| 摘要 |
<p>"ELECTROMECHANICAL MECHANISM FOR CONTROLLING FRACTIONAL WEIGHT LIFTING PLATES IN WORKOUT STATIONS", to be installed in a weight tower of the workout station, of the kind comprised by two vertical columns, joined at the top by a crossbeam and at the bottom by a base, on which there rests a stack of unit weights that can be vertically moved by a steel cable, sliding in vertical guides mounted between the crossbeam and the base; and this tower has at its top a pulley that deflects the steel cable coming from the lower part of the tower towards the center of the tower, where it is attached to the unit weights. A pulley (8), that deflects the steel cable, is mounted in the center of a shaft (11); this shaft (11) being kept suspended and parallel to the crossbeam (2) by a pair of bearings (13) attached to the crossbeam (2) of the tower; and on this shaft (11) there is mounted on either side of the pulley (8), a pulley (15) provided with a coupling (17) in the side section, housable in a coupling (18) of an adjacent disk (19), lengthwise and slidingly mounted on the shaft (11), conducted by a rod (20) which is propelled axially by the cursor (23) of a linear actuator (24); there being fastened to each pulley (15) a steel cable (16), which passes through the tower, by a deflection pulley (29), hanging vertically down inside a tube (30) attached to the crossbeam (2) and to the base (3) of the tower, the cylindrical fractional weight (31 or 32) being held at the end.</p> |
