JP2016155685A

JP2016155685A - Sheet conveyance device and image formation apparatus

Info

Publication number: JP2016155685A
Application number: JP2015255878A
Authority: JP
Inventors: 渡邊　潔; Kiyoshi Watanabe; 潔渡邊
Original assignee: Canon Inc
Current assignee: Canon Inc
Priority date: 2015-02-24
Filing date: 2015-12-28
Publication date: 2016-09-01
Anticipated expiration: 2035-12-28
Also published as: JP6815727B2

Abstract

PROBLEM TO BE SOLVED: To solve such problems that, if a damper or a magnetic catch is used to make a guide member self-holdable in an opened state, a force is required for holding the weight of the guide member in the opened state, and this increases an operation force for closing the guide member and degrades the operability, in contrast, if a mechanical holding mechanism without using the damper is employed, the hold may be disengaged without intention of a user.SOLUTION: A sheet conveyance device includes a guide mechanism 213 having an upper conveyance guide 211 for guiding a conveyed sheet and a holding member 214 for holding the upper conveyance guide 211 in an opened position with respect to a lower conveyance guide 212 opposed thereto, wherein the guide mechanism 213 includes an operation member 304 for disengaging engagement between the guide mechanism and the holding member 214, and the holding member 214 includes an operation member 320 for disengaging engagement between the guide mechanism 213 and the holding member. The Hold of the guide mechanism 213 by the holding member 214 is disengaged by moving the operation member 304 and the operation member 320 in the mutually-different directions.SELECTED DRAWING: Figure 5

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 conveying apparatus including a guide member that opens and closes, and an image forming apparatus including the sheet conveying apparatus.

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）。 2. Description of the Related Art Conventionally, a sheet conveying apparatus has a configuration in which a guide member constituting a conveyance guide is opened for jam processing by the conveyance guide. Some guide members employ a structure that can be held independently with the guide member open so that it can be jammed with one hand. The self-supporting method includes a configuration in which a damper is used for holding (Patent Document 1) and a configuration in which an open guide member is held by a magnet catch. Further, the disclosure of a configuration in which a cover member provided with a guide is provided so that the guide can be opened and closed by engaging a fixed member provided on the cover member with a fixing member provided on the main body and releasing the engagement. (Patent Document 2).

特開２００８−８７８７５号公報JP 2008-87875 A 特開２０１２−１６８５７０号公報JP 2012-168570 A

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, the configuration using the damper has the following problems. The damper is 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 user's operating force 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。 Similarly to the configuration using the damper, the configuration using the magnet catch has a problem that the user needs to close the guide member against the force of the magnet catch and the user's operating force 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。 In addition, there is the following problem in the configuration in which the guide is opened and closed by engaging the fixed member with the fixing member and releasing the engagement. Since the release operation is performed by operating only one member, the user may accidentally touch the member to be released, and the guide member may not be opened or closed unintentionally by the user.

本発明は、この様な課題を解決するためになされたものである。 The present invention has been made to solve such problems.

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ガイド部材と、前記ガイド部材に対し移動可能に設けられた第一の操作部材と、を有する第一のガイド部材であって、前記ガイド部材は、前記ガイド部材に対向する第二のガイド部材に対して開閉可能に設けられた第一のガイド部材と、前記ガイド部材と係合し、前記第一のガイド部材を前記第二のガイド部材に対して開いた位置又は閉じた位置に保持する保持部材と、を有し、前記保持部材は、第一の部材と、前記第一の部材に対し移動可能に設けられた第二の操作部材とを有し、前記保持部材による前記第一のガイド部材の保持を解除する際に、前記第一の操作部材を動かす方向と、前記第二の操作部材を動かす方向は、それぞれ異なる方向であり、前記第一の操作部材と第二の操作部材の一方の操作のみでは前記保持部材による前記第一のガイド部材の保持は解除されないことを特徴とする。 In order to achieve the above object, a sheet conveying apparatus according to the present invention includes a guide member that guides a sheet to be conveyed, and a first operation member that is movably provided with respect to the guide member. A first guide member that is openable and closable with respect to a second guide member facing the guide member; and engages with the guide member; A holding member that holds the guide member in an open position or a closed position with respect to the second guide member, and the holding member is movable with respect to the first member and the first member A second operation member provided on the first operation member when releasing the holding of the first guide member by the holding member, and the second operation member The direction of movement is different. The a first operating member is only one operation of the second operating member holding the first guide member by the holding member is characterized by not released.

本発明によれば、ユーザーにとって操作性のよいガイド部材を備えたシート搬送装置を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the sheet conveying apparatus provided with the guide member with sufficient operativity for a user can be provided.

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 an image forming apparatus provided with 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The side view which looked at the sheet processing apparatus concerning Embodiment 1 of the present invention from the image forming device side 本発明の実施形態１に係るラッチ機構を示す斜視図The perspective view 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A side view of a sheet processing apparatus according to a 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 apparatus>
FIG. 1 is a configuration diagram of an image forming apparatus and a sheet processing apparatus. In this embodiment, an electrophotographic image forming apparatus is used. As shown in FIG. 1, the image forming apparatus includes an image forming apparatus main body 600 that performs monochrome / color image formation 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 be integrated with the sheet processing apparatus 200 as a sheet discharge apparatus. Here, the position where the user faces the operation unit 601 for performing various inputs / settings on the image forming apparatus main body 600 is referred to as the front 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 viewed from the front side of the apparatus. The sheet processing apparatus 200 is connected to a side portion of the image forming apparatus 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 sheet S supplied from the cassettes 909a and 909b in the image forming apparatus main body 600 is transferred with toner images of four colors by yellow, magenta, cyan, and black photosensitive drums 914a to 914d, respectively, constituting the image forming unit. The Then, the toner image is fixed by being conveyed to the fixing device 904, and if it is a single-sided image forming mode, it is sent to the sheet processing apparatus 200 as it is by the discharge roller pair 907. In the double-sided image forming mode, the sheet S is transferred from the fixing device 904 to the reverse roller 905, and when the rear end of the sheet conveyance direction exceeds the reverse flapper part P, the reverse roller 905 is rotated in the reverse direction. It conveys in the direction of reverse double-sided conveyance rollers 906a-906f. Then, the four color toner images are transferred again to the back surface by the yellow, magenta, cyan, black photosensitive drums 914a to 914d. The sheet S transferred on both sides is conveyed again to the fixing device 904 to fix the toner image, and is sent to the sheet processing apparatus 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 apparatus 200 sequentially takes in the sheets discharged from the image forming apparatus main body 600 and discharges them to the tray 290 downstream in the transport direction without processing and the processing path B in which the processing unit 260 processes the captured sheets. A bypass A is provided. These paths are switched by the flapper 201. The sheet processing includes a punching process for making holes in the sheet and a creasing process for making a pushing 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。 Sheet processing in the sheet processing apparatus 200 operates in accordance with a user 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 sheet discharged from the image forming apparatus main body 600 is delivered to the inlet roller pair 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, conveyed by the conveyance roller pair 203a, 203b, 204a, 204b, and discharged to the tray 290 downstream in the conveyance 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 processing a sheet, the processing path B is switched by the flapper 201, and the sheet is transported to the processing unit 260 by the transport roller pairs 205a, 205b, 206a, and 206b and processed. The processed sheet is conveyed again, conveyed by the conveyance roller pairs 207a, 207b, 208a, 208b, 204a, 204b, and discharged to the tray 290 downstream in the conveyance direction.

バイパスＡは上搬送ガイド２１１（ガイド部材）を備えるガイド機構２１３（第１のガイド部材）と上搬送ガイドに搭載された従動コロ２０２ａ、２０３ａ、２０４ａ、そして、下搬送ガイド２１２（第二のガイド部材）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。 The bypass A includes a guide mechanism 213 (first guide member) including an upper conveyance guide 211 (guide member), driven rollers 202a, 203a, and 204a mounted on the upper conveyance guide, and a lower conveyance guide 212 (second guide). Member) and driving rollers 202b, 203b, and 204b. 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 α in FIG. 2), and FIG. 4 is a perspective view of the upper transport guide 211 and the lower transport guide 212. It is. As shown in FIGS. 3 and 4, the upper conveyance guide 211 is rotatably supported by the support shaft 210. The upper conveyance guide 211 is provided so as to be openable and closable with respect to the opposed lower conveyance guide 212, and the upper conveyance guide 211 opens upward with respect to the lower conveyance guide 212. At a position where the upper conveyance guide 211 is closed with respect to the lower conveyance guide 212, the upper conveyance guide 211 and the lower conveyance guide 212 are held in a state where the mutual guides are closed by the magnetic force of a magnet (not shown). A holding member 214 is installed at a position where the upper conveyance guide 211 is opened, and a guide mechanism 213 of the upper conveyance guide 211 is engaged. For this reason, the upper conveyance guide 211 is held open to improve the operability during the jam processing. The upper conveyance 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。 For the processing path B, the path on the inlet side of the processing unit 260 includes an inlet fixed transport guide 242 and an inlet movable transport guide 241. The inlet movable conveyance guide 241 can be rotated in the same manner as the upper conveyance guide 211, and when opened, the holding portion 244 and the held portion 243 of the inlet movable conveyance guide 241 can be engaged and held open. Yes. The exit-side path of the processing unit 260 includes an exit fixed transport guide 272 and an exit movable transport guide 271. The outlet movable conveyance guide 271 can be rotated in the same manner as the upper conveyance guide 211, and when opened, the holding portion 274 and the held portion 273 of the movable outlet conveyance guide 271 are engaged and can be held open. .

＜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。 <Description of latch mechanism>
5 and 6 are cross-sectional views illustrating the configuration of the latch mechanism according to the first embodiment, and are diagrams illustrating a state in which the upper transport guide 211 is rotated upward with the support shaft 210 as a fulcrum. 5 and 6 are AA cross sections 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 view showing a state in which the upper conveyance guide 211 is held at the opened 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 illustrating a state in which the holding of the holding member 214 and the guide mechanism 213 is released.
The holding member 214 includes a holding unit stay 225 (first member) fixed to a frame (not shown) of the sheet processing apparatus 200, and an operation stay 320 (second operating member) that can rotate with respect to the holding unit stay 225. ). The support plate 311 rising from the holding portion stay 225 has a support shaft 312 and is fitted in the rotation hole 323 of the operation stay 320 so as to rotatably support the operation stay 320. The operation stay 320 has a spring hook portion 324, and the holding portion stay 225 has a spring hook portion 316, and a tension spring 317 (biasing portion) is hung on the spring hook portion 324 and the spring hook 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 includes an operation unit 321 (second operation unit) and an engagement unit 322 (second engagement unit) which are parts operated by the user. The operation unit 321 is moved in the direction indicated by the arrow H in FIG. When pressed 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 conveyance guide 211 and a guide operation stay 304 (first operation member) supported to be rotatable with respect to the upper conveyance guide 211. The support plate 301 rising from the upper conveyance guide 211 has a support shaft 302 and is fitted in a rotation hole 307 of the guide operation stay 304 to support the guide operation stay 304 in a rotatable manner. The guide operation stay 304 includes an operation section 305 (first operation section) and an engaged section 306 (first engaged section). The operation section 305 is moved in the direction of arrow I (first direction) in FIG. When pressed, 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 mentioned here indicates that the user has a positional relationship that allows the user to touch the operation unit 305 and the operation unit 321 simultaneously 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。 When the upper conveyance guide 211 is held at the open position, the operation stay 320 is urged by the tension spring 317, and the engaging portion 322 is fixedly engaged with the upper conveyance guide 211 (second engaged portion). Engage with. The guide operation stay 304 is heavier on the operation portion 305 side than the engaged portion 306 side. In FIG. 6, the guide operation stay 304 is constantly given a moment of rotation about the support shaft 302 in the arrow J direction. It is like that. As a result, the engaged portion 306 engages with the fixed engagement portion 313 (first engagement portion) of the holding portion stay 225. By engaging the upper conveyance guide 211 with the two engaging portions, the holding state is not released only by operating one of the operation stay 320 and 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 engagement portion 313, the fixed engagement portion 303 and the engagement 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 engagement is released by operating a plurality of operation units together, even if the user mistakenly operates only one operation unit, the engagement state of the conveyance guide is released and the conveyance guides face each other. It is possible to suppress a sudden drop and damage to the guide. Further, since the operation directions of the respective operation units are different, even if the user touches the operation unit by mistake, the engagement state of the transport guide is not released.

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。 Note that 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 unit stay 225, the engaging unit 303 of the upper conveyance guide 211 is engaged with the holding unit 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 conveyance guide 211 gets over the inclined surface portion 322 a, the engaging portion 303 of the operation stay 304 and the engaging portion 322 of the holding portion stay 225 are held in the engaged state by the tension spring 317. Therefore, the user does not need to separately perform an operation for engagement, and the operation burden is reduced. In the configuration in which the tension spring is not provided, the engagement portion 322 and the fixed engagement portion 303 are engaged with each other when engaged (the relationship in FIG. 5), and 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 releasing the engagement, while pushing the operation portion 321 of the operation stay 320 in the direction of arrow H, 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 a damper or a magnet catch, the user does not need to apply a force against the force of the damper or the magnet catch. Can be closed. Moreover, since the operation | movement which cancels | releases engagement can be performed by the operation | movement which grasps the operation part 321 of the operation stay 320, and the operation part 305 of the guide operation stay 304, operation of cancellation | release is easy for a 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 is different from the first embodiment only in the latch mechanism by the holding member 214 and the guide mechanism 213, and the other configuration is the same as 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 a configuration of a latch mechanism including a holding member 214 and a guide mechanism 213 which will be described later. 7 and 8 show a state in which the upper conveyance 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 view showing a state where the upper conveyance guide 211 is held by the holding member 214 at an open position.

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 illustrating a state in which the holding of the holding member 214 and the guide mechanism 213 is released.
The holding member 214 includes a holding unit stay 225 fixed to a frame (not shown) of the sheet processing apparatus 200, and an operation stay 230 (second operating member) that is slidable relative to the holding unit stay 225. The support plate 228 rising from the holding section stay 225 has two support shafts 229, and the support shaft 229 is fitted in the slide slit 235 of the operation stay 230 to support the operation stay 230 so as to be slidable. . The operation stay 230 is provided with a spring hook portion 233, and the holding portion stay 225 is provided with a spring hook portion 227, and a tension spring 234 (biasing portion) is hung on the spring hook portion 233 and the spring hook 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 portion 231 (second operation portion) and an engagement portion 232 (first engagement portion). When the operation portion 231 is pushed in the direction of arrow E (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 upper conveyance guide 211 and an end portion of the upper conveyance guide 211 opposite to the support shaft 210, and is supported by the upper conveyance guide 211 so as to be slidable. One operation member). The support plate 222 rising from the upper conveyance guide 211 has a support shaft 221, and is fitted to 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 hook portion 217, and the upper conveyance guide 211 has a spring hook portion 220. A tension spring 223 (biasing portion) is hung on the spring hook portion 217 and the spring hook 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 includes an operation portion 216 (first operation portion) and an engagement portion 218 (first engaged portion). The operation portion 216 is moved in the direction of arrow F (first direction) in FIG. When pressed, the guide operation stay 215 slides by the movement amount L1. The operation unit 216 and the operation unit 231 are provided at close positions. For example, for example, the operation unit 216 and the operation unit 231 are provided at 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 conveyance guide 211 shown in FIG. 7, the operation stay 230 is urged by the tension spring 234, and the guide operation stay 215 is urged by the tension spring 223. The upper conveyance guide 211 is held by the engagement of 218. The operation stay 230 and the guide operation stay 215 that are in this engagement relationship cannot be removed simply by operating either the operation stay 230 or the guide operation stay 215. The slide amounts of the operation portions 231 and 216 of the operation stay 230 and the guide operation stay 215 necessary for releasing the engagement 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 engaged. It is smaller than the slide amount L to be disengaged, and the engagement is not released. Similarly, even when the user touches only the operation stay 230, the engagement 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 engagement is released by operating a plurality of operation units together, even if the user accidentally 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 suppress a sudden drop and damage to the guide. Such breakage of the conveyance guide becomes a significant problem when the guide is made of metal. This is because the guide made of metal is heavier than the guide made of resin, and the impact due to dropping is increased.

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 maintain the engagement 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 moves against the tension of the tension springs 223 and 234. It moves along the slope 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 engagement portion 232 of the operation stay 230 are held in engagement by the tension springs 223 and 234. Is done. Therefore, the user does not need to separately perform an operation for engagement, and the operation burden 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 releasing the engagement, the operation portion 231 of the operation stay 230 is pushed in the direction of arrow E, the operation portion 216 of the guide operation stay 215 is pushed in the direction of arrow F, and the engagement portions 232 and 218 are slid. According to the configuration of the present embodiment, unlike the configuration using a damper or a magnet catch, the user does not need to apply a force against the force of the damper or the magnet catch. Can be closed. Although the engagement can be released with a small operating force, the operation in different directions is required by a plurality of operation units to release the engagement. Therefore, even if the user unintentionally touches one of the operation units, the unintended release of the holding state of the guide member can be suppressed.

〔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 is different from the first embodiment only in the latch mechanism by the holding member 214 and the guide mechanism 213, and the other configuration is the same as 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 illustrating the configuration of the latch mechanism according to the third embodiment, and are diagrams illustrating a state in which the upper conveyance 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 view showing a state in which the guide mechanism 213 is held by the holding member 214 at an open position.

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 illustrating a state where the holding of the holding member 214 and the guide mechanism 213 is released.
The holding member 214 includes a holding unit stay 225 (first member) fixed to a frame (not shown) of the sheet processing apparatus 200, and an operation stay 430 (second operating member) that is slidable with respect to the holding unit stay 225. ). The support plate 428 rising from the holding section stay 225 has a support shaft 429 and is fitted to 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 hook portion 433, and the holding portion stay 225 has a spring hook portion 427. A tension spring 434 (biasing portion) is hung on the spring hook portion 433 and the spring hook portion 427. 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 includes an operation unit 431 (second operation unit) and an engagement unit 432 (second engagement unit). When the operation unit 431 is pushed in the direction of arrow N (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 conveyance guide 211 and a guide operation stay 415 (first operation member) supported so as to be slidable with respect to the upper conveyance guide 211. The support plate 422 rising from the upper conveyance guide 211 has a support shaft 421 and is fitted to 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 hook portion 417, and the upper conveyance guide 211 has a spring hook portion 420. A tension spring 423 (biasing portion) is hung on the spring hook portion 417 and the spring hook 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 includes an operation portion 416 (first operation portion) and an engaged portion 424 (first engaged portion). The operation portion 416 is moved in the direction of arrow O (first direction) in FIG. When the button is pressed, the guide operation stay 415 slides by the movement amount 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。 When the upper conveyance guide 211 is held at the open position, the operation stay 430 is urged by the tension spring 434, and the engagement portion 432 is fixedly engaged with the fixed conveyance portion 418 (second engaged portion) of the upper conveyance guide 211. Engage with. The guide operation stay 415 is biased by the tension spring 423, and the engaged portion 424 engages with the fixed engagement portion 436 (first engagement 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 operation stay 430 and the guide operation stay 415 in the engagement relation cannot be detached only by operating one of the operation stay 430 and the guide operation stay 415. The slide amount L of the operation portions 431 and 416 of the operation stay 430 and the guide operation stay 415 necessary for releasing the engagement is set so as to satisfy the following three relational expressions.
1) L> L1
2) L> L2
3) L <L1 + L2
By engaging the upper conveyance guide 211 with two engaging portions, the holding state is not released only by operating one of the operation stay 430 and 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 engagement portion 436, the fixed engagement portion 418 and the engagement portion 432 are engaged. Therefore, the holding state is not released. Since the engagement is released by operating a plurality of operation units together, even if the user mistakenly operates only one operation unit, the engagement state of the conveyance guide is released and the conveyance guides face each other. It is possible to suppress a sudden drop and damage to the guide.

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 portion 416 to engage the guide operation stay 415 with the holding portion stay 225, the inclined portion 424 a of the engaged portion 424 of the guide operation stay 415 and the fixed engagement portion 436 of the holding portion stay 225. And the operation stay 415 moves against the tension of the tension spring 423. Further, the slope 432 a of the engaging portion 432 of the operation stay 430 and the fixed engaging portion 418 of the upper transport guide 211 come into contact with each other, and the operation stay 430 moves against the tension of the tension spring 434. Thereafter, the engaged portion 424 of the guide operation stay 415 and the fixed engagement portion 436 of the holding portion stay 225 are held in an engaged state by the tension spring 423. Further, the engagement state of the engagement portion 432 of the operation stay 430 and the fixed engagement portion 418 of the upper conveyance guide 211 is maintained by the tension spring 434. Therefore, the user does not need to separately perform an operation for engagement, and the operation burden 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。 When releasing the engagement, the operation portion 431 of the operation stay 430 is pushed in the direction of arrow N, the operation portion 416 of the guide operation stay 415 is pushed in the direction of arrow O, and the engagement portions 432 and 424 are slid. According to the configuration of the present embodiment, unlike the configuration using a damper or a magnet catch, the user does not need to apply a force against the force of the damper or the magnet catch. 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、ガイド機構２１３（第一のガイド部材）は、下搬送ガイド２１２と、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（第一のガイド部材）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（第二のガイド部材）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、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 is different from the second embodiment in the conveyance guide to be opened. FIG. 11 is a side view of the sheet processing apparatus 200 viewed from the image forming apparatus side (viewed from the direction α in FIG. 2). In the fourth embodiment, the guide mechanism 213 (first guide member) includes a lower conveyance guide 212 and a guide operation stay 515 (first operation member). As shown in FIG. 11, the lower conveyance guide 212 (first guide member) is rotatably supported by the support shaft 240. The lower conveyance guide 212 is provided so as to be openable and closable with respect to the opposed upper conveyance guide 211 (second guide member). The guide mechanism 213 is engaged with the holding unit 214 at a position where the lower conveyance guide 212 is closed with respect to the upper conveyance guide 211. The holding unit 214 is provided at a position that does not interfere with the conveyance of the sheet conveyed by the upper conveyance guide 211 and the lower conveyance guide 212. The structure of the holding | maintenance part 214 and the guide mechanism 213 is the same structure as Embodiment 2. FIG.

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 illustrating a state in which the lower conveyance guide 212 is held at a closed position with respect to the upper conveyance 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 illustrating a state in which the holding of the holding member 214 and the guide mechanism 213 is released.
The holding member 214 includes a holding unit stay 525 (first) member fixed to a frame (not shown) of the sheet processing apparatus 200, and an operation stay 530 (second operation member) slidable with respect to the holding unit stay 525. ). The support plate 528 rising from the holding section stay 525 has a support shaft 529 and is fitted to 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 hook portion 533, and the holding portion stay 525 has a spring hook portion 527, and a tension spring 534 (biasing portion) is hung on the spring hook portion 533 and the spring hook portion 527. The operation stay 530 is biased 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 portion 531 (second operation portion) and an engagement portion 532 (first engagement portion). When the operation portion 531 is pushed in the direction of arrow E (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 conveyance guide 212 and a guide operation stay 515 (first operation member) supported so as to be slidable with respect to the lower conveyance guide 212. The support plate 522 rising from the lower conveyance guide 212 has a support shaft 521 and is fitted to 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 hook portion 517, and the lower conveyance guide 212 has a spring hook portion 520. A tension spring 523 (biasing portion) is hung on the spring hook portion 517 and the spring hook 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 includes an operation portion 516 (first operation portion) and an engaged portion 518 (first engaged portion). The operation portion 516 is moved in the direction of arrow F (first direction) in FIG. Is pushed, the guide operation stay 515 can be slid by the movement amount 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 at 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 where the lower conveyance guide 212 is held at the closed position shown in FIG. 12, the operation stay 530 is urged by the tension spring 534, and the guide operation stay 515 is urged by the tension spring 523. The lower conveyance guide 212 is held by the engagement of 518. The operation stay 530 and the guide operation stay 515 in the engagement relation cannot be detached only by operating one of the operation stay 530 and the guide operation stay 515. The slide amount L of the operation portions 531 and 516 of the operation stay 530 and the guide operation stay 515 necessary for releasing the engagement is 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 equal to the operation stay 530 and the guide operation stay 515. It is smaller than the slide amount L at which the engagement of 515 is disengaged, and the engagement is not released. Similarly, when the user touches only the operation stay 530, the engagement 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 engagement is released by operating a plurality of operation units together, even if the user accidentally operates one of the operation units, the engagement state of the lower conveyance guide 212 is released and the lower conveyance is performed. It is possible to suppress the guide 212 from suddenly falling and being damaged. Such breakage of the conveyance guide becomes a significant problem when the guide is made of metal. This is because the guide made of metal is heavier than the guide made of resin, and the impact due to dropping is increased. The tension springs 523 and 534 are installed to maintain the engagement state of the guide operation stay 515 and the operation stay 530. When the user operates the operation portion 516 to engage the guide operation stay 515 with the operation stay 530, the engaged portion 518 of the guide operation stay 515 is guided against the tension of the tension springs 523 and 534. It moves along the slope part 532a of the engaging part 532. When the engaged portion 518 of the operation stay 515 gets over the inclined surface 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 engagement by the tension springs 523 and 534. The Therefore, the user does not need to separately perform an operation for engagement, and the operation burden 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。 When releasing the engagement, the operation portion 531 of the operation stay 530 is pushed in the direction of arrow E, the operation portion 516 of the guide operation stay 515 is pushed in the direction of arrow F, and the engagement portions 532 and 518 are slid. According to the configuration of the present embodiment, unlike the configuration using a damper or a magnet catch, the user does not need to apply a force against the force of the damper or the magnet catch. 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 a configuration for holding the lower conveyance guide 212, but the configuration is not limited thereto. The latch mechanism as in the first and third embodiments may be applied to the holding mechanism for the lower conveyance 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 conveyance guide 211 has been described, and in the fourth embodiment, the holding configuration of the lower conveyance guide 212 has been described. In addition to the above, the latch mechanism as described in each embodiment can be applied to a guide portion in which a sheet is conveyed in the vertical direction, such as the movable inlet conveyance guide 241 and the movable outlet conveyance 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。 In the first to fourth embodiments, the electrophotographic image forming apparatus has been described. However, the present invention is not limited to this. It may be a sheet conveying device used in an ink jet type image forming apparatus that forms an image by ejecting ink onto a sheet.

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 DESCRIPTION OF SYMBOLS 100 Finisher 200 Sheet processing apparatus 201 Flapper 211 Upper conveyance guide 212 Lower conveyance guide 213 Holding 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 unit 303 fixed engagement unit 304 guide operation stay 305 operation unit 306 engagement unit 313 fixed engagement unit 317 tension spring 320 operation stay 321 operation unit 322 engagement unit 415 operation guide stay 416 operation unit 418 fixed engagement unit 423 Tension spring 424 engagement portion 430 operation stay 431 operation portion 432 engagement portion 434 tension spring 436 fixed engagement portion

Claims

A first guide member having a guide member for guiding a conveyed sheet and a first operation member provided to be movable with respect to the guide member, the guide member facing the guide member A first guide member provided to be openable and closable with respect to the second guide member
A holding member that engages with the first guide member and holds the guide member in an open position or a closed position with respect to the second guide member;
The holding member has a first member and a second operation member provided to be movable with respect to the first member;
When releasing the holding of the first guide member by the holding member, the direction of moving the first operating member and the direction of moving the second operating member are different directions, respectively.
The sheet conveying apparatus according to claim 1, wherein the holding of the first guide member by the holding member is not released by only one operation of the first operating member and the second operating member.

A first guide member having a guide member for guiding a conveyed sheet and a first operation member provided to be movable with respect to the guide member, the guide member facing the guide member A first guide member provided to be openable and closable with respect to the second guide member
A holding member that engages with the first guide member and holds the guide member in an open position or a closed position with respect to the second guide member;
The holding member includes a first member and a second operation member provided to be movable with respect to the first member,
The first operating member includes a first engaged portion,
The guide member includes a second engaged portion,
The first member includes a first engagement portion that engages with the first engaged portion,
The second operation member includes a second engagement portion that engages with the second engaged portion,
Due to the engagement between the first engaged portion and the first engaging portion and the engagement between the second engaged portion and the second engaging portion, the holding member is moved to the first engaging portion. Holding the guide member,
By moving the first operating member in the first direction, the engagement between the first engaged portion and the first engaging portion is released,
The engagement between the second engaged portion and the second engaging portion is released by moving the second operating member in a second direction different from the first direction. A sheet conveying apparatus that is characterized.

A first guide member having a guide member for guiding a conveyed sheet and a first operation member provided to be movable with respect to the guide member, the guide member facing the guide member A first guide member provided to be openable and closable with respect to the second guide member
A holding member that engages with the first guide member and holds the guide member in an open position or a closed position with respect to the second guide member;
The holding member includes a first member and a second operation member provided to be movable with respect to the first member,
The first operating member includes a first engaged portion,
The second operating member includes a first engaging portion that engages with the first engaged portion,
The holding member holds the first guide member by the engagement between the first engaged portion and the first engaging portion,
The first engaged member and the first are moved by moving the first operating member in a first direction and moving the second operating member in a second direction different from the first direction. The sheet conveying apparatus, wherein the engagement with the one engaging portion is released.

An urging portion provided on at least one of the first operating member and the second operating member, wherein at least one of the first operating member or the second operating member is connected to the first operating member. 4. The sheet conveyance according to claim 1, further comprising a biasing portion that biases the first operation member or the second operation member to be engaged with at least one of the second operation member. 5. apparatus.

5. The sheet conveying apparatus according to claim 1, wherein the first guide member is provided so as to be openable and closable upward with respect to the second guide member. 6.

The first operation member is provided so as to be rotatable with respect to the guide member, and the second operation member is provided so as to be rotatable with respect to the first member. The sheet conveying apparatus according to any one of claims 1 to 5, wherein the engagement is released by rotating the second operation member.

The first operation member is slidably provided with respect to the guide member, and the second operation member is provided slidably with respect to the first member, and the first operation member and the first operation member are provided. The sheet conveying apparatus according to claim 1, wherein the engagement is released by sliding the second operation member.

The slidable amount of the first operating member is L1, the slidable amount of the second operating member is L2, and the first operating portion and the second operating portion necessary for releasing the engagement are slid. Let L be the amount
L> L1
L> L2
L <L1 + L2
The sheet conveying apparatus according to claim 7, wherein:

The sheet conveying apparatus according to claim 1, wherein the first guide member is a metallic guide member.

The part operated by the user of the first operating member is the first operating part, the part operated by the user of the second operating member is the second operating part, and the first operating part and the second operating part The sheet conveying apparatus according to claim 1, wherein the operation unit is provided in a close position.

The part operated by the user of the first operating member is the first operating part, the part operated by the user of the second operating member is the second operating part, and the first operating part and the second operating part 10. The sheet conveying apparatus according to claim 1, wherein the operation unit is provided such that a distance between the first operation unit and the second operation unit is 100 mm or less. 11. .

An image forming apparatus comprising: an image forming unit that forms an image on a sheet; and the sheet conveying device according to claim 1.