| 摘要 |
PURPOSE:To improve the supporting strength of the pivotal shaft for a loose pulley by connection-supporting a supporting body for supporting the pivotal shaft of the loose pulley by a case-body side-wall and the bearing body of a main pulley. CONSTITUTION:A bearing body 2 which supports a driving body 4 connected to a main pulley 5 through a bearing 11 is installed by a bolt 12 onto a case- body side-wall 1 consisting of a thin plate. Though a loose pulley 7 for guiding a belt laid onto the main pulley 5 is supported onto a pivotal shaft 8, one edge of said pivotal shaft 8 is installed onto the case-body side-wall 1 by a bolt 15, and the other edge is supported onto a supporting body 9 installed onto the bearing body 2 of the main pulley. Therefore, the pivotal shaft 8 can be certainly supported in comparison with the case where the pivotal shaft 8 is supported only by the case-body side-wall consisting of the thin plate. |
