JP5002141B2 - Damper apparatus, apparatus equipped with the same, and image forming apparatus - Google Patents
Damper apparatus, apparatus equipped with the same, and image forming apparatus Download PDFInfo
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Description
本発明は、支軸開閉体のダンパ装置、画像形成装置に係り、特に装置本体と、装置本体に設けられた支軸を中心として回転方向に開閉可能に構成された回動ユニットとを有する装置に取り付けられるダンパ装置及びこのダンパ装置を備えた装置及び画像形成装置に関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper device for a supporting shaft opening / closing body and an image forming apparatus, and more particularly, to an apparatus main body and a rotation unit configured to be opened and closed in a rotating direction around a supporting shaft provided in the apparatus main body The present invention relates to a damper device attached to the apparatus, an apparatus including the damper device, and an image forming apparatus.
画像形成装置は、画像形成装置本体とこの装置本体に軸を中心にして回動して開閉可能に構成される反転ユニット等の回動ユニットを備えることがある。このような画像形成装置の装置本体には画像読取部、画像形成部、用紙供給部等が配置され、回動ユニットとしては、反転ユニット、手差しユニットなどオプション装置が採用されることがある。このような回動ユニットは、内部装置のメンテナンスや紙詰まりの解消処理のため、容易に内部にアクセスしやすい開閉可能な構造とされる。そして、このような装置本体と回動部材との間には開閉部の回動速度を抑制するダンパ装置を備えるようにしている。また、このようなダンパ装置は回動ユニットの操作性やメンテナンス等装置内部の作業性を阻害することがない構成を備えることが望まれる。 The image forming apparatus may include an image forming apparatus main body and a rotation unit such as a reversing unit configured to be rotatable about the axis of the apparatus main body and openable / closable. An image reading unit, an image forming unit, a paper supply unit, and the like are disposed in the apparatus main body of such an image forming apparatus, and optional devices such as a reversing unit and a manual feed unit may be employed as the rotation unit. Such a rotation unit has an openable and closable structure that allows easy access to the inside for maintenance of the internal device and paper jam clearing processing. A damper device that suppresses the rotation speed of the opening / closing portion is provided between the apparatus main body and the rotation member. Further, it is desirable that such a damper device has a configuration that does not hinder the operability of the rotating unit and the workability inside the device such as maintenance.
一般に上述のようなダンパ装置として、装置本体と回動ユニットとの間に板金で構成したリンク機構を配置し、このリンク機構にリンク機構の急速な開閉を防止するダンパ機構を配置したものがある。 In general, as the above-described damper device, there is a device in which a link mechanism constituted by a sheet metal is arranged between the device main body and the rotation unit, and a damper mechanism for preventing the link mechanism from being opened / closed rapidly is arranged in this link mechanism. .
このようなダンパ装置を採用した構造が特許文献1に記載されている。これは、底板を押し上げる加圧アームを加圧軸に固設し、加圧軸に固設したスプリング掛けアームをスプリングにより回転付勢して、加圧アームを同方向に回転付勢するものであり、底板は、下面に設けた突片を底板解除スライダーでロックし、スプリング掛けアームにピンを突設し、筐体に固定したダンパにピンを固設し、給紙トレイを複写印刷機本体にセットして底板解除スライダーによる底板のロックが外れると、スプリングの加圧力により加圧アームを介して底板が持ち上げられ、この時、ダンパの作用により底板はゆっくりと上昇し、コーナー爪等への衝撃力が緩和されるものである。
しかしながら、上述した板金製のダンパ装置は、回動ユニット閉時にはリンク機構を折畳むための大きなスペースが必要となり、また回動ユニットの開時においてはリンク機構が展開してメンテナンス等装置内部の作業性を悪くすることがあり、また操作性も円滑ではない。 However, the above-described damper device made of sheet metal requires a large space for folding the link mechanism when the rotating unit is closed, and when the rotating unit is opened, the link mechanism is unfolded to perform maintenance and other workability inside the apparatus. The operability is not smooth.
また、画像形成装置では、画像形成装置本体には回動ユニットとして、種々ものが取り付けられている。このような回動ユニットの一つとして両面印刷を行うために転写用紙を反転処理する両面ユニットがある。両面ユニットでは紙詰まり解消のジャム処理を簡易化するため、転写ユニット等が備え付けられ重量が大きいため、操作性、メンテナンス等装置内部の作業性、安全性を向上させる必要が望まれ、省スペース化、コストダウンができるダンパ装置が要望されている。 In the image forming apparatus, various types of rotating units are attached to the image forming apparatus main body. As one of such rotating units, there is a double-sided unit that reverses transfer paper in order to perform double-sided printing. The double-sided unit is equipped with a transfer unit to simplify the jam-clearing process to eliminate paper jams, and the weight is large, so it is necessary to improve the operability and maintenance such as operability and maintenance. Therefore, there is a demand for a damper device that can reduce the cost.
そこで本発明は、上述した従来の問題点に鑑みてなされたものであり、ダンパ装置を簡素な機構として、開閉ユニットの操作性、メンテナンス等装置内部の作業性、安全性の向上、省スペース化、コストダウン図ることを目的とする。 Therefore, the present invention has been made in view of the above-described conventional problems, and the damper device is a simple mechanism, the operability of the opening / closing unit, the workability inside the device such as maintenance, improvement of safety, and space saving. The purpose is to reduce costs.
請求項1の発明は、
装置本体と、該装置本体に支軸を中心として回転方向に開閉可能に構成された両面ユニットとを有する装置に設けられたダンパ装置において、
前記両面ユニット内の下部に、
長手方向に伸縮する弾性部材であるコイルバネ部材と、
該コイルバネ部材の一端にその一端が接続された線状連結部材であるワイヤー状部材と、
該ワイヤー状部材の架設方向を変更する偏向部材である滑車と、
前記コイルバネ部材の他端を係止するための係止部材である一のピン部材とを備え、
前記装置本体側に、前記ワイヤー部材の一端を係止するための係止部材である他のピン部材を備え、
前記コイルバネ部材と、前記ワイヤー状部材と、前記滑車と、前記両ピン部材が前記両面ユニットの下方に略水平状態となるよう配置され、前記滑車により前記ワイヤー状部材が直角に偏向され、かつ前記両面ユニットの上部を斜め上方向へ閉じるように回動付勢することを特徴とするダンパ装置である。
The invention of claim 1
In a damper device provided in an apparatus having an apparatus main body and a double-sided unit configured to be openable and closable in a rotation direction around a support shaft in the apparatus main body,
At the bottom of the duplex unit,
A coil spring member that is an elastic member that expands and contracts in the longitudinal direction;
A wire-like member which is a linear connecting member having one end connected to one end of the coil spring member;
A pulley that is a deflection member that changes the erection direction of the wire-like member ;
A pin member that is a locking member for locking the other end of the coil spring member;
On the device body side, provided with another pin member that is a locking member for locking one end of the wire member,
The coil spring member, the wire-like member, the pulley, and the both pin members are arranged in a substantially horizontal state below the double-sided unit, and the wire-like member is deflected at right angles by the pulley, and The damper device is characterized in that the upper portion of the duplex unit is pivotally biased so as to be closed obliquely upward.
請求項2の発明は、請求項1のダンパ装置において、前記弾性部材であるコイルバネ部材は前記支軸の軸線に対して略平行に配置されてなることを特徴とする。
According to a second aspect of the present invention, in the damper device according to the first aspect , the coil spring member as the elastic member is arranged substantially parallel to the axis of the support shaft.
請求項3の発明は、請求項1または2のダンパ装置において、前記偏向部材である滑車と前記線状連結部材であるワイヤー状部材を前記両面ユニット内で、前記支軸に近接配置してなることを特徴とする。
According to a third aspect of the present invention, in the damper device according to the first or second aspect, a pulley that is the deflection member and a wire-shaped member that is the linear connecting member are disposed in the double-sided unit close to the support shaft. It is characterized by that.
請求項4の発明は、請求項1ないし3のいずれかのダンパ装置を備えたことを特徴とする装置である。
A fourth aspect of the present invention is an apparatus comprising the damper device according to any one of the first to third aspects.
請求項5の発明は、請求項1ないし3のいずれかのダンパ装置を備え、装置本体が画像形成装置本体であり、前記両面ユニットが付加装置であることを特徴とする画像形成装置である。
A fifth aspect of the present invention is an image forming apparatus comprising the damper device according to any one of the first to third aspects , wherein the apparatus main body is an image forming apparatus main body, and the duplex unit is an additional apparatus.
本発明によれば、ダンパ装置を両面ユニット内部に設置することが可能となるほか、ダンパ装置を簡素な構成とすることができると共に、両面ユニットの操作性、メンテナンス等装置内部の作業性、安全性の向上、省スペース化、コストダウンを図ることができる。
According to the present invention, the damper device can be installed inside the double-sided unit, the damper device can have a simple configuration, and the operability of the double-sided unit, workability inside the device such as maintenance, safety Improvement, space saving, and cost reduction can be achieved.
以下本発明を実施するための最良の形態を、図に示す実施例を参照して説明する。 The best mode for carrying out the present invention will be described below with reference to the embodiments shown in the drawings.
以下本発明に係る画像形成装置の実施の形態を図面に基づいて説明する。図1は実施例に係る画像形成装置の正面図、図2は実施例に係る画像形成装置にダンパ装置が取り付けられた状態を示す側面図、図3は参考例に係る画像形成装置においてユニットが閉じている状態を示す平面図、図4は参考例に係る画像形成装置において、ユニットが開いている状態を示す平面図、図5は実施例に係る画像形成装置にダンパ装置を取り付けた場合のワイヤー状部材の配設の状態を示す正面図、図6は実施例に係るダンパ装置のピン部材とバネ部材の固定方法の一例を示した斜視図、図7は実施例に係るダンパ装置のワイヤー状部材の固定方法の一例を示した斜視図、図8は実施例に係るダンパ装置のワイヤー状部材が滑車によって偏向されている状態を示す斜視図である。
Embodiments of an image forming apparatus according to the present invention will be described below with reference to the drawings. A front view of the image forming apparatus 1 according to the embodiment, FIG. 2 is a side view showing a state where the damper device is attached to the image forming apparatus according to an embodiment, FIG. 3 is a unit in an image forming apparatus according to a reference example plan showing the closed state diagram, FIG. 4 is an image forming apparatus according to the reference example, a plan view showing a state in which the unit is open, Fig. 5 when attaching the damper device in an image forming equipment according to the embodiment FIG. 6 is a perspective view showing an example of a fixing method of the pin member and the spring member of the damper device according to the embodiment, and FIG. 7 is a perspective view of the damper device according to the embodiment. FIG. 8 is a perspective view showing a state in which the wire member of the damper device according to the embodiment is deflected by a pulley.
本例に係る画像形成装置10は、図1に示すように、画像形成装置本体1に画像形成部11、原稿読取部12、用紙供給部13を備え、原稿読取部12と画像形成部11との間に排紙部14を配置した胴内排出型のものである。また、この画像形成装置本体1には支軸2が設けられており、回動ユニットである両面ユニット3は、図示のように、その上方が斜め上方へ回動して閉じるように軸支されている。このような画像形成装置10では、画像形成装置10の使用時には、両面ユニット3は画像形成装置本体1に閉状態に、メンテナンスやジャム解消時には開状態(図1中に破線で示した)とされる。 As shown in FIG. 1, the image forming apparatus 10 according to this example includes an image forming unit 11, a document reading unit 12, and a paper supply unit 13 in the image forming apparatus main body 1. This is an in-cylinder discharge type in which a paper discharge unit 14 is disposed between the two. Also, this is the image forming apparatus main body 1 and the support shaft 2 is provided, duplex unit 3 is rotating unit, as illustrated, the axis in the closed Ji so that rotates thereabove obliquely upward It is supported. In such an image forming apparatus 10, the duplex unit 3 is closed to the image forming apparatus main body 1 when the image forming apparatus 10 is used, and is opened (represented by a broken line in FIG. 1) when maintenance or jam is eliminated. The
そして、本例では画像形成装置本体1と両面ユニット3間にはダンパ装置20が配置されている。本例では、ダンパ装置20の主要部は、両面ユニット3内の支軸2の近傍に全体が水平状態をなすよう配置される。ダンパ装置20は、弾性部材であるコイルバネ部材21と、線状連結部材であるワイヤー状部材22と、偏向部材である滑車23と、係止部材であるピン部材24,25とを備える。
In this example, a damper device 20 is disposed between the image forming apparatus main body 1 and the duplex unit 3. In the present example, the main part of the damper device 20 is disposed in the vicinity of the support shaft 2 in the duplex unit 3 so as to be entirely horizontal. The damper device 20 includes a coil spring member 21 that is an elastic member, a wire member 22 that is a linear connection member, a pulley 23 that is a deflection member, and pin members 24 and 25 that are locking members.
本例では、図2に示すように、コイルバネ部材21は支軸2の軸線と平行に配置され、コイルバネ部材21は、図6に示すように、その一端がピン部材24に係止される。
In this example, as shown in FIG. 2, the coil spring member 21 is disposed parallel to the axis of the supporting shaft 2, the coil spring member 21, as shown in FIG. 6, is engaged with one end Gapi down member 24 .
また、本例では、支軸2近傍に偏向部材である滑車23が前記コイルバネ部材21を係止するピン部材25と同一の高さ位置となるように取り付けられている。滑車23はコイルバネ部材21の軸と垂直方向の回転軸を中心に回転可能とされている。さらに、コイルバネ部材21の他端にはワイヤー状部材22の一端が取り付けられ、前記滑車23を経て両面ユニット3方向に延設されている。即ち上記滑車23によりワイヤー状部材22はコイルバネ部材21から水平に伸び、滑車23によって略直角に方向変換されて、両面ユニット3方向に向かい両面ユニット3内のピン部材25に係止される。
Further, in this embodiment, it is mounted so that the pulley 23 is deflected member supporting shaft 2 near the same height position and the pin member 25 for locking the coil spring member 21. The pulley 23 is rotatable about a rotation axis perpendicular to the axis of the coil spring member 21. Further, one end of a wire-like member 22 is attached to the other end of the coil spring member 21 and extends in the direction of the duplex unit 3 through the pulley 23. In other words, the wire-like member 22 extends horizontally from the coil spring member 21 by the pulley 23, is direction-changed at a substantially right angle by the pulley 23, and is locked to the pin member 25 in the double-sided unit 3 toward the double-sided unit 3.
本例では、コイルバネ部材21の一端にフック部21aを形成し、ピン部材24に引っかけるようにして係止している。なお、ピン部材24にはコイルバネ部材21外れ止めのための凸環部24aが形成されている。また、ワイヤー状部材22の他端は、図7に示すように、両面ユニット3内壁に配置されたピン部材25に固定されている。本例では、ワイヤー状部材22の一端にをカシメ部22bで固定し環状部22aを形成し、この環状部22aでピン部材25に引っかけるようにして係止している。なお、ピン部材25にはワイヤー状部材22外れ止めのための凸環部25aが形成されている。 In this example, a hook portion 21 a is formed at one end of the coil spring member 21 and is locked so as to be hooked on the pin member 24. The pin member 24 has a convex ring portion 24a for preventing the coil spring member 21 from coming off. Further, the other end of the wire-like member 22 is fixed to a pin member 25 disposed on the inner wall of the duplex unit 3 as shown in FIG. In this example, one end of the wire-like member 22 is fixed with a caulking portion 22b to form an annular portion 22a, and the annular member 22a is engaged with the pin member 25 to be locked. The pin member 25 is formed with a convex ring portion 25a for preventing the wire-like member 22 from coming off.
また、上述したように、本例では、図2及び図5に示すように、ダンパ装置20のコイルバネ部材21、ワイヤー状部材22、滑車23、ピン部材24,25は支軸2から距離を開けず、近接した位置に配置するようにしている。即ち、本例のようにダンパ装置20を支軸2に近接して配置した場合には、ダンパ装置を支軸2から離して配置した場合よりワイヤー状部材の移動寸法が短く、コイルバネ部材21の必要伸張寸法が小さくなり、コイルバネ部材21の全長も短いものとすることができる。図5に、両面ユニット3を開状態としたときのワイヤー状部材22の正面図における長さ(図中l1)と、ダンパ装置を上部に取り付けた場合のワイヤー状部材(符号41)の長さ(l2)を示した。このように、ダンパ装置を支軸2近傍に取り付けることによって、コイルバネ部材21やワイヤー状部材22の寸法を小さいものとできる。 As described above, in this example, as shown in FIGS. 2 and 5, the coil spring member 21, the wire-like member 22, the pulley 23, and the pin members 24 and 25 of the damper device 20 are spaced apart from the support shaft 2. Instead, they are arranged in close proximity. That is, when the damper device 20 is arranged close to the support shaft 2 as in this example, the movement dimension of the wire-like member is shorter than when the damper device is arranged away from the support shaft 2, and the coil spring member 21 The required extension dimension is reduced, and the overall length of the coil spring member 21 can be shortened. In FIG. 5, the length (11 in the figure) in the front view of the wire-like member 22 when the duplex unit 3 is in the open state, and the length of the wire-like member (reference numeral 41) when the damper device is attached to the upper part. (L2) was shown. Thus, by attaching the damper device in the vicinity of the support shaft 2, the dimensions of the coil spring member 21 and the wire-like member 22 can be reduced.
参考例によれば、両面ユニット3を閉状態(図3の状態)から開状態(図4の状態)とすると、コイルバネ部材21が伸張される。このため両面ユニット3は弾性により閉方向に付勢され、両面ユニット3の回転の勢いを緩衝することができる。本実施例でも同様である。
According to the reference example, when the duplex unit 3 is changed from the closed state (the state shown in FIG. 3) to the opened state (the state shown in FIG. 4), the coil spring member 21 is extended. For this reason, the double-sided unit 3 is biased in the closing direction by elasticity, and the rotational momentum of the double-sided unit 3 can be buffered. The same applies to this embodiment.
なお、本例では、偏向部材として滑車23を例として説明したが、偏向部材は、滑車に限らず樹脂性のガイド部材を使用してもよい。ガイド部材は、ワイヤー状部材22の動きを滑らかにするため、十分なラウンド形状を有し摩擦抵抗の低い樹脂、例えばポリアセタール樹脂(POM)を使用することが望ましい。 In this example, the pulley 23 is described as an example of the deflection member. However, the deflection member is not limited to the pulley, and a resin guide member may be used. The guide member is desirably made of a resin having a sufficient round shape and low frictional resistance, such as polyacetal resin (POM), in order to smooth the movement of the wire-like member 22.
図9は本実施例に係る画像形装置においてユニットが閉じている状態を示す平面図、図10は図9に示した画像形成装置においてユニットが開いている状態を示す平面図である。
FIG. 9 is a plan view showing a state in which the unit is closed in the image forming apparatus according to the present embodiment, and FIG. 10 is a plan view showing a state in which the unit is opened in the image forming apparatus shown in FIG.
本例はダンパ装置30の主要部分を両面ユニット3内の下部に配置している。本例のダンパ装置30は、弾性部材であるコイルバネ部材31と、線状連結部材であるワイヤー状部材32と、偏向部材である滑車33と、係止部材であるピン部材34、35とを備える。本例において、ダンパ装置30は、図9及び図10に示すように、両面ユニット3の下方に略水平状態となるよう配置されている。即ちコイルバネ部材31は両面ユニット3内部に支軸2の近傍に支軸2の軸線と平行に配置され、かつ、その一端が両面ユニット3の内壁に設けられたピン部材35に係止されている。コイルバネ部材31の一端にフック部を形成し、ピン部材35に引っかけるようにして係止するものとしているが、他の方法によっても良い。
In this example, the main part of the damper device 30 is arranged in the lower part in the duplex unit 3. The damper device 30 of this example includes a coil spring member 31 that is an elastic member, a wire member 32 that is a linear coupling member, a pulley 33 that is a deflection member, and pin members 34 and 35 that are locking members. . In this example, as shown in FIGS. 9 and 10, the damper device 30 is disposed below the duplex unit 3 so as to be in a substantially horizontal state. That is, the coil spring member 31 is disposed inside the double-side unit 3 in the vicinity of the support shaft 2 in parallel with the axis of the support shaft 2, and one end thereof is locked to a pin member 35 provided on the inner wall of the double-side unit 3. . Co Irubane member 31 at one end to form a hook portion of, but it is assumed that locking as hooked on the pin member 35, may be by other methods.
また、本例では、両面ユニット3内には、支軸2近傍に偏向部材である滑車33が前記コイルバネ部材31を係止するピン部材35と同一の高さ位置となるように取り付けられている。滑車33はコイルバネ部材31の軸と垂直方向の回転軸を中心に回転可能とされている。さらに、コイルバネ部材31の他端にはワイヤー状部材32の一端が取り付けられ、前記滑車33を経て画像形成装置本体1方向に延設されている。即ち上記滑車33によりワイヤー状部材32はコイルバネ部材31から水平に伸び、滑車33によって略直角に方向変換されて、画像形成装置本体1方向に向かい画像形成装置本体1内のピン部材34に係止される。
Further, in this example, in the duplex unit 3, a pulley 33, which is a deflection member, is attached in the vicinity of the support shaft 2 so as to be at the same height as the pin member 35 that locks the coil spring member 31. . The pulley 33 is rotatable about a rotation axis perpendicular to the axis of the coil spring member 31. Further, one end of a wire-like member 32 is attached to the other end of the coil spring member 31 and extends in the direction of the image forming apparatus main body 1 through the pulley 33. That is, the wire-like member 32 extends horizontally from the coil spring member 31 by the pulley 33, is changed in direction substantially at right angles by the pulley 33, and is locked to the pin member 34 in the image forming apparatus main body 1 toward the image forming apparatus main body 1. Is done.
両面ユニット3を閉状態から開状態とすると、ワイヤー状部材32がコイルバネ部材31を弾性的に伸張しつつ引かれるので、両面ユニット3を閉状態(図9の状態)から開状態(図10の状態)となるとき、コイルバネ部材5が伸張される。このため両面ユニット3は弾性により閉方向に付勢され、両面ユニット3の回転の勢いが緩衝される。
When both surface units 3 from the closed state to the open state, since the wire-like member 32 is pulled while stretching the coil spring member 31 elastically, condition duplex unit 3 from the closed state (the state in FIG. 9) to open (FIG. 10 state) and Do Rutoki, the coil spring member 5 is stretched. For this reason, the duplex unit 3 is urged in the closing direction by elasticity, and the rotational force of the duplex unit 3 is buffered.
両面ユニット3側にコイルバネ部材31及び滑車33を設けるので、両面ユニット3がオプションである場合には、画像形成装置本体1にダンパ装置を取り付ける必要がなくコストダウンを図ることができる。
Since both sides unit 3 side provided coil spring member 31 and the pulley 33, when the duplex unit 3 is optional, it is possible to reduce the cost without the need to attach the damper device to the image forming apparatus main body 1.
また、ダンパ装置30を支軸2から離して配置した場合よりワイヤー状部材の必要な長さを短いものとすることができ、従ってコイルバネ部材31の全長を短いものとすることができる。また、比較的小さなスペースである両面ユニット3の余剰スペースに投影面積の小さなダンパ装置を配置することができる。さらに、両面ユニット3を開状態としたときワイヤー状部材32を、両面ユニット3の下方にわずかに露出させるだけですむので、両面ユニットの邪魔にならなくなりユニットを開いた際の作業性を向上させることができる。
Moreover, it can be shorter the necessary length of the wire-like member than when disposed away Da damper device 30 from the support shaft 2, thus may be shorter overall length of the coil spring member 31. Further, it is possible to arrange the small damper device of the projected area in relatively surplus space duplex unit 3 a small space. Furthermore, since the wire-like member 32 only needs to be slightly exposed below the double-sided unit 3 when the double-sided unit 3 is opened, the workability when the unit is opened is improved without interfering with the double-sided unit. be able to.
1・・・画像形成装置本体
2・・・支軸
3・・・両面ユニット
5・・・コイルバネ部材
10・・・画像形成装置
11・・・画像形成部
12・・・原稿読取部
13・・・用紙供給部
14・・・排紙部
20・・・ダンパ装置
21・・・コイルバネ部材
21a・・・フック部
22・・・ワイヤー状部材
22a・・・環状部
22b・・・カシメ部
23・・・滑車
24・・・ピン部材
24a・・・凸環部
25・・・ピン部材
25a・・・凸環部
30・・・ダンパ装置
31・・・コイルバネ部材
32・・・ワイヤー状部材
33・・・滑車
34・・・ピン部材
35・・・ピン部材
DESCRIPTION OF SYMBOLS 1 ... Image forming apparatus main body 2 ... Spindle 3 ... Double-sided unit 5 ... Coil spring member 10 ... Image forming apparatus 11 ... Image forming part 12 ... Document reading part 13 ...・ Paper supply unit 14... Paper discharge unit 20... Damper device 21... Coil spring member 21 a... Hook unit 22. ··· Pulley 24 ··· Pin member 24a ··· Convex ring portion 25 ··· Pin member 25a ··· Convex ring portion 30 ··· Damper device 31 ··· Coil spring member 32 · · · Wire-like member 33 ..Pull pulley 34 ... Pin member 35 ... Pin member
Claims (5)
前記両面ユニット内の下部に、
長手方向に伸縮する弾性部材であるコイルバネ部材と、
該コイルバネ部材の一端にその一端が接続された線状連結部材であるワイヤー状部材と、
該ワイヤー状部材の架設方向を変更する偏向部材である滑車と、
前記コイルバネ部材の他端を係止するための係止部材である一のピン部材とを備え、
前記装置本体側に、前記ワイヤー部材の一端を係止するための係止部材である他のピン部材を備え、
前記コイルバネ部材と、前記ワイヤー状部材と、前記滑車と、前記両ピン部材が前記両面ユニットの下方に略水平状態となるよう配置され、前記滑車により前記ワイヤー状部材が直角に偏向され、かつ前記両面ユニットの上部を斜め上方向へ閉じるように回動付勢することを特徴とするダンパ装置。
In a damper device provided in an apparatus having an apparatus main body and a double-sided unit configured to be openable and closable in a rotation direction around a support shaft in the apparatus main body,
At the bottom of the duplex unit,
A coil spring member that is an elastic member that expands and contracts in the longitudinal direction;
A wire-like member which is a linear connecting member having one end connected to one end of the coil spring member;
A pulley that is a deflection member that changes the erection direction of the wire-like member ;
A pin member that is a locking member for locking the other end of the coil spring member;
On the device body side, provided with another pin member that is a locking member for locking one end of the wire member,
The coil spring member, the wire-like member, the pulley, and the both pin members are arranged in a substantially horizontal state below the double-sided unit, and the wire-like member is deflected at right angles by the pulley, and A damper device characterized by rotating and energizing so that an upper part of a duplex unit is closed obliquely upward.
Claims 1 to include any of the damper device 3, the device body is an image forming apparatus, an image forming apparatus wherein the duplex unit is an addition unit.
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JP6244629B2 (en) | 2013-01-30 | 2017-12-13 | 株式会社リコー | Manual sheet feeder and image forming apparatus |
JP6409808B2 (en) | 2016-03-29 | 2018-10-24 | 京セラドキュメントソリューションズ株式会社 | Damper mechanism and image forming apparatus having the same |
IT201800006078A1 (en) * | 2018-06-06 | 2019-12-06 | GUIDE AND SUPPORT DEVICE FOR A FURNITURE DOOR WITH FOLDING DOWNWARD OPENING |
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JP2784049B2 (en) * | 1989-06-30 | 1998-08-06 | 三田工業株式会社 | Clamshell type image forming apparatus |
JPH0525970A (en) * | 1991-07-23 | 1993-02-02 | Toshiba Corp | Opening device in image forming apparatus |
JPH11163548A (en) * | 1997-11-28 | 1999-06-18 | Ricoh Elemex Corp | Buffer device for opening/closing member |
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