JPS63173155U

JPS63173155U -

Info

Publication number: JPS63173155U
Application number: JP6485787U
Authority: JP
Priority date: 1987-04-27
Filing date: 1987-04-27
Publication date: 1988-11-10
Anticipated expiration: 2002-04-27
Also published as: JPH0636029Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例のペーパースイツチ
バツク搬送機構の構成概念図で、ペーパーを送り
進めるときの状態を示している。第２図は第１図
におけるＡ矢視図、第３図は第１図および第２図
に示す状態での移動ガード部材を取り出して示し
た斜視図、第４図はペーパーをスイツチバツクす
る状態の第１図相当図、第５図は第４図における
Ａ矢視図、第６図は第４図及び第５図の状態にお
ける第３図相当図、第７図は従来のペーパースイ
ツチバツク搬送機構の構成概念図である。符号の説明、１……ペーパースイツチバツク搬
送機構、３……搬送ローラ対、７……排紙ローラ
対、８……上側ローラ、１０……反転ローラ、１
３……ガイド板、１４……移動ガード部材、１４
ａ……貼着部分、１４ｂ……鍔状突起、Ｐ……ペ
ーパー。 FIG. 1 is a conceptual diagram of the structure of a paper switchback transport mechanism according to an embodiment of the present invention, showing the state in which paper is advanced. Fig. 2 is a view in the direction of arrow A in Fig. 1, Fig. 3 is a perspective view of the movable guard member taken out in the state shown in Figs. 1 and 2, and Fig. 4 shows the state in which the paper is switched back. Fig. 5 is a view corresponding to Fig. 1, Fig. 5 is a view in the direction of arrow A in Fig. 4, Fig. 6 is a view corresponding to Fig. 3 in the state of Figs. 4 and 5, and Fig. 7 is a conventional paper switch bag conveyance mechanism. FIG. Explanation of symbols, 1...Paper switchback transport mechanism, 3...Transport roller pair, 7...Paper discharge roller pair, 8...Upper roller, 10...Reversing roller, 1
3... Guide plate, 14... Moving guard member, 14
a... Adhesive part, 14b... Flange-shaped process, P... Paper.

Claims

[Claims for Utility Model Registration] 1. Paper is fed in the opposite direction to the rotational direction of a switch crawler that rotates in one direction, and when the paper is fed halfway, a reversing roller presses the paper against the switch crawler, and the switch crawler In a paper switchback transport mechanism that sends paper back by rotation, when the paper is not pressed against the switchback crawler by the reversing roller, it protrudes beyond the circumferential surface of the switchback roller to the reversing roller side and the paper does not come into contact with the switchback crawler. A movable guard member is provided to prevent the paper from coming into contact with the circumferential surface of the switch crawler by being pushed down by the reverse roller via the paper when the paper is pressed against the switch crawler by the reverse roller. A paper switchback transport mechanism characterized by: 2. The paper switchback transport mechanism according to claim 1, wherein the movable guard member is formed of a flexible thin piece. 3. The paper switchback transport mechanism according to claim 1 or 2, wherein the switchback crawler is an upper roller of a pair of paper discharge rollers of a double-sided copying machine.