| 摘要 |
<p>A needle cam (45) acts on a selecting bat of a select jack to push down the same forcibly to a B-position with its protrusion (45a). When a needle is selected by a first needle actuator (50), a selector is pushed up to a position corresponding to an H-position of the select jack by a raised portion (48b) of a raising selector guide cam (48), thereby to push up the select jack to the H-position. The protrusion (45a) of the needle guide cam (45) and the two raised portions (48a, 48b) of the raising selector guide cam (48) realize the function of a select jack lowering cam of bolt type, thereby to eliminate the moving portions.</p> |
