JPH06115278A - Method and apparatus for mounting tape of bookbinding apparatus - Google Patents

Abstract

PURPOSE:To mount a back tape in a simple, small-sized low-cost structure. CONSTITUTION:A tape holding unit 80a is moved to a tape mount starting position in a state that a solenoid 83 is energized before a sheet bundle arrives at a mounting position, and a tape cartridge is moved to a tape mount finishing position. When the bundle P is stopped at the mounting position, the unit 80a is rotated by the solenoid from an end of the bundle P to a protrusion mounted position. Then, after the solenoid 83 is controlled to be ON and a roller 81b of an adhesive side is rotated in a disengaging direction, the unit 80a is moved from the tape mount starting position to the tape mount finishing position. Then, the tape is pressed by a roller 81a to be mounted on the bundle P, and when the unit 80a arrives at the finishing position, a tape cutter 84 cuts the tape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding apparatus for binding a recorded sheet with one side edge covered with a tape-shaped member, and in particular connected to a recording apparatus such as a copying machine, a facsimile machine or a printer online. The present invention relates to a tape sticking method and device for a bookbinding device, which is suitable for incorporation in a recording device.

[0002]

2. Description of the Related Art In general, sheets of which recording has been completed by a recording device such as a copying machine, a facsimile machine, a printer, etc. are subjected to post-processing such as punching, binding with staples (staples),
Various processes such as cover attachment, glue binding, back tape (marble tape) binding, saddle stitch folding, folding, stamping, etc. are performed in particular. Because it is expensive, it is often done.

As a method for binding the back tape,
It is known that a tape to which a sticky adhesive is pre-applied at the time of heating is attached while being heated, or a tape to which a sticky adhesive is pre-applied when water is contained is used.
Although a method of using an adhesive tape having adhesiveness in a normal case is conceivable, this method is not currently used. When the strength of bookbinding is insufficient, stapling or binding with threads may be performed in advance, or at least a part of the tape may be glued and then taped.

The following two types of conventional tape application methods are known. First, for example, JP-A-6
2-284795, U.S. Pat. No. 4,985,72
No. 9, JP-A-3-151286,
The spine cover side of the recorded sheet bundle is pressed against the developed tape and heated, and the width direction of the tape is folded into the front cover side and the back cover side. A second method is known as a marble tape application, in which the tape is attached and the tape is folded while the tape and the sheet are run in parallel while one of the left and right sides of the sheet is used as a spine cover.

[0005]

However, in the above first conventional method, since the tape is attached to the spine cover of the sheet bundle and then folded to the front cover side and the back cover side, the type of sheet and the thickness of the sheet bundle are increased. Even if there are various fluctuation factors such as the above, if the tape can be attached with high reliability, the device becomes large in size and high in cost as seen in US Pat. No. 4,985,729. There is a problem.

Further, in the second conventional method, the tape is stuck and the tape is folded while the tape and the paper are run in parallel, so that the running path becomes long and the apparatus becomes large and costly. There is a point, and the tape sticking position of the paper is limited in the running direction of the paper,
There is a problem that the degree of freedom is low.

In view of the above conventional problems, the present invention is simple,
It is an object of the present invention to provide a tape sticking method and device for a bookbinding device, which can carry out back tape sticking with a compact and low-cost structure.

[0008]

In order to achieve the above object, the first means is a tape sticking method for a bookbinding apparatus for forming a spine by sticking a tape in a U-shape at the end of a bundle of sheets. A step of feeding out the tape from the tape holding means by relatively moving the tape holding means for holding the adhesive tape and the tape holding means for holding the free end of the tape in the width direction of the sheet bundle,
To the front edge of the front or back cover of the stack of paper,
Positioning the tape so that the width direction thereof protrudes in the direction of travel by the spine surface of the sheet bundle and the other surface on the front cover side or the back cover side, and the tape gripping means with respect to the sheet bundle at the attachment start position. First pressing step of sticking the tape and the sheet bundle positioned at the sticking start position by pressing relative to each other, and the tape gripping means while the tape gripping means presses at the sticking start position. A second attaching step for attaching the tape by moving the means relatively in the width direction of the sheet bundle and a step for cutting the tape at the attaching end position, and the protruding portion of the tape is attached to the sheet bundle. After being folded to the spine cover surface, the protruding portion of the tape is further folded and attached to the other surface of the sheet bundle on the front cover side or the back cover side.

The second means is a tape holding device for holding an adhesive tape in a tape sticking device of a bookbinding device for forming a spine by sticking a tape in an U-shape on the end of a sheet bundle. A tape gripping means for gripping the free end of the tape, and a tape feeding means for feeding the tape from the tape holding means by relatively moving the tape holding means and the tape gripping means in the width direction of the sheet bundle, Position the tape so that the width of the tape extends beyond the leading edge of either the front or back cover side of the stack in the direction of travel by the width of the spine side of the stack and the other side of the front or back cover side. The positioning means and the tape gripping means at the sticking start position are pressed relative to the sheet bundle, whereby the positioning is made at the sticking start position. A sticking means for sticking the tape by adhering the paper bundle and the tape and moving the tape gripping means relatively in the width direction of the paper bundle in the pressed state, and cutting for cutting the tape at the sticking end position And fold the protruding portion of the tape on the spine cover surface of the sheet bundle, and further fold and stick the protruding portion of the tape to the other surface of the front side or the back cover side of the sheet bundle. Has been done.

In a third means, the tape gripping means of the second means has a pair of gripping members that respectively support the adhesive surface side and the back surface side of the tape, and the adhesive surface gripping member is the tape. It is configured so that only the protruding portion can be supported.

In a fourth means, the tape gripping means of the second means has a pair of gripping members that respectively support the adhesive surface side and the back surface side of the tape, and the gripping members press the tape against the paper. The tape is moved obliquely with respect to the paper surface so that only one side presses the tape against the paper when the tape is moved from the tape sticking start position so that the gripping member on the adhesive surface side comes off the free end of the tape. It is arranged to move back towards the holding means.

In a fifth means, the tape gripping means of the second to fourth means is composed of a pair of rollers, and at least one of them is provided with a means for prohibiting rotation in the tape opening direction. ing.

The sixth means is such that the gripping member for supporting the adhesive surface side of the tape in the third or fourth means retracts from the adhesive surface side when moving from the sticking start position to the sticking end position. Is configured.

The seventh means is constructed such that the tape holding means of the second means moves to a pasting end position according to the paper size before the pasting starts.

The eighth means is such that the tape cutting means of the second means is movable in the width direction of the sheet bundle integrally with the tape gripping means, and is engaged with the tape holding means at the sticking end position. By doing so, the tape is cut.

The ninth means has a pressing member for pressing the sheet bundle against the tape gripping means in the second means, and the pressing member prevents interference with the tape cutting means. It has a configuration in which the concave portion is formed at a position corresponding to the attachment end position.

In a tenth means, the pasting means of the ninth means comprises a pressing member for pressing the sheet bundle against the pressing member.

The eleventh means drives the tape feeding means in response to the recording start signal from the recording device in the second means, completes the recording of a part of the sheet bundle of the recording device, and positions the positioning means. After the completion, it has a configuration including a control means for sequentially driving the pasting means and the tape cutting means.

[0019]

With the first and second means, the tape holding means and the tape gripping means are relatively moved in the width direction of the sheet bundle to feed the tape after the tape is attached. Can be reduced,
Therefore, it is possible to prevent the deformation of the paper and apply the back tape with a simple, small-sized and low-cost structure.

In the third means, since the gripping member on the adhesive surface side can support only the protruding portion of the tape, it is possible to prevent interference between the gripping member on the adhesive surface side and the sheet bundle.

In the fourth means, since the adhesive surface of the tape is not supported by the gripping member when the tape is pressed in the width direction, the tape can be evenly attached.

In the fifth means, at least one of the pair of rollers is prohibited from rotating in the direction of opening the tape, so that the load when the rollers move in the width direction of the sheet bundle can be reduced.

In the sixth means, when the gripping member supporting the adhesive surface side of the tape moves from the sticking start position to the sticking end position, it is retracted from the sticky surface side, so that the gripping member moves smoothly. be able to.

In the seventh means, since the tape holding means moves according to the size of the paper before the start of sticking, it is possible to prevent the loss of the tape feeding time and the wasteful feeding of the tape when the tape is replaced.

In the eighth means, the tape cutting means and the tape gripping means can be moved integrally with the tape gripping means in the width direction of the sheet bundle, so that an unnecessary power source can be omitted.

In the ninth means, since the pressing member for pressing the sheet bundle against the tape gripping means has the concave portion for preventing the interference with the tape cutting means, the tape is cut even when the sheet bundle is thin. be able to.

In the tenth means, since the sticking means presses the sheet bundle, it is possible to prevent the positional deviation of the sheet bundle during sticking.

In the eleventh means, the tape can be fed out in parallel with the recording operation of the recording apparatus, so that the extra time for feeding the tape can be omitted and the recording and the bookbinding can be efficiently performed.

[0029]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing a tape sticking device of a bookbinding machine according to the present invention, FIG. 2 is an explanatory view showing a tape sticking method of the tape sticking device of FIG. 1, and FIG. 3 is equipped with the tape sticking device of FIG. FIG. 4 is a perspective view for explaining the operation of the back tape applying section, FIG. 4 is a perspective view showing the tape gripping unit of FIG. 1, FIG. 5 is a side view showing the tape applying device of FIG. 1, and FIG. FIG. 4 is a side sectional view showing a digital copying machine in which a bookbinding machine having a tape sticking device is incorporated.
8 is an explanatory view showing a modified example of a roller pair of the tape gripping unit, FIG. 8 is a perspective view showing the tape folding portion of FIG. 3 in detail, and FIG. 9 is a main part perspective view showing the pressing member of FIG.

First, the copying machine will be described with reference to FIG. 6. A bundle of documents D set on a known circulation type document conveying device 20 is sequentially sent out from the first sheet below and is placed on the platen glass 21. After being placed and read by the scanner 22, the document is returned to the circulation type document feeder 20 and stacked on the stack of documents D. An image of the document D read by the scanner 22 is subjected to known image processing and then an electrostatic latent image is formed on the photoconductor 24 by the optical writing device 23.

Although not described in detail, the scanner 22 is composed of a light source, a reflection mirror and a photoelectric conversion element such as CCD, and the optical writing device 23 is a laser diode, a polygon mirror and an f-θ lens. Etc. The electrostatic latent image formed on the photoconductor 24 is developed by a known electrophotographic process and the toner image is transferred to the paper P. The electrophotographic process mechanism transfers the photoconductor 24, the charger 9 and the transfer device. The container 11 includes a cleaning unit 12, a fixing device 13, and the like.

The paper P is selectively conveyed from one of the built-in trays 16A to 16D and the trays 6a to 6d in the optional paper feeding device 6, and the transfer device 11 transfers the toner image on the photoconductor 24. Then, the toner image is fixed by the fixing device 13 and conveyed to the bookbinding machine 4 of the present embodiment. In the case of double-sided copying, the paper P fixed by the fixing device 13
Are guided and stacked on the lower double-sided tray 18 by the branching claw A (P 'in the drawing), and the reversing device 1 below the stacking device 1 is stacked.
After being turned upside down by 9, the sheet is guided again to the transfer device 11.

In this embodiment, a digital copying machine will be described as an example of the recording apparatus, but it can be applied to an analog copying machine, another recording apparatus such as a facsimile machine, a printer, or the like. The bookbinding machine 4 may not only be connected to the copying machine online as in the present embodiment, but may also be constructed offline.

The bookbinding machine 4 is connected to the paper discharge port of the copying machine. When the bookbinding is not performed, the paper P is branched by the branching claw C.
The sheet is guided upward by and is discharged onto the sheet discharge tray 41 as it is. On the other hand, in the case of bookbinding, the sheets P are guided downward by the branching claws C, and then stacked on the staple tray 42 that is inclined so that the left side of the drawing is upward. Then, the paper P discharged onto the staple tray 42 descends due to gravity and the brush roller 43, and its lower end comes into contact with the reference member 44 and stops. Although not shown, a jogger for aligning the bundle of sheets P in the width direction (a direction orthogonal to the drawing) is provided, and the jog and the reference member 44 stack the bundle of sheets P at a predetermined position. Is stuck in.

The reference member 44 is movable along the conveyance direction of the paper P, moves to the stack position in the case of side stitching (edge binding), and moves to the stack position in the case of saddle stitching (center binding).
To a position corresponding to the size of the sheet, and stapling is performed by the known stapler 45 at this position. The sheet P after stapling is conveyed upward along the inclined surface of the staple tray 42 and discharged onto the discharge tray 41 when the tape is not attached, and in the middle of the staple tray 42 in the case of saddle stitching. It is folded in two at the binding portion by the folding device 46 provided, and has a path 47 in the form of so-called saddle stitch binding.
Is discharged through.

When applying the tape according to the present invention,
The paper P after stapling is guided to the path 48 by the branching claw E provided on the lower side of the staple tray 42, and one side edge is taped by the back tape sticking portion 50. As shown in FIGS. 1 to 5, the rear tape attaching section 50 has an adhesive tape T with respect to one of the front end of the sheet bundle P on the front cover side or the back cover side and the width direction of the spine cover surface of the sheet bundle P. And a tape sticking portion 80 that sticks out by the other side of the front cover side or the back cover side in the traveling direction, and the protruding tape T as shown in FIG. 3 and FIG. It has a tape folding section 50b for folding on the surface) and then on the side opposite to the surface on which the paper P is attached.

Next, the tape attaching section 80 will be described in detail with reference to FIGS. In this embodiment, the free ends of the tape T are held by the roller pairs 81a and 81b as shown in FIG. 3, and the axial length of the roller pair 81a on the pressing side is the tape T as shown in FIG. The roller pair 81b, which is slightly longer than the width and is on the adhesive surface side of the tape T, is
The axial length of the tape T is configured to substantially match the protrusion of the tape T so as not to interfere with the tip of the tape.

The roller pairs 81a and 81b are constituted by unidirectional roller clutches, and are mounted on a tape gripping unit 80a as shown in detail in FIG. As shown in FIG. 1, the tape gripping unit 80a is configured to be movable in the width direction of the sheet bundle P by the motor M4. The tape cartridge 82 (see FIGS. 1 and 5) is mounted on the carriage 82a and is configured to be movable in the width direction of the sheet bundle P by the motor M5. Therefore, when the tape gripping unit 80a moves, the tape T is delivered from the tape cartridge 82. Tape gripping unit 8
Further, as shown in FIGS. 1 and 4, a solenoid 83 for moving the roller pair 81b on the adhesive surface side in the pressing direction or the releasing direction and a tape cutter 84 for cutting the tape T are mounted on 0a. There is.

The operation of the tape gripping unit 80a will be described with reference to FIGS. 1 and 5. First, the leading end of the sheet bundle P is conveyed to the attaching position by the sheet holding surface of the sheet holding member 51 and the roller pair 52. In the state, it is retracted from the conveying path of the sheet bundle P, and the tape gripping unit 80a moves to the tape attaching start position with the solenoid 83 turned on as shown in FIG. 1 before the sheet bundle P reaches the attaching position. Then, the tape cartridge 82 moves to the tape sticking end position. Therefore, the roller pair 81b on the adhesive surface side
Moves in the pressing direction, so that the tape T is pulled out from the tape cartridge 82 with tension by the roller pair 81a and 81b by the distance corresponding to the tape sticking.

When the bundle of sheets P is stopped at the attaching position, the tape gripping unit 80a is rotated by the solenoid 85 to the attaching position where the tape T protrudes from the tip of the bundle of sheets P as shown in FIG. Then, after the solenoid 83 is controlled to be turned on and the roller 81b on the adhesive surface side is rotated in the detaching direction, when the tape gripping unit 80a moves from the tape sticking start position to the tape sticking end position,
When the tape T is pressed by the roller 81a and attached to the sheet bundle P, and the tape gripping unit 80a reaches the tape attaching end position, the engaging end 84a of the tape cutter 84.
Comes into contact with the holding member 86 of the tape cartridge 82, and the tape cutter 84 rotates to cut the tape T.

Since the tape gripping unit 80a and the tape cartridge 82 move relative to each other when the tape T is drawn out, only the tape cartridge 82 may be moved. As for the conveyance timing of the sheet bundle P, whichever comes first,
The above example performed in parallel is more efficient.

Here, when the roller pair 81a, 81b grips the tape T from both sides when the sheet bundle P is pressed, the roller 81b on the adhesive surface side interferes with the sheet bundle P, but as shown in FIGS. The interference can be prevented by forming the length of the roller 81b on the adhesive surface side in the axial direction to be about half the tape width.

In order to grip the entire tape width,
As shown in FIG. 7, a pair of rollers 81a and 81b 'may be arranged obliquely with respect to the paper surface to grip the free end of the tape T, and only the roller 81a on the back side presses the tape T when pressing. Good. In this case, the roller 8 on the adhesive surface side
The axial length of 1b 'can be configured on the roller 81a. In this case, the tape holding unit 80a is arranged so that the roller 81b 'on the adhesive surface side is separated from the free end of the tape T.
After the tape T is once moved to the free end side of the tape T, the tape T is surely attached over the entire length by returning to the tape cartridge 82 side.

Here, when a plate-like member that does not move itself is used instead of the roller pair 81a and 81b, when the sheet bundle P is pressed from the back surface of the tape T to move, Although the moving load may increase, the sheet bundle P may be deformed by this load, and curl may occur, the above-mentioned problem can be prevented by using the roller pair 81a and 81b. Further, since the one-way clutch blocks the rotation of the tape T in the opening direction, the tape T can be gripped and fed out.

Furthermore, since the tape gripping function is not required during the pressing movement, the roller 81b on the adhesive surface side can be retracted, and therefore the load can be reduced. Further, by releasing the grip immediately after pressing, the tape T can be smoothly moved to the free end side.

Further, since the tape gripping unit 80a and the tape cartridge 82 independently move in the width direction of the sheet bundle P according to the width of the sheet bundle P, the feeding length of the tape T can be minimized. Therefore, it is possible to prevent the loss of the feeding time, and it is possible to prevent the workability from being deteriorated by the extra feeding tape when the tape is replaced.

As shown in FIG. 4, the tape gripping unit 80a is provided with a rotatable tape cutter 84, and the tape cutter 84 is urged by the spring 84b in the direction in which the blade portion moves away from the tape T. When the joint end 84a comes into contact with the holding member 86 of the tape cartridge 82, the blade portion is configured to move in the direction of the tape T against the biasing force, so that no extra device or power source is required. Of course, the tape cutter 84 may be driven by a solenoid instead.

Further, as shown in FIG. 5, the attaching portion 80 is provided with a holding member 51 for holding the sheet bundle P from the side opposite to the attaching surface, so that the number of sheet bundles P is reduced. If the number is small, the blade of the tape cutter 84 may interfere with the holding member 51 when the tape is cut. However, as shown in FIG. 1, the holding member has a recess 51a into which the blade of the tape cutter 84 enters for each size of paper. The above-mentioned problem can be prevented by providing it in 51.

Further, as shown in FIG. 5, the pasting unit including the tape gripping unit 80a is provided with the pressing portion 62b for pressing the sheet bundle P against the holding member 51. It is possible to prevent the bundle P from being deformed. Although this pressing source is the solenoid 85 for swinging the attaching unit, since it presses through the leaf spring 53, an appropriate pressing force can be obtained.

Next, the tape folding section 50 shown in FIG.
The detailed configuration of b will be described with reference to FIGS. 8 and 9.
When the tape application is completed, the roller pair 72 and the motor M6 stop until the protruding portion (T1 in the figure) of the tape T, which is the direction away from the roller pairs 71a and 71b, passes over the first roller 71a and is stopped. To do. At this stop position, a guide member 73 for guiding the tape attachment surface side of the sheet bundle P and a pressing member 74 for pressing the opposite surface are arranged.

The guide member 73 and the pressing member 74 are both rotatable about a shaft 75, and the pressing member 74
Guides the sheet bundle P by retracting to the position of the stopper 77,
When pressed by the solenoid 76 to rotate and contact the pin 73a of the guide member 73, the guide member 73 and the pressing member 74
Bends the leading end of the sheet bundle P to the nip portion of the roller pair 71a, 71b, so that the protruding portion T of the tape T
1 is folded along the spine surface of the sheet bundle P by 90 ° (see FIG. 3).
The protruding portion T2). In addition, in FIG. 3, the motor M3 is shown to be rotatable, but either may be used. Also,
A cushioning spring 74a is attached to the pressing member 74.

Next, when the motors M6 and M7 are driven and the leading edge of the sheet bundle P is gripped in the nip portion of the roller pairs 71a and 71b, the protruding portion T2 of the tape T is further folded to the opposite side of the sheet bundle P. Rarely, it is folded into a U-shape (T3 in the figure) as shown in FIG.

Here, the tape folding section 50 shown in FIG.
In the first folding step of b, the pressing member 74 presses the sheet bundle P against the second roller 71b, whereby the position of the sheet bundle P with respect to the nip portion can be stabilized. Further, in the second folding process, the strong conveyance force can be applied to the leading end of the sheet bundle P by driving the second roller 71b, so that the sheet bundle P can be gripped more surely in the nip portion.

Further, in the process of transporting from the pasting position to the folding position, if the protruding portion T1 of the sheet bundle P or the tape T has a curl, the roller 7 close to the path.
1b and further deformed, or roller pair 71a, 7
The position with respect to 1b may be defective and the folding of the tape T may be incomplete. Therefore, by providing the guide member 73 between the roller pairs 71a and 71b and the path as shown in FIG. 8, the progress of the sheet bundle P can be stabilized and positioned. Further, since the guide member 73 is pushed and displaced by the sheet bundle P when being pushed, it does not interfere with folding.

In FIG. 8, roller pairs 71a, 71
Although b is configured so as not to intersect with the extension surface of the tape attachment surface of the sheet bundle P, the tip of the sheet bundle P is curved by arranging it by appropriately setting the shape and position of the guide member 73. The degree of freedom can be improved.

In the vicinity of the sheet bundle P to which the tape T is attached and folded, there are cases where the flatness is low due to pre-binding such as stapling, gluing, thread binding, and wavy curling due to moisture absorption and moisture release. . For this purpose, the roller pair 7
By configuring at least one of 1a and 71b by an elastic body such as rubber or foam material, it is possible to reduce the variation in the above-mentioned pasting and folding regions, and to realize tape pasting without sticking defects or peeling. it can.

Further, in the case where stapling is performed as preliminary bookbinding as in the present embodiment, the pressure contact force against the roller 71a becomes uneven during the first folding in which the needle is pressed by the pressing member 74, A problem such as a needle being caught when the sheet bundle P advances during the second folding occurs. Therefore, as shown in FIG. 9, the notch 74 is provided at the position of the pressing member 74 corresponding to the staple S binding the bundle of sheets P.
By forming a or a dent, the above-mentioned inconvenience can be eliminated and stable folding of the tape T can be performed.

Here, as shown in FIG. 6, when the bookbinding machine 4 and the paper transport path of a recording apparatus such as a copying machine are connected online, the bookbinding machine 4 inputs an instruction from the operation unit on the recording apparatus side. Thus, a control is also possible for a recording system that automatically binds books online, but in this case, how to efficiently perform the printing operation including the bookbinding operation becomes a problem.

FIG. 10 shows the control system of the bookbinding machine 4 and the recording apparatus, and FIG. 11 shows the operation of the control unit 100 of the bookbinding machine 4. In FIG. 10, the bookbinding machine 4 includes a control unit 100, the tape attaching unit 80, the tape folding unit 50b, and the like, and the recording device includes a control unit 110 and a paper size signal generation device 111.
And an operation unit 112 and the like.

When the bookbinding start signal is not received as shown in FIG. 11, the control unit 100 of the bookbinding machine 4 executes step S4.
From 1 to step S42 and thereafter, when the recording apparatus executes recording, it waits until the recording of one copy is completed (step S43), and when the recording is completed, the paper is ejected to the paper ejection tray 42 as it is (step S44). Then, this process is repeated for each copy, and when the recording of all the copies is completed, this process ends (step S45).

On the other hand, when the bookbinding start signal is received in step S41, the process proceeds to step S46 and thereafter, and when recording is started on the recording device side, the tape T feeding process is executed (step S47), and the recording device side is executed. The sheets are stacked and positioned while recording is continued (steps S48, S
49). In this case, when the instruction to staple the sheet bundle with the staple is received from the recording apparatus side, the processing is executed.

When the recording of one copy is completed (step S50), the above-mentioned tape attaching process is executed (step S51), the tape folding process is executed (step S52), and the bundle of papers is ejected to the paper ejection tray. It is discharged to 42 (step S53). This process is repeated for each copy, and when the recording of all copies is completed, this process ends (step S
54). In this case, when the paper size signal command is received from the recording apparatus side, tape attachment is performed according to the size.

Therefore, according to this example, when the recording apparatus records on a sheet, the tape is extended in parallel, so that no extra time is required for the tape to be extended. Therefore, when the number of copies is large, the recording is performed. And the bookbinding can be performed efficiently.

[0064]

As described above, according to the first aspect of the present invention, in the tape attaching method of the bookbinding device for forming the spine cover by attaching the tape to the end of the sheet bundle in a U-shape, Of feeding the tape from the tape holding means by relatively moving the tape holding means for holding the tape having the property and the tape holding means for holding the free end of the tape in the width direction of the paper bundle; A step of positioning the tape so that the width direction thereof sticks out in the traveling direction by the width of the spine surface of the sheet bundle and the other surface of the front cover side or the back cover side with respect to one of the front end of the front cover side or the back cover side, By pressing the tape gripping means relative to the sheet bundle at the attaching start position, the tape is attached to the sheet bundle positioned at the attaching start position. An attaching step, and a second attaching step of attaching the tape by relatively moving the tape holding means in the width direction of the sheet bundle while the tape holding means is pressed at the attaching start position. Cutting the tape at the attachment end position, folding the protruding portion of the tape on the spine cover surface of the sheet bundle, and then further protruding the protruding portion of the tape on the other side of the front cover side or the back cover side of the sheet bundle. Since the tape is folded and attached, the tape feeding load can be reduced, and therefore, the deformation of the paper can be prevented and the back tape attachment can be performed with a simple, small-sized and low-cost structure.

According to a second aspect of the present invention, in a tape sticking device of a bookbinding device for forming a spine cover by sticking a tape in a U-shape on an end of a bundle of sheets, a tape holding an adhesive tape Holding means, tape holding means for holding the free end of the tape, and tape feeding means for feeding the tape from the tape holding means by relatively moving the tape holding means and the tape holding means in the width direction of the sheet bundle. The width of the tape so that it extends beyond the leading edge of either the front or back cover side of the stack in the direction of travel by the width of the spine side of the stack and the other side of the front or back cover side. By positioning the positioning means for positioning and the tape gripping means relative to the sheet bundle at the sticking start position, the position is determined at the sticking start position. Paste the sheet bundle and the tape that has been,
The tape gripping means has a sticking means for sticking the tape by relatively moving the tape gripping means in the width direction of the sheet bundle in the pressed state, and a cutting means for cutting the tape at the sticking end position. After the protruding part of the tape is folded on the spine cover side of the paper stack, the protruding part of the tape is further folded and pasted on the other side of the front side or the back cover side of the paper stack, so the tape feeding load can be reduced. Therefore, it is easy to prevent the deformation of the paper,
Backside tape can be attached with a compact and low-cost structure.

According to a third aspect of the present invention, the tape gripping means has a pair of gripping members that respectively support the adhesive surface side and the back surface side of the tape, and the adhesive member on the adhesive surface side is only the protruding portion of the tape. Since it is configured to support
It is possible to prevent interference between the gripping member on the adhesive surface side and the sheet bundle.

According to a fourth aspect of the present invention, the tape gripping means has a pair of gripping members that respectively support the adhesive surface side and the back surface side of the tape, and the gripping member is used when pressing the tape against the paper. Of the tape holding means is arranged obliquely with respect to the paper surface so as to press the tape against the paper, and after the gripping member on the adhesive surface side is moved from the tape sticking start position so as to be separated from the free end of the tape, Since it moves back in the direction, the tape can be evenly attached.

According to the fifth aspect of the invention, the tape gripping means is composed of a pair of rollers, and at least one of the means is provided with means for prohibiting rotation in the tape opening direction. The load when moving in the direction can be reduced.

According to the sixth aspect of the invention, the gripping member supporting the adhesive surface side of the tape is retracted from the adhesive surface side when moving from the sticking start position to the sticking end position. It can be done smoothly.

In the invention according to claim 7, since the tape holding means moves to the sticking end position according to the paper size before the sticking starts, loss of the tape feeding time and wasteful tape feeding at the time of tape replacement. Can be prevented.

According to the eighth aspect of the present invention, the tape cutting means is movable in the width direction of the sheet bundle integrally with the tape gripping means, and the tape cutting means engages with the tape holding means at the sticking end position to thereby tape Since the power source is cut off, a wasteful power source can be omitted.

According to a ninth aspect of the present invention, there is provided a pressing member for pressing the sheet bundle against the tape gripping means, and the pressing member is provided with a recess for preventing interference with the tape cutting means. Since the tape is formed at the position corresponding to the attachment end position, the tape can be cut even when the sheet bundle is thin.

According to the tenth aspect of the invention, since the attaching means has the pressing member for pressing the sheet bundle against the pressing member, it is possible to prevent the displacement of the sheet bundle at the time of attaching.

According to an eleventh aspect of the invention, the tape feeding means is driven in response to a recording start signal from the recording device, and the recording is completed after the recording of a part of the sheet bundle of the recording device and the positioning means complete the positioning. Since the control means for sequentially driving the attaching means and the tape cutting means is provided, the tape can be fed out in parallel with the recording operation of the recording apparatus, and therefore, the extra time for feeding the tape can be omitted and the recording and binding can be efficiently performed. Can be done on a regular basis.

[Brief description of drawings]

FIG. 1 is a plan view showing a tape sticking device of a bookbinding machine according to the present invention.

FIG. 2 is an explanatory view showing a tape applying method of the tape applying apparatus of FIG.

FIG. 3 is a perspective view for explaining the operation of a back surface tape adhering section including the tape adhering device of FIG.

4 is a perspective view showing the tape gripping unit of FIG. 1. FIG.

5 is a side view showing the tape adhering device of FIG. 1. FIG.

6 is a side sectional view showing a digital copying machine in which a bookbinding machine including the tape sticking device of FIG. 1 is incorporated.

FIG. 7 is an explanatory diagram showing a modified example of a roller pair of the tape gripping unit of FIG.

FIG. 8 is a perspective view showing in detail the tape folding portion of FIG.

9 is a perspective view of a main part of the pressing member shown in FIG.

FIG. 10 is a block diagram showing a control system when the bookbinding machine is connected to a recording apparatus.

11 is a flow chart for explaining the operation of the bookbinding machine in the case shown in FIG.

[Explanation of symbols]

 50b Tape folding portion 51 Pressing member 51a Recessed portion 80 Tape attachment portion 81a, 81b, 81b 'Roller 82 Tape cartridge 83, 85 Solenoid 84 Tape cutter M4, M5 Motor T Tape P Paper, paper bundle

Claims (11)

[Claims] 1. A tape attaching method for a bookbinding device, wherein a tape is attached to an end of a sheet bundle in a U-shape to form a spine, and a tape holding means for holding an adhesive tape and the tape A step of feeding out the tape from the tape holding means by moving the tape gripping means for gripping the free end relatively in the width direction of the sheet bundle, and one end of the front side or the back cover side of the sheet bundle,
Positioning the tape so that the width of the tape protrudes in the direction of travel by the spine surface of the stack of sheets and the other surface on the front cover side or the back cover side, and the tape gripping means with respect to the stack of sheets at the attachment start position. First pressing step of sticking the sheet bundle and the tape positioned at the sticking start position by pressing relative to each other, and the tape gripping means while the tape gripping means presses at the sticking start position. A second attaching step for attaching the tape by moving the means relatively in the width direction of the sheet bundle, and a step of cutting the tape at the attaching end position, wherein the protruding portion of the tape is attached to the sheet bundle. After folding on the spine surface of the book, the protruding portion of the tape is further folded and pasted on the other side of the front side or the back side of the sheet bundle. How to attach tape. 2. A tape applying device for a bookbinding device, wherein a tape is attached to an end of a sheet bundle in a U-shape to form a spine, and a tape holding means for holding an adhesive tape, and the tape. A tape gripping means for gripping the free end of the tape, a tape feeding means for feeding the tape from the tape holding means by relatively moving the tape holding means and the tape gripping means in the width direction of the sheet bundle, and a cover of the sheet bundle. Side or back cover side,
Positioning means for positioning the tape in the width direction so that it protrudes in the direction of travel by the spine side of the sheet bundle and the other side of the front cover side or the back cover side, and the tape gripping means is attached to the sheet bundle at the attachment start position. By pressing relative to each other, the tape is stuck to the sheet bundle positioned at the sticking start position, and the tape gripping means is relatively moved in the width direction of the sheet bundle in this pressed state. It has a sticking means for sticking the tape and a cutting means for cutting the tape at the sticking end position, and after the protruding portion of the tape is folded on the spine surface of the sheet bundle, the protruding portion of the tape is further cut into the sheet bundle. A tape sticking device for a bookbinding device, which is folded and stuck to the other surface of the front cover side or the back cover side. 3. The tape gripping means has a pair of gripping members that respectively support the adhesive surface side and the back surface side of the tape,
The holding member on the adhesive surface side is configured to be able to support only the protruding portion of the tape.
The tape sticking device of the bookbinding device described in. 4. The tape gripping means has a pair of gripping members that respectively support the adhesive surface side and the back surface side of the tape,
The gripping members are arranged obliquely with respect to the paper surface so that only one of them presses the tape against the paper when the tape is pressed against the paper, and the gripping member on the adhesive surface side is detached from the free end of the tape. 3. The tape sticking device of the bookbinding device according to claim 2, wherein the tape sticking device moves back from the sticking start position and then returns to the tape holding means. 5. The tape gripping means comprises a pair of rollers, at least one of which has means for prohibiting rotation in a tape opening direction. The tape sticking device of the bookbinding device described in. 6. The holding member for supporting the adhesive surface side of the tape is retracted from the adhesive surface side when moving from the sticking start position to the sticking end position. Bookbinding equipment. 7. The tape sticking device of the bookbinding apparatus according to claim 2, wherein the tape holding means moves to a sticking end position according to a paper size before the start of sticking. 8. The tape cutting means is movable in the width direction of the sheet bundle integrally with the tape gripping means, and cuts the tape by engaging with the tape holding means at a pasting end position. The tape sticking device of the bookbinding device according to claim 2. 9. A pressing member for pressing the sheet bundle against the tape gripping means, and a recess for preventing interference with the tape cutting means corresponds to the pasting end position on the pressing member. The tape applying device for the bookbinding device according to claim 2, wherein the tape applying device is formed at a position. 10. The tape adhering device for a bookbinding apparatus according to claim 9, wherein the adhering means has a pressing member for pressing the sheet bundle against the pressing member. 11. The tape feeding means is driven in response to a recording start signal from a recording device, and after the recording of a part of a sheet bundle of the recording device is completed and the positioning means completes the positioning, the pasting means and the tape are cut. The bookbinding apparatus according to claim 2, further comprising control means for sequentially driving the means.