초록 ▼

A treadmill device includes a frame, and two independent side-by-side treadmills each having a continuous tread and first and second ends. The device further includes link members for supporting the first and second end of the treadmills above the frame. Each of the link members has a first end pivo

A treadmill device includes a frame, and two independent side-by-side treadmills each having a continuous tread and first and second ends. The device further includes link members for supporting the first and second end of the treadmills above the frame. Each of the link members has a first end pivotably connected to the frame and a second end pivotably connected to the respective treadmill adjacent the respective end thereof. The device still further includes first and second spring-return hydraulic cylinder assemblies for independently supporting the respective treadmills in a first elevated position above the frame, and for independently resisting downward movement of the treadmills from the first position to a second position. The treads may be driven by a mechanical drive mechanism actuated by downward movement of the treadmills, or may be motor driven in a conventional manner by a common electric motor. In use, the operator walks upon the treadmills in a normal manner wherein the treadmills alternately move from the first position to the second position as the operator places weight on the respective treadmill, with the spring return hydraulic cylinder assemblies being operable for returning the treadmills from the second position to the first position when the operator\s weight is removed from the treadmill.

대표청구항 ▼

Treadmill apparatus comprising: first and second adjacent treadmills each having a continuous tread, and first and second ends, each of said treadmills including a rigid platform and rollers at each of said first and second ends for rotatably supporting said continuous tread on said rigid platform;

Treadmill apparatus comprising: first and second adjacent treadmills each having a continuous tread, and first and second ends, each of said treadmills including a rigid platform and rollers at each of said first and second ends for rotatably supporting said continuous tread on said rigid platform; a frame positionable on a supporting surface; first and second link means for respectively independently supporting the first and second ends of each of said first and second treadmills above said frame, each of said first and second link means having a first end pivotally connected to the frame and a second end pivotally connected to the rigid platform of each respective treadmill adjacent said respective end thereof; first and second means for resiliently supporting the respective first and second treadmills in a first position above a supporting surface; first and second resistance means for resisting downward movement of said first and second treadmills from said first position to a second position as weight is placed upon said treadmills, said first and second resilient supporting means returning said first and second treadmills from said second position to said first position when said weight is removed from said first and second treadmills, said first and second treadmills alternately moving up and down as an operator treads thereon; and drive means for respectively independently driving rotation of said continuous treads as said first and second treadmills are alternately reciprocated downward and upward during use.