Patent ID: 6926647
Filing Date: 2005-08-09
Classification: A63B

Abstract:
1. A folding collapsible rowing machine comprising: a base frame, said base frame comprising a front support, a rear support, and a main shaft horizontally supported between said front support and said rear support, said front support comprising a horizontal bottom bar and a vertical top bar perpendicularly upwardly extended from a middle part of the horizontal bottom bar and adapted to support one end of said main shaft horizontal bottom bar of said front support having two eyes protruded from the periphery thereof near two ends, said rear support comprising a horizontal bottom bar and a vertical top bar perpendicularly upwardly extended from a middle part of the horizontal bottom bar, the horizontal bottom bar of said rear support having two eyes protruded from the periphery thereof near two ends, the vertical top bar of said rear support having an opening, said main shaft comprising a barrel transversely located on a top side thereof, a transverse locating hole, a locating rod mounted in said transverse locating hole, and a plurality of front eyes symmetrically bilaterally provided at a front end thereof above said front support; a rocker coupled to said main shaft of said base frame, said rocker comprising a bottom fork, a transverse frame transversely suspended in said bottom fork and spaced below said main shaft of said base frame, two barrels aligned in said bottom fork and pivotally connected to two distal ends of the barrel of said main shaft by a pivot bolt, two foot bars respectively outwardly extended from two bottom ends of said bottom fork, and a handlebar provided at a top side of said bottom fork; a foot frame fixedly fastened to the vertical top bar of said front support, said foot frame comprising two footplates and two eyes symmetrically disposed at two sides; a sliding seat movable along said main shaft of said base frame, said sliding seat comprising a seat frame, a plurality of rollers symmetrically pivoted to said seat frame at two sides by respective pivots and rotatably supporting said seat frame on said main shaft of said base frame, a plurality of front eyes at a front side of said seat frame, a seat cushion at a top side of said seat frame for sitting, a back frame at a back side of said seat cushion, a back cushion supported on said back frame, a horizontal handlebar located on a bottom side of said back frame, two lugs at two sides of said seat frame, and a pivot fastened to the lugs of said sliding seat; a plurality of elastic cord members, said elastic cord members each having a front end respectively fastened to the eyes of said main shaft of said base frame and a rear end respectively fastened to the front eyes of said sliding seat; and a friction wheel block unit, said friction wheel block unit comprising a friction wheel block mounted in the opening of said rear support of said base frame and secured to the vertical top bar of said rear support by a screw bolt, a friction wheel mounted in said friction wheel block and turnable about the screw bolt in said friction wheel block, and a drag rope mounted on the periphery of said friction wheel, said drag rope having two distal ends respectively fastened to the pivot at the lugs of said sliding seat and the transverse frame of said rocker.