two-dot chain line) shown in FIG. By forming in this way, it becomes possible to make the binding strokes of the central portion and both ends of the binding claw 41z the same, and to prevent variations in the load applied to the split ring portions 43d and 43e of the binding component 43. Become. Further, the binding claw 41z is composed of a single sheet, but it is also conceivable to divide the binding claw 41z into a plurality of pieces to increase the rigidity of the binding claw 41z and to prevent the binding claw 41z from being bent.

  The present invention is preferably applied to a binding component for creating a booklet by binding holes punched in each of a plurality of sheets.

FIG. 6 is a partially broken perspective view illustrating a configuration example of the binding component 43. FIGS. 2A and 2B are partially broken perspective views showing an operation example of the binding component 43. (A)-(C) are explanatory drawings which show the example of a function in the cyclic | annular ring part 43b. (A) And (B) is a conceptual diagram which shows the structural example of the binding apparatus 100 for using the binding component 43 which concerns on this invention. (A)-(D) are process drawings which show the function example of the binding apparatus 100. FIG. 3 is a perspective view illustrating a configuration example of a binding mechanism 41. FIG. (A) And (B) is explanatory drawing which shows the example of an internal structure of the binding mechanism 41. FIG. 3 is a block diagram illustrating a configuration example of a control system of a bind processing unit 40. FIG. (A) And (B) is process drawing which shows the operation example (the 1) which binds the binding component 43. FIG. (A) And (B) is process drawing which shows the operation example (the 2) which binds the binding component 43.

Explanation of symbols

43 Binding component 43b Ring part 43d 1st division | segmentation ring part (1st expansion | deployment part)
43c 2nd division | segmentation ring part 43e 3rd division | segmentation ring part (2nd expansion | deployment part)
43h first fitting portion 43g second fitting portion 43j fitting claw 43i claw receiving portion 43n concave guide portion 43o convex guide portion

Claims (1)

In the binding part for creating a booklet by binding a predetermined number of binding holes perforated in each of a plurality of sheets, the parts being unfolded before processing and ring-shaped after processing,
The spine,
Arranged on both sides of the spine, comprising first and second deployment parts for rings;
A first fitting portion is provided at the tip of the first deployment portion,
The first fitting portion is
When the outer peripheral portion of the binding component is an outer peripheral surface when the first and second development portions are in contact with each other, and the inner peripheral portion of the binding component is an inner peripheral surface,
Having said first fitting pawl semi arrow shape provided the concave guide portion provided along an outer peripheral surface and along the inner peripheral surface of the first development of the development unit,
A second fitting portion is provided at the tip of the second deployment portion,
The second fitting portion is
Having said second said convex guide portion provided along a circumferential surface and the second of said claw receiving portions provided along the outer peripheral surface of the expansion portion of the expansion portion,
In a state in which the first and second development portions are in contact with each other to form an annular shape,
The first fitting portion is
Pushing up the claw receiving portion of the second fitting portion using the half-arrow-shaped inclination of the fitting claw,
The concave guide part covers the convex guide part and suppresses the force by which the claw receiving part is pushed up,
When the inclination of the fitting claw is finished, the fitting claw is hooked on the claw receiving portion, and the first fitting portion and the second fitting portion are fitted,
When each direction in which the first and second fitting portions are fitted is a fitting direction,
The first and second fitting portions are
First gap tip and the distal end of the concave guide portion movable is distance between the point facing the second fitting portion to said fitting direction,
A second gap which is a distance between the tip of the claw receiving portion and the portion where the tip is opposed to the first fitting portion;
The third gap tip and the tip of the fitting pawl is distance between the point facing the second fitting part and,
Binding component, characterized in that it comprises a fourth gap tip and the tip of the convex guide portion is a distance between the portion opposed to said first fitting portion.

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