| 摘要 |
<p>The cams (11) for controlling the operation of a sewing machine, in particular for selection of the type of sewing stitch, are made on a single support (10) which can be replaced by removal from a special housing in the sewing mahine and locked in operative position. …<??>A locking mechanism comprises a locking part (18), having coupling elements (19) on respective arms, mounted on a shaft (23) and a stop member (27, 29) pivotally mounted on the support (10). Pivotting of the member (27) to a down position produces locking engagement between stops (29) and the coupling elements (19).</p> |
