摘要:
A fast adjusting tripod system (10) is provided for supporting the weight of a worker during entry to and exit from a manhole beneath the tripod system (10). The tripod system (10) includes a central frame (16); three support legs (18) extending from the frame (16), with each of the legs (18) being pivot mounted to the frame (16); a linkage mechanism (20) operably connecting the legs (18) to pivot together relative to the frame (16); and a stop (22) configured to selectively lock the linkage mechanism (20) against movement relative to the frame (16) at a plurality of distinct, predetermined pivot angle positions of the legs (18) relative to the frame (16).
摘要:
An equipment support system has a first telescoping arm and a second telescoping arm. The arms are pivotable relative to a room wall about a generally vertical axis and are extendable and retractable along respective generally horizontal axes. A first equipment support is coupled to the first telescoping arm and is configured to support patient care equipment thereon. A second equipment support is coupled to the second telescoping arm and is configured to support patient care equipment thereon.
摘要:
A step ladder assembly has three legs (1, 5, 6) which are pivotably mounted at their upper ends, and which are associated with stop means (8) to define a limit of outward pivoting for the legs. One of the legs (1) has steps (2) mounted thereon. A wedging member (9) is movable upwards between the legs (1, 5, 6) to urge them outwardly against the stop means (8) thereby to define, with the stop means (8), predetermined pivotal positions of the legs (1, 5, 6). The wedging member (9) is coupled to a support rod (10) which is movable up and down with the wedging member (9) and which provides, in an upwards position of the wedging member (9), a support above a working platform (7) of the assembly. The stop means (8) is provided at least partly by edges of rigid sheet material forming the working platform (7) of the assembly, the edges being lower inner edges of the rigid sheet material after it has been folded-under along a rim of the working platform (7). One of the legs (1) is fitted at its lower end with an angularly rotationally adjustable bifurcation providing two feet for the leg.
摘要:
A leg for a dual stage tripod including a mechanism for actuating the lower lock assembly from the upper end of the leg. The leg includes telescoping upper (46), middle (48), and lower (50) leg portions, and upper and lower lock assemblies for coupling the upper and middle leg portions together, and the middle and lower leg portions together, respectively. An elongated torque shaft (270) extends substantially parallel the upper leg portion, downward from the upper end of the leg to a transfer assembly coupled to the upper end of the middle leg portion. The transfer assembly is coupled to the lower lock assembly disposed at the lower end of the middle leg portion such that rotation of the torque shaft about its longitudinal axis results in an actuating force which actuates the lower lock assembly.
摘要:
Les chariots transporteurs utilisés jusqu'à présent pour les trépieds photographiques ne sont pas utilisables sur le terrain, étant donné qu'ils ne forment pas d'unité avec le trépied. Le chariot transporteur selon l'invention se compose d'une partie inférieure, mobile grâce à 2 roues (4, 5), sur laquelle sont vissées 2 branches (2, 7) du trépied photographique, ce qui permet de tirer et de guider le véhicule au moyen de la poignée du trépied comme une charrette à bras.