| 摘要 |
<p>PURPOSE: To transport fluid to the same direction or an opposite direction by arranging a second fluid pathway which is independent from a first fluid pathway and leads through two joint members and bearing bodies, and arranging a gasket for sealing off the second pathway from the outside. CONSTITUTION: The second fluid pathways 12' to 14', 16' to 20' which are independent from the first fluid pathways 12 to 14, 16 to 20 and lead through the joint members 1, 5 and bearing bodies 3, 6, and a gasket for sealing off the second fluid pathways from outside, are arranged. And, in the first and the second fluid pathways, pocket ditches 18, 18' are respectively formed in the bearing surface 6a of the bearing body 6, and meanwhile pathways 19, 19' are formed in the other bearing surface. Furthermore, nipples 21, 21' are inserted into pathways 19, 19' and further into the ditches 18, 18' to become a stopper. Namely, while a joint reaches to the permissible upper and lower limits of a pivot or a swivel movement, as the nipples 21, 21' touch the wall of the ditches 18, 18', the permissible pivot or swivel movement range of the joint are limited.</p> |
