Patent ID: 6749544
Filing Date: 2004-06-15
Classification: A63B

Abstract:
A resistance adjustment device for an exercise apparatus, the exercise apparatus including a front support frame having two fixed upright rods, a rear support frame, a handle assembly mounted on the front support frame, a flywheel mounted rotatably between the upright rods of the front support frame, a seat assembly mounted on the rear support frame, and a pedal unit for actuating rotation of the flywheel, said resistance adjustment device comprising:first and second swing arms adapted to be connected pivotally and respectively to the upright rods of the front support frame and adapted to flank the flywheel, said first and second swing arms being rotatable toward and away from the flywheel; two biasing units, each of which is adapted to be disposed between a respective one of the upright rods and a respective one of said first and second swing arms so as to bias said first and second swing arms to rotate away from the flywheel; two brake devices connected respectively to said first and second swing arms and located on two sides of the flywheel; a first adjustment unit having an adjustment knob adapted to be mounted rotatably on the front support frame, a tubular first guiding member connected fixedly to said first swing arm, a first fixing member connected fixedly to said second swing arm, and a first cable fastened to said adjustment knob at one end and to said first fixing member at another end, said first cable having an intermediate portion extending through said first guiding member; and a second adjustment unit including a brake lever adapted to be mounted operably on the handle assembly, a tubular second guiding member connected fixedly to said second swing arm, a second fixing member connected fixedly to said first swing arm, and a second cable fastened to said brake lever at one end and to said second fixing member at another end, said second cable having an intermediate portion extending through said second guiding member; wherein when said adjustment knob is operated, said first cable can be loosened and pulled so that said first and second swing arms can move said brake devices away from and toward the flywheel, thereby adjusting magnitude of resistance to rotation of the flywheel; and wherein when said brake lever is operated, said second cable can be swiftly pulled so that said first and second swing arms can move said brake devices toward the flywheel so as to clamp the flywheel to effect an instant brake.