JP2005329566A - Opening and closing mechanism of image forming apparatus - Google Patents

Opening and closing mechanism of image forming apparatus Download PDF

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JP2005329566A
JP2005329566A JP2004147984A JP2004147984A JP2005329566A JP 2005329566 A JP2005329566 A JP 2005329566A JP 2004147984 A JP2004147984 A JP 2004147984A JP 2004147984 A JP2004147984 A JP 2004147984A JP 2005329566 A JP2005329566 A JP 2005329566A
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opening
closing body
forming apparatus
image forming
closing
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JP4599089B2 (en
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Yasunori Kawamura
泰則 河村
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Kyocera Document Solutions Inc
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Kyocera Mita Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening and closing mechanism of an image forming apparatus in which an opening/closing body can open or close without interfering with an adjacent member, and which can make small a clearance between the opening/closing body and its adjacent member. <P>SOLUTION: The opening and closing mechanism of the image forming apparatus 1 which is equipped with an image forming apparatus body 2 and the opening/closing body 4 set at an opening part 3 of the image forming apparatus body 2 to be opened or closed includes a pin member set at a member of one of the image forming apparatus body 2 and the opening/closing body 4, and an engaging part which is set at a member of the other and with which the pin member is engaged slidably and rotatably around a pin axis. In relation to an opening/closing body separate side end edge 4a and an opening/closing body proximate side end edge 4b located at an opening/closing body extension direction end face of the opening/closing body 4 in a total close posture, a locus at the time of the opening or closing operation of the opening/closing body 4 is set within a region surrounded by both of the full close posture and a full open posture of the opening/closing body 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、画像形成装置本体と、前記画像形成装置本体の開口部に備えられ、開閉動作される開閉体とを備えた画像形成装置の開閉機構に関する。   The present invention relates to an opening / closing mechanism of an image forming apparatus including an image forming apparatus main body and an opening / closing body that is provided at an opening of the image forming apparatus main body and that is opened and closed.

従来、例えば、複写機やファクシミリ等の画像形成装置におけるフロントカバーは、一般的に、ヒンジ等のカバー取付機構によって画像形成装置本体に取付けられている。このようなカバー取付機構では、カバーを開閉する際、カバーがその取付位置からはみ出して隣接部材に対し干渉しながら回動するため、隣接部材との間に隙間が設けられている。カバーと隣接部材との間の隙間が大きいと、埃やこぼれたトナー等が画像形成装置本体内部に入り込み易くなるため、カバーと隣接部材との間の隙間を小さくする技術が求められている。
カバーと隣接部材との間の隙間を小さくするための技術には、例えば、２つのアーム型ヒンジによってカバーを本体部に取付けるように構成したカバー取付機構がある（例えば、特許文献１参照）。このカバー取付機構は、大型の２つのアーム型ヒンジによって隣接部材を避けながらカバーを開閉動作させるものであり、開閉動作時にカバーが隣接部材に干渉しないので、カバーと隣接部材との間に大きな隙間を設ける必要がない。 Conventionally, for example, a front cover in an image forming apparatus such as a copying machine or a facsimile is generally attached to the main body of the image forming apparatus by a cover attaching mechanism such as a hinge. In such a cover attachment mechanism, when the cover is opened and closed, the cover protrudes from the attachment position and rotates while interfering with the adjacent member. Therefore, a gap is provided between the adjacent member. If the gap between the cover and the adjacent member is large, dust or spilled toner or the like is likely to enter the image forming apparatus main body. Therefore, a technique for reducing the gap between the cover and the adjacent member is required.
As a technique for reducing the gap between the cover and the adjacent member, for example, there is a cover attachment mechanism configured to attach the cover to the main body by two arm type hinges (see, for example, Patent Document 1). This cover mounting mechanism opens and closes the cover while avoiding the adjacent member by two large arm type hinges, and since the cover does not interfere with the adjacent member during the opening and closing operation, there is a large gap between the cover and the adjacent member. There is no need to provide.

特開２００１−１３００９５号公報（第１図）Japanese Patent Laid-Open No. 2001-130095 (FIG. 1)

しかし、特許文献１のカバー取付機構は、隣接部材を避けながらカバーを開閉動作させるため、及び、アーム型ヒンジの耐久性を高めるために、アーム型ヒンジが大型になる。このため、画像形成装置本体に、アーム型ヒンジを設置するための大きなスペースが必要となるという問題があった。   However, in the cover mounting mechanism of Patent Document 1, the arm type hinge becomes large in order to open and close the cover while avoiding adjacent members and to increase the durability of the arm type hinge. For this reason, there has been a problem that a large space is required for installing the arm type hinge in the image forming apparatus main body.

本発明は上記の問題に鑑みてなされたものであり、その目的は、隣接部材に干渉することなく開閉体が開閉動作可能であり、且つ、開閉体とその隣接部材との間の隙間を小さくすることのできる画像形成装置の開閉機構を提供する点にある。   The present invention has been made in view of the above problems, and an object of the present invention is to allow the opening / closing body to open and close without interfering with the adjacent member, and to reduce the gap between the opening / closing body and the adjacent member. The present invention is to provide an open / close mechanism of an image forming apparatus that can do this.

この目的を達成するための本発明に係る画像形成装置の開閉機構の特徴構成は、画像形成装置本体と、前記画像形成装置本体の開口部に備えられ、開閉動作される開閉体とを備えた画像形成装置の開閉機構であって、前記画像形成装置本体と前記開閉体との一方の部材に設けられるピン部材と、他方の部材に設けられ、前記ピン部材がピン軸周りに回動可能且つ摺動可能に係合する係合部とを備え、全閉姿勢における前記開閉体の開閉体延設方向端面に位置される開閉体離間側端と開閉体近接側端とに関して、前記開閉体の開閉動作時の軌跡が、前記開閉体の全閉姿勢及び全開姿勢の両姿勢で囲まれる領域内に設定されている点にある。   In order to achieve this object, a characteristic configuration of an opening / closing mechanism of an image forming apparatus according to the present invention includes an image forming apparatus main body, and an opening / closing body that is provided at an opening of the image forming apparatus main body and that is opened and closed. An opening / closing mechanism of an image forming apparatus, the pin member being provided on one member of the image forming apparatus main body and the opening / closing body, and the other member, wherein the pin member is rotatable about a pin axis and And an opening / closing body separating side end and an opening / closing body proximity side end positioned on the opening / closing body extending direction end face of the opening / closing body in the fully closed position. The locus during the opening / closing operation is that it is set within a region surrounded by both the fully closed posture and the fully open posture of the opening / closing body.

ここでの開閉体延設方向は、開閉体表裏方向、及び、ピン軸に平行な開閉体軸方向の両方向に直交する方向を示しており、例えば、図２における紙面上下方向、図４における紙面上下方向で、この方向の一方端側にピン部材が位置し、他方端側が開放される方向である。開閉体離間側端及び開閉体近接側端は、開閉体のピン部材設置側の開閉体延設方向端面に位置し、画像形成装置本体側とは反対側を開閉体離間側端、画像形成装置本体側を開閉体近接側端としている。例えば、図２（ａ）において、前者は４ａを意味し、後者は４ｂを意味している。
即ち、上記特徴構成によれば、開閉動作時の開閉体離間側端及び開閉体近接側端の軌跡が、開閉体の全閉姿勢及び全開姿勢の両姿勢で囲まれる領域内に設定されているので、開閉体離間側端と開閉体近接側端とが前記領域内からはみ出すことなく回動する。このため、開閉動作の際に、開閉体が隣接部材に干渉することがなく、開閉体と隣接部材との間に隙間を設ける必要がないので、画像形成装置の小型化を図ることができる。そして、開閉体と隣接部材との間の隙間を小さくできることから、埃やこぼれたトナー等が内部に入り込み難くすることができる。
また、上記特徴構成によれば、ピン部材及び係合部を用いて、開閉機構の構造を簡素化することができる。大型の部材を必要としないため、画像形成装置本体に取付のための大きなスペースを設ける必要がなくなり、画像形成装置の小型化を図ることができる。
更に、上記特徴構成によれば、開閉体の開閉動作において、開閉体延設方向端面に平行な画像形成装置本体の延設方向端面から開閉体の開閉体離間側端がはみ出すことがないので、画像形成装置を設置する際、画像形成装置本体の幅方向端と壁や他の装置との間に隙間を設ける必要がなく、省スペース化を図ることができる。 The extending direction of the opening / closing body here indicates the direction perpendicular to both the opening / closing body front / back direction and the opening / closing body axis direction parallel to the pin axis, for example, the vertical direction of the paper surface in FIG. 2, the paper surface in FIG. In the vertical direction, the pin member is located on one end side in this direction, and the other end side is opened. The opening / closing body separating side end and the opening / closing body proximity side end are positioned on the opening / closing body extending direction end surface of the opening / closing body pin member installation side, and the opposite side of the image forming apparatus main body side is the opening / closing body separating side end, The main body side is the opening / closing body proximity side end. For example, in FIG. 2A, the former means 4a and the latter means 4b.
That is, according to the above characteristic configuration, the locus of the opening / closing body separating side end and the opening / closing body proximity side end during the opening / closing operation is set within a region surrounded by both the fully closed posture and the fully open posture of the opening / closing body. Therefore, the opening / closing body separating side end and the opening / closing body proximity side end rotate without protruding from the region. For this reason, during the opening / closing operation, the opening / closing body does not interfere with the adjacent member, and there is no need to provide a gap between the opening / closing body and the adjacent member. Therefore, the image forming apparatus can be downsized. Since the gap between the opening / closing body and the adjacent member can be reduced, dust, spilled toner, and the like can be prevented from entering the inside.
Moreover, according to the said characteristic structure, the structure of an opening-closing mechanism can be simplified using a pin member and an engaging part. Since a large member is not required, it is not necessary to provide a large space for attachment in the image forming apparatus main body, and the image forming apparatus can be downsized.
Further, according to the above characteristic configuration, in the opening / closing operation of the opening / closing member, the opening / closing member separating side end of the opening / closing member does not protrude from the extending direction end surface of the image forming apparatus main body parallel to the opening / closing member extending direction end surface. When installing the image forming apparatus, it is not necessary to provide a gap between the widthwise end of the image forming apparatus main body and the wall or another apparatus, and space can be saved.

本発明に係る画像形成装置の開閉機構の他の特徴構成は、開閉体に設けられるピン部材と、前記開閉体が開閉する開口部を備えた画像形成装置本体に設けられ、前記ピン部材がピン軸周りに回動可能且つ摺動可能に係合する係合部とを備え、前記開閉体の全閉姿勢において、前記ピン部材の軸心位置が、開閉体表裏方向端面と、前記ピン軸に平行な開閉体軸方向及び前記開閉体表裏方向に直交する開閉体延設方向端面とから、共に開閉体表裏方向における幅の半分の位置とされ、前記係合部が、前記開閉体延設方向端面に平行な前記画像形成装置本体の延設方向端面と、前記開閉体表裏方向端面に平行な前記画像形成装置本体の近接離間方向端面との両端面方向を二等分する方向に直線状に延びる直線状係合孔である点にある。   Another characteristic configuration of the opening / closing mechanism of the image forming apparatus according to the present invention includes a pin member provided in the opening / closing body and an image forming apparatus body provided with an opening that opens and closes the opening / closing body, and the pin member is a pin. An engaging portion that is pivotably and slidably movable about an axis, and in the fully closed position of the opening and closing body, the axial center position of the pin member is on the end face of the opening and closing body and the pin shaft. From the parallel opening / closing body axial direction and the opening / closing body extending direction end surface orthogonal to the opening / closing body front / back direction, both are positioned at half the width in the opening / closing body front / back direction, and the engaging portion is the opening / closing body extending direction Linearly extending in a direction that bisects both end face directions of the extending direction end face of the image forming apparatus main body parallel to the end face and the close / separating direction end face of the image forming apparatus main body parallel to the opening / closing body front / back end face It is the point which is a linear engagement hole extended.

開閉動作時に開閉体が隣接部材に干渉するのを防ぐために、開閉動作時の開閉体の開閉体離間側端と開閉体近接側端との軌跡を開閉体の全閉姿勢及び全開姿勢の両姿勢で囲まれる領域内に設定して開閉体を回動させるとき、上記特徴構成の如く、ピン部材の軸心位置を開閉体延設方向端面及び開閉体表裏方向端面から開閉体表裏方向の幅の半分の位置に設定すると、ピン部材は、画像形成装置本体の延設方向端面と近接離間方向端面との両端面方向を二等分する方向に延びる直線上を回動しながら移動する。ピン部材の軸心位置が他の位置に設定されている場合には、ピン部材は曲線上を移動することとなる。従って、上記特徴構成の如く構成することにより、係合部を前記直線上に延びる直線状係合孔に形成することができ、係合孔の構成を簡素化して、本発明装置の製造を容易にすることができる。
また、上記特徴構成の如く構成することにより、開閉動作時に開閉体離間側端と開閉体近接側端とが前記領域内からはみ出すことなく回動させることができ、隣接部材に干渉しないため、開閉体と隣接部材との間に大きな隙間を設ける必要がなく、画像形成装置の小型化を図ることができる。 To prevent the opening / closing body from interfering with adjacent members during the opening / closing operation, the locus between the opening / closing body separating side end and the opening / closing body proximity side end of the opening / closing body during the opening / closing operation is determined by both the fully closed position and the fully open position of the opening / closing body. When the opening / closing body is rotated by setting it within the region surrounded by the opening / closing body front / back direction width from the opening / closing body extending direction end face and the opening / closing body front / back direction end face, as in the above-described characteristic configuration. When set to a half position, the pin member moves while rotating on a straight line extending in a direction that bisects both end surface directions of the extending direction end surface and the approaching / separating direction end surface of the image forming apparatus main body. When the axial center position of the pin member is set to another position, the pin member moves on the curve. Therefore, by configuring as in the above-described characteristic configuration, the engaging portion can be formed in a linear engaging hole extending on the straight line, and the configuration of the engaging hole is simplified and the manufacture of the device of the present invention is facilitated. Can be.
Further, by configuring as in the above characteristic configuration, the opening / closing body separating side end and the opening / closing body proximity side end can be rotated without protruding from the region during the opening / closing operation, and the opening / closing body is not interfered. There is no need to provide a large gap between the body and the adjacent member, and the image forming apparatus can be downsized.

更に、他の特徴構成は、前記ピン部材の前記係合部に対する回動又は摺動に関して、前記開閉体の開閉動作に連動して前記ピン部材の回動又は摺動を案内するガイド部を設けた点にある。
即ち、上記特徴構成によれば、軸心位置が開閉体延設方向端面及び開閉体表裏方向端面から開閉体表裏方向の幅の半分の位置に設定された一つのピン部材に対し、ガイド部を設けて開閉体の回動又は摺動を案内するので、ピン部材を複数設ける必要がなく、装置の構成を簡素化することができる。また、開閉動作時に開閉体離間側端と開閉体近接側端とが前記領域内からはみ出すことがないので、開閉体と隣接部材との間に大きな隙間を設ける必要がなく、画像形成装置の小型化を図ることができる。 Furthermore, another characteristic configuration is provided with a guide portion that guides the rotation or sliding of the pin member in conjunction with the opening / closing operation of the opening / closing body with respect to the rotation or sliding of the pin member with respect to the engaging portion. It is in the point.
That is, according to the above-mentioned characteristic configuration, the guide portion is provided for one pin member whose axial center position is set to a position that is half the width in the opening / closing body front / back direction from the opening / closing body extending direction end face and the opening / closing body front / back direction end face. Since it is provided to guide the rotation or sliding of the opening / closing body, it is not necessary to provide a plurality of pin members, and the configuration of the apparatus can be simplified. Further, since the opening / closing body separating side end and the opening / closing body proximity side end do not protrude from the region during the opening / closing operation, there is no need to provide a large gap between the opening / closing body and the adjacent member, and the image forming apparatus can be reduced in size. Can be achieved.

更に、他の特徴構成は、前記ピン軸に平行な前記画像形成装置本体の軸方向に一対並設されるガイド板を備えるとともに、前記一対のガイド板に、それぞれ前記直線状係合孔が設けられている点にある。
即ち、上記特徴構成によれば、一対の案内板を設ける構成にすることで、耐久性を維持しながら、開閉体の取付に係る部材を一箇所にまとめてこれらの部材のための設置スペースを小さくすることができ、画像形成装置の小型化を図ることができる。 Furthermore, another characteristic configuration includes a pair of guide plates arranged in parallel in the axial direction of the image forming apparatus main body parallel to the pin axis, and the linear engagement holes are provided in the pair of guide plates, respectively. It is in the point.
That is, according to the above-described characteristic configuration, by providing a pair of guide plates, the members related to mounting of the opening and closing body are gathered in one place while maintaining the durability, and an installation space for these members is provided. Therefore, the image forming apparatus can be reduced in size.

以下、本発明に係る画像形成装置の開閉機構（以下、適宜「本発明機構」と略称する）の実施形態を図面に基づいて説明する。
本発明機構は、複写機等の画像形成装置１に適用される。図１に示すように、画像形成装置本体２の開口部３に、略直方体状に形成されたフロントカバーが開閉体４として設けられており、開閉体４の下部には、給紙トレイ等の別部材のカバーが隣接部材７として設置されている。 Hereinafter, an embodiment of an opening / closing mechanism of an image forming apparatus according to the present invention (hereinafter abbreviated as “the mechanism of the present invention” as appropriate) will be described with reference to the drawings.
The mechanism of the present invention is applied to an image forming apparatus 1 such as a copying machine. As shown in FIG. 1, a front cover formed in a substantially rectangular parallelepiped shape is provided in the opening 3 of the image forming apparatus main body 2 as an opening / closing body 4. A separate member cover is installed as the adjacent member 7.

本発明機構は、画像形成装置本体２と開閉体４との一方の部材に設けられるピン部材５と、他方の部材に設けられ、ピン部材５がピン軸周りに回動可能且つ摺動可能に係合する係合部６とを備え、全閉姿勢における開閉体４の開閉体延設方向端面４ｄに位置される開閉体離間側端辺４ａと開閉体近接側端辺４ｂとに関して、開閉体４の開閉動作時の軌跡が、開閉体４の全閉姿勢及び全開姿勢の両姿勢で囲まれる領域内に設定されている。   The mechanism of the present invention is provided with a pin member 5 provided on one member of the image forming apparatus main body 2 and the opening / closing body 4 and on the other member so that the pin member 5 can rotate and slide around the pin axis. An opening / closing body with respect to the opening / closing body separating side edge 4a and the opening / closing body proximity side edge 4b located on the opening / closing body extending direction end face 4d of the opening / closing body 4 in the fully closed position. 4 is set in a region surrounded by both the fully closed posture and the fully open posture of the open / close body 4.

先ず、本発明に係る画像形成装置１の開閉機構の第一実施形態について、図１及び図２を基に説明する。ここで、本実施形態では、ピン部材５のピン軸が、画像形成装置本体２の正面視左右方向に沿って設けられており、この方向が開閉体軸方向と一致する。また、開閉体表裏方向及び開閉体軸方向の両方向に垂直な方向、言換えると、開閉体４が全閉姿勢のときに、画像形成装置本体２の正面視上下方向に一致する方向を開閉体延設方向とする。本実施形態では、開閉体４の軸方向端面４ｅの夫々に２つのピン部材５ａ、５ｂを開閉体軸方向に沿って設け、これに対応する２つの係合部６ａ、６ｂを画像形成装置本体２に設けてある。   First, a first embodiment of the opening / closing mechanism of the image forming apparatus 1 according to the present invention will be described with reference to FIGS. 1 and 2. Here, in the present embodiment, the pin shaft of the pin member 5 is provided along the left-right direction of the image forming apparatus main body 2 as viewed from the front, and this direction coincides with the opening / closing body axis direction. The direction perpendicular to both the front and back direction of the opening / closing body and the axial direction of the opening / closing body, in other words, when the opening / closing body 4 is in the fully closed position, the direction that coincides with the vertical direction of the image forming apparatus main body 2 is viewed. The extension direction. In the present embodiment, two pin members 5a and 5b are provided on the axial end surface 4e of the opening / closing body 4 along the opening / closing body axial direction, and the two engaging portions 6a and 6b corresponding thereto are provided in the image forming apparatus main body. 2 is provided.

ピン部材５は、ヒンジピンとして構成されており、開閉体４の軸方向端面４ｅに夫々２つずつ配設され、軸方向端面４ｅから開閉体軸方向外方に突出するように設置されている。ここで、図２（ａ）に示すように、開閉体４の表裏方向（紙面左右方向）の幅をｔとすると、一方のピン部材５ａの軸心位置が、開閉体表裏方向端面４ｃと開閉体延設方向端面４ｄとから共にｔ／２の位置に設定されている。他方のピン部材５ｂの軸心位置は、開閉体近接側端辺４ｂの位置に設定されている。   The pin member 5 is configured as a hinge pin, and two pin members 5 are disposed on the axial end face 4e of the opening / closing body 4, and are disposed so as to protrude outward in the opening / closing body axial direction from the axial end face 4e. Here, as shown in FIG. 2A, when the width of the opening / closing body 4 in the front and back direction (left and right direction in the drawing) is t, the axial center position of one pin member 5a is opened and closed with the opening / closing body front / back direction end face 4c. Both are set at a position of t / 2 from the end surface 4d in the body extending direction. The axial center position of the other pin member 5b is set to the position of the opening / closing body proximity side edge 4b.

係合部６は、画像形成装置本体２に設けられる直線状係合孔であり、ピン部材５ａ、５ｂ夫々に対応して形成されている。図２（ａ）に示すように、ピン部材５ａに対応する係合部６ａが、全閉姿勢における開閉体４の開閉体表裏方向端面４ｃに平行な画像形成装置本体２の近接離間方向端面と、全閉姿勢における開閉体４の開閉体延設方向端面４ｄに平行な画像形成装置本体２の正面視上下方向端面との両端面方向を二等分する方向、即ち、図２（ａ）において開閉体近接側端辺４ｂから左上り４５度の方向に、直線状に延びる直線状係合孔として構成されている。ピン部材５ｂに対応する係合部６ｂは、開閉体４の全閉姿勢における開閉体近接側端辺４ｂの位置Ａから、開閉体４の全開姿勢における開閉体近接側端辺４ｂの位置Ｂに延びる直線状孔として形成されている。   The engagement portion 6 is a linear engagement hole provided in the image forming apparatus main body 2 and is formed corresponding to each of the pin members 5a and 5b. As shown in FIG. 2A, the engaging portion 6a corresponding to the pin member 5a has an end face in the approaching / separating direction of the image forming apparatus main body 2 parallel to the opening / closing body front / back direction end face 4c of the opening / closing body 4 in the fully closed position. In the fully closed position, the direction of both ends of the opening / closing body extending direction end face 4d of the opening / closing body 4 parallel to the end face in the front-view vertical direction of the image forming apparatus body 2 is bisected, that is, in FIG. It is configured as a linear engagement hole extending linearly in the direction of 45 degrees to the left from the opening / closing body proximity side edge 4b. The engaging portion 6 b corresponding to the pin member 5 b is moved from the position A of the opening / closing body proximity side edge 4 b in the fully closed position of the opening / closing body 4 to the position B of the opening / closing body proximity side edge 4 b in the fully open position of the opening / closing body 4. It is formed as an extending linear hole.

開閉体４を開き動作させると、ピン部材５ａ及びピン部材５ｂは連動して移動する。ここで、図２（ａ）の矢印は、開閉体４の開動作時におけるピン部材５ａ及びピン部材５ｂの軌跡を示している。詳細には、図２（ａ）乃至（ｃ）に示すように、ピン部材５ａが、係合部６ａ内を下方から上方、上方から下方へ往復移動するのに伴って、ピン部材５ｂが位置Ａから位置Ｂまで直線移動する。開閉体４を閉じ動作させるときには、ピン部材５ａ、５ｂは開き動作時とは逆に移動する。このとき、開閉体４の開閉体離間側端辺４ａ及び開閉体近接側端辺４ｂの両方が、開閉体４の全閉姿勢及び全開姿勢の両姿勢で囲まれる領域内で移動し隣接部材７に干渉しないので、開閉体４と隣接部材７との隙間を少なくすることができる。   When the opening / closing body 4 is opened, the pin member 5a and the pin member 5b move in conjunction with each other. Here, the arrows in FIG. 2A indicate the trajectories of the pin member 5a and the pin member 5b when the opening / closing body 4 is opened. Specifically, as shown in FIGS. 2A to 2C, as the pin member 5a reciprocates in the engaging portion 6a from below to above and from above to below, the pin member 5b is positioned. Move straight from A to position B. When the opening / closing body 4 is closed, the pin members 5a and 5b move in the opposite direction to that during the opening operation. At this time, both of the opening / closing body separating side edge 4a and the opening / closing body proximity side edge 4b of the opening / closing body 4 move within a region surrounded by both the fully closed posture and the fully open posture of the opening / closing body 4 to move to the adjacent member 7. Therefore, the gap between the opening / closing body 4 and the adjacent member 7 can be reduced.

次に、本発明に係る画像形成装置１の開閉機構の第二実施形態について、図３及び図４を基に説明する。第一実施形態では、開閉体４の軸方向端面４ｅの夫々に２つのピン部材５ａ、５ｂを設け、これらに対応する係合部６ａ、６ｂを画像形成装置本体２に設けて構成したが、本実施形態は、図３に示すように、１つのピン部材５ｃ、一対のガイド板８、一対の固定板１０を備えて構成される。   Next, a second embodiment of the opening / closing mechanism of the image forming apparatus 1 according to the present invention will be described with reference to FIGS. In the first embodiment, two pin members 5a and 5b are provided on the axial end surface 4e of the opening / closing body 4, and the corresponding engaging portions 6a and 6b are provided in the image forming apparatus main body 2. As shown in FIG. 3, this embodiment includes one pin member 5 c, a pair of guide plates 8, and a pair of fixed plates 10.

本実施形態のピン部材５ｃは、棒状部材で構成されており、開閉体４の開閉体軸方向に延設されている。詳細には、ピン部材５ｃは、一対のガイド板８ａ、８ｂに設けられた係合部６ｃ、６ｄの両方に回動可能且つ摺動可能に挿通された状態で、一対の固定板１０ａ、１０ｂに形成された固定孔１２ａ、１２ｂの両方に挿通され固定される。   The pin member 5 c of the present embodiment is composed of a rod-like member and extends in the opening / closing body axial direction of the opening / closing body 4. Specifically, the pin member 5c is inserted into both of the engaging portions 6c and 6d provided on the pair of guide plates 8a and 8b so as to be rotatable and slidable, and the pair of fixing plates 10a and 10b. Are inserted into and fixed to both of the fixing holes 12a and 12b.

ガイド板８は、画像形成装置本体２の正面視左右方向の略中央に一対設けられている。ガイド板８ａには、係合部６ｃ及びガイド部９ａが設けられ、同様に、ガイド板８ｂには、係合部６ｄ及びガイド部９ｂが設けられている。
係合部６ｃ、６ｄは、第一実施形態における係合部６ａと同様に、画像形成装置本体２の正面視上下方向端面と近接離間方向端面との両端面方向を二等分する方向に、図４（ａ）において開閉体近接側端辺４ｂから左上がり４５度の方向に、直線状に延びる直線状係合孔として構成されている。
ガイド部９は、ピン部材５ｃの係合部６に対する回動又は摺動に関して、開閉体４の開閉動作に連動してピン部材５ｃの回動又は摺動を案内するように構成されている。詳細には、ガイド部９ａ（９ｂ）は、固定板１０ａ（１０ｂ）の当接部１１ａ（１１ｂ）が開閉体近接側端辺４ｂに対応する位置に設けられているので、開閉体４の全閉位置における開閉体近接側端辺４ｂに対応する位置Ａから開閉体４の全開位置における開閉体近接側端辺４ｂに対応する位置Ｂにかけて設けられている。このように構成することで、ガイド部９は、開閉体４の開閉動作時に、開閉体４の開閉体離間側端辺４ａ及び開閉体近接側端辺４ｂの両方が開閉体４の全閉姿勢及び全開姿勢の両姿勢で囲まれる領域内で移動するように当接部１１を案内する。尚、ガイド部９は、係合部６と共にガイド板８上に一体に形成されているので、係合部６との位置精度が良好なものとなっている。 A pair of guide plates 8 are provided in the approximate center of the image forming apparatus main body 2 in the left-right direction when viewed from the front. The guide plate 8a is provided with an engaging portion 6c and a guide portion 9a. Similarly, the guide plate 8b is provided with an engaging portion 6d and a guide portion 9b.
Similar to the engaging portion 6a in the first embodiment, the engaging portions 6c and 6d are halved in a direction that bisects both end surface directions of the front-view vertical direction end surface and the proximity separation direction end surface of the image forming apparatus main body 2. In FIG. 4A, it is configured as a linear engagement hole extending linearly in the direction of 45 degrees to the left from the opening / closing body proximity side edge 4b.
The guide portion 9 is configured to guide the rotation or sliding of the pin member 5 c in conjunction with the opening / closing operation of the opening / closing body 4 with respect to the rotation or sliding of the pin member 5 c with respect to the engaging portion 6. Specifically, since the guide portion 9a (9b) is provided at a position where the contact portion 11a (11b) of the fixed plate 10a (10b) corresponds to the open / close body proximity side edge 4b, It is provided from a position A corresponding to the opening / closing body proximity side edge 4 b in the closed position to a position B corresponding to the opening / closing body proximity side edge 4 b in the fully open position of the opening / closing body 4. With this configuration, when the opening / closing body 4 is opened / closed, the guide portion 9 has both the opening / closing body separating side edge 4a and the opening / closing body proximity side edge 4b of the opening / closing body 4 fully closed. And the contact part 11 is guided so that it may move within the area | region enclosed by both attitude | positions of a fully open attitude | position. In addition, since the guide part 9 is integrally formed with the engaging part 6 on the guide plate 8, the positional accuracy with the engaging part 6 is favorable.

固定板１０は、画像形成装置本体２の正面視左右方向に一対設けられており、画像形成装置本体２の正面視左右方向の略中央に、ガイド板８ａ、８ｂに囲まれる位置に配設されている。固定板１０ａ、１０ｂは、夫々、略直角三角形に形成され、開閉体近接側端辺４ｂに対応する位置に配設された鋭角部分が、当接部１１となるように円弧状に形成されている。更に、固定板１０ａ、１０ｂには、夫々、ピン部材５ｃを係合するための固定孔１２ａ、１２ｂが設けられている。固定孔１２ａ、１２ｂは、第一実施形態におけるピン部材５ａの場合と同様に、ピン部材５ｃを係合したとき、ピン部材５ｃの軸心位置が、開閉体表裏方向端面４ｃ及び開閉体延設方向端面４ｄから共にｔ／２の位置となるように設定されている。   A pair of fixing plates 10 is provided in the left-right direction of the image forming apparatus main body 2 in the front view, and is disposed at a position surrounded by the guide plates 8a and 8b at the approximate center in the left-right direction of the image forming apparatus main body 2. ing. Each of the fixing plates 10a and 10b is formed in a substantially right-angled triangle, and is formed in an arc shape so that an acute angle portion disposed at a position corresponding to the opening / closing body proximity side edge 4b becomes the contact portion 11. Yes. Furthermore, the fixing plates 10a and 10b are provided with fixing holes 12a and 12b for engaging the pin member 5c, respectively. As in the case of the pin member 5a in the first embodiment, when the pin member 5c is engaged, the fixing holes 12a and 12b are arranged such that the axial center position of the pin member 5c is the opening / closing body front / back end face 4c and the opening / closing body extension. Both are set to be t / 2 from the direction end face 4d.

図４に示すように、開閉体４を開き動作させると、当接部１１ａがガイド部９ａに当接し、当接部１１ｂがガイド部９ｂに当接しながら、位置Ａから位置Ｂまで直線移動する。そして、これに連動してピン部材５ｃが係合部６ｃ、６ｄ内を往復移動する。開閉体４を閉じ動作させるときには、当接部１１ａ、１１ｂ及びピン部材５ｃは開き動作時とは逆に移動する。このとき、第一実施形態と同様に、開閉体４の開閉体離間側端辺４ａ及び開閉体近接側端辺４ｂの両方が隣接部材７に干渉しないので、開閉体４と隣接部材７との隙間を少なくすることができる。   As shown in FIG. 4, when the opening / closing body 4 is opened, the contact portion 11a contacts the guide portion 9a, and the contact portion 11b contacts the guide portion 9b while moving linearly from position A to position B. . In conjunction with this, the pin member 5c reciprocates in the engaging portions 6c and 6d. When the opening / closing body 4 is closed, the contact portions 11a and 11b and the pin member 5c move in the opposite direction to that during the opening operation. At this time, similarly to the first embodiment, both the opening / closing body separating side edge 4a and the opening / closing body proximity side edge 4b of the opening / closing body 4 do not interfere with the adjacent member 7, so that the opening / closing body 4 and the adjacent member 7 The gap can be reduced.

図５乃至図７は、従来の画像形成装置及び本発明機構を適用した他の画像形成装置１を示している。図５（ｄ）は、本発明機構を適用したプリンタ１のトップカバー４が全開姿勢のときに、プリンタ１を開閉体軸方向からみた場合の模式図であり、図５（ｃ）は、従来のプリンタのトップカバーが全開姿勢のときの模式図である。図５（ｃ）、（ｄ）に示すように、本発明機構を適用したプリンタ１のトップカバー４は、プリンタ１の側面から突出しない状態で開閉動作される。同様に、図６（ｄ）は、本発明機構を適用した複写機１のフロントカバー４が全開姿勢のときの模式図であり、図７（ｄ）は、本発明機構を適用した複写機１の自動原稿送り装置４が全開姿勢のときの模式図である。   5 to 7 show a conventional image forming apparatus and another image forming apparatus 1 to which the mechanism of the present invention is applied. FIG. 5D is a schematic diagram of the printer 1 viewed from the opening / closing body axis direction when the top cover 4 of the printer 1 to which the mechanism of the present invention is applied is in the fully open posture. FIG. It is a schematic diagram when the top cover of the printer of FIG. As shown in FIGS. 5 (c) and 5 (d), the top cover 4 of the printer 1 to which the mechanism of the present invention is applied is opened and closed without protruding from the side surface of the printer 1. Similarly, FIG. 6 (d) is a schematic view when the front cover 4 of the copying machine 1 to which the mechanism of the present invention is applied is in a fully open position, and FIG. 7 (d) is a copying machine 1 to which the mechanism of the present invention is applied. FIG. 6 is a schematic diagram when the automatic document feeder 4 is in a fully open posture.

尚、第一及び第二実施形態では、ピン部材５を開閉体４に、係合部６を画像形成装置本体２に設けたが、これに限るものではなく、逆に、ピン部材５を画像形成装置本体２に、係合部６を開閉体４に設けても良い。   In the first and second embodiments, the pin member 5 is provided in the opening / closing body 4 and the engaging portion 6 is provided in the image forming apparatus main body 2. However, the present invention is not limited to this. The engaging portion 6 may be provided in the opening / closing body 4 in the forming apparatus main body 2.

本発明に係る画像形成装置の開閉機構の第一実施形態の斜視図1 is a perspective view of a first embodiment of an opening / closing mechanism of an image forming apparatus according to the present invention. 本発明に係る画像形成装置の開閉機構の第一実施形態の動作図Operational diagram of first embodiment of opening / closing mechanism of image forming apparatus according to the present invention 本発明に係る画像形成装置の開閉機構の第二実施形態の構成図Configuration diagram of second embodiment of opening / closing mechanism of image forming apparatus according to the present invention 本発明に係る画像形成装置の開閉機構の第二実施形態の動作図Operational diagram of second embodiment of opening / closing mechanism of image forming apparatus according to the present invention 本発明に係る画像形成装置の開閉機構の別実施形態を示す模式図Schematic diagram showing another embodiment of the opening and closing mechanism of the image forming apparatus according to the present invention. 本発明に係る画像形成装置の開閉機構の別実施形態を示す模式図Schematic diagram showing another embodiment of the opening and closing mechanism of the image forming apparatus according to the present invention. 本発明に係る画像形成装置の開閉機構の別実施形態を示す模式図Schematic diagram showing another embodiment of the opening and closing mechanism of the image forming apparatus according to the present invention.

符号の説明Explanation of symbols

１ 画像形成装置
２ 本体
３ 開口部
４ 開閉体
５ ピン部材
６ 係合部
８ ガイド板
９ ガイド部
１０ 固定板
１２ 固定孔 DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Main body 3 Opening part 4 Opening / closing body 5 Pin member 6 Engagement part 8 Guide plate 9 Guide part 10 Fixing plate 12 Fixing hole

Claims (4)

画像形成装置本体と、前記画像形成装置本体の開口部に備えられ、開閉動作される開閉体とを備えた画像形成装置の開閉機構であって、
前記画像形成装置本体と前記開閉体との一方の部材に設けられるピン部材と、他方の部材に設けられ、前記ピン部材がピン軸周りに回動可能且つ摺動可能に係合する係合部とを備え、
全閉姿勢における前記開閉体の開閉体延設方向端面に位置される開閉体離間側端と開閉体近接側端とに関して、前記開閉体の開閉動作時の軌跡が、前記開閉体の全閉姿勢及び全開姿勢の両姿勢で囲まれる領域内に設定されている画像形成装置の開閉機構。 An opening / closing mechanism for an image forming apparatus, comprising: an image forming apparatus main body; and an opening / closing body that is provided at an opening of the image forming apparatus main body and that is opened and closed.
A pin member provided on one member of the image forming apparatus main body and the opening / closing body, and an engagement portion provided on the other member and engaged with the pin member so as to be rotatable and slidable around the pin axis. And
With respect to the opening / closing body separating side end and the opening / closing body proximity side end positioned on the opening / closing body extending direction end surface of the opening / closing body in the fully closed posture, the locus during the opening / closing operation of the opening / closing body is the fully closed posture of the opening / closing body. And an opening / closing mechanism of the image forming apparatus set in a region surrounded by both the fully open postures. 開閉体に設けられるピン部材と、前記開閉体が開閉する開口部を備えた画像形成装置本体に設けられ、前記ピン部材がピン軸周りに回動可能且つ摺動可能に係合する係合部とを備え、
前記開閉体の全閉姿勢において、前記ピン部材の軸心位置が、開閉体表裏方向端面と、前記ピン軸に平行な開閉体軸方向及び前記開閉体表裏方向に直交する開閉体延設方向端面とから、共に開閉体表裏方向における幅の半分の位置とされ、
前記係合部が、前記開閉体延設方向端面に平行な前記画像形成装置本体の延設方向端面と、前記開閉体表裏方向端面に平行な前記画像形成装置本体の近接離間方向端面との両端面方向を二等分する方向に直線状に延びる直線状係合孔である画像形成装置の開閉機構。 An engaging portion that is provided in a main body of an image forming apparatus having a pin member provided on the opening / closing body and an opening that opens and closes the opening / closing body, and the pin member engages slidably and rotatably about the pin axis. And
In the fully closed posture of the opening / closing body, the axial center position of the pin member is the opening / closing body front / back direction end face, the opening / closing body axial direction parallel to the pin axis, and the opening / closing body extending direction end face perpendicular to the opening / closing body front / back direction. From the above, it is assumed that the opening / closing body is half the width in the front and back direction,
The engaging portion has both ends of an extending direction end face of the image forming apparatus main body parallel to the end face of the opening / closing body extending direction and an end face in the approaching / separating direction end face of the image forming apparatus main body parallel to the end face of the opening / closing body front / back side. An opening / closing mechanism for an image forming apparatus, which is a linear engagement hole that extends linearly in a direction that bisects the surface direction. 前記ピン部材の前記係合部に対する回動又は摺動に関して、
前記開閉体の開閉動作に連動して前記ピン部材の回動又は摺動を案内するガイド部を設けた請求項２記載の画像形成装置の開閉機構。 Regarding rotation or sliding of the pin member with respect to the engaging portion,
The opening / closing mechanism of the image forming apparatus according to claim 2, further comprising a guide portion that guides rotation or sliding of the pin member in conjunction with an opening / closing operation of the opening / closing body. 前記ピン軸に平行な前記画像形成装置本体の軸方向に一対並設されるガイド板を備えるとともに、
前記一対のガイド板に、それぞれ前記直線状係合孔が設けられている請求項３記載の画像形成装置の開閉機構。 A pair of guide plates arranged in parallel in the axial direction of the image forming apparatus main body parallel to the pin axis;
The image forming apparatus opening / closing mechanism according to claim 3, wherein the linear engagement holes are provided in the pair of guide plates, respectively.
JP2004147984A 2004-05-18 2004-05-18 Opening and closing mechanism of image forming apparatus Expired - Fee Related JP4599089B2 (en)

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JP2013255151A (en) * 2012-06-08 2013-12-19 Seiko Epson Corp Recording device
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009283747A (en) * 2008-05-23 2009-12-03 Seiko Epson Corp Rotating mechanism, drive bay, enclosure, and electronic apparatus
JP2012118170A (en) * 2010-11-30 2012-06-21 Kyocera Document Solutions Inc Image forming apparatus
JP2013059970A (en) * 2011-09-15 2013-04-04 Seiko Epson Corp Recording apparatus, and cover support structure therein
JP2013184360A (en) * 2012-03-07 2013-09-19 Konica Minolta Inc Cover opening and closing mechanism and image forming device
JP2013255151A (en) * 2012-06-08 2013-12-19 Seiko Epson Corp Recording device
JP2014017601A (en) * 2012-07-06 2014-01-30 Brother Ind Ltd Image processing apparatus
JP2014197049A (en) * 2013-03-29 2014-10-16 セイコーエプソン株式会社 Recorder and image reader
JP2016015425A (en) * 2014-07-02 2016-01-28 富士通フロンテック株式会社 Electronic device
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