PURPOSE: To prevent a fluid from confining in each valve stem and leakage at separation by constituting the title apparatus wherein each valve stem is advanced and retreated under an always contacted condition when each inner flow path in a plurality of joint nozzles, is communicated and shut by each valve stem.
CONSTITUTION: The first and the second joint nozzles 1 and 2 having the first and the second inner flow paths 5 and 16 each independently connected with an extrusion flow path R1 and a feeding flow path R2 for a fluid, are arranged concentrically so as to be mutually brought into contact with each other or separable. The first valve stem 9 opening and closing an opening 7 of the first inner flow path 5 and the first spring 20 pushing it in the returning direction are provided on the first joint nozzle 1. On the other hand, the second valve stem 23 opening and closing an opening 17 of the second inner flow path 16 and being butted to the first valve stem 9 when both joint nozzles 1 2 are brought into contact each other, and the second spring 27 pushing it in the returning direction are provided on the second joint nozzle 2. In addition, a clamp mechanism 33 clamping both joint nozzles 1 and 2 under jointed condition is also provided.
SAITO ATSUSHI
KANIE NORIYUKI
ISHIKURI YUTARO
MIURA HIROSHI
SATO YASUHIRO
| JPS56153190A | 1981-11-27 |