JPS6096333U

JPS6096333U - Friction roller separation paper feeding device

Info

Publication number: JPS6096333U
Application number: JP18749483U
Authority: JP
Inventors: 修司高橋; 石井　泰明; 敏明亀山; 克己栗原; 暢史豊福; 俊哉矢部井; 水摩　健一
Original assignee: 株式会社リコー
Priority date: 1983-12-06
Filing date: 1983-12-06
Publication date: 1985-07-01

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の摩擦ローラ分離給紙装置の一例を示す縦
断面図、第２図は第１図の■−■線による断面図、第３
図は第１図の■−■線による断面図、第４図は第１図に
示す装置においてレジストローラにより用紙を給送する
場合の用紙に作用する力を説明する図式図、第５図は本
考案の実施例を示す縦断面図、第６図はその装置におい
てレジストローラにより用紙を給送する場合の用紙に作
用する力を説明する図式図、第７図は本考案に使用する
トルクリミッタの作用を説明する図式図である。２・・・フィードローラ、３・・・リバースローラ、５
′・・・揺動アーム、２０・・・揺動アームの支点、Ｔ
・・・トルクリミッタ。／／／／／／／／− 第１図Fig. 1 is a longitudinal sectional view showing an example of a conventional friction roller separation paper feeding device, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig.
The figure is a sectional view taken along the line ■-■ in Figure 1, Figure 4 is a schematic diagram illustrating the force acting on the paper when the paper is fed by the registration roller in the apparatus shown in Figure 1, and Figure 5 is a A vertical cross-sectional view showing an embodiment of the present invention, FIG. 6 is a schematic diagram illustrating the force acting on paper when paper is fed by registration rollers in the device, and FIG. 7 is a torque limiter used in the present invention. FIG. 2...Feed roller, 3...Reverse roller, 5
'... Swing arm, 20... Swing arm fulcrum, T
...Torque limiter. ////////- Figure 1

Claims

[Scope of utility model registration request]

A friction roller separation paper feeding device that has a feed roller that rotates in the paper feeding direction and a reverse roller that pinches and presses against the paper path and is rotatable in forward and reverse directions, and a torque limiter applies a constant torque in the opposite paper feeding direction. The reverse roller has its axis fixed in position, and the feed roller is pivotally supported by the tip of an arm that swings about a point on the upstream side of the feed roller in the paper feeding direction. The above torque limiter consists of a hub that rotates together with the reverse roller, a hub adjacent to the hub that is rotationally driven by a drive source, and a coil spring that is wound with an appropriate tightening force across both of the knobs, When the reverse roller receives torque from the feed roller in the co-rotating direction, the above spring tightens both hubs, and if the torque becomes larger than a predetermined value, the spring transmits a constant torque to either hub as a slip. A friction roller separation sheet feeding device characterized by being a spring torque limiter of a type designed to.