JPH07309519A - Sheet bundle binding device and sheet after-treatment device - Google Patents

Abstract

PURPOSE:To enable the recycle of a needle cartridge, needles of which can be used repeatedly, and reduce the part which is wasted at the time of supplying needles, so as to reduce the running cost. CONSTITUTION:A needle housing unit 101 of a needle cartridge 100A, in which plural needle belts N are laminated for housing, is formed so that a rear plate 111 can be moved upward for opening. When the rear plate 111 is moved upward, a needle presser plate 107 is lifted by a shifter member 112, and the needle housing unit 101 is formed with a needle housing space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet bundle binding device (stapling unit) which staples a plurality of sheets discharged from an image forming apparatus such as a copying machine, a printing machine, and a recording device.

[0002]

2. Description of the Related Art A sheet post-processing apparatus (sorter, finisher, etc.) for post-processing sheets discharged from an image forming apparatus such as a copying machine, a printing machine, or a recording machine staples a bundle of aligned sheets. Some are equipped with a sheet bundle binding device.

FIG. 13 shows a typical configuration example of a sheet bundle binding device provided in a conventional sheet post-processing device.

In the present sheet bundle binding apparatus, a needle belt N in which a plurality of needles are connected in a horizontal row is used. A plurality of needle belts N are stacked and housed in a needle cartridge (needle housing means) 69 shown in FIG. Further, the stacked needle belts N in the needle storage portion 69a are urged from above by a needle pressing spring (coil spring) 69e integral with the needle cartridge 69 via a needle pressing plate 69d. . As a result, an auxiliary carrying force for carrying the needle belt N can be obtained.

The needle cartridge 69 has an upper unit 67.
Is removably attached at a predetermined position. At this time,
The lowest needle belt N1 in the needle accommodating portion 69a comes into contact with the needle feed belt 67a at a predetermined pressure through an opening (not shown).

The needle belt N laminated in the needle storage portion 69a is the needle feed belt 67a in order from the lowest needle belt N1.
Sent out by. FIG. 14 shows the lowermost needle belt N1
Shows the state in which the needle is sent out from the needle storage portion 69a.

The needle at the tip of the lowest needle belt N1 sent out by the needle feed belt 67a is located at a predetermined position together with the needle driving portion 67b on the upper unit 67 side which rotates in the arrow Y direction around the support shaft 67c. The sheet bundle P aligned on the bin or the like is driven by the needle driving portion 68a on the lower unit 68 side. At this time, the sheet bundle P is sandwiched between the upper unit 67 and the lower unit 68.

The needle belt N accommodated in the needle accommodating portion 69a is detected by a needle detecting means (reflection type optical sensor) 93. Then, based on the information from the needle detection means 93, the needle feed determination means 95 determines whether or not the needle feed is normally performed. As a result, when the staple feeding is abnormal without staples, the staple feeding determining means 95 outputs a signal to the staple driving prohibiting means 301 to stop the staple driving operation in the sheet bundle binding device, and at the same time, Display device 30
A message indicating that there is no needle is displayed on 2.

When the needle in the needle cartridge 69 becomes empty, the operator needs to use the used needle cartridge 69.
Is removed from the upper unit 67, and the unused needle cartridge 69 filled with the needle belt N is removed from the upper unit 6
Set to 7.

[0010]

However, the staple cartridge 69 provided in the above-described sheet bundle binding device of the conventional example is as follows.
The used needle cartridge 69 with the needle emptied is expensive by the operator although it is expensive because of the structure including the needle pressing spring 69e and the needle pressing plate 69d (needle biasing portion). It cannot be reused because it cannot be filled. Therefore, the parts that are wasted when replenishing the needles (needle cartridge 69, needle pressing spring 69e, needle pressing plate 6)
9d) is large, which has been a cause of increasing the running cost in the sheet bundle binding device.

Therefore, the present invention has been made in view of the above circumstances, and the operator can manually store the needle belt in the empty needle storage portion, and the needle storage can be repeatedly used during needle supply. An object of the present invention is to provide a sheet bundle binding device including a means.

[0012]

SUMMARY OF THE INVENTION According to the present invention, a needle housing portion (101) for accommodating a plurality of needle belts (N) in which a plurality of needles are connected in a row in a row, and the needle housing portion (101). 101)
And a needle urging portion (102) for urging the needle belt (N) stored in the sheet bundle to give an auxiliary conveyance force, and can be detachably attached to the sheet bundle binding device body (67). The present invention relates to a sheet bundle binding device equipped with attached needle storage means (100A).

In order to achieve the above object, the present invention provides a needle storage part opening means for opening a part of the needle storage part (101) while releasing the needle biasing force of the needle biasing part (102). (111) is provided in the needle storage means (100A).

[0014]

The needle accommodating means (100A) provided in the sheet bundle binding device of the present invention having the above-described structure operates the needle accommodating portion opening means (111) to operate the needle biasing portion (10).
It is possible to open a part of the needle housing portion (101) while releasing the needle biasing force of 2).

Therefore, when the needles in the needle storage unit (101) become empty, a part of the needle storage unit (101) is opened, and a plurality of layers are stacked in the needle storage unit (101) by the operator's hand. The needle belt (200) can be stored.

As a result, the needle storing means (100A) with empty needles can be repeatedly used, there is no waste of parts when replenishing the needles, and the only consumable item is the staples. The running cost of the device can be reduced.

The reference numerals in parentheses refer to the drawings and do not limit the structure of the present invention.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. <Embodiment 1> FIGS. 1 and 2 show the overall construction of a sheet bundle binding apparatus according to Embodiment 1 of the present invention. 1 is a vertical side view, and FIG. 2 is a transverse plan view.

A sheet bundle binding device (hereinafter referred to as a binding device) 66 shown by a two-dot chain line rectangle in FIG. 2 is a general electric stapler, and a needle belt N in which a plurality of needles are connected in one horizontal row. With a needle cartridge 100A that can store multiple stages,
A needle feed belt 67a that sequentially feeds the needle belt N from the needle cartridge 100A to the needle driving portion and a needle at the tip of the needle belt N sent by the needle feed belt 67a are sequentially driven into the sheet bundle P to perform staple binding. Needle driving part 67
b, 68a.

The staple driving portion 67b has a rotation center 67c, and the staple unit 67b is moved by the upper unit 67 (movable in the Y direction in FIG. 1) and the lower unit 68 of the sheet bundle P sandwiching each other. Done.

The binding device 66 has a stapler cover 70 for covering a motor and a drive system (not shown).
Are fixed to the stapler attachment sheet metal 71 with screws, and the stapler attachment sheet metal 71 fixes the binding device 66 main body with screws.

Further, the stapler attachment sheet metal 71
Is fixed to a moving table 72 for reciprocating the binding device 66 with screws.

As shown in FIG. 2, a moving guide 73 and a slider roller 75 are fixed to the lower part of the moving table 72. Gears (1) 76 and gears (2) are driven by a stapler driving motor (not shown). It is transmitted to the ring gear 79 via 77.

The ring gear 79 has two recesses 79b and a protrusion 79a that engages with the roller slider 75.
It is configured to be rotatable in the middle A direction. Ring gear 7
Since the projection 79a rotates 180 ° when the shaft 9 is rotated half a turn, the roller slider 75 can move a distance corresponding to the rotation diameter of the projection 79a of the ring gear 79.

The moving guide 73 is a stapler fixing sheet metal 8
It engages with the guide shaft 81 attached to No. 0, and the movable table 72 on which the binding device 66 is placed can be moved in parallel with the ring gear 79.

The rotation detecting micro switch 82 has its actuator portion 82a provided at a position corresponding to the recess 79b of the ring gear 79, and detects ON / OFF every half rotation of the ring gear 79.

Binding device position detection micro switch 83
Is engaged with a cam 85 attached to the side surface of the movable table 72, and is turned off when the binding device 66 is in the retracted position retracted from the bin B, and is turned on at other times.

A transmissive optical sensor 86 having a U-shape and capable of sensing the sheet bundle P from the upper and lower projections is provided at one end of the moving table 72, and the binding device 66 reaches the sheet binding position. Sometimes, the sheet bundle P can be detected.

The binding device 66 and the unit that allows the binding device 66 to reciprocate are fixed to the side plate 3 of the sheet post-processing device to be described later.

The taper guide 87 has a taper shape on the leading edge side of the sheet entrance so that the leading edge of the sheet bundle P is not flipped or displaced when the binding device 66 advances onto the sheet bundle P (sheet binding position). It has become.

The taper guide 87 is rotatable about a rotation center 87a, and the rear end portion 87b is usually a spring means (not shown) counterclockwise so as to actuate the stapler safety micro switch 89. Is urged by.

Then, for example, the binding device 66 uses the sheet bundle P
When the foreign matter (for example, the operator's hand) or the sheet bundle P having a thickness equal to or more than the binding capacity of the binding device 66 is located on the bin B when advanced to the top (sheet binding position), the bin B and the taper guide bottom 90 as a fixed seat 8 on the taper guide
A moment is generated that pushes up the tip of the tape 7, and the taper guide upper part 87 rotates clockwise around the rotation center 87a, which turns off the safety micro switch 89 and energizes the binding device 66. It is configured to shut off in a hardware manner.

The upper portion of the stapler cover 70 is
It has an interlock arm 91 having a rotation center 91a. The interlock arm 91 is normally biased in a counterclockwise direction by a spring means or the like (not shown). An actuate plate 92 provided on the side plate 3 is arranged above the interlock arm 91,
With the reciprocating movement of the binding device 66 in the direction of FIG. 1X, the interlock arm 91 is in the position indicated by the solid line when the binding device 66 is in the sheet binding position, and the tip portion of the actuate plate 92 is in the retracted position. The interlock arm 91 is brought into contact with, and the lower part of the arm of the interlock arm 91 is rotated and pushed down to the upper part of the staple cartridge 100A of the binding device 66 as indicated by reference numeral 91X.

Next, the staple detection of the binding device 66 will be described.

The reflection type optical sensor 93 as the needle detecting means shown in FIG. 1 is a high-sensitivity sensor provided with a spot light source so as to face the lower side of the needle belt N. The sensor 93 receives the reflected light from the lower surface of the needle belt N, converts it into an electric signal, and outputs it. The needle feed determination means 95 receives a signal from the sensor 93, determines whether the needle feed state is normal, and outputs the state to the display device 302 provided in the operation unit or the like of the sheet post-processing apparatus, and at the same time, A signal is issued to the stapling prohibiting means 301.

3 and 4, the needle cartridge 100A is shown.
The detailed configuration of is shown.

The present needle cartridge 100A can be attached to and detached from the upper unit 67, and can be detached from the upper unit 67 when replenishing the needles and the needles can be filled by the operator's hand.

The needle cartridge 100A includes a needle housing portion 101 for accommodating a plurality of needle belts N stacked together and a needle housing portion 1.
01 has a needle urging portion 102 for urging the needle belt N stored in 01 to give an auxiliary conveyance force, and a guide portion 103 for guiding the needle belt N fed out from inside the needle storage portion 101. .

The needle biasing unit 102 is installed on the upper portion of the needle storage unit 101. The needle biasing unit 102 is provided in the needle storage unit 1
A biasing spring (coil spring) 105 fixed vertically to the lower surface of the cover member 104 covering the upper part of 01, and a needle pressing plate 107 fixed to the lower end of the biasing spring 105 via a spring seat member 106. It consists of

When the cover member 104 is attached to the needle accommodating portion 101, the needle biasing portion 102 is arranged above the needle accommodating portion 101. At this time, the urging spring 105 is extended to the maximum as shown in FIG.
The bottom plate 108 of FIG.

The cover member 104 is attached to the needle accommodating portion 101 as follows.

First, the left and right protrusions 104a, 104 at one end
b is fitted into the left and right holes 109a and 109b of the guide plate 109, and then the other end projection 104c is fitted into the hole 110a of the front plate 110 while pressing the cover member 104 toward the guide plate 109 side.

The rear plate 111 of the needle accommodating portion 101 is the guide plate 1
It is guided by 09 and is movable up and down. Inside the rear plate 111, a shifter member 112 for lifting the needle pressing plate 107 upward is attached.
In this case, the left and right protrusions 112 at the rear end of the shifter member 112
a and 112b are vertical grooves 111a and 1 on the left and right of the rear plate 111.
It is movably fitted in 11b (see FIG. 6). The tip of this shifter member 112 (semicircular cutout 112c)
Is fitted in the groove portion 106 a of the spring seat member 106.

When the rear plate 111 is moved upward along the guide plate 109, the needle pressing plate 1 which is in contact with the bottom plate 108
07 moves upward together with the rear plate 111 via the shifter member 112. As a result, at the same time that the rear portion of the needle housing portion 101 is opened, the needle pressing plate 107 causes the biasing spring 105 to move.
Is retracted and retracted to a predetermined height position in the needle storage unit 101. Here, the claw 111c of the rear plate 111 is attached to the guide plate 109.
When it is hooked on the upper end of the rear plate 111, the rear plate 111 does not drop downward, and the needle pressing plate 107 supported by the shifter member 112 also stops with the biasing spring 105 compressed (see FIGS. 5 and 6).

In this way, when the claw 111c of the rear plate 111 is hooked on the upper end of the guide plate 109, the needle accommodating portion 10
The rear part of 1 is open to a size into which a packaging needle belt 200 described later can be inserted. In addition, the needle pressing plate 10
7 retreats to a height position where the packaging needle belt 200 can be stored in the needle storage portion 101 to form a needle storage space.

An opening 108a for contacting the needle belt N with the needle feed belt 67a is formed in the bottom plate 108 portion of the needle storage unit 101, and the needle belt N is sent out to the front plate 110 of the needle storage unit 101. An opening 110b for forming is formed.

The staple cartridge 100A is filled with the packaging needle belt 200 shown in FIG.

The packaging needle belt 200 is obtained by packaging a plurality of laminated needle belts N with a box-shaped packaging member 201. As shown in FIG. 7 (a), an opening 202 for inserting the needle pressing plate 107 is formed on the upper surface 201a of the packaging member 201, and the lower surface 201b is shown in FIG. 7 (b).
As shown in FIG. 2, the opening 2 into which the needle feed belt 67a is inserted
No. 03 is formed, and the front surface 201c is formed with an opening portion 204 for sending out the needle belt N, as shown in FIG. 7 (a).

5 and 6 show the needle cartridge 100.
The state at the time of storing the packaging needle belt 200 in the needle storage part 101 of A is shown.

When the needle of the needle cartridge 100A becomes empty, the needle cartridge 100A is removed from the upper unit 67, and the rear plate 111 is moved upward until the claw 111c is caught by the upper end of the guide plate 109 as described above. .

In this way, the rear portion of the needle accommodating portion 101 is opened and the needle pressing plate 107 is retracted upward, and the packaging needle belt 200 is opened from the opened rear portion as shown in FIG.
Insert and store the needle in the needle storage unit 101 as shown in (a).

As shown in FIGS. 5 and 6, the needle housing portion 10
After the packaging needle belt 200 is stored in the guide plate 1,
When the claw 111c is removed from the upper end of 09, the rear plate 111 is shown in FIG.
As shown in, the needle storage unit 101 is lowered to a position where the rear portion of the needle storage unit 101 is closed. In addition, at this time, the shifter member 112 is attached to the rear plate 11.
Since the push-up by 1 is released and it becomes free to move in the vertical direction, the needle pressing plate 107 that has been retracted upward by the shifter member 112 descends due to the restoring force of the biasing spring 105,
The needle belt N is pressed through the opening 202 of the packaging member 201.

In this way, when the packaging needle belt 200 is stored in the needle storage portion 101, the packaging member 20 that has become empty
1 remains in the needle storage unit 101, the needle storage unit 101
Since the opened rear part is closed by the rear surface 201d of the packaging member 201, the packaging needle belt 200 cannot be inserted and stored unless the packaging member 201 is removed.

As described above, when the needle cartridge 100A accommodating the wrapping needle belt 200 is mounted at the predetermined position of the upper unit 67, the needle feeding belt 67a is placed at the lowest needle belt through the opening 203 of the wrapping member 201. Contact N with a predetermined pressure.

The packaging member 20 is secured by the needle feed belt 67a.
As the needle belt N wrapped in 1 is sequentially fed out, the needle pressing plate 107 follows the uppermost needle belt N and descends. At this time, the shifter member 1 that pushes up the needle pressing plate 107
12 also falls in the opening 202 of the packaging member 201.

When the needle belt N wrapped in the packaging member 201 disappears and the needles of the needle cartridge 100A become empty,
The sensor 93 detects that there is no needle. <Embodiment 2> FIGS. 8 to 10 show another configuration example of the needle cartridge.

The basic structure of the present needle cartridge 100B is the same as that of the needle cartridge 100A of the first embodiment.

In the present needle cartridge 100B, the bottom plate 120 of the needle accommodating portion 101 is movable in the needle feeding direction (arrow direction), so that the bottom plate 12 from the needle accommodating portion 101 can be moved.
When 0 is pulled out to a predetermined position, the needle pressing plate 121 of the needle biasing portion 102 is raised to a predetermined position.

The bottom plate 120 includes the left and right inclined cam plates 12
2, 123 are integrally provided. The bottom plate 120 is
The protrusions 122a and 123a provided on the outer surfaces of the inclined cam plates 122 and 123 are movably fitted into the horizontal grooves 124a and 125a of the left and right side plates 124 and 125, and are attached to the needle storage unit 101.

The needle pressing plate 121 has left and right guide plates 126, 1 for vertically guiding the needle pressing plate 121.
27 are provided. The left and right guide plates 126, 1
The protrusions 126a and 127a provided on the outer surface of the vertical plate 27 are vertical grooves 124b and 125b of the left and right side plates 124 and 125.
Is movably fitted in.

Rollers 128 and 129 are provided on the outer surfaces of the left and right guide plates 126 and 127, and the left and right rollers 128 and 129 are inclined cam plates 122 and 12 on the left and right.
The third cam surfaces 122b and 123b are in contact with each other.

When the needle in the needle storage portion 101 is empty as shown in FIG. 8, the needle pressing plate 121 is in a position where it is substantially in contact with the bottom plate 120.

Then, as shown in FIG. 11, when the bottom plate 120 is pulled out from this state, the rollers 128, 12
The needle pressing plate 121 contracts the biasing spring 105 and ascends when the cam 9 climbs the cam surfaces 122b and 123b. Then, when the bottom plate 120 is pulled out to a predetermined position, the rollers 128 and 129 reach the horizontal tops of the cam surfaces 122b and 123b, and the raising of the needle pressing plate 121 stops at the retracted position. As a result, the bottom of the needle accommodating portion 101 is opened to a size in which the packaging needle belt 200 can be inserted and accommodated, and a space in which the packaging needle belt 200 can be accommodated is obtained in the needle accommodating portion 101.

The bottom plate 120 has horizontal grooves 124a, 12
5a, the needle pressing plate 121 moves vertically to the vertical groove 1
Move vertically along 24b and 125b.

When the bottom plate 120 is pulled out, the left and right inclined cam plates 122 and 123 pass through the left and right vertical slits 130a and 130b of the rear plate 130.

In the present needle cartridge 100B, the bottom of the needle accommodating portion 101 is opened as described above, and the packaging needle belt 200 is inserted into the needle accommodating portion 101 from the open portion as shown in FIG. Insert and store.

In this case, the packaging member 201 with the needle emptied
Is left in the needle storage portion 101, the lower surface 201b of the packaging member 201 closes the open portion, so that the packaging member 201
The packing needle belt 200 cannot be filled without removing.

When the bottom plate 120 is pushed in after the packaging needle belt 200 is accommodated in the needle accommodating portion 101, the packaging needle belt 200 is placed on the bottom plate 120, and the rollers 128,
The needle pressing plate 121 presses the uppermost needle belt N via the opening 202 of the packaging member 201 by the cam surface 122b, 123b being lowered by 129. Then, as the number of the needle belts N wrapped in the packaging member 201 decreases, the needle pressing plate 121 enters the packaging member 201 at the portions excluding the left and right guide plates 126 and 127.

The holes 130a, 130b in the rear plate 130
Is a hole 109 in the guide plate 109 of the needle cartridge 100A.
a and 109b are the same holes, and the opening 12 of the bottom plate 120
0a is the opening 1 of the bottom plate 108 of the needle cartridge 100A.
The opening is the same as 08a. FIG. 12 shows a configuration example of a sheet post-processing device (bin moving type sorter) including the present sheet bundle binding device 66.

The sorter main body 7 includes a pair of left and right side plates 3, a base 5, a cover 6 and a bin unit 2.

The bin unit 2 includes a large number of bins B1 to Bn.
And a bin B composed of a set of the above, and is supported so as to be movable in the vertical direction along a pair of guide rails 9 provided on the side plates 3.

The sorter main body 7 is connected to the image forming apparatus M disposed on the upstream side (right side in FIG. 12), and carries in the sheet P discharged from the image forming apparatus M and the carry-in port 10. It has a roller pair 11.

A first sheet conveying path 12 and an upper discharging roller pair 13 are provided in the direction from the carry-in roller pair 11 to the bin unit 2, and the second sheet carrying path is branched from the carry-in roller pair 11 and faces downward. 15 and the lower discharge roller pair 16 facing the bin unit 2, respectively.

A deflector 17 is disposed at a branch portion of both the sheet conveying paths 12 and 15, and the deflector 17 is selectively displaced so that the sheet to be discharged from the upper discharge roller pair 13 to the bin B is moved to the first position. The sheet to be discharged to the bin B from the lower discharging roller pair 16 is guided to the second sheet conveying path 15.

A paper sensor 19 for detecting the sheet P is arranged near the sheet discharge portion of the second sheet conveying path 15. This paper sensor 19 is composed of a reed switch with a built-in photo interrupter in this example, but a transmissive optical sensor can also provide the same function.

Sheet P discharged from inside image forming apparatus M
Are detected by an image forming apparatus discharge sensor (not shown) provided in the apparatus M. In this example, the passage time of the sheet P and the interval (sheet interval) between the sheet P and the next sheet P can also be measured, and the sheet P can be detected by an arithmetic circuit incorporated in the main body of the image forming apparatus M. The above-mentioned signals are transmitted to the microcomputer in the bin unit 2 by issuing a discharge signal and a sheet interval signal.

The bin unit 2 has a pair of bin support plates 20 having a frame structure in the front and rear. A bin slider 21 is attached to the tip of the bin support plate 20, and the bin cover 2 is attached to the bin support plate 20 and the bin slider 21.
2 is fixed.

Sheets P stored in the respective bins B
Are pressed against the alignment reference wall (not shown) by the swing of the alignment rod (not shown) to be aligned.

Each of the bins B accommodated in the bin unit 2 is movably mounted on both ends of its free end in the comb-shaped grooves (not shown) of the bin slider 21.
Bins are fixed to the left and right portions of the base end portion of the bottle slider 21, and a trunnion 33 is rotatably attached to the outer end thereof.

The trunnions 33 are fitted in the guide rails 9 so that the trunnions 33 of each bin B are stacked, and the lowermost trunnion 33 is rotatably supported by the bin support plate 20 (not shown). , And the uppermost trunnion 33 abuts on the upper guide roller 36 rotatably supported by the bin support plate 20, so that the bin spacing of each bin B is kept equal to the outer diameter of the trunnion 33. Thus, it is supported by the bin unit 2.

The bin unit 2 can be moved up and down along the guide rail 9 with the upper guide roller 36 and the lower guide roller (not shown) fitted in the guide rail 9.

The metal fitting 3 fixed to the bin unit 2
A tension spring 39 is stretched between the side plate 3 and the side plate 3, and the elastic force of the tension spring 39 pulls up the bottle unit 2.

Further, cam shaft holders 40 are provided at positions facing the lower discharge roller pair 16 supported by the left and right side plates 3, respectively.
A lead cam shaft 42 is rotatably disposed between the base plate 5 and the base plate 5 via a bearing (not shown). A pair of left and right lead cams 43 having a spiral cam surface are fixedly installed above the lead cam shafts 42 arranged on the left and right sides, respectively.

The lead cam 43 includes a pulley 46a, a bevel gear 46b, and a bevel gear 46b by a shift motor (not shown) capable of rotating in the forward and reverse directions.
It is driven via 51, 53, the belt 47, the lead cam shaft 42, and the like.

In the present embodiment, the lead cam 43 can be expanded and expanded between the bins B at two positions of the expansion and expansion portions X and X '.
Although it is configured in a strip type, this is because the sheet bundle binding device 66 capable of advancing and retracting is provided in the sorter 1.

The lead cam 43 is driven by the shift motor.
When each of the trunnions 33 rotates in the forward and reverse directions, the trunnion 33 is pressed by the groove in the lead cam 43 and the guide rail 9
Guided by the ascent and descent.

[0087]

As described above, in the sheet bundle binding apparatus of the present invention, since the needle accommodating portion of the needle accommodating means can be opened, the needle accommodated in the needle accommodating portion is bound into the sheet bundle. Even if the needle is used for work and disappears, the needle can be stored in the needle storage portion by the operator's hand.

Therefore, even if the needles stored in the needle storage portion are used up, the needle storage means can be repeatedly used, there are no parts wasted by replenishing the needles, and the running cost is reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing the overall configuration of a sheet bundle binding device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional plan view showing the overall configuration of the sheet bundle binding device.

FIG. 3 is a vertical cross-sectional side view showing a detailed configuration of a needle cartridge provided in the sheet bundle binding device.

FIG. 4 is an exploded perspective view showing a detailed configuration of the needle cartridge.

FIG. 5 is a vertical cross-sectional side view illustrating a method of filling a plurality of needle belts stacked in a needle storage portion of the needle cartridge.

FIG. 6 is a front view illustrating a method of filling a plurality of needle belts stacked in a needle storage portion of the needle cartridge.

FIG. 7 is a perspective view showing a configuration of a packaging member that packages a plurality of stacked needle belts.

FIG. 8 is a vertical sectional side view showing the configuration (Example 2) of another needle cartridge.

FIG. 9 is a vertical sectional front view showing the configuration of another needle cartridge.

FIG. 10 is an exploded perspective view showing the configuration of another needle cartridge.

FIG. 11 is a vertical cross-sectional side view illustrating a method of filling a plurality of needle belts stacked in a needle storage portion of another needle cartridge.

FIG. 12 is a vertical cross-sectional side view showing a configuration example of a sheet post-processing device (bin moving type sorter) including the sheet bundle binding device of the present invention.

FIG. 13 is a vertical cross-sectional side view showing the overall configuration of a conventional sheet bundle binding device.

FIG. 14 is a perspective view showing a configuration of a needle cartridge provided in the sheet bundle binding device.

[Explanation of symbols]

67 Upper unit (sheet bundle binding device main body) 100A, 100B Needle cartridge (needle accommodating means) 101 Needle accommodating portion 102 Needle energizing portion 105 Energizing spring (coil spring) 111 Rear plate (needle accommodating portion opening means) 120 Bottom plate ( Needle storage section opening means) 200 Wrapping needle belt (needle belt wrapped by a wrapping member) 201 Wrapping member 202 to 204 Opening of the wrapping member N Needle belt

Claims (8)

[Claims] 1. A needle accommodating portion for accommodating a plurality of needle belts, each accommodating a plurality of needles connected in a row in a row, and an auxiliary conveyance by urging the needle belts accommodated in the needle accommodating portion. A sheet biasing section for applying force, and a needle storing means detachably attached to the sheet bundle binding apparatus main body; 2. A sheet bundle binding device, characterized in that a needle accommodating portion opening means for opening a part of the needle accommodating portion while releasing a force is provided in the needle accommodating means. 2. The sheet bundle binding device according to claim 1, wherein the needle accommodating portion opening means is an opening / closing member forming a rear wall of the needle accommodating portion. 3. The sheet bundle binding device according to claim 1, wherein the needle storage section opening means is an opening / closing member that forms a bottom wall of the needle storage section. 4. The needle biasing portion is provided with a coil spring for biasing the needle belt, and the coil spring expands and contracts in conjunction with the opening / closing operation of the opening / closing member. The sheet bundle binding device according to 2 or 3. 5. The sheet bundle binding apparatus according to claim 1, wherein the needle accommodating portion opened by the accommodating portion accommodating portion accommodates the needle belt wrapped by a box-shaped packaging member. . 6. The packaging member includes an opening for the needle biasing portion to bias the needle belt, an opening for the needle feeding means to contact the needle belt, and the needle belt. The sheet bundle binding device according to claim 5, further comprising an opening for sending out. 7. The needle storage part, wherein the needle belt wrapped in the packaging member is stored in the needle storage part, the open side of the needle storage part is closed by a part of the packaging member. Sheet bundle binding device. 8. A needle accommodating means opening means for opening a part of the needle accommodating portion while releasing the needle energizing force of the needle energizing portion for energizing the needle belt accommodated in the needle accommodating portion. A sheet post-processing apparatus comprising the sheet bundle binding apparatus provided in.