JP2013028465A5

JP2013028465A5 -

Info

Publication number: JP2013028465A5
Application number: JP2011167583A
Authority: JP
Filing date: 2011-07-29
Publication date: 2014-09-11
Anticipated expiration: 2031-07-29

Description

本発明は、シート給送部から給送されるシートを、画像形成部に向けて上方に搬送するシート搬送路を有するシート給送装置において、上下方向に配置された開閉軸により開閉自在に支持され、前記シート搬送路を開放可能な開閉扉と、前記開閉軸と直交する水平方向に配置された回動軸により回動自在に支持され、前記開閉扉が閉状態にあるときの前記シート搬送路を構成するガイド位置と前記開閉扉が開状態にあるときの前記シート搬送路を開放可能な開放位置との間を回動自在なガイド部材と、前記開閉扉が開状態から閉動作されると開放位置に位置する前記ガイド部材の先端に当接して前記ガイド部材を前記ガイド位置に向けて掬い上げるカム面及び前記開閉扉が閉状態の際に前記ガイド部材を前記ガイド位置で保持する保持部を有し、前記開閉扉に固定されたカム部と、を備えた、ことを特徴とする。 The present invention provides a sheet feeding apparatus having a sheet conveying path that conveys a sheet fed from a sheet feeding unit upward toward an image forming unit, and is opened and closed by an opening / closing shaft arranged in a vertical direction. The sheet conveyance when the opening / closing door is in a closed state is supported by the opening / closing door capable of opening the sheet conveyance path and a rotation shaft disposed in a horizontal direction orthogonal to the opening / closing axis. A guide member that is rotatable between a guide position that configures a path and an open position where the sheet conveyance path can be opened when the open / close door is in the open state, and the open / close door is closed from the open state. The cam surface that contacts the tip of the guide member located at the open position and scoops up the guide member toward the guide position, and the guide member is held at the guide position when the open / close door is closed. Have part , Equipped with a cam portion fixed to the door, characterized in that.

Claims

In a sheet feeding apparatus having a sheet conveyance path for conveying a sheet fed from a sheet feeding unit upward toward an image forming unit,
An open / close door that is supported by an open / close shaft arranged in the vertical direction so as to be opened and closed, and capable of opening the sheet conveying path;
It is rotatably supported by the rotation shaft disposed in a horizontal direction perpendicular to the control shaft, the said door and guide position constituting the sheet conveying path is opened when the door is in the closed state A guide member that is rotatable between an open position where the sheet conveying path at a certain time can be opened;
When the guide cam surface and the opening and closing door contact with the tip scooping toward the guide member to the guide position of member to which the door is positioned in an open position is closing operation from the open state is closed A holding portion for holding the guide member at the guide position, and a cam portion fixed to the open / close door;
A sheet feeding apparatus characterized by that.

The cam surface, the distal end of the previous SL cam surface and the guide member is above the angle between the tip of the cam surface and the guide member when in contact with is made form such that the obtuse angle,
The sheet feeding apparatus according to claim 1.

The cam surface is formed in a curved shape that curves toward the open / close door toward the top of the open / close door.
The sheet feeding apparatus according to claim 1, wherein the sheet feeding apparatus is a sheet feeding apparatus.

The lower end of the cam surface is located below the tip of the guide member at the open position and the rotating shaft.
The sheet feeding device according to any one of claims 1 to 3, wherein the sheet feeding device is provided.

The sheet feeding apparatus according to claim 1, and the image forming unit that forms an image on a sheet fed by the sheet feeding apparatus.
An image forming apparatus.