JP4758194B2 - Image forming apparatus - Google Patents

Image forming apparatus Download PDF

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Publication number
JP4758194B2
JP4758194B2 JP2005299045A JP2005299045A JP4758194B2 JP 4758194 B2 JP4758194 B2 JP 4758194B2 JP 2005299045 A JP2005299045 A JP 2005299045A JP 2005299045 A JP2005299045 A JP 2005299045A JP 4758194 B2 JP4758194 B2 JP 4758194B2
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image forming
opening
main body
rail member
forming apparatus
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JP2007108411A (en
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一茂 河村
康太 竹中
正彦 山田
孝昌 白木
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Ricoh Co Ltd
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Ricoh Co Ltd
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本発明は、装置本体に対して開閉自在かつ磁着自在に構成された開閉体の固定構造に関する。   The present invention relates to a fixing structure of an opening / closing body configured to be openable / closable and magnetically attachable to an apparatus body.

一般的な電子写真式複写装置あるいはプリンタ等の画像形成装置では、トナー補給ユニットあるいはプロセスユニット等を交換するためあるいはジャム処理等のメンテナンスを行う目的から、装置本体の例えば操作面側にその一端を軸支された開閉自在な外装カバーが設けられている。このような画像形成装置として、閉塞位置における外装カバーの固定を磁力によって行うものが一般的に知られており、例えば外装カバーにマグネットを取り付け、これに対応する装置本体に鉄等の磁性体を固定して、両者を着脱する構成が採用されている。このような画像形成装置が、例えば「特許文献１」に開示されている。   In an image forming apparatus such as a general electrophotographic copying apparatus or printer, one end of the image forming apparatus is disposed on the operation surface side of the apparatus main body for the purpose of replacing a toner replenishing unit or a process unit or performing maintenance such as jam processing. A pivotally supported openable / closable exterior cover is provided. As such an image forming apparatus, it is generally known that the exterior cover is fixed by a magnetic force at the closed position. For example, a magnet is attached to the exterior cover, and a magnetic body such as iron is attached to the corresponding apparatus body. The structure which fixes and removes both is employ | adopted. Such an image forming apparatus is disclosed in, for example, “Patent Document 1”.

特開２００２−２７１０５２号公報Japanese Patent Laid-Open No. 2002-271052

最近の画像形成装置では、操作性を向上するために装置手前側に引出し可能な給紙トレイを装置本体の前面に位置する外装カバー内に収納したものが主流である。このような画像形成装置において外装カバーの固定を磁力で行う際に、外装カバー側に設けられたマグネットに対向して装置本体側に設けられる磁性体の配設空間を確保しなくてはならないが、外装カバーに対向する部位には給紙トレイが配設されているため、磁性体を配設するために余分な空間を設ける必要が生じ、装置の小型化の妨げとなってしまうという問題点がある。   In recent image forming apparatuses, in order to improve the operability, the mainstream is one in which a paper feed tray that can be pulled out to the front side of the apparatus is housed in an exterior cover located on the front surface of the apparatus main body. In such an image forming apparatus, when the exterior cover is fixed with a magnetic force, it is necessary to secure a space for arranging the magnetic body provided on the apparatus main body side so as to face the magnet provided on the exterior cover side. Since the paper feed tray is disposed at the portion facing the exterior cover, it is necessary to provide an extra space for disposing the magnetic material, which hinders downsizing of the apparatus. There is.

本発明は上記問題点を解決し、余分な空間を設けることなく外装カバーを磁力により固定することが可能な画像形成装置の提供を目的とする。   SUMMARY An advantage of some aspects of the invention is that it provides an image forming apparatus that can fix an exterior cover by a magnetic force without providing an extra space.

請求項１記載の発明は、装置本体に一端部を開閉自在に支持された開閉体と、前記開閉体の近傍に配置され給紙トレイを前記装置本体の手前側へ引き出し自在に支持するレール部材とを有する画像形成装置において、前記開閉体の他端部にはその閉塞位置において該開閉体を前記装置本体に対して保持するマグネットを有し、前記レール部材は前記開閉体が閉塞位置を占めたときに前記マグネットと磁着する磁着部を有することを特徴とする。 According to the first aspect of the present invention, an opening / closing body whose one end is supported to be openable / closable on the apparatus main body, and a rail member which is disposed in the vicinity of the opening / closing body and supports the paper feed tray so as to be able to be pulled out to the near side of the apparatus main body. In the image forming apparatus, the other end of the opening / closing body has a magnet for holding the opening / closing body with respect to the apparatus main body in the closed position, and the rail member occupies the closed position in the rail member. And a magnetized portion that is magnetized with the magnet.

本発明によれば、開閉体を閉塞位置に固定するための構成としてトレイを支持するレール部材に一体形成された磁着部を用いることができ、余分な空間を設けることなく開閉体の固定機構を構成することにより装置の小型化及びコストダウンを図ることができる。   According to the present invention, as a configuration for fixing the opening / closing body at the closed position, a magnetically bonded portion integrally formed on the rail member that supports the tray can be used, and the opening / closing body fixing mechanism is provided without providing an extra space. By configuring the apparatus, it is possible to reduce the size and cost of the apparatus.

図１は、本発明の一実施形態を採用した画像形成装置である電子写真式複写機を示している。同図において画像形成装置１は、装置本体２の内部に給紙装置としての給紙部、画像形成部、定着部、反転部、画像読取部等を有している。装置本体２の前面には、図１において右側部を装置本体２に支持された前面カバー３が開閉自在に取り付けられており、その下方には装置手前側に引出し可能である、いわゆるフロントローディング方式のトレイである給紙トレイ４，５が配設されている。各給紙トレイ４，５は、内部に複数枚の用紙を貯容可能に構成されており、貯容可能な用紙サイズを変更可能に構成されている。通常、各給紙トレイ４，５には互いに異なるサイズの用紙が貯容される。   FIG. 1 shows an electrophotographic copying machine which is an image forming apparatus employing an embodiment of the present invention. In FIG. 1, the image forming apparatus 1 includes a paper feeding unit, an image forming unit, a fixing unit, a reversing unit, an image reading unit, and the like as a paper feeding device inside an apparatus main body 2. A front cover 3 is attached to the front surface of the apparatus main body 2 so that the right side in FIG. 1 is supported by the apparatus main body 2 so as to be openable and closable. The paper feed trays 4 and 5 are provided. Each of the paper feed trays 4 and 5 is configured to be capable of storing a plurality of sheets therein, and is configured to be able to change the size of the sheets that can be stored. Normally, sheets of different sizes are stored in the sheet feeding trays 4 and 5.

給紙トレイ４は、その左側部を図２及び図３にも示すレール部材６によって装置手前側に引き出し自在に支持されており、その右側部もレール部材６と同様の図示しないレール部材によって装置手前側に引き出し自在に支持されている。給紙トレイ５も給紙トレイ４と同様に図示しない一対のレール部材によってその両側部を支持されており、装置手前側に引き出し自在に構成されている。各給紙トレイ４，５は、それぞれその前部左側に取っ手４ａ，５ａを有しており、取っ手４ａ，５ａを手前側に引っ張ることにより図示しないロック装置が解除され、装置本体２からの引き出しが許容されるように構成されている。   The left side of the paper feed tray 4 is supported by a rail member 6 also shown in FIGS. 2 and 3 so that it can be pulled out toward the front of the apparatus. The right side of the paper feed tray 4 is also supported by a rail member (not shown) similar to the rail member 6. It is supported at the front side so that it can be pulled out. Similarly to the paper feed tray 4, both sides of the paper feed tray 5 are supported by a pair of rail members (not shown) and can be pulled out to the front side of the apparatus. Each of the paper feed trays 4 and 5 has handles 4 a and 5 a on the left side of the front part thereof. By pulling the handles 4 a and 5 a toward the front side, a lock device (not shown) is released, and the drawer is pulled out from the apparatus main body 2. Is configured to be allowed.

レール部材６の左側に位置する装置本体２内部には空間が設けられており、この空間内には例えばジャム処理時において操作するレバー、交換可能なトナーカートリッジ等が設けられていて、この空間の装置前面側には開閉体としてのカバー７が配設されている。カバー７はその左側部を装置本体２に開閉自在に支持されており、その右側部にはカバー７を開閉する際に把持される取っ手７ａと閉塞位置において装置本体２に対してカバー７を固定するためのマグネット８とが設けられている。   A space is provided in the apparatus main body 2 located on the left side of the rail member 6. In this space, for example, a lever that is operated during jam processing, a replaceable toner cartridge, and the like are provided. A cover 7 as an opening / closing body is disposed on the front side of the apparatus. The cover 7 is supported by the apparatus main body 2 so that the left side of the cover 7 can be opened and closed. The handle 7a gripped when the cover 7 is opened and closed and the cover 7 is fixed to the apparatus main body 2 at the closed position. And a magnet 8 are provided.

上述の構成において、レール部材６を鉄等の磁性材料からなる板材によって構成し、図３に示すようにその装置手前側の一部を折り曲げてマグネット８が磁着可能な磁着部６ａを形成して、磁着部６ａをカバー７の閉塞位置においてマグネット８と対応する位置に配置することにより、カバー７を閉塞位置に固定するための構成として給紙トレイ４を支持するレール部材６に一体形成された磁着部６ａを用いることができ、余分な空間を設けることなくカバー７の固定機構を構成することにより装置の小型化及びコストダウンを図ることができる。   In the above-described configuration, the rail member 6 is made of a plate material made of a magnetic material such as iron, and as shown in FIG. 3, a part on the front side of the device is bent to form a magnetized portion 6a on which the magnet 8 can be magnetized. Then, by arranging the magnetized portion 6a at a position corresponding to the magnet 8 at the closed position of the cover 7, it is integrated with the rail member 6 that supports the paper feed tray 4 as a configuration for fixing the cover 7 at the closed position. The formed magnetized portion 6a can be used, and the device can be reduced in size and cost can be reduced by constituting the fixing mechanism of the cover 7 without providing an extra space.

上記実施形態では、レール部材６を鉄等の磁性材料から構成して磁着部６ａを一体形成する構成を示したが、レール部材として非磁性材料の例えば樹脂製のものを用い、磁着部として例えば鉄等の磁性材料からなるものをレール部材に一体的に固定する構成としてもよい。これにより軽量化及びコストダウンを図ることができる。   In the above-described embodiment, the rail member 6 is made of a magnetic material such as iron and the magnetized portion 6a is integrally formed. However, the rail member is made of a nonmagnetic material such as a resin, and the magnetized portion For example, a structure made of a magnetic material such as iron may be integrally fixed to the rail member. Thereby, weight reduction and cost reduction can be achieved.

上記実施形態では、画像形成装置１の装置本体２に開閉自在に支持されたカバー７を閉塞位置に固定するマグネット８が磁着する磁着部６ａを、給紙トレイ４を支持するレール部材６に形成する構成を示したが、本発明が適用可能な構成はこれに限られず、トレイの近傍に開閉自在に支持された開閉体のマグネットに磁着する磁着部を、トレイを支持するレール部材に設ける構成であれば、どのような構成にも適用可能である。   In the above-described embodiment, the magnetized portion 6 a to which the magnet 8 that fixes the cover 7 that is supported by the apparatus main body 2 of the image forming apparatus 1 so as to be freely opened and closed is magnetically attached to the rail member 6 that supports the paper feed tray 4. However, the configuration to which the present invention can be applied is not limited to this, and a magnetized portion that is magnetically attached to a magnet of an opening / closing body that is supported in the vicinity of the tray so as to be freely opened and closed is a rail that supports the tray. Any configuration can be applied as long as the configuration is provided on the member.

本発明の一実施形態を採用した画像形成装置の概略斜視図である。1 is a schematic perspective view of an image forming apparatus employing an embodiment of the present invention. 本発明の一実施形態に用いられるレール部材及び開閉体及びマグネット及び磁着部を説明する概略図である。It is the schematic explaining the rail member used in one Embodiment of this invention, an opening-closing body, a magnet, and a magnetic attachment part. 本発明の一実施形態に用いられるレール部材を示す概略図である。It is the schematic which shows the rail member used for one Embodiment of this invention.

符号の説明Explanation of symbols

１ 画像形成装置（電子写真式複写機）
２ 装置本体
４，５ トレイ（給紙トレイ）
６ レール部材
６ａ 磁着部
７ 開閉体（カバー）
８ マグネット 1 Image forming device (electrophotographic copying machine)
2 Main body 4,5 Tray (paper feed tray)
6 Rail member 6a Magnetized part 7 Opening and closing body (cover)
8 Magnet

Claims (1)

装置本体に一端部を開閉自在に支持された開閉体と、前記開閉体の近傍に配置され給紙トレイを前記装置本体の手前側へ引き出し自在に支持するレール部材とを有する画像形成装置において、
前記開閉体の他端部にはその閉塞位置において該開閉体を前記装置本体に対して保持するマグネットを有し、前記レール部材は前記開閉体が閉塞位置を占めたときに前記マグネットと磁着する磁着部を有することを特徴とする画像形成装置。 In an image forming apparatus, comprising: an opening / closing body whose one end is supported to be openable / closable on the apparatus main body; and a rail member which is disposed in the vicinity of the opening / closing body and supports the paper feed tray so as to be able to be pulled out to the near side of the apparatus main body.
The other end of the opening / closing body has a magnet for holding the opening / closing body with respect to the apparatus main body at the closed position, and the rail member is magnetically attached to the magnet when the opening / closing body occupies the closed position. An image forming apparatus having a magnetically attached part.
JP2005299045A 2005-10-13 2005-10-13 Image forming apparatus Expired - Fee Related JP4758194B2 (en)

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