JPH03116334U

JPH03116334U -

Info

Publication number: JPH03116334U
Application number: JP2369490U
Authority: JP
Priority date: 1990-03-12
Filing date: 1990-03-12
Publication date: 1991-12-02

Description

[Brief explanation of drawings]

第１図は本考案の第一の実施例を示す斜視図、
第２図は第１図の部分側面図、第３図は第２の実
施例を示す部分斜視図、第４図は第３図の部分断
面図、第５図は第３の実施例を示す部分側面図、
第６図は第４の実施例を示す説明図、第７図は従
来例を示す斜視図である。６……プーリ、１８……アーム、１９……アイ
ドラプーリ、２０……バネ。 FIG. 1 is a perspective view showing a first embodiment of the present invention;
FIG. 2 is a partial side view of FIG. 1, FIG. 3 is a partial perspective view of the second embodiment, FIG. 4 is a partial sectional view of FIG. 3, and FIG. 5 is a third embodiment. partial side view,
FIG. 6 is an explanatory view showing the fourth embodiment, and FIG. 7 is a perspective view showing a conventional example. 6...Pulley, 18...Arm, 19...Idler pulley, 20...Spring.

Claims

[Scope of Claim for Utility Model Registration] (1) A belt is hung around a pulley fixed to the rotating shaft of the motor and a pulley fixed coaxially with the feed roller, and an idler pulley is pressed against the belt by a biasing means to apply tension. In a tension idler mechanism of a media conveyance mechanism that runs a belt by rotation of a motor and runs a medium by rotation of a feed roller associated with the rotation of a motor, one end of an arm is rotatably supported on the rotation axis of one of the pulleys. The tension idler mechanism is also characterized in that an idler pulley is rotatably attached to the other end of the arm in contact with the pulley via a belt, and means is provided for applying a force to rotate the arm around the rotation axis of the pulley. (2) The tension idler mechanism according to claim (1), wherein a spring is used as a means for applying a force to rotate the arm. (3) The tension idler mechanism according to claim (1), wherein frictional force is used as a means for applying force to rotate the arm.