JP2006243203A - Image forming apparatus - Google Patents

Image forming apparatus Download PDF

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Publication number
JP2006243203A
JP2006243203A JP2005056821A JP2005056821A JP2006243203A JP 2006243203 A JP2006243203 A JP 2006243203A JP 2005056821 A JP2005056821 A JP 2005056821A JP 2005056821 A JP2005056821 A JP 2005056821A JP 2006243203 A JP2006243203 A JP 2006243203A
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screw member
image reading
female screw
reading device
male screw
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Japanese (ja)
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Satoru Washida
悟 鷲田
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Murata Machinery Ltd
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Murata Machinery Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To easily perform level adjustment and fixation of an image reader by rotating an internal thread member of a stationary plate. <P>SOLUTION: An external thread member 1a for performing height adjustment of the image reader is mounted on a chassis 4 of the image reader, and the internal thread member 2 to be screwed to the external thread member 1a is freely rotatably mounted on the stationary plate 5 to which the image reader is fixed. A user can simultaneously and easily carry out the level adjustment and fixation of the image reader by rotating the internal thread member 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、画像読取装置の高さ調整およびその固定を容易に行うことができるねじ部材を有する画像形成装置に関する。   The present invention relates to an image forming apparatus having a screw member capable of easily adjusting the height of an image reading apparatus and fixing the image reading apparatus.

画像読取装置は、プラテンガラスに載置された静止原稿に対してシャーシ内に設けられたスキャナを走査させることにより、若しくは、自動給紙装置から給紙された原稿をスキャナ上で搬送させることにより画像を読み取る装置であり、これら画像読取装置のシャーシ、スキャナ、自動給紙装置、原稿カバーなどは一体として読み取りユニットとして構成されている。上記スキャナはシャーシ内において、摺動自在に支持されており、モータ駆動によりシャーシ内を往復摺動することにより、シャーシ上方に配置されたプラテンガラス上の原稿を読み取る構成である。よって、シャーシに歪や変形が発生してしまうと、原稿の読み取り精度が著しく低下してしまうことがある。このため、画像読取装置を固定する際に、その原稿載置読取面を基準面(例えば、床面)に対し水平に取り付けること、および不必要な応力を前記シャーシに付加しないこと、が重要となる。   The image reading apparatus scans a stationary document placed on a platen glass with a scanner provided in the chassis, or conveys a document fed from an automatic paper feeder on the scanner. An image reading apparatus, and a chassis, a scanner, an automatic paper feeder, a document cover, and the like of these image reading apparatuses are integrally configured as a reading unit. The scanner is slidably supported in the chassis, and is configured to read a document on a platen glass disposed above the chassis by reciprocatingly sliding in the chassis by driving a motor. Therefore, if the chassis is distorted or deformed, the document reading accuracy may be significantly reduced. For this reason, when fixing the image reading apparatus, it is important that the document placement reading surface is mounted horizontally with respect to a reference surface (for example, the floor surface) and that unnecessary stress is not applied to the chassis. Become.

例えば、画像読取装置専用の架台の足部に高さ調整機能を付加し、その架台を直接床面に載置する発明が開示されている(例えば、特許文献1参照)。
特開平10−51579
For example, an invention has been disclosed in which a height adjustment function is added to a foot portion of a pedestal dedicated to an image reading apparatus and the pedestal is directly placed on a floor surface (see, for example, Patent Document 1).
JP-A-10-51579

従来のデジタル複写機は画像を形成するプリンタ装置の上に画像読取装置を取り付けしたものが主流である。具体的には、プリンタ装置の上面であり、プリンタ装置と一体的に形成された固定板に画像読取装置を載置し、その画像読取装置をボルトなどの固定具により固定する。このように固定することにより、画像読取装置を固定するための専用の架台を別途準備する必要が無く、コストを削減することができる。また、画像読取装置はユーザが原稿を読み取らすのに適した高さに固定する必要が有るが、プリンタ装置の上部に画像読取装置を固定することにより、ユーザが作業するのに適した高さを得ることが出来る。   Conventional digital copiers are mainly those in which an image reading device is mounted on a printer device for forming an image. Specifically, the image reading device is placed on a fixing plate formed integrally with the printer device on the upper surface of the printer device, and the image reading device is fixed by a fixing tool such as a bolt. By fixing in this way, it is not necessary to separately prepare a dedicated stand for fixing the image reading apparatus, and the cost can be reduced. In addition, the image reading apparatus needs to be fixed at a height suitable for the user to read the document. However, by fixing the image reading apparatus on the upper part of the printer device, the height suitable for the user to work. Can be obtained.

ところが、画像読取装置の底面を構成するシャーシ、および前記固定板は、その加工時のひずみなどの要因により、平滑な面を有していないことがある。このように互いに平滑でない面をボルトなどの固定具で固定してしまうと、前記画像読取装置のシャーシおよびプリンタ装置の固定板が変形してしまうことがある。また、両者の面での接触を避けるために、画像形成装置の底面の各コーナー部に支持部となる凸部を設けた場合でも、この凸部が同じ高さでなければ、画像読取装置がガタ付いてしまう不具合が発生する。さらに、原稿読取時の読み取り精度を向上するためには、画像読取装置の原稿載置読取面を基準面(例えば、床面)に対し水平に取り付ける調整(以下「水平度調整」という)が必要である。   However, the chassis constituting the bottom surface of the image reading apparatus and the fixing plate may not have a smooth surface due to factors such as distortion during processing. If the surfaces that are not smooth with each other are fixed with a fixing tool such as a bolt, the chassis of the image reading apparatus and the fixing plate of the printer apparatus may be deformed. Further, in order to avoid contact on both surfaces, even when a convex portion serving as a support portion is provided at each corner portion on the bottom surface of the image forming apparatus, if the convex portion is not the same height, the image reading apparatus There will be a bug that rattles. Furthermore, in order to improve the reading accuracy during document reading, an adjustment (hereinafter referred to as “leveling adjustment”) is required in which the document placement reading surface of the image reading apparatus is mounted horizontally with respect to a reference surface (for example, the floor surface). It is.

本発明は以上のような課題を解決すべく、次のような手段を用いるものである。   In order to solve the above problems, the present invention uses the following means.

本発明は、載置された原稿の読み取りを行う画像読取装置と、前記画像読取装置を固定するための固定板と、を有する画像形成装置において、前記画像読取装置のシャーシには画像読取装置を固定するための雄ねじ部材が取り付けられ、前記画像読取装置が固定される固定板には前記雄ねじ部材と螺合する雌ねじ部材が回転自在に取り付けられている。   The present invention provides an image forming apparatus having an image reading apparatus for reading a placed document and a fixing plate for fixing the image reading apparatus, wherein the image reading apparatus has an image reading apparatus as a chassis. A male screw member for fixing is attached, and a female screw member screwed to the male screw member is rotatably attached to a fixing plate to which the image reading apparatus is fixed.

また、前記雌ねじ部材は、スナップフィットにより前記固定板に取り付けられている。   The female screw member is attached to the fixed plate by a snap fit.

また、前記雄ねじ部材および雌ねじ部材は、樹脂から成る。   The male screw member and the female screw member are made of resin.

また、前記雄ねじ部材および雌ねじ部材は、それぞれ複数個取り付けられている。   A plurality of male screw members and female screw members are respectively attached.

さらに、前記雄ねじ部材は前記雌ねじ部材との位置合わせをするための小径部を有し、前記小径部には前記雌ねじ部材との螺合状態を確認するための目印が付されている。   Further, the male screw member has a small diameter portion for positioning with the female screw member, and the small diameter portion is provided with a mark for confirming a screwed state with the female screw member.

本発明の画像形成装置によれば前記画像読取装置には画像読取装置の高さ調整を行うための雄ねじ部材が取り付けられ、前記画像読取装置が取り付けられる固定板には、前記雄ねじ部材と螺合する雌ねじ部材が回転自在に取り付けられているので、ユーザは雌ねじ部材を回転させることによって、画像読取装置の水平度調整と、固定と、を容易に行うことが可能である。   According to the image forming apparatus of the present invention, a male screw member for adjusting the height of the image reading device is attached to the image reading device, and a fixing plate to which the image reading device is attached is screwed with the male screw member. Since the female screw member is rotatably attached, the user can easily adjust the level of the image reading device and fix the image reading device by rotating the female screw member.

本発明の画像形成装置によれば、前記雌ねじ部材は、前記固定板に対しスナップフィットにより回転自在に固定されるので、雌ねじ部材を固定板に簡単に取り付けることができる。   According to the image forming apparatus of the present invention, since the female screw member is rotatably fixed to the fixing plate by snap fit, the female screw member can be easily attached to the fixing plate.

本発明の画像形成装置によれば、前記雄ねじ部材および雌ねじ部材は、樹脂から成るので、前記雌ねじ部材を回転させるときの摺動性に優れている。また、画像読取装置およびプリンタ装置のどちらか一方で漏電が発生した場合でも、この部分からの他方への通電を遮断することが可能である。さらに、作業者の調整ミスで各ねじ部材に不必要な応力がかけられたときでも、樹脂性の各ねじ部材が撓むことにより、その応力を緩和しシャーシが変形することを防ぐことができる。   According to the image forming apparatus of the present invention, since the male screw member and the female screw member are made of resin, they are excellent in slidability when the female screw member is rotated. Further, even when leakage occurs in either the image reading apparatus or the printer apparatus, it is possible to cut off the energization from this part to the other. Furthermore, even when an unnecessary stress is applied to each screw member due to an operator's misadjustment, the resinous screw member can be bent to reduce the stress and prevent the chassis from being deformed. .

本発明の画像形成装置によれば、前記雄ねじ部材および雌ねじ部材は、それぞれ複数個取り付けられているので、画像読取装置の水平度調整の選択の幅が広がる。   According to the image forming apparatus of the present invention, since a plurality of the male screw members and the female screw members are respectively attached, the range of selection of the level adjustment of the image reading device is widened.

本発明の画像形成装置によれば、前記雄ねじ部材は前記雌ねじ部材との位置合わせをするための小径部を有し、前記小径部には前記雌ねじ部材との螺合状態を確認するための目印が付されているので、各雌ねじ部材に対応した各雄ねじ部材の位置合わせを容易に行うことができ、さらに画像読取装置の水平度調整と固定とを、水平機等の調整具を使用することなく容易に行うことが可能である。   According to the image forming apparatus of the present invention, the male screw member has a small-diameter portion for alignment with the female screw member, and the small-diameter portion has a mark for confirming a screwed state with the female screw member. Therefore, it is possible to easily align each male screw member corresponding to each female screw member, and use an adjustment tool such as a leveling machine to adjust and fix the level of the image reading device. And can be done easily.

以下、図面を参照して本発明の実施の第一の実施形態について説明する。図5はコピー機能、複写機能、通信機能などの複合機能を併せもつ画像形成装置6の斜視図を示す。画像形成装置6の上部には、原稿の画像を読み取る画像読取装置7が設けられており、その上面が図示しない透明ガラス板で構成されている。そのガラス板の上面に載置された原稿が画像読取装置7により読み取られる。このガラス板の上面を覆うように原稿押さえカバー8が設けられており、この原稿押さえカバー8により原稿読み取り時の原稿のずれが防止される。この原稿押さえカバー8の上面には原稿排出トレイ9が形成され、その上方には原稿トレイ10が配設されている。原稿押さえカバー8の一端部に、ADF11が配設されている。ADF11は、原稿トレイ10と原稿排出トレイ9とに隣接するように配設されており、原稿トレイ10に載置された原稿は、ADF11により自動搬送され、画像読取装置7によりデータとして読み取られ、原稿排出トレイ9へ排出される。原稿トレイ9には、原稿搬送方向と垂直な方向に可動する1対の原稿ガイド12が設けられている。また画像読取装置7の一側面にはユーザが画像の読み取りや印刷などの操作を指示するための操作パネル23が配されている。   Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a perspective view of the image forming apparatus 6 having a composite function such as a copy function, a copy function, and a communication function. An image reading device 7 that reads an image of a document is provided on the upper portion of the image forming device 6, and the upper surface thereof is constituted by a transparent glass plate (not shown). The document placed on the upper surface of the glass plate is read by the image reading device 7. A document pressing cover 8 is provided so as to cover the upper surface of the glass plate, and the document pressing cover 8 prevents the document from being displaced when the document is read. A document discharge tray 9 is formed on the upper surface of the document pressing cover 8, and a document tray 10 is disposed above the document discharge tray 9. An ADF 11 is disposed at one end of the document pressing cover 8. The ADF 11 is disposed adjacent to the document tray 10 and the document discharge tray 9. The document placed on the document tray 10 is automatically conveyed by the ADF 11 and read as data by the image reading device 7. It is discharged to the document discharge tray 9. The document tray 9 is provided with a pair of document guides 12 that are movable in a direction perpendicular to the document conveyance direction. On one side of the image reading device 7, an operation panel 23 is arranged for the user to instruct operations such as image reading and printing.

画像形成装置6の中央部には、記録紙に画像を記録するプリンタ装置20が設けられている。そして、このプリンタ装置の上部には画像読取装置7を固定するための固定板5が形成されている。また、プリンタ装置20の下部には給紙カセット22が脱着可能に配置されている。この給紙カセット22は、多数枚の記録紙をその内部に載置可能であり、載置された記録紙は最上部に載置されている記録紙から順番にプリンタ装置20に送られる。プリンタ装置20に送られた記録紙は、プリンタ装置20で所定の画像が印刷され、排紙部24へ排出される。   A printer device 20 for recording an image on a recording sheet is provided at the center of the image forming apparatus 6. A fixing plate 5 for fixing the image reading device 7 is formed on the upper portion of the printer device. A paper feed cassette 22 is detachably disposed below the printer device 20. The paper feed cassette 22 can place a large number of recording papers therein, and the recording papers that are placed are sent to the printer device 20 in order from the recording paper placed on the top. A predetermined image is printed on the recording paper sent to the printer device 20 by the printer device 20 and is discharged to the paper discharge unit 24.

図1は画像読取装置7の高さ調整および固定を行う雄ねじ部材1aおよび雌ねじ部材2である。雄ねじ部材1aは、画像読取装置7の底面を構成するシャーシ4に取り付けられるブラケット13と、シャーシ4に雄ねじ部材1aを固定する固定ねじ3が相通される孔部4と、雄ねじ切り部14が形成される円柱部26と、から成る。本実施例では孔部4は一箇所しか設けていないが、さらに十分な固定強度を得たい場合には雄ねじ部材1aに対し孔部4を複数個設けても良い。   FIG. 1 shows a male screw member 1 a and a female screw member 2 for adjusting and fixing the height of the image reading device 7. The male screw member 1 a is formed with a bracket 13 attached to the chassis 4 constituting the bottom surface of the image reading device 7, a hole portion 4 through which the fixing screw 3 for fixing the male screw member 1 a to the chassis 4 passes, and a male screw cutting portion 14. And a cylindrical portion 26. In the present embodiment, only one hole 4 is provided, but a plurality of holes 4 may be provided for the male screw member 1a in order to obtain a sufficient fixing strength.

また、雌ねじ部材2は、基部15と、内面に雌ねじ切部19を有する円筒部16と、雌ねじ部材2をプリンタ装置20の固定板5に回転自在に取り付けるためのスナップフィット17と、ユーザが雌ねじ部材2を回転させるときに指を当てるための複数の突片部18とから成る。   The female screw member 2 includes a base portion 15, a cylindrical portion 16 having a female screw cutting portion 19 on the inner surface, a snap fit 17 for rotatably mounting the female screw member 2 to the fixing plate 5 of the printer device 20, and a user's female screw. It comprises a plurality of projecting pieces 18 for applying a finger when rotating the member 2.

図2(a)は画像形成装置6と雄ねじ部材1a、および固定板5と雌ねじ部材2の取り付け状態を示す断面図である。雄ねじ部材1aは、画像読取装置7の底面を構成するシャーシ4に固定ねじ3により取り付けられる。また、雌ねじ部材2は、プリンタ装置20の上部の固定板5に設けられた孔25にその円筒部16を下方からスナップフィット17が係止するまで挿入する。このように取り付けることにより、雌ねじ部材2は固定板5に対し回転自在に取り付けられる。画像形成装置7を固定板5に固定したときに、固定板5に設けられた孔25が形成する円の中心が、シャーシ4に取り付けられた雄ねじ部材1aの円柱部26の中心軸と同一線上となるように設けられる。このように孔25の位置決めすることにより、雄ねじ部材1aと雌ねじ部材2をスムースに螺合させることが可能となる。上述した方法とは逆に、まず、孔25の位置決めを行い、それに対応した箇所に雄ねじ部材を取り付けても良い。   FIG. 2A is a cross-sectional view showing a state in which the image forming apparatus 6 and the male screw member 1a, and the fixing plate 5 and the female screw member 2 are attached. The male screw member 1 a is attached to the chassis 4 constituting the bottom surface of the image reading device 7 by the fixing screw 3. The female screw member 2 is inserted into the hole 25 provided in the fixing plate 5 at the top of the printer device 20 from below until the snap fit 17 is locked. By mounting in this way, the female screw member 2 is rotatably attached to the fixed plate 5. When the image forming apparatus 7 is fixed to the fixing plate 5, the center of the circle formed by the hole 25 provided in the fixing plate 5 is collinear with the central axis of the cylindrical portion 26 of the male screw member 1 a attached to the chassis 4. It is provided to become. By positioning the hole 25 in this manner, the male screw member 1a and the female screw member 2 can be smoothly screwed together. Contrary to the above-described method, first, the hole 25 may be positioned, and a male screw member may be attached to a corresponding location.

次に、雄ねじ部材1と雌ねじ部材2の係止方法について説明する。本実施例では雄ねじ部材1aおよびそれに対応する雌ねじ部材2をそれぞれ4個設けている。
また、各ねじ部材は右ねじである。
Next, a method for locking the male screw member 1 and the female screw member 2 will be described. In this embodiment, four male screw members 1a and four corresponding female screw members 2 are provided.
Each screw member is a right-hand thread.

まず、雄ねじ部材1aが取り付けられた画像読取装置7を、プリンタ装置20の上部の雌ねじ部材2が取り付けられた固定板5上に載置する。この状態では、雌ねじ部材2の上に雄ねじ部材1が乗っている状態であり、両ねじ部材は螺合されていない。そこで、雄ねじ部材1aと雌ねじ部材2が螺合する方向(右ねじの場合は時計回り)に回転することにより、両ねじ部材が螺合する(図2(b)参照)。雌ねじ部材2には、突片部18が形成されており、ユーザはこの突片部18に指を当てて力を加えることにより、特別な道具を使用することなく雌ねじ部材2を回転させることが出来る。このように両ねじ部材の螺合を4箇所すべてにおいて行うことで画像読取装置7を固定板5に固定することができる。前述のように螺合された固定ねじは、この時点ではなんら高さの調整がされておらず、その螺合状態は不均一である。よって、各ねじ部材の螺合状態を調整し画像読取装置7の水平度調整を行う必要がある。本実施例の場合は、画像読取装置7のフラットな面、例えば原稿載置面である透明ガラス板上に水平機などの計測器を置き、各雌ねじ部材2を時計回りに回転させ水平度調整を行う。ここで、各雌ねじ部材2を時計回りに回転させることにより画像読取装置7は下降し、反時計回りに回転させることにより画像読取装置7は上昇する。   First, the image reading device 7 to which the male screw member 1a is attached is placed on the fixing plate 5 to which the upper female screw member 2 of the printer device 20 is attached. In this state, the male screw member 1 is on the female screw member 2, and the both screw members are not screwed together. Therefore, both screw members are screwed together by rotating in the direction in which the male screw member 1a and the female screw member 2 are screwed together (clockwise in the case of a right screw) (see FIG. 2B). The female screw member 2 is formed with a projecting piece portion 18, and the user can rotate the female screw member 2 without using a special tool by applying a force to the projecting piece portion 18 by applying a finger. I can do it. Thus, the image reading device 7 can be fixed to the fixing plate 5 by screwing both the screw members at all four positions. The height of the fixing screw screwed as described above is not adjusted at this time, and the screwed state is not uniform. Therefore, it is necessary to adjust the level of the image reading device 7 by adjusting the screwed state of each screw member. In the case of this embodiment, a measuring instrument such as a leveling machine is placed on a flat surface of the image reading device 7, for example, a transparent glass plate as a document placement surface, and each female screw member 2 is rotated clockwise to adjust the level. I do. Here, the image reading device 7 is lowered by rotating each female screw member 2 clockwise, and the image reading device 7 is raised by rotating counterclockwise.

このようにプリンタ装置20の上部の固定板5に画像読取装置7を取り付け、および高さ調整を行うことにより画像読取装置7の固定と水平度調整が行われる。   In this way, the image reading device 7 is attached to the fixing plate 5 on the upper portion of the printer device 20 and the height is adjusted, whereby the image reading device 7 is fixed and the horizontality is adjusted.

また、本発明では、各ねじ部材を樹脂で形成している。そうすることにより画像読取装置およびプリンタ装置のどちらか一方で漏電が発生した場合でも、この部分からの他方への通電を遮断することが可能である。また、作業者の調整ミスで各ねじ部材に不必要な応力が発生した場合でも、各ねじ部材は樹脂で形成されているので、樹脂が撓むことにより発生した応力を吸収することができ、その応力によってシャーシ4が変形することを防止する。さらに、各ねじ部材を4箇所に設けているので、作業者の高さ調整の選択の幅が広がる。例えば、画像読取装7の一部分の高さが低いときには、その一部分の高さを上げても良いし、他の部分の高さを下げても良い(図6参照)。   Moreover, in this invention, each screw member is formed with resin. By doing so, even when a leakage occurs in either the image reading apparatus or the printer apparatus, it is possible to cut off the power supply from this part to the other. In addition, even when unnecessary stress is generated in each screw member due to an operator's adjustment error, since each screw member is formed of resin, it can absorb the stress generated by the bending of the resin, The chassis 4 is prevented from being deformed by the stress. Furthermore, since each screw member is provided at four locations, the range of selection of height adjustment by the operator is widened. For example, when the height of a part of the image reading device 7 is low, the height of the part may be increased, or the height of the other part may be decreased (see FIG. 6).

次に図3(a)および(b)に示す本発明の第二、第三実施形態について説明する。この実施形態の雄ねじ部材1b、1cは、先の実施形態の雄ねじ部材1aと基本的な構造は同じである。よって、この雄ねじ部材1b、1cに特有の構成についてのみ以下に説明し、雄ねじ部材1aと共通の構成については、同じ参照符号を付して説明を省略する。また、図面が記載されている紙面の下側を、図面に記載されている各ねじ部材の下方として以下の説明を行う。   Next, the second and third embodiments of the present invention shown in FIGS. 3A and 3B will be described. The male screw members 1b and 1c of this embodiment have the same basic structure as the male screw member 1a of the previous embodiment. Therefore, only the configuration peculiar to the male screw members 1b and 1c will be described below, and the configuration common to the male screw member 1a will be denoted by the same reference numerals and the description thereof will be omitted. In addition, the following description will be given with the lower side of the paper surface on which the drawings are described below the screw members illustrated in the drawings.

図3(a)に示す本発明の第二の実施形態である雄ねじ部材1bは、雄ねじ切り部14bの下方の先端に円柱状の小径部27を有し、その円周面上の一部には目印28が記されている。小径部27の直径は、この小径部27が相通される雌ねじ部材2の雌ねじ切り部19の直径よりも小さく形成している。よって、雄ねじ部材1bが取り付けられた画像読取装置7をプリンタ装置20の上部の固定板上に載置する際には、雄ねじ部材1bと雌ねじ部材2の位置を合わせるための位置決めピンとして活用することができる。また、画像読取装置7の水平度調整を行う際にも、図4に示すように小径部27に記された目印を確認することにより、容易に画像読取装置7の水平度調整を行うことが可能となる。   The male screw member 1b according to the second embodiment of the present invention shown in FIG. 3A has a cylindrical small-diameter portion 27 at the lower end of the male screw cutting portion 14b, and a part on the circumferential surface thereof. Is marked with a mark 28. The diameter of the small diameter portion 27 is formed smaller than the diameter of the female threaded portion 19 of the female screw member 2 through which the small diameter portion 27 communicates. Therefore, when the image reading device 7 to which the male screw member 1b is attached is placed on the fixing plate at the top of the printer device 20, it is used as a positioning pin for aligning the positions of the male screw member 1b and the female screw member 2. Can do. Also, when adjusting the level of the image reading device 7, the level of the image reading device 7 can be easily adjusted by confirming the mark on the small diameter portion 27 as shown in FIG. It becomes possible.

また、図3(b)に示す本発明の第三の実施形態である雄ねじ部材1cは、雄ねじ切り部14cの下方の先端に、多段に形成された円柱状の多段小径部29を有し、その円周面上の一部には目印である数字が記されている。多段小径部29は円柱状の小径部29aの下側端面に小径部29aよりも小径の円柱状の小径部29b、その下側端面に小径部29bよりも小径の円柱状の小径部29c、その下側端面に小径部29cよりも小径の円柱状の小径部29d、その下側端面に小径部29dよりも小径の円柱状の小径部29eが順番に形成されている。また、各小径部には、円周面上の一部には目印である数字が記されている。本実施形態においても第二の実施形態と同様に、小径部29a、29b、29c、29dおよび29eが画像読取装置7を固定板5に載置する際の位置決めピンとして活用できる。また、画像読取装置7の水平度調整を行う際にも、小径部27に記された目印および多段小径部29の段差を確認することにより、容易に画像読取装置7の水平度調整を行うことが可能となる。   Moreover, the external thread member 1c which is 3rd embodiment of this invention shown in FIG.3 (b) has the cylindrical multistage small diameter part 29 formed in multiple steps at the front-end | tip of the lower part of the external threading part 14c, A number as a mark is marked on a part of the circumferential surface. The multi-stage small-diameter portion 29 has a cylindrical small-diameter portion 29b having a smaller diameter than the small-diameter portion 29a on the lower end surface of the cylindrical small-diameter portion 29a, and a cylindrical small-diameter portion 29c having a smaller diameter than the small-diameter portion 29b on its lower-end surface. A cylindrical small-diameter portion 29d having a diameter smaller than that of the small-diameter portion 29c is formed on the lower end surface, and a cylindrical small-diameter portion 29e having a diameter smaller than that of the small-diameter portion 29d is sequentially formed on the lower end surface thereof. Each small-diameter portion is marked with a number as a mark on a part of the circumferential surface. Also in the present embodiment, as in the second embodiment, the small diameter portions 29a, 29b, 29c, 29d, and 29e can be used as positioning pins when the image reading device 7 is placed on the fixed plate 5. In addition, when adjusting the level of the image reading device 7, the level of the image reading device 7 can be easily adjusted by checking the marks on the small diameter portion 27 and the steps of the multistage small diameter portion 29. Is possible.

なお、本実施の形態で示した画像形成装置の構成は一例にすぎず、本発明の要旨を逸脱しない範囲内で適宜設計変更できることは勿論である。   The configuration of the image forming apparatus shown in the present embodiment is merely an example, and it is needless to say that the design can be changed as appropriate without departing from the gist of the present invention.

本発明の第一の実施形態の雄ねじ部材1aおよび雌ねじ部材2を示す斜視図である。It is a perspective view which shows the external thread member 1a and internal thread member 2 of 1st embodiment of this invention. 雄ねじ部材1aおよび雌ねじ部材2の取り付け状態を示す断面図である。It is sectional drawing which shows the attachment state of the external thread member 1a and the internal thread member 2. FIG. 本発明の第二、第三の実施形態の雄ねじ部材1b、1cを示す図である。It is a figure which shows the external thread member 1b, 1c of 2nd, 3rd embodiment of this invention. 本発明の第二の実施形態の雄ねじ部材1bと雌ねじ部材2の取付け状態を示す図である。It is a figure which shows the attachment state of the external thread member 1b and internal thread member 2 of 2nd embodiment of this invention. 画像形成装置6の斜視図を示す。FIG. 3 is a perspective view of the image forming apparatus 6. 雄ねじ部材1aおよび雌ねじ部材2の取り付け状態を示す図である。It is a figure which shows the attachment state of the external thread member 1a and the internal thread member 2. FIG.

符号の説明Explanation of symbols

1a 雄ねじ部材
2 雌ねじ部材
3 固定ねじ
4 シャーシ
5 固定板
6 画像形成装置
7 画像読取装置
20 プリンタ装置






















DESCRIPTION OF SYMBOLS 1a Male screw member 2 Female screw member 3 Fixing screw 4 Chassis 5 Fixing plate 6 Image forming apparatus 7 Image reading apparatus 20 Printer apparatus






















Claims (5)

載置された原稿の読み取りを行う画像読取装置と、
前記画像読取装置を固定するための固定板と、
を有する画像形成装置において、
前記画像読取装置には画像読取装置を固定するための雄ねじ部材が取り付けられ、前記画像読取装置が固定される固定板には、前記雄ねじ部材と螺合する雌ねじ部材が回転自在に取り付けられていることを特徴とする画像形成装置。
An image reading device for reading the placed document;
A fixing plate for fixing the image reading device;
In an image forming apparatus having
A male screw member for fixing the image reading device is attached to the image reading device, and a female screw member screwed with the male screw member is rotatably attached to a fixing plate to which the image reading device is fixed. An image forming apparatus.
前記雌ねじ部材は、スナップフィットにより前記固定板に取り付けられていることを特徴とする請求項1に記載の画像形成装置。     The image forming apparatus according to claim 1, wherein the female screw member is attached to the fixing plate by a snap fit. 前記雄ねじ部材および雌ねじ部材は、樹脂から成ることを特徴とする請求項1または2に記載の画像形成装置。   3. The image forming apparatus according to claim 1, wherein the male screw member and the female screw member are made of resin. 前記雄ねじ部材および雌ねじ部材は、それぞれ複数個取り付けられていることを特徴とする請求項1から3のいずれか1項に記載の画像形成装置。   4. The image forming apparatus according to claim 1, wherein a plurality of male screw members and a plurality of female screw members are attached to each other. 5. 前記雄ねじ部材は前記雌ねじ部材との位置合わせをするための小径部を有し、前記小径部には前記雌ねじ部材との螺合状態を確認するための目印が付されていること、を特徴とする請求項1から3のいずれか1項に記載の画像形成装置。







The male screw member has a small-diameter portion for positioning with the female screw member, and the small-diameter portion is provided with a mark for confirming a screwed state with the female screw member. The image forming apparatus according to any one of claims 1 to 3.







JP2005056821A 2005-03-02 2005-03-02 Image forming apparatus Pending JP2006243203A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009145823A (en) * 2007-12-18 2009-07-02 Kyocera Mita Corp Image forming apparatus
JP2011059354A (en) * 2009-09-09 2011-03-24 Murata Machinery Ltd Image forming apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212254A (en) * 1982-06-04 1983-12-09 Fuji Xerox Co Ltd Facsimile device
JPH10281132A (en) * 1997-03-31 1998-10-20 Ntn Corp Resin nut, manufacture thereof, and slide screw device
JP2002136755A (en) * 2000-11-06 2002-05-14 Heiwa Corp Installation structure for pachinko machine and installation method for pachinko machine
JP2004274651A (en) * 2003-03-12 2004-09-30 Kyocera Mita Corp Image forming apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212254A (en) * 1982-06-04 1983-12-09 Fuji Xerox Co Ltd Facsimile device
JPH10281132A (en) * 1997-03-31 1998-10-20 Ntn Corp Resin nut, manufacture thereof, and slide screw device
JP2002136755A (en) * 2000-11-06 2002-05-14 Heiwa Corp Installation structure for pachinko machine and installation method for pachinko machine
JP2004274651A (en) * 2003-03-12 2004-09-30 Kyocera Mita Corp Image forming apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009145823A (en) * 2007-12-18 2009-07-02 Kyocera Mita Corp Image forming apparatus
JP2011059354A (en) * 2009-09-09 2011-03-24 Murata Machinery Ltd Image forming apparatus

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