JPS6268939U

JPS6268939U -

Info

Publication number: JPS6268939U
Application number: JP16118985U
Authority: JP
Priority date: 1985-10-21
Filing date: 1985-10-21
Publication date: 1987-04-30
Anticipated expiration: 2000-10-21
Also published as: JPH056285Y2

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案の一実施例を、他の
主要フアクシミリ構成部材と共に示し、第１図は
略側面図、第２図は略斜視図、第３図は上記実施
例の作動を示すフローチヤート、第４図は本考案
の別の実施例を示す略斜視図、第５図は第４図の
実施例の作動を示すフローチヤート、第６図は本
考案の更に別の実施例を示す略斜視図、第７図は
第６図の実施例におけるトルクリミタ２５の詳細
図であつて、ａ図は断面図、ｂ図はａ図Ｘ―Ｘ部
断面図、第８図は第７図の実施例の作動を示すフ
ローチヤートである。１…原稿台、２…無端ベルト、４…給紙用ロー
ラ、５…原稿分離用ローラ、６ａ，６ｂ…送紙ロ
ーラ、７ａ，７ｂ…排紙ローラ、２１…ラチエツ
ト、２２…爪、２４…ソレノイド（ｓｏＬ）、２
５…トルクリミタ、Ｍ…ステツプモータ、ＭＣ…
電磁クラツチ、Ｃ１，Ｃ２…ワンウエイクラツチ
、ＤＳ１，ＤＳ２，ＤＳ３…センサ。 1 and 2 show an embodiment of the present invention together with other main facsimile components, FIG. 1 being a schematic side view, FIG. 2 being a schematic perspective view, and FIG. 3 being an operation of the above embodiment. FIG. 4 is a schematic perspective view showing another embodiment of the present invention. FIG. 5 is a flow chart showing the operation of the embodiment of FIG. 4. FIG. 6 is a flow chart showing yet another embodiment of the present invention. FIG. 7 is a detailed view of the torque limiter 25 in the embodiment shown in FIG. 6, FIG. 7 is a sectional view, FIG. 8 is a flowchart showing the operation of the embodiment of FIG. 7. DESCRIPTION OF SYMBOLS 1... Original table, 2... Endless belt, 4... Paper feeding roller, 5... Document separation roller, 6a, 6b... Paper feeding roller, 7a, 7b... Paper ejection roller, 21... Ratchet, 22... Claw, 24... Solenoid (soL), 2
5...torque limiter, M...step motor, MC...
Electromagnetic clutch, C1, C2... one-way clutch, DS1, DS2, DS3... sensor.

Claims

[Scope of Claim for Utility Model Registration] (1) One or more endless belts are installed on a part of the document table with the running direction aligned with the paper feed direction, and the paper feed is driven in the paper feed direction. The document separation feeder consists of a document separation roller that presses against the paper feed roller from above, is driven in both the paper feeding direction and the opposite paper feeding direction, and is further braked as necessary. One or more pairs of feed rollers are installed with their nipping points facing the document feed side end of the document table, and rotation of the paper feed roller and document separation roller in the paper feed direction as well as the rotation of the endless belt are performed. As the document runs, the leading edges of all the documents on the document table are taken in between the pair of document separation and supply rollers, and the document separation and supply rollers are rotated in the paper feeding direction and the document separation rollers are rotated in the opposite direction. What is claimed is: 1. A document feeding device for a facsimile machine having a horizontal document table, characterized in that only the lowest document among the original documents is separated and fed. (2) The document feeding device according to claim 1, wherein the document separating roller braking means comprises a ratchet fixed to the drive shaft of the document separating roller and a pawl that engages with the ratchet. (3) The document separating roller braking means is composed of a torque limiter attached to the drive shaft of the document separating roller, and the torque limiter applies a braking force to the document separating roller to an extent that does not make it difficult for the motor to drive the document separating roller. The document feeding device according to claim 1, which affects a drive shaft.