JP5645227B6 - Document crimping plate opening and closing device - Google Patents

Description

この発明は、複写機、印刷機、ファクシミリ、スキャナー等の事務機器に用いて好適な原稿圧着板開閉装置に関するものである。   BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document pressure plate opening / closing device suitable for use in office equipment such as a copying machine, a printing machine, a facsimile machine, and a scanner.

複写機、印刷機、ファクシミリ、スキャナー等の事務機器の装置本体には、その装置本体の上面後部に対し原稿圧着板が原稿圧着板開閉装置を介して回動可能に取り付けられている。この原稿圧着板開閉装置は、一種のヒンジ機構であり、下記特許文献１に記載されたように、原稿圧着板をヒンジ軸まわりに回動可能に軸支して、装置本体の上面のコンタクトガラス面上に原稿圧着板を密着させることができると共に、そのコンタクトガラス上面を露出させることができる。原稿をコンタクトガラス面上にセットするには、原稿圧着板を回動させて（上方に開いて）コンタクトガラス面を露出（開放）させ、そのコンタクトガラスの面上に原稿を載置した後、原稿圧着板を回動させて（下方に閉じて）、原稿圧着板で原稿をコンタクトガラス面上に圧着させるものである。   A document crimping plate is attached to an apparatus main body of an office machine such as a copying machine, a printing machine, a facsimile machine, a scanner, or the like via a document crimping plate opening / closing device with respect to a rear upper surface of the device body. This document crimping plate opening / closing device is a kind of hinge mechanism, and as described in Patent Document 1 below, the document crimping plate is pivotally supported around the hinge axis so as to contact glass on the upper surface of the apparatus main body. The original pressing plate can be brought into close contact with the surface, and the upper surface of the contact glass can be exposed. To set the document on the contact glass surface, rotate the document crimping plate (open upward) to expose (open) the contact glass surface, place the document on the contact glass surface, The original cover is rotated (closed downward), and the original is pressed onto the contact glass surface with the original cover.

特開平１１−９５３３９号公開特許公報Japanese Patent Laid-Open No. 11-95339

上記公知構成の事務機器においては、原稿圧着板を開くと、当該原稿圧着板を装置本体へ開閉可能に取り付けている原稿圧着板開閉装置の内部構造、とくに取付部材の両側板間に取り付けた固定ピンの部分が外部へ露出することになる。しかるに、この固定ピンの部分には、スライダーのカム面との摺接を円滑にする潤滑用のグリスが塗布されていることから、コンタクトガラス上へ載置した原稿の端部がコンタクトガラスよりはみ出してグリスを塗布させた固定ピンに接触して汚してしまうという問題が生じた。この発明は上述した問題点を解決するためになされたものであり、その目的とするところは、原稿圧着板を開いて原稿をコンタクトガラス上に載置させた際に、当該原稿の端部がグリスを塗布させた固定ピンに接触して汚れてしまわないように工夫した、原稿圧着板開閉装置を提供せんとするにある。   In the office equipment having the above-mentioned publicly known configuration, when the original pressure plate is opened, the internal structure of the original pressure plate opening / closing device that attaches the original pressure plate to the main body of the device, particularly the fixing attached between the both side plates of the mounting member. The pin portion is exposed to the outside. However, since the grease for lubrication that makes the sliding contact with the cam surface of the slider smooth is applied to the fixed pin portion, the end portion of the document placed on the contact glass protrudes from the contact glass. As a result, there was a problem that the fixing pin to which the grease was applied was contacted and soiled. The present invention has been made to solve the above-described problems. The object of the present invention is to open the original pressure plate and place the original on the contact glass so that the end of the original is An object of the present invention is to provide a manuscript crimping plate opening / closing device that is devised so that it does not get dirty when it comes into contact with a fixing pin coated with grease.

前記目的を達成するためにこの発明の原稿圧着板開閉装置は、事務機器の装置本体へ取り付けられる底板とこの底板の両側より立設させたところの両側板を有する取付部材と、上板とこの上板の両側の一部より垂設されたところの下端部側に内側へ折り曲げた抱持片を有する両側板を有し、この両側板の抱持片を設けてない部分を前記取付部材の両側板の外側へ第１ヒンジピンを介して回動可能に連結して成る原稿圧着板を支持する支持部材と、前記原稿圧着板を取り付ける上板とこの上板の両側より垂設した両側板を有し、この両側板を前記支持部材の両側板の外側の自由端側へ第２ヒンジピンを介して前記支持部材の回動方向とは逆方向へ回動可能に連結したリフト部材と、前記取付部材の両側板の間に設けられた固定ピンと、前記リフト部材の両側板の間に設けられた作動ピンと、前記支持部材の両側板の自由端側に前記作動ピンの旋回軌跡に合わせて設けた湾曲溝と、一端部側を前記固定ピンに当接させ前記支持部材の前記両側板の間に前記抱持片に抱えられて摺動可能に設けられた第２スライダーと、その一端部側を前記作動ピンに当接し前記支持部材の両側板の間に前記抱持片に抱えられて摺動可能に設けられた第１スライダーと、前記第２スライダーと前記第１スライダーとの間に弾設された圧縮コイルスプリングとから成り、
前記第２スライダーは、前記固定ピン側に当該固定ピンのとくにコンタクトガラス側の軸方向を覆う幅を有する延出片と、この延出片の基部に続いて設けられた前記固定ピン側に暫時傾斜した傾斜部とこの傾斜部に続いて設けられた突部とこの突部に続いて設けられた凹部とを有するものとし、前記原稿圧着板の所定の開閉角度までは前記延出片が前記固定ピンのコンタクトガラス側を覆い、前記原稿圧着板を全開状態にした際には、前記支持部材の後部が前記取付部材側に当接して当該支持部材のそれ以上の回動を阻止し、前記第２スライダーが前記固定ピンより離れ前記当該第２スライダーの凹部が前記第１ヒンジピンと当接するように成したことを特徴とする。 In order to achieve the above-mentioned object, a document crimping plate opening / closing device of the present invention includes a bottom plate attached to a main body of an office machine, a mounting member having both side plates erected from both sides of the bottom plate, an upper plate, It has both side plates having holding pieces bent inwardly on the lower end portion side that is suspended from a part of both sides of the upper plate, and a portion of the both side plates not having the holding pieces is provided on the mounting member . a support member for supporting the original cover comprising pivotally connected to via a first hinge pin to the outer surfaces of the side plates, each side plate having vertically from both sides of the upper plate and the upper plate mounting said original cover A lift member that has both side plates connected to a free end outside the both side plates of the support member via a second hinge pin so as to be rotatable in a direction opposite to the rotation direction of the support member; a fixed pin provided between the two side plates of members, the riff An actuating pin provided between the two side plates of the members, is in contact with a curved groove provided in accordance with the turning locus of the operation pin to the free end side of the both side plates of the support member, one end portion side of the fixing pin A second slider that is held by the holding piece between the both side plates of the support member and is slidable, and one end side of the second slider is in contact with the operating pin, and the holding piece is between the both side plates of the support member. A first slider that is slidably provided and a compression coil spring that is provided between the second slider and the first slider,
The second slider has an extension piece having a width that covers an axial direction of the fixing pin, particularly the contact glass side, on the fixing pin side, and is temporarily attached to the fixing pin side that is provided following the base of the extension piece. It has an inclined part, a protrusion provided subsequent to the inclined part, and a concave part provided subsequent to the protrusion, and the extension piece extends to a predetermined opening / closing angle of the original cover. When the contact glass side of the fixing pin is covered and the original pressing plate is fully opened, the rear portion of the support member comes into contact with the mounting member side to prevent further rotation of the support member, The second slider is separated from the fixed pin, and the concave portion of the second slider is in contact with the first hinge pin .

その際に本発明は、取付部材の両側板の外側に支持部材の両側板が第１ヒンジピンによって回動可能に連結されると共に、取付部材の両側板の側部には、湾曲凹部が設けられ、原稿圧着板を閉じた際に湾曲凹部へ前記支持部材の抱持片の側が嵌入するように構成されていることを特徴とする。   In this case, according to the present invention, both side plates of the support member are rotatably connected to the outside of the both side plates of the mounting member by the first hinge pins, and curved concave portions are provided on the side portions of the side plates of the mounting member. The holding member side of the support member is inserted into the curved concave portion when the original cover is closed.

上述したように、本発明によれば、固定ピンと摺接する第１カムスライダーを有する原稿圧着板開閉装置において、コンタクトガラス上へ載置した原稿の端部が固定ピンに接触するのを防止する延出片を第２スライダーの下部側から固定ピンより前側に突出させて設けたことにより、原稿圧着板を開いた時に、固定ピンより前側に突出した延出片によって、コンタクトガラス上へ載置した原稿の端部がグリスを附着させた固定ピンの部分に接触して汚れてしまうのを防止することができ、原稿圧着板の全開成時には、支持部材の後端部が取付部材に当接して所定角度以上の回動を阻止し、その際に第２スライダーの傾斜部は固定ピンから離れ、当該第２スライダーの凹部が前記第１ヒンジピンと当接するものである。 As described above, according to the present invention, in the document crimping plate opening / closing device having the first cam slider that is in sliding contact with the fixed pin, the extension of the document placed on the contact glass is prevented from coming into contact with the fixed pin. Since the protruding piece is provided so as to protrude from the lower side of the second slider to the front side of the fixing pin, when the document crimping plate is opened, the protruding piece is placed on the contact glass by the extending piece protruding to the front side of the fixing pin. It is possible to prevent the edge of the document from coming into contact with the fixed pin portion to which the grease is attached and get dirty, and when the document crimping plate is fully opened, the rear end of the support member is in contact with the mounting member. The rotation of a predetermined angle or more is prevented, and at this time, the inclined portion of the second slider is separated from the fixed pin, and the concave portion of the second slider comes into contact with the first hinge pin.

この発明の原稿圧着板開閉装置の一例を示す側面図である。It is a side view which shows an example of the original document crimping plate opening / closing apparatus of this invention. この発明の原稿圧着板開閉装置の一例を示す側断面図である。It is side sectional drawing which shows an example of the original document crimping plate opening / closing apparatus of this invention. この発明の原稿圧着板開閉装置の一例を示す側面図である。It is a side view which shows an example of the original document crimping plate opening / closing apparatus of this invention. この発明の原稿圧着板開閉装置の一例を示す側断面図である。It is side sectional drawing which shows an example of the original document crimping plate opening / closing apparatus of this invention. この発明の原稿圧着板開閉装置の一例を示す側面図である。It is a side view which shows an example of the original document crimping plate opening / closing apparatus of this invention. この発明の原稿圧着板開閉装置の一例を示す側断面図である。It is side sectional drawing which shows an example of the original document crimping plate opening / closing apparatus of this invention. この発明の原稿圧着板開閉装置の一例を示す側断面図である。It is side sectional drawing which shows an example of the original document crimping plate opening / closing apparatus of this invention. この発明の取付部材の一例を示す図で、（ａ）は側面図、（ｂ）は平面図、（ｃ）は背面図である。It is a figure which shows an example of the attachment member of this invention, (a) is a side view, (b) is a top view, (c) is a rear view. この発明の第２スライダーの一例を示す図で、（ａ）は側面図、（ｂ）は背面図、（ｃ）は正面図、（ｄ）は平面図である。It is a figure which shows an example of the 2nd slider of this invention, (a) is a side view, (b) is a rear view, (c) is a front view, (d) is a top view.

以下、この発明の原稿圧着板開閉装置を添付図面に基づいて詳述する。   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A document pressure plate opening / closing device according to the present invention will be described in detail below with reference to the accompanying drawings.

図１〜図７はこの発明の原稿圧着板開閉装置の一例を示す図である。この発明の原稿圧着板開閉装置は、複写機、印刷機、ファクシミリ、スキャナー等の事務機器の装置本体に、その装置本体の上面に対し原稿圧着板を回動可能に取り付ける一種のヒンジ機構である。この発明の原稿圧着板開閉装置は、図１〜図７に示すように、装置本体２に取り付けられる取付部材４と、その取付部材４に回動自在に連結され、原稿圧着板３に取り付けられてこれを支持する支持部材５とを備え、支持部材５が、通常使用時、原稿圧着板３を装置本体２の上面に接触する閉位置から最大使用開放位置まで回動し、かつ、支持部材５が、メンテナンス時、さらに最大使用開放位置から最大開放位置まで回動するものである。   FIGS. 1 to 7 are views showing an example of a document crimping plate opening / closing device of the present invention. The document crimping plate opening and closing device of the present invention is a kind of hinge mechanism that rotatably attaches the document crimping plate to the upper surface of the apparatus main body of an office machine such as a copying machine, a printing machine, a facsimile machine, and a scanner. . As shown in FIGS. 1 to 7, the document crimping plate opening / closing device of the present invention is attached to the document crimping plate 3, and is attached to the device body 2 and is pivotally connected to the mounting member 4. And a support member 5 that supports the document pressing plate 3. The support member 5 rotates the document pressing plate 3 from the closed position in contact with the upper surface of the apparatus main body 2 to the maximum use open position during normal use. 5 is the one that further rotates from the maximum use open position to the maximum open position during maintenance.

取付部材４は、図８に示すように、装置本体２に取り付けられる底板４１と、底板４１の両側端部からそれぞれ底板４１に対して直交する方向（略直交する方向も含む）に延びる両側板４２と、底板４１の一端部（後端部）から底板４１に対して直交する方向（略直交する方向も含む）に延びる略矩形状の後板４３と、さらに図１乃至図７にも示したように、両側板４２の一側部に形成された湾曲凹部４４と、から構成され、両側板４２の後板４３側にストッパー部４８が設けられている。   As shown in FIG. 8, the attachment member 4 includes a bottom plate 41 attached to the apparatus main body 2 and both side plates extending from both side end portions of the bottom plate 41 in a direction orthogonal to the bottom plate 41 (including a substantially orthogonal direction). 42, a substantially rectangular rear plate 43 extending from one end portion (rear end portion) of the bottom plate 41 in a direction orthogonal to the bottom plate 41 (including a substantially orthogonal direction), and also shown in FIGS. As described above, the concave recess 44 is formed on one side of the both side plates 42, and a stopper portion 48 is provided on the rear plate 43 side of the both side plates 42.

底板４１は、略矩形状に形成され、ビス等で装置本体２に取り付けるための取付孔４５が設けられている。側板４２は、略Ｌ字状に形成され、底板４１に対して直交する方向（略直交する方向も含む）に立設された取付片４２ａの先端部（上部）に第１ヒンジピン孔４６が設けられている。取付片４２ａの第１ヒンジピン孔４６より底板４１側（下方）で、かつ、内側（前方）に偏した位置には固定ピン孔４７が設けられている。両取付片４２ａの固定ピン孔４７に固定ピン１３が挿通されている。また、取付片４２ａの先端面は、第１ヒンジピン孔４６と固定ピン孔４７とを結ぶ直線と略平行に延びる傾斜部４２ｂとして形成されている。   The bottom plate 41 is formed in a substantially rectangular shape, and is provided with an attachment hole 45 for attaching to the apparatus main body 2 with a screw or the like. The side plate 42 is formed in a substantially L-shape, and a first hinge pin hole 46 is provided at the tip (upper part) of the mounting piece 42a that is erected in a direction orthogonal to the bottom plate 41 (including a direction substantially orthogonal). It has been. A fixing pin hole 47 is provided at a position biased toward the bottom plate 41 side (downward) and inward (frontward) from the first hinge pin hole 46 of the mounting piece 42a. The fixing pin 13 is inserted into the fixing pin hole 47 of both the attachment pieces 42a. Further, the front end surface of the mounting piece 42 a is formed as an inclined portion 42 b that extends substantially parallel to a straight line connecting the first hinge pin hole 46 and the fixing pin hole 47.

支持部材５は、図１〜図７に示すように、上板５１と、上板５１の両側端部からそれぞれ上板５１に対して直交する方向（略直交する方向も含む）に垂設された両側板５２と、側板５２の先端部を互いに対向する側に９０°折り曲げてなる抱持片５３と、から構成されている。上板５１の他端部（前端部）は、側板５２と反対方向に折り曲げて成る当接部５５が設けられている。   As shown in FIGS. 1 to 7, the support member 5 is suspended from the upper plate 51 and from both side end portions of the upper plate 51 in directions perpendicular to the upper plate 51 (including directions substantially perpendicular to each other). The both side plates 52 and the holding pieces 53 formed by bending the front end portions of the side plates 52 to the sides facing each other by 90 °. The other end portion (front end portion) of the upper plate 51 is provided with a contact portion 55 that is bent in the opposite direction to the side plate 52.

両側板５２の一端部（後端部）には、第２ヒンジピン１２が挿通される第２ヒンジピン孔（図示せず）が設けられていると共に、後述する作動ピン１４が入り込む切欠部５４が設けられている。両側板５２の他端部（前端部）には、第１ヒンジピン挿通孔（図示せず）が設けられている。両側板５２の第１ヒンジピン挿通孔と取付部材４の第１ヒンジピン孔４６とが軸合わせされてこれらの孔に第１ヒンジピン１１が挿通されることによって、支持部材５が取付部材４に第１ヒンジピン１１を軸に回動自在に連結されている。   A first hinge pin hole (not shown) through which the second hinge pin 12 is inserted is provided at one end portion (rear end portion) of the both side plates 52, and a notch portion 54 into which an operation pin 14 to be described later enters is provided. It has been. A first hinge pin insertion hole (not shown) is provided at the other end (front end) of the side plates 52. The first hinge pin insertion hole of the side plates 52 and the first hinge pin hole 46 of the attachment member 4 are aligned with each other, and the first hinge pin 11 is inserted into these holes, so that the support member 5 is first attached to the attachment member 4. The hinge pin 11 is pivotally connected about an axis.

支持部材５は、原稿圧着板３に取り付けられるが、原稿圧着板３に回動自在に取り付けられることが好ましい。このように、支持部材５が原稿圧着板３に回動自在に取り付けられることにより、厚さが厚い原稿も装置本体２の上面に安定して密着させることができる。また、支持部材５は、装置本体２に直接取り付けてもよいが、リフト部材６を介して原稿圧着板３に取り付けられることが特に好ましい。   The support member 5 is attached to the original cover 3, but is preferably attached to the original cover 3 so as to be rotatable. As described above, the supporting member 5 is pivotally attached to the document pressing plate 3 so that a thick document can be stably adhered to the upper surface of the apparatus main body 2. Further, the support member 5 may be directly attached to the apparatus main body 2, but it is particularly preferable that the support member 5 is attached to the original cover 3 via the lift member 6.

リフト部材６は、原稿圧着板３の後端側にビス等で取り付けられる上板６１と、この上板６１の両端部からそれぞれ上板６１に対して直交する方向（略直交する方向も含む）に垂設された両側板６２とから成る略コ字状のものであって、支持部材５を覆うように形成されている。リフト部材６の一端部（後端部）の中央より上板６１側の箇所には第２ヒンジピン挿通孔（図示せず）が設けられていると共に、第２ヒンジピン挿通孔より他端部側で、かつ、中央より上板６１側とは反対側の箇所には作動部材、例えば作動ピン１４が挿通される作動ピン孔（図示せず）が設けられている。両側板６２の作動ピン孔に作動ピン１４が挿通されて固定されている。リフト部材６の両側板６２の第２ヒンジピン挿通孔と支持部材５の両側板５２の第２ヒンジピン孔とが軸合わせされてこれらの孔に第２ヒンジピン１２が挿通されることによって、リフト部材６が支持部材５の回動方向とは逆方向へ回動するように第２ヒンジピン１２によって連結されている。   The lift member 6 has an upper plate 61 attached to the rear end side of the document pressing plate 3 with screws or the like, and directions orthogonal to the upper plate 61 from both ends of the upper plate 61 (including directions substantially orthogonal to each other). And is formed so as to cover the support member 5. A second hinge pin insertion hole (not shown) is provided at a position closer to the upper plate 61 than the center of one end (rear end) of the lift member 6, and on the other end side from the second hinge pin insertion hole. In addition, an operating pin hole (not shown) through which an operating member, for example, the operating pin 14 is inserted, is provided at a position opposite to the upper plate 61 side from the center. The operating pin 14 is inserted and fixed in the operating pin hole of the both side plates 62. The second hinge pin insertion holes of the side plates 62 of the lift member 6 and the second hinge pin holes of the side plates 52 of the support member 5 are aligned with each other, and the second hinge pins 12 are inserted into these holes, whereby the lift member 6 is inserted. Are connected by the second hinge pin 12 so as to rotate in the direction opposite to the direction of rotation of the support member 5.

支持部材５内には、一対の第１スライダー３１と第２スライダー３２が摺動可能に収装されている。この一対の第１スライダー３１と第２スライダー３２は、断面矩形の有底筒体状に形成されている。第１スライダー３１と第２スライダー３２は、互いの開口部が向き合うように支持部材５内にそれぞれ抱持片５３に抱えられることによって個別に摺動自在に収装されている。この一対の第１スライダー３１と第２スライダー３２との間に圧縮コイルスプリング２１が設けられている。すなわち、第１スライダー３１と第２スライダー３２の凹状の内部が圧縮コイルスプリング２１を収容するスプリング収容部３１ｃ、３２ｃとして形成されている。圧縮コイルスプリング２１は、１個でも２個以上でもよく、例えば２個並列、或は重合して設けられ、一対の第１スライダー３１と第２スライダー３２をそれぞれ互いに離間する方向に付勢するものである。   A pair of first slider 31 and second slider 32 are slidably accommodated in the support member 5. The pair of first slider 31 and second slider 32 are formed in a bottomed cylindrical shape having a rectangular cross section. The first slider 31 and the second slider 32 are individually slidably accommodated in the support member 5 by the holding pieces 53 so that the openings of the first slider 31 and the second slider 32 face each other. A compression coil spring 21 is provided between the pair of first slider 31 and second slider 32. That is, the concave insides of the first slider 31 and the second slider 32 are formed as spring accommodating portions 31 c and 32 c that accommodate the compression coil spring 21. One or more compression coil springs 21 may be provided. For example, two compression coil springs 21 are provided in parallel or overlapped to urge the pair of first slider 31 and second slider 32 in directions away from each other. It is.

一対の第１スライダー３１と第２スライダー３２は、取付部材４の底板４１と支持部材５（上板５１）が略平行になっているとき（例えばこの発明の原稿圧着板開閉装置１を複写機等に取り付けた場合において装置本体２の上面のコンタクトガラス２ａ面上に原稿圧着板３を密着させたとき（原稿圧着板密着時））、支持部材５内に嵌合される長さで形成されている。   The pair of first slider 31 and second slider 32 is provided when the bottom plate 41 of the mounting member 4 and the support member 5 (upper plate 51) are substantially parallel (for example, the original pressure plate opening / closing device 1 of the present invention is used as a copying machine). When the original press plate 3 is brought into close contact with the contact glass 2a surface of the upper surface of the apparatus main body 2 (when the original press plate is in close contact), the length is fitted into the support member 5. ing.

先端部側の第１スライダー３１の底面である閉塞面３１ａの外表面は平坦面に形成されている。この閉塞面３１ａが圧縮コイルスプリング２１の付勢力によって作動ピン１４を押圧して、支持部材５とリフト部材６とが重なり合うようになっている。
すなわち、圧縮コイルスプリング２１の付勢力によってリフト部材６の上板６１が支持部材５の当接部５５に当接して、支持部材５の上板５１とリフト部材６の上板６１とが略平行で、かつ近接するようになっている。 The outer surface of the closing surface 31a, which is the bottom surface of the first slider 31 on the tip side, is formed as a flat surface. The closing surface 31 a presses the operating pin 14 by the urging force of the compression coil spring 21 so that the support member 5 and the lift member 6 overlap each other.
That is, the upper plate 61 of the lift member 6 comes into contact with the contact portion 55 of the support member 5 by the urging force of the compression coil spring 21, and the upper plate 51 of the support member 5 and the upper plate 61 of the lift member 6 are substantially parallel. And it comes to be close.

後端部側の第２スライダー３２の閉塞面の外表面の略中央部には、図１〜図７、図９に示すように、突部３３が設けられている。この突部３３は、支持部材５の上板５１に略平行に延びて形成されている。突部３３の抱持片５３側は漸次傾斜された傾斜部３４として形成され、背板５１側には凹部３２ａが形成されている。原稿圧着板密着時、突部３３が固定部材例えば固定ピン１３に当接し、リフト部材６が第２ヒンジピン１２を軸に回動することによって、固定ピン１３が当接する箇所が突部３３から傾斜部３４に徐々に摺動する。この固定ピン１３の外周には通常潤滑用のグリスが塗布されているが、第２スライダー３２の下部側から前記固定ピン１３より前側に突出させて延出片３８が設けられている。 As shown in FIGS. 1 to 7 and FIG. 9, a protrusion 33 is provided at a substantially central portion of the outer surface of the closing surface of the second slider 32 on the rear end side. The protrusion 33 is formed to extend substantially parallel to the upper plate 51 of the support member 5. The holding piece 53 side of the protrusion 33 is formed as an inclined portion 34 that is gradually inclined, and a concave portion 32a is formed on the back plate 51 side. When the original pressure plate is in close contact, the protrusion 33 abuts on a fixing member, for example, the fixing pin 13, and the lift member 6 rotates about the second hinge pin 12, so that the place where the fixing pin 13 abuts is inclined from the protrusion 33. Gradually slide on the part 34. Usually, grease for lubrication is applied to the outer periphery of the fixing pin 13, but an extension piece 38 is provided so as to protrude from the lower side of the second slider 32 to the front side of the fixing pin 13.

装置本体２の上面のコンタクトガラス２ａ面上に原稿圧着板３が密着している状態（閉位置（図１及び図２参照））において支持部材５の、抱持片５３の部分が取付部材４の湾曲凹部４４内に嵌入し、延出片３８は固定ピン１３の回り、とくにコンタクトガラス２ａ側を覆っている。この状態から原稿圧着板３の手前側を手に持って、装置本体２の上面から離間する方向（上方）に第１ヒンジピン１１を軸に回動させると、固定ピン１３に当接する箇所が突部３３から傾斜部３４へと徐々に摺動すると共に、第２スライダー３２が圧縮コイルスプリング２１によって支持部材５内を後端部側へと押圧されて摺動し、圧縮コイルスプリング２１が徐々に伸びる。そして、原稿圧着板３が装置本体２の上面に対する最大使用開放位置になると（図３及び図４参照）、第２スライダー３２の両側に設けた突起部７１が、受け部７２の手前に落ち込む際のクリック感を原稿圧着板３を介して操作者の手に感じ取ることができる。勿論、ここのところはその他の公知構成の原稿圧着板回動規制機構（図示せず）によって規制しても良い。なお、図１〜図７、図９中、３８は延出片を示し、原稿圧着板３の最大使用開放角度において、図３と図４に示したように、延出片３８が、固定ピン１３のコンタクトガラス２ａ側の部分より前側に突出している。   In the state where the original cover 3 is in close contact with the contact glass 2a on the upper surface of the apparatus main body 2 (closed position (see FIGS. 1 and 2)), the holding piece 53 portion of the support member 5 is the mounting member 4. The extension piece 38 covers the fixed pin 13 and particularly the contact glass 2a side. If the front side of the original cover 3 is held in this state and the first hinge pin 11 is pivoted in the direction away from the upper surface of the apparatus body 2 (upward), the portion that comes into contact with the fixed pin 13 will protrude. The second slider 32 is pressed and slid by the compression coil spring 21 toward the rear end side by the compression coil spring 21, and the compression coil spring 21 gradually moves. extend. When the document pressing plate 3 reaches the maximum use open position with respect to the upper surface of the apparatus main body 2 (see FIGS. 3 and 4), the protrusions 71 provided on both sides of the second slider 32 fall before the receiving portion 72. Can be felt by the operator's hand through the original cover 3. Of course, this may be restricted by a document pressure plate rotation restricting mechanism (not shown) having other known configurations. 1 to 7 and 9, reference numeral 38 denotes an extending piece. As shown in FIGS. 3 and 4, the extending piece 38 is a fixing pin at the maximum use opening angle of the original cover 3. 13 protrudes to the front side from the contact glass 2a side portion.

原稿圧着板回動規制機構は、原稿圧着板３（支持部材５）の回動を規制するもので、原稿圧着板３の通常使用時における装置本体２の上面に対する最大使用開放角度を６０°〜７０°（略６０°〜略７０°）に規制するものである（図３及び図４参照）。また、原稿圧着板回動規制機構は、装置本体２の点検、修理等のメンテナンスを行う際にコンタクトガラス２ａを容易に取り外すことができるように、取付部材４の両側板に設けたストッパー部４８と支持部材５の断面Ｌ形状を呈した当接部５５によって、原稿圧着板３（支持部材５）の上面に対する最大開放角度を９０°に規制することができる最大開放機能を有している（図５及び図６参照）。尚、当接部５５は、これを支持部材５の他の個所としても良く、リフト部材６の側に設けても良い。また、原稿圧着板３の最大解放角度において、とくに図５に示したように、第２スライダー３２の凹部３２ａが第１ヒンジピン１１と当接し、第２スライダー３２の下降を阻止している。 The original pressure-bonding plate rotation restricting mechanism restricts the rotation of the original pressure-bonding plate 3 (support member 5), and the maximum use opening angle with respect to the upper surface of the apparatus main body 2 when the original pressure-bonding plate 3 is normally used is 60 ° to 60 °. It is restricted to 70 ° (approximately 60 ° to approximately 70 °) (see FIGS. 3 and 4). Further, the document pressing plate rotation restricting mechanism is provided with stopper portions 48 provided on both side plates of the mounting member 4 so that the contact glass 2a can be easily removed when performing maintenance such as inspection and repair of the apparatus main body 2. And the contact portion 55 having the L-shaped cross section of the support member 5 has a maximum opening function capable of regulating the maximum opening angle with respect to the upper surface of the original cover 3 (support member 5) to 90 ° ( (See FIGS. 5 and 6). The abutting portion 55 may be another part of the support member 5 or may be provided on the lift member 6 side. Further, at the maximum release angle of the original cover 3, as shown in FIG. 5 in particular, the concave portion 32 a of the second slider 32 is in contact with the first hinge pin 11 to prevent the second slider 32 from being lowered.

トルク発生手段７は、支持部材５に作用するトルクを大きくできれば特に限定されず、例えば、弾性部材である前記の圧縮コイルスプリング２１と、第２スライダー３２に設けられた突起部７１と、取付部材４に設けられた受け部７２とから構成されている。   The torque generating means 7 is not particularly limited as long as the torque acting on the support member 5 can be increased. For example, the compression coil spring 21 that is an elastic member, the protrusion 71 provided on the second slider 32, and an attachment member. 4 and a receiving portion 72 provided in the main body 4.

突起部７１は、第２スライダー３２の閉塞面の外表面の両側部が中央部より窪んだ段状に形成され、この両側段部３２ｂの略中央部に設けられている。突起部７１は、例えば略半円状に形成されている。受け部７２は、取付部材４の取付片４２ａの傾斜部４２ｂの略中央部に凸状に形成されており、圧縮コイルスプリング２１の付勢力によって、支持部材５が最大使用開放位置から最大開放位置までの間に位置されているときに、突起部７１が受け部７２に当接して押圧されるようになっている（図３〜図６参照）。   The protruding portion 71 is formed in a step shape in which both side portions of the outer surface of the closing surface of the second slider 32 are recessed from the center portion, and is provided in a substantially central portion of the both side step portions 32b. The protrusion 71 is formed in a substantially semicircular shape, for example. The receiving portion 72 is formed in a convex shape substantially at the center of the inclined portion 42 b of the mounting piece 42 a of the mounting member 4, and the support member 5 is moved from the maximum use open position to the maximum open position by the urging force of the compression coil spring 21. The protrusion 71 comes into contact with and is pressed against the receiving portion 72 (see FIGS. 3 to 6).

このように、圧縮コイルスプリング２１の付勢力によって突起部７１が受け部７２に当接して押圧されることにより、支持部材５（原稿圧着板３）が最大開放位置（図５及び図６参照）から最大使用開放位置（図３及び図４参照）へと回動するとき、支持部材５（原稿圧着板３）に作用するトルクが大きくなる。従って、この発明の原稿圧着板開閉装置１は、原稿圧着板３が最大開放位置から最大使用開放位置へと倒れる際の速度を緩和することができる。   Thus, the protrusion 71 is brought into contact with and pressed against the receiving portion 72 by the urging force of the compression coil spring 21, so that the support member 5 (document pressing plate 3) is at the maximum open position (see FIGS. 5 and 6). The torque acting on the support member 5 (document pressing plate 3) becomes large when rotating from the maximum use release position (see FIGS. 3 and 4). Therefore, the document crimping plate opening / closing device 1 of the present invention can reduce the speed when the document crimping plate 3 falls from the maximum open position to the maximum use open position.

また、第２スライダー３２の両側段部３２ｂの支持部材５の上板５１側には、湾曲状に窪んだ凹部３６が設けられている。この凹部３６は、取付部材４の取付片４２ａの先端部が面接触する凹状に形成されている。この凹部３６は、支持部材５（原稿圧着板３）が最大開放位置（図５及び図６参照）に達したとき、取付片４２ａの先端部が面接触するように形成されている。これにより、支持部材５（原稿圧着板３）が最大使用開放位置（図３及び図４参照）から最大開放位置（図５及び図６参照）へと回動したとき、取付片４２ａの先端部が面接触するので、支持部材５（原稿圧着板３）が安定した状態で立たせることができる。   In addition, a concave portion 36 that is recessed in a curved shape is provided on the side of the upper plate 51 of the support member 5 of the side step portions 32 b of the second slider 32. The recess 36 is formed in a concave shape in which the tip of the mounting piece 42 a of the mounting member 4 is in surface contact. The recess 36 is formed so that the tip of the mounting piece 42a comes into surface contact when the support member 5 (original pressure plate 3) reaches the maximum open position (see FIGS. 5 and 6). As a result, when the support member 5 (document pressing plate 3) is rotated from the maximum use open position (see FIGS. 3 and 4) to the maximum open position (see FIGS. 5 and 6), the tip of the mounting piece 42a. Because of the surface contact, the support member 5 (original pressure bonding plate 3) can stand in a stable state.

また、この発明の原稿圧着板開閉装置１は、厚さに関係なく原稿を装置本体２の上面に安定して密着させることができる。   Further, the original cover 1 according to the present invention can stably adhere the original to the upper surface of the apparatus main body 2 regardless of the thickness.

すなわち、圧縮コイルスプリング２１の付勢力によってリフト部材６の上板６１が支持部材５の当接部５５に当接して、支持部材５の上板５１とリフト部材６の上板６１とが略平行で、かつ近接するので、リフト部材６の後端部が下方に回動することがない。このため、原稿圧着板３を持ち上げて装置本体２の上面のコンタクトガラス２ａ面に原稿を載置する場合、通常、原稿圧着板３のリフト部材６が取り付けられている箇所とは反対側の端部又はその近傍等に設けられている把持部を持って原稿圧着板３を上方に持ち上げると、原稿圧着板３は第１ヒンジピン１１を軸にのみ回動してコンタクトガラス２ａ面が外部に露出する。その露出したコンタクトガラス２ａの面上に原稿を載置する。この際に原稿の端部が固定ピン１３の側の方へはみ出しても、延出片３８によってグリスが塗布されている固定ピン１３に接触することを防止できる。   That is, the upper plate 61 of the lift member 6 comes into contact with the contact portion 55 of the support member 5 by the urging force of the compression coil spring 21, and the upper plate 51 of the support member 5 and the upper plate 61 of the lift member 6 are substantially parallel. And since it adjoins, the rear-end part of the lift member 6 does not rotate below. Therefore, when the original cover 3 is lifted and the original is placed on the surface of the contact glass 2 a on the upper surface of the apparatus main body 2, the end of the original cover 3 opposite to the position where the lift member 6 is usually attached. When the document crimping plate 3 is lifted upward by holding a grip portion provided in the vicinity thereof or the like, the document crimping plate 3 rotates only about the first hinge pin 11 and the contact glass 2a surface is exposed to the outside. To do. A document is placed on the exposed surface of the contact glass 2a. At this time, even if the end portion of the document protrudes toward the fixing pin 13, it can be prevented that the extension piece 38 contacts the fixing pin 13 to which the grease is applied.

載置後、持ち上げた原稿圧着板３を降ろすと、原稿圧着板３はコンタクトガラス２ａ面と接触する方向に第１ヒンジピン１１を軸に回動する（下方に移動する）。このとき、圧縮コイルスプリング２１の付勢力によってリフト部材６の上板６１が支持部材５の当接部５５に当接した状態のまま、つまり、原稿圧着板３（リフト部材６）が第２ヒンジピン１２を軸に回動することないまま、原稿圧着板３が移動する。   When the raised original cover 3 is lowered after placement, the original cover 3 rotates about the first hinge pin 11 in the direction of contact with the surface of the contact glass 2a (moves downward). At this time, the upper plate 61 of the lift member 6 is kept in contact with the contact portion 55 of the support member 5 by the biasing force of the compression coil spring 21, that is, the original cover 3 (lift member 6) is in the second hinge pin. The original cover 3 moves without rotating around the axis 12.

このとき、コンタクトガラス２ａ面に載置されている原稿が紙のように厚さが薄い場合には、原稿圧着板３は、紙に接触するときには面接触する。その結果、原稿の全体が原稿圧着板３に接触して原稿がコンタクトガラス２ａ面に押し付けられるので、原稿が安定してコンタクトガラス２ａ面に密着することになる。そして、この際に、原稿圧着板３によって押圧されることによって変形した原稿の端部が固定ピン１３側へはみ出しても、その端部は延出片３８によってグリスが塗布されている固定ピン１３に接触することがない。   At this time, when the document placed on the surface of the contact glass 2a is as thin as paper, the document crimping plate 3 comes into surface contact when contacting the paper. As a result, the entire document comes into contact with the document crimping plate 3 and the document is pressed against the surface of the contact glass 2a, so that the document is stably adhered to the surface of the contact glass 2a. At this time, even if the end portion of the document deformed by being pressed by the document pressing plate 3 protrudes to the fixing pin 13 side, the end portion of the fixing pin 13 to which grease is applied by the extending piece 38 is applied. There is no contact.

原稿が図７に示すように本のように厚さが厚い場合、原稿圧着板３を回動させる（下方に移動させる）と、原稿８０の支持部材５側の端部８０ａ又はその近傍に原稿圧着板３の支持部材５の近傍の一部が接触し、原稿８０の支持部材５側の端部とは反対側の端部と原稿圧着板３との間に空間が形成される。すなわち、把持部側の端部の原稿圧着板３は浮いた状態となる。その浮いている原稿圧着板３の例えば把持部側の端部近傍をコンタクトガラス２ａ面側に押圧すると、作動ピン１４が第１スライダー３１を第２スライダー３２側に押圧して圧縮コイルスプリング２１の付勢力に抗して第１スライダー３１が第２スライダー３２側に移動すると共に、原稿圧着板３（リフト部材６）が第２ヒンジピン１２を軸に回動する。すなわち、原稿８０の上部を覆うように原稿圧着板３が移動する。例えば、その原稿８０の上部が平坦面である場合には、この上部に原稿圧着板３が面接触する。よって、厚さが厚い原稿８０が安定してコンタクトガラス２ａ面に密着することになる。   When the original is as thick as a book as shown in FIG. 7, when the original pressing plate 3 is rotated (moved downward), the original 80 is located at or near the end 80 a on the support member 5 side of the original 80. A part of the pressure-bonding plate 3 near the support member 5 comes into contact, and a space is formed between the end of the document 80 opposite to the end on the support member 5 side and the document pressure-bonding plate 3. That is, the document pressing plate 3 at the end on the gripping portion side is in a floating state. When, for example, the vicinity of the gripping portion side end of the original document pressing plate 3 that is floating is pressed against the contact glass 2a surface side, the operating pin 14 presses the first slider 31 toward the second slider 32 and the compression coil spring 21 is pressed. The first slider 31 moves toward the second slider 32 against the urging force, and the original cover 3 (lift member 6) rotates about the second hinge pin 12. That is, the original cover 3 moves so as to cover the upper portion of the original 80. For example, when the upper part of the original 80 is a flat surface, the original cover 3 comes into surface contact with the upper part. Therefore, the thick original 80 is stably adhered to the contact glass 2a surface.

従って、この発明の原稿圧着板開閉装置１は、厚さに関係なく原稿を装置本体２の上面に安定して密着させることができる。この原稿が本のような厚物原稿であっても、原稿圧着板３の開閉時に延出片３８が固定ピン１３の外周を覆うので、厚物原稿の端部がグリスが附着している固定ピン１３に接触して汚れてしまうことはない。   Therefore, the document pressing plate opening / closing device 1 of the present invention can stably adhere the document to the upper surface of the apparatus body 2 regardless of the thickness. Even if the original is a thick original such as a book, the extension piece 38 covers the outer periphery of the fixing pin 13 when the original pressing plate 3 is opened and closed, so that the end of the thick original is fixed with grease. The pin 13 does not get dirty due to contact.

以上詳細に説明したようにこの発明は、簡単な構成で、とくに複写機の原稿自動送り装置付きの重量のある原稿圧着板開閉装置に実施して好適である。   As described above in detail, the present invention has a simple configuration, and is particularly suitable for application to a heavy document pressing plate opening / closing device equipped with an automatic document feeder of a copying machine.

１ 原稿圧着板開閉装置
２ 装置本体
２ａ コンタクトガラス
３ 原稿圧着板
４ 取付部材
５ 支持部材
６ リフト部材
７ トルク発生手段
１１ 第１ヒンジピン
１２ 第２ヒンジピン
１３ 固定ピン
１４ 作動ピン
２１ 圧縮コイルスプリング
３１ 第１スライダー
３２ 第２スライダー
３８ 延出片
４１ 底板
４２ 両側板
４４ 湾曲凹部
５１ 上板
５２ 両側板
５３ 抱持片
６１ 上板
６２ 両側板
７１ 突起部
７２ 受け部 DESCRIPTION OF SYMBOLS 1 Document crimping plate opening / closing device 2 Apparatus main body 2a Contact glass 3 Document crimping plate 4 Mounting member 5 Support member 6 Lift member 7 Torque generating means 11 1st hinge pin 12 2nd hinge pin 13 Fixing pin 14 Actuation pin 21 Compression coil spring 31 1st Slider 32 Second slider 38 Extension piece 41 Bottom plate 42 Both side plates 44 Curved recess 51 Upper plate 52 Both side plates 53 Holding piece 61 Upper plate 62 Both side plates 71 Projection portion 72 Receiving portion

Claims (2)

事務機器の装置本体へ取り付けられる底板とこの底板の両側より立設させたところの両側板を有する取付部材と、上板とこの上板の両側の一部より垂設されたところの下端部側に内側へ折り曲げた抱持片を有する両側板を有し、この両側板の抱持片を設けてない部分を前記取付部材の両側板の外側へ第１ヒンジピンを介して回動可能に連結して成る原稿圧着板を支持する支持部材と、前記原稿圧着板を取り付ける上板とこの上板の両側より垂設した両側板を有し、この両側板を前記支持部材の両側板の外側の自由端側へ第２ヒンジピンを介して前記支持部材の回動方向とは逆方向へ回動可能に連結したリフト部材と、前記取付部材の両側板の間に設けられた固定ピンと、前記リフト部材の両側板の間に設けられた作動ピンと、前記支持部材の両側板の自由端側に前記作動ピンの旋回軌跡に合わせて設けた湾曲溝と、一端部側を前記固定ピンに当接させ前記支持部材の前記両側板の間に前記抱持片に抱えられて摺動可能に設けられた第２スライダーと、その一端部側を前記作動ピンに当接し前記支持部材の両側板の間に前記抱持片に抱えられて摺動可能に設けられた第１スライダーと、前記第２スライダーと前記第１スライダーとの間に弾設された圧縮コイルスプリングとから成り、
前記第２スライダーは、前記固定ピン側に当該固定ピンのとくにコンタクトガラス側の軸方向を覆う幅を有する延出片と、この延出片の基部に続いて設けられた前記固定ピン側に暫時傾斜した傾斜部とこの傾斜部に続いて設けられた突部とこの突部に続いて設けられた凹部とを有するものとし、前記原稿圧着板の所定の開閉角度までは前記延出片が前記固定ピンのコンタクトガラス側を覆い、前記原稿圧着板を全開状態にした際には、前記支持部材の後部が前記取付部材側に当接して当該支持部材のそれ以上の回動を阻止し、前記第２スライダーが前記固定ピンより離れ前記当該第２スライダーの凹部が前記第１ヒンジピンと当接するように成したことを特徴とする、原稿圧着板開閉装置。 A bottom plate attached to the main body of the office equipment, a mounting member having both side plates erected from both sides of the bottom plate, and a lower end side of the upper plate and suspended from a part of both sides of the upper plate to have the both side plates having a holding piece is bent inwardly, pivotally connecting the portion not provided with the retaining pieces of the side plates via the first hinge pin to the outer surfaces of the side plates of the mounting member supporting the original cover comprising Te and the support member, wherein an upper plate for attaching the original cover has two side plates that vertically from both sides of the upper plate, free of the side plates of the outer side plates of the support member a lifting member pivotally connected to the opposite direction to the rotation direction of the supporting member via a second hinge pin to the end side, a fixing pin provided between both side plates of the mounting member, the lift member an actuating pin provided between the side plates, said supporting member A curved groove provided in accordance with the turning locus of the operation pin to the free end side of the side plate, is faced to the retaining pieces to the sides plates of the support member are brought into contact with one end to the fixed pin sliding A second slider provided in a slidable manner, a first slider provided in a slidable manner while being held by the holding piece between both side plates of the support member with one end thereof abutting against the operating pin, and the first slider A compression coil spring provided between two sliders and the first slider,
The second slider has an extension piece having a width that covers an axial direction of the fixing pin, particularly the contact glass side, on the fixing pin side, and is temporarily attached to the fixing pin side that is provided following the base of the extension piece. It has an inclined part, a protrusion provided subsequent to the inclined part, and a concave part provided subsequent to the protrusion, and the extension piece extends to a predetermined opening / closing angle of the original cover. When the contact glass side of the fixing pin is covered and the original pressing plate is fully opened, the rear portion of the support member comes into contact with the mounting member side to prevent further rotation of the support member, 2. A document crimping plate opening and closing device , wherein the second slider is separated from the fixed pin, and a concave portion of the second slider is in contact with the first hinge pin . 前記取付部材の両側板の外側に前記支持部材の両側板が第１ヒンジピンによって回動可能に連結されると共に、前記取付部材の両側板の側部には、湾曲凹部が設けられ、前記原稿圧着板を閉じた際に前記湾曲凹部へ前記支持部材の抱持片の側が嵌入するように構成されていることを特徴とする、請求項１に記載の原稿圧着板開閉装置。   Both side plates of the support member are rotatably connected to the outside of the side plates of the mounting member by first hinge pins, and curved concave portions are provided on the side portions of the side plates of the mounting member, so 2. The document crimping plate opening / closing apparatus according to claim 1, wherein the holding member side of the support member is fitted into the curved concave portion when the plate is closed.

Images