JP6815727B2

JP6815727B2 - Sheet transfer device and image forming device

Info

Publication number: JP6815727B2
Application number: JP2015255878A
Authority: JP
Inventors: 渡邊　潔; 潔渡邊
Original assignee: Canon Inc
Current assignee: Canon Inc
Priority date: 2015-02-24
Filing date: 2015-12-28
Publication date: 2021-01-20
Anticipated expiration: 2035-12-28
Also published as: JP2016155685A

Description

本発明は、開閉するガイド部材を備えるシート搬送装置、及び当該シート搬送装置を備える画像形成装置に関するものである。 The present invention relates to a sheet transfer device including a guide member that opens and closes, and an image forming device including the sheet transfer device.

従来、シート搬送装置は、搬送ガイドでのジャム処理のために搬送ガイドを構成するガイド部材を開く構成を備えている。ガイド部材の構成は、片手でジャム処理できるようにガイド部材を開いた状態で自立保持可能な構成を採用しているものもある。自立保持の方法は、ダンパーを用いて保持する構成（特許文献１）や、開いたガイド部材をマグネットキャッチで保持する構成もある。また、ガイドを備えるカバー部材を、カバー部材に設けられた被固定部材を、本体に設けられた固定部材に係合させ、当該係合を解除することによりガイドを開閉可能に設けた構成の開示がある（特許文献２）。 Conventionally, the sheet transfer device has a configuration in which a guide member constituting the transfer guide is opened for jam processing by the transfer guide. As for the structure of the guide member, there is also a structure in which the guide member can be independently held in an open state so that jam processing can be performed with one hand. As a method of self-supporting holding, there are a configuration in which a damper is used to hold the member (Patent Document 1) and a configuration in which an open guide member is held by a magnet catch. Further, disclosure of a configuration in which a cover member provided with a guide is engaged with a fixed member provided on the cover member with a fixing member provided on the main body, and the guide can be opened and closed by disengaging the engagement. (Patent Document 2).

特開２００８−８７８７５号公報Japanese Unexamined Patent Publication No. 2008-87875 特開２０１２−１６８５７０号公報Japanese Unexamined Patent Publication No. 2012-168570

しかしながら、ダンパーを用いた構成の場合には次のような問題がある。ダンパーは高価である。さらに、ダンパーの力によりガイド部材の重量を開いた状態で保持するため、ユーザーはダンパーの力に反してガイド部材を閉める必要がありユーザーの操作力が大きくなる。 However, in the case of a configuration using a damper, there are the following problems. Dampers are expensive. Further, since the weight of the guide member is held in an open state by the force of the damper, the user needs to close the guide member against the force of the damper, and the operating force of the user increases.

マグネットキャッチを用いた構成も、ダンパーを用いた構成と同様に、ユーザーはマグネットキャッチの力に反してガイド部材を閉める必要がありユーザーの操作力が大きくなるという問題がある。 Similar to the configuration using the damper, the configuration using the magnet catch also has a problem that the user needs to close the guide member against the force of the magnet catch, and the operating force of the user increases.

また、被固定部材を、固定部材と係合させ、当該係合を解除することによりガイドを開閉する構成においては次のような問題がある。解除の動作が一つの部材の操作のみで行われるため、ユーザーが、あやまって解除を行う部材に触れてしまい、ユーザーが意図しないガイド部材の開閉が発生するおそれがある。 Further, there are the following problems in the configuration in which the fixed member is engaged with the fixed member and the guide is opened and closed by disengaging the engagement. Since the release operation is performed only by operating one member, the user may accidentally touch the member to be released, and the guide member may be opened or closed unintentionally by the user.

上記課題に鑑み、本発明は、ユーザーが意図しないガイド部材の開閉が発生してしまうことを抑制することを目的とする。 In view of the above problems, an object of the present invention is to prevent the guide member from being opened and closed unintentionally by the user.

上記目的を達成するための本発明に係るシート搬送装置は、
搬送されるシートをガイドする第一のガイド部材と、前記第一のガイド部材に対向し前記搬送されるシートをガイドする第二のガイド部材であってジャム処理を行うために前記第一のガイド部材に対して閉じた位置から前記第一のガイド部材に対して開いた位置に移動可能に設けられた第二のガイド部材と、前記第二のガイド部材に対して移動可能に前記第二のガイド部材に設けられた第一の操作部材と、を有するガイドユニットと、
前記第一の操作部材と係合する第一の部材と、前記第一の部材に対して移動可能に前記第一の部材に設けられた第二の操作部材であって前記第二のガイド部材と係合する第二の操作部材と、を備え、前記第二のガイド部材を前記開いた位置に保持する保持部材と、
を有し、
前記第一の操作部材と前記第一の部材とが係合し且つ前記第二の操作部材と前記第二のガイド部材とが係合することにより前記保持部材は前記第二のガイド部材を保持し、
前記第一の操作部材が第１の方向に移動することにより前記第一の操作部材と前記第一の部材との係合が解除され、
前記第二の操作部材が前記第１の方向とは異なる第２の方向に移動することにより前記第二の操作部材と前記第二のガイド部材との係合が解除され、
前記第一の操作部材と前記第一の部材との係合、及び、第二の操作部材と前記第二のガイド部材との係合の両方が解除されることによって、前記保持部材による前記第二のガイド部材の保持が解除されることを特徴とする。 The sheet transfer device according to the present invention for achieving the above object is
A first guide member that guides the sheet to be conveyed and a second guide member that faces the first guide member and guides the sheet to be conveyed, and the first guide for jamming. a second guide member from the closed position relative to the member provided movably in the open position with respect to said first guide member, movable with said second and to said second guide member A guide unit having a first operating member provided on the guide member, and
A first member that engages with the first operating member, and a second operating member that is movable with respect to the first member and is provided on the first member and is the second guide member. a holding member and the second operating member comprises, for holding said second guide member prior KiHiraki Itakurai location to be engaged with,
Have,
It said holding member by said first member and said first operating member with engagement with and the second operating member and the second guide member engages the holding said second guide member And
Wherein the first operating member engaging with said first operating member and the first member is released by Rukoto move in a first direction,
Wherein the second operating member in the first direction is disengaged from the said different by Rukoto to move in a second direction the the second operating member second guide member,
When both the engagement between the first operating member and the first member and the engagement between the second operating member and the second guide member are disengaged, the holding member causes the first. holding the second guide member is released, characterized in Rukoto.

本発明によれば、ユーザーが意図しないガイド部材の開閉が発生してしまうことを抑制することができる。 According to the present invention, it is possible to prevent the guide member from being opened and closed unintentionally by the user .

本発明のシート処理装置を備える画像形成装置を示す断面図Sectional drawing which shows the image forming apparatus which includes the sheet processing apparatus of this invention. 本発明のシート処理装置を示す断面図Sectional drawing which shows the sheet processing apparatus of this invention 本発明の実施形態１に係るシート処理装置を画像形成装置側から見た側面図Side view of the sheet processing apparatus according to the first embodiment of the present invention as viewed from the image forming apparatus side. 本発明の実施形態１に係るラッチ機構を示す斜視図A perspective view showing a latch mechanism according to the first embodiment of the present invention. 本発明の実施形態１に係るラッチ機構を示す断面図Sectional drawing which shows the latch mechanism which concerns on Embodiment 1 of this invention. 本発明の実施形態１に係るラッチ機構を示す断面図Sectional drawing which shows the latch mechanism which concerns on Embodiment 1 of this invention. 本発明の実施形態２に係るラッチ機構を示す断面図Sectional drawing which shows the latch mechanism which concerns on Embodiment 2 of this invention. 本発明の実施形態２に係るラッチ機構を示す断面図Sectional drawing which shows the latch mechanism which concerns on Embodiment 2 of this invention. 本発明の実施形態３に係るラッチ機構を示す断面図Sectional drawing which shows the latch mechanism which concerns on Embodiment 3 of this invention. 本発明の実施形態３に係るラッチ機構を示す断面図Sectional drawing which shows the latch mechanism which concerns on Embodiment 3 of this invention. 本発明の実施形態４のシート処理装置を画像形成装置側から見た側面図Side view of the sheet processing apparatus according to the fourth embodiment of the present invention as viewed from the image forming apparatus side. 本発明の実施形態４に係るラッチ機構を示す断面図Sectional drawing which shows the latch mechanism which concerns on Embodiment 4 of this invention. 本発明の実施形態４に係るラッチ機構を示す断面図Sectional drawing which shows the latch mechanism which concerns on Embodiment 4 of this invention.

〔実施形態１〕
以下、本発明を実施するための形態について図面を用いて詳細に説明する。 [Embodiment 1]
Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

＜画像形成装置＞
図１は画像形成装置及びシート処理装置の構成図である。本実施形態では、電子写真方式の画像形成装置である。図１に示すように、画像形成装置は、白黒／カラー画像形成を行う画像形成装置本体６００と、これに接続したシート処理装置２００を有している。このため、画像形成装置本体６００から排出されるシートは、オンラインに接続されたシート処理装置２００で処理することができる。なお、画像形成装置本体６００は、シート処理装置２００を排出口に接続しないで、単独でも使用できるようになっている。また、画像形成装置本体６００は、シート処理装置２００をシート排出装置として一体に組み込んでもよい。ここで、ユーザーが画像形成装置本体６００に対して各種入力／設定を行うため操作部６０１に臨む位置を画像形成装置の正面手前側（以下、手前側）といい、装置背面側を奥側という。図１は、装置手前側から見た画像形成装置の構成を示したものである。シート処理装置２００は画像形成装置本体６００の側部に接続される。 <Image forming device>
FIG. 1 is a block diagram of an image forming apparatus and a sheet processing apparatus. In this embodiment, it is an electrophotographic image forming apparatus. As shown in FIG. 1, the image forming apparatus includes an image forming apparatus main body 600 that forms a black-and-white / color image, and a sheet processing apparatus 200 connected thereto. Therefore, the sheet discharged from the image forming apparatus main body 600 can be processed by the sheet processing apparatus 200 connected online. The image forming apparatus main body 600 can be used alone without connecting the sheet processing apparatus 200 to the discharge port. Further, the image forming apparatus main body 600 may integrally incorporate the sheet processing apparatus 200 as a sheet discharging apparatus. Here, the position facing the operation unit 601 for the user to perform various inputs / settings to the image forming apparatus main body 600 is referred to as the front side (hereinafter referred to as the front side) of the image forming apparatus, and the back side of the apparatus is referred to as the back side. .. FIG. 1 shows the configuration of the image forming apparatus as seen from the front side of the apparatus. The sheet processing device 200 is connected to the side portion of the image forming device main body 600.

画像形成装置本体６００内のカセット９０９ａ、９０９ｂから供給されたシートＳは、それぞれ画像形成部を構成するイエロー、マゼンタ、シアン、ブラックの感光ドラム９１４ａ〜９１４ｄ等によって、４色のトナー像を転写される。そして、定着器９０４に搬送されてトナー画像を定着され、片面の画像形成モードであれば、そのまま、排出ローラ対９０７によりシート処理装置２００に送られる。両面の画像形成モードであれば、シートＳは定着器９０４から反転ローラ９０５に受け渡され、シートの搬送方向の後端が反転フラッパ部Ｐを超えると反転ローラ９０５を反回転させ、搬送方向と逆の両面搬送ローラ９０６ａ〜９０６ｆの方向へ搬送する。そして、再度、裏面にイエロー、マゼンタ、シアン、ブラックの感光ドラム９１４ａ〜９１４ｄ等によって、４色のトナー像を転写される。両面に転写されたシートＳは再度定着器９０４に搬送されてトナー画像を定着し、排出ローラ対９０７によりシート処理装置２００に送られる。 The sheets S supplied from the cassettes 909a and 909b in the image forming apparatus main body 600 are transferred with toner images of four colors by the yellow, magenta, cyan, and black photosensitive drums 914a to 914d, respectively, which constitute the image forming portion. Toner. Then, the toner image is conveyed to the fixing device 904 to be fixed, and in the single-sided image forming mode, the toner image is sent to the sheet processing device 200 as it is by the discharge roller pair 907. In the double-sided image forming mode, the sheet S is delivered from the fuser 904 to the reversing roller 905, and when the rear end of the sheet in the transporting direction exceeds the reversing flapper portion P, the reversing roller 905 is rotated counter-rotated to the transfer direction. It is conveyed in the opposite directions of the double-sided transfer rollers 906a to 906f. Then, the toner images of four colors are transferred to the back surface again by the photosensitive drums 914a to 914d of yellow, magenta, cyan, and black. The sheet S transferred to both sides is conveyed to the fixing device 904 again to fix the toner image, and is sent to the sheet processing device 200 by the discharge roller pair 907.

＜シート処理装置＞
図２はシート処理装置２００の断面図である。シート処理装置２００は、画像形成装置本体６００から排出されたシートを順に取り込み、取り込んだシートに処理部２６０で処理を行う処理パスＢと、処理をせずに搬送方向下流のトレイ２９０に排出するバイパスＡを備えられている。これらのパスはフラッパ２０１で切り替えられる。シートの処理には、シートに穴をあける穿孔処理、シートに押し筋をつける筋付け処理がある。 <Sheet processing device>
FIG. 2 is a cross-sectional view of the sheet processing apparatus 200. The sheet processing device 200 sequentially takes in the sheets discharged from the image forming apparatus main body 600, and discharges the taken-in sheets to the processing pass B in which the processing unit 260 processes the imported sheets and to the tray 290 downstream in the transport direction without processing. It is equipped with a bypass A. These paths are switched by the flapper 201. The sheet processing includes a perforation process for making a hole in the sheet and a scoring process for making a push line on the sheet.

シート処理装置２００でのシート処理は、画像形成装置本体６００に設けられた操作部６０１によるユーザーの設定に応じて動作する。 The sheet processing in the sheet processing device 200 operates according to the user's setting by the operation unit 601 provided in the image forming apparatus main body 600.

画像形成装置本体６００から排紙されたシートは、シート処理装置２００の入口ローラ対２０２ａ、２０２ｂに受け渡される。シートに何も処理をしない場合はフラッパ２０１によりバイパスＡに切り替えられ、搬送ローラ対２０３ａ、２０３ｂ、２０４ａ、２０４ｂにより搬送され、搬送方向下流のトレイ２９０に排出される。 The sheets discharged from the image forming apparatus main body 600 are delivered to the inlet rollers pairs 202a and 202b of the sheet processing apparatus 200. When no processing is performed on the sheet, the sheet is switched to bypass A by the flapper 201, transported by the transport roller pairs 203a, 203b, 204a, 204b, and discharged to the tray 290 downstream in the transport direction.

シートに処理を施す場合はフラッパ２０１により処理パスＢに切り替えられ、シートは搬送ローラ対２０５ａ、２０５ｂ、２０６ａ、２０６ｂにより処理部２６０に搬送され、処理される。処理されたシートは再び搬送され、搬送ローラ対２０７ａ、２０７ｂ、２０８ａ、２０８ｂ、２０４ａ、２０４ｂにより搬送され、搬送方向下流のトレイ２９０に排出される。 When the sheet is processed, it is switched to the processing path B by the flapper 201, and the sheet is conveyed to the processing unit 260 by the conveying roller pairs 205a, 205b, 206a, 206b and processed. The processed sheet is transported again, transported by the transport roller pairs 207a, 207b, 208a, 208b, 204a, 204b, and discharged to the tray 290 downstream in the transport direction.

バイパスＡは上搬送ガイド２１１（第二のガイド部材）と上搬送ガイド２１１に搭載された従動コロ２０２ａ、２０３ａ、２０４ａ、そして、下搬送ガイド２１２（第一のガイド部材）と駆動ローラ２０２ｂ、２０３ｂ、２０４ｂで構成される。図３は、上搬送ガイド２１１と下搬送ガイド２１２を画像形成装置側から見た（図２のαの方向から見た）側面図、図４は上搬送ガイド２１１と下搬送ガイド２１２の斜視図である。図３、図４のように、上搬送ガイド２１１は支軸２１０で回動可能に支持されている。上搬送ガイド２１１は、対向する下搬送ガイド２１２に対して開閉可能に設けられており、上搬送ガイド２１１は、下搬送ガイド２１２に対して上方に開くようになっている。上搬送ガイド２１１が、下搬送ガイド２１２に対して閉じた位置においては、上搬送ガイド２１１と下搬送ガイド２１２は、不図示のマグネットの磁力によりお互いのガイドが閉じた状態に保持される。上搬送ガイド２１１を開いた位置には保持部材２１４が設置されており、上搬送ガイド２１１のガイド機構２１３が係合するようになっている。このため、上搬送ガイド２１１は開いたまま保持され、ジャム処理時の操作性を向上させている。上搬送ガイド２１１は金属性の板状のガイドである。 Bypass A includes the upper transfer guide 211 ( second guide member ), the driven rollers 202a, 203a, 204a mounted on the upper transfer guide 211 , and the lower transfer guide 212 ( first guide member) and drive rollers 202b, 203b. , 204b. FIG. 3 is a side view of the upper transport guide 211 and the lower transport guide 212 as viewed from the image forming apparatus side (viewed from the direction of α in FIG. 2), and FIG. 4 is a perspective view of the upper transport guide 211 and the lower transport guide 212. Is. As shown in FIGS. 3 and 4, the upper transfer guide 211 is rotatably supported by the support shaft 210. The upper transport guide 211 is provided so as to be openable and closable with respect to the opposing lower transport guide 212, and the upper transport guide 211 opens upward with respect to the lower transport guide 212. When the upper transport guide 211 is closed with respect to the lower transport guide 212, the upper transport guide 211 and the lower transport guide 212 are held in a closed state by the magnetic force of a magnet (not shown). A holding member 214 is installed at a position where the upper transport guide 211 is opened, and the guide mechanism 213 of the upper transport guide 211 is engaged with the holding member 214. Therefore, the upper transport guide 211 is held in an open state, improving operability during jam processing. The upper transport guide 211 is a metallic plate-shaped guide.

処理パスＢについては、処理部２６０の入口側のパスが入口固定搬送ガイド２４２、入口可動搬送ガイド２４１で構成されている。入口可動搬送ガイド２４１は、上搬送ガイド２１１と同様に回動でき、開いたときに保持部２４４と入口可動搬送ガイド２４１の被保持部２４３が係合して開いたままで保持できるようになっている。処理部２６０の出口側のパスは出口固定搬送ガイド２７２、出口可動搬送ガイド２７１で構成されている。出口可動搬送ガイド２７１は上搬送ガイド２１１と同様に回動でき、開いたときに保持部２７４と出口可動搬送ガイド２７１の被保持部２７３が係合して開いたままで保持できるようになっている。 Regarding the processing path B, the path on the entrance side of the processing unit 260 is composed of an inlet fixed transfer guide 242 and an inlet movable transfer guide 241. The inlet movable transport guide 241 can rotate in the same manner as the upper transport guide 211, and when opened, the holding portion 244 and the held portion 243 of the inlet movable transport guide 241 are engaged and can be held in an open state. There is. The exit-side path of the processing unit 260 is composed of an outlet fixed transfer guide 272 and an outlet movable transfer guide 271. The outlet movable transport guide 271 can rotate in the same manner as the upper transport guide 211, and when opened, the holding portion 274 and the held portion 273 of the outlet movable transport guide 271 are engaged and can be held in an open state. ..

＜ラッチ機構の説明＞
図５、図６は実施形態１に係るラッチ機構の構成を示した断面図であり、上搬送ガイド２１１が支軸２１０を支点として上方に回動した状態を示した図である。図５、図６は、図４のＡ−Ａ断面である。 <Explanation of latch mechanism>
5 and 6 are cross-sectional views showing the configuration of the latch mechanism according to the first embodiment, and is a view showing a state in which the upper transport guide 211 is rotated upward with the support shaft 210 as a fulcrum. 5 and 6 are cross sections taken along the line AA of FIG.

図５は上搬送ガイド２１１を保持部材２１４とガイド機構２１３により開いた位置で保持している状態の図である。 FIG. 5 is a diagram showing a state in which the upper transport guide 211 is held in an open position by the holding member 214 and the guide mechanism 213.

図６は、保持部材２１４とガイド機構２１３の保持が解除された状態を示している図である。
保持部材２１４は、シート処理装置２００の不図示のフレームに固定された保持部ステイ２２５（第一の部材）と、保持部ステイ２２５に対して回動可能な操作ステイ３２０（第二の操作部材）を備える。保持部ステイ２２５から立ち上がった支持板３１１は支軸３１２を有しており、操作ステイ３２０の回動穴３２３に嵌合して操作ステイ３２０を回動可能に支持している。操作ステイ３２０にはバネ掛け部３２４、保持部ステイ２２５にはバネ掛け部３１６があり、バネ掛け部３２４とバネ掛け部３１６とに引っ張りバネ３１７（付勢部）が掛けられている。そして、操作ステイ３２０は引っ張りバネ３１７の弾性力により図５中矢印Ｇ方向に付勢されている。操作ステイ３２０にはユーザーが操作をする部分である操作部３２１（第二の操作部）と係合部３２２（第二の係合部）があり、操作部３２１を図６の矢印Ｈ方向（第二の方向）に押すと、係合部３２２は保持部ステイ２２５の切欠き穴３１５内を移動する。 FIG. 6 is a diagram showing a state in which the holding member 214 and the guide mechanism 213 are released from being held.
The holding member 214 includes a holding portion stay 225 (first member) fixed to a frame (not shown) of the sheet processing device 200, and an operating stay 320 (second operating member) that is rotatable with respect to the holding portion stay 225. ) Is provided. The support plate 311 rising from the holding portion stay 225 has a support shaft 312, and is fitted into the rotation hole 323 of the operation stay 320 to rotatably support the operation stay 320. The operation stay 320 has a spring hooking portion 324, and the holding portion stay 225 has a spring hooking portion 316, and a tension spring 317 (urging portion) is hung on the spring hooking portion 324 and the spring hooking portion 316. The operation stay 320 is urged in the direction of arrow G in FIG. 5 by the elastic force of the tension spring 317. The operation stay 320 has an operation unit 321 (second operation unit) and an engagement unit 322 (second engagement unit), which are parts operated by the user, and the operation unit 321 is directed by the arrow H in FIG. When pushed in the second direction), the engaging portion 322 moves in the notch hole 315 of the holding portion stay 225.

ガイド機構２１３は、上搬送ガイド２１１と、上搬送ガイド２１１に対して回動可能に支持されたガイド操作ステイ３０４（第一の操作部材）を備える。上搬送ガイド２１１から立ち上がった支持板３０１は支軸３０２を有しており、ガイド操作ステイ３０４の回動穴３０７に嵌合してガイド操作ステイ３０４を回動可能に支持している。ガイド操作ステイ３０４には操作部３０５（第一の操作部）と被係合部３０６（第一の被係合部）があり、操作部３０５を図６の矢印Ｉ方向（第一の方向）に押すと、被係合部３０６は保持部ステイ２２５の切欠き穴３１４内を移動する。操作部３０５と操作部３２１は近接した位置に設けられている。ここで言う近接した位置とは、ユーザーが片手で操作部３０５と操作部３２１を同時に触ることができる程度の位置関係にあることを指す。二つの操作部３０５・３２１を近接した位置に設けることでユーザーは片手で操作を行うことができる。例えば、操作部３０５と操作部３２１との距離が１００ｍｍ以下の距離となるように、操作部３０５と操作部３２１は設けられる。 The guide mechanism 213 includes an upper transport guide 211 and a guide operation stay 304 (first operating member) rotatably supported by the upper transport guide 211. The support plate 301 rising from the upper transport guide 211 has a support shaft 302, which fits into the rotation hole 307 of the guide operation stay 304 to rotatably support the guide operation stay 304. The guide operation stay 304 has an operation portion 305 (first operation portion) and an engaged portion 306 (first engaged portion), and the operation portion 305 is directed by the arrow I in FIG. 6 (first direction). When pushed to, the engaged portion 306 moves in the notch hole 314 of the holding portion stay 225. The operation unit 305 and the operation unit 321 are provided at close positions. The close position referred to here means that the user can touch the operation unit 305 and the operation unit 321 at the same time with one hand. By providing the two operation units 305 and 321 at close positions, the user can operate with one hand. For example, the operation unit 305 and the operation unit 321 are provided so that the distance between the operation unit 305 and the operation unit 321 is 100 mm or less.

上搬送ガイド２１１の開いた位置での保持状態では、引っ張りバネ３１７により操作ステイ３２０が付勢され、係合部３２２が上搬送ガイド２１１の固定係合部３０３（第二の被係合部）に係合する。ガイド操作ステイ３０４は被係合部３０６の側よりも操作部３０５の側が重くなっており、図６においてガイド操作ステイ３０４は支軸３０２を中心に常に矢印Ｊ方向に回転するモーメントが付与されるようになっている。これにより被係合部３０６が保持部ステイ２２５の固定係合部３１３（第一の係合部）に係合する。上搬送ガイド２１１を二か所の係合部で係合することで、操作ステイ３２０とガイド操作ステイ３０４のどちらかを操作しただけでは保持状態が解除されないようになっている。例えば、ユーザーがガイド操作ステイ３０４を触ってしまい、操作ステイ３０４の被係合部３０６が固定係合部３１３から外れたとしても、固定係合部３０３と係合部３２２は係合しているため保持状態は解除されない。 In the holding state of the upper transport guide 211 in the open position, the operation stay 320 is urged by the tension spring 317, and the engaging portion 322 is the fixed engaging portion 303 (second engaged portion) of the upper transport guide 211. Engage in. The guide operation stay 304 is heavier on the side of the operation portion 305 than on the side of the engaged portion 306, and in FIG. 6, the guide operation stay 304 is given a moment of always rotating in the arrow J direction about the support shaft 302. It has become like. As a result, the engaged portion 306 engages with the fixed engaging portion 313 (first engaging portion) of the holding portion stay 225. By engaging the upper transport guide 211 with the engaging portions at two places, the holding state is not released only by operating either the operation stay 320 or the guide operation stay 304. For example, even if the user touches the guide operation stay 304 and the engaged portion 306 of the operation stay 304 is disengaged from the fixed engaging portion 313, the fixed engaging portion 303 and the engaging portion 322 are engaged. Therefore, the holding state is not released.

複数の操作部を一緒に操作することにより係合が解除される構成であるため、ユーザーが誤って一つの操作部のみを操作したとしても搬送ガイドの係合状態が解除され、搬送ガイドが対向するガイドに急に落下して破損するということを抑制できる。また、それぞれの操作部の操作の方向が異なるため、ユーザーが誤って操作部を触ったとしても搬送ガイドの係合状態が解除されない。 Since the configuration is such that the engagement is released by operating a plurality of operation units together, even if the user accidentally operates only one operation unit, the engagement state of the transfer guide is released and the transfer guides face each other. It is possible to prevent the guide from suddenly falling and being damaged. Further, since the operation direction of each operation unit is different, the engaged state of the transport guide is not released even if the user accidentally touches the operation unit.

なお、引っ張りバネ３１７は係合状態を保持するために設置されている。ユーザーが操作部３０５を操作してガイド操作ステイ３０４を保持部ステイ２２５に係合させる際に、上搬送ガイド２１１の係合部３０３は、引っ張りバネ３１７の張力に反して保持部ステイ２２５の係合部３２２の斜面部３２２ａに沿って動く。そして上搬送ガイド２１１の係合部３０３が斜面部３２２ａを乗り越えると、操作ステイ３０４の係合部３０３と保持部ステイ２２５の係合部３２２は引っ張りバネ３１７により係合状態が保持される。そのためユーザーは、係合のための操作を別途する必要が無く操作負担が減る。なお、引っ張りバネを設けない構成では、係合部３２２と固定係合部３０３を係合時に食い込む関係（図５の関係）にし、操作ステイ３２０を操作しないような構成とする。 The tension spring 317 is installed to maintain the engaged state. When the user operates the operation unit 305 to engage the guide operation stay 304 with the holding portion stay 225, the engaging portion 303 of the upper transport guide 211 engages with the holding portion stay 225 against the tension of the tension spring 317. It moves along the slope portion 322a of the joint portion 322. When the engaging portion 303 of the upper transport guide 211 gets over the slope portion 322a, the engaging portion 303 of the operation stay 304 and the engaging portion 322 of the holding portion stay 225 are held in an engaged state by the tension spring 317. Therefore, the user does not need to separately perform the operation for engagement, and the operation load is reduced. In the configuration in which the tension spring is not provided, the engaging portion 322 and the fixed engaging portion 303 are engaged with each other (the relationship shown in FIG. 5) so that the operation stay 320 is not operated.

係合を解除する際は、操作ステイ３２０の操作部３２１を矢印Ｈ方向に押しながら、ガイド操作ステイ３０４の操作部３０５を矢印Ｉ方向に押して係合部３２２、３０６を回動させる。本実施形態の構成によれば、ダンパーやマグネットキャッチを使った構成のように、ダンパーやマグネットキャッチの力に反してユーザーが力を加える必要が無いため、ユーザーは小さな操作力で上搬送ガイド２１１を閉じることができる。また、係合を解除する動作が、操作ステイ３２０の操作部３２１と、ガイド操作ステイ３０４の操作部３０５を握る動作で行うことができるため、解除の操作がユーザーに分かりやすい。 When disengaging, the operation portion 321 of the operation stay 320 is pushed in the direction of arrow H, and the operation portion 305 of the guide operation stay 304 is pushed in the direction of arrow I to rotate the engagement portions 322 and 306. According to the configuration of the present embodiment, unlike the configuration using the damper and the magnet catch, the user does not need to apply a force against the force of the damper and the magnet catch, so that the user does not need to apply a force with a small operating force. Can be closed. Further, since the disengagement operation can be performed by grasping the operation unit 321 of the operation stay 320 and the operation unit 305 of the guide operation stay 304, the disengagement operation is easy for the user to understand.

〔実施形態２〕
実施形態２は、実施形態１と保持部材２１４とガイド機構２１３によるラッチ機構のみ異なり、その他の構成は実施形態１と同じである。したがって、ラッチ機構のみ説明を行い、実施形態１と同様の構成については説明を省略する。 [Embodiment 2]
The second embodiment differs from the first embodiment only in the latch mechanism by the holding member 214 and the guide mechanism 213, and the other configurations are the same as those in the first embodiment. Therefore, only the latch mechanism will be described, and the description of the same configuration as that of the first embodiment will be omitted.

図７、図８は、後述する保持部材２１４とガイド機構２１３によるラッチ機構の構成を示した断面図である。図７、図８は、上搬送ガイド２１１が支軸２１０を支点として上方に回動した状態を示している。 7 and 8 are cross-sectional views showing the configuration of a latch mechanism by the holding member 214 and the guide mechanism 213, which will be described later. 7 and 8 show a state in which the upper transport guide 211 is rotated upward with the support shaft 210 as a fulcrum.

図７は上搬送ガイド２１１を保持部材２１４により開いた位置で保持している状態の図である。 FIG. 7 is a diagram showing a state in which the upper transport guide 211 is held in an open position by the holding member 214.

図８は、保持部材２１４とガイド機構２１３の保持が解除された状態を示している図である。
保持部材２１４は、シート処理装置２００の不図示のフレームに固定された保持部ステイ２２５と、保持部ステイ２２５に対してスライド移動可能な操作ステイ２３０（第二の操作部材）を備えている。保持部ステイ２２５から立ち上がった支持板２２８は２本の支軸２２９を有しており、支軸２２９が操作ステイ２３０のスライドスリット２３５に嵌合して操作ステイ２３０をスライド可能に支持している。操作ステイ２３０にはバネ掛け部２３３、保持部ステイ２２５にはバネ掛け部２２７が設けられており、バネ掛け部２３３とバネ掛け部２２７とに引っ張りバネ２３４（付勢部）が掛けられている。そして、操作ステイ２３０は引っ張りバネ２３４の弾性力により図中矢印Ｃ方向に付勢されている。操作ステイ２３０には操作部２３１（第二の操作部）と係合部２３２（第一の係合部）があり、操作部２３１を図８の矢印Ｅ方向（第二の方向）に押すと、操作ステイ２３０は保持部ステイ２２５の切欠き穴２２６内を移動量Ｌ２だけ移動する。 FIG. 8 is a diagram showing a state in which the holding member 214 and the guide mechanism 213 are released from being held.
The holding member 214 includes a holding portion stay 225 fixed to a frame (not shown) of the sheet processing device 200, and an operating stay 230 (second operating member) that can be slidably moved with respect to the holding portion stay 225. The support plate 228 rising from the holding portion stay 225 has two support shafts 229, and the support shaft 229 fits into the slide slit 235 of the operation stay 230 to slidably support the operation stay 230. .. The operation stay 230 is provided with a spring hooking portion 233, and the holding portion stay 225 is provided with a spring hooking portion 227, and a tension spring 234 (urging portion) is hung on the spring hooking portion 233 and the spring hooking portion 227. .. The operation stay 230 is urged in the direction of arrow C in the figure by the elastic force of the tension spring 234. The operation stay 230 has an operation unit 231 (second operation unit) and an engagement unit 232 (first engagement unit), and when the operation unit 231 is pushed in the arrow E direction (second direction) in FIG. , The operation stay 230 moves in the notch hole 226 of the holding portion stay 225 by the movement amount L2.

ガイド機構２１３は、上搬送ガイド２１１と、上搬送ガイド２１１における支軸２１０とは反対側の端部に設けられ、上搬送ガイド２１１に対してスライド移動可能に支持されたガイド操作ステイ２１５（第一の操作部材）とを備えている。上搬送ガイド２１１から立ち上がった支持板２２２は支軸２２１を有しており、ガイド操作ステイ２１５のスライドスリット２１９に嵌合してガイド操作ステイ２１５をスライド移動可能に支持している。ガイド操作ステイ２１５にはバネ掛け部２１７、上搬送ガイド２１１にはバネ掛け部２２０があり、バネ掛け部２１７とバネ掛け部２２０とに引っ張りバネ２２３（付勢部）が掛けられている。そして、ガイド操作ステイ２１５は引っ張りバネ２２３の弾性力により図中矢印Ｄ方向に付勢されている。ガイド操作ステイ２１５には操作部２１６（第一の操作部）と係合部２１８（第一の被係合部）があり、操作部２１６を図８の矢印Ｆ方向（第一の方向）に押すと、ガイド操作ステイ２１５は移動量Ｌ１だけスライド移動する。操作部２１６と操作部２３１は近接した位置に設けられている。例えば、例えば、操作部２１６と操作部２３１とが、１００ｍｍ以下の距離となるように設けられる。 The guide mechanism 213 is provided at the ends of the upper transport guide 211 and the upper transport guide 211 on the opposite side of the support shaft 210, and is supported by the upper transport guide 211 so as to be slidable. It is equipped with one operating member). The support plate 222 rising from the upper transport guide 211 has a support shaft 221 and is fitted into the slide slit 219 of the guide operation stay 215 to support the guide operation stay 215 so as to be slidable. The guide operation stay 215 has a spring hooking portion 217, and the upper transport guide 211 has a spring hooking portion 220, and a tension spring 223 (a urging portion) is hung on the spring hooking portion 217 and the spring hooking portion 220. The guide operation stay 215 is urged in the direction of arrow D in the figure by the elastic force of the tension spring 223. The guide operation stay 215 has an operation portion 216 (first operation portion) and an engagement portion 218 (first engaged portion), and the operation portion 216 is directed in the arrow F direction (first direction) in FIG. When pressed, the guide operation stay 215 slides by the amount of movement L1. The operation unit 216 and the operation unit 231 are provided at close positions. For example, the operation unit 216 and the operation unit 231 are provided so as to have a distance of 100 mm or less.

図７に示す、上搬送ガイド２１１の開いた位置での保持状態では、引っ張りバネ２３４により操作ステイ２３０が付勢され、引っ張りバネ２２３によりガイド操作ステイ２１５が付勢されて、係合部２３２と２１８が係合することで上搬送ガイド２１１を保持している。この係合関係にある操作ステイ２３０とガイド操作ステイ２１５は操作ステイ２３０とガイド操作ステイ２１５のどちらかを操作しただけでは外れないようになっている。係合の解除に必要な操作ステイ２３０とガイド操作ステイ２１５の操作部２３１・２１６のスライド量は、次の３つの関係式を満たすように設定されている。
１）Ｌ＞Ｌ１
２）Ｌ＞Ｌ２
３）Ｌ＜Ｌ１＋Ｌ２
このような関係となっているため、ユーザーがガイド操作ステイ２１５を触ってしまい、ガイド操作ステイ２１５を移動量Ｌ１だけ移動させてしまったとしても、操作ステイ２３０とガイド操作ステイ２１５の係合が外れるスライド量Ｌよりも小さく、係合が解除されることはない。操作ステイ２３０のみをユーザーが触った場合でも同様に係合は解除されない。 In the holding state of the upper transport guide 211 in the open position shown in FIG. 7, the operation stay 230 is urged by the tension spring 234, the guide operation stay 215 is urged by the tension spring 223, and the engaging portion 232 The upper transfer guide 211 is held by engaging with the 218. The operation stay 230 and the guide operation stay 215 in this engaging relationship cannot be disengaged only by operating either the operation stay 230 or the guide operation stay 215. The slide amounts of the operation stays 230 and the operation units 231 and 216 of the guide operation stay 215 required for disengagement are set so as to satisfy the following three relational expressions.
1) L> L1
2) L> L2
3) L <L1 + L2
Because of this relationship, even if the user touches the guide operation stay 215 and moves the guide operation stay 215 by the movement amount L1, the operation stay 230 and the guide operation stay 215 are still engaged. It is smaller than the disengaged slide amount L, and the engagement is not disengaged. Even if the user touches only the operation stay 230, the engagement is not released in the same manner.

複数の操作部を一緒に操作することにより係合が解除される構成であるため、ユーザーが誤って操作部の一つを操作したとしても搬送ガイドの係合状態が解除され、搬送ガイドが対向するガイドに急に落下して破損するということを抑制できる。このような、搬送ガイドの破損は、ガイドを金属で形成した場合に顕著な問題となる。なぜならば、金属で形成されたガイドは樹脂で形成されたガイドよりも重くなるため、落下による衝撃が大きくなるためである。 Since the configuration is such that the engagement is released by operating a plurality of operation units together, even if the user mistakenly operates one of the operation units, the engagement state of the transfer guide is released and the transfer guides face each other. It is possible to prevent the guide from suddenly falling and being damaged. Such breakage of the transport guide becomes a remarkable problem when the guide is made of metal. This is because the guide made of metal is heavier than the guide made of resin, so that the impact due to dropping is large.

なお、引っ張りバネ２２３と２３４はガイド操作ステイ２１５、操作ステイ２３０の係合状態を保持するために設置されている。ユーザーが操作部２１６を操作してガイド操作ステイ２１５を操作ステイ２３０に係合させる際に、ガイド操作ステイ２１５の被係合部２１８は、引っ張りバネ２２３と２３４の張力に反して操作ステイ２３０の係合部２３２の斜面部２３２ａに沿って動く。そしてガイド操作ステイ２１５の被係合部２１８が斜面部２３２ａを乗り越えると、ガイド操作ステイ２１５の被係合部２１８と操作ステイ２３０の係合部２３２は引っ張りバネ２２３と２３４により係合状態が保持される。そのためユーザーは、係合のための操作を別途する必要が無く操作負担が減る。引張りバネがない場合は、操作ステイ２３０とガイド操作ステイ２１５とをユーザーが適宜動かして、係合状態を作る必要がある。 The tension springs 223 and 234 are installed to hold the engaged state of the guide operation stay 215 and the operation stay 230. When the user operates the operation unit 216 to engage the guide operation stay 215 with the operation stay 230, the engaged portion 218 of the guide operation stay 215 is of the operation stay 230 against the tension of the tension springs 223 and 234. It moves along the slope portion 232a of the engaging portion 232. When the engaged portion 218 of the guide operation stay 215 gets over the slope portion 232a, the engaged portion 218 of the guide operation stay 215 and the engaging portion 232 of the operation stay 230 are maintained in an engaged state by the tension springs 223 and 234. Will be done. Therefore, the user does not need to separately perform the operation for engagement, and the operation load is reduced. When there is no tension spring, it is necessary for the user to appropriately move the operation stay 230 and the guide operation stay 215 to create an engaged state.

係合を解除する際は、操作ステイ２３０の操作部２３１を矢印Ｅ方向に押しながら、ガイド操作ステイ２１５の操作部２１６を矢印Ｆ方向に押して係合部２３２、２１８をスライドさせる。本実施形態の構成によれば、ダンパーやマグネットキャッチを使った構成のように、ダンパーやマグネットキャッチの力に反してユーザーが力を加える必要が無いため、ユーザーは小さな操作力で上搬送ガイド２１１を閉じることができる。小さな操作力で係合を解除できるが、係合の解除には複数の操作部で、異なる方向への操作が必要となる。そのため、ユーザーが意図せず一方の操作部を触ってしまったとしても、ガイド部材の意図しない保持状態の解除の発生を抑制できる。 When disengaging, while pushing the operation portion 231 of the operation stay 230 in the direction of arrow E, the operation portion 216 of the guide operation stay 215 is pushed in the direction of arrow F to slide the engagement portions 232 and 218. According to the configuration of the present embodiment, unlike the configuration using the damper and the magnet catch, the user does not need to apply the force against the force of the damper and the magnet catch, so that the user does not need to apply the force with a small operating force. Can be closed. The engagement can be disengaged with a small operating force, but the disengagement requires operations in different directions in a plurality of operation units. Therefore, even if the user unintentionally touches one of the operating portions, it is possible to suppress the occurrence of unintended release of the holding state of the guide member.

〔実施形態３〕
実施形態３は、実施形態１と保持部材２１４とガイド機構２１３によるラッチ機構のみ異なり、その他の構成は実施形態１と同じである。したがって、ラッチ構成のみ説明を行い、実施形態１と同様の構成については説明を省略する。 [Embodiment 3]
The third embodiment differs from the first embodiment only in the latch mechanism by the holding member 214 and the guide mechanism 213, and other configurations are the same as those in the first embodiment. Therefore, only the latch configuration will be described, and the description of the same configuration as that of the first embodiment will be omitted.

図９、図１０は実施形態３に係るラッチ機構の構成を示した断面図であり、上搬送ガイド２１１が支軸２１０を支点として上方に回動した状態を示した図である。 9 and 10 are cross-sectional views showing the configuration of the latch mechanism according to the third embodiment, and is a view showing a state in which the upper transport guide 211 is rotated upward with the support shaft 210 as a fulcrum.

図９はガイド機構２１３を保持部材２１４により開いた位置で保持している状態の図である。 FIG. 9 is a diagram showing a state in which the guide mechanism 213 is held in an open position by the holding member 214.

図１０は、保持部材２１４とガイド機構２１３の保持が解除された状態を示している図である。
保持部材２１４は、シート処理装置２００の不図示のフレームに固定された保持部ステイ２２５（第一の部材）と、保持部ステイ２２５に対してスライド移動可能な操作ステイ４３０（第二の操作部材）を備える。保持部ステイ２２５から立ち上がった支持板４２８は支軸４２９を有しており、操作ステイ４３０のスライドスリット４３５に嵌合して操作ステイ４３０をスライド移動可能に支持している。操作ステイ４３０にはバネ掛け部４３３、保持部ステイ２２５にはバネ掛け部４２７があり、バネ掛け部４３３とバネ掛け部４２７とに引っ張りバネ４３４（付勢部）が掛けられている。そして、操作ステイ４３０は引っ張りバネ４３４の弾性力により図９中矢印Ｋ方向に付勢されている。操作ステイ４３０には操作部４３１（第二の操作部）と係合部４３２（第二の係合部）があり、操作部４３１を図１０の矢印Ｎ方向（第二の方向）に押すと、操作ステイ４３０は保持部ステイ２２５の切欠き穴４２６内を移動量Ｌ２だけ移動できる。 FIG. 10 is a diagram showing a state in which the holding member 214 and the guide mechanism 213 are released from being held.
The holding member 214 includes a holding portion stay 225 (first member) fixed to a frame (not shown) of the sheet processing device 200 and an operating stay 430 (second operating member) that can be slidably moved with respect to the holding portion stay 225. ) Is provided. The support plate 428 rising from the holding portion stay 225 has a support shaft 429, and is fitted in the slide slit 435 of the operation stay 430 to support the operation stay 430 so as to be slidable. The operation stay 430 has a spring hooking portion 433, the holding portion stay 225 has a spring hooking portion 427, and the spring hooking portion 433 and the spring hooking portion 427 are hung with a tension spring 434 (urging portion). The operation stay 430 is urged in the direction of arrow K in FIG. 9 by the elastic force of the tension spring 434. The operation stay 430 has an operation unit 431 (second operation unit) and an engagement unit 432 (second engagement unit), and when the operation unit 431 is pushed in the arrow N direction (second direction) in FIG. , The operation stay 430 can move in the notch hole 426 of the holding portion stay 225 by the movement amount L2.

ガイド機構２１３は、上搬送ガイド２１１と、上搬送ガイド２１１に対してスライド移動可能に支持されたガイド操作ステイ４１５（第一の操作部材）を備える。上搬送ガイド２１１から立ち上がった支持板４２２は支軸４２１を有しており、ガイド操作ステイ４１５のスライドスリット４１９に嵌合してガイド操作ステイ４１５をスライド移動可能に支持している。ガイド操作ステイ４１５にはバネ掛け部４１７、上搬送ガイド２１１にはバネ掛け部４２０があり、バネ掛け部４１７とバネ掛け部４２０とに引っ張りバネ４２３（付勢部）が掛けられている。そして、ガイド操作ステイ４１５は引っ張りバネ４２３の弾性力により図９中矢印Ｍ方向に付勢されている。ガイド操作ステイ４１５には操作部４１６（第一の操作部）と被係合部４２４（第一の被係合部）があり、操作部４１６を図１０の矢印Ｏ方向（第一の方向）に押すと、ガイド操作ステイ４１５は移動量Ｌ１だけスライド移動する。 The guide mechanism 213 includes an upper transport guide 211 and a guide operation stay 415 (first operating member) supported so as to be slidable with respect to the upper transport guide 211. The support plate 422 rising from the upper transport guide 211 has a support shaft 421 and is fitted into the slide slit 419 of the guide operation stay 415 to support the guide operation stay 415 so as to be slidable. The guide operation stay 415 has a spring hooking portion 417, and the upper transport guide 211 has a spring hooking portion 420, and a tension spring 423 (a urging portion) is hung on the spring hooking portion 417 and the spring hooking portion 420. The guide operation stay 415 is urged in the direction of arrow M in FIG. 9 by the elastic force of the tension spring 423. The guide operation stay 415 has an operation portion 416 (first operation portion) and an engaged portion 424 (first engaged portion), and the operation portion 416 is directed by the arrow O direction (first direction) in FIG. When pressed to, the guide operation stay 415 slides by the amount of movement L1.

上搬送ガイド２１１の開いた位置での保持状態では、引っ張りバネ４３４により操作ステイ４３０が付勢され、係合部４３２が上搬送ガイド２１１の固定係合部４１８（第二の被係合部）に係合する。ガイド操作ステイ４１５は引っ張りバネ４２３により付勢され、被係合部４２４が保持部ステイ２２５の固定係合部４３６（第一の係合部）に係合する。 In the holding state of the upper transport guide 211 in the open position, the operation stay 430 is urged by the tension spring 434, and the engaging portion 432 is the fixed engaging portion 418 (second engaged portion) of the upper transport guide 211. Engage in. The guide operation stay 415 is urged by the tension spring 423, and the engaged portion 424 engages with the fixed engaging portion 436 (first engaging portion) of the holding portion stay 225.

この係合関係の操作ステイ４３０とガイド操作ステイ４１５は操作ステイ４３０とガイド操作ステイ４１５のどちらかを操作しただけでは外れないようになっている。係合の解除に必要な操作ステイ４３０とガイド操作ステイ４１５の操作部４３１・４１６のスライド量Ｌは、次の３つの関係式を満たすように設定されている。
１）Ｌ＞Ｌ１
２）Ｌ＞Ｌ２
３）Ｌ＜Ｌ１＋Ｌ２
上搬送ガイド２１１を二か所の係合部で係合することで、操作ステイ４３０とガイド操作ステイ４１５のどちらかを操作しただけでは保持状態が解除されないようになっている。例えば、ユーザーがガイド操作ステイ４１５を触ってしまい、ガイド操作ステイ４１５の被係合部４２４が固定係合部４３６から外れたとしても、固定係合部４１８と係合部４３２は係合しているため保持状態は解除されない。複数の操作部を一緒に操作することにより係合が解除される構成であるため、ユーザーが誤って一つの操作部のみを操作したとしても搬送ガイドの係合状態が解除され、搬送ガイドが対向するガイドに急に落下して破損するということを抑制できる。 The engagement-related operation stay 430 and guide operation stay 415 cannot be disengaged only by operating either the operation stay 430 or the guide operation stay 415. The slide amounts L of the operation stays 430 and the operation units 431 and 416 of the guide operation stay 415 required for disengagement are set so as to satisfy the following three relational expressions.
1) L> L1
2) L> L2
3) L <L1 + L2
By engaging the upper transport guide 211 with the engaging portions at two places, the holding state is not released only by operating either the operation stay 430 or the guide operation stay 415. For example, even if the user touches the guide operation stay 415 and the engaged portion 424 of the guide operation stay 415 is disengaged from the fixed engaging portion 436, the fixed engaging portion 418 and the engaging portion 432 are engaged with each other. Therefore, the holding state is not released. Since the configuration is such that the engagement is released by operating a plurality of operation units together, even if the user accidentally operates only one operation unit, the engagement state of the transfer guide is released and the transfer guides face each other. It is possible to prevent the guide from suddenly falling and being damaged.

なお、引っ張りバネ４２３と４３４はガイド操作ステイ４１５、操作ステイ４３０の操作性を向上するために設置されている。ユーザーが操作部４１６を操作してガイド操作ステイ４１５を保持部ステイ２２５に係合させる際に、ガイド操作ステイ４１５の被係合部４２４の斜面部４２４ａと保持部ステイ２２５の固定係合部４３６とが接触し、操作ステイ４１５は引っ張りバネ４２３の張力に反して動く。また、操作ステイ４３０の係合部４３２の斜面部４３２ａと上搬送ガイド２１１の固定係合部４１８とが接触し、操作ステイ４３０は引っ張りバネ４３４の張力に反して動く。その後、ガイド操作ステイ４１５の被係合部４２４と保持部ステイ２２５の固定係合部４３６は引っ張りバネ４２３により係合状態が保持される。また、操作ステイ４３０の係合部４３２と上搬送ガイド２１１の固定係合部４１８は引っ張りバネ４３４により係合状態が保持される。そのためユーザーは、係合のための操作を別途する必要が無く操作負担が減る。なお、引っ張りバネを設けない場合は、ガイド操作ステイ４３０と操作ステイ４１５をユーザーが適宜動かして係合状態を作る必要がある。 The tension springs 423 and 434 are installed to improve the operability of the guide operation stay 415 and the operation stay 430. When the user operates the operation unit 416 to engage the guide operation stay 415 with the holding portion stay 225, the slope portion 424a of the engaged portion 424 of the guide operation stay 415 and the fixed engaging portion 436 of the holding portion stay 225. The operation stay 415 moves against the tension of the tension spring 423. Further, the slope portion 432a of the engaging portion 432 of the operating stay 430 and the fixed engaging portion 418 of the upper transport guide 211 come into contact with each other, and the operating stay 430 moves against the tension of the tension spring 434. After that, the engaged portion 424 of the guide operation stay 415 and the fixed engaging portion 436 of the holding portion stay 225 are held in an engaged state by the tension spring 423. Further, the engaging portion 432 of the operation stay 430 and the fixed engaging portion 418 of the upper transfer guide 211 are held in an engaged state by the tension spring 434. Therefore, the user does not need to separately perform the operation for engagement, and the operation load is reduced. When the tension spring is not provided, it is necessary for the user to appropriately move the guide operation stay 430 and the operation stay 415 to create an engaged state.

係合を解除する際は、操作ステイ４３０の操作部４３１を矢印Ｎ方向に押しながら、ガイド操作ステイ４１５の操作部４１６を矢印Ｏ方向に押して係合部４３２、４２４をスライドさせる。本実施形態の構成によれば、ダンパーやマグネットキャッチを使った構成のように、ダンパーやマグネットキャッチの力に反してユーザーが力を加える必要が無いため、ユーザーは小さな操作力で上搬送ガイド２１１を閉じることができる。 To disengage, while pushing the operation portion 431 of the operation stay 430 in the direction of the arrow N, the operation portion 416 of the guide operation stay 415 is pushed in the direction of the arrow O to slide the engagement portion 432 and 424. According to the configuration of the present embodiment, unlike the configuration using the damper and the magnet catch, the user does not need to apply the force against the force of the damper and the magnet catch, so that the user does not need to apply the force with a small operating force. Can be closed.

〔実施形態４〕
実施形態４は、実施形態２と、開く搬送ガイドが異なる。図１１は、画像形成装置側から見た（図２のαの方向から見た）シート処理装置２００の側面図である。実施形態４では、下搬送ガイド２１２（第二のガイド部材）はガイド操作ステイ５１５（第一の操作部材）を備える。図１１のように、下搬送ガイド２１２は支軸２４０で回動可能に支持されている。下搬送ガイド２１２は、対向する上搬送ガイド２１１（第一のガイド部材）に対して開閉可能に設けられている。下搬送ガイド２１２が、上搬送ガイド２１１に対して閉じた位置において、下搬送ガイド２１２のガイド機構２１３は、保持部２１４と係合するようになっている。保持部２１４は、上搬送ガイド２１１と下搬送ガイド２１２とにより搬送されるシートの搬送を邪魔しない位置に設けられている。保持部２１４と、ガイド機構２１３の構成は実施形態２と同様の構成である。 [Embodiment 4]
The fourth embodiment differs from the second embodiment in the transport guide that opens. FIG. 11 is a side view of the sheet processing device 200 viewed from the image forming apparatus side (viewed from the direction of α in FIG. 2). In the fourth embodiment, the lower transport guide 212 (second guide member) includes a guide operation stay 515 (first operation member). As shown in FIG. 11, the lower conveyance guide 21 2 is rotatably supported by a shaft 240. The lower transport guide 212 is provided so as to be openable and closable with respect to the facing upper transport guide 211 ( first guide member). At the position where the lower transport guide 212 is closed with respect to the upper transport guide 211, the guide mechanism 213 of the lower transport guide 212 is adapted to engage with the holding portion 214. The holding portion 214 is provided at a position that does not interfere with the transfer of the sheet conveyed by the upper transfer guide 211 and the lower transfer guide 212. The structure of the holding portion 214 and the guide mechanism 213 is the same as that of the second embodiment.

図１２、図１３はラッチ機構の構成を示した断面図である。 12 and 13 are cross-sectional views showing the configuration of the latch mechanism.

図１２は下搬送ガイド２１２が、保持部材２１４とガイド機構２１３により上搬送ガイド２１１に対して閉じた位置で保持されている状態の図である。 FIG. 12 is a diagram showing a state in which the lower transport guide 212 is held in a closed position with respect to the upper transport guide 211 by the holding member 214 and the guide mechanism 213.

図１３は、保持部材２１４とガイド機構２１３の保持が解除された状態を示している図である。
保持部材２１４は、シート処理装置２００の不図示のフレームに固定された保持部ステイ５２５(第一の)部材と、保持部ステイ５２５に対してスライド移動可能な操作ステイ５３０（第二の操作部材）を備える。保持部ステイ５２５から立ち上がった支持板５２８は支軸５２９を有しており、操作ステイ５３０のスライドスリット５３５に嵌合して操作ステイ５３０をスライド移動可能に支持している。操作ステイ５３０にはバネ掛け部５３３、保持部ステイ５２５にはバネ掛け部５２７があり、バネ掛け部５３３とバネ掛け部５２７とに引っ張りバネ５３４（付勢部）が掛けられている。そして、操作ステイ５３０は引っ張りバネ５３４の弾性力により図１２中矢印Ｃ方向に付勢されている。操作ステイ５３０には操作部５３１（第二の操作部）と係合部５３２（第一の係合部）があり、操作部５３１を図１３の矢印Ｅ方向（第二の方向）に押すと、操作ステイ５３０は保持部ステイ５２５の切欠き穴５２６内を移動量Ｌ２だけ移動できる。 FIG. 13 is a diagram showing a state in which the holding member 214 and the guide mechanism 213 are released from being held.
The holding member 214 includes a holding portion stay 525 (first) member fixed to a frame (not shown) of the sheet processing device 200 and an operating stay 530 (second operating member) that can be slidably moved with respect to the holding portion stay 525. ) Is provided. The support plate 528 rising from the holding portion stay 525 has a support shaft 259, and is fitted into the slide slit 535 of the operation stay 530 to support the operation stay 530 so as to be slidable. The operation stay 530 has a spring hooking portion 533, and the holding portion stay 525 has a spring hooking portion 527, and a tension spring 534 (a urging portion) is hung on the spring hooking portion 533 and the spring hooking portion 527. The operation stay 530 is urged in the direction of arrow C in FIG. 12 by the elastic force of the tension spring 534. The operation stay 530 has an operation unit 531 (second operation unit) and an engagement unit 532 (first engagement unit), and when the operation unit 531 is pushed in the arrow E direction (second direction) in FIG. , The operation stay 530 can move in the notch hole 526 of the holding portion stay 525 by the movement amount L2.

ガイド機構２１３は、下搬送ガイド２１２と、下搬送ガイド２１２に対してスライド移動可能に支持されたガイド操作ステイ５１５（第一の操作部材）とを備える。下搬送ガイド２１２から立ち上がった支持板５２２は支軸５２１を有しており、ガイド操作ステイ５１５のスライドスリット５１９に嵌合してガイド操作ステイ５１５をスライド移動可能に支持している。ガイド操作ステイ５１５にはバネ掛け部５１７、下搬送ガイド２１２にはバネ掛け部５２０があり、バネ掛け部５１７とバネ掛け部５２０とに引っ張りバネ５２３（付勢部）が掛けられている。そして、ガイド操作ステイ５１５は引っ張りバネ５２３の弾性力により図１２中矢印Ｄ方向に付勢されている。ガイド操作ステイ５１５には操作部５１６（第一の操作部）と被係合部５１８（第一の被係合部）があり、操作部５１６を図１３の矢印Ｆ方向（第一の方向）に押すと、ガイド操作ステイ５１５は移動量Ｌ１だけスライド移動できる。操作部５１６と操作部５３１は近接した位置に設けられている。例えば、操作部５１６と操作部５３１とが、１００ｍｍ以下の距離となるように設けられる。 The guide mechanism 213 includes a lower transport guide 212 and a guide operation stay 515 (first operating member) supported so as to be slidable with respect to the lower transport guide 212. The support plate 522 rising from the lower transport guide 212 has a support shaft 521, which is fitted in the slide slit 519 of the guide operation stay 515 to support the guide operation stay 515 so as to be slidable. The guide operation stay 515 has a spring hooking portion 517, and the lower transport guide 212 has a spring hooking portion 520, and a tension spring 523 (urging portion) is hung on the spring hooking portion 517 and the spring hooking portion 520. The guide operation stay 515 is urged in the direction of arrow D in FIG. 12 by the elastic force of the tension spring 523. The guide operation stay 515 has an operation portion 516 (first operation portion) and an engaged portion 518 (first engaged portion), and the operation portion 516 is directed in the arrow F direction (first direction) in FIG. When pressed to, the guide operation stay 515 can slide and move by the amount of movement L1. The operation unit 516 and the operation unit 531 are provided at close positions. For example, the operation unit 516 and the operation unit 531 are provided so as to have a distance of 100 mm or less.

図１２に示す、下搬送ガイド２１２の閉じた位置での保持状態では、引っ張りバネ５３４により操作ステイ５３０が付勢され、引っ張りバネ５２３によりガイド操作ステイ５１５が付勢されて、係合部５３２と５１８が係合することで下搬送ガイド２１２を保持している。この係合関係の操作ステイ５３０とガイド操作ステイ５１５は操作ステイ５３０とガイド操作ステイ５１５のどちらかを操作しただけでは外れないようになっている。係合の解除に必要な操作ステイ５３０とガイド操作ステイ５１５の操作部５３１、５１６のスライド量Ｌは、次の３つの関係式を満たすように設定されている。
１）Ｌ＞Ｌ１
２）Ｌ＞Ｌ２
３）Ｌ＜Ｌ１＋Ｌ２
このような関係となっているため、ユーザーがガイド操作ステイ５１５を触ってしまい、ガイド操作ステイ５１５を移動量Ｌ１だけ移動させてしまったとしても、該移動量Ｌ１は操作ステイ５３０とガイド操作ステイ５１５の係合が外れるスライド量Ｌよりも小さく、係合が解除されることはない。操作ステイ５３０のみをユーザーが触った場合でも同様に係合は解除されない。 In the state of holding the lower transport guide 212 in the closed position shown in FIG. 12, the tension spring 534 urges the operation stay 530, and the tension spring 523 urges the guide operation stay 515 to engage with the engaging portion 532. The lower transfer guide 212 is held by engaging with the 518. The engagement-related operation stay 530 and the guide operation stay 515 cannot be disengaged only by operating either the operation stay 530 or the guide operation stay 515. The slide amount L of the operation stays 530 and the operation units 531 and 516 of the guide operation stay 515 required for disengagement are set so as to satisfy the following three relational expressions.
1) L> L1
2) L> L2
3) L <L1 + L2
Because of this relationship, even if the user touches the guide operation stay 515 and moves the guide operation stay 515 by the movement amount L1, the movement amount L1 is the operation stay 530 and the guide operation stay. It is smaller than the slide amount L at which the 515 is disengaged, and the engagement is not disengaged. Even if the user touches only the operation stay 530, the engagement is not released in the same manner.

複数の操作部を一緒に操作することにより係合が解除される構成であるため、ユーザーが誤って操作部の一つを操作したとしても下搬送ガイド２１２の係合状態が解除され、下搬送ガイド２１２が急に落下して破損するということを抑制できる。このような、搬送ガイドの破損は、ガイドを金属で形成した場合に顕著な問題となる。なぜならば、金属で形成されたガイドは樹脂で形成されたガイドよりも重くなるため、落下による衝撃が大きくなるためである。なお、引っ張りバネ５２３と５３４はガイド操作ステイ５１５、操作ステイ５３０の係合状態を保持するために設置されている。ユーザーが操作部５１６を操作してガイド操作ステイ５１５を操作ステイ５３０に係合させる際に、ガイド操作ステイ５１５の被係合部５１８は、引っ張りバネ５２３と５３４の張力に反してガイド操作ステイ５３０の係合部５３２の斜面部５３２ａに沿って動く。そして操作ステイ５１５の被係合部５１８が斜面部５３２ａを乗り越えると、ガイド操作ステイ５１５の被係合部５１８と操作ステイ５３０の係合部５３２は引っ張りバネ５２３と５３４により係合状態が保持される。そのためユーザーは、係合のための操作を別途する必要が無く操作負担が減る。引張りバネがない場合は、操作ステイ２３０とガイド操作ステイ５１５とをユーザーが適宜動かして、係合状態を作る必要がある。 Since the configuration is such that the engagement is released by operating a plurality of operation units together, even if the user mistakenly operates one of the operation units, the engagement state of the lower transfer guide 212 is released and the lower transfer guide 212 is released. It is possible to prevent the guide 212 from suddenly falling and being damaged. Such breakage of the transport guide becomes a remarkable problem when the guide is made of metal. This is because the guide made of metal is heavier than the guide made of resin, so that the impact due to dropping is large. The tension springs 523 and 534 are installed to hold the engaged state of the guide operation stay 515 and the operation stay 530. When the user operates the operation unit 516 to engage the guide operation stay 515 with the operation stay 530, the engaged portion 518 of the guide operation stay 515 is subjected to the guide operation stay 530 against the tension of the tension springs 523 and 534. It moves along the slope portion 532a of the engaging portion 532 of the above. When the engaged portion 518 of the operation stay 515 gets over the slope portion 532a, the engaged portion 518 of the guide operation stay 515 and the engaging portion 532 of the operation stay 530 are held in an engaged state by the tension springs 523 and 534. To. Therefore, the user does not need to separately perform the operation for engagement, and the operation load is reduced. When there is no tension spring, it is necessary for the user to appropriately move the operation stay 230 and the guide operation stay 515 to create an engaged state.

係合を解除する際は、操作ステイ５３０の操作部５３１を矢印Ｅ方向に押しながら、ガイド操作ステイ５１５の操作部５１６を矢印Ｆ方向に押して係合部５３２、５１８をスライドさせる。本実施形態の構成によれば、ダンパーやマグネットキャッチを使った構成のように、ダンパーやマグネットキャッチの力に反してユーザーが力を加える必要が無いため、ユーザーは小さな操作力で下搬送ガイド２１２を開くことができる。 To disengage, while pushing the operation portion 531 of the operation stay 530 in the direction of arrow E, the operation portion 516 of the guide operation stay 515 is pushed in the direction of arrow F to slide the engagement portion 532 and 518. According to the configuration of the present embodiment, unlike the configuration using the damper and the magnet catch, the user does not need to apply a force against the force of the damper and the magnet catch, so that the user can use a small operating force to lower the transport guide 212. Can be opened.

なお、実施形態４では、実施形態２のラッチ機構の構成を下搬送ガイド２１２の保持の構成として適用したがこれに限られるものではない。実施形態１、実施形態３のようなラッチ機構を下搬送ガイド２１２の保持機構に適用してもよい。 In the fourth embodiment, the configuration of the latch mechanism of the second embodiment is applied as the holding configuration of the lower transfer guide 212, but the present invention is not limited to this. The latch mechanism as in the first and third embodiments may be applied to the holding mechanism of the lower transfer guide 212.

（その他）
実施形態１〜３では上搬送ガイド２１１の保持構成について、実施形態４では下搬送ガイド２１２の保持構成について説明を行った。それ以外にも、入口可動搬送ガイド２４１、出口可動搬送ガイド２７１のように、垂直方向にシートが搬送されるガイド部においても、各実施例で説明したようなラッチ機構を適用することが可能である。 (Other)
In the first to third embodiments, the holding configuration of the upper transport guide 211 has been described, and in the fourth embodiment, the holding configuration of the lower transport guide 212 has been described. In addition to that, it is possible to apply the latch mechanism as described in each embodiment to the guide portion in which the sheet is conveyed in the vertical direction, such as the inlet movable transfer guide 241 and the outlet movable transfer guide 271. is there.

また、実施形態１〜４では、電子写真方式の画像形成装置で説明をしたがこれに限定されるものではない。シートに対しインクを吐出して画像形成を行うインクジェット方式の画像形成装置に用いられるシート搬送装置であってもよい。 Further, in the first to fourth embodiments, the electrophotographic image forming apparatus has been described, but the present invention is not limited to this. It may be a sheet transfer device used in an inkjet type image forming apparatus that ejects ink onto a sheet to form an image.

１００フィニッシャ
２００シート処理装置
２０１フラッパ
２１１上搬送ガイド
２１２下搬送ガイド
２１３被保持部
２１４保持部
２１５ガイド操作ステイ
２１６操作部
２１８係合部
２２３引っ張りバネ
２３０操作ステイ
２３１操作部
２３２係合部
２３４引っ張りバネ
２６０処理部
３０３固定係合部
３０４ガイド操作ステイ
３０５操作部
３０６係合部
３１３固定係合部
３１７引っ張りバネ
３２０操作ステイ
３２１操作部
３２２係合部
４１５操作ガイドステイ
４１６操作部
４１８固定係合部
４２３引っ張りバネ
４２４係合部
４３０操作ステイ
４３１操作部
４３２係合部
４３４引っ張りバネ
４３６固定係合部 100 Finisher 200 Sheet processing device 201 Flapper 211 Upper transfer guide 212 Lower transfer guide 213 Held part 214 Holding part 215 Guide operation stay 216 Operation part 218 Engagement part 223 Tension spring 230 Operation stay 231 Operation part 232 Engagement part 234 Tension spring 260 Processing part 303 Fixed engagement part 304 Guide operation stay 305 Operation part 306 Engagement part 313 Fixed engagement part 317 Pull spring 320 Operation stay 321 Operation part 322 Engagement part 415 Operation guide stay 416 Operation part 418 Fixed engagement part 423 Tension spring 424 Engagement part 430 Operation stay 431 Operation part 432 Engagement part 434 Tension spring 436 Fixed engagement part

Claims

A first guide member that guides the sheet to be conveyed and a second guide member that faces the first guide member and guides the sheet to be conveyed, and the first guide for jamming. a second guide member from the closed position relative to the member provided movably in the open position with respect to said first guide member, movable with said second and to said second guide member A guide unit having a first operating member provided on the guide member, and
A first member that engages with the first operating member, and a second operating member that is movable with respect to the first member and is provided on the first member and is the second guide member. a holding member and the second operating member comprises, for holding said second guide member prior KiHiraki Itakurai location to be engaged with,
Have,
It said holding member by said first member and said first operating member with engagement with and the second operating member and the second guide member engages the holding said second guide member And
Wherein the first operating member engaging with said first operating member and the first member is released by Rukoto move in a first direction,
Wherein the second operating member in the first direction is disengaged from the said different by Rukoto to move in a second direction the the second operating member second guide member,
When both the engagement between the first operating member and the first member and the engagement between the second operating member and the second guide member are disengaged, the holding member causes the first. second guide members holding is released sheet conveying apparatus according to claim Rukoto.

A first guide member that guides the sheet to be conveyed and a second guide member that faces the first guide member and guides the sheet to be conveyed, and the first guide for jamming. a second guide member from the closed position relative to the member provided movably in the open position with respect to said first guide member, movable with said second and to said second guide member A guide unit having a first operating member provided on the guide member, and
A first member, a second operating member movably engaging the first operating member a second operating member provided on said first member relative to said first member , and a holding member for holding the second guide member prior KiHiraki Itakurai location,
Have,
The holding member holds the second guide member by said first operating member and the second operating member engages,
The Rukoto move in a second direction different from said the first operating member from the first move in the direction and the the second operating member in the first direction, the second guide by the holding member A sheet transfer device characterized in that the holding of a member is released.

A the least pressing portion with which is also provided hand and the the first operating member second operating member, least hand also between the second operating member and the first operating member and it has a biasing portion one of said second operating member and the first operating member for urging to engage the other of said second operating member and the first operating member 2. The sheet transport device according to claim 2 .

The sheet transport device according to any one of claims 1 to 3 , wherein the second guide member moves upward from the closed position to the open position .

The first operating member is rotatably provided with respect to the second guide member.
The second operating member is pivotally provided et been to said first member,
Any one of claims 1 to 4 wherein the first operating member and the second operating member, characterized in Rukoto holding of the second guide member by said holding member by Rukoto be rotated is released 1 The sheet transport device according to the item.

The first operating member is slidably provided with respect to the second guide member.
The second operating member is slidably disposed, et al is to the first member,
Any one of claims 1 to 4 wherein the first operating member and the second operating member is held by the second guide member by said holding member by Rukoto to slide is released, characterized in Rukoto The sheet transfer device according to.

The slidable amount of the first operating member is L1, the slidable amount of the second operating member is L2, and the first operation required for releasing the holding of the second guide member by the holding member. and part material the sliding amount of the second operating member as L,
L> L1
L> L2
L <L1 + L2
The sheet transport device according to claim 6 , wherein the sheet transport device according to claim 6 .

The sheet transport device according to any one of claims 1 to 7 , wherein the second guide member is a metallic guide member.

First operation portion corresponding to the portion for operating the user in said first operating member is provided at a position close to the second operating part corresponding to the portion where the user operates in the second operating member The sheet transport device according to any one of claims 1 to 8 , wherein the sheet transport device is characterized by

Said first operation unit, the sheet conveying device according to claim 9 in which the distance between said first operating portion and the second operating portion and which are located so as to be less than 100mm.

An image forming unit for forming an image on a sheet, the image forming apparatus characterized by comprising: a sheet conveying device according to any one of claims 1 to 1 0.