JP2021058969A - Staple remover - Google Patents

Abstract

To remove a staple from a paper bundle by moving a removal part.SOLUTION: A staple remover 1 comprises: a placement part 102 on which a paper bundle bound by a staple constituted of a crown part and a leg part can be placed so that the crown part is positioned lower; a removing part 122 positioned below the paper bundle with the paper bundle placed on the placement part 102, which is configured to be insertable into a space between the crown part and the paper bundle and is inserted into the space between the crown part and the paper bundle to remove the staple from the paper bundle; and a storage part 200, positioned below the removing part 122, which stores the removed staple. The removal part 120 has a staple dropping part 122c for dropping the staple removed from the paper bundle onto the storage part 200.SELECTED DRAWING: Figure 2A

Description

The present disclosure relates to a staple removing device.

Conventionally, a staple removing device for removing staples from a bundle of paper has been disclosed (for example, Patent Document 1). This type of staple removing device removes staples from a bundle of paper by inserting a wedge-shaped plate between the bundle of paper and the staple.

For example, the binding member removing device disclosed in Patent Document 1 is inserted between the first insertion member inserted between the front surface of the paper bundle and the crown portion of the staple, and the back surface of the paper bundle and the leg portion of the staple. A second insertion member is provided, and the staple leg is raised by inserting the second insertion member between the paper bundle and the leg, and then the first insertion member is inserted between the paper bundle and the crown. Pull out the staples from the stack of paper by inserting. The pulled out staples fall freely and are collected in the collection box.

Patent No. 40778728

However, the staple leg pulled out from the paper bundle is held by the first insertion member due to the restoring force of the leg (the force that the leg tries to close inward (springback)), and the first insertion is performed. In some cases, the staples did not fall because they did not separate from the member. In this case, it was necessary for the user to manually remove the staple from the first insertion member or to separately provide a mechanism for removing the staple from the first insertion member.

Therefore, it is an object of the present invention to provide a staple removing device in which a removing portion is inserted between a paper bundle and a staple to remove staples from the paper bundle so that the removed staples can easily fall from the removing portion. ..

The staple removing device according to the present disclosure includes a mounting portion on which a bundle of paper bound by staples including a crown portion and a leg portion can be placed so that the crown portion is on the lower side, and the paper bundle is in front of the stack. A removing portion located below the bundle of paper when placed on the writing portion, which is configured to be insertable between the crown portion and the bundle of paper, and is inserted between the crown portion and the bundle of paper. A removing portion for removing the staples from the bundle of paper and an accommodating portion located below the removing portion for accommodating the removed staples are provided, and the removing portion is removed from the bundle of paper. It has a staple drop portion for dropping the staple into the accommodating portion.

According to the staple removing device according to the present disclosure, since the removing portion is provided with a staple dropping portion for dropping the removed staples into the accommodating portion, the user can manually remove the staples attached to the removing portion or staples. It is not necessary to separately provide a mechanism for dropping the staples from the removing portion, and the staples can be dropped from the removing portion.

It is a front perspective view of the staple removal device which concerns on 1st Embodiment. It is a rear perspective view of the staple removal device which concerns on 1st Embodiment. It is a perspective view which looked at the inside of the staple removal apparatus which concerns on 1st Embodiment from the right side. It is a perspective view which looked at the inside of the staple removal apparatus which concerns on 1st Embodiment from the left side. It is an exploded perspective view of the removal part and its peripheral parts which concerns on 1st Embodiment. It is a top view of the removal part which concerns on 1st Embodiment. It is a side view of the removal part which concerns on 1st Embodiment. It is a bottom view of the removal part which concerns on 1st Embodiment. FIG. 5 is a cross-sectional view taken along the line AA of the removal portion shown in FIG. 5A. It is a side view which shows the operation of the staple removal device. It is a side view which shows the operation of the staple removal device. It is a side view which shows the operation of the staple removal device. It is a side view which shows the operation of the staple removal device. It is a side view which shows the operation of the staple removal device. It is a side view which shows the operation of the staple removal device. It is a side view which shows the operation of the staple removal device. It is a perspective view which shows the operation of a wedge plate and a staple. It is a perspective view which shows the operation of the removal part. It is a perspective view which shows the operation of the removal part. It is a perspective view which shows the operation of the removal part. It is a perspective view which shows the operation of the removal part. It is a figure which shows the state of a wedge plate and a staple when removing a staple from a paper bundle. It is a figure which shows the state of a wedge plate and a staple when removing a staple from a paper bundle. It is a figure which shows the state of a wedge plate and a staple when removing a staple from a paper bundle. It is a figure which shows the state of a wedge plate and a staple when removing a staple from a paper bundle. It is a figure which shows the state of a wedge plate and a staple when removing a staple from a paper bundle. It is a top view of the removal part which concerns on 2nd Embodiment. It is a side view of the removal part which concerns on 2nd Embodiment. It is a bottom view of the removal part which concerns on 2nd Embodiment. FIG. 8 is a cross-sectional view taken along the line BB of the wedge plate shown in FIG. 8A. It is a figure which shows the state of the wedge plate and the staple when the staple is removed from the paper bundle which concerns on 2nd Embodiment. It is a top view of the removal part which concerns on 3rd Embodiment. It is a side view of the removal part which concerns on 3rd Embodiment. It is a bottom view of the removal part which concerns on 3rd Embodiment. FIG. 5 is a sectional view taken along line CC of the removal portion shown in FIG. 10A. It is a top view of the removal part which concerns on 4th Embodiment. It is a side view of the removal part which concerns on 4th Embodiment. It is a bottom view of the removal part which concerns on 4th Embodiment. It is a DD line sectional view of the removal part shown in FIG. 13A which concerns on 4th Embodiment. It is a top view of the removal part which concerns on 5th Embodiment. It is a side view of the removal part which concerns on 5th Embodiment. It is a bottom view of the removal part which concerns on 5th Embodiment.

<First Embodiment>
[Structure example of staple removal device 1]
FIG. 1A is a front perspective view of the staple removing device 1, and FIG. 1B is a rear perspective view of the staple removing device 1. 2A is a perspective view of the inside of the staple removing device 1 as viewed from the right side, and FIG. 2B is a perspective view of the inside of the staple removing device 1 as viewed from the left side. FIG. 3 is an exploded perspective view of the removing portion 122 and its peripheral parts. 4A is a plan view of the removing portion 122, FIG. 4B is a side view of the removing portion 122, FIG. 4C is a bottom view of the removing portion, and FIG. 4D is a sectional view taken along line AA of the removing portion 122 shown in FIG. 5A.

The staple removing device 1 is a device for automatically removing (removing) staples from a bundle of paper bound by staples, and as shown in FIGS. 1 and 2, a substantially rectangular housing 100 and a crown. A mounting portion 102 on which a stack of paper bound by staples consisting of a portion and a leg can be placed so that the crown portion is on the lower side, and a stack of paper in a state where the bundle of paper is mounted on the mounting portion 102. It is located below (the inner side of the housing 100 with respect to the mounting portion 102) and is configured to be insertable between the crown portion and the paper bundle. By being inserted between the crown portion and the paper bundle, the paper bundle can be inserted. It includes a removing unit 122 for removing staples and an accommodating unit 200 located below the removing unit 122 for accommodating the removed staples.

A cover portion 104 that covers a part of the mounting portion 102 is provided above the mounting portion 102 (the side on which the paper bundle is mounted with respect to the mounting portion 102). A predetermined gap (paper bundle insertion port) 108 is formed between the cover portion 104 and the mounting portion 102, and the paper bundle is inserted (set) into this gap. An activation switch 106 for operating the staple removing device 1 is provided on the upper surface of the cover portion 104. In the present embodiment, the side where the accommodating portion 200 is provided is the rear side of the staple removal device 1, and the opposite side is the front side of the staple removal device 1.

The housing 100 is a substantially rectangular parallelepiped box with an opening at the top, and a removing portion 120, a housing portion 200, and the like are provided inside.

The mounting portion 102 is provided so as to cover the opening above the housing 100, and has a mounting surface 102a for mounting a bundle of paper. An opening 102b is formed on the mounting surface 102a so that a part of the removing portion 120 can be projected.

The accommodating portion 200 is a box body having an opening at the upper side, and is configured to be removable with respect to the opening 100a formed on the rear end surface of the housing 100.

The removing portion 122 includes a wedge plate (first inclined portion) 122a that is inserted between the paper bundle P and the crown portion Sa and removes the staple S from the paper bundle P, and a mounting portion 122b that is attached to the plate holder 124. It is located between the wedge plate 122a and the plate holder 124, and includes a staple dropping portion 122c for dropping the staple S removed from the paper bundle P by the wedge plate 122a into the accommodating portion 200.

As shown in FIGS. 4A and 4B, the wedge plate 122a includes a tip portion 122s and a base end portion 122k, and the thickness of the wedge plate 122a is continuously increased from the tip portion 122s toward the base end portion 122k in the first direction H. It is formed. In the present embodiment, the thickness T1 of the base end portion of the wedge plate 122a is formed so as to be the thickest in the wedge plate 122a. The thickness T1 is preferably equal to or greater than the length of the leg portion Sb of the staple S.

Further, when the wedge plate 122a is viewed in a plane (from above), the width of the wedge plate 122a is formed in a tapered shape from the base end portion 122k toward the tip end portion 122s. That is, the width of the wedge plate 122a is formed so as to gradually narrow from the base end portion 122k toward the tip end portion 122s. In the present embodiment, the width D1 of the base end portion of the wedge plate 122a is the widest in the wedge plate 122a, and has a size equal to or close to the width of the crown portion Sa.

By making the shape of the wedge plate 122a in the thickness direction and the width direction into a wedge shape as described above, when the wedge plate 122a is inserted between the paper bundle P and the staple S and advances, the staple S is released from the paper bundle P. It is designed to be removed.

The staple drop portion 122c is located on the downstream side of the wedge plate 122a in the first direction H. Specifically, one end of the staple drop portion 122c (the tip end portion of the staple drop portion 122c) is continuous with the base end portion of the wedge plate 122a, and the other end portion (base end portion of the staple drop portion 122c). Is provided between the wedge plate 122a and the mounting portion 122b so as to be continuous with the tip portion of the mounting portion 122b. The staple drop portion 122c has a narrow portion 122c1 having a width D1 of the base end portion of the wedge plate 122a, that is, a width D2 narrower than the maximum width D1 of the wedge plate 122a. In the present embodiment, as shown in FIG. 4C, the width of the narrow portion 122c1 is formed to be the same or substantially the same width D2 from the uppermost portion to the lowermost portion in the thickness direction. Therefore, when the entire removing portion 122 is viewed in a plane, the portion corresponding to the staple dropping portion 122c constitutes the recess of the removing portion 122. By making the width of the staple drop portion 122c narrower than the maximum width D1 of the wedge plate 122a in this way, the staple S that is hugging and sticking to the wedge plate 122a is the staple drop portion in the process of moving the wedge plate 122a. When it is located at 122c, it will fall away. In order to drop the staple S more reliably at the staple dropping portion 122c, the width D2 of the narrow portion 122c1 is removed from the paper bundle P by the wedge plate 122a, and the distance D3 between the pair of leg portions Sb and Sb of the staple S. It is preferably narrower than (see FIG. 7E).

The staple drop portion 122c may have an inclination 122c2 that is continuous with the lower surface of the base end portion of the wedge plate 122a and is formed so as to increase in thickness in the first direction H. By providing the inclined 122c2 on the staple dropping portion 122c, the staple S removed from the paper bundle P can be easily dropped by the accommodating portion 200.

In the present embodiment, as shown in FIG. 4B, when the surface parallel to the upper surface of the wedge plate 122a is a virtual surface (horizontal plane) VP, the inclination 122c2 of the staple dropping portion 122c with respect to the virtual surface VP is the virtual surface VP. It is larger than the inclination 122a1 of the wedge plate 122a with respect to. In other words, the angle θ2 formed by the virtual surface VP and the inclination 122c2 is configured to be larger than the angle θ1 formed by the virtual surface VP and the inclination 122a1 of the wedge plate 122a. The reason for this is as follows. When the wedge plate 122a is inserted between the crown portion Sa and the paper bundle P and advances, the leg portion Sb of the staple S is raised by the inclination 122a1 of the wedge plate 122a, and then the staple S gradually moves from the paper bundle P. Be pulled out. When the staple S approaches the vicinity of the base end portion of the wedge plate 122a, the leg portion Sb of the staple S S is completely pulled out from the paper bundle P, or is in a state immediately before being pulled out. A large load is applied to the wedge plate 122a in this series of operations. On the other hand, when the staple S is located on the staple drop portion 122c, the leg portion Sb of the staple S has already been pulled out from the paper bundle P or is in a state immediately before being pulled out, so that the load received by the staple drop portion 122c is , It becomes smaller than the load received by the staple plate 122a. Therefore, by reducing the inclination 122a1 of the wedge plate 122a to which a large load is applied so that the load is gradually applied to the wedge plate 122a and increasing the inclination 122c2 of the staple dropping portion 122c to which a large load is not applied, the staples are increased. The S is surely guided downward, and the length of the staple drop portion 122c in the front-rear direction is shortened.

As shown in FIG. 3, the plate holder 124 is formed of a flat plate having a substantially U-shaped cross section, a mounting portion 122b is mounted on the upper surface thereof, and the plate holder 124 is arranged so as to be overlapped above the crown holder 126.

The crown holder 126 is arranged below the wedge plate 122a with the plate holder 124 interposed therebetween, and supports the crown portion Sa of the staple S removed from the paper bundle P. The crown holder 126 includes a groove 126a for preventing contact with the pressing portion 140 when the removing portion 122 advances, and an opening 126b for dropping the staple S removed from the paper bundle P into the accommodating portion 200. including. The opening 126b of the crown holder 126 and the staple dropping portion 122c of the removing portion 122 attached to the plate holder 124 are arranged so as to be at the same position in a plan view. The groove portion 126a is cut out from the tip end portion of the crown holder 126 to substantially the center portion, and has a width slightly wider than the width of the pressing portion 140. The opening 126b is formed at a substantially central portion in the longitudinal direction of the crown holder 126 and continuously on the proximal end side of the groove portion 126a, and has a width wider than the length of the crown portion Sa of the staple S, for example.

A spring 125 is arranged between the lower surface on the other end side of the plate holder 124 and the upper surface on the other end side of the crown holder 126, and the elastic force of the spring 125 causes one end (tip) side of the removing portion 122 and the crown holder 126. One end (tip) side of the is urged in the approaching direction.

The holder 128 is formed of a flat plate having a substantially U-shaped cross section, and is arranged so as to be overlapped on the upper surface of the plate holder 124. The holder 128 has an opening 128a that exposes the removing portion 122, and a holding portion when at least the removing portion 122 is stopped at a standby position (a position where the removing portion 122 is stopped before starting the removing operation) L1. Includes a support 128b that regulates 140 so that it is located below the tip 122s of the wedge plate 122a.

As shown in FIGS. 2B and 3, a plate-shaped rack 130 having substantially the same length as the longitudinal direction of the plate holder 124 is arranged on the left side of the plate holder 124. The rack 130 receives the driving force of the first motor 152. A plurality of teeth that mesh with the pinion 158, which will be described later, are formed on the lower surface of the rack 130.

On the right side of the plate holder 124, as shown in FIGS. 2A and 3, a plate-shaped rack 131 having substantially the same length as the longitudinal direction of the plate holder 124 is arranged. The rack 131 receives the driving force of the first motor 152. A plurality of teeth that mesh with the pinion 159, which will be described later, are formed on the lower surface of the rack 131.

On the left side of the rack 130, a sensor 134 for detecting the position of the removing portion 122 and a flag mounting plate 132 for detecting the position of the removing portion 122 in the front-rear direction are provided. At the rear end of the flag mounting plate 132, the removal position (removal portion 122 starts the removal operation, is inserted between the crown portion Sa of the staple S and the paper bundle P, and the staple is inserted from the standby position L1 of the wedge plate 122a. A first flag 132a for detecting the movement of S to the position (position where S is removed from the paper bundle P) L2 is provided. A second flag 132b for detecting the arrival of the wedge plate 122a at the removal position L2 is provided at the front end portion of the flag mounting plate 132. The sensor 134 is composed of a transmissive sensor and detects the first flag 132a and the second flag 132b of the flag mounting plate 132 that moves in the front-rear direction. The detection signal detected by the sensor 134 is supplied to a control unit (not shown), and the control unit controls the operations of the first motor 152 and the second motor 192 based on the detection signal supplied from the sensor 134.

The first drive shaft 136 is inserted into the openings formed in each of the flag mounting plate 132, the rack 130, the plate holder 124, the crown holder 126, and the rack 131 from the left side to the right side of the housing 100.

The second drive shaft 138 is inserted into the openings formed in the flag mounting plate 132, the rack 130, the plate holder 124, and the rack 131 from the left side to the right side of the housing 100.

The holding portion 140 that regulates the movement of the paper bundle P and the staple S in the insertion direction is arranged on the rear side of the crown portion Sa at the removal position L2, and is configured to be able to come into contact with the crown portion Sa pushed by the wedge plate 122a. Will be done. The width of the pressing portion 140 is selected, for example, to a length that can support the crown portion Sa that moves from the front to the rear by the pushing force of the wedge plate 122a and that can be inserted into the groove portion 126a of the crown holder 126.

The presser holder 142 that supports the presser portion 140 is formed of a flat plate processed into a substantially U shape in a top view, and the rear end side of the presser holder 142 is rotatably supported by a shaft 146. One end of the tension spring 144 is attached further behind the shaft 146 of the holding holder 142. The other end of the tension spring 144 is attached to a frame (not shown). A convex portion 142a that can come into contact with the support portion 128b of the holder 128 is provided at the rear upper end portion of the holding holder 142.

The first motor 152 is composed of, for example, a DC motor, a DC brushless motor, or the like. By driving the first motor 152 based on an instruction from a control unit (not shown), the driving force of the first motor 152 is transmitted to the removing unit 120 via a reduction mechanism such as gears 153, 154, 155, and the first motor 152 is removed. The unit 120 is moved forward or backward.

The paper holding portion 170 holds the paper bundle P mounted on the mounting portion 102, and as shown in FIG. 2, at least a part thereof is located above the mounting portion 102, and the mounting portion 102. It is configured to be movable toward. The paper holding portion 170 is driven by the second motor 192.

The paper holding portion 170 includes a paper holding plate 176 that holds the paper bundle P placed on the mounting portion 102, a hold lever 172 that supports the paper holding plate 176, and a pair of paper holding racks 174 that are attached to the hold lever 172. , 175 and.

The hold lever 172 is arranged on the rear side of the housing 100, and the upper side thereof is arranged so as to be exposed from the mounting portion 102 and is covered with the cover portion 104.

The paper holding racks 174 and 175 are provided at the lower front end of the hold lever 172. The paper retainer racks 174 and 175 are substantially fan-shaped and mesh with the paper retainer pinions 198 and 199. The paper retainer racks 174 and 175 convert the rotational motion of the paper retainer pinions 198 and 199 into a substantially linear motion.

The paper holding plate 176 is placed by moving the paper bundle P toward the mounting surface 102a so that the paper bundle P does not deviate from the removing position L2 of the mounting portion 102 during the removal operation of the staple S. The paper bundle P placed on the unit 102 is pressed. The paper holding plate 176 is attached to the hold lever 172 so as to be parallel to or substantially parallel to the mounting portion 102.

The second motor 192 is composed of, for example, a DC motor, a DC brushless motor, or the like. The second motor 192 is driven based on an instruction from a control unit (not shown) to transmit the driving force of the second motor 192 to the paper holding unit 170 via a reduction mechanism such as gears 193, 194, 195. The paper retainer 170 is operated.

[Operation example of staple removal device 1]
Next, the operation of the staple removing device 1 when the staple S is removed from the paper bundle P will be described.

5A to 5G are side views showing an example of the operation of the staple removing device 1 when the staple S is removed from the paper bundle P. 6A to 6E are perspective views showing the operation of the wedge plate 122a and the staple S when the staple S is removed from the paper bundle P. 7A to 7E are diagrams showing the states of the wedge plate 122a and the staple S when the staple S is removed from the paper bundle P.

As shown in FIG. 5A, when removing the staple S from the paper bundle P, first, the paper bundle P bound by the staple S is inserted into the paper bundle insertion slot 108 (at this time, the binding portion is bound). The portion is placed on the mounting surface 102a (aligning the portions with a predetermined position). At this time, the user aligns the paper bundle P with the mark indicating the removal position L2 provided on the mounting surface 102a and mounts the paper bundle P.

Next, when the start switch 106 of the staple removing device 1 is pressed by the user, the second motor 192 is driven, and as shown in FIG. 5B, the paper holding plate 176 moves (descends) in the direction approaching the mounting portion 102. To do. When the paper holding plate 176 moves to a predetermined position, the paper bundle P is pressed by the paper holding plate 176 with a constant pressing force.

Subsequently, after a predetermined time has elapsed from the start of driving the second motor 192, the first motor 152 is driven and the pinion 159 rotates clockwise. When the pinion 159 rotates, the removing portion 120 including the rack 131 and the wedge plate 122a moves forward (moves from the front to the rear with respect to the housing 100).

When the removing portion 122 advances, the second drive shaft 138 of the removing portion 120 moves along the guide groove 115, so that the tip portion of the removing portion 122, that is, the tip portion 122s of the wedge plate 122a is moved as shown in FIG. 5C. It protrudes from the mounting surface 102a through the opening 102b of the mounting portion 102. The removal unit 122 advances while its upper surface is in contact with the back surface of the bottom layer of the paper bundle P.

When the tip of the removing portion 122 moves to the removing position L2, the wedge plate 122a is inserted between the crown portion Sa and the paper bundle P as shown in FIG. 5C. When the wedge plate 122a advances further, the convex portion 142a of the holding holder 142 comes off from the supporting portion 128b of the holder 128. As a result, the pressing portion 140 rises due to the urging of the tension spring 144, and comes into contact with the crown portion Sa of the paper bundle P that moves from the front to the rear by the pushing force of the wedge plate 122a, so that the staple S moves forward. regulate.

When the tip of the wedge plate 122a passes through the removal position L2 and further advances, as shown in FIG. 5D, a side view of the wedge plate 122a inserted between the paper bundle P and the crown portion Sa at the removal position L2. The staples are gradually pulled out from the paper bundle P as the thickness of the paper becomes thicker. The pressing portion 140 is lowered by following the thickness direction of the wedge plate 122a in a state of being in contact with the wedge plate 122a and the crown portion Sa due to the extension of the tension spring 144. As a result, as shown in FIGS. 6C and 7C, the crown portion Sa is pushed by the wedge plate 122a in the direction away from the paper bundle P, and the legs Sb and Sb of the staple S bent inward are the paper of the paper bundle P. It is in a state where it is raised so as to be substantially orthogonal to the surface. As shown in FIG. 5E, when the thickness of the wedge plate 122a in the side view at the removal position L2 becomes thicker, the legs Sb and Sb of the staple S are pulled out from the paper bundle P as shown in FIGS. 6D and 7D. Is done. However, since the legs Sb and Sb are caught on the side surface of the wedge plate 122a due to the springback of the staple S, the staple S does not fall at this stage.

As shown in FIG. 5F, when the wedge plate 122a moves to the end position of the moving range, the staple dropping portion 122c is located at the removing position L2, and the removed staple S is also located at the staple dropping portion 122c. As a result, the legs Sb and Sb of the staple S are separated from the side surface of the wedge plate 122a, and the staple S falls into the accommodating portion 200.

As shown in FIG. 5G, when the removal of the staple S from the paper bundle P is completed, the first motor 152 rotates in the reverse direction, and the pinion 159 also rotates in the counterclockwise direction. When the pinion 159 rotates in the reverse direction, the removing portion 122 moves backward (moves from the rear to the front with respect to the housing 100) along the mounting surface 102a, and the removing portion 120 returns to the standby position L1. Further, after a predetermined time has elapsed from the reverse rotation of the first motor 152, the second motor 192 rotates in the reverse direction and the paper holding pinion 199 rotates counterclockwise, so that the paper holding rack 175 moves substantially upward. When the paper holding rack 175 moves upward, the paper holding plate 176 moves away from the mounting portion 102 via the hold lever 172 and returns to the standby position.

As described above, according to the first embodiment, by advancing the removing portion 122 (wedge plate 122a), the staple S removed from the paper bundle P is located at the staple dropping portion 122c. Therefore, the staple S pulled out from the paper bundle P can be dropped into the accommodating portion 200 without the staple S hugging and sticking to the wedge plate 122a. As a result, it is not necessary for the user to manually remove the staple S from the wedge plate 122a or separately provide a mechanism for dropping the staple S from the wedge plate 122a, and the staple S can be removed from the paper bundle P.

Further, according to the first embodiment, the load received by the staple drop portion 122c (inclination 122c2) is smaller than the load received by the inclination 122c2 of the wedge plate 122a, so that the inclination of the staple drop portion 122c is set to the wedge plate 122a. It can be made larger than the inclination 122a1 of. Since the length of the staple drop portion 122c in the front-rear direction can be shortened by this amount, it is possible to prevent the overall length (size) of the wedge plate 122a from being increased. As a result, one staple removing device 1 can handle a plurality of types of staple S removing operations such as the size of the staple S diameter and the length of the leg portion Sb.

<Second embodiment>
The second embodiment is different from the staple dropping portion 122c of the first embodiment in that the cross section of the staple dropping portion 222c is formed in a tapered shape. In the following description, the same names and reference numerals are used for the parts common to the staple removing device 1 according to the first embodiment, and detailed description thereof will be omitted.

8A is a plan view of the removing portion 222 according to the second embodiment, FIG. 8B is a side view, FIG. 8C is a bottom view, and FIG. 8D is a sectional view taken along line BB of the removing portion 222 shown in FIG. 8A. FIG. 9 is a diagram showing a state of the wedge plate 222a and the staple S when the staple S is removed from the paper bundle P.

As shown in FIGS. 8A to 8C, the removing portion (first inclined portion) 222 includes a wedge plate 222a for removing staples S from the paper bundle P and a mounting portion 222b attached to the plate holder 124 (see FIG. 2A). It is located between the wedge plate 222a and the mounting portion 222b, and includes a staple dropping portion 222c for dropping the staple S removed from the paper bundle P by the wedge plate 222a into the accommodating portion 200.

The staple drop portion 222c is located on the downstream side of the wedge plate 222a in the first direction H. As shown in FIG. 8C, the width of the staple dropping portion 222c is formed so as to gradually narrow from the uppermost portion to the lowermost portion in the thickness direction, and the left and right side surfaces of the staple dropping portion 222c serve as inclined surfaces. There is. The staple drop portion 222c has a narrow portion 222c1 having a width D4 narrower than the maximum width D1 of the wedge plate 222a. The narrow portion 222c1 is located at least at the lowermost portion of the staple dropping portion 222c in the thickness direction of the staple dropping portion 222c. The uppermost width D5 of the staple drop portion 222c is the same as or substantially the same as the maximum width D1 of the wedge plate 222a. Further, as shown in FIG. 8B, the staple dropping portion 222c has an inclined 222c2 which is continuous with the lower surface of the base end portion of the a wedge plate 222a and is formed so as to increase in thickness in the first direction H. The inclination 222c2 with respect to the virtual surface VP is larger than the inclination 222a1 of the wedge plate 222a with respect to the virtual surface VP.

As described above, the staple dropping portion 222c according to the second embodiment is formed in a tapered shape so that the width in the thickness direction gradually narrows from the uppermost portion to the lowermost portion, and is therefore shown in FIG. As described above, the staple S located at the staple dropping portion 222c separates from the staple dropping portion 222c and falls into the accommodating portion 200.

<Third embodiment>
The third embodiment is different from the staple dropping portion 122c of the first embodiment in that the cross section of the staple dropping portion 322c is formed in a substantially T shape. The same names and symbols are used for the parts common to the staple removing device 1 according to the first embodiment, and detailed description thereof will be omitted.

10A is a plan view of the removal unit 322 according to the third embodiment, FIG. 10B is a side view, FIG. 10C is a bottom view, and FIG. 10D is a sectional view taken along line CC of the removal unit 322 shown in FIG. 10A.

As shown in FIGS. 10A and 10B, the removing portion 322 according to the third embodiment includes a wedge plate 322a for removing staples S from the paper bundle P and a mounting portion attached to the plate holder 124 (see FIG. 2A). It is located between the wedge plate 322a and the mounting portion 322b, and includes a staple drop portion 322c for dropping the staple S removed from the paper bundle P by the wedge plate 322a into the accommodating portion 200.

As shown in FIG. 10C, the staple drop portion 322c is located on the downstream side of the wedge plate 322a in the first direction H, and the width is stepwise from the uppermost part to the lowermost part in the thickness direction (two steps in the present embodiment). However, the present invention is not limited to this, and it is formed so as to be narrowed in three or more stages (may be formed in a stepped shape). More specifically, the staple drop portion 322c has a substantially T-shaped cross section, is composed of a wide portion 322c4 having the widest uppermost portion, and has a width narrower than the wide portion 322c4 from the vicinity of the uppermost portion to the lowermost portion. It is composed of a narrow portion 322c5. The width D6 of the narrow portion 322c5 is at least narrower than the distance D3 (see FIG. 7E) between the legs Sb and Sb of the staple S removed from the paper bundle P. The width D7 of the wide portion 322c4 is the same as or substantially the same as the maximum width D1 of the wedge plate 222a. Further, the staple dropping portion 322c has an inclined 322c2 which is continuous with the lower surface of the base end portion of the wedge plate 322a and is formed so as to increase in thickness in the first direction H. The inclination 322c2 with respect to the virtual surface VP is larger than the inclination 322a1 of the wedge plate 322a with respect to the virtual surface VP.

As described above, since the staple dropping portion 322c according to the third embodiment has a substantially T-shaped cross section, the staple S located at the staple dropping portion 222c is stapled by the narrow portion 322c5. It will fall away from the portion 222c and into the accommodating portion 200.

<Fourth Embodiment>
The fourth embodiment is different from the staple dropping portion 122c of the first embodiment in that the cross section of the staple dropping portion 422c is formed in a curved shape. The same names and symbols are used for the parts common to the staple removing device 1 according to the first embodiment, and detailed description thereof will be omitted.

11A is a plan view of the removal unit 422 according to the fourth embodiment, FIG. 11B is a side view, FIG. 11C is a bottom view, and FIG. 11D is a sectional view taken along line DD of the removal unit 422 shown in FIG. 11A.

As shown in FIGS. 11A to 11C, the removing portion 422 according to the fourth embodiment includes a wedge plate 422a for removing staples S from the paper bundle P and a mounting portion attached to the plate holder 124 (see FIG. 2A). It is located between the 422b and the wedge plate 422a and the mounting portion 422b, and includes a staple dropping portion 422c for dropping the staple S removed from the paper bundle P by the wedge plate 422a into the accommodating portion 200 (see FIG. 3). ..

The staple drop portion 422c is located on the downstream side of the wedge plate 422a in the first direction H, and is formed so that the width becomes narrower in a curved shape from the uppermost portion to the lowermost portion in the thickness direction. The width D9 of the uppermost portion of the staple drop portion 422c is the same as or substantially the same as the maximum width D1 of the wedge plate 422a, but is formed in a curved shape from the uppermost portion to the lowermost portion, and is the narrowest narrow portion. The width D8 of 422c1 is configured to be at least narrower than the distance D3 between the legs Sb and Sb of the staple S removed from the paper bundle P. Further, the staple drop portion 422c has an inclination 422c2 that is continuous with the lower surface of the base end portion of the wedge plate 422a and is formed so as to increase in thickness in the first direction H. The inclination 422c2 with respect to the virtual surface VP is larger than the inclination 422a1 of the wedge plate 422a with respect to the virtual surface VP.

As described above, in the staple dropping portion 422c according to the fourth embodiment, the width is formed so as to be narrowed in a curved shape from the uppermost portion to the lowermost portion, so that the staple S located at the staple dropping portion 222c is formed. The narrow portion 422c1 separates from the staple dropping portion 222c and falls into the accommodating portion 200.

<Fifth Embodiment>
The fifth embodiment is different from the staple dropping portion 122c of the first embodiment in that the inclined 522c2 of the staple dropping portion 522c is formed so as to be flush with the inclined 522a1 of the wedge plate 522a. The same names and symbols are used for the parts common to the staple removing device 1 according to the first embodiment, and detailed description thereof will be omitted.

12A is a plan view of the removing portion 522 according to the fifth embodiment, FIG. 12B is a side view, and FIG. 12C is a bottom view.

As shown in FIGS. 12A and 12B, the removing portion 522 according to the fifth embodiment includes a wedge plate 522a for removing staples S from the paper bundle P and a mounting portion attached to the plate holder 124 (see FIG. 2A). It is located between the 522b and the wedge plate 522a and the mounting portion 522b, and includes a staple dropping portion 522c for dropping the staple S removed from the paper bundle P by the wedge plate 522a into the accommodating portion 200.

The staple drop portion 522c is located on the downstream side of the wedge plate 522a in the first direction H, and has an inclination 522c2 formed so as to continuously increase in thickness toward the first direction H. The inclination 522c2 of the staple drop portion 522c is the same as or substantially the same as (continuously) the inclination 522a1 of the wedge plate 522a, and the inclination 522c2 is formed on the same plane as the inclination 522a1 of the wedge plate 522a. Further, the staple dropping portion 522c has a narrow portion 522c1 having a width D10 narrower than the maximum width D1 in the wedge plate 522a. The width D10 of the narrow portion 522c1 is formed so as to be narrower than the distance D3 (see FIG. 7E) between the pair of leg portions Sb and Sb of the staples S removed from the paper bundle P by the wedge plate 522a. Further, the narrow portion 522c1 of the staple drop portion 522c is formed with the same or substantially the same width D10 from the uppermost portion to the lowermost portion in the thickness direction.

As described above, according to the fifth embodiment, as in the first embodiment, by moving the wedge plate 522a forward, the leg portion of the staple S is caused by the inclination 522a1 of the wedge plate 522a. With Sb and Sb removed from the paper bundle P, the staple S can be subsequently dropped into the accommodating portion 200 by the staple dropping portion 522c. Thereby, the staple S can be removed from the paper bundle P without adding a mechanism for dropping the staple S from the wedge plate 522a. Further, by making the inclination 522a1 of the wedge plate 522a and the inclination 522cc1 of the staple dropping portion 522c the same or substantially the same, the removal portion 522 can be easily molded and the cost can be suppressed.

1 Staple removal device 102 Mounting part 122, 222,322,422,522 Removing part 122a, 222a, 322a, 422a, 522a Wedge plate (first inclined part)
122a1,222a1,322a1,422a1,522a1 Inclination of removal part 122b, 222b, 322b, 422b, 522b Mounting part 122c, 222c, 322c, 422c, 522c Staple dropping part 122c1,222c1,322c5,422c1,522c1 Narrow part 122c2 222c2,322c2,422c2,522c2 Inclination of staple drop part 122s Tip part 122k Base end part 200 Storage part P Paper bundle S Staple Sa Crown part Sb Leg part

Claims (10)

A mounting portion on which a bundle of paper bound by staples consisting of a crown portion and a leg portion can be placed so that the crown portion is on the lower side, and a mounting portion.
A removing portion located below the bundle of paper in a state where the bundle of paper is placed on the above-mentioned storage portion, which is configured to be insertable between the crown portion and the bundle of paper, and the crown portion and the bundle of paper. A removing portion that removes the staples from the bundle of paper by being inserted between and
It is located below the removal section and is provided with a storage section for accommodating the removed staples.
The removing portion is a staple removing device having a staple dropping portion for dropping the staple removed from the paper bundle into the accommodating portion. The removing portion is an inclined portion including a tip portion and a base end portion, and is formed so as to continuously or intermittently increase in thickness from the tip portion toward the base end portion in the first direction. Have,
The first inclined portion is configured to be inserted from the tip portion between the crown portion and the paper bundle, and is inserted between the crown portion and the paper bundle to be inserted from the paper bundle. The staple removing device according to claim 1, wherein the staple is removed. The staple removing device according to claim 2, wherein the staple dropping portion is located on the downstream side of the first inclined portion in the first direction. The staple removing device according to claim 3, wherein the staple dropping portion has a narrow portion having a width dimension narrower than the maximum width dimension of the first inclined portion. The staple removing device according to claim 4, wherein the narrow portion has the same or substantially the same width dimension from the uppermost portion to the lowermost portion in the thickness direction. The staple removing device according to claim 4, wherein the narrow portion is located at least at the lowermost portion of the staple dropping portion in the thickness direction of the staple dropping portion. The staple removing device according to any one of claims 1 to 3, wherein the staple dropping portion has a width dimension that gradually narrows from the uppermost portion to the lowermost portion in the thickness direction. The staple removing device according to any one of claims 1 to 3, wherein the staple dropping portion has a width dimension gradually narrowed from the uppermost portion to the lowermost portion in the thickness direction. The staple removing device according to any one of claims 1 to 3, wherein the staple dropping portion has a width dimension narrowed in a curved shape from the uppermost portion to the lowermost portion in the thickness direction. The first inclined portion has a first inclined portion formed so as to increase in thickness in the first direction.
The staple removing device according to any one of claims 2 to 9, wherein the staple dropping portion is formed so as to increase in thickness in the first direction and has a second inclination having a larger inclination than the first inclination.

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