JPH0941779A - Open-close section fulcrum mechanism of automatic document feeder - Google Patents
Open-close section fulcrum mechanism of automatic document feederInfo
- Publication number
- JPH0941779A JPH0941779A JP7218130A JP21813095A JPH0941779A JP H0941779 A JPH0941779 A JP H0941779A JP 7218130 A JP7218130 A JP 7218130A JP 21813095 A JP21813095 A JP 21813095A JP H0941779 A JPH0941779 A JP H0941779A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- hole
- fulcrum
- document feeder
- automatic document
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Hinge Accessories (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、静電写真式複写機、
ファクシミリあるいはプリンタ等の画像形成装置に装備
される自動原稿送り装置の開閉部支点機構に関するもの
である。BACKGROUND OF THE INVENTION This invention relates to an electrostatographic copying machine,
The present invention relates to an opening / closing unit fulcrum mechanism of an automatic document feeder installed in an image forming apparatus such as a facsimile or a printer.
【０００２】[0002]
【従来の技術】一般に、自動原稿送り装置（ＡＤＦ）に
おいて、画像形成装置本体の上部に設けられたの操作部
（以下ＡＤＦ操作部という）のケーシング（ハウジン
グ）に支点を設けることによりケーシングを回動可能に
してジャム処理性等を良くする必要がある。このため、
従来のケーシングの支点機構は、ケーシングの支点部位
にピン挿入孔を設け、この側面側の外方に位置する画像
形成装置本体のフレーム（側板）に設けた孔に前記フレ
ームの外側からピンを挿入し、さらに前記ピン挿入孔に
挿通された前記ピンをナット等の締め具を用いて締め付
ける（回り止めと抜け止め）ことにより支点機能を持た
せていた。2. Description of the Related Art Generally, in an automatic document feeder (ADF), a casing (housing) of an operating portion (hereinafter referred to as an ADF operating portion) provided on an upper portion of an image forming apparatus main body is provided with a fulcrum to rotate the casing. It is necessary to make it movable so as to improve the jam handling property. For this reason,
The conventional casing fulcrum mechanism is provided with a pin insertion hole at the fulcrum portion of the casing, and a pin is inserted from the outside of the frame into a hole (side plate) of the image forming apparatus body located on the outer side of the side surface. In addition, the pin inserted through the pin insertion hole is tightened by using a fastener such as a nut (rotation stopper and slip-out prevention) to provide a fulcrum function.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記のような
支点機構では、組み立て作業時に締付け等に用いる工具
が必要である。また、ケーシングを樹脂製の部材で構成
する場合は、この支点部材を支点部位に支持するために
必要なインサート金具等が割高であり、コスト的に問題
がある。さらに、前記ピンを用いると、ゆるみが発生し
たり、タッピングの場合はネジバカが発生するおそれが
ある。また、ゆるみの発生を防止するために、例えば、
前記ピンに突起を設け、この突起の係止孔を前記フレー
ムに穿設して回り止めを抑える必要がある。しかも、Ａ
ＤＦ操作部を駆動するためのＡＤＦモータを含む駆動部
が画像形成装置本体内に設置されているので、配線処理
が容易ではなかった。However, the fulcrum mechanism as described above requires a tool used for tightening during assembly work. Further, when the casing is made of a resin member, insert metal fittings and the like required to support the fulcrum member at the fulcrum portion are relatively expensive, which causes a cost problem. Furthermore, if the above-mentioned pin is used, loosening may occur, and screw tapping may occur in the case of tapping. In order to prevent loosening, for example,
It is necessary to provide a protrusion on the pin, and to prevent the detent by forming a locking hole for the protrusion in the frame. Moreover, A
Since the drive unit including the ADF motor for driving the DF operation unit is installed in the main body of the image forming apparatus, the wiring process is not easy.
【０００４】この発明は、上記問題に鑑みてなしたもの
で、その目的は、取付け作業および配線処理を容易にで
きる安価な自動原稿送り装置の開閉部支点機構を提供す
ることにある。The present invention has been made in view of the above problems, and an object thereof is to provide an inexpensive opening / closing part fulcrum mechanism of an automatic document feeder which facilitates mounting work and wiring processing.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、この発明は、画像形成装置本体の上部に上方に転回
自在に設けられた自動原稿送り装置のケーシングの開閉
部支点機構において、前記ケーシングの支点部位に形成
された回り止め用の回転孔と、前記ケーシングの支点部
位に同軸上に位置する前記画像形成装置本体の支点部位
に形成された固定孔と、この固定孔の近傍で、前記画像
形成装置本体のケーシング側に設けられた突起と、前記
ケーシング内から前記回転孔と固定孔に嵌入され、前記
回転孔により回り止めされた状態で、かつ、前記突起に
より角度規制された状態で、前記ケーシングを転回させ
うる樹脂製の支点部材と、この支点部材を抜け止めされ
た状態で前記ケーシングに装着する抜け止め手段とを備
え、更に、この支点部材は、前記回転孔と固定孔に跨が
り軸支される中空構造の支持部と、前記ケーシングが上
方に転回した時に前記突起に当接して前記ケーシングの
転回角度を規制する当り面を有し、前記回転孔にのみ嵌
入可能な形状の回り止め部とを一体成形して構成されて
いる。In order to achieve the above object, the present invention relates to an opening / closing part fulcrum mechanism of a casing of an automatic document feeder, which is provided on an upper portion of an image forming apparatus body so as to be rotatable upward. A rotation hole for rotation prevention formed in a fulcrum part of the casing, a fixing hole formed in a fulcrum part of the image forming apparatus body located coaxially with the fulcrum part of the casing, and in the vicinity of the fixing hole, A projection provided on the casing side of the image forming apparatus main body, a state in which the rotation hole and the fixed hole are fitted into the casing from the inside of the casing, and the rotation hole prevents rotation, and the angle is regulated by the projection. And a fulcrum member made of resin capable of turning the casing, and a retaining means for attaching the fulcrum member to the casing in a state in which the fulcrum member is retained. The member has a hollow-structured supporting portion that is rotatably supported by the rotating hole and the fixed hole, and has a contact surface that abuts on the protrusion when the casing rolls upward and regulates the rolling angle of the casing. , And a rotation stopping portion having a shape that can be fitted only in the rotation hole.
【０００６】[0006]
【作用】ケーシングと画像形成装置本体に跨がり支点部
材を装着すると、中空構造の支持部の前端部分が画像形
成装置本体に設けた固定孔に軸支されるとともに、支持
部の後端部分がケーシングに設けた回転孔に回り止め部
を伴って嵌入される。この際、抜け止め手段によって支
点部材を前記ケーシングに装着できる一方、前記回転孔
によって支点部材を回り止めされた状態にできる。When the fulcrum member straddling the casing and the main body of the image forming apparatus is mounted, the front end portion of the supporting portion having a hollow structure is axially supported by the fixing hole provided in the main body of the image forming apparatus, and the rear end portion of the supporting portion is moved. It is fitted in a rotation hole provided in the casing together with a rotation stopping portion. At this time, the fulcrum member can be attached to the casing by the retaining means, while the fulcrum member can be prevented from rotating by the rotation hole.
【０００７】そして、前記ケーシングが上方に転回した
時に、前記固定孔の近傍で、前記画像形成装置本体のケ
ーシング側に設けられた突起に、前記回り止め部の当り
面が当接して前記ケーシングの転回角度を規制できる。Then, when the casing is turned upward, the contact surface of the rotation preventing portion abuts on the protrusion provided on the casing side of the image forming apparatus main body in the vicinity of the fixing hole so that the casing comes into contact with the protrusion. The turning angle can be regulated.
【０００８】[0008]
【実施例】以下、この発明の実施例を図面に基づいて説
明する。なお、それによってこの発明は限定を受けるも
のではない。Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited thereby.
【０００９】図１は自動原稿送り装置（ＡＤＦ）１の操
作部Ｓを上面に装備したファクシミリ（以下ＦＡＸとい
う）２の全体を示し、符号３は原稿テーブル、４は原稿
排紙トレイ、５は給紙部（後述する）、６はＦＡＸ送信
すべき原稿を光学的に読み取り、受信側のＦＡＸに対し
てＦＡＸ信号を送出するための画像読取部、７は送信側
のＦＡＸから送出されたＦＡＸ信号を受信し、イメージ
ングユニット８に対して電気信号または光信号を送出す
るレーザースキャニングユニットを内蔵する光学系ユニ
ットである。FIG. 1 shows the whole of a facsimile (hereinafter referred to as FAX) 2 equipped with an operation section S of an automatic document feeder (ADF) 1 on its upper surface. Reference numeral 3 is a document table, 4 is a document discharge tray, and 5 is a document discharge tray. A paper feeding unit (described later), 6 is an image reading unit for optically reading a document to be FAX-transmitted and sending a FAX signal to a FAX on the receiving side, and 7 is a FAX sent from the FAX on the sending side. It is an optical system unit containing a laser scanning unit that receives a signal and sends an electric signal or an optical signal to the imaging unit 8.
【００１０】イメージングユニット８は光学系ユニット
７の下方に固設され、感光体ドラム９を有し、その感光
体ドラム９のまわりには、帯電器、用紙カセット１０か
ら給紙ローラ１１によりレジストローラ対１２を介して
給紙される用紙の現像部１３、転写ローラ１４およびク
リーニング装置１５等が設けられている。また、１６
は、定着ローラ対１７を介してＦＡＸ受信信号に応じた
画像が形成された用紙を排出する用紙排紙トレイであ
る。The imaging unit 8 is fixed below the optical system unit 7 and has a photoconductor drum 9. Around the photoconductor drum 9, a charger, a paper cassette 10 and a paper feed roller 11 are used as registration rollers. A developing unit 13, a transfer roller 14, a cleaning device 15, and the like for a sheet fed through the pair 12 are provided. Also, 16
Is a paper discharge tray for discharging the paper on which an image corresponding to the FAX reception signal is formed via the fixing roller pair 17.
【００１１】また、１８はＡＤＦ１駆動用のモータであ
る。すなわち、図２に示すように、ＡＤＦ１は、画像形
成装置本体Ｍの上部に上方に転回自在に設けられた操作
部Ｓ、この操作部Ｓを操作させるための基板２０および
出力面を下方に向けて配置されたスピーカー２１とを収
納しているケーシング（ハウジング）１９と、ＡＤＦ１
駆動用のモータ１８と、給紙部５とから構成されてい
る。Reference numeral 18 is a motor for driving the ADF 1. That is, as shown in FIG. 2, the ADF 1 includes an operation unit S provided on the upper portion of the image forming apparatus main body M so as to be rotatable upward, a substrate 20 for operating the operation unit S, and an output surface facing downward. And a casing (housing) 19 that accommodates the speaker 21 arranged as
It is composed of a driving motor 18 and a paper feeding section 5.
【００１２】そして、このケーシング１９は、操作部Ｓ
が配置されているカバー体２２を上部に有する一方、ス
ピーカー２１が配置されている箱体２３を下部に有す
る。なお、３８はカバー体２２の支点機構である。The casing 19 has an operating portion S
Has a cover body 22 in which the speaker is arranged at the upper part, and has a box body 23 in which the speaker 21 is arranged at the lower part. Incidentally, 38 is a fulcrum mechanism of the cover body 22.
【００１３】また、画像形成装置本体Ｍは、内フレーム
ｍ1 および外フレームｍ2 を有する。Further, the image forming apparatus main body M has an inner frame m 1 and an outer frame m 2 .
【００１４】更に、給紙部５は、図１、図２、図６に示
すように、原稿テーブル３にセットされた原稿（図示せ
ず）を給紙口Ｋから排紙トレイ４に搬送するための搬送
ガイド（下ガイド）２４と、この搬送ガイド２４の最上
流側に位置する前送りローラ２５と、前送りローラ２５
の下流側に位置し、前送りローラ２５によって給紙口Ｋ
から搬送ガイド２４に沿って給紙される原稿を下流側に
案内する給紙ローラ２６と、給紙ローラ２６の下流側に
位置する搬送ローラ対２７ａ，２７ｂとから構成されて
いる。２９ａは画像読取部６で光学的に読み取られた原
稿を排紙トレイ４に排出するための排出ローラ対２９の
下排出ローラ２９ａである。Further, as shown in FIGS. 1, 2 and 6, the paper feeding section 5 conveys a document (not shown) set on the document table 3 from the paper feed port K to the paper ejection tray 4. Transport guide (lower guide) 24, a forward feed roller 25 located on the most upstream side of the transport guide 24, and a forward feed roller 25
Located on the downstream side of
It is composed of a paper feed roller 26 which guides the document fed along the paper feed guide 24 to the downstream side, and a pair of transport rollers 27a and 27b which are located on the downstream side of the paper feed roller 26. Reference numeral 29a denotes a lower discharge roller 29a for discharging a document optically read by the image reading unit 6 to the discharge tray 4 for discharging the document to the discharge tray 4.
【００１５】そして、３１は、前送りローラ２５の直上
に設けられた前送り用押圧板であり、押圧板３１に適度
の押圧力を付与するための弾性体３２を備えている。３
３は給紙ローラ２６の直上に設けられたサバキパッドで
あり、サバキパッド３３および押圧板３１は、搬送ガイ
ド２４の上方で搬送ガイド２４に沿って設けられた上ガ
イド３４に装着されている。Reference numeral 31 is a forward feed pressing plate provided directly above the forward feed roller 25, and is provided with an elastic body 32 for applying an appropriate pressing force to the pressing plate 31. 3
Reference numeral 3 denotes a separation pad provided directly above the paper feed roller 26, and the separation pad 33 and the pressing plate 31 are attached to an upper guide 34 provided above the conveyance guide 24 and along the conveyance guide 24.
【００１６】以下、図２〜図６を参照してケーシングの
支点機構について説明する。支点機構Ｈは、ケーシング
１９の支点部位に形成された回り止め用の回転孔４０
と、ケーシング１９の支点部位に同軸上に位置する内フ
レームｍ1 の支点部位に形成された固定孔４１と、この
固定孔４１の近傍で、かつその下部の内フレームｍ1 の
ケーシング側に設けられた突起４２と、ケーシング１９
内から回転孔４０と固定孔４１に嵌入され、回転孔４０
により回り止めされた状態で、かつ、突起４２により角
度規制された状態で、ケーシング１９を転回させうる樹
脂製の支点部材４３と、この支点部材４３を抜け止めさ
れた状態でケーシング１９に装着する抜け止め手段（後
述する）とを備え、更に、この支点部材４３は、回転孔
４０と固定孔４１に跨がり軸支される中空構造の支持部
４４と、ケーシング１９が上方に転回した時に突起４２
に当接してケーシング１９の転回角度を規制する当り面
４５ａを有し、回転孔４０にのみ嵌入可能な形状の回り
止め部４５とを一体成形して構成されている。The fulcrum mechanism of the casing will be described below with reference to FIGS. The fulcrum mechanism H includes a rotation stop rotation hole 40 formed at a fulcrum portion of the casing 19.
And a fixing hole 41 formed in a fulcrum portion of the inner frame m 1 coaxially located at a fulcrum portion of the casing 19, and a fixing hole 41 provided in the vicinity of the fixing hole 41 and at a lower portion thereof on the casing side of the inner frame m 1. Projection 42 and casing 19
The rotary hole 40 and the fixed hole 41 are fitted into the rotary hole 40 from the inside.
And a fulcrum member 43 made of resin capable of rotating the casing 19 in a state where the fulcrum member 43 is prevented from rotating and the fulcrum member 43 is attached to the casing 19 while being prevented from coming off. The fulcrum member 43 is provided with a retaining means (to be described later), and the fulcrum member 43 has a hollow supporting portion 44 axially supported by the rotating hole 40 and the fixed hole 41, and a protrusion when the casing 19 rolls upward. 42
It has a contact surface 45a that abuts against the casing 19 to regulate the turning angle of the casing 19, and is integrally formed with a rotation stopping portion 45 having a shape that can be fitted only in the rotation hole 40.
【００１７】具体的には、支持部４４は、ケーシング１
９内の電気部品の配線処理を行うために、電線４６貫通
用の中空孔４７が形成されている。また、支持部４４
は、固定孔４１に嵌入可能な小さい径を有する小径部分
４４ａと、この小径部分が先に回転孔４０を挿通して固
定孔４１に嵌入される際に回転孔４０の固定孔４１より
も大きい径を有する円孔部分４０ａに嵌入可能な径を有
する大径部分４４ｂとからなる。Specifically, the support portion 44 is the casing 1
A hollow hole 47 for penetrating the electric wire 46 is formed in order to perform the wiring process of the electric parts in the wiring 9. In addition, the support portion 44
Is a smaller diameter portion 44a having a smaller diameter that can be fitted into the fixed hole 41, and is larger than the fixed hole 41 of the rotary hole 40 when the small diameter portion is inserted into the fixed hole 41 through the rotary hole 40 first. It has a large diameter portion 44b having a diameter that can be fitted into the circular hole portion 40a having a diameter.
【００１８】一方、回り止め部４５は、縦断面略扇型で
支持部４４の大径部分４４ｂ上に一体成形により配置さ
れる一方、回転孔４０の円孔部分４０ａに連通する略扇
型の孔部分４０ｂに嵌入可能な大きさを有する。On the other hand, the whirl-stop 45 has a substantially fan-shaped longitudinal section and is integrally formed on the large-diameter portion 44b of the support 44, while it is substantially fan-shaped and communicates with the circular hole 40a of the rotary hole 40. It has a size that can be fitted into the hole portion 40b.
【００１９】また、上述した抜け止め手段が、回転孔４
０と固定孔４１に嵌入された支点部材４３の抜け止め用
の爪５０と、支点部材４３の一端（後端）に形成された
フランジ５１，５２とからなり、更に、爪５０が、回り
止め部の円弧部分４５ｂと、支持部４４の大径部分４４
ｂの円弧部分５３にそれぞれ形成され、かつ、フランジ
５１，５２が回り止め部４５と支持部４４の大径部分４
４ｂに跨がるよう形成され、このフランジ５１，５２と
抜け止め用の爪５０とによって支点部材４３がケーシン
グ１９に装着できる。５４はコネクタであり、５５は支
持部４４の上面で軸支方向に形成されたスリットであ
る。また、５６は内フレームｍ1 における突起４２直上
に設けられ固定孔４１に連通する切欠きであって、この
切欠き５６とスリット５５を利用することによって電線
４６を中空孔４７に貫通させることができる。Further, the above-mentioned retaining means is the rotation hole 4
0 and a pawl 50 for retaining the fulcrum member 43 fitted in the fixing hole 41, and flanges 51 and 52 formed at one end (rear end) of the fulcrum member 43. Portion 45b and the large diameter portion 44 of the support portion 44
The flanges 51 and 52 are respectively formed on the arc portion 53 of b and the large diameter portion 4 of the rotation preventing portion 45 and the supporting portion 44 is formed.
The fulcrum member 43 can be attached to the casing 19 by being formed so as to straddle 4b, and the flanges 51 and 52 and the retaining claws 50. Reference numeral 54 is a connector, and 55 is a slit formed on the upper surface of the support portion 44 in the axial support direction. Reference numeral 56 is a notch provided directly above the protrusion 42 in the inner frame m 1 and communicating with the fixing hole 41. By using the notch 56 and the slit 55, the electric wire 46 can be passed through the hollow hole 47. it can.
【００２０】以上のように構成されるＦＡＸ２では、ケ
ーシング１９と内フレームｍ1 に跨がり支点部材４３を
装着すると、中空構造の支持部４４の小径部分４４ａ
（前端部分）が内フレームｍ1 に設けた固定孔４１に軸
支されるとともに、支持部４４の大径部分４４ｂ（後端
部分）がケーシング１９に設けた回転孔４０に回り止め
部４５を伴って嵌入される。この際、抜け止め用の爪５
０と、大径部分４４ｂの後端に形成されたフランジ５
１，５２によって支点部材４３をケーシング１９に装着
できる一方、回転孔４０によって支点部材４３を回り止
めされた状態にできる。In the FAX 2 constructed as described above, when the fulcrum member 43 is mounted across the casing 19 and the inner frame m 1 , the small diameter portion 44a of the supporting portion 44 having a hollow structure is formed.
The (front end portion) is pivotally supported in the fixing hole 41 provided in the inner frame m 1, and the large diameter portion 44b (rear end portion) of the support portion 44 is provided with the rotation stopping portion 45 in the rotation hole 40 provided in the casing 19. It is inserted with it. At this time, the retaining claws 5
0 and the flange 5 formed at the rear end of the large diameter portion 44b
The fulcrum member 43 can be mounted on the casing 19 by 1, 52, while the fulcrum member 43 can be stopped by the rotation hole 40.
【００２１】そして、ケーシング１９が、図６に示すよ
うに上方に転回した時に、固定孔４１の近傍で、内フレ
ームｍ1 のケーシング側に設けられた突起４２に、回り
止め部４５の当り面４５ａが当接してケーシング１９の
転回角度を規制できる。Then, when the casing 19 is turned upward as shown in FIG. 6, the protrusion 42 provided on the casing side of the inner frame m 1 near the fixing hole 41 is in contact with the contact surface of the rotation preventing portion 45. The rotation angle of the casing 19 can be regulated by the contact with the 45a.
【００２２】このように本実施例では、ケーシング１９
の支点機構を樹脂製の支点部材４３で構成し、これを内
側からの嵌め込み式にし、更に支点部材４３を電線４６
を通せるように中空構造で、かつスリット５５の入った
形状にするとともに、ケーシング１９の開閉時の角度規
制のための当たりも兼ねるようにし、しかも支点部材４
３を抜け止めされた状態でケーシング１９に装着できる
ようにしたものであり、１個の支点部材４３を用いるの
で取付け作業を容易にできる上に、回り止めと抜け止め
を簡易な構成で行うことができ、また、配線処理を容易
にできる着脱式の支点機構を提供できる。As described above, in this embodiment, the casing 19
The fulcrum mechanism of No. 4 is composed of a fulcrum member 43 made of resin, and this is fitted from the inside.
It has a hollow structure so that it can be inserted therethrough, and has a shape with a slit 55, and also serves as a contact for regulating the angle when the casing 19 is opened and closed.
3 can be attached to the casing 19 in a locked state, and since one fulcrum member 43 is used, the mounting work can be facilitated, and the detent and the locking can be performed with a simple structure. It is also possible to provide a detachable fulcrum mechanism that facilitates wiring processing.
【００２３】[0023]
【発明の効果】以上のようにこの発明では、画像形成装
置本体の上部に上方に転回自在に設けられた自動原稿送
り装置の操作部のケーシングの支点機構を樹脂製の支点
部材で構成し、これを内側からの嵌め込み式にし、更に
ケーシングの開閉時の角度規制のための当たりも兼ねる
ようにし、しかも支点部材を抜け止めされた状態でケー
シングに装着できるようにしたものであり、１個の支点
部材を用いるので取付け作業を容易にできる上に、回り
止めと抜け止めを簡易な構成で行うことができる着脱式
の支点機構を提供できる。As described above, according to the present invention, the fulcrum mechanism of the casing of the operating portion of the automatic document feeder, which is provided on the upper part of the main body of the image forming apparatus so as to be rotatable upward, is composed of the fulcrum member made of resin. This is a fitting type from the inside, and also serves as a hit for regulating the angle when the casing is opened and closed. Furthermore, the fulcrum member can be attached to the casing in a locked state. Since the fulcrum member is used, it is possible to provide a detachable fulcrum mechanism that facilitates the mounting work and can prevent the rotation and coming off with a simple structure.
【図１】この発明の一実施例を示す全体構成説明図であ
る。FIG. 1 is an explanatory diagram of the overall configuration showing an embodiment of the present invention.
【図２】上記実施例における支点機構を示す要部構成説
明図である。FIG. 2 is an explanatory diagram of a main part configuration showing a fulcrum mechanism in the embodiment.
【図３】上記実施例における支点機構を示す要部分解斜
視図である。FIG. 3 is an exploded perspective view of essential parts showing a fulcrum mechanism in the above embodiment.
【図４】上記実施例における支点機構の取付け状態を示
す要部構成説明図である。FIG. 4 is an explanatory view of a main part configuration showing a mounting state of a fulcrum mechanism in the above embodiment.
【図５】上記実施例における支点機構で用いた支点部材
を示す構成説明図である。FIG. 5 is a structural explanatory view showing a fulcrum member used in the fulcrum mechanism in the above embodiment.
【図６】上記実施例における支点機構の動作を示す要部
構成説明図である。FIG. 6 is an explanatory diagram of a main part configuration showing an operation of a fulcrum mechanism in the above embodiment.
１…自動原稿送り装置、２…ＦＡＸ、１９…ケーシン
グ、４１…固定孔、４２…突起、４３…樹脂製の支点部
材、４４…支持部、４５ａ…当り面、４５…回り止め
部、５０…爪（抜け止め手段）、５１，５２…フランジ
（抜け止め手段）、ｍ1 …内フレーム（画像形成装置本
体）、Ｓ…操作部。DESCRIPTION OF SYMBOLS 1 ... Automatic document feeder, 2 ... FAX, 19 ... Casing, 41 ... Fixing hole, 42 ... Protrusion, 43 ... Resin fulcrum member, 44 ... Support part, 45a ... Contact surface, 45 ... Rotation stop part, 50 ... Claws (prevention means), 51, 52 ... Flange (prevention means), m 1 ... Inner frame (main body of image forming apparatus), S ... Operation part.
Claims (6)
在に設けられた自動原稿送り装置のケーシングの開閉部
支点機構において、前記ケーシングの支点部位に形成さ
れた回り止め用の回転孔と、前記ケーシングの支点部位
に同軸上に位置する前記画像形成装置本体の支点部位に
形成された固定孔と、この固定孔の近傍で、前記画像形
成装置本体のケーシング側に設けられた突起と、前記ケ
ーシング内から前記回転孔と固定孔に嵌入され、前記回
転孔により回り止めされた状態で、かつ、前記突起によ
り角度規制された状態で、前記ケーシングを転回させう
る樹脂製の支点部材と、この支点部材を抜け止めされた
状態で前記ケーシングに装着する抜け止め手段とを備
え、更に、この支点部材は、前記回転孔と固定孔に跨が
り軸支される中空構造の支持部と、前記ケーシングが上
方に転回した時に前記突起に当接して前記ケーシングの
転回角度を規制する当り面を有し、前記回転孔にのみ嵌
入可能な形状の回り止め部とを一体成形して構成されて
いることを特徴とする自動原稿送り装置の開閉部支点機
構。1. An opening / closing part fulcrum mechanism of a casing of an automatic document feeder, which is provided at an upper portion of an image forming apparatus body so as to be rotatable upward, and a rotation stop rotation hole formed at a fulcrum portion of the casing, A fixing hole formed in a fulcrum part of the image forming apparatus main body coaxially with a fulcrum part of the casing; a protrusion provided on the casing side of the image forming apparatus main body in the vicinity of the fixing hole; A fulcrum member made of resin, which is fitted into the rotary hole and the fixed hole from the inside of the casing, is rotated by the rotary hole, and can rotate the casing in a state in which the angle is regulated by the protrusion, A hollow structure in which the fulcrum member is attached to the casing in a state where the fulcrum member is retained, and the fulcrum member is axially supported across the rotation hole and the fixed hole. And a detent portion having a contact surface that restricts the turning angle of the casing by coming into contact with the protrusion when the casing rolls upward and has a shape capable of being fitted only in the rotation hole. An opening / closing unit fulcrum mechanism of an automatic document feeder, which is configured as follows.
置の操作部を操作させるための基板と、出力面を下方に
向けて配置されたスピーカーとを収納している請求項１
に記載の自動原稿送り装置の開閉部支点機構。2. The casing houses a substrate for operating an operation unit of the automatic document feeder and a speaker arranged with an output surface facing downward.
Opening and closing fulcrum mechanism of the automatic document feeder described in.
部品の配線処理を行うために、電線貫通用の中空孔が形
成されている請求項１又は請求項２に記載の自動原稿送
り装置の開閉部支点機構。3. The automatic document feeder according to claim 1, wherein the supporting portion is formed with a hollow hole through which an electric wire penetrates in order to carry out wiring processing of electric parts in the casing. Opening and closing fulcrum mechanism.
小さい径を有する小径部分と、この小径部分が先に前記
回転孔を挿通して前記固定孔に嵌入される際に前記回転
孔の前記固定孔よりも大きい径を有する円孔部分に嵌入
可能な径を有する大径部分とからなる請求項１ないし請
求項３のいずれかに記載の自動原稿送り装置の開閉部支
点機構。4. The support portion includes a small diameter portion having a small diameter that can be fitted into the fixing hole, and the rotation hole when the small diameter portion is inserted into the rotation hole first and then fitted into the fixing hole. 4. The opening / closing part fulcrum mechanism of the automatic document feeder according to claim 1, further comprising a large diameter portion having a diameter capable of being fitted into a circular hole portion having a diameter larger than the fixing hole.
支持部の大径部分上に一体成形により配置される一方、
前記回転孔の円孔部分に連通する略扇型の孔部分に嵌入
可能な大きさを有する請求項１ないし請求項４のいずれ
かに記載の自動原稿送り装置の開閉部支点機構。5. The whirl-stop portion is substantially fan-shaped in vertical cross-section and is integrally formed on the large-diameter portion of the support portion,
The opening / closing part fulcrum mechanism of the automatic document feeder according to any one of claims 1 to 4, wherein the opening / closing part fulcrum mechanism has a size capable of being fitted into a substantially fan-shaped hole communicating with the circular hole of the rotary hole.
孔に嵌入された前記支点部材の抜け止め用の爪と、前記
支点部材の一端に形成されたフランジとからなり、更
に、前記爪が、前記回り止め部の円弧部分と、前記支持
部の大径部分の円弧部分にそれぞれ形成され、かつ、前
記フランジが前記回り止め部と前記支持部の大径部分に
跨がるよう形成され、このフランジと前記抜け止め用の
爪とによって前記支点部材が前記ケーシングに装着され
る請求項１ないし請求項５のいずれかに記載の自動原稿
送り装置の開閉部支点機構。6. The retaining means comprises a retaining claw fitted in the rotation hole and a fixed hole for retaining the fulcrum member, and a flange formed at one end of the fulcrum member. Are formed in the arcuate portion of the detent portion and the arcuate portion of the large diameter portion of the support portion, respectively, and the flange is formed so as to straddle the detent portion and the large diameter portion of the support portion. The opening / closing unit fulcrum mechanism of the automatic document feeder according to any one of claims 1 to 5, wherein the fulcrum member is attached to the casing by the flange and the retaining claw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21813095A JP3247827B2 (en) | 1995-08-02 | 1995-08-02 | Opening / closing fulcrum mechanism of automatic document feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21813095A JP3247827B2 (en) | 1995-08-02 | 1995-08-02 | Opening / closing fulcrum mechanism of automatic document feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0941779A true JPH0941779A (en) | 1997-02-10 |
| JP3247827B2 JP3247827B2 (en) | 2002-01-21 |
Family
ID=16715114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21813095A Expired - Fee Related JP3247827B2 (en) | 1995-08-02 | 1995-08-02 | Opening / closing fulcrum mechanism of automatic document feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3247827B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175942A (en) * | 2007-01-17 | 2008-07-31 | Kyocera Mita Corp | Image forming apparatus |
| JP2010217772A (en) * | 2009-03-18 | 2010-09-30 | Fuji Xerox Co Ltd | Fixing structure of support shaft and fixing device using the same, and image forming apparatus |
| JP2014166893A (en) * | 2013-02-28 | 2014-09-11 | Seiko Epson Corp | Medium processing device including reversing unit |
-
1995
- 1995-08-02 JP JP21813095A patent/JP3247827B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175942A (en) * | 2007-01-17 | 2008-07-31 | Kyocera Mita Corp | Image forming apparatus |
| JP2010217772A (en) * | 2009-03-18 | 2010-09-30 | Fuji Xerox Co Ltd | Fixing structure of support shaft and fixing device using the same, and image forming apparatus |
| JP2014166893A (en) * | 2013-02-28 | 2014-09-11 | Seiko Epson Corp | Medium processing device including reversing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3247827B2 (en) | 2002-01-21 |
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