| 摘要 |
<p>PCT No. PCT/EP96/03882 Sec. 371 Date Jun. 15, 1998 Sec. 102(e) Date Jun. 15, 1998 PCT Filed Sep. 4, 1996 PCT Pub. No. WO97/10458 PCT Pub. Date Mar. 20, 1997A pneumatic valve device for a yarn feeding device includes a housing, at least two valves in flow channels leading to a plurality of consumers, and first and second valve openers. The first valve opener establishes a connection with at least one consumer, whereas the second valve opener can establish a connection with all of the consumers. Flow channels are provided which are separated from one another and lead to the at least one consumer and to the remaining consumers, and a unilaterally operating drag coupling is also provided between the second valve opener and the valve that is actuated by the first valve opener. The actuating movement of the second valve opener is also transferable to the valve by means of the unilaterally operating drag coupling. In the yarn feeding device, a first threading nozzle or the first and at least a second threading nozzle are selectively pressurized by means of the valve device, optionally together with a pneumatic piston-cylinder unit.</p> |
