Hydraulically assisted restraint device

Details Hydraulically assisted restraint device Hydraulically assisted restraint device

B - Operations, Transporting

65

G

B65G 69/28 (2006.01) F16F 9/19 (2006.01)

Patent

CA 2389455

A device for restraining the upward movement of a dock comprising a hydraulic cylinder having a fixed end; a piston slideably disposed in said cylinder so as to define opposed first and second chambers; a rod having one end connected to said slideable piston, extending through said first chamber and having another end adapted for connection to said dock; hydraulic reservoir containing hydraulic fluid communicating with said first chamber; valve means disposed between said reservoir and said first chamber, said valve means having open position permitting said hydraulic fluid to flow from said first chamber to said reservoir and extending said rod in response to said upward movement of said dock; a closed position stopping the flow of said hydraulic fluid from said first chamber to said reservoir and restraining the upward movement of said dock.

Un dispositif d'arrimage du mouvement ascendant d'un quai comprenant un vérin hydraulique ayant une extrémité fixe; un piston logé dans ledit vérin de manière à ce que le piston soit coulissant pour définir la première chambre et la deuxième chambre opposées l'une à l'autre; une tige ayant une extrémité reliée audit piston coulissant, se prolongeant à travers ladite première chambre et une deuxième extrémité adaptée pour être reliée audit quai; un réservoir hydraulique contenant un fluide hydraulique communiquant avec ladite première chambre; ledit système de soupape disposé entre ledit réservoir et ladite première chambre, ledit système de soupape ayant une position ouverte permettant audit fluide hydraulique de s'écouler de ladite première chambre vers ledit réservoir et rallongeant ladite tige en réponse audit mouvement ascendant du quai; une position fermée arrêtant le débit dudit fluide hydraulique de ladite première chambre vers ledit réservoir et causant l'arrimage du mouvement ascendant dudit quai.

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