JP7035450B2 - Frame structure and image forming device - Google Patents

Frame structure and image forming device Download PDF

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JP7035450B2
JP7035450B2 JP2017207760A JP2017207760A JP7035450B2 JP 7035450 B2 JP7035450 B2 JP 7035450B2 JP 2017207760 A JP2017207760 A JP 2017207760A JP 2017207760 A JP2017207760 A JP 2017207760A JP 7035450 B2 JP7035450 B2 JP 7035450B2
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side plates
connecting member
frame structure
abutting
bent
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JP2019078967A (en
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庄平 松浪
直人 千葉
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Fujifilm Business Innovation Corp
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Fuji Xerox Co Ltd
Fujifilm Business Innovation Corp
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Description

本発明は、枠体構造及び画像形成装置に関する。 The present invention relates to a frame structure and an image forming apparatus.

互いに固定される第１板部材と第２板部材とを有する画像形成装置用フレームであって、
第１板部材は、第２板部材に垂直に突き当たって第２板部材の第１板部材に対する位置を決める位置決め部と、第２板部材に沿うよう曲げられた曲げ部と、曲げ部に設けられ第２板部材に固定される被固定部と、を有し、第２板部材は、被固定部が固定される固定部を有し、位置決め部の先端の方が被固定部よりも第２板部材側に突出した位置に配置され、第２板部材が撓むことで、第２板部材が位置決め部と当接しつつ、固定部が被固定部と当接して固定されることにより、第１板部材と第２板部材とが固定されている画像形成装置用フレームが知られている（特許文献１）。 An image forming apparatus frame having a first plate member and a second plate member fixed to each other.
The first plate member is provided at a positioning portion that abuts perpendicularly to the second plate member to determine the position of the second plate member with respect to the first plate member, a bent portion that is bent along the second plate member, and a bent portion. The second plate member has a fixed portion to be fixed to the second plate member, and the second plate member has a fixed portion to which the fixed portion is fixed, and the tip of the positioning portion is higher than the fixed portion. It is arranged at a position protruding toward the two-plate member side, and the second plate member bends so that the second plate member abuts on the positioning portion and the fixed portion abuts on the fixed portion and is fixed. A frame for an image forming apparatus in which a first plate member and a second plate member are fixed is known (Patent Document 1).

第１の枠体部品と、第１の枠体部品に締結される第２の枠体部品とを具備する装置枠体であって、第１の枠体部品の第１の締結部分及び第２の枠体部品の第２の締結部分の少なくとも一方には、 固定するための固定領域と、固定領域の周囲に設けられたスリットとを有し、第１の枠体部品に第２の枠体部品を突き当てて固定する際に第１の締結部分と第２の締結部分が離間しているときは、スリットにより固定領域が変形することで第１の締結部分と第２の締結部分が接触して第１の枠体部品と第２の枠体部品とが締結される装置枠体も知られている（特許文献２）。 A device frame including a first frame component and a second frame component fastened to the first frame component, the first fastening portion and the second fastening portion of the first frame component. At least one of the second fastening portions of the frame body component of the above has a fixing area for fixing and a slit provided around the fixing area, and the first frame body component has a second frame body. When the first fastening portion and the second fastening portion are separated from each other when the parts are abutted and fixed, the fixing region is deformed by the slit, so that the first fastening portion and the second fastening portion come into contact with each other. A device frame body to which the first frame body component and the second frame body component are fastened is also known (Patent Document 2).

特開２０１５－１６３９５９号公報JP-A-2015-163959 特開２０１５－１１８３３９号公報Japanese Unexamined Patent Publication No. 2015-118339

本発明は、枠体の前後側板を連結部材で連結して前後側板間の距離を画定する枠体構造において、締結部が突き当て部が側板に突き当てられる突き当て位置の延長線上に設けられていない構成に比べて、締結部の締結力に伴う側板の変形を抑制することができる枠体構造及び画像形成装置を提供することを目的とする。 INDUSTRIAL APPLICABILITY In the frame structure in which the front and rear side plates of the frame body are connected by a connecting member to define the distance between the front and rear side plates, the fastening portion is provided on the extension line of the abutting position where the abutting portion is abutted against the side plates. It is an object of the present invention to provide a frame structure and an image forming apparatus capable of suppressing deformation of a side plate due to a fastening force of a fastening portion as compared with a configuration not provided.

前記課題を解決するために、請求項１に記載の枠体構造は、
対向する一対の側板と、
前記側板間に配置されて前記側板間の距離を画定する連結部材と、を備え、
前記連結部材は、前記側板の被締結部に固定される締結部、前記側板に突き当てられる突き当て部、ならびに、第１の折り曲げ線および第２の折り曲げ線を含む少なくとも２つの折り曲げ線によって連結される前記側板間を結ぶ方向に延びる連結部および前記側板の内面に接触する折り曲げ部を有し、
前記第１の折り曲げ線と前記第２の折り曲げ線は逆方向に折り曲げられ前記連結部と前記折り曲げ部との間に凸形状の凸部が形成され、
前記折り曲げ部は、前記凸部から前記連結部側に延び、前記連結部を延長した面と交差する部位を備え、
前記締結部が前記突き当て部が前記側板に突き当てられる突き当て位置の延長線上、かつ、前記折り曲げ部の前記連結部を延長面上に設けられている、
ことを特徴とする
In order to solve the above problems, the frame structure according to claim 1 is
A pair of facing side plates and
A connecting member arranged between the side plates and defining a distance between the side plates is provided.
The connecting member is connected by a fastening portion fixed to a fastened portion of the side plate, an abutting portion abutted against the side plate , and at least two bending lines including a first bending line and a second bending line. It has a connecting portion extending in a direction connecting the side plates and a bent portion in contact with the inner surface of the side plates .
The first bending line and the second bending line are bent in opposite directions to form a convex convex portion between the connecting portion and the bent portion.
The bent portion includes a portion extending from the convex portion toward the connecting portion and intersecting the surface extending the connecting portion.
The fastening portion is provided on an extension line of the abutting position where the abutting portion is abutted against the side plate , and the connecting portion of the bent portion is provided on the extension surface .
Characterized by

請求項２記載の枠体構造は、
対向する一対の側板と、
前記側板間に配置されて前記側板間の距離を画定する連結部材、を備え、
前記連結部材は、前記側板の被締結部に固定される締結部、と前記側板に突き当てられる突き当て部、ならびに、折り曲げ線によって連結される前記側板間を結ぶ方向に延びる連結部および前記側板の内面に接触する折り曲げ部を有し、
前記折り曲げ部は、前記折り曲げ線を跨ぐ切り欠き部によって前記連結部を延長した面と交差する部位を備え、
前記締結部が前記突き当て部が前記側板に突き当てられる突き当て位置の延長線上、かつ、前記折り曲げ部の前記連結部を延長面上に設けられている、
ことを特徴とする。
The frame structure according to claim 2 is
A pair of facing side plates and
A connecting member , which is arranged between the side plates and defines a distance between the side plates, is provided.
The connecting member includes a fastening portion fixed to a fastened portion of the side plate, an abutting portion abutted against the side plate , and a connecting portion extending in a direction connecting the side plates connected by a bending line and the side plate. Has a bent part that comes into contact with the inner surface of
The bent portion includes a portion that intersects with a surface extending the connecting portion by a notch portion that straddles the bending line.
The fastening portion is provided on an extension line of the abutting position where the abutting portion is abutted against the side plate , and the connecting portion of the bent portion is provided on the extension surface .
It is characterized by that.

請求項３記載の発明は、請求項１または２に記載の枠体構造において、
前記突き当て部は、前記折り曲げ部の前記側板と接触する側の面から突出して形成され、
前記被締結部は、前記連結部材が接触する側の面に形成された凸形状の絞り部に形成され、
前記凸形状の絞り部の凸形状高さは、前記突き当て部の前記側板と接触する側の面から突出量よりも大きい
ことを特徴とする。
The invention according to claim 3 has the frame structure according to claim 1 or 2 .
The abutting portion is formed so as to project from the surface of the bent portion on the side in contact with the side plate .
The fastened portion is formed in a convex throttle portion formed on the surface on the side where the connecting member comes into contact.
The convex height of the convex squeezed portion is larger than the amount of protrusion from the surface of the abutting portion on the side in contact with the side plate.
It is characterized by that.

請求項４記載の発明は、請求項３に記載の枠体構造において、
前記連結部材は板材で構成され、
前記凸形状の絞り部の凸形状高さは、前記連結部材の板厚よりも大きい
ことを特徴とする。
The invention according to claim 4 has the frame structure according to claim 3.
The connecting member is made of a plate material.
The convex height of the convex throttle portion is larger than the plate thickness of the connecting member.
It is characterized by that .

前記課題を解決するために、請求項５に記載の画像形成装置は、
請求項１ないし４のいずれか１項に記載の枠体構造を備えた、
ことを特徴とする。
In order to solve the above problems, the image forming apparatus according to claim 5 is used.
The frame structure according to any one of claims 1 to 4 is provided.
It is characterized by that.

請求項１、５に記載の発明によれば、締結部が突き当て部が側板に突き当てられる突き当て位置の延長線上に設けられていない構成に比べて、締結部の締結力に伴う側板の変形を抑制することができる。
According to the first and fifth aspects of the invention, as compared with the configuration in which the fastening portion is not provided on the extension line of the abutting position where the abutting portion is abutted against the side plate, the side plate due to the fastening force of the fastening portion is provided. Deformation can be suppressed.

請求項２に記載の発明によれば、締結部が突き当て部が側板に突き当てられる突き当て位置の延長線上に設けられていない構成に比べて、締結部の締結力に伴う側板の変形を抑制することができる。
According to the second aspect of the present invention, the deformation of the side plate due to the fastening force of the fastening portion is different from the configuration in which the fastening portion is not provided on the extension line of the abutting position where the abutting portion is abutted against the side plate. It can be suppressed.

請求項３に記載の発明によれば、側板間の距離を画定することができる。
According to the invention of claim 3, the distance between the side plates can be defined.

請求項４に記載の発明によれば、
締結部と被締結部の締結力に伴う側板の変形を抑制することができる。
According to the invention of claim 4 ,
Deformation of the side plate due to the fastening force between the fastening portion and the fastened portion can be suppressed.

画像形成装置の内部構成を示す断面模式図である。It is sectional drawing which shows the internal structure of an image forming apparatus. 枠体構造の外観斜視図である。It is an external perspective view of a frame structure. 連結部材の突き当て部と締結部の一例を示す斜視図である。It is a perspective view which shows an example of the abutting portion and the fastening portion of a connecting member. 側板と連結部材との連結を示す図であり、（ａ）は横断面模式図、（ｂ）は縦断面模式図である。It is a figure which shows the connection between a side plate and a connecting member, (a) is a schematic cross-sectional view, and (b) is a schematic vertical cross-sectional view. 連結部材の突き当て部と締結部の配置を示す図である。It is a figure which shows the arrangement of the abutting part and the fastening part of a connecting member. 変形例１に係る突き当て部と締結部を示す斜視図である。It is a perspective view which shows the abutment part and the fastening part which concerns on modification 1. FIG. 側板の被締結部の強度向上のために形成された絞り部を示す図であり、（ａ）は側板の裏面を示す背面図、（ｂ）は横断面模式図、（ｃ）は縦断面模式図である。It is a figure which shows the drawing part formed for the strength improvement of the to be fastened part of a side plate, (a) is a back view which shows the back surface of a side plate, (b) is a schematic cross-sectional view, (c) is a schematic vertical section. It is a figure. 変形例２に係る側板の被締結部の強度向上のために形成された絞り部を示す図であり、（ａ）は横断面模式図、（ｂ）は縦断面模式図である。It is a figure which shows the drawing part formed for the strength improvement of the to be fastened part of the side plate which concerns on modification 2, (a) is a schematic cross-sectional view, and (b) is a schematic vertical cross-sectional view. 側板と変形例３に係る連結部材との連結を示す図であり、（ａ）は横断面模式図、（ｂ）は縦断面模式図である。It is a figure which shows the connection between the side plate and the connecting member which concerns on modification 3, (a) is a schematic cross-sectional view, and (b) is a schematic vertical sectional view.

次に図面を参照しながら、以下に実施形態及び具体例を挙げ、本発明を更に詳細に説明するが、本発明はこれらの実施形態及び具体例に限定されるものではない。
また、以下の図面を使用した説明において、図面は模式的なものであり、各寸法の比率等は現実のものとは異なることに留意すべきであり、理解の容易のために説明に必要な部材以外の図示は適宜省略されている。
尚、以後の説明の理解を容易にするために、図面において、前後方向をＸ軸方向、左右方向をＹ軸方向、上下方向をＺ軸方向とする。 Next, with reference to the drawings, embodiments and specific examples will be given below to explain the present invention in more detail, but the present invention is not limited to these embodiments and specific examples.
In addition, in the explanation using the following drawings, it should be noted that the drawings are schematic and the ratio of each dimension is different from the actual one, which is necessary for the explanation for easy understanding. Illustrations other than the members are omitted as appropriate.
In order to facilitate the understanding of the following explanations, in the drawings, the front-back direction is the X-axis direction, the left-right direction is the Y-axis direction, and the up-down direction is the Z-axis direction.

（１）画像形成装置の全体構成及び動作
図１は本実施形態に係る画像形成装置１の内部構成を示す断面模式図である。
以下、図面を参照しながら、画像形成装置１の全体構成及び動作を説明する。 (1) Overall Configuration and Operation of the Image Forming Device FIG. 1 is a schematic cross-sectional view showing the internal configuration of the image forming apparatus 1 according to the present embodiment.
Hereinafter, the overall configuration and operation of the image forming apparatus 1 will be described with reference to the drawings.

（１．１）画像形成装置の全体構成
画像形成装置１は、画像形成部１０と、画像形成部１０の底部に装着された給紙装置２０と、操作表示部３０と、画像処理部４０と、を備えて構成されている。 (1.1) Overall Configuration of Image Forming Device The image forming apparatus 1 includes an image forming unit 10, a paper feeding device 20 mounted on the bottom of the image forming unit 10, an operation display unit 30, and an image processing unit 40. , Is configured.

画像形成部１０は、枠体構造の一例としての装置フレームの内部に、システム制御装置１１、露光装置ＬＨ、感光体ユニット１３、現像装置１４、転写装置１５、用紙搬送装置１６、定着装置１７、を備えて構成され、画像処理部４０から受け取った画像情報を給紙装置２０から送り込まれた用紙Ｐ上にトナー像として形成する。 The image forming unit 10 has a system control device 11, an exposure device LH, a photoconductor unit 13, a developing device 14, a transfer device 15, a paper transport device 16, and a fixing device 17 inside a device frame as an example of a frame structure. The image information received from the image processing unit 40 is formed as a toner image on the paper P fed from the paper feeding device 20.

画像形成部１０の底部には、用紙トレイ２１、２２を有する給紙装置２０が設けられ、更に給紙装置２０の下方には、上下方向に多段（本実施形態においては２段）に配置され、用紙Ｐを収容する用紙トレイＴ１、Ｔ２からなるトレイモジュールＴＭが接続されて画像形成部１０に対する用紙供給を行う。
すなわち、種類（例えば、材質や厚さ、用紙サイズ、紙目）の異なる用紙を収容する複数のトレイを備えており、これら複数のトレイのいずれか一つから繰り出した用紙を画像形成部１０に対して供給するように構成されている。 A paper feeding device 20 having paper trays 21 and 22 is provided at the bottom of the image forming unit 10, and is further arranged in multiple stages (two stages in this embodiment) in the vertical direction below the paper feeding device 20. , A tray module TM including paper trays T1 and T2 for accommodating the paper P is connected to supply paper to the image forming unit 10.
That is, a plurality of trays for accommodating papers of different types (for example, material, thickness, paper size, paper grain) are provided, and paper fed from any one of these plurality of trays is used in the image forming unit 10. It is configured to supply to.

操作表示部３０は、いわゆるユーザインタフェースに相当するもので、具体的には液晶表示パネル、各種操作ボタン、タッチパネル等を組み合わせて構成され各種の設定や指示の入力及び情報表示に用いられる。
画像処理部４０は、外部機器から送信された印刷情報から画像データを生成する。 The operation display unit 30 corresponds to a so-called user interface, and is specifically configured by combining a liquid crystal display panel, various operation buttons, a touch panel, and the like, and is used for inputting various settings and instructions and displaying information.
The image processing unit 40 generates image data from print information transmitted from an external device.

（１．２）画像形成部１０の構成及び動作
このような構成の画像形成装置１では、画像形成のタイミングに合わせて給紙装置２０又はトレイモジュールＴＭのうち、印刷ジョブで印刷の１枚毎に指定されたトレイから繰り出された用紙Ｐが画像形成部１０へ送り込まれる。 (1.2) Configuration and Operation of Image Forming Unit 10 In the image forming apparatus 1 having such a configuration, each sheet of the paper feeding device 20 or the tray module TM to be printed by the print job is set according to the timing of image formation. The paper P unwound from the tray designated in 1 is fed to the image forming unit 10.

感光体ユニット１３は、給紙装置２０の上方（Ｚ方向）に、それぞれが並列して設けられ、回転駆動する感光体ドラム３１を備えている。露光装置ＬＨにより静電潜像が形成されたそれぞれの感光体ドラム３１上には、それぞれの現像装置１４によってイエロー（Ｙ）、マゼンタ（Ｍ）、シアン（Ｃ）、黒（Ｋ）のトナー像が形成される。 The photoconductor unit 13 is provided above the paper feed device 20 (in the Z direction) in parallel, and includes a photoconductor drum 31 that is rotationally driven. Yellow (Y), magenta (M), cyan (C), and black (K) toner images are formed by the respective developing devices 14 on the respective photoconductor drums 31 on which the electrostatic latent image is formed by the exposure device LH. Is formed.

転写装置１５は、各感光体ユニット１３の感光体ドラム３１上に形成された各色トナー像が多重転写される像保持体としての中間転写ベルト５１、各感光体ユニット１３にて形成された各色トナー像を中間転写ベルト５１に順次転写（一次転写）する一次転写ローラ５２を備えている。 The transfer device 15 includes an intermediate transfer belt 51 as an image holder on which each color toner image formed on the photoconductor drum 31 of each photoconductor unit 13 is multiplex-transferred, and each color toner formed by each photoconductor unit 13. A primary transfer roller 52 for sequentially transferring (primary transfer) the image to the intermediate transfer belt 51 is provided.

用紙搬送装置１６は、給紙装置２０から繰り出された用紙Ｐの姿勢を補正して二次転写のタイミングに合わせて用紙Ｐを二次転写部ＴＲへ送り込むレジストローラ対２４の従動ローラ２４ｂと、中間転写ベルト５１上に重畳して転写された各色トナー像を記録媒体である用紙Ｐに一括転写（二次転写）する二次転写ローラ６２とを備えている。また、転写されたトナー像が保持された用紙Ｐは搬送ガイド６６を介して定着装置１７の定着ニップ部ＮＦへ案内される。 The paper transport device 16 includes a driven roller 24b of a register roller pair 24 that corrects the posture of the paper P fed from the paper feed device 20 and feeds the paper P to the secondary transfer unit TR in accordance with the timing of the secondary transfer. It is provided with a secondary transfer roller 62 for batch transfer (secondary transfer) of each color toner image superimposed and transferred on the intermediate transfer belt 51 onto paper P as a recording medium. Further, the paper P on which the transferred toner image is held is guided to the fixing nip portion NF of the fixing device 17 via the transport guide 66.

各感光体ユニット１３の感光体ドラム３１上に形成された各色トナー像は、システム制御装置１１により制御される電源装置から所定の転写電圧が印加された一次転写ローラ５２により中間転写ベルト５１上に順次静電転写（一次転写）され、各色トナーが重畳された重畳トナー像が形成される。 Each color toner image formed on the photoconductor drum 31 of each photoconductor unit 13 is placed on the intermediate transfer belt 51 by a primary transfer roller 52 to which a predetermined transfer voltage is applied from a power supply device controlled by the system control device 11. Sequential electrostatic transfer (primary transfer) is performed to form a superimposed toner image on which each color toner is superimposed.

中間転写ベルト５１上の重畳トナー像は、中間転写ベルト５１の移動に伴って二次転写部ＴＲに搬送される。重畳トナー像が二次転写部ＴＲに搬送されると、そのタイミングに合わせてレジストローラ対２４から用紙Ｐが二次転写部ＴＲに供給される。
そして、二次転写ローラ６２には、システム制御装置１１により制御される電源装置から所定の転写電圧が印加され、レジストローラ対２４から送り出された用紙Ｐに中間転写ベルト５１上の多重トナー像が一括転写される。 The superimposed toner image on the intermediate transfer belt 51 is conveyed to the secondary transfer unit TR as the intermediate transfer belt 51 moves. When the superimposed toner image is conveyed to the secondary transfer unit TR, the paper P is supplied to the secondary transfer unit TR from the resist roller pair 24 at the timing.
A predetermined transfer voltage is applied to the secondary transfer roller 62 from the power supply device controlled by the system control device 11, and the multiple toner image on the intermediate transfer belt 51 is displayed on the paper P sent out from the resist roller pair 24. It is transferred all at once.

定着装置１７は、加熱モジュール７１と加圧モジュール７２を有し、加熱モジュール７１と加圧モジュール７２の圧接領域によって定着ニップ部ＮＦ（定着領域）が形成される。二次転写部ＴＲにおいてトナー像が転写された用紙Ｐは、トナー像が未定着の状態で搬送ガイド６６を経由して定着装置１７に搬送される。定着装置１７に搬送された用紙Ｐは、一対の加熱モジュール７１と加圧モジュール７２により、加熱と圧着の作用でトナー像が定着される。 The fixing device 17 has a heating module 71 and a pressure module 72, and a fixing nip portion NF (fixing region) is formed by a pressure contact region between the heating module 71 and the pressure module 72. The paper P on which the toner image is transferred in the secondary transfer unit TR is conveyed to the fixing device 17 via the conveying guide 66 in a state where the toner image is not fixed. The toner image of the paper P conveyed to the fixing device 17 is fixed by the action of heating and crimping by the pair of heating modules 71 and the pressure module 72.

定着トナー像が形成された用紙Ｐは、切替ゲートＧ１にガイドされ、第１排出ローラ対７３から画像形成装置１上面の排紙トレイ部ＴＲ１に排出・収容される。また、両面印刷のために反転したり、画像記録面を上側にして排出する場合は、切替ゲートＧ１で搬送方向が切り替えられる。 The paper P on which the fixing toner image is formed is guided by the switching gate G1 and is discharged and stored in the paper ejection tray portion TR1 on the upper surface of the image forming apparatus 1 from the first ejection roller pair 73. Further, in the case of reversing for double-sided printing or discharging with the image recording surface facing upward, the transport direction is switched by the switching gate G1.

（２）枠体構造
図２は枠体構造１００の外観斜視図、図３は連結部材１３０の突き当て部１３２と締結部１３３の一例を示す斜視図、図４は側板１１０、１２０と連結部材１３０との連結を示す図であり、（ａ）は横断面模式図、（ｂ）は縦断面模式図、図５は連結部材１３０の突き当て部１３２と締結部１３３の配置を示す図である。 (2) Frame structure FIG. 2 is an external perspective view of the frame structure 100, FIG. 3 is a perspective view showing an example of an abutting portion 132 and a fastening portion 133 of the connecting member 130, and FIG. 4 is a side plate 110, 120 and a connecting member. It is a figure which shows the connection with 130, (a) is a schematic cross-sectional view, (b) is a vertical sectional view, and FIG. ..

（２．１）枠体構造の全体構成
本実施例に係る画像形成装置１が有する枠体構造１００は、図２に示すように、対向する一対の側板１１０、１２０と、側板１１０、１２０間に配置されて側板１１０、１２０間の距離を画定する連結部材１３０とを有している。これら側板１１０、１２０及び連結部材１３０は、厚さ０．６ｍｍ～１．６ｍｍの金属製の板材をプレス加工により打ち抜き、曲げ加工して形成されている。 (2.1) Overall Structure of Frame Structure As shown in FIG. 2, the frame structure 100 of the image forming apparatus 1 according to the present embodiment has a pair of side plates 110 and 120 facing each other and between the side plates 110 and 120. It has a connecting member 130 which is arranged in and defines a distance between the side plates 110 and 120. These side plates 110 and 120 and the connecting member 130 are formed by punching and bending a metal plate having a thickness of 0.6 mm to 1.6 mm by press working.

側板１１０、１２０は互いに対向して平行に配置されており、これら側板１１０、１２０間に連結部材１３０が配置されて、側板１１０、１２０の内面１１０ａ、１２０ａに突き当て部１３２で突き当てられて側板１１０、１２０間の距離Ｗを画定した状態で、締結部１３３が側板１１０、１２０に設けられた被締結部１１１、１２１とネジ又は溶接又は接着材で側板１１０、１２０を引き込むようにして締結されている。 The side plates 110 and 120 are arranged in parallel facing each other, and a connecting member 130 is arranged between the side plates 110 and 120 so as to be abutted against the inner surfaces 110a and 120a of the side plates 110 and 120 by the abutting portion 132. With the distance W between the side plates 110 and 120 defined, the fastening portion 133 is fastened to the fastened portions 111 and 121 provided on the side plates 110 and 120 by pulling in the side plates 110 and 120 with screws, welding or an adhesive. Has been done.

このように構成される枠体構造１００の側板１１０、１２０には、画像形成部１０を構成する転写装置１５、用紙搬送装置１６、定着装置１７等が組み付けられる。そのために、側板１１０、１２０が連結部材１２０で締結される際に側板１１０、１２０が変形した場合には、転写装置１５、用紙搬送装置１６、定着装置１７等の位置ずれが発生する虞があった。 The transfer device 15, the paper transfer device 16, the fixing device 17, and the like that form the image forming unit 10 are assembled to the side plates 110 and 120 of the frame structure 100 configured in this way. Therefore, if the side plates 110 and 120 are deformed when the side plates 110 and 120 are fastened by the connecting member 120, the transfer device 15, the paper transfer device 16, the fixing device 17, and the like may be displaced from each other. rice field.

（２．２）連結部材
連結部材１３０は、側板１１０、１２０の内面１１０ａ、１２０ａに当接する折り曲げ部１３１を有している。また、連結部材１２０は、側板１１０、１２０の内面１１０ａ、１２０ａに当接する折り曲げ部１３１の外面１３１ａから突出する突き当て部１３２を有している。さらに、連結部材１２０は、側板１１０、１２０の内面１１０ａ、１２０ａに設けられた被締結部１１１、１２１に当接した状態で締結される締結部１３３を有している。 (2.2) Connecting member The connecting member 130 has a bent portion 131 that abuts on the inner surfaces 110a and 120a of the side plates 110 and 120. Further, the connecting member 120 has an abutting portion 132 protruding from the outer surface 131a of the bent portion 131 that abuts on the inner surfaces 110a and 120a of the side plates 110 and 120. Further, the connecting member 120 has a fastening portion 133 that is fastened in contact with the fastened portions 111 and 121 provided on the inner surfaces 110a and 120a of the side plates 110 and 120.

図４に示すように、突き当て部１３２は、折り曲げ部１３１の外面１３１ａから０．３ｍｍ～０．４５ｍｍ突出して側板１１０、１２０の内面１１０ａ、１２０ａに当接する。また、締結部１３３は、折り曲げ部１３１の外面１３１ａと同一面となるように側板１１０、１２０の内面１１０ａ、１２０ａに沿うように形成されている。そのために、側板１１０、１２０は、連結部材１３０の突き当て部１３２で側板１１０、１２０間の距離を画定した状態で、締結部１３３と被締結部１１１、１２１を連結することで締結部１３３と被締結部１１１、１２１を突き当て部１３２の突出量Ｄに相当する距離だけ撓ませて締結される。 As shown in FIG. 4, the abutting portion 132 projects from the outer surface 131a of the bent portion 131 by 0.3 mm to 0.45 mm and comes into contact with the inner surfaces 110a and 120a of the side plates 110 and 120. Further, the fastening portion 133 is formed along the inner surfaces 110a and 120a of the side plates 110 and 120 so as to be flush with the outer surface 131a of the bent portion 131. Therefore, the side plates 110 and 120 are connected to the fastening portion 133 by connecting the fastening portion 133 and the fastened portions 111 and 121 in a state where the distance between the side plates 110 and 120 is defined by the abutting portion 132 of the connecting member 130. The fastened portions 111 and 121 are bent and fastened by a distance corresponding to the protrusion amount D of the abutting portion 132.

このように側板１１０、１２０が連結部材１３０で連結される枠体構造１００において、図５に示すように、締結部１３３は、突き当て部１３２が側板１１０、１２０の内面１１０ａ、１２０ａに突き当てられる突き当て位置の延長線（図５中 Ａ－Ａ線参照）上に設けられている。
その結果、突き当て部１３２の近傍で締結することにより、締結部１３３が突き当て部１３２が側板１１０、１２０に突き当てられる突き当て位置の延長線上に設けられていない構成に比べて、締結部１３３と被締結部１１１、１２１の締結力に伴う側板１１０、１２０の連結部材１３０側への引き込みが少なく側板１１０、１２０の変形を抑制することができる。 In the frame structure 100 in which the side plates 110 and 120 are connected by the connecting member 130 in this way, as shown in FIG. 5, the abutting portion 132 abuts the abutting portion 132 against the inner surfaces 110a and 120a of the side plates 110 and 120. It is provided on an extension line of the abutting position (see lines AA in FIG. 5).
As a result, by fastening in the vicinity of the abutting portion 132, the fastening portion 133 is not provided on the extension line of the abutting position where the abutting portion 132 is abutted against the side plates 110 and 120. Deformation of the side plates 110 and 120 can be suppressed with less pulling of the side plates 110 and 120 toward the connecting member 130 side due to the fastening force between 133 and the fastened portions 111 and 121.

図５に示すように、締結部１３３は、連結部材１３０の下方に向かって凸形状の絞り部１３４から折り曲げ部１３１に沿って曲げ部１３３ａで折り曲げて立設されている。これにより、締結部１３３が曲げ部１３３ａを起点にして側板１１０、１２０の被締結部１１１、１２１が設けられた内面１１０ａ、１２０ａに沿って倣うように締結され側板１１０、１２０の変形を抑制することができる。 As shown in FIG. 5, the fastening portion 133 is erected by being bent downward from the squeezed portion 134 having a convex shape toward the lower side of the connecting member 130 by the bent portion 133a along the bent portion 131. As a result, the fastening portion 133 is fastened so as to follow the inner surfaces 110a and 120a provided with the fastened portions 111 and 121 of the side plates 110 and 120 starting from the bent portion 133a, and the deformation of the side plates 110 and 120 is suppressed. be able to.

「変形例１」
図６は変形例１に係る突き当て部１３２と締結部１３３Ａを示す斜視図である。
図６に示すように、締結部１３３Ａは、折り曲げ部１３１に沿って両側に切り欠き部１３５、１３５を有して先端部１３３Ａａが自由端となる板状に形成してもよい。これにより、締結部１３３の基端部１３３Ａｂを起点として側板１１０、１２０の被締結部１１１、１２１が設けられた内面１１０ａ、１２０ａに沿って倣うように締結され側板１１０、１２０の変形を抑制することができる。 "Modification example 1"
FIG. 6 is a perspective view showing the abutting portion 132 and the fastening portion 133A according to the modified example 1.
As shown in FIG. 6, the fastening portion 133A may be formed in a plate shape having notches 135 and 135 on both sides along the bent portion 131 and having the tip portion 133Aa as a free end. As a result, the side plates 110 and 120 are fastened so as to follow the inner surfaces 110a and 120a provided with the fastened portions 111 and 121 starting from the base end portion 133Ab of the fastening portion 133, and the deformation of the side plates 110 and 120 is suppressed. be able to.

図７は側板１１０、１２０の被締結部１１１、１２１の強度向上のために形成された絞り部１１２、１２２を示す図であり、（ａ）は側板１１０、１２０の裏面１１０ｂ、１２０ｂを示す背面図、（ｂ）は横断面模式図、（ｃ）は縦断面模式図である。
図７に示すように、側板１１０、１２０の被締結部１１１、１２１には、連結部材１３０の締結部１３３が接触する内面１１０ａ、１２０ａの裏面１１０ｂ、１２０ｂに凸形状の絞り部１１２、１２２が被締結部１１１、１２１を中心に放射状に形成されている。凸形状高さは、特に限定されないが、通常１ｍｍ～２ｍｍ程度あれば十分な補強効果を発揮する。
これにより、側板１１０、１２０の被締結部１１１、１２１の強度を向上させ、締結部１３３と被締結部１１１、１２１の締結力に伴う側板１１０、１２０の変形を抑制することができる。 FIG. 7 is a diagram showing the throttle portions 112 and 122 formed to improve the strength of the fastened portions 111 and 121 of the side plates 110 and 120, and FIG. 7A is a back surface showing the back surfaces 110b and 120b of the side plates 110 and 120. The figure, (b) is a schematic cross-sectional view, and (c) is a schematic vertical cross-sectional view.
As shown in FIG. 7, the fastened portions 111 and 121 of the side plates 110 and 120 have convex throttle portions 112 and 122 on the back surfaces 110b and 120b of the inner surfaces 110a and 120a to which the fastening portions 133 of the connecting member 130 come into contact. It is formed radially around the fastened portions 111 and 121. The height of the convex shape is not particularly limited, but usually about 1 mm to 2 mm is sufficient to exert a reinforcing effect.
As a result, the strength of the fastened portions 111 and 121 of the side plates 110 and 120 can be improved, and the deformation of the side plates 110 and 120 due to the fastening force between the fastened portion 133 and the fastened portions 111 and 121 can be suppressed.

「変形例２」
図８は変形例２に係る側板１１０、１２０の被締結部１１１、１２１の強度向上のために形成された絞り部１１３、１２３を示す図であり、（ａ）は横断面模式図、（ｂ）は縦断面模式図である。
図８（ａ）に示すように、側板１１０、１２０の被締結部１１１、１２１には、連結部材１３０の締結部１３３が接触する内面１１０ａ、１２０ａに凸形状の絞り部１１３、１２３を形成してもよい。凸形状高さは、特に限定されないが、通常１ｍｍ～２ｍｍ程度あれば十分な補強効果を発揮する。連結部材１３０の締結部１３３は、図８（ｂ）に示すように、側板１１０、１２０の被締結部１１１、１２１に形成された凸形状の絞り部１１３、１２３に合わせて凹形状に形成される。
これにより、側板１１０、１２０の被締結部１１１、１２１の強度を向上させ、締結部１３３と被締結部１１１、１２１の締結力に伴う側板１１０、１２０の変形を抑制することができる。 "Modification 2"
FIG. 8 is a diagram showing the throttle portions 113 and 123 formed for improving the strength of the fastened portions 111 and 121 of the side plates 110 and 120 according to the modified example 2, in which FIG. 8A is a schematic cross-sectional view, (b). ) Is a schematic vertical sectional view.
As shown in FIG. 8A, convex throttle portions 113 and 123 are formed on the inner surfaces 110a and 120a to which the fastening portions 133 of the connecting member 130 come into contact with the fastened portions 111 and 121 of the side plates 110 and 120. You may. The height of the convex shape is not particularly limited, but usually about 1 mm to 2 mm is sufficient to exert a reinforcing effect. As shown in FIG. 8B, the fastening portion 133 of the connecting member 130 is formed in a concave shape in accordance with the convex drawing portions 113 and 123 formed in the fastened portions 111 and 121 of the side plates 110 and 120. To.
As a result, the strength of the fastened portions 111 and 121 of the side plates 110 and 120 can be improved, and the deformation of the side plates 110 and 120 due to the fastening force between the fastened portion 133 and the fastened portions 111 and 121 can be suppressed.

「変形例３」
図９は側板１１０、１２０と変形例３に係る連結部材１３０Ｂとの連結を示す図であり、（ａ）は横断面模式図、（ｂ）は縦断面模式図である。
図９には、変形例３に係る連結部材１３０Ｂと側板１１０、１２０との連結を示す。連結部材１３０Ｂは、側板１１０、１２０の内面１１０ａ、１２０ａと接触したときに先端部１３３Ｂａが先に接触するように鈍角に折り曲げて形成されている。
具体的には、締結部１３３Ｂは、図９に示すように、曲げ部１３３Ｂｂを起点に先端部１３３Ｂａが連結部材１３０Ｂの折り曲げ部１３１よりも突き当て部１３２の突出量Ｄの範囲内で外側になるように鈍角に折り曲げられている。 "Modification 3"
9A and 9B are views showing the connection between the side plates 110 and 120 and the connecting member 130B according to the modified example 3, where FIG. 9A is a schematic cross-sectional view and FIG. 9B is a schematic vertical cross-sectional view.
FIG. 9 shows the connection between the connecting member 130B and the side plates 110 and 120 according to the modified example 3. The connecting member 130B is formed by being bent at an obtuse angle so that the tip portion 133Ba comes into contact with the inner surfaces 110a and 120a of the side plates 110 and 120 first.
Specifically, as shown in FIG. 9, in the fastening portion 133B, the tip portion 133Ba starts from the bent portion 133Bb and is outward from the bent portion 131 of the connecting member 130B within the range of the protrusion amount D of the abutting portion 132. It is bent at an obtuse angle so that it becomes.

このように形成された締結部１３３Ｂを有する連結部材１３０Ｂで側板１１０、１２０の被締結部１１１、１２１と締結する場合、締結部１３３Ｂは、先端部１３３Ｂａが側板１１０、１２０の内面１１０ａ、１２０ａと先に接触する。そして、締結部１３３Ｂは、締結部１３３Ｂと被締結部１１１、１２１の締結力で側板１１０、１２０の内面１１０ａ、１２０ａに沿うように変形して締結され側板１１０、１２０の変形を抑制することができる。 When the connecting member 130B having the fastening portion 133B formed in this way is fastened to the fastened portions 111 and 121 of the side plates 110 and 120, the fastening portion 133B has the tip portion 133Ba and the inner surfaces 110a and 120a of the side plates 110 and 120. Contact first. Then, the fastening portion 133B is deformed and fastened along the inner surfaces 110a and 120a of the side plates 110 and 120 by the fastening force of the fastening portion 133B and the fastened portions 111 and 121, and the deformation of the side plates 110 and 120 can be suppressed. can.

本実施形態に係る枠体構造１００によれば、側板１１０、１２０に突き当て部１３２を突き当てて側板１１０、１２０間の距離を画定した状態で平行に連結する連結部材１３０を、突き当て部１３２の突き当て位置の延長線上で側板１１０、１２０と締結することで、側板１１０、１２０の板厚を増加させることなく側板１１０、１２０の変形を抑制することができる。
その結果、側板１１０、１２０に支持される画像形成部１０の画像形成部材である転写装置１５、用紙搬送装置１６、定着装置１７等の位置ずれを抑制して、カラー画像の位置合わせ不良、用紙搬送の斜行、紙しわ、転写不良等の画像不良の発生を抑制することができる。 According to the frame structure 100 according to the present embodiment, the abutting portion 130 is connected in parallel by abutting the abutting portion 132 against the side plates 110 and 120 and defining the distance between the side plates 110 and 120. By fastening to the side plates 110 and 120 on the extension line of the abutting position of 132, the deformation of the side plates 110 and 120 can be suppressed without increasing the plate thickness of the side plates 110 and 120.
As a result, misalignment of the transfer device 15, the paper transfer device 16, the fixing device 17, etc., which are image forming members of the image forming unit 10 supported by the side plates 110 and 120, is suppressed, and the color image is misaligned and the paper is misaligned. It is possible to suppress the occurrence of image defects such as skewed transport, paper wrinkles, and transfer defects.

１・・・画像形成装置
１０・・・画像形成部
１１・・・システム制御装置
１２・・・露光装置
１３・・・感光体ユニット
１４・・・現像装置
１５・・・転写装置
１６・・・用紙搬送装置
１７・・・定着装置
２０・・・給紙装置
３０・・・操作表示部
４０・・・画像処理部
１００・・・枠体構造
１１０、１２０・・・側板
１１０ａ、１２０ａ・・・内面
１１１、１２１・・・被締結部
１３０、１３０Ａ、１３０Ｂ・・・締結部材
１３１・・・折り曲げ部
１３２・・・突き当て部
１３３、１３３Ａ、１３３Ｂ・・・締結部 1 ... Image forming device 10 ... Image forming unit 11 ... System control device 12 ... Exposure device 13 ... Photoconductor unit 14 ... Developing device 15 ... Transfer device 16 ... Paper transport device 17 ... Fixing device 20 ... Feeding device 30 ... Operation display unit 40 ... Image processing unit 100 ... Frame structure 110, 120 ... Side plates 110a, 120a ... Inner surface 111, 121 ... Fastened portion 130, 130A, 130B ... Fastening member 131 ... Bent portion 132 ... Butting portion 133, 133A, 133B ... Fastening portion

Claims (5)

対向する一対の側板と、
前記側板間に配置されて前記側板間の距離を画定する連結部材と、を備え、
前記連結部材は、前記側板の被締結部に固定される締結部、前記側板に突き当てられる突き当て部、ならびに、第１の折り曲げ線および第２の折り曲げ線を含む少なくとも２つの折り曲げ線によって連結される前記側板間を結ぶ方向に延びる連結部および前記側板の内面に接触する折り曲げ部を有し、
前記第１の折り曲げ線と前記第２の折り曲げ線は逆方向に折り曲げられ前記連結部と前記折り曲げ部との間に凸形状の凸部が形成され、
前記折り曲げ部は、前記凸部から前記連結部側に延び、前記連結部を延長した面と交差する部位を備え、
前記締結部が前記突き当て部が前記側板に突き当てられる突き当て位置の延長線上、かつ、前記折り曲げ部の前記連結部を延長面上に設けられている、
ことを特徴とする枠体構造。 A pair of facing side plates and
A connecting member arranged between the side plates and defining a distance between the side plates is provided.
The connecting member is connected by a fastening portion fixed to a fastened portion of the side plate, an abutting portion abutted against the side plate , and at least two bending lines including a first bending line and a second bending line. It has a connecting portion extending in a direction connecting the side plates and a bent portion in contact with the inner surface of the side plates .
The first bending line and the second bending line are bent in opposite directions to form a convex convex portion between the connecting portion and the bent portion.
The bent portion includes a portion extending from the convex portion toward the connecting portion and intersecting the surface extending the connecting portion.
The fastening portion is provided on an extension line of the abutting position where the abutting portion is abutted against the side plate , and the connecting portion of the bent portion is provided on the extension surface .
The frame structure is characterized by that. 対向する一対の側板と、
前記側板間に配置されて前記側板間の距離を画定する連結部材、を備え、
前記連結部材は、前記側板の被締結部に固定される締結部、と前記側板に突き当てられる突き当て部、ならびに、折り曲げ線によって連結される前記側板間を結ぶ方向に延びる連結部および前記側板の内面に接触する折り曲げ部を有し、
前記折り曲げ部は、前記折り曲げ線を跨ぐ切り欠き部によって前記連結部を延長した面と交差する部位を備え、
前記締結部が前記突き当て部が前記側板に突き当てられる突き当て位置の延長線上、かつ、前記折り曲げ部の前記連結部を延長面上に設けられている、
ことを特徴とする枠体構造。 A pair of facing side plates and
A connecting member , which is arranged between the side plates and defines a distance between the side plates, is provided.
The connecting member includes a fastening portion fixed to a fastened portion of the side plate, an abutting portion abutted against the side plate , and a connecting portion extending in a direction connecting the side plates connected by a bending line and the side plate. Has a bent part that comes into contact with the inner surface of
The bent portion includes a portion that intersects with a surface extending the connecting portion by a notch portion that straddles the bending line.
The fastening portion is provided on an extension line of the abutting position where the abutting portion is abutted against the side plate , and the connecting portion of the bent portion is provided on the extension surface .
The frame structure is characterized by that. 前記突き当て部は、前記折り曲げ部の前記側板と接触する側の面から突出して形成され、
前記被締結部は、前記連結部材が接触する側の面に形成された凸形状の絞り部に形成され、
前記凸形状の絞り部の凸形状高さは、前記突き当て部の前記側板と接触する側の面から突出量よりも大きい
ことを特徴とする請求項１または２に記載の枠体構造。 The abutting portion is formed so as to project from the surface of the bent portion on the side in contact with the side plate .
The fastened portion is formed in a convex throttle portion formed on the surface on the side where the connecting member comes into contact.
The convex height of the convex squeezed portion is larger than the amount of protrusion from the surface of the abutting portion on the side in contact with the side plate.
The frame structure according to claim 1 or 2 , wherein the frame structure is characterized in that. 前記連結部材は板材で構成され、 The connecting member is made of a plate material.
前記凸形状の絞り部の凸形状高さは、前記連結部材の板厚よりも大きい The convex height of the convex throttle portion is larger than the plate thickness of the connecting member.
ことを特徴とする請求項３に記載の枠体構造。 The frame structure according to claim 3, wherein the frame structure is characterized by the above. 請求項１ないし４のいずれか１項に記載の枠体構造を備えた、
ことを特徴とする画像形成装置。
The frame structure according to any one of claims 1 to 4 is provided.
An image forming apparatus characterized in that.
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JP2014177996A (en) 2013-03-14 2014-09-25 Canon Inc Fastening part structure and processing method for screw hole burring part
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