JPH0325449U

JPH0325449U -

Info

Publication number: JPH0325449U
Application number: JP8479189U
Authority: JP
Priority date: 1989-07-19
Filing date: 1989-07-19
Publication date: 1991-03-15

Description

[Brief explanation of drawings]

第１図〜第１０図はこの考案の第１実施例を示
しており、第１図は原稿給送装置の縦断側面図、
第２図はスライドプレート近傍の側面図、第３図
は駆動ローラ側のスライドプレート近傍の構造を
示す部分平面図、第４図は抑えローラの支持部の
側面図、第５図は同じく横断面図、第６図は湾曲
反転部の縦断面図、第７図はフラツパ近傍の構成
説明図、第８図は同じく入口側櫛状舌片近傍の構
成説明図、第９図は給紙部の縦断側面図、第１０
図は同じく開放時の給紙部の縦断側面図、第１１
図、第１２図は変形例を示しており、第１１図は
ベルトローラの支持手段を回動プレートにしたも
のの構成説明図、第１２図は段差部の移行手段を
弾性薄片とした湾曲反転部の縦断側面図である。Ｃ……画像形成装置（電子複写装置）、Ｐ……
プラテン、Ｐ１……プラテンの給紙側端縁、Ｐ２
……最大用紙サイズにおける露光限界、Ａ……入
口側段差部、Ｂ……出口側段差部、１０……原稿
給送装置、１１……枠体、１２……側板、１３…
…支持軸穴、１３ａ……開放切欠部、１４……ス
ライド長穴、１５……原稿載置台、２０……給紙
部、２５……分離部、３５……レジストローラ、
３６……ピンチローラ、３８……ピンチレバー、
４５……繰込ガイド部、４５ａ……繰込ガイド部
の開口端、５０…搬送部、５１……駆動ローラ（
ベルトローラ）、５２……従動ローラ（ベルトロ
ーラ）、５３……駆動ローラの軸受、５４……従
動ローラの軸受、５７……スライドプレート（支
持手段）、５７ａ……軸受支持部、５８……スラ
イドピン、６０……固定小ねじ、６１……抑えロ
ーラ、６１ａ……抑えローラ軸、６２……抑えロ
ーラホルダ、６３……搬送ベルト、６５……回動
プレート（支持手段）（変形例）、６６……回動
支点、７０……湾曲反転部、７１……入口ガイド
部、７３……レバー式センサ、７３ａ……センサ
レバー、７４……反転ローラ、７５……固定部、
７６……櫛状舌片、７８……中間ガイド部、７８
ａ……多歯状部、７９……出口ガイド部、８１…
…出口側櫛状舌片、８２……フラツパ（切換手段
）、８２ａ……多歯状部、８６……入口側弾性薄
片、８７……出口側弾性薄片。 1 to 10 show a first embodiment of this invention, and FIG. 1 is a vertical side view of the document feeding device;
Figure 2 is a side view of the vicinity of the slide plate, Figure 3 is a partial plan view showing the structure of the vicinity of the slide plate on the drive roller side, Figure 4 is a side view of the support portion of the pressure roller, and Figure 5 is a cross section as well. 6 is a longitudinal sectional view of the curve reversal section, FIG. 7 is an explanatory diagram of the configuration near the flapper, FIG. 8 is an explanatory diagram of the configuration near the comb-shaped tongue on the entrance side, and FIG. Longitudinal side view, No. 10
The figure is also a longitudinal cross-sectional side view of the paper feed section when opened, No. 11
Figures 12 and 12 show modified examples, and Figure 11 is an explanatory diagram of the structure of one in which the support means for the belt roller is a rotary plate, and Figure 12 is a curved inversion section in which the transition means of the stepped portion is an elastic thin piece. FIG. C... Image forming device (electronic copying device), P...
Platen, P1...Paper feed side edge of platen, P2
. . . Exposure limit at maximum paper size, A . . . Entrance side step, B .
...Support shaft hole, 13a...Open notch, 14...Slide elongated hole, 15...Document mounting table, 20...Paper feed section, 25...Separation section, 35...Registration roller,
36...pinch roller, 38...pinch lever,
45... Feeding guide part, 45a... Opening end of feeding guide part, 50... Conveyance part, 51... Drive roller (
(belt roller), 52... Driven roller (belt roller), 53... Drive roller bearing, 54... Driven roller bearing, 57... Slide plate (supporting means), 57a... Bearing support part, 58... Slide pin, 60... Fixing machine screw, 61... Holding roller, 61a... Holding roller shaft, 62... Holding roller holder, 63... Conveyor belt, 65... Rotating plate (supporting means) (modified example) , 66...Rotation fulcrum, 70...Curved reversing part, 71...Entrance guide part, 73...Lever type sensor, 73a...Sensor lever, 74...Reversing roller, 75...Fixing part,
76...Comb-shaped tongue piece, 78...Intermediate guide portion, 78
a...Multi-toothed part, 79...Exit guide part, 81...
...Exit side comb-like tongue piece, 82...Flapper (switching means), 82a...Multi-toothed portion, 86...Entrance side elastic thin piece, 87...Exit side elastic thin piece.

Claims

[Scope of Claim for Utility Model Registration] A document placement table, a paper feeding unit that feeds the document from the document placement table, and a conveyor that sends the fed document onto the platen of the image forming apparatus and positions it at a predetermined position. In the document feeding device, the opening end of the feeding guide section that guides the document from the paper feeding section to the transportation section is connected to the opening end of the feed guide section that guides the document from the paper feeding section to the transportation section. The feeding guide section is set at an intermediate portion between the edge of the document feeding side of the platen and the exposure limit position for the largest sheet of the image forming apparatus, and the feeding guide section guides the document along the platen and guides the document into the transport section. A document feeding device characterized in that the document feeding device is provided at an angle with respect to a platen surface so as to enter the document feeding device.