초록 ▼

Gymnasium equipment has a vertically movable column on the upper end of which are a pair of arm retention tubes which will accept arms of various items of ancillary equipment to perform a range of gymnasium functions. A gymnast will cause the ancillary equipment, and therefore the retention tubes, t

Gymnasium equipment has a vertically movable column on the upper end of which are a pair of arm retention tubes which will accept arms of various items of ancillary equipment to perform a range of gymnasium functions. A gymnast will cause the ancillary equipment, and therefore the retention tubes, to rock about in horizontal axis, and in doing so cause a piston to move in or out of an hydraulic cylinder, displacing oil from the cylinder through a valve at a rate which is adjustable. With simple and inexpensive ancillary equipment, the invention makes it possible to achieve many different gymnastic functions.

대표청구항 ▼

Gymnasium equipment comprising a base frame, a guide upstanding from the base frame, a vertically movable column carried by the guide for relative vertical movement, a hinge having a horizontal pivotal axis on the upper end of the column, retention means carried on the hinge and constructed to suppo

Gymnasium equipment comprising a base frame, a guide upstanding from the base frame, a vertically movable column carried by the guide for relative vertical movement, a hinge having a horizontal pivotal axis on the upper end of the column, retention means carried on the hinge and constructed to support ancillary equipment, a hydraulic pump operatively located between the retention means and the movable column such that pivotal movement of the retention means about said axis causes actuation of the hydraulic pump, a valve having flow rate adjustment means, and conduits extending from the hydraulic pump to the valve, said hydraulic pump being actuatable by said pivotal movement of said retention means to displace hydraulic fluid through said valve via said conduits, said retention means including a pair of retention tubes and means for adjusting an angular relationship of each of said retention tubes independently with respect to said hinge.