| 摘要 |
1479368 Knitting machines; knitted pile fabrics SULZER MORAT GmbH 22 Aug 1974 [31 Aug 1973] 36996/74 Headings D1C and D1K Each feed of a circular knitting machine adapted to produce pile fabric comprises a patterning mechanism 11 for selecting needles 17 to be lifted (on to a cam 13) to take up a pile thread or pile fibres, a feed point 39 for a ground thread and an adjustable knocking- over cam segment 15 such that for knitting a patterned pile fabric respective pile fibres or threads of different colours are fed at successive feeds to the various selected needles (non- selected needles passing at each feed along a miss 25 or tuck cam track) and the cam segments 15 of all but the last feed are raised to inoperative positions while that of the last feed occupies the knit position shown so that all needles take up ground thread and knit at this feed only, thereby avoiding the formation of bare patches having ground fabric only. Each segment 15 is mounted on a slide 51 urged upwards, together with a slide 57 carrying a guide cam segment 45, by a spring 61. A cam 63 engages the slide 51, being held in place against spring 85, 86 force by a lever engaging in a space 77, and controls stitch length in accordance with a setting means 65 provided with a dial 67. Removal of the lever frees the slide for movement to the inoperative position under the action of the spring 61 and of a further lever. As well as setting the cam segments 15 to inoperative position, the ground yarn feeders may be moved to inoperative position at the appropriate feeds. As shown in Fig. 5 cam segments 105 controlling sinkers 99 are moved to inoperative positions (broken lines) by deflector levers 101 at such feeds of the machine. The cams segments 15, 45, 105 may be automatically controlled by electromagnets or piston-cylinder devices. |
