| 摘要 |
<p>A knitting cam (12a) which engages with butts (6, 7) for controlling forward and backward movements of needles having different projecting amounts in order to form a small stitch and a large stitch in the same course is provided with a common lowering cam face (21) for lowering the butts of both a needle for the formation of a small stitch and a needle for the formation of a large stitch, a stitch size determining cam face (23) for a small stitch contiguous to the common lowering cam face (21), and a stitch size determining cam face (25) for a large stitch located rearwardly of the stitch size determining cam face (23) for a small stitch and having a lesser thickness than the common lowering cam face (21) for acting upon a butt which projects by a greater amount. The cam (12a) is further provided with lowering movement restricting means (24a, 24b) for restricting the maximum lowered position at least of the needle for the formation of a small stitch. By this means the jumping of needles at high speeds of movement of the needles and carriage is prevented. <MATH></p> |
