Berman, Aisenberg & Platt
Hose snap-action joint
 A hose snap-action joint includes a cylinder member comprising an arc-shaped inwardly-directing engaging portion disposed on the inner surface thereof projecting in the radial direction inwardly; an insert pipe member; an engaging member comprising an arc-shaped outwardly-directing engaging portion projecting in the radial direction thereof outwardly, and the outwardly-directing engaging portion made engageable with the inwardly-directing engaging portion at a predetermined angle position by the engaging surface thereof facing in the direction perpendicular to the axial direction thereof; a locking ring disposed in a manner rotatable integrally with the engaging member and relatively movable in the axial direction thereof by a predetermined distance; a spring for urging the locking ring to the cylinder member; and a locking mechanism comprising a locking groove formed on the cylinder member and a locking portion formed on the locking ring. When the locking ring is pressed into the cylinder member by the spring and the locking ring and the engaging member are turned by a predetermined angle, the locking mechanism prohibits the locking ring and the engaging member from turning and the inwardly-directing engaging portion and the outwardly-directing engaging portion engage with each other, thereby connecting the hose with the mating member. The hose and the mating member cannot be disconnected accidentally. The device may be made of plastic. 
Tokai Rubber Industries, Ltd.
F F
F16L F16L
inventional inventional
Hisayuki
Ito