发明授权
- 专利标题: Web tension equalizing roll and tracking apparatus
- 专利标题(中): 网张力均衡辊跟踪装置
-
申请号: US798238申请日: 1997-02-11
-
公开(公告)号: US5833171A公开(公告)日: 1998-11-10
- 发明人: J. C. Harris
- 申请人: J. C. Harris
- 申请人地址: IL Des Plaines
- 专利权人: Equa-Liner Systems, L.L.C.
- 当前专利权人: Equa-Liner Systems, L.L.C.
- 当前专利权人地址: IL Des Plaines
- 主分类号: B21B39/00
- IPC分类号: B21B39/00 ; B21B39/08 ; B65H23/025 ; B65H23/038 ; B65H27/00
摘要:
A rotating sleeve coaxially mounted upon an inner nonrotating pivoting sleeve by at least two rotary bearings on either side of a center mounted pivoting bearing assembly within the nonrotating pivoting sleeve supported by a stationary shaft. The nonrotating pivoting sleeve is balance-mounted in the center of the axis shaft with the pivoting bearing assembly. The pivoting bearing assembly permits a selected degree of lateral rotation in a range of from about 1 degree to about 10 degrees. As a web runs over the rotating sleeve any imbalance of lateral tension will cause the nonrotating pivoting sleeve to pivot at it's center with respect to the longitudinal axis of the shaft permitting the nonrotating pivoting sleeve and coaxial rotating sleeve to pivot upward on the side of least tension until the web tension is equalized across the coaxial rotating sleeve.
公开/授权文献
- US4649400A Thermal printer control device 公开/授权日:1987-03-10
信息查询