JPH0257849U

JPH0257849U -

Info

Publication number: JPH0257849U
Application number: JP13750488U
Authority: JP
Priority date: 1988-10-21
Filing date: 1988-10-21
Publication date: 1990-04-25

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係る用紙搬送装置の
側面図、第２図は同実施例の平面図、第３図、第
４図は同実施例の第２給紙ローラの作用説明図、
第５図は第２給紙ローラの他の実施例の説明図、
第６図、第７図は第２給紙ローラの駆動ローラと
押さえローラとを間歇的に接触、離間させる他の
機構の実施例の説明図、第８図は従来の用紙搬送
装置の側面図、第９図は従来の用紙搬送装置の平
面図である。１０……用紙、１６……第１給紙ローラ、１８
，３６……第２給紙ローラ、２６……キヤプスタ
ンローラ、２８……ピンチローラ、３２……サー
マルヘツド、３４……プラテン、３８……駆動ロ
ーラ、４０……押さえローラ、４６……円弧部、
４８……切除面、５０……用紙ガイド、５２，５
４……ガイド板、５６，５８……ピン、６２，６
４……ばね、８０……回動アーム、８６……ソレ
ノイド、９０……円板カム。 Fig. 1 is a side view of a paper conveyance device according to an embodiment of the present invention, Fig. 2 is a plan view of the embodiment, and Figs. 3 and 4 are explanatory diagrams of the operation of the second paper feed roller of the embodiment. ,
FIG. 5 is an explanatory diagram of another embodiment of the second paper feed roller;
FIGS. 6 and 7 are explanatory diagrams of an embodiment of another mechanism for intermittently bringing the drive roller and presser roller of the second paper feed roller into contact with and separating them from each other, and FIG. 8 is a side view of a conventional paper conveying device. , FIG. 9 is a plan view of a conventional paper conveying device. 10... Paper, 16... First paper feed roller, 18
, 36... Second paper feed roller, 26... Capstan roller, 28... Pinch roller, 32... Thermal head, 34... Platen, 38... Drive roller, 40... Holding roller, 46... arc part,
48...Resection surface, 50...Paper guide, 52,5
4... Guide plate, 56, 58... Pin, 62, 6
4... Spring, 80... Rotating arm, 86... Solenoid, 90... Disc cam.

Claims

[Claims for Utility Model Registration] (1) In a paper conveyance device that grips and conveys paper by a rotationally driven drive roller and a presser roller disposed so as to be able to come into contact with the drive roller, the drive roller and the pressing roller intermittently, and a paper guide is provided on the paper exit side of these rollers to regulate the traveling direction of the paper. (2) The intermittent contact of the presser roller with the drive roller is performed by cutting off a part of the presser roller in the axial direction to form a roller having a substantially D-shaped cross section. paper conveyance device. (3) The paper conveyance device according to claim 1, wherein the intermittent contact of the press roller with the drive roller is performed by making the press roller an eccentric roller. (4) The paper conveying device according to claim 1, wherein the intermittent contact of the presser roller with the drive roller is performed by a cam that moves the presser roller up and down. (5) The paper conveyance device according to claim 4, wherein the cam is provided on a drive shaft to which the drive roller is attached. (6) The paper conveyance device according to claim 1, wherein the intermittent contact of the press roller with the drive roller is performed by a solenoid that moves the press roller up and down. (7) The paper guide is provided along the paper transport path, and comprises a pair of guide plates whose paper input side gradually expands and whose paper output side is parallel to each other. Item 6. The paper conveying device according to any one of Items 1 to 6. (8) The paper conveying device according to claim 7, wherein each of the pair of guide plates is rotatably attached, and a spring is provided on the back surface of the guide plate to urge the guide plates toward each other. (9) One end of the pair of guide plates is fixed,
8. The paper conveyance device according to claim 7, wherein the other end is a free end and is formed of an elastic piece.