JP4872661B2 - Paper processing device - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper processing apparatus suitable for being applied to an apparatus for punching or binding a recording paper output from a black-and-white and color copier or printing apparatus. Specifically, a paper fixing and moving mechanism for moving a paper bundle obtained by bundling a plurality of papers is provided, and a paper fixing and moving part is movably attached to the main body member. The paper fixing and moving unit can be structurally separated and the paper fixing and moving unit mounted with the minimum necessary mechanical parts can be easily fixed to the clamp opening / closing drive unit and easily fixed and bound. It can be moved to a process or the like.

  In recent years, a paper processing apparatus that performs punching and binding processing is often used in combination with a black-and-white and color copiers and printing apparatuses. According to this type of sheet processing apparatus, a recording sheet after image formation is received and punched on the downstream side of the sheet using a punch function. The plurality of sheets after punching are aligned. The binding component is automatically inserted into the punched holes of the aligned multiple sheets (see Patent Document 1).

  By the way, when aligning a plurality of sheets after punching, the sheet processing apparatus is provided with a sheet holding unit to temporarily hold the sheets. The paper storage unit is provided with an alignment pin driving mechanism, and the paper storage unit stacks a plurality of papers that have entered from the paper conveyance path while being aligned. The stacked sheets are aligned so that the end faces and leading ends of the sheets are aligned with the reference position. When one sheet of paper is stacked, alignment pins are inserted into two predetermined punch holes of the sheet bundle, and alignment (pre-alignment) is performed based on the positions of the punch holes. The realigned sheet bundle is moved to the binding processing unit while being pinched by the clamp moving mechanism. In the binding processing unit, the ring binding process is performed by the binding component in a state where the sheet bundle is aligned.

Japanese Patent Laying-Open No. 2003-320780 (2nd page, FIG. 4)

  However, the conventional paper processing apparatus has the following problems.

i. In the paper processing apparatus as found in Patent Document 1, a clamp moving mechanism is provided, and the paper bundle is often held and moved to the binding processing unit. In this case, the clamp mechanism unit and the clamp opening / closing drive unit are provided on the main body substrate to constitute the clamp moving mechanism. Therefore, when the aligned sheet bundle is held by the clamp mechanism unit, the clamp mechanism unit and the clamp opening / closing drive unit The clamp moving mechanism must be moved to the binding processing unit for each main body substrate on which is mounted.

  ii. The structure of moving the entire clamp moving mechanism to the binding processing unit not only complicates the structure of the clamp moving mechanism (hereinafter referred to as a paper fixing and moving mechanism), but also a harness for supplying power to the clamp opening / closing drive unit ( Wiring) processing is also complicated, and there is a problem that the paper processing apparatus is hampered in cost reduction.

  SUMMARY OF THE INVENTION Accordingly, the present invention solves the above-described problems, and an object thereof is to provide a sheet processing apparatus that can simplify the structure of a sheet fixing and moving mechanism that fixes a sheet bundle and moves it to a binding process or the like. And

In order to solve the above problems, a sheet processing apparatus according to the present invention is a sheet processing apparatus that moves a sheet bundle obtained by bundling a plurality of sheets in a predetermined direction, and is fixed to the left end side and the right end side. Each having a clamping member for moving and a clamping member for moving, and a sheet fixing moving mechanism for fixing and moving the sheet bundle. The sheet fixing moving mechanism is attached to the main body member and attached to the main body member on the left end side and A clamp opening / closing drive unit that drives a movable clamp member on the right end side, and a paper fixing / moving unit that is movably attached to the main body member and that moves by fixing the sheet bundle independently of the clamp opening / closing drive unit. Yes, and the sheet fixed moving mechanism includes a shaft hole at one end with a predetermined shape, and a substrate for the clamping member mounting having a long hole and a pair of restricting hole at a predetermined position of the other end The left end side and right end of the body member The fulcrum shared by one end of the clamp member for fixing on the left end side and the right end side and one end of the movable clamp member is engaged with the shaft hole of each substrate via the fulcrum shaft member, and the left end A shaft portion provided at the other end of the fixing clamp member on the side and a shaft portion provided at the other end of the movable clamp member are engaged with the regulation holes of the respective left end substrates, A shaft portion provided at the other end of the fixing clamp member on the right end side and a shaft portion provided at the other end of the movable clamp member are engaged with the restriction holes of the respective right end substrates, and the left end The shaft portion at the other end of the clamp member for fixing the side and the shaft portion at the other end of the clamp member for movement are engaged with each one end of the pair of equal length link members on the left end side, and the right end side The shaft at the other end of the clamp member for fixing and the shaft at the other end of the clamp member for movement are the same on the right end side. The other end of the equal length link member is engaged with the other end of the left end side equal length link member through the engagement member in the long hole of the left end side substrate, and the right end side equal length link is engaged. in which the other end of the member is characterized that you have form an engaged pantograph structure via engagement member into the long hole of the right end side of the substrate.

According to the sheet processing apparatus of the present invention, when a sheet bundle obtained by bundling a plurality of sheets is moved in a predetermined direction , the sheet fixing and moving mechanism includes a clamp member for fixing to the left end side and the right end side. And a movable clamp member, respectively, and a sheet bundle is fixed and conveyed. Paper fixed moving mechanism, form a pantograph structure, the sheet fixed mobile unit is movably attached to the main body member. The pantograph structure has a predetermined shape, a shaft hole at one end thereof, and a board for mounting a clamp member having a long hole and a pair of restriction holes at a predetermined position at the other end. It is comprised including the side and the right end side. In this pantograph structure, a fulcrum shared by one end of the fixing clamp member on the left end side and the right end side and one end of the movable clamp member is engaged with the shaft hole of each substrate via the fulcrum shaft member, and the left end A shaft portion provided at the other end of the fixing clamp member on the side and a shaft portion provided at the other end of the movable clamp member are engaged with the regulation holes of the respective left end substrates, A shaft portion provided at the other end of the fixing clamp member on the right end side and a shaft portion provided at the other end of the movable clamp member are engaged with the restriction holes of the respective right end substrates, and the left end The shaft portion at the other end of the clamp member for fixing the side and the shaft portion at the other end of the clamp member for movement are engaged with each one end of the pair of equal length link members on the left end side, and the right end side The shaft at the other end of the clamp member for fixing and the shaft at the other end of the clamp member for movement are on the right. The other end of the pair of equal-length link members on the side is engaged with one end, the other end of the left-end-side equal-length link member is engaged with the elongated hole of the left-end side substrate via the engagement member, and the right-end side The other end of the isometric link member is engaged with the long hole of the board on the right end side via the engagement member. The sheet fixing / moving portion has an urging member, and each movable clamp member is urged toward the fixing clamp member to maintain the clamp closed state.

  The clamp opening / closing drive unit is attached to the main body member and drives the movable clamp members on the left end side and the right end side. For example, the clamp opening / closing drive unit overcomes the urging force of each of the sheet fixing and moving units against the movable clamp member and maintains the clamp open state. In this state, a plurality of sheets are bundled to obtain a sheet bundle. The sheet fixing / moving unit fixes and moves the sheet bundle independently of the clamp opening / closing driving unit.

  Therefore, the sheet bundle moving holder, the clamp opening / closing drive unit and the sheet fixing moving unit can be separated from each other, and the sheet bundle can be fixed and easily moved to the binding process by the sheet fixing moving unit mounted with the minimum necessary mechanical parts. It becomes like this.

The sheet processing apparatus according to the present invention includes a sheet fixing and moving mechanism that moves a sheet bundle obtained by bundling a plurality of sheets in a predetermined direction, and the sheet fixing and moving mechanism has a pantograph structure. The paper fixing and moving mechanism is movably attached to the main body member, and is provided with a paper fixing and moving part that easily fixes and moves the paper bundle independently of the clamp opening / closing drive part. is there.

This configuration, when the sheet bundle moving, and a clamp opening and closing drive unit and the sheet fixed mobile unit can be structured separate, secure the paper stack by the sheet fixing mobile unit that implements a minimum of mechanical parts stapling process or the like You can move easily to.

  In addition, the movement area (dead space) of the sheet fixing and moving unit is small, and the unit structure can be made small and simplified. In addition, the paper fixing and moving unit is not mounted with driving means such as a motor or electrical components such as a home position sensor, and the movement of these electrical components is not involved. The fixed moving mechanism can be simplified.

  Hereinafter, a sheet processing apparatus as an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a conceptual diagram illustrating a configuration example of a binding device 100 to which a paper processing device according to an embodiment of the present invention is applied.

  A binding device 100 shown in FIG. 1 constitutes an example of a paper processing device, and performs punch processing on recording paper (hereinafter simply referred to as paper 3) output from a copier or printing device, and each hole is punched at a predetermined position. The positions of the sections are aligned, and a plurality of sheets 3 are bundled to form a sheet bundle. In the binding device 100, the binding device 43 performs a binding process with a predetermined binding component (consumable item) 43 and discharges it.

  The binding device 100 has a device main body (housing) 101. The binding apparatus 100 is preferably used side by side with a copying machine, a printing machine (image forming apparatus), and the like, and the apparatus main body 101 has a height comparable to that of a copying machine, a printing machine, or the like.

  In the apparatus main body 101, a paper transport unit 10 that constitutes an example of a paper transport unit is provided. The paper transport unit 10 includes a first transport path 11 and a second transport path 12. The transport path 11 has a paper feed port 13 and a discharge port 14, and has a through-pass function for transporting the paper 3 drawn from the paper feed port 13 toward the discharge port 14 at a predetermined position.

  Here, the through-pass function means that the conveyance path 11 positioned between the upstream copying machine or printing machine and the downstream downstream sheet processing apparatus transfers the sheet 3 from the copying machine or printing machine to another sheet processing apparatus. A function that directly transfers When this through-pass function is selected, the later-described conveyance roller acceleration processing, binding processing, and the like are omitted. The sheet 3 is usually sent face down in the case of single-sided copying. A paper feed sensor 111 is attached to the paper feed port 13 to detect the leading edge of the paper 3 and output a paper feed detection signal S11 to the control unit 50.

  The transport path 12 has a switchback function capable of switching the transport path from the transport path 11. Here, the switchback function decelerates and stops the conveyance of the sheet 3 at a predetermined position in the conveyance path 11, and then switches the conveyance path of the sheet 3 from the conveyance path 11 to the conveyance path 12, and The function to send in the reverse direction. The conveyance path 11 is provided with a flap 15 so that the conveyance path is switched from the conveyance path 11 to the conveyance path 12.

  Three transfer rollers 17c, 19a 'and 19a are provided at a switching point between the transfer path 11 and the transfer path 12. The transport rollers 17c and 19a rotate clockwise, and the transport roller 19a 'rotates counterclockwise. For example, the transport roller 19a 'is a driving roller and the transport rollers 17c and 19a are driven rollers. The sheet 3 taken in by the transport rollers 17c and 19a 'decelerates and stops. However, when the flap 15 is switched from the upper position to the lower position, the paper 3 is fed by the transport rollers 19a' and 19a and transported to the transport path 12. The A paper detection sensor 114 is disposed in front of the three transport rollers 17c, 19a ′, 19a, and detects the front and rear ends of the paper and outputs a paper detection signal S14 to the control unit 50. .

  A punch processing unit 20 is disposed on the downstream side of the conveyance path 12. In this example, the conveyance path 11 and the conveyance path 12 are designed to have a predetermined angle. For example, a first depression angle θ <b> 1 is set between the conveyance surface of the conveyance path 11 and the sheet punching surface of the punch processing unit 20. Here, the paper perforated surface is a surface for perforating the paper 3. The punch processing unit 20 is disposed so as to set the sheet perforated surface at a position having a depression angle θ1 with respect to the transport surface of the transport path 11.

  The punch processing unit 20 switches back from the transport path 11 and punches two or more binding holes (hereinafter referred to as punch holes 3 a) at one end of the paper 3 transported by the transport path 12. The punch processing unit 20 includes, for example, a motor 22 that drives a punch blade 21 that can reciprocate. The sheets 3 are punched one by one by a punch blade 21 driven by a motor 22.

  An openable / closable fence 24 serving as a reference for the punching position is provided in the punch processing unit 20, and is used to apply the paper 3. Further, the punch processing unit 20 is provided with a side jogger 23 to correct the posture of the paper 3. For example, the front end of the sheet 3 is in contact with the openable / closable fence 24 evenly. The fence 24 serves as a position reference when aligning the sheet edge. A paper detection sensor 118 is disposed in front of the side jogger 23, and detects the front and rear edges of the paper and outputs a paper detection signal S18 to the control unit 50 (see FIG. 19).

  The punch processing unit 20 stops the sheet 3 by bringing it into contact with the fence 24, and then punches the leading end of the sheet 3. A punch residue storage 26 is provided below the punch processing body so as to store punch scraps cut off by the punch blade 21. A discharge roller 25 is provided on the downstream side of the punch processing unit 20 so as to convey the sheet 3 'after punching the sheet to the next stage unit.

  In this example, a sheet alignment & binding processing unit 110 that is made into one block is provided on the downstream side of the punch processing unit 20. The sheet aligning & binding processing unit 110 includes a binder sheet aligning unit 30, and aligns and temporarily holds (accumulates) the positions of the punch holes 3 a of a plurality of sheets 3 ′ discharged from the punch processing unit 20. It is made like.

The binder paper alignment unit 30 is disposed so as to set the paper holding surface at a position having the second depression angle θ2 with reference to the conveyance surface of the conveyance path 11. Here, the sheet retaining surface refers to a surface that retains (stacks) the sheet 3 ′ in which the punch holes 3 a are formed. In this example, the relationship between the depression angle θ1 and the depression angle θ2 is set to θ1 <θ2. The depression angle θ1 is set to 0 ° <θ1 <45 °, and the depression angle θ2 is set to 0 ° <θ2 <90 °. This setting is for reducing the width of the apparatus main body 101 and for conveying the sheet 3 ′ linearly under this condition (see FIG. 2).

  A discharge unit 60 is arranged on the downstream side of the sheet alignment & binding processing unit 110, and the booklet 90 created by the bind processing unit 40 is discharged. 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 90 falling from the binder paper alignment unit 30 and switches the sending direction. For example, the belt unit main body is turned in a predetermined discharge direction from a position where the binder paper alignment unit 30 can see the paper conveyance direction.

  The belt unit 62 receives the booklet 90 whose sending direction is switched by the belt unit 61 and relays it. The stacker 63 stores the booklet 90 conveyed by the belt units 61 and 62.

  FIG. 2 is a front view illustrating a configuration example of the sheet alignment & binding processing unit 110. A sheet alignment & binding processing unit 110 shown in FIG. 2 is mounted on the binding apparatus 100 shown in FIG. 1 and includes a binder processing unit mounting chassis 45 in addition to the binder paper alignment unit 30. Composed.

The chassis 45 has a predetermined shape as shown in FIG. 2 and supports the binder paper alignment unit 30 and the binding processing unit 40. For example, in FIG. 2, the left side of the top of the chassis 45 is closed, the lower is opened, the front is provided binder cassette loading area, and has a right end side and the rear side is closed box-shaped .

  At a predetermined position on the front surface of the chassis 45, a convex engaged portion 46 is provided at the lower portion and an engaged portion 47 is provided at the upper portion. A convex engaged portion 46 and an engaged portion 47 are provided, and the binder paper alignment unit 30 is supported on the left side surface of the chassis 45.

  The binder paper alignment unit 30 includes a main body substrate 900, and a right side frame 92a and a left end frame 92b having parallelogram shapes are provided on both side surfaces of the main body substrate 900 (see FIG. 7). The left end frame 92b is provided with, for example, a lower engaging groove portion 929 having a U shape, and similarly an upper engaging groove portion 930. A groove portion 929 for lower engagement is hooked on the convex engaged portion 46 of the chassis 45, and an upper engagement groove portion 930 is hooked and fixed on the convex engaged portion 47, and the binder paper is aligned. The unit 30 and the bind processing unit 40 are integrated.

  Further, in the binder paper alignment unit 30, the area surrounded by the right end frame 92a, the left end frame 92b, and the main body substrate 900 is component mounting areas II and III for mounting various mechanical components. In this example, a clamp moving mechanism 80 that constitutes an example of a sheet fixing and moving mechanism is disposed on a boundary that divides the component mounting regions II and III, in this example, on a diagonal line of a left end frame 92b having a parallelogram shape. The clamp moving mechanism 80 is configured to move the sheet bundle 3 ″ obtained by stacking the sheets 3 ′ after the sheet punching by the clamp member and move in the sheet conveying direction.

This on the right side of the component mounting area III the mounting position with respect to the clamp movement mechanism 80, the paper curl pressing mechanism 31 and the paddle Carlo over La 37 is disposed. The paper curl pressing mechanism 31 is disposed in the vicinity of the paper entrance in the unit 30 and guides the paper 3 ′ to a predetermined position (paper holding unit 32, etc.) of the binder paper alignment unit 30 when the paper enters, and the paper entry is completed. Sometimes the rear end side of the sheet 3 'is pressed. The binder paper alignment unit 30 has a paper front end and end width alignment function. In this example, the unit 30 is provided with a multi-tubular rotating member (hereinafter referred to as a paddle roller 37), and when the paper enters, the front end of the paper 3 'is brought into contact with the reference position, and the side edge portion is brought closer to the width. It is made to align the sheet bundle. A handle-type clamp lever 840 shown in FIG. 2 is used when releasing the clamp (see FIG. 22).

An alignment pin drive mechanism 91 is disposed in the left component mounting region II with respect to the clamp moving mechanism 80 described above, and the sheet bundle 3 ″ is realigned using the punch holes 3a formed in the sheet 3 ′. A bind processing unit 40 is arranged on the downstream side of the alignment pin driving mechanism 91 described above, and a booklet 90 is formed by binding a plurality of sheet bundles 3 ″ aligned by the binder sheet alignment unit 30 with the binding component 43. Is made to create. The booklet 90 is a sheet bundle 3 ″ in which the binding component 43 is fitted and bound.

The binding processing unit 40 includes a binder cassette 42 to which a binding component 43 is mounted and a binding processing moving mechanism 41. The moving mechanism 41 operates to reciprocate between the transport direction of the paper transport path I of the binder paper alignment unit 30 and the position orthogonal to the transport direction of the transport path 11 described above. The binding processing unit 40 includes a binder (binding component) cassette 42. A plurality of binding components are set in the binder cassette 42. The binding component 43 is, for example, injection molded, and a plurality of types are prepared according to the thickness of the sheet bundle 3 ″.

  In addition, a binding mechanism moving mechanism 41 is attached to the front lower portion of the chassis 45. In this example, the width of the lower portion of the front surface of the chassis 45 is reduced as it proceeds downward. In this portion, an arc-shaped long hole guide portion 441 and a long hole guide portion 442 and a U-shaped bearing portion 401 are provided.

  In this example, a moving mechanism rotating shaft 41d, a guide projection 48, and a drive shaft regulating gear shaft 49 are provided at predetermined positions of the moving mechanism 41. The moving mechanism rotation shaft 41d is movably engaged with the above-described bearing portion 401, the protrusion 48 is engaged with the long hole guide portion 441, and the gear shaft portion 49 is movably movable with the long hole guide portion 442. Engaged. At the time of binding processing, the moving mechanism 41 operates along the long hole guide portions 441 and 49 while being regulated in an arc shape indicated by an arrow Y in the drawing with reference to the moving mechanism rotating shaft 41d.

On the other hand, the clamp moving mechanism 80 includes roller members 817 and 818 on both sides of the lower tip, and the moving mechanism 41 includes Y-shaped openings 44a and 44b on both sides of the upper tip. In this example, when the binding component 43 is bound, only the paper fixing moving portion 880 of the clamp moving mechanism 80 falls by its own weight, and the roller member 817 is fitted into the Y-shaped opening 44a in a self-aligning manner. The roller member 818 is fitted into the Y-shaped opening 44b. As described above, the roller members 817 and 818 are fitted into the Y-shaped openings 44 a and 44 b, so that the moving mechanism 41 is connected in a straight line, and the center position of the sheet bundle 3 ″ is the center position of the binding component 43. It is structured to be guided by.

  The moving mechanism 41 pulls out and holds one binding component 43 from the binder cassette 42, and in this state, rotates to a position where the paper conveyance direction I of the binder paper alignment unit 30 can be seen. At this position, the moving mechanism 41 receives from the binder paper aligning unit 30 the sheet bundle 3 ″ in which the punch holes 3a are aligned, and inserts the binding component 43 into the punch holes 3a (see FIG. 3) for binding processing. Is executed (automatic bookbinding function).

  Next, a paper processing method according to the present invention will be described. 3A to 3D are process diagrams illustrating an example of functions of the binding device 100. FIG.

  The sheet 3 shown in FIG. 3A is fed from the upstream side of the binding device 100. The punch hole 3a is not opened. The sheet 3 ′ is transported toward a predetermined position on the transport path 11 illustrated in FIG. 1, 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, 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. 3B, a predetermined number of binding holes are formed at one end of the sheet 3 ' . The sheet 3 ′ on which the binding punch holes 3 a are formed is conveyed to the binder sheet aligning unit 30. In the binder paper alignment unit 30, when the number of sheets 3 ′ reaches a preset number of sheets and becomes the sheet bundle 3 ″ shown in FIG. 3C, the position of the binding punch holes 3 a is aligned, and the binding processing unit 40 The binding component 43 is inserted into the punch hole 3a in cooperation with each other, whereby a booklet 90 as shown in Fig. 3D through which the binding component 43 is inserted can be obtained.

  FIG. 4 is a perspective view showing a configuration example of the binder paper alignment unit 30 and shows a state where the shutter 83 is opened. FIG. 5 is a perspective view showing a configuration example of the paper curl pressing mechanism 31 and the peripheral mechanism.

  The binder sheet aligning unit 30 shown in FIG. 4 aligns and stacks the punch holes 3a of the sheet bundle 3 ″ by bringing a plurality of sheets 3 ′ conveyed by the sheet conveying unit 10 shown in FIG. The binder paper alignment unit 30 includes a paper storage unit 32. The binder paper alignment unit 30 includes a paper curl pressing mechanism 31 in the vicinity of the paper entrance.

  The paper curl pressing mechanism 31 guides the paper 3 'to the paper holding unit 32 when the paper enters, and presses the rear end side of the paper 3' when the paper entrance is completed. The paper holding unit 32 accumulates the paper 3 'and temporarily holds it.

  A shutter 83 is provided in the vicinity of the paper exit of the paper storage unit 32, and the paper bundle conveyance path I is closed when the paper bundle is aligned. On the inner side of the shutter 83 (on the paper storage portion 32 side), the clamp member including the movable upper arm 801b and the fixing lower arm 801a of the clamp moving mechanism 80 is opened, and the paper 3 'is bundled in this state. When the paper is carried out, the shutter 83 is opened, and the paper bundle is sandwiched between the upper arm 801b and the lower arm 801a and carried out to the next process.

Paper curl pressing mechanism 31 shown in FIG. 5, which was taken out of the binder paper alignment unit 30 shown in FIG. 4, the curl fence unit 34a, 34b, rear guide portion (Implementation Guide) 304a, 304b (see Figure 4) and Curl guide portions (running guides) 305a, 305b and the like are provided.

  Curl fence sections 34a and 34b are provided on the left and right sides of the sheet storage section 32 near the sheet entrance. The curl fence portions 34a and 34b operate to press the rear end side of the sheet 3 'guided by the rear guide portions 304a and 304b and the curl guide portions 305a and 305b and receive the leading end portion of the next sheet 3'.

  The left and right curl fence portions 34 a and 34 b are attached to a power transmission shaft (curl fence shaft) 307. A motor 301 is attached to one end of the power transmission shaft 307 via a reduction gear 309. The motor 301 constitutes an example of a drive unit, and rotates the curl fence units 34a and 34b in a predetermined direction.

  The curl fence part 34a includes a disk-shaped rotating main body part 341 and a plurality of protrusions 342. The rotation main body 341 has a shaft portion 341a. A power transmission shaft 307 is attached to the shaft portion 341a. For example, four protrusions 342 are arranged at 90 ° intervals on the circumferential portion of the rotating main body 341. Each protrusion 342 has a shape protruding in a direction parallel to the shaft portion 341a. When the curl fence portion 34a is configured in this manner, the curled paper 3 'can be pressed by the protrusion 342 during temporary holding of the paper alignment.

  For example, the protruding portion 342 circulates upward every time the paper enters, so that a state where the curled portion of the paper 3 'being stacked can be pressed can be maintained. Note that the structure and function of the curl fence part 34b are configured in the same manner as the curl fence part 34a and function in the same manner, and thus description thereof is omitted.

  Rear guide portions 304a and 304b are provided in the vicinity of the left and right curl fence portions 34a and 34b (see FIG. 4). The rear guide portions 304a and 304b guide the leading end portion of the sheet 3 'entering the binder sheet aligning unit 30 in a predetermined direction.

  The above-described rear guide portions 304a and 304b have a spatula-shaped projecting piece (not shown) and a rotatable structure. With this rotating structure, the sheet 3 ′ can be guided to the position close to the protruding portion 342, and even when the curled sheet 3 ′ has entered, a situation of crashing into the protruding portion 342 can be prevented. The jam caused by this collision can be prevented.

  Curl guide portions 305a and 305b are provided below the power transmission shaft 307 connecting the curl fence portions 34a and 34b (see FIG. 4). The curl guide portions 305 a and 305 b guide the paper 3 ′ guided by the rear guide portions 304 a and 304 b to the paper storage portion 32. The curl guide portions 305 a and 305 b have a structure that is fixed at a position away from the paper alignment surface of the paper storage portion 32. For example, the curl guide portions 305a and 305b are fixed to a pair of guide support bars 303a and 303b that are passed to the left and right of the sheet entrance.

  An upper guide 310 is attached to the guide support bar 303b to hold the rear end portion of the sheet 3 'and guide it to the sheet holding section 32. The curl guide portions 305a and 305b are, for example, injection-molded products made of resin, and the bottom portion has an arcuate R surface when viewed from above. Of course, the curl guide portions 305a and 305b may be made of sheet metal. The size is about 20 mm to 30 mm in width and about 60 mm to 80 mm in length. The height is about 8 mm to 10 mm. In this way, when the curled paper 3 'enters, the force that the paper 3' tries to lift can be relaxed, and jamming caused by the entrance of the curled paper 3 'can be prevented.

  The above-described rear guide portion 304a is engaged with a cam 311 that is interlocked with the curl fence portion 34a. When the paper entry is completed, the cam 311 is driven to retract from the rotation trajectory of the curl fence portion 34a. For example, the cam 311 of the rear guide part 304a is coupled by followering, and is interlocked with the rotation of the curl fence part 34a. In this way, the curl fence part 34a rotates and the rear guide part 304a also rotates, so that when the paper entry is completed, the curl fence part 34a can be prevented from retracting and interfering with the protrusions.

  In addition, since the rear guide portion 304a is rotatable, a guide can be formed up to the vicinity of the protruding portion 342, and jamming can be prevented. In addition, regarding the cam 311 and the follower ring, the curl fence part 34b is configured in the same manner as the curl fence part 34a and functions in the same manner, and thus the description thereof is omitted.

  At the other end of the power transmission shaft 307, a disk 307a having a predetermined shape for detecting the curl fence home position (four-leaf shape in this example) is attached. A sensor for detecting a curl fence home position (hereinafter referred to as an HP sensor 117) is provided at a position engaged with the disk 307a. The HP sensor 117 detects a stop position of the curl fence portions 34a and 34b rotated by the motor 301. A transmissive optical sensor (light emitting and light receiving element) is used for the HP sensor 117.

  A side jogger 70 (width-adjusting mechanism) as shown in FIG. 5 is provided inside the paper carry-out port of the paper holding unit 32 shown in FIG. 4, and the width from one side of the paper bundle 3 ″ is aligned when the paper bundle is aligned. The width of the sheet 3 ′ is aligned by pressing the shifting member (first pre-alignment process) The first pre-alignment process is a sheet end alignment process that aligns the side edges of the sheet 3 ′. is there.

In this example, an alignment pin driving mechanism 91 (see FIG. 7) is provided on the downstream side of the side jogger 70, that is, in the vicinity of the paper carry-out port of the unit main body, and the punch hole 3a opened in the paper 3 ′ is used. Then, the sheet bundle 3 ″ is realigned (second pre- alignment process). The second alignment process is a sheet front end alignment process for realigning the front end of the sheet 3 ′. The width adjusting member 70 is retracted to both sides of the sheet bundle 3 ″. This is to provide a margin for the sheet bundle conveyance path I.

  In addition to the side jogger 70, a feeding roller 33 (not shown) and a press roller 38 (see FIG. 4) are arranged inside the paper carry-out port of the paper holding unit 32, and the paper bundle 3 ″ is used in the next process. When discharging, the sheet bundle 3 ″ is pressurized from the front and back.

  A shutter 83 is provided at the sheet carry-out port, and operates to open and close the sheet bundle conveyance path I. For example, when the shutter 83 is opened, the sheet bundle 3 ″ is conveyed (discharged) along the sheet bundle conveying path I by the feeding roller 33 and the press roller 38 described above. If the rollers are configured, even when the sheet bundle 3 ″ is not bound by the binding component 43, the sheet bundle 3 ″ can be carried out to the next process while maintaining the bundle state.

  FIG. 6 is a perspective view illustrating a configuration example of the side jogger 70 in the binder paper alignment unit 30.

  In this example, the side jogger 70 includes a width adjusting reference guide 72b that serves as an end face reference of the sheet 3 ′ and a width adjusting guide 72a that presses the sheets 3 ′ one by one against the width adjusting reference guide 72b in the sheet width direction. They are arranged so as to face each other, and the width adjusting guide 72a and the width adjusting reference guide 72b are both driven independently. The side jogger 70 is arranged so that, for example, the sheets 3 ′ are aligned one by one and pressed to the reference side. Thereby, the width of the paper 3 ′ temporarily held in the binder paper alignment unit 30 can be aligned.

  The side jogger 70 shown in FIG. 6 is provided in the binder paper alignment unit 30 shown in FIG. The side jogger 70 includes a main body casing 71, a width alignment guide 72a, a width alignment reference guide 72b, rails 73a and 73b, motors 74a and 74b, and moving stages 75a and 75b.

  The main body casing 71 has an upper surface portion and a back surface portion. The main body casing 71 is formed in a box shape by bending an iron plate. The upper surface portion of the box-shaped body is open. In this example, the back surface portion of the main body casing 71 is a motor attachment region. The upper surface portion is a moving stage region.

  In the moving stage area, a width adjusting guide 72a, a width adjusting reference guide 72b, rails 73a and 73b, and moving stages 75a and 75b are arranged. For example, rails 73a and 73b are installed between both wall surfaces inside the main body casing 71 so as to bridge. The rails 73a and 73b are attached so as to fix the two round bars at positions passing through the right and left ends of the main body casing 71. A pair of moving stages 75a and 75b are engaged with the rails 73a and 73b so as to be movable left and right.

  The moving stages 75a and 75b are made of, for example, resin molded parts. The moving stages 75a and 75b are provided with openings (not shown) penetrating left and right, and rails 73a and 73b are provided in the openings. Passed. Of course, the present invention is not limited to a mode in which the rails 73a and 73b are passed through the openings, and a mode in which driving wheels are attached to the moving stages 75a and 75b and the rails 73a and 73b are traveled may be employed.

A width adjusting reference guide 72b is attached to the upper left end of the moving stage 75b, and a width adjusting guide 72a is attached to the upper right end of the moving stage 75a. As the width adjusting guide 72a and the width adjusting reference guide 72b, for example, an iron plate bent into a deformed U shape is used. The width adjusting guide 72a and the width adjusting reference guide 72b are wide on the upstream side and narrow on the downstream side. This is because the curled sheet 3 ′ is guided to the front end of the sheet holding unit 32 with good reproducibility.

  The upstream side of the width aligning guide 72a and the width aligning reference guide 72b has a shape (flap) in which the upper end is raised for paper guidance, and the lower end has a shape that hangs in the opposite direction. These shapes are provided to guide the sheet 3 ′ sent from the punch processing unit 20 to the clamp moving mechanism 80 together with the paddle roller 37.

  In addition, motors 74 a and 74 b are attached to the motor attachment region provided in the rear portion of the main body casing 71. Stepping motors are used for the motors 74a and 74b, respectively. In the motors 74 a and 74 b, the motor rotation shafts are provided so as to penetrate from the back surface portion to the top surface portion of the main body housing portion 71.

  In this example, driven pulleys 77 a and 77 b are attached to the upper surface portion of the main body casing 71. An endless belt 78a is engaged between the belt driving pulley 76a and the driven pulley 77a. Similarly, an endless belt 78b is engaged between the belt driving pulley 76b and the driven pulley 77b.

By engaging a part of the belts 78a and 78b with the moving stages 75a and 75b so that the above-described moving stages 75a and 75b are driven by the belt, the width adjusting guide 72a and the width adjusting reference guide 72b are moved in the sheet conveying direction. It can be set as the structure which can move in the direction orthogonal to.

  FIG. 7 is a perspective view illustrating a configuration example of the alignment pin driving mechanism 91. The alignment pin drive mechanism 91 shown in FIG. 7 is extracted from the bind paper alignment unit 30 shown in FIG. 4, and realigns the sheet bundle 3 ″ with the punch holes 3a opened on the basis of the punch holes 3a. 7 is in a state of being clamped by the clamp moving mechanism 80 via the upper shaft 803 and the lower shaft 804 before pin alignment.

  The alignment pin drive mechanism 91 is provided on the main body substrate 900 which becomes the base of the binder paper alignment unit 30 and the base of the clamp moving mechanism 80, and includes alignment pins 85a and 85b, a motor 89, an alignment pin home position sensor (hereinafter, HP detection sensor). 93) and an alignment pin upper end detection sensor (hereinafter referred to as upper end detection sensor 94).

On each side of the main body substrate 900, a right end frame 92a (a casing for the right end side surface) and a left end frame 92b (a casing for the left end side surface) having a predetermined shape are provided. In this example, the right end frame 92a has two sliding grooves 931 and 922, and the left end frame 92b has two sliding grooves 932 and 924. A paper fixing moving unit 880 shown in FIG. 10 is attached to these sliding grooves 921 to 924 so as to be movable in the paper transport direction I. The sheet fixing and moving unit 880 moves to the downstream side independently from the clamp opening / closing drive unit 881 (see FIG. 10) attached to the main body substrate 900 and the left and right end frames 92a and 92b.

  In this example, the main body substrate 900 is formed by bending an iron plate, and is attached so as to support the right end frame 92a and the left end frame 92b. The right end frame 92a and the left end frame 92b are provided with motor attachment areas, the right end frame 92a is provided with an attachment area for the clamper 82a, and the left end frame 92b is provided with an attachment area for the clamper 82b.

  A V groove 925 is provided at a predetermined position of the right end frame 92a shown in FIG. 7, and a V groove 926 is also provided at a predetermined position of the left end frame 92b. In this example, at the time of sheet bundle alignment, the lower shaft 804 of the right end side lower arm 801a is engaged with the V groove portion 925, and the lower shaft 804 of the left end side lower arm 801a is engaged with the V groove portion 926. When the sheet bundle is moved, the lower shaft 804 of the right end side lower arm 801a is detached from the V groove 925, and the lower shaft 804 of the left end side lower arm 801a is detached from the V groove 926.

  In this way, the left and right lower arms 801a can be in a restrained state when the paper bundle is aligned, and the lower arms 801a can be in an unconstrained state when the paper bundle is moved. Moreover, since the sheet bundle 3 ″ is separated from the bottom of the sheet bundle conveyance path I of the binder sheet aligning unit 30 when the sheet bundle is moved, the sheet bundle 3 ″ when guiding to the predetermined binding position (center) of the bind processing unit 40 Bending can be relaxed. As a result, it is possible to prevent the sheet bundle 3 ″ from being scratched and pained, and the sheet shift.

  Further, a motor 89 for alignment pins is attached to the main body substrate 900, and the alignment pins 85a and 85b are driven up and down. A DC motor is used as the motor 89. A reduction gear 98 (gear unit) is engaged with the motor 89 to convert the motor rotation speed into a predetermined reduction ratio. An up / down rack member (hereinafter referred to as a UD rack 95) is engaged with the reduction gear 98 and moves up and down based on a rotational force converted into a predetermined reduction ratio.

One end of a plate 97 having a predetermined shape is joined to one end of the UD rack 95. Arms 99a and 99b having a predetermined shape are engaged with the other end of the plate 97 with a common rotating shaft. Arms 99a, 99b are pivotally supported to the center rotational shaft, open to the X-shaped with respect to the rotation axis of the foregoing, made or closed Maichimonji (see FIGS. 8 and 9).

  In this example, one end of each of the arms 99a and 99b is engaged with a predetermined position of the main body substrate 900 so as to be rotatable and slidable. A link 96 having a predetermined shape is engaged with the other ends of the arms 99a and 99b so as to be rotatable and slidable. The link 96 has, for example, an inverse π shape, and the other end of the arm 99a is rotatably and slidably engaged with one end of the inverse π shape, and the other end of the arm 99b is freely rotatable with the other end. And it is slidably engaged.

  An alignment pin 85 a is engaged with one end of the link 96, and an alignment pin 85 b is engaged with the other end of the link 96. The alignment pins 85a and 85b constitute an example of an alignment bar, and are arranged to align the punch holes 3a of a plurality of sheet bundles 3 ″ temporarily retained in the sheet retaining portion 32. For example, the alignment pins 85a. , 85b are penetrated through two predetermined punch holes 3a of the sheet 3 ′ (see FIG. 3a).

An HP detection sensor 93 is attached to a predetermined position of the left end frame 92b, detects the home position (lower end) position of the alignment pins 85a and 85b, and outputs a pin HP detection signal S93. In the left end frame 92b, an upper end detection sensor 94 is attached at a predetermined position above the HP detection sensor 93, and detects the upper end positions of the alignment pins 85a and 85b and outputs an upper end detection signal S94 (FIG. 19). When the alignment pin driving mechanism 91 is configured in this way and the motor 89 is rotated, the alignment pins 85a and 85b can be driven up and down.

  Next, an operation example of the alignment pins 85a and 85b in the alignment pin drive mechanism 91 will be described. FIG. 8 is a perspective view showing an operation example of the alignment pin drive mechanism 91 before penetrating the pins. In the drawing, the right end frame 92a, the left end frame 92b, the shutter 83, and the main body substrate 900 are omitted for clarity.

In FIG. 8, the alignment pins 85a and 85b positioned at the home position (HP) are retracted to the outside of the sheet bundle conveyance path I during the sheet alignment operation. The HP detection sensor 93 detects the home position of the alignment pins 85a and 85b and outputs a pin HP detection signal S93 to the control unit 50.

FIG. 9 is a perspective view showing an operation example at the time of pin penetration in the alignment pin drive mechanism 91. 9, when performing pin alignment, with opened clamp member movable (upper arm 801b), the clamp member (lower arm 801a) aligned from the side pin 85a for fixing, 85b protrudes. For example, at the home position HP shown in FIG. 8, when the motor 89 is turned on and the motor rotates in the clockwise direction, the reduction gear 98 rotates in the clockwise direction. When the reduction gear 98 rotates in the clockwise direction, the UD rack 95 moves in the up direction.

  When the UD rack 95 moves in the up direction, the rotating shafts of the arms 99a and 99b in the closed posture are pulled up in the up direction. When the rotating shafts of the arms 99a and 99b are pulled up, the arms 99a and 99b open in an X shape. The link 96 is pulled up by opening the arms 99a and 99b in an X shape. When the link 96 is pulled up, the alignment pins 85a and 85b are pulled up in the up direction. As a result, the alignment pins 85a and 85b pass through the punch holes 3a of the sheet bundle 3 ″. The upper end detection sensor 94 detects the upper end positions of the alignment pins 85a and 85b and outputs an upper end detection signal S94 to the control unit 50. Thereby, the alignment pins 85a and 85b can be inserted into the punch holes 3a to align the sheet bundle 3 ″.

  FIG. 10 is a perspective view showing a configuration example of the clamp moving mechanism 80 as the first embodiment in the binder paper aligning unit 30.

  In this example, after the sheet bundle 3 ″ is aligned, the clamp moving mechanism 80 moves only the sheet fixing and moving unit 880 to the binding process for each sheet bundle. The clamp moving mechanism 80 shown in FIG. An example of the sheet fixing and moving mechanism is configured, and includes a main body substrate 900, a shutter 83, comb-type pressing members 84a and 84b, a sheet fixing and moving unit 880, and a clamp opening / closing driving unit 881.

  The sheet fixing / moving unit 880 and the clamp opening / closing drive unit 881 have an independent structure. In this example, the paper fixing movement unit 880 and the clamp opening / closing drive unit 881 are engaged when the paper bundle is aligned, and the paper fixing movement unit 880 and the clamp opening / closing driving unit 881 are separated when the paper bundle is moved. This is so that the sheet fixing moving unit 880 can drop its weight onto the bind processing unit 40 in a state where the sheet bundle 3 ″ is fixed.

  The sheet fixing moving unit 880 is movably attached to the right end frame 92a and the left end frame 92b on both sides of the main body substrate 900, and holds and fixes the sheet bundle 3 ″ independently of the clamp opening / closing drive unit 881. The sheet fixing and moving unit 880 includes a clamp member on the right end side (hereinafter simply referred to as a clamper 82a) and a clamp member on the left end side (hereinafter simply referred to as a clamper 82b). , 82b have a lower arm 801a, which is an example of a fixing clamp member, and an upper arm 801b, which is an example of a movable clamp member, and the upper arm 801b is movable in the vertical direction.

  For example, the lower arm 801a and the upper arm 801b are respectively arranged on the left end side and the right end side of the binder paper aligning unit 30, and the upper arm 801b is driven for each sheet or a plurality of sheets when aligning the sheet bundle for aligning the sheets 3 ′. And then close. In this way, the curl of the sheet 3 'can be corrected. The sheet fixing and moving unit 880 also moves the sheet bundle 3 ″ when the sheet bundle is moved. In this example, when the sheet bundle is aligned, the fixing of the sheet bundle 3 ″ is released and the pins are aligned. Then, the end of the sheet bundle 3 ″ on the punch hole side is fixed and moved from the sheet curl pressing mechanism 31 to the downstream side in the sheet conveyance direction.

  In this example, at the time of sheet bundle alignment, the upper arm 801b stops to an arbitrary intermediate position that is wider than the thickness of the sheet bundle 3 ″ and smaller than the height of the sheet bundle conveyance path I, and the alignment pins 85a and 85b are at the upper ends. It waits at this position until it detects that the upper end position is detected by the detection sensor 94. The clamper 82b on the left end side is similarly configured.

  In the sheet fixing and moving unit 880, a spring spring 816 constituting an example of an urging member is attached between the lower arm 801a and the upper arm 801b, and urges the upper arm 801b toward the fixed lower arm 801a when aligning the sheet bundle. Thus, the clamp closed state is maintained. When the sheet bundle is moved, the sheet bundle 3 ″ is held by always energizing in the closing direction.

  A joint plate 801 with a restriction hole, which is an example of a clamp mounting substrate, is attached to the clamper 82a provided on the right end side of the main body substrate 900 described above. The joint plate 801 has a sharp pointed tip shape (tip tip shape), a shaft hole 807a at one end, and a long hole 808a at a predetermined position at the other end. The joint plate 801 further has elongated restriction holes 806a and 806b for restricting the opening and closing of the clamp.

  The clamper 82a includes a lower arm 801a and an upper arm 801b. A lower shaft 804 is movably attached to one end of the lower arm 801a. An upper shaft 803 is movably attached to one end of the upper arm 801b.

  The clamper 82b on the side facing the clamper 82a is provided with a joint plate 802 having a similar sword tip shape, having a shaft hole 807b at one end thereof, and having a long hole 808b at a predetermined position at the other end. ing. The other ends of the left end lower arm 801a and upper arm 801b are engaged with shaft holes 807b of a joint plate 802 with restriction holes, and the other ends of the right end lower arm 801a and upper arm 801b are joint plates with restriction holes. A fulcrum shared by one end of the lower arm 801a and one end of the upper arm 801b is movably engaged via a fulcrum shaft member 805 on the left and right ends.

  A lower shaft 804 provided at the other end of the right end side lower arm 801a is connected to a long hole-like restricting hole 806a. Similarly, an upper shaft 803 provided at the other end of the right end side upper arm 801b is provided as a long hole. It connects with the shape control hole 806b. Although not shown, a lower shaft 804 provided at the other end of the left end side lower arm 801a is engaged with a restriction hole 806a of the joint plate 802 and similarly provided at the other end of the left end side upper arm 801b. The upper shaft 803 is connected to the restriction hole 806b of the joint plate 802.

  In this example, the joint plates 801 and 802 on the left and right end sides are assembled so that the end portions of the lower shaft 804 are exposed in the respective restriction holes 806a and the end portions of the upper shaft 803 are exposed in the restriction holes 806b. It is done. Accordingly, the upper shaft 803 and the lower shaft 804 are movable in the direction perpendicular to the sheet conveyance direction (hereinafter referred to as the clamp opening / closing direction) through the restriction holes 806a and 806b by the joint plate 801 on the right end side. Even in the joint plate 802 on the left end side, the upper shaft 803 and the lower shaft 804 are movable in the clamp opening / closing direction by means of the long-hole-shaped regulation holes 806a and 806b.

  In the clamper 82b, the same components as the clamper 82a are formed in the same manner as the right end side, and the description thereof is omitted. The clamper 82b and the clamper 82a are movably engaged at the rear end by the fulcrum shaft member 805 described above, and at the front end, the upper shaft 803 and the lower shaft 804 are connected to the joint plates 801 and 802 with restriction holes. It is movably engaged.

Further, the clampers 82a and 82b have a structure that moves to the downstream side along the sheet bundle conveying path I while holding the sheet bundle 3 ″ with respect to the main body substrate 900. For example, as shown in FIG. A predetermined portion of the clamp moving mechanism 80 is movably engaged with the two sliding grooves 931 and 922 of the right end frame 92a and the two sliding grooves 932 and 924 of the left end frame 92b, and the four sliding grooves 931 are movable. , 922 , 932 , 924, the clamp moving mechanism 80 is moved downstream, thereby moving the clamp moving mechanism 80 downstream relative to the main body substrate 900, the left and right end frames 92 a, 92 b, etc. become able to.

  The clamp opening / closing drive unit 881 is attached to the main board 900 shown in FIG. 7 or the right end frame 92a or the left end frame 92b located on both sides thereof, and drives the left end side and right end side upper arms 801b. For example, the clamp opening / closing drive unit 881 includes a motor 86 for opening the upper arm 801b, cams 87a and 87b, and a gear unit 88. When the sheet bundle is aligned, the upper arm 801b is predetermined with respect to the lower arm 801a. Is pushed (moved) to the position of 2 to release the sheet bundle 3 ″. The cams 87a and 87b have two different-diameter arcs (curved portions) having different radii and a projection-like shape between the different-diameter arcs. It has a deformed elliptical shape (see FIG. 23).

  In this example, the clamp opening and closing drive unit 881 overcomes the urging force of the spring spring 816 shown in FIG. 10 with respect to the upper arm 801b of the paper fixing and moving unit 880 and maintains the clamp open state. In this way, it is possible to align the sheet bundle 3 ″ with the sheet fixing and moving unit 880 opened.

  The clamp opening / closing drive unit 881 operates so that the alignment pin driving mechanism 91 starts to penetrate the alignment pins 85a and 85b into the punch holes 3a of the sheet 3 'and simultaneously starts to move the upper arm 801b relative to the lower arm 801a. In this way, the frictional resistance between the sheets can be reduced. Further, by setting the retracted position of the upper arm 801b relative to the lower arm 801a to the intermediate position, the sheet 3 'can be aligned without being lifted by the alignment pins 85a and 85b, so that the state of the sheet 3' Variations can be reduced. Here, the intermediate position refers to a position between the clamp closed position and the clamp fully opened position.

  The motor 86 of the clamp opening / closing drive unit 881 is attached to a motor attachment region provided inside the left end frame 92b shown in FIG. The motor 86 is engaged with the gear unit 88, converts the motor rotational speed by a predetermined gear ratio, and transmits the motor rotational force to the cams 87a and 87b. One cam 87 b is attached to the gear unit 88. The cam 87b is attached to the other cam 87a via a cam interlocking member 819.

  The upper arm 801b of each clamper 82a and 82b has a roller 826 for opening and closing the clamp. Each roller 826 forms a cam action portion, is engaged with the cams 87a and 87b, receives power from the clamp opening / closing drive unit 881, and opens the upper arm 801b.

  For example, when the sheet bundle is aligned, the motor 86 is driven by the clamp opening / closing drive unit 881, and the cams 87 a and 87 b are driven via the gear unit 88. The cam 87a presses the roller 826 of the right upper arm 801b to release the right end clamper 82a, and the cam 87b presses the roller 826 of the left end upper arm 801b to open the left end clamper 82b. In this example, a clamp opening and closing operation is performed by bringing the roller 826 into contact with the cams 87a and 87b in cooperation with the spring spring 816.

  When the sheet bundle is moved (binding process), the cams 87a and 87b are driven to be retracted from the roller 826, and the upper arm 801b is closed by the spring spring 816 to hold the sheet bundle 3 ″. In this case, since the roller 826 of the paper fixing and moving unit 880 and the cams 87a and 87b of the clamp opening / closing drive unit 881 are not fitted, the clampers 82a and 82b move to the bind processing unit 40 while holding the paper bundle 3 ″. You can move. As a result, the respective clampers 82a and 82b are opened and closed synchronously.

  At the time of sheet bundle alignment, the sheet fixing moving unit 880 and the clamp opening / closing drive unit 881 are connected by the roller 826 and the cams 87a and 87b, and at the time of sheet bundle movement (binding processing), it is separated from the clamp opening / closing drive unit 881 and clamper 82a. , 82b are always closed, so that the state of holding the sheet bundle 3 ″ can be maintained. That is, when the sheet fixing and moving unit 880 is separated from the clamp opening / closing drive unit 881, the sheet bundle 3 ″ is held. The fixed state can be maintained, and the weight can be dropped to the bind processing unit 40 in this state.

  An alignment pin driving mechanism 91 shown in FIG. 7 is provided on the lower arm 801a side. The clamp opening / closing drive unit 881 closes the upper arm 801b with respect to the lower arm 801a and closes the sheet bundle in a state where the alignment pin driving mechanism 91 passes through the punch holes 3a of the sheet bundle 3 ″ when the alignment pin driving mechanism 91 is aligned. 3 ”is fixed. In this way, the sheet bundle 3 ″ can be surely aligned when the sheet bundle is aligned.

  In addition, a shutter 83 is movably attached to the front surface of the main body substrate 900, and operates to limit the discharge of the sheet bundle 3 ″ accumulated in the sheet holding unit 32. The shutter 83 conveys the sheet bundle 3 ″. It is made to drive up and down in a direction orthogonal to the direction. Slide guide members 811 and 812 are provided on both sides of the shutter 83, and the shutter 83 slides along the slide guide members 811 and 812. In this example, when the clampers 82a and 82b open the sheet bundle 3 ″ in the freely open state, the natural falling of the sheet bundle 3 ″ can be stopped by closing the shutter 83.

  The shutter 83 is attached to a solenoid via a drive shaft (not shown), and opens and closes the shutter 83 by a reciprocating motion. Of course, the present invention is not limited to this, and the shutter 83 may be opened and closed by converting the rotational motion of a motor (not shown) into a reciprocating motion.

  Further, an alignment pin driving mechanism 91 is provided inside the front surface portion of the main body substrate 900, and the alignment pins 85a and 85b are driven up and down. In this example, before the binding process, the alignment holes 85a and 85b are passed through the punch holes 3a of the sheet bundle 3 '' to realign the positions. The tips of the alignment pins 85a and 85b are conical. For example, the sheet bundle 3 ″ is sandwiched and held between the upper pressing member 84a and the lower pressing member 84b before inserting the alignment pins 85a and 85b as shown in FIG. Is done.

  11A is a top view illustrating a configuration example of the comb-shaped presser members 84a and 84b, and FIG. 11B is a cross-sectional view taken along arrow X1-X1 illustrating the alignment pins 85a and 85b of the alignment pin driving mechanism 91 before insertion. 11C is a cross-sectional view taken along arrow X1-X1 showing the alignment pins 85a and 85b after insertion.

  In this example, the comb-shaped upper pressing member 84b shown in FIG. 11A is attached to the upper shaft 803 shown in FIG. 10, and the lower pressing member 84a of the same type is attached to the lower shaft 804. The comb-shaped upper pressing member 84b has a comb tooth portion cut into a U shape. The arrangement pitch of the comb teeth portion is equal to the arrangement pitch of the punch holes 3a of the sheet bundle 3 ″.

  The comb tooth part is formed by mixing a long tooth part 847 and a short tooth part 848. The long tooth portion 847 is disposed so as to protrude forward from the paper end portion of the sheet bundle 3 ″, and the short tooth portion 848 is disposed so as to be held in front of the paper end portion of the sheet bundle 3 ″. This is to improve the holding and fixing accuracy of the upper pressing member 84b and the lower pressing member 84a and the shutter closing function by fitting the long tooth portion 847 to the portion selectively opened in the shutter 83.

  In this example, in order to align the positions of the holes of the sheet bundle 3 ″ with the alignment pins 85a and 85b, the clampers 82a and 82b are opened with the shutter 83 shown in FIG. 10 closed. As shown, the alignment pins 85b are inserted into the punch holes 3a of the sheet bundle 3 ″. At this time, the side jogger 70 shown by the two-dot chain line is configured to easily insert the alignment pins 85a and 85b by shaking both sides of the sheet bundle 3 ″ and to align the hole positions of the sheet bundle 3 ″. This is for facilitating insertion of the binding component 43 into the punch hole 3a.

  FIG. 12 is a front view illustrating an example of a pantograph structure of the sheet fixing and moving unit 880 in the clamp moving mechanism 80.

The paper fixing and moving unit 880 separable from the clamp opening / closing drive unit 881 shown in FIG. 12 is provided with oval-shaped isometric link members 813a and 813b shown by broken lines.

  In this example, the lower shaft 804 (shaft portion) of the lower arm 801a and the upper shaft 803 (shaft portion) of the upper arm 801b are engaged with one end of the equal-length link members 813a and 813b, and the equal-length link. The other ends of the members 813a and 813b are engaged with the long holes 808a (see FIG. 10) of the joint plate 801 via the engaging members 809a.

  Although not shown, the lower shaft 804 of the lower arm 801a on the opposite side and the upper shaft 803 of the upper arm 801b are engaged with one end of the equal-length link members 813a and 813b, and the equal-length link members 813a and 813b The other end is engaged with the long hole 808b of the joint plate 802 via the engaging member 809b, and the sheet fixing moving portion 880 has a pantograph structure.

  In this example, in each of the joint plates 801 and 802, since the upper arm 801b and the lower arm 801a are coupled by the equal-length link members 813a and 813b having the bantograph structure, the coupling member 809a of the equal-length link members 813a and 813b is provided. , It is always positioned at the center between the upper arm 801b and the lower arm 801a.

  With such a pantograph structure, the fulcrum of the equal-length link members 813a and 813b on one side can be connected to the joint plate 801 by the engaging member 809a, and the equal-length link member 813a on the other side is not shown. , 813b can be connected to the joint plate 802 by the engaging member 809b, and the center position of the sheet bundle 3 ″ can be guided directly to the binding mechanism moving mechanism 41 of the bind processing unit 40, and the sheet bundle The guide structure for the center position of 3 ″ can be simplified. Further, since the center position changes linearly according to the thickness of the sheet bundle 3 ″, complicated processing and control are not required.

A roller member 817 is provided on the distal end side of the joint plate 801 having the engaging member 809a engaged with the isometric link members 813a and 813b. As shown in FIG. 10, the distal end side of the joint plate 802 is provided. In addition, a roller member 818 is provided. The roller members 817 and 818 are guided by a Y-shaped opening 44a (44b) provided at the front end of the bind processing unit 40 shown in FIG. 2, and set the sheet bundle 3 ″ at a predetermined binding position in the next step. Here, the distal end side of the joint plate 801 refers to the position relative to the terminal end side where the fulcrum shaft hole 807a is disposed.

In this example, the fulcrum shaft member 805 is movably engaged with the sliding groove 922 and the sliding groove 924 shown in FIG. The engaging member 829 is movably engaged with the sliding groove 921 and the sliding groove 923, respectively. In the clamp moving mechanism 80, the roller member 817 of the joint plate 801, the engaging members 809a of the equal-length link members 813a and 813b, and the shaft hole 807a for the fulcrum are arranged on one straight line. Further, the roller member 818 of the joint plate 802, the engaging members 809b of the equal-length link members 813a and 813b, and the shaft hole 807b for the fulcrum are arranged on a straight line.

In this example, on the joint plate 80 1 is shown in FIG. 10, the lead plate 801 'is provided having a bent shape. One end of the lead plate 801 ′ is also engaged with the joint plate 801 with the fulcrum shaft member 805 in common, and the fulcrum shaft member 805 is movably engaged with the sliding grooves 922 and 924 shown in FIG . Further, the engaging member 829 is also movably engaged with the sliding grooves 923 and 921 shown in FIG. 7 together with the joint plate 801 at the center of the lead plate 801 ′. The opposite joint plate 802 and lead plate 802 ′ are configured similarly.

  A roller member 827 is provided at the lower end of the lead plate 801 ′ provided above the joint plate 801. The roller member 827 is engaged with a fan-shaped cam 402 provided in the moving mechanism 41.

  The shape of the cam 402 has a part of an arc centered on the moving mechanism rotation shaft 41d shown in FIG. The cam 402 keeps contacting the roller member 827 of the paper fixing and moving unit 880. The cam 402 is a position that can cover the entire range in which the moving mechanism 41 moves, and is provided at a position for receiving (following) the roller member 827 of the paper fixing moving unit 880. In other words, regardless of whether the moving mechanism 41 is tilted below the binder cassette 42 or below the binder paper alignment unit 30, the roller mechanism 837 of the paper fixing and moving unit 880 is received (followed). Provided.

These result, constitute a clamp movement mechanism 80 and its peripheral mechanism, the main body substrate 900 these members is attached, by right Tanfu frame 92a and left frame 92b is attached to the chassis 45 of the bind processing unit 40, A sheet alignment & binding processing unit 110 that is made into one block is configured.

  FIG. 13 is a front view illustrating a connection example of the sheet fixing and moving unit 880 and the moving mechanism 41 in the sheet alignment and binding processing unit 110.

  A binding processing unit 40 is provided on the downstream side of the clamp moving mechanism 80 shown in FIG. 13 so that the binding component 43 is attached to the sheet bundle 3 ″. In this example, the cam 402 is positioned upward when the sheet bundle is aligned. The sheet fixing moving unit 880 performs a clamp opening / closing operation.

When the sheet bundle is moved, the moving mechanism 41 receives the binding component 43 from the binder cassette 42 and moves from below the binder cassette 42 to below the binder paper alignment unit 30, and the cam 402 is pulled downward by the moving mechanism 41. Then, the sheet fixing and moving unit 880 falls by its own weight from the home position HP ′ to the retracted position of the cam 402. At this time, the roller members 817 and 818 provided at the lower end of the sheet fixing and moving unit 880 are received by the Y-shaped openings 44a and 44b (engagement units) provided at the tip of the moving mechanism 41.

  Thereafter, when the binding component 43 is attached to the sheet bundle 3 ″ by the moving mechanism 41, the cam 402 is pushed upward, the moving mechanism 41 is retracted below the binder cassette 42, and the sheet fixing moving unit 880 is moved to the home position HP. Returning to ', the lower arm 801a and the upper arm 801b are movable when the booklet is discharged.

  As described above, when the sheet bundle is moved (binding process), the roller members 817 and 818 are engaged with the Y-shaped openings 44a and 44b of the bind processing unit 40 in a self-aligning manner, and thus the ring binding of the bind processing unit 40 is performed. The clamp release operation can be linked to the operation timing. In this example, when the binding component 43 is bound to the sheet bundle 3 ″, the center position of the sheet bundle 3 ″ is guided to the center position of the binding component 43, and the binding component 43 is reliably bound to the sheet bundle 3 ″. It can be processed.

  Subsequently, an operation example in the clamp moving mechanism 80 will be described. 14 to 17 are front views showing an operation example (parts 1 to 4) at the time of aligning the sheet bundle in the clamp moving mechanism 80. FIG.

  In this example, according to the operation example (part 1) of the clamp moving mechanism 80, the shutter 83 shown in FIG. 10 is closed and the sheet 3 ′ enters the sheet holding unit 32 and is brought into contact with the shutter 83. Suppose that the upper arm 801b is closed. The alignment pin 85a is in a standby state where it is not inserted into the sheet bundle 3 ″.

  According to the operation example at the time of sheet bundle alignment in the clamp moving mechanism 80 shown in FIG. 14, the clamper 82b and the clamper 82a are the rear ends of the fulcrum shaft member 805 as a reference, and the front end is a joint plate with a restriction hole. The clamping operation is executed while the upper shaft 803 and the lower shaft 804 are restricted by the restriction holes 806a and 806b of 801 and 802.

  In this example, the comb-shaped upper presser member 84b attached to the upper shaft 803 shown in FIG. 14 and the comb-type lower presser member 84a attached to the lower shaft 804 enter the paper storage unit 32. Hold the incoming paper 3 '. At this time, the long tooth portion 847 shown in FIG. 11A sandwiches the sheet bundle 3 ″ at a position where it protrudes forward from the paper edge portion, and the short tooth portion 848 is a position where the short tooth portion 848 refrains from the paper edge portion. The sheet bundle 3 ″ is sandwiched. Further, since the long tooth portion 847 is arranged at the opening portion of the shutter 83, the holding and fixing accuracy of the upper pressing member 84b and the lower pressing member 84a and the closing accuracy of the shutter 83 can be improved.

  At this time, the cams 87a and 87b take a predetermined posture at the cam retracted position Pc (non-home position). For example, the protrusions of the cams 87a and 87b are in a state of facing straight. This state is a state in which the clampers 82a and 82b are closed by the urging force of the spring spring 816 shown in FIG.

  In this example, a clamp home position sensor (hereinafter referred to as HP sensor 821) is disposed in the vicinity of the cam 87b, and a home position detection signal (hereinafter referred to as cam HP detection) is detected by detecting the home position (HP) of the clamper 82b or the like. Signal S21) is output to the controller 50. The home position HP of the clamper 82b is set to a position (clamp closing position) where the upper arm 801b has moved most downward. The clamper 82a is set in the same manner, but its description is omitted.

  Further, a sheet thickness detection sensor 822 is disposed on the main body substrate 900, and a slit portion 823 is provided on the upper arm 801b, and is used in combination with the sheet thickness detection sensor 822. A transmissive photosensor is used as the paper thickness detection sensor 822.

For example, the slit portion 823 has a slit shape with a predetermined pitch, and the sheet thickness detection sensor 822 detects the edge of the upper arm 801b each time the sheet bundle 3 ″ reaches a certain thickness, and the upper arm 801b opens and closes. By performing the operation, the sheet thickness is detected, and the opening / closing amounts of the clampers 82a and 82b vary depending on the sheet bundle thickness, so that the thickness of the sheet bundle 3 ″ can be detected by edge detection. As described above, the sheet thickness detection sensor 822 detects the thickness of the sheet bundle 3 ″ that has entered the binder sheet alignment unit 30 and has been stacked (bundled), and sends a sheet thickness detection signal (not shown) to the control unit 50. In addition, since the clamp position is the position where the binding component 43 is bound, the thickness during the binding operation can be accurately detected.

Further, adjacent to the paper thickness detection sensor 822, a 50-sheet thickness detection sensor (hereinafter referred to as 50-sheet sensor 824) is disposed on the main body substrate 900, and a light-shielding portion 825 is provided on the upper arm 801b. Used in combination with sensor 824. 50 Maise capacitors 824 is adapted to output by detecting the thickness at which the sheet 3 'are bundled 50 sheets 50 sheets detection signal (not shown) to the control unit 50.

  In this example, according to the operation example (part 2) at the time of sheet bundle alignment in the clamp moving mechanism 80 shown in FIG. 15, when the sheet 3 ′ enters and when the punch holes 3a of the sheet bundle 3 ″ are aligned. In the state where the shutter 83 shown in FIG. 10 is closed, the clampers 82a and 82b are opened, and then the alignment pins 85a and 85b are inserted by the alignment pin drive mechanism 91 shown in FIG.

  In the clamp moving mechanism 80, the cams 87a and 87b take a predetermined posture at the clamp release position (non-home position HP). For example, from the state in which the clampers 82a and 82b shown in FIG. 13 are closed, the motor 86 converts the motor rotational speed by a predetermined gear ratio through the gear unit 88 and transmits the motor rotational force to the cams 87a and 87b. . As a result, the cams 87a and 87b are rotated 90 ° clockwise from the cam retracted position Pc.

At this time, in each clamper 82a and 82b, the protrusion of the cam 87a is pressed against the roller 826 of the upper arm 801b of the clamper 82a , and the protrusion of the cam 87b is pressed against the roller 826 of the upper arm 801b of the clamper 82b. Thus, the respective clampers 82a and 82b are opened in synchronization.

  The joint plates 801 and 802 with restriction holes operate so that the lower arm 801a and the upper arm 801b open with the fulcrum shaft member 805 as a movable reference. At this time, the movement of the lower shaft 804 and the upper shaft 803 is restricted by the elongated restriction holes 806a and 806b of the joint plates 801 and 802, and the clamp opening widths in the joint plates 801 and 802 are restricted. The driving force is transmitted to a lower shaft 804 movably attached to the lower arm 801a and an upper shaft 803 movably attached to the upper arm 801b.

  As a result, the comb-shaped upper pressing member 84b attached to the upper shaft 803 and the comb-shaped lower pressing member 84a attached to the lower shaft 804 freely release the sheet bundle 3 ″. These clampers 82a and 82b. However, even when the sheet bundle 3 ″ is in the free open state, the natural fall of the sheet bundle 3 ″ can be stopped by closing the shutter 83.

  Then, the motor 89 is driven, and the alignment pin driving mechanism 91 shown in FIG. 7 converts the forward rotational motion of the motor 89 into the pin lifting motion, so that the alignment pins 85a and 85b are inserted into the punch holes 3a of the sheet bundle 3 ″. At this time, the side jogger 70 shown in FIG. 6 is configured to make it easy to insert the alignment pins 85a and 85b by shaking both sides of the sheet bundle 3 ″. Thereby, the positions of the punch holes 3a of the sheet bundle 3 '' can be aligned.

  According to the operation example (part 3) at the time of sheet bundle alignment in the clamp moving mechanism 80 shown in FIG. 16, the punch holes 3a of the sheet bundle 3 ″ are aligned, and the clamp pin is again in the clamp / lock state with the alignment pin inserted. The case where the alignment pins 85a and 85b are removed from the sheet bundle 3 ″ as shown in FIG.

  In the clamp moving mechanism 80, the cams 87a and 87b are returned from the clamp release position (home position HP) to the cam retracted position Pc, and their protrusions are facing right side. In this state, the motor 86 rotates in reverse, the motor rotation number is converted by a predetermined gear ratio through the gear unit 88, and the motor rotation force is transmitted to the cams 87a and 87b. This is because the cams 87a and 87b rotate 90 ° counterclockwise from the clamp release position (home position HP) and return to the cam retracted position Pc.

By this cam retracting operation, the clampers 82a and 82b take a predetermined posture at an arbitrary position corresponding to the thickness of the sheet bundle 3 ″ by the biasing force of a spring spring (not shown). For example, in each of the clampers 82a and 82b, The protrusion of the cam 87a to the roller 826 of the upper arm 801b of the clamper 82a is not pressed, and the protrusion of the cam 87b to the roller 826 of the upper arm 801b of the clamper 82b is not pressed. The clampers 82a and 82b are closed synchronously.

  The joint plates 801 and 802 operate so that the lower arm 801a and the upper arm 801b are closed with the fulcrum shaft member 805 as a movable reference. The driving force is transmitted to a lower shaft 804 movably attached to the lower arm 801a and an upper shaft 803 movably attached to the upper arm 801b. As a result, the comb-shaped upper pressing member 84b attached to the upper shaft 803 and the comb-shaped lower pressing member 84a attached to the lower shaft 804 hold and fix the sheet bundle 3 ″.

Thereafter, the motor 89 is driven, and the alignment pin driving mechanism 91 shown in FIG. 7 converts the reverse rotational motion of the motor 89 into a descending motion, and the alignment pins 85a and 85b are pulled out from the punch holes 3a of the sheet bundle 3 ″. Accordingly, the punch holes 3a of the sheet bundle 3 ″ can be aligned and held and fixed before the binding process. During this time, the shutter 83 operates to limit the discharge of the sheet bundle 3 ″ accumulated in the sheet holding unit 32.

  The operation example (part 4) at the time of sheet bundle alignment in the clamp movement mechanism 80 shown in FIG. 17 is a case where the sheet bundle 3 ″ in the clamped state moves to the downstream side. Only the fixed moving part 880 moves independently along the predetermined sliding grooves 921 to 924 independently of the main body substrate 900, the left and right end frames 92a, 92b, etc. shown in FIG. Just before, the shutter 83 shown in the figure is opened so as to slide in a direction perpendicular to the conveying direction of the sheet bundle 3 ″. As a result, the sheet bundle 3 ″ accumulated in the sheet holding portion 32 and having the punch holes 3a rearranged can be discharged to the next process.

  FIG. 18 is a front view that supplements an example of movement of the sheet fixing and moving unit 880. According to the sheet fixing and moving unit 880 shown in FIG. 18, a state is shown in which the sheet is moved to the downstream side along predetermined sliding grooves 921 to 924 independently of the main body substrate 900.

This condition, by fan-shaped cam 402 of the bind processing unit 40 is lowered, resulting in that the paper fixing mobile unit 880 free-fall by separating the clamp opening and closing drive unit 881. At this time, the roller members 817 and 818 at the lower end of the sheet fixing and moving unit 880 are received by the Y-shaped openings 44 a and 44 b at the tip of the moving mechanism 41. Thereafter, when the binding component 43 is attached to the sheet bundle 3 ″ by the moving mechanism 41, the moving mechanism 41 is retracted below the binder cassette 42, and the sheet fixing moving unit 880 returns to the home position HP ′.

Increasing power of the sheet fixed movement section 880 at this time is given by the movement mechanism 41 of the bind processing unit 40. For example, when the fan-shaped cam 402 of the moving mechanism 41 rises, the roller member 827 is pushed up. As a result, the sheet fixing and moving unit 880 returns to the home position HP ′. Thereafter, in order to discharge the booklet, the lower arm 801a and the upper arm 801b are movable.

  Next, a configuration example of the control system of the binder paper alignment unit will be described. FIG. 19 is a block diagram illustrating a configuration example of a control system of the binder paper alignment unit 30.

  19 includes motor drive units 35 and 36, an HP detection sensor 93 for alignment pins, an upper end detection sensor 94, an HP sensor 115 for a press roller, an HP sensor 117 for a curl fence, and a paper detection sensor. 119, a discharge roller driving unit 122, motor driving units 180 to 185, and a HP sensor 821 for clamping are connected.

  The sheet detection sensor 119 detects the sheet 3 ′ discharged from the punch processing unit 20 and outputs a sheet detection signal S <b> 19 to the control unit 50. The control unit 50 controls the motor driving units 35 and 36 and the motor driving units 180 to 183 based on the paper detection signal S19. For example, the motor control signal S36 is output to the motor drive unit 36 based on the paper detection signal S19.

  A discharge roller rotating motor 205 is connected to the discharge roller driving unit 122. The discharge roller driving unit 122 receives the motor control signal S22 from the control unit 50, drives the motor 205, and rotates the discharge roller 25. The sheet 3 ′ discharged from the punch processing unit 20 is conveyed by the rotation of the discharge roller 25 and enters the binder sheet aligning unit 30.

  The HP sensor 117 detects the position of the protruding portion 342 such as the curl fence portion 34 b and outputs a home position (hereinafter referred to as HP) detection signal S 17 to the control unit 50. The control unit 50 outputs a motor control signal S35 to the motor driving unit 35 based on the paper detection signal S19 and the HP detection signal S17.

  A motor 301 for rotating the curl fence is connected to the motor drive unit 35. The motor drive unit 35 receives the motor control signal S35 from the control unit 50, rotates the motor 301, and drives the curl fence units 34a and 34b.

  A motor 708 for rotating paddle rollers is connected to the motor drive unit 36. The motor drive unit 36 receives the motor control signal S36 from the control unit 50, rotates the motor 708, and drives the paddle roller 37.

The motor drive unit 180, a motor 308 for moving mechanism of bind processing unit 40 is connected. The motor driving unit 180 receives the motor control signal S80 from the control unit 50, rotates the motor 308, and drives the moving mechanism 41. For example, in the clamp moving mechanism 80, the shutter 83 is opened and the fan-shaped cam 402 of the moving mechanism 41 is pulled down. Therefore, the sheet fixing moving unit 880 holding the sheet bundle 3 ″ is lowered and the process proceeds to the next process. Thereafter, the sheet fixing and moving unit 880 is raised, the sheet bundle 3 ″ is opened, and the shutter 83 is closed after the sheet bundle is discharged.

  The clamping HP sensor 821 detects the clamp opening position of the clamp moving mechanism 80. In this example, the home positions HP of the cams 87a and 87b are detected with respect to the home positions (HP) of the clampers 82a and 82b and the cam HP detection signal S21 is output to the control unit 50. The control unit 50 controls the clamp member moving motor 86 via the motor driving unit 181 based on the cam HP detection signal S21 when aligning the sheet bundle.

  A motor 86 for driving the clamp member is connected to the motor drive unit 181. The motor drive unit 181 receives the motor control signal S81 from the control unit 50, rotates the motor 86, and drives clamp members such as the lower arm 801a and the upper arm 801b. At the time of sheet bundle alignment, the clamp member is opened. When pinching the sheet bundle 3 ″, the clamp member is closed.

The HP detection sensor 93 detects the home position HP of the alignment pins 85a and 85b and outputs a pin HP detection signal S93 to the control unit 50. The home position HP of the alignment pins 85a and 85b refers to a position lowered by a predetermined distance from the sheet alignment surface. The alignment pins 85a and 85b stand by at this position. The upper end detection sensor 94 detects the upper ends of the alignment pins 85 a and 85 b and outputs an upper end detection signal S 94 to the control unit 50. The control unit 50 controls the pin member moving motor 89 via the motor driving unit 182 based on the pin HP detection signal S93 and the upper end detection signal S94 when aligning the sheet bundle.

  The motor driving unit 182 is connected to a motor 89 for driving the alignment pins. The motor driving unit 182 receives the motor control signal S82 from the control unit 50, rotates the motor 89, and reduces the reduction gear 98, the UD rack 95, the link 96, the X-shaped arms 99a and 99b, the alignment pins 85a and 85b, and the like. Drive. At the time of sheet bundle alignment, the alignment pins 85a and 85b are passed through the punch holes 3a of the sheet bundle 3 ″.

Side motor joggers 74 a and 74 b are connected to the motor drive unit 183. The motor driving unit 183 receives the motor control signal S83 from the control unit 50, rotates the motors 74a and 74b, and drives the side jogger 70. When aligning the sheet bundle, the width aligning guide 72a and the width aligning reference guide 72b of the side jogger 70 align the width direction of the sheet bundle 3 ″. When discharging the sheet bundle, the width aligning guide 72a and the width aligning reference guide 72b is retracted.

The HP sensor 115 detects the position of the feeding roller 33 and outputs a roller detection signal S15 to the control unit 50. The home position of the feeding roller 33 refers to a position that is elevated a predetermined distance from the sheet alignment surface. The feeding roller 33 waits at this position. The controller 50 controls the feeding roller 33 and the press roller 38 based on the roller detection signal S15 when the sheet bundle is discharged.

A motor 814 for moving the press roller is connected to the motor driving unit 184. The motor driving unit 184 receives the motor control signal S84 from the control unit 50, rotates the motor 814, and drives the feeding roller 33.

A motor 815 for rotating the feeding roller is connected to the motor driving unit 185. The motor driving unit 185 receives the motor control signal S85 from the control unit 50, rotates the motor 815, and drives the press roller 38. When the sheet bundle is discharged, the feeding roller 33 and the press roller 38 are configured to press the sheet bundle 3 ″ from the front and back and send it to the next process.

  Next, a control example at the time of paper alignment in the binding device 100 will be described. 20 and 21 are flowcharts showing control examples (parts 1 and 2) of the bind paper alignment unit 30. FIG.

  In this embodiment, when the sheet bundle is aligned, the sheet fixing and moving unit 880 performs a clamp opening / closing operation at the home position HP ′, and when the sheet bundle is moved, the binding processing unit 40 receives the binding component 43 from the binder cassette 42 and binds the binder. It is premised on a case where the sheet 42 moves from the lower side of the cassette 42 to the lower side of the binder paper aligning unit 30 and only the paper fixing moving unit 880 falls by its own weight from the home position HP ′ to the retracted position of the cam 402. Thereafter, when the binding component 43 is attached to the sheet bundle 3 ″ by the moving mechanism 41, the moving mechanism 41 is retracted below the binder cassette 42, and the sheet fixing moving unit 880 returns to the home position HP ′, and the booklet is discharged. As an example, the lower arm 801a and the upper arm 801b are movable.

Under these control conditions, a start command for a pin alignment operation is waited at step ST1 of the flowchart shown in FIG. If there is a start command from the upper control system, the paddle roller 37 is retracted in step ST2. Next, in step ST3, the width adjusting guide 72a and the width adjusting reference guide 72b in the side jogger 70 are retracted.

  In step ST4, the upper arms 801b of the joint plates 801 and 802 are released to a predetermined position. In this example, the lower arm 801a is fixed and only the upper arm 801b is driven. In the sheet fixing and moving unit 880, the lower shaft 804 of the lower arm 801a is positioned in the V groove portion 925 of the left and right end frames 92a and 92b so that the left and right end lower arms 801a are arranged flush with the running surface of the sheet holding unit 32. 926 is brought into a fixed state.

  The left and right upper arms 801b are always urged in the closing direction by the spring spring 816, and the opening / closing operation is performed by the cam driving of the clamp opening / closing drive unit 881. In this example, the clamp opening / closing drive unit 881 opens the upper arm 801b to an intermediate position to facilitate the alignment of the sheet bundle 3 ″. At this time, the alignment pins 85a and 85b are retracted to the outside of the sheet bundle conveyance path I. ing.

  In step ST5, the controller 50 aligns the pins by projecting the alignment pins 85a and 85b from the lower arm 801a side to the upper arm 801b side. At this time, the upper arm 801b starts the opening operation simultaneously with the protruding operation of the alignment pins 85a and 85b. The alignment pins 85a and 85b are inserted while loosening the force with which the upper arm 801b presses the sheet 3 '. The upper arm 801b opens and stops to an arbitrary intermediate position that is wider than the booklet thickness and narrower than the height of the sheet bundle conveying path I, and detects that the alignment pins 85a and 85b have reached the upper end position by the upper end detection sensor 94. Until this position is waiting.

In addition, you may make it vibrate the alignment pins 85a and 85b, or the width adjusting guide 72a and the width adjusting reference guide 72b of the side jogger 70. As a result, the frictional resistance of the sheet 3 ′ can be reduced, and with the upper arm 801b opened, the alignment pins 85a and 85b can be easily inserted and penetrated into the punch holes 3a to perform pin alignment. .

  In step ST6, the control unit 50 determines whether or not the alignment pins 85a and 85b have penetrated the punch hole 3a. In this example, the upper end detection sensor 94 monitors the time from when the alignment pins 85a and 85b start the protruding operation until the upper end position is reached. If the alignment pins 85a and 85b do not reach the upper end within a predetermined time, the operation shifts to a pin alignment retry operation.

  An upper end detection signal S94 is output from the upper end detection sensor 94 to the control unit 50. The controller 50 determines whether or not the upper end detection sensor 94 has detected the upper end of the alignment pin based on the upper end detection signal S94. If the upper end detection sensor 94 has not detected the upper end of the alignment pin, the process proceeds to step ST16 and abnormality processing is executed.

  If the upper end detection sensor 94 has already detected the upper end of the alignment pin in step ST6, the process proceeds to step ST7. In step ST7, since the alignment pins 85a and 85b are inserted into the sheet bundle 3 ″, the clampers 82a and 82b are closed. In this example, the upper arm is retracted by the cams 87a and 87b of the clamp opening / closing drive unit 881. In this way, by closing the clampers 82a and 82b with the alignment pins 85a and 85b reaching the upper end, that is, with the alignment pins 85a and 85b penetrating, it is possible to reliably form the paper. The bundle 3 "can be aligned.

  Thus, when the upper arm 801b moves in the closing direction and the closing is completed, the process proceeds to step ST8 shown in FIG. 21, and the alignment pins 85a and 85b are retracted. In this example, the alignment pins 85a and 85b retract to the lower end position.

  In step ST <b> 9, the control unit 50 sets the moving mechanism 41 of the bind processing unit 40 below the binder paper alignment unit 30. For example, the control unit 50 outputs a motor control signal S80 to the motor driving unit 180, rotates the motor 308, and moves the moving mechanism 41 below the binder paper alignment unit 30. At this time, the fan-shaped cam 402 remains in contact with the roller member 827.

  In step ST10, the sheet fixing moving unit 880 holding the sheet bundle 3 ″ is lowered and moved to the next process. In this example, the clamp moving mechanism 80 opens the shutter 83 and the bind processing unit 40 The moving mechanism 41 moves below the binder paper alignment unit 30 and drives the fan-shaped cam 402 to be pulled down.

  In conjunction with the cam pulling-down operation, the lower shaft 804 of the sheet fixing and moving unit 880 is disengaged from the V groove portions 925 and 926 of the left and right end frames 92a and 92b, the lower arm 801a is in an unconstrained state, and the moving mechanism 41 has a fan shape. As the cam 402 moves downward, only the sheet fixing and moving unit 880 holding the sheet bundle 3 ″ falls by its own weight.

  At this time, the sheet fixing and moving unit 880 is disconnected from the driving of the cams 87a and 87b of the clamp opening / closing drive unit 881 when the movement to the bind processing unit 40 is started. As a result, the clampers 82a and 82b are always closed due to the urging force of the spring spring 816, so that only the sheet fixing moving unit 880 can be moved to the binding processing unit 40 while the sheet bundle 3 ″ is held.

  In step ST11, the moving mechanism 41 executes the binding process of the sheet bundle 3 ″. At this time, the motor driving unit 180 rotates the motor 308 based on the motor control signal S80 input from the control unit 50, and the sheet bundle. A binding component 43 is attached to 3 ″. The sheet bundle 3 ″ after the binding process becomes a booklet 90. This completes the alignment and binding process of the sheet bundle 3 ″.

  Next, the booklet 90 saving process is executed in step ST12. At this time, the control unit 50 outputs a motor control signal S80 to the motor driving unit 180, rotates the motor 308, and ascends the sheet fixing and moving unit 880 holding the booklet 90.

  For example, the shutter 83 remains opened by the clamp moving mechanism 80, and the bind processing unit 40 is driven to push up the fan-shaped cam 402. In conjunction with this cam push-up operation, the lower shaft 804 of the sheet fixing and moving unit 880 enters the V groove portions 925 and 926 of the left and right end frames 92a and 92b, and the lower arm 801a is in a restrained state.

  By moving the fan-shaped cam 402 upward, the sheet fixing and moving unit 880 holding the booklet 90 returns to the home position HP. At this time, the sheet fixing and moving unit 880 is engaged with the cams 87a and 87b of the clamp opening / closing drive unit 881 when the return to the binder sheet aligning unit 30 is completed. Thus, the clamper 82a and 82b closed by the urging force of the spring spring 816 can open and close the binder fixing unit 30 while holding the booklet 90 again with the binder paper alignment unit 30. It becomes like.

  Next, the retracting process of the moving mechanism 41 is executed in step ST13. In this example, the moving mechanism 41 is moved from the lower side of the binder paper aligning unit 30 to the lower side of the binder cassette 42 in conjunction with the return of the paper fixing and moving unit 880 described above. At this time, the fan-shaped cam 402 remains in contact with the roller member 827. The control unit 50 outputs a motor control signal S80 to the motor driving unit 180, rotates the motor 308, and moves the moving mechanism 41 from below the binder paper alignment unit 30 to below the binder cassette 42.

  Next, the discharge process of the booklet 90 held at the home position HP is executed in step ST14. At this time, since the shutter 83 remains open, the clamp opening / closing drive unit 881 opens the booklet 90 by opening the upper frame 801b by driving the cams 87a and 87b. The booklet 90 falls by its own weight onto the discharge unit 60 because the clampers 82a and 82b are opened.

  Thereafter, in step ST15, the control unit 50 determines whether or not the booklet 90 has been normally discharged. As a determination criterion at this time, a predetermined time related to the discharge of the booklet 90 is monitored, and if the predetermined time is exceeded, it is determined that the booklet 90 is not normally discharged. When the booklet 90 is normally discharged, the paper alignment and paper binding discharge control is normally ended.

  In addition, when the upper end detection sensor 94 cannot detect the upper end of the alignment pins even after the predetermined time has elapsed in step ST6 described above, and when the booklet 90 is not normally ejected in step ST15, a jam or the like has occurred. Therefore, the process proceeds to step ST16 to execute abnormality processing. For example, error display processing is executed on a display unit (not shown) to display the cause of the error. In the second embodiment, the jam processing is performed for the paper 3 ′ having a defective alignment, the booklet not falling, or the like.

  As described above, according to the binding device 100 according to the first embodiment, when the sheet bundle 3 ″ obtained by bundling a plurality of sheets 3 ′ is moved, each upper arm of the sheet fixing and moving unit 880 is moved. Overcoming the urging force of the spring 816 against the spring 816b, the clamp opening / closing drive unit 881 maintains the clamp open state. In this state, when a plurality of sheets 3 ′ are bundled and a sheet bundle 3 ″ is obtained, the sheet fixing movement The unit 880 is configured to move while fixing the sheet bundle 3 ″ independently of the clamp opening / closing drive unit 881.

  Accordingly, the binder paper aligning unit 30 can be separated into the clamp opening / closing drive unit 881 and the paper fixing / moving unit 880, and the sheet bundle 3 ″ can be formed by the paper fixing / moving unit 880 mounted with the minimum necessary mechanical parts. It can be fixed and easily moved to the binding process or the like.

In addition, the clamp opening / closing drive unit 881 is mounted on the sheet fixing / moving unit 880 and is moved by a separate means for each clamp moving mechanism, and the sheet bundle 3 ″ is conveyed to the binding unit or the sheet bundle 3 ″ is moved. As compared with the method of moving the binding part 43 and the moving mechanism 41 of the bind processing unit 40 to a predetermined position and performing the ring bind process, the moving area (dead space) of the clamp moving mechanism 80 is reduced, and the sheet is reduced. The structure of the alignment and binding processing unit 110 can be made compact and simple.

  Incidentally, the clampers 82a and 82b can be driven directly connected to a stepping motor or the like, or the positions of the clampers 82a and 82b can be changed according to the sheet bundle thickness, or the sheet conveying surface of the sheet holding unit 32 can be moved up and down. Compared to the case of controlling the structure so that the sheet bundle 3 ″ does not bend according to the number of stacked sheets 3 ′, the components for the clamp moving mechanism and the control sequence can be simplified.

  Further, since there is no movement of the electric components such as the motor 86 and the HP sensor 821 when the sheet bundle is moved, wiring (harness) processing becomes unnecessary, and the structure of the clamp moving mechanism 80 can be simplified. Further, when the sheet bundle is aligned, the lower arm 801a is fixed flush with the sheet conveying surface, and the upper arm 801b is opened, so that the sheet curling mechanism 31 can correct the curl of the sheet 3 ′ accurately. You can align the paper. For this reason, the paper 3 'can be aligned along the transport surface, and stable paper alignment can be performed.

  FIG. 22 is a front view illustrating a configuration example of the sheet alignment and binding processing unit 110 ′ in the sheet processing apparatus 100 as the second embodiment.

  According to the sheet alignment & binding processing unit 110 ′ shown in FIG. 22, the clamp moving mechanism 80 can be provided with an operation lever for releasing the clamp (hereinafter referred to as a clamp lever 840 ′).

  The clamp lever 840 'is used when performing an abnormality process in step ST16 of the first embodiment. For example, at the time of sheet bundle alignment, the clamp lever 840 ′ is operated when performing jam processing for the alignment defective sheet 3 ′, booklet non-falling, or the like. The clamp lever 840 ′ is attached to the cam interlocking member 819 constituting the cam shaft portion in the clamp opening / closing drive portion 881. For example, the cam interlocking member 819 is extended to the front side, and the clamp lever 840 ′ is attached on the shaft portion of the cam interlocking member 819.

  The hook type clamp lever 840 'shown in FIG. 22 is different in shape from the handle type clamp lever 840 shown in FIG. A hard resin is used for the lever member, and an injection molded product of this hard resin is used. The clamp lever 840 ′ has a main body member 841, and has a long hole 842 in the central portion of the main body member 841. In the case of a right-hand operation, when releasing the clamp, an operation is performed by putting the pinky finger from the index finger into the elongated hole 842 and holding it, and pulling down the clamp lever 840 '.

In this example, in FIG. 23, when the lever angle θa is θa = 0 ° and is the home position HP of the clamp lever 840 ′, the lever angle θb is θb = 90 °, and the clamp lever shown in FIG. This is the home position PC of the cams 87a and 87b attached to the cam interlocking member 819 provided with 840 ′. The clamp opening / closing drive unit 881 drives the cam interlocking member 819 between the lever angle θa and the lever angle θb (hereinafter referred to as a normal operation range). The lever angle θx that is the angle of the lever at the clamp release lock position Px is, for example, θx = 115 °.

By providing such a clamp lever 840 ′, the angle θx of the lever at the clamp release lock position Px and the lever angles θa and θb in the normal operation range IV of the cams 87a and 87b can be made different. If 'is not rotated to the release position, the front cover of the binding device cannot be closed. That is, the clamp lever 840 ′ can be used as an interference when the cover is closed, and by adopting such a structure, forgetting to unlock can be prevented.

  FIG. 23 is a configuration diagram illustrating an example of an operation range of the cam 87a and the like of the clamp moving mechanism 80.

According to the cam shape of this example, the clamp release lock position Px is set at a position different from the normal operation range IV of the clamp opening / closing cams 87a and 87b.

  A cam 87a (87b is not shown) for clamp U / D (up / down) shown in FIG. 23 has a deformed elliptical shape, is fixed to the cam interlocking member 819, and has a curved portion (predetermined shape). Part) 828a and 828c and U-shaped (concave) parts 828b and 828d.

The cam 87a has a shaft hole 828e with which the cam interlocking member 819 is engaged. The curved portion 828a includes, for example, an arc surface based on the first radius r1 with respect to the shaft hole 828e and a straight plane extending from the arc surface, and the curved portion 828c has a second shape with respect to the shaft hole 828e . And an arc surface based on a radius r2 (r2 <r1) and a straight plane extending from the arc surface.

  The boundary between the end of the arc surface of the curved portion 828a and the straight plane of the curved portion 828c forms a protrusion. The inner side of the protrusion forms a U-shaped portion 828b. The boundary between the end of the arc surface of the curved portion 828c and the straight plane of the curved portion 828a forms a protrusion. The inner side of the protrusion forms a U-shaped portion 828d.

In this example, the above-described curved portions 828a, 828c, U-shaped portion 828b and 828d are Ri支 lifting by the spoke portion 828F. The cams 87a and 87b are provided by, for example, resin molded parts or light alloy processed products.

  The curved portion 828a defines a normal operation range IV in which the upper arm 801b is moved to a predetermined position with respect to the lower arm 801a shown in FIG.

The U-shaped portion 828b is provided continuously to the curved shape portion 828a, and defines the clamp release lock position Px . In this example, the U-shaped portion 828b has a dropping function, and the roller 826 engaged with the upper arm 801b is dropped at a position further rotated from the normal operation range IV (θx = 115 °). The

In this example, in FIG. 23, when the lever angle θa is θa = 0 °, which is the home position HP of the clamp lever 840 ′, the lever angle θb is θb = 90 °, and the home positions of the cams 87a, 87b. PC. The lever angle θx is θx = 115 °, and is a clamp release lock position Px obtained by further rotating the clamp lever 840 ′ by an angle of 25 ° = (15 ° −90 °) from the home position PC of the cams 87a and 87b. . By providing such a U-shaped portion 828b, the open state of each upper arm 801b in the clampers 82a and 82b can be maintained.

  FIG. 24 is a front view illustrating an operation example of the cam 87b and the like when the clamp lever 840 'is operated in the binder paper alignment unit 30.

  The clamp moving mechanism 80 in the binder paper alignment unit 30 shown in FIG. 24 has a clamp opening / closing drive unit 881 for driving the upper arm 801b, and the clamp opening / closing drive unit 881 is provided with clamp opening / closing cams 87a, 87b. It is done. The upper arm 801b is provided with a clamp opening / closing roller 826 engaged with the cams 87a and 87b.

In this example, in step ST16 of the flowchart shown in FIG. 21, at the time of abnormality processing, the message such as "Please remove jammed by operating the clamp lever" is displayed, the user, a front (not shown) The cover or the like is opened and the clamp lever 840 ′ is operated. At this time, when the cam interlocking member 819 attached to the clamp lever 840 ′ rotates, the cams 87a and 87b fixed to the cam interlocking member 819 rotate, and the U-shaped portion 828b continuous to the curved shape portion 828a is rotated. The roller 826 of the upper arm 801b is dropped. In this state, the user performs jam removal work.

Thus, it is possible to vary the lever angle θx of the clamp open locked position shown in FIG. 2 4, the cam 87a, the lever angle theta a in the normal operating range IV of 87b, and theta b. After completion of the jam removing operation, the user is made to return the rotating the clamp lever 840 'from the clamping opening lock position P x to the home position HP position. This is because the front cover of the binding device cannot be closed unless the clamp lever 840 ′ is returned to the home position HP.

  As described above, according to the sheet processing apparatus 200 according to the second embodiment, when the sheet bundle 3 ″ obtained by bundling a plurality of sheets 3 ′ is conveyed, the clamp opening / closing drive unit 881 has the clamp opening / closing operation. Cams 87a and 87b are provided. When the sheet bundle is released, the cams 87a and 87b are predetermined curved portions 828a that define the normal operation range IV, and the upper arm 801b is moved to a predetermined position with respect to the lower arm 801a. Move to release the sheet bundle 3 ″. Further, when an abnormality occurs, by operating the clamp lever 840 ', the cams 87a and 87b are rotated to the U-shaped portion 828b continuous to the curved-shaped portion 828a, so that the roller 826 of the upper arm 801b is moved to the U-shaped portion. 828b.

Therefore, the clamp moving mechanism 80 can be locked with the upper arm 801b opened. As a result, the jam removal operation can be performed while the upper arm 801b is opened, so that the operability at the time of abnormality processing is improved. Moreover, since the clamp release lock position Px is set to a position different from the normal operation range IV, the clamp lever 840 ′ can be an interference object when the cover is closed. By adopting such a clamp operation structure, it becomes possible to prevent forgetting to unlock. In addition, the load on the control unit 50 can be reduced as compared with a method of detecting the lock position using the position sensors of the cams 87a and 87b and prompting the user to forget to release the operation lever.

  In the first and second embodiments described above, the case where the sheet fixing moving unit 880 for moving the sheet bundle 3 ″ is driven by the fan-shaped cam 402 via the moving mechanism 41 has been described. However, the entire sheet fixing and moving unit 880 may be connected by a belt or a rack and pinion and moved by a separate driving unit.

  The present invention is very suitable when applied to a binding device that binds recording paper output from a black-and-white and color copier or printing device.

1 is a conceptual diagram illustrating a configuration example of a binding device 100 to which a paper processing device as an embodiment according to the invention is applied. 3 is a front view illustrating a configuration example of a sheet alignment & binding processing unit 110. FIG. (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 binder paper alignment unit 30. FIG. FIG. 6 is a perspective view illustrating a configuration example of a paper curl pressing mechanism 31 and a peripheral mechanism. 4 is a perspective view showing a configuration example of a side jogger 70. FIG. 5 is a perspective view showing a configuration example of an alignment pin driving mechanism 91. FIG. FIG. 11 is a perspective view showing an operation example before pin penetration in the alignment pin drive mechanism 91. FIG. 10 is a perspective view showing an operation example when pins are penetrated in the alignment pin drive mechanism 91. It is a perspective view which shows the structural example of the clamp moving mechanism 80 as a 1st Example. (A)-(C) are explanatory drawings which show the example of a structure of a comb-type pressing member, and its operation example. 6 is a front view showing a pantograph structure example of a sheet fixing and moving unit 880 in the clamp moving mechanism 80. FIG. FIG. 10 is a front view illustrating a connection example of a sheet fixing and moving unit 880 and a moving mechanism 41 in the sheet alignment and binding processing unit 110. FIG. 10 is a front view showing an operation example (part 1) at the time of sheet bundle alignment in the clamp moving mechanism. FIG. 10 is a front view showing an operation example (part 2) at the time of sheet bundle alignment in the clamp moving mechanism. FIG. 10 is a front view showing an operation example (No. 3) at the time of sheet bundle alignment in the clamp moving mechanism. FIG. 10 is a front view showing an operation example (No. 4) at the time of sheet bundle alignment in the clamp moving mechanism. 10 is a front view that supplements an example of movement of a sheet fixing and moving unit 880. FIG. 3 is a block diagram illustrating a configuration example of a control system of a binder paper alignment unit 30. FIG. 6 is a flowchart illustrating a control example (part 1) of the paper alignment & binding processing unit 110; 12 is a flowchart illustrating a control example (part 2) of the paper alignment & binding processing unit 110; FIG. 10 is a front view illustrating a configuration example of a sheet alignment & binding processing unit 110 ′ in a sheet processing apparatus 100 as a second embodiment. It is a block diagram showing an example of an operation range of the cam 87a and the like of the clamp moving mechanism 80 in the sheet alignment & binding processing unit 110 '. It is a front view explaining the operation example of the cam 87b etc. at the time of lever operation.

Explanation of symbols

10 Paper transport section (paper transport means)
DESCRIPTION OF SYMBOLS 11 1st conveyance path 12 2nd conveyance path 15 Flap 20 Punch process part 21 Punch blade
22, 86, 89 Motor (drive unit)
23, 70 Side jogger 30 Binder paper alignment unit (paper holding means)
31 Paper curl pressing mechanism 32 Paper holding part 34a, 34b Curl fence part (pressing member)
37 Paddle roller 40 Binding processing unit 41 Movement mechanism 42 Binder cassette 43 Binding component 50 Control unit 60 Ejection unit 61 First belt unit 62 Second belt unit 80 Clamp movement mechanism (paper fixing movement mechanism)
83 Shutter 82a, 82b Clamper (clamp member)
85a, 85b Alignment pin 91 Alignment pin drive mechanism 93 HP detection sensor (detection unit)
94 Upper end detection sensor (detection unit)
100 Binding device (paper processing device)
801a Lower arm (fixing clamp member)
801b Upper arm (movable clamp member)
840, 840 'Clamp lever (operating lever)
880 Sheet fixing moving part 881 Clamp opening / closing drive part

Claims (5)

A paper processing apparatus for moving a paper bundle obtained by bundling a plurality of paper sheets in a predetermined direction ,
A paper fixing and moving mechanism that has a fixing clamp member and a movable clamp member on the left end side and the right end side, respectively, to fix and move the paper bundle;
The paper fixing and moving mechanism is
A body member;
A clamp opening and closing drive unit that is attached to the main body member and drives the movable clamp member on the left end side and the right end side;
A paper fixing movement unit that is movably attached to the main body member and that moves the paper bundle while fixing the paper bundle independently of the clamp opening / closing drive unit;
The paper fixing and moving mechanism is
A clamp member mounting board having a predetermined shape, having an axial hole at one end thereof, and having a long hole and a pair of restriction holes at predetermined positions on the other end, is provided on the left end side and the right end side of the main body member. Consists of,
A fulcrum shared by one end of the fixing clamp member on the left end side and the right end side and one end of the movable clamp member is engaged with the shaft hole of each of the substrates via a fulcrum shaft member,
A shaft portion provided at the other end of the fixing clamp member on the left end side and a shaft portion provided at the other end of the movable clamp member are engaged with the restriction holes of the substrate on the left end side. In addition, a shaft portion provided at the other end of the fixing clamp member on the right end side and a shaft portion provided at the other end of the movable clamp member are respectively provided in the restriction holes of the substrate on the right end side. Engaged,
A shaft portion at the other end of the fixing clamp member on the left end side and a shaft portion at the other end of the movable clamp member are engaged with one end of each of the pair of equal length link members on the left end side, and the right end The shaft portion at the other end of the fixing clamp member on the side and the shaft portion at the other end of the movable clamp member are engaged with one end of each of the pair of equal-length link members on the right end side,
The other end of the equal length link member on the left end side is engaged with a long hole of the substrate on the left end side via an engagement member, and the other end of the equal length link member on the right end side is the right end side substrate. sheet processing apparatus characterized that you have form an engaged pantograph structure via engagement member into the long hole of the. The sheet bundle is placed on the front end side of the clamping member mounting substrate opposite to the fulcrum shared by one end of each of the fixing and moving clamping members attached to the main body member of the paper fixing and moving mechanism in the next step. The sheet processing apparatus according to claim 1 , further comprising a roller member that guides to a predetermined binding position. The main body member of the paper fixing and moving mechanism is:
Each has a housing on the left end side and the right end side,
Grooves are provided at predetermined positions of the left end side and right end side housing parts,
When aligning the sheet bundle, the shaft portion of the other end of the fixing clamp member is engaged with the groove portion,
The sheet processing apparatus according to claim 2, wherein a shaft portion at the other end of the fixing clamp member is removed from the groove when the sheet bundle is moved. A roller member of a substrate for mounting a clamp of the paper fixing movement mechanism;
An engagement member of an isometric link of the substrate;
The sheet processing apparatus according to claim 3 , wherein the shaft hole at one end of the substrate is arranged on a straight line. A processing unit for attaching a binding component to a sheet bundle is provided on the downstream side of the sheet fixing and moving mechanism.
The sheet processing apparatus according to claim 4 , wherein the processing unit is provided with an engaging portion having a predetermined shape for receiving a binding position guide roller member of the sheet fixing and moving mechanism.

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