| 摘要 |
<p>A centered/decentered power transmission wheel (10), in which a disc wheel (15), which constitutes the transmission wheel (10), is provided so that it can be moved slidingly along a support member (13), which is mounted on a rotary shaft (11), to maintain by removing or re-mounting a bushing (14), which is normally fitted in the transmission wheel (10), from or on the power transmission wheel (10) the center (C) of rotation of the disc wheel (15) and the axis (0) of the rotary shaft (11) in alignment with each other while the transmission wheel (10) is in a normal operation, and out of alignment while the replacement of a belt or the repairing of a part is carried out, whereby the replacement of a belt, the repairing of a part and other kinds of operations can be carried out speedily without moving the rotary shaft (11) itself.</p> |
