发明授权
- 专利标题: Belt drive puller mechanism
- 专利标题(中): 皮带驱动牵引机构
-
申请号: US223640申请日: 1994-04-06
-
公开(公告)号: US5448959A公开(公告)日: 1995-09-12
- 发明人: Phounsavath Nanthavong , Donald J. Hicks
- 申请人: Phounsavath Nanthavong , Donald J. Hicks
- 申请人地址: IL Huntley
- 专利权人: Union Special Corporation
- 当前专利权人: Union Special Corporation
- 当前专利权人地址: IL Huntley
- 主分类号: D05B27/00
- IPC分类号: D05B27/00 ; D05B27/14
摘要:
A workpiece puller mechanism for a sewing machine including a carrier including a feed shaft mounted thereon that supports a feed roller. The periphery of the feed roller is biased downwardly into engagement with the upper surface of the workpiece while the lower surface is engaged by the feed dogs. A puller housing is mounted on the sewing machine having a puller shaft rotatably mounted for rotation therein. Rotation of the puller shaft is imparted by a timing belt that overlies sprockets on the sewing machine main drive shaft and the puller shaft. The puller shaft carries a crank head that is connected by a connecting bar assembly to the input member of a one way clutch assembly. The one way clutch assembly provides drive in one direction only to the drive shaft for the feed roller.
公开/授权文献
- US4920095A Superconducting energy storage device 公开/授权日:1990-04-24
信息查询