JP3565361B2 - Staple remover and image forming apparatus - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a staple remover and an image forming apparatus using the staple remover.
[0002]
[Prior art]
When an image forming apparatus such as a copying machine or a facsimile uses a document feeder that automatically conveys a document, it is necessary to remove staples from a document stapled in advance. A staple remover is provided as a device for removing staples stopped on a document.
[0003]
JP-A-59-50455 discloses a staple remover provided on the upper surface of a copying machine. The staple remover is mounted in a recess formed in the upper wall of the copying machine, and the tip of the strip portion projects further upward from the upper wall of the copying machine. When removing staples, the leading end of the strip portion is inserted between the sheet and the staple, and the sheet is moved in this state. Then, the staples are removed from the sheet. Here, since the staple remover is provided in the copying machine, the worker using the copying machine does not need to carry the staple remover, and the staple remover can be prevented from being lost.
[0004]
[Problems to be solved by the invention]
In the staple remover disclosed in Japanese Patent Application Laid-Open No. 59-50455, since the leading end of the strip portion protrudes upward from the upper wall of the copying machine, clothes of an operator may be caught on the leading end of the strip blade during the copying operation. Possible and dangerous.
[0005]
An object of the present invention is to enhance safety of a staple remover provided in an image forming apparatus.
[0006]
[Means for Solving the Problems]
A staple remover according to one aspect of the present invention is provided on an upper wall of an image forming apparatus and is for removing staples fixed to a sheet, and includes a remover body and a cover. The remover body has a strip portion disposed above the upper wall, and is provided on the upper wall. The cover is provided above the strip so as to be close to the strip. Further, the remover main body is provided so as to be movable in a vertical direction with respect to the upper wall . Further, there is provided an urging member for urging the remover body upward.
[0007]
In addition, it is preferable that the remover main body has a contact portion that can contact the upper wall from below. It is preferable that a paper pressing portion is formed on the cover portion so as to face the strip portion. It is preferable to further include a collection box provided on the upper wall below the strip portion. It is preferable that the cover portion and the collection box are formed integrally, and are detachably mounted on the upper wall.
[0008]
An image forming apparatus according to another aspect of the present invention includes an image forming apparatus main body and a staple remover. The image forming apparatus main body is a device for reading and processing an image of a document. The staple remover is for removing staples fixed to a sheet, and includes a remover body and a cover. The remover main body has a strip portion disposed above the upper wall of the image forming apparatus main body, and is provided on the upper wall. The cover is provided above the strip so as to be close to the strip. Further, the remover main body is provided so as to be movable in a vertical direction with respect to the upper wall. Further, the staple includes an urging member for urging the remover body upward .
[0009]
[Action]
In the present invention, since the cover portion is arranged close to the strip portion of the remover body, the worker is not injured by the strip portion. When removing the staples, the portion of the sheet where the staples are stopped is inserted between the cover portion and the strip portion, and the sheet is moved such that the strip portion enters between the staples and the sheet. The staples are then removed from the sheet. Further, movable in the vertical direction with respect to the upper wall remover body is provided with the biasing member to further urge the remover body upwards, in accordance with sheet thickness by biasing member elastically deforms The vertical position of the remover body is adjusted.
[0010]
If the cover is formed with a paper pressing portion facing the strip portion, when the sheet is inserted between the strip portion and the paper pressing portion, the sheet is sandwiched between the strip portion and the paper pressing portion. . This ensures that the strip enters between the paper and the staples.
[0011]
If a collection box is further provided, the staples are collected in the collection box. Thereby, the beautiful appearance around the staple remover is maintained without scattering the staples.
[0012]
【Example】
FIG. 1 shows a copying machine in which one embodiment of the present invention is adopted. This copying machine mainly has a copying machine main body 1 and a sorter 2 arranged on the side of the copying machine main body 1.
[0013]
The copier main body 1 includes therein an image forming section, a document scanning section disposed above the image forming section, and a sheet transport for supplying a sheet to the image forming section and discharging a sheet from the image forming section. Device. The image forming section includes a photosensitive drum disposed in the center and a charging device, a developing device, a transfer device, a sheet separating device, and a cleaning device disposed around the photosensitive drum. The document scanning unit has an optical system disposed above the image forming unit, a document table disposed above the optical system, and a document cover 3 disposed on the document table. The document cover 3 is provided on the copier body 1 so as to be openable and closable, and has a shape that covers the upper surface of the document table. An automatic document feeder 4 is provided on the upper surface of the document table 3.
[0014]
An operation panel 5 for operating the copying machine main body 1 is provided at a front side of the upper surface of the copying machine main body 1. On the operation panel 5, a liquid crystal display for displaying an operation mode and the like, ten keys for inputting numerical values such as the number of copies, and a print button for instructing the start of a copy operation are arranged.
[0015]
As shown in FIG. 3, a recess 7a is formed in the upper wall 7 of the document cover 3, and the staple remover 6 is mounted in the recess 7a. The staple remover 6 includes a remover main body 11, a cover 14, and a coil spring 15, as shown in FIGS. The remover main body 11 has a strip portion 11a disposed above the upper wall 7. The strip portion 11a extends substantially parallel to the upper wall 7, but its tip is slightly inclined upward. The lower surface of the strip portion 11a is tapered. The remover main body 11 has a locking portion 11b (abutting portion) on the side opposite to the strip portion 11a. The locking portion 11b is inserted into a spring storage chamber 7b formed on the upper wall 7. In this state, the remover main body 11 is vertically movable by a predetermined distance with respect to the upper wall 7. A coil spring 15 is arranged in the spring storage chamber 7b. The coil spring 15 urges the remover body 11 upward.
[0016]
The cover 14 is arranged above and close to the strip portion 11a. A portion of the cover 14 corresponding to the strip portion 11a is a transparent window 16 made of acrylic resin. At the lower portion of the transparent window 16, a raised paper pressing portion 16a facing the upper surface of the strip portion 11a is formed. The cover 14 further has a collection box 17 which extends downward integrally and is placed in the recess 7a. A magnet 18 is embedded in the bottom of the collection box 17. The cover 14 has a first engaging portion 19 and a second engaging portion 20 which are detachably engaged with the upper wall 7.
[0017]
Since the strip portion 11a is stored under the cover 14, the operator is not injured by the strip portion 11a.
[0018]
When the staple remover 6 is used, as shown in FIG. 4, the portion of the paper P where the staple S is stopped is inserted into the cover 14 and the remover main body 11, and the staple S is disposed at the tip of the strip portion 11a (staple). S's back is down). At this time, it can be confirmed by the transparent window 16 that the staple S has been arranged at the tip of the strip portion 11a. When the paper is inserted, the remover body 11 moves downward while compressing the coil spring 15 according to the thickness of the paper P. As described above, the position of the remover main body 11 is automatically adjusted according to the thickness (number of sheets) of the paper P. At this time, the remover main body 11 is urged upward by the elastic force of the coil spring 15, and the paper P is pressed between the upper surface of the strip portion 11a and the paper pressing portion 16a. As a result, the leading end of the strip portion 11a is reliably inserted between the paper P and the back portion of the staple S.
[0019]
Further, in this embodiment, in particular, the tip of the strip 11a is inclined upward, and the paper presser 16a is arranged to bend the tip of the paper P upward. The tip of the strip portion 11a easily enters between the paper P and the staple S.
[0020]
When the paper P is pulled leftward in the drawing from the state shown in FIG. 4, the staples S are removed from the paper P by the strip portion 11a. The staples S fall and are collected in the collection box 17. Thereby, the beautiful appearance around the staple remover 6 is maintained without scattering the staples S.
[0021]
The state of accumulation of the staples S in the collection box 17 can be easily confirmed by the transparent window 16. When a large amount of staples S accumulate, the first engagement portion 19 and the second engagement portion 20 of the cover 14 are separated from the upper wall 7 as shown in FIG. The staple S is discarded from the collection box 17 of the cover 14 removed from the copying machine main body 1 in this manner. Since the cover 14 is detachable, the staples S can be easily discarded.
[0022]
【The invention's effect】
In the present invention, since the cover portion is arranged close to the strip portion of the remover main body, the operator is not injured by the strip portion. Further, movable in the vertical direction with respect to the upper wall remover body is provided with the biasing member further urges the remover body upwards, in accordance with sheet thickness by biasing member elastically deforms Adjust the vertical position of the remover body.
[0023]
In the case where the paper holding section facing the strip section is formed on the cover section, when the sheet is inserted between the strip section and the paper holding section, the sheet is sandwiched between the strip section and the paper holding section. This ensures that the strip enters between the paper and the staples. If a collection box is further provided, the staples are collected in the collection box. Thereby, the beautiful appearance around the staple remover is maintained without scattering the staples.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a copier employing one embodiment of the present invention.
FIG. 2 is a top view of the staple remover.
FIG. 3 is a sectional view taken along the line III-III in FIG. 2;
FIG. 4 is a view corresponding to FIG. 3, showing a staple removing operation;
FIG. 5 is a view corresponding to FIG. 3, illustrating the attachment / detachment operation of the staple remover.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Copier main body 6 Staple remover 7 Upper wall 7a Depression 11 Remover main body 11a Strip section
11b Locking part (contact part)
14 Cover 15 Coil spring (biasing member)
17 Collection box

Claims (8)

A staple remover provided on an upper wall of the image forming apparatus for removing staples fixed to a sheet,
A remover body having a strip portion disposed above the upper wall, the remover body being provided on the upper wall;
And a cover portion which is provided so as to be close to the strip portion above the strip portion,
The remover body is provided so as to be vertically movable with respect to the upper wall ,
Further comprising a biasing member for biasing the remover body upward,
Staple remover. The remover body has a can abut the abutting member from below before SL on the walls, staple remover as claimed in claim 1. Wherein the cover portion is formed with a paper pressing portion facing the strip portion, the staple remover according to claim 1 or 2. The staple remover according to any one of claims 1 to 3, further comprising a collection box provided on the upper wall below the strip portion. An image forming apparatus main body that reads and processes an image of a document,
A remover body having a strip portion disposed above an upper wall of the image forming apparatus main body and provided on the upper wall; and a cover portion provided above the strip portion and close to the strip portion. Wherein the remover body is provided movably in the vertical direction with respect to the upper wall, further comprising a biasing member for biasing the remover body upward, and a staple for removing staples fixed to a sheet. Remover,
An image forming apparatus comprising: The remover body, from the lower before SL on the walls has a can abut the abutment member, an image forming apparatus according to claim 5. The image forming apparatus according to claim 5 , wherein a paper pressing portion is formed on the cover portion so as to face the strip portion. The image forming apparatus according to claim 5, wherein the staple remover further includes a collection box provided on the upper wall below the strip portion.

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