Invention Grant
- Patent Title: Back tension mechanism and roll medium conveying device
- Patent Title (中): 背张力机构和卷筒介质输送装置
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Application No.: US14945603Application Date: 2015-11-19
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Publication No.: US09333778B1Publication Date: 2016-05-10
- Inventor: Shinya Saito
- Applicant: Oki Data Corporation
- Applicant Address: JP Tokyo
- Assignee: Oki Data Corporation
- Current Assignee: Oki Data Corporation
- Current Assignee Address: JP Tokyo
- Agency: Panitch Schwarze Belisario & Nadel LLP
- Priority: JP2015-048109 20150311
- Main IPC: B41J15/16
- IPC: B41J15/16
Abstract:
A back tension mechanism includes: a shaft to be connected to an axle of a medium roll; a rotation transmitting member connected to the shaft via a torque limiter and having an engaging portion; a first rotating member having a first engaged portion configured to, when the rotation transmitting member rotates in a first direction, engage with the engaging portion to receive a rotational force; a second rotating member having a second engaged portion configured to, when the rotation transmitting member rotates in a second direction opposite to the first direction, engage with the engaging portion to receive a rotational force; an urging member for urging the first rotating member in the second direction and the second rotating member in the first direction; and a base for limiting a range of rotation of the first rotating member and a range of rotation of the second rotating member.
Information query
IPC分类:
