JP6908815B2 - Staple remover - Google Patents

Description

The present invention relates to a staple removing device capable of automatically removing staples binding a bundle of sheets.

Conventionally, steps are generally used as a means for bundling a plurality of sheets so as not to disperse them, and there are, for example, steps made of metal. When it becomes necessary to separate the stepped sheet bundle into individual sheets again for various reasons, the work of removing the steps from the sheet bundle is required. This work is a difficult work that takes a lot of time and effort.

In order to facilitate this staple removal work, it is conventionally composed of a pair of levers and a claw provided at the tip of the lever, and the user is provided at the tip of the lever by grasping the pair of levers. Many devices for removing staples from sheet bundles by deforming the staples by the action of a claw, and devices for improving the staples have been proposed (Patent Document 1).

In addition, a tool for removing staples by a punching method has been proposed in which staples bound to an object such as paper are cut out and removed including a part of the paper surrounding the staples and the staple binding portion with a punch blade. (Patent Document 2). Further, a sheet processing device having a staple removing device for automatically removing the staples binding the sheet bundle has been proposed (Patent Document 3).

JP-A-1-306185 Japanese Patent No. 5344332 Japanese Unexamined Patent Publication No. 6-186807

By the way, the conventional staple removal requires some manpower to remove the staples, or even if it is automated, for example, the staples binding the sheet bundle are pulled out and removed. There is a risk that the removed staples will fall and scatter.

The present invention has been made in view of this point, and an object of the present invention is to provide a staple removing device that automatically removes staples that bind a bundle of sheets and can recover the removed staples without scattering them. ..

In order to solve the above problems and achieve the object, the present invention is configured as follows.

The invention according to claim 1 comprises a staple removal / recovery unit for removing and recovering staples for binding a sheet bundle from the sheet bundle.
A drive unit for driving the staple removal / recovery unit is provided.
The staple removal / recovery unit is
An accommodating section for accommodating staples removed from the sheet bundle,
It has a removal transport section that removes staples from the sheet bundle and transports the staples to the accommodating section.
The accommodating part
Detachable to dispose of stored staples,
The removal transport unit
A claw that has a sharp tip that can be inserted between the staple and the sheet bundle, and a rear end that extends above the accommodation with a width that guides the staple to the accommodation, and a claw that removes the staple from the staple.
It has a transporting means for transporting the removed staples to the accommodating portion via the claws.
The accommodating portion and the removing transport portion are assembled to the base body.
The drive unit
A first drive system that rotates the accommodating portion and the removing and transporting portion via the base body to bring them into an inclined pull-out state and a horizontal recovery state.
It has a second drive system that moves the removal transport unit back and forth to bring it into a pulled-out state and a recovered state.
The drive source of the first drive system and the second drive system is common,
By driving the first drive system, the accommodating portion and the removal transport portion are pulled out in an inclined state, the removal transport portion is brought into a forward pulling state, and staples are removed from the sheet bundle.
By driving the second drive system, the accommodating portion and the removing transport portion are placed in a horizontal collecting state, the removing transporting unit is placed in a reverse collecting state, and the removed staples are collected in the accommodating portion. It is a staple removal device.

According to the invention of claim 4, the staple removal / recovery unit is
The staple removing device according to any one of claims 1 to 3, wherein the staples can be moved and rotated according to the position of the staples for binding the sheet bundle.

With the above configuration, the present invention has the following effects.

In the invention according to claim 1 , the accommodating portion is removable for discarding the stored staples, and the removal transport unit has a sharp tip so that it can be inserted between the staples and the sheet bundle to guide the staples to the accommodating portion. The rear end portion extends above the accommodating portion with such a width, and has a claw for removing staples from the sheet bundle and a transport means for transporting the removed staples to the accommodating portion via the claws. The removal transport unit is assembled to the base body, and the drive unit rotates the accommodating unit and the removal transport unit via the base body to bring the stapled pull-out state and the horizontal recovery state into a first drive system and removal. It has a second drive system that moves the transport unit back and forth to bring it into a pulled-out state and a recovered state, and has a common drive source for the first drive system and the second drive system, and the first drive system. With the drive of the storage unit and the removal transport unit tilted, the removal transport unit is brought into the forward pull-out state, the staples are removed from the sheet bundle, and the accommodation unit and the removal transport unit are driven by the second drive system. In the horizontal collection state, the removal transport unit is in the reverse collection state, and the removed staples are collected in the storage unit to automatically remove the staples that bind the sheet bundle and collect the removed staples without scattering. It is possible.

It is a schematic block diagram of the staple removal apparatus. It is a top view which shows the binding form of a sheet bundle. It is a perspective view of the removal recovery unit. It is a perspective view which shows the structure of the staple removal recovery part. It is sectional drawing which shows the structure of the removal recovery of the staple removal recovery part. It is a figure which shows the removal of a staple. It is a figure which shows the recovery of a staple. It is a perspective view of the removal recovery unit. It is a perspective view which shows the drive part. It is a figure which shows the drive.

Hereinafter, embodiments of the staple removing device of the present invention will be described. Embodiments of the present invention represent the most preferred form of the invention, and the invention is not limited thereto.

(Structure of staple removal device)
The staple removing device of this embodiment is configured as shown in FIGS. 1 and 2, FIG. 1 is a schematic configuration diagram of the staple removing device, and FIG. 2 is a plan view showing a binding form of a sheet bundle. The staple removing device 1 of this embodiment is a device that removes and recovers the staples that bind the sheet bundle from the sheet bundle, and includes a removal and recovery unit 10 on which the sheet bundle 100 bound by the staple A can be placed. The removal / recovery unit 10 has a staple removal / recovery unit 30 that removes and recovers the staple A that binds the sheet bundle from the sheet bundle, and a drive unit 40 that drives the staple removal / recovery unit 30. Further, the staple removing device 1 includes a feeding means 14 for separating and feeding sheets one by one from the sheet bundle 100 from which the staple A has been removed, a staple position detecting means 15 for detecting the position of the staple, and a staple A. The operation means 16 for inputting the command information for removing the staples, and the control means 17 for controlling the drive unit 40 and the feeding means 14 based on the position detection information of the staples or the command information for removing the staples are provided.

The removal / recovery unit 10 is configured so that the sheet bundle 100 bound by the staple A can be placed. When it becomes necessary to remove the staple A and separate the sheet bundle 100 bound by the staple A into individual sheets again for various reasons, the sheet bundle 100 bound by the staple A 100 Is placed on the removal / recovery unit 10. In this embodiment, the sheet bundle 100 bound by the staple A is separated into sheets one by one, sent to the scanner device 18, and the information stored in the sheets is read one by one. Although one booklet of the sheet bundle 100 bound by the step A is placed on the removal / recovery unit 10, a plurality of booklets may be placed.

(Form of stapled sheet bundle)
As for the form of the stapled sheet bundle used in this embodiment, in FIG. 2A, staple A is provided along the front side in the left front corner of the sheet bundle 100, and in FIG. 2B, the stapled sheet bundle is provided. Staples A are provided at an angle of 90 ° in the front corner on the left side of 100, and in FIG. 2C, staples A are provided at two locations along the left side of the sheet bundle 100, and in FIG. 2D, the sheet bundle is provided. Staples A are provided along the front side in the left rear corner of the 100, and in FIG. 2E, staples A are provided in the left rear corner of the sheet bundle 100 at an angle of 90 °. The staple removal / recovery unit 11 can be moved and rotated according to the position of the staple A for binding the sheet bundle 100 shown in the forms of FIGS. 2A to 2E, and the staple A can be moved and rotated to move the staple A to the sheet bundle 100. Remove from and collect.

(Overall configuration of removal and recovery unit)
The staple removing device 1 includes a removal / recovery unit 10, and the removal / recovery unit 10 will be described with reference to FIG. FIG. 3 is a perspective view of the removal / recovery unit.

The removal / recovery unit 10 of this embodiment has a hollow box-shaped frame body 20 corresponding to the size of the sheet bundle 100, and the frame body 20 is provided with an elevating table 21 capable of holding and holding the sheet bundle 100. Has been done. The removal / recovery unit 10 includes a staple removal / recovery unit 30 that removes and collects the staples that bind the sheet bundle from the sheet bundle, and a moving unit 40 that moves the staple removal / recovery unit 30.

The staple removal / recovery unit 30 can be moved and rotated according to the position of the staples for binding the sheet bundle, and is arranged in the hollow portion of the frame body 20. The moving unit 40 has a drive motor 41, a reduction gear mechanism 42, a moving belt 43, a wiring cover unit 44, and a connecting member 45, and the staple removal / recovery unit 30 is fixed to the moving belt 43 by the connecting member 45. The wiring cover portion 44 is formed of a flexible member and covers the wiring for driving and controlling connected to the staple removal / recovery portion 30. The reduction gear mechanism 42 is driven by the drive motor 41, and the staple removal / recovery unit 30 fixed to the moving belt 43 reciprocates.

(Structure of removal and recovery)
The configuration of the removal and recovery of the staple removal and recovery unit 30 of this embodiment will be described with reference to FIGS. 4 to 7. FIG. 4 is a perspective view showing the configuration of the staple removal / recovery unit, FIG. 5 is a cross-sectional view showing the configuration of the staple removal / recovery unit, FIG. 6 is a diagram showing staple removal, and FIG. 7 is a diagram showing staple recovery. Is.

The staple removal / recovery unit 30 has a storage unit 50 for accommodating the staples removed from the sheet bundle, and a removal / transport unit 60 for removing the staples from the sheet bundle and transporting the staples to the storage unit 50. The accommodating portion 50 and the removing transport portion 60 are assembled to the base body 70, and the base body 70 is rotatable around the support shaft 71 as a fulcrum. The support shaft 71 is supported by the removal / recovery unit frame body 72, and the removal / recovery unit frame body 72 is provided on the rotation frame body 73 so as to be able to move forward and backward. The rotating frame body 73 can be rotated around the moving frame body 74 with the rotating shaft 75 as a fulcrum. A connecting member 45 is fixed to the moving frame body 74.

The accommodating portion 50 is composed of a collection box 51 having an open upper portion, is assembled to a base body 70 in order to dispose of the accommodating staples, and is held detachably by a spring 52.

The removal transport unit 60 has a claw 61 for removing staples from the sheet bundle, and a transport means 62 for transporting the removed staples to the accommodating unit 50. The claw 61 has a sharp tip 61a so that it can be inserted between a staple, for example, a stapler for binding a sheet bundle and a sheet bundle, and the rear end 61b of the collection box 51 has a width such that the stapler is guided to the collection box 51 in between. It extends upwards.

The transport means 62 includes a holding plate 62a, a rack 62b, a pinion 62c, and a pull-in member 62d. The holding plate 62a is arranged along the claw 61, and the stapler pulled out by inserting the claw 61 is guided and conveyed between the claw 61 and the holding plate 62a, and is removed from the rear end portion 61b of the claw 61 and collected. It falls into the box 51 and is collected. The rack 62b is slidably provided on the holding plate 62a, and a pull-in member 62d is fixed to the tip of the rack 62b by a screw 62e. The retracting member 62d has a hooking claw 62d1 extending downward. A pinion 62c meshes with the rack 62b, and the rack 62b moves forward or backward by driving the pinion 62c.

The staple removal / recovery unit 30 can be moved and rotated according to the position of the staples that bind the sheet bundles, and as shown in FIGS. 5 and 6, at the positions of the staples that bind the sheet bundles, the staple removal / recovery unit 30 The accommodating portion 50 and the removing transport portion 60 are moved in an inclined state. The staple removal / recovery unit 30 is in a state in which the rack 62b is advanced, and the claw 61 of the removal / transfer unit 60 is inserted between the stapler whose tip portion 61a constitutes the staple A and the sheet bundle due to the movement of the staple removal / recovery unit 30. As the stapler moves, it is guided between the claw 61 and the holding plate 62a and pulled out.

Next, as shown in FIG. 7, when the staple removal / recovery unit 30 rotates the accommodating unit 50 and the removal / transportation unit 60 so as to be substantially horizontal, the tip portion 61a of the claw 61 is lifted and the stapler is lifted. It is pulled out from the stapler bundle. When the pinion 62c is driven with the staples pulled out from the seat bundle and the rack 62b is retracted, the retracting member 62d is retracted together. Due to the retracting of the retracting member 62d, the stapler is guided and conveyed between the claw 61 and the holding plate 62a, disengages from the rear end portion 61b of the claw 61, falls into the collection box 51, and is collected.

(Structure of drive unit)
The drive unit 30A of the staple removal / recovery unit 30 will be described with reference to FIGS. 8 to 10. FIG. 8 is a perspective view of the removal / recovery unit, FIG. 9 is a perspective view showing a drive unit, and FIG. 10 is a view showing drive.

In this embodiment, the drive unit 30A of the staple removal / recovery unit 30 has a first drive system C1 that operates the accommodating unit 50 and the removal transport unit 60, and a second drive system C2 that moves the rack 62b forward or backward. The drive motor C3 is a common drive source for the first drive system C1 and the second drive system C2.

The first drive system C1 includes a gear 81 fixed to the output shaft 80 of the drive motor C3, an intermediate gear 82 formed with a large diameter gear 82a and a small diameter gear 82b, and a drive shaft 83 provided with the gear 83a. Then, the belt 84 is hung on the gear 81 and the large diameter gear 82a, the belt 85 is hung on the small diameter gear 82b and the gear 83a, and the drive shaft 83 is rotated by the drive of the drive motor C3.

The gear 83b and the gear 86 formed on the drive shaft 83 mesh with each other, the gear 87 coaxial with the gear 86 meshes with the segment gear 88, and the segment gear 88 rotates about the segment gear rotation shaft 89 as a fulcrum, and the cam of the segment gear 88 The driven shaft 90 that engages with the groove 88a is operated. The driven shaft 90 is engaged with the cam groove 88a via the collar 90a of the elastic body.

In the first drive system C1, the segment gear 88 is rotated by the drive of the drive motor C3, the driven shaft 90 is operated in conjunction with each other, the base body 70 is rotated around the support shaft 71 as a fulcrum, and the accommodating portion 50 and The removal transport unit 60 changes from the tilted pull-out state to the horizontal recovery state, and changes from the horizontal recovery state to the tilted pull-out state.

In the staple removing device 1, the seat bundle 100 is conveyed on the elevating table 21 provided in the removal / recovery unit 10, and the elevating table 21 rises with the sheet bundle 100 mounted and is seated by the frame body 20. Hold the bundle 100 so that it can be held. When the lifting platform 21 rises, the seat bundle 100 comes into contact with the tip portion 61a of the claw 61, but the driven shaft 90 is engaged with the cam groove 88a via the collar 90a of the elastic body, which is excessive. Even if a large amount of pressure is applied to the tip portion 61a of the claw 61, the collar 90a of the elastic body absorbs the pressure and the claw 61 escapes, so that it is possible to prevent the sheet of the sheet bundle 100 from being damaged by the contact pressure.

The second drive system C2 includes a gear 83c provided on the drive shaft 83 of the first drive system C1, a gear 91 rotatably provided on the support shaft 71, a pinion shaft 62c1 provided with a pinion 62c, and a pinion. It has a gear 92 fixed to the shaft 62c1, the belt 93 is hung on the gear 83c and the gear 91, the belt 94 is hung on the gear 91 and the gear 92, and the pinion 62c is driven by the drive motor C3 via the pinion shaft 62c1. To rotate.

In the second drive system C2, the drive shaft 83 of the first drive system C1 is rotated by the drive of the drive motor C3, and the pinion 62c is rotated via the pinion shaft 62c1 in conjunction with the rotation of the drive shaft 83, and the rack. 62b moves forward or backward.

The present invention is applicable to a staple removing device capable of automatically removing staples binding a bundle of sheets, automatically removing the staples binding the bundle of sheets, and collecting the removed staples without scattering. It is possible.

1 Staple removal device 10 Removal / recovery unit 30 Staple removal / recovery unit 40 Drive unit 14 Feeding means 15 Staple position detection means 16 Operating means 17 Control means 20 Frame body 21 Lifting platform 41 Drive motor 42 Reduction gear mechanism 43 Moving belt 44 Wiring cover Part 45 Connecting member 50 Accommodating part 51 Recovery box 60 Removal transport part 61 Claw 62 Transport means 62a Holding plate 62b Rack 62c Pinion 62d Retract member 70 Base body 71 Support shaft 72 Removal recovery part Frame 73 Rotating frame 74 Moving frame 75 Rotating shaft 80 Output shaft 81 Gear 82 Intermediate gear 83 Drive shaft 84,85 Belt 86,87 Gear 88 Segment gear 88a Cam groove 89 Segment gear Rotating shaft 90 Driven shaft 90a Elastic body collar 91,92 Gear 93,94 Belt 100 Seat bundle A Staple C1 First drive system C1 Second drive system C3 Drive motor

Claims (1)

A staple removal / recovery unit that removes and collects the staples that bind the sheet bundle from the sheet bundle,
A drive unit for driving the staple removal / recovery unit is provided.
The staple removal / recovery unit is
An accommodating section for accommodating staples removed from the sheet bundle,
It has a removal transport section that removes staples from the sheet bundle and transports the staples to the accommodating section.
The accommodating part
Detachable to dispose of stored staples,
The removal transport unit
A claw that has a sharp tip that can be inserted between the staple and the sheet bundle, and a rear end that extends above the accommodation with a width that guides the staple to the accommodation, and a claw that removes the staple from the staple.
It has a transporting means for transporting the removed staples to the accommodating portion via the claws.
The accommodating portion and the removing transport portion are assembled to the base body.
The drive unit
A first drive system that rotates the accommodating portion and the removing and transporting portion via the base body to bring them into an inclined pull-out state and a horizontal recovery state.
It has a second drive system that moves the removal transport unit back and forth to bring it into a pulled-out state and a recovered state.
The drive source of the first drive system and the second drive system is common,
By driving the first drive system, the accommodating portion and the removal transport portion are pulled out in an inclined state, the removal transport portion is brought into a forward pulling state, and staples are removed from the sheet bundle.
By driving the second drive system, the accommodating portion and the removing transport portion are placed in a horizontal collecting state, the removing transporting unit is placed in a reverse collecting state, and the removed staples are collected in the accommodating portion. Staple removal device.

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