초록 ▼

A rowing exercise device in which the return force for the rowing handle is provided by the force of gravity rather than an elastic cable. The rowing exercise device includes a stationary base and a moveable frame, which rotates or slides upwardly relative to the stationary base when a pulling force

A rowing exercise device in which the return force for the rowing handle is provided by the force of gravity rather than an elastic cable. The rowing exercise device includes a stationary base and a moveable frame, which rotates or slides upwardly relative to the stationary base when a pulling force is applied to the handle, and then rotates or slides back down to the initial position under the force of gravity when the pulling force is removed.

대표청구항 ▼

1. A rowing exercise device comprising: a base comprising a raised front end extending upwardly from a lower horizontal rear end;a moveable frame mounted on the base, the moveable frame including: footrests for receiving a user's feet;a user-supporting seat slideable relative to the base and the foo

1. A rowing exercise device comprising: a base comprising a raised front end extending upwardly from a lower horizontal rear end;a moveable frame mounted on the base, the moveable frame including: footrests for receiving a user's feet;a user-supporting seat slideable relative to the base and the footrests;an upwardly sloped front end slideable on the front end of the base, whereby the front end of the moveable frame moves upwardly relative to the base; anda rear section, horizontal in a rest position, for moving relative to the horizontal rear end of the base;a rotational inertia device for providing resistance to the user during use rotatable about a first shaft;a handle for grasping by the user connected on an end of a cable, wherein the cable engages the first shaft, for rotating the rotational inertia device upon application of a first rearwardly directed force by the user on the handle and a simultaneous application of a second forwardly directed force by the user on the footrests, wherein the handle and the cable are moveable away from the front end of the base between a retracted rest position and an extended use position upon application of the first and second forces by the user, thereby simulating rowing; anda force transfer assembly connected on another end of the cable for transferring the first force applied to the handle;wherein the force transfer assembly is connected to the moveable frame, whereby pulling on the handle forces the front end of the moveable frame to slide upwardly relative to the base on the raised front end of the base, while the rear section of the moveable frame remains in contact with the horizontal rear end of the base; andwherein release of the first force on the handle results in the front end of the moveable frame to slide back down relative to the base under the force of gravity resulting in the force transfer assembly returning the cable to the retracted rest position. 2. The device according to claim 1, wherein the force transfer assembly comprises a reel for receiving the cable, fixed on a second shaft rotatable on the base or the moveable frame. 3. The device according to claim 2, wherein the force transfer assembly further comprises a belt drum fixed on the second shaft; a belt extending between the belt drum and the moveable frame, whereby rotation of the reel by the cable results in rotation of the belt drum and wrapping of the belt around the belt drum, which pulls the moveable frame forward sliding the moveable frame upwardly on the raised front end of the base. 4. The device according to claim 3, wherein the force transfer assembly further comprises circular gears on the second shaft, and a rack gear on the underside of the upwardly sloped front end of the moveable frame, whereby rotation of the reel by the cable results in rotation of the circular gears into engagement with the rack gear, which pulls the moveable frame forward sliding the moveable frame upwardly on the raised front end of the base. 5. The device according to claim 2, wherein the reel comprises a chain drum, and the cable comprises a chain; wherein an end of the chain is fixed to the chain drum; andwherein the chain drum has a width, whereby the chain wraps upon itself with increasing diameter when in the retracted rest position. 6. The device according to claim 2, wherein the reel comprises a chain drum, and the cable comprises a chain; wherein an end of the chain is fixed to the chain drum; andwherein the chain drum has a width, whereby the chain wraps spirally around the chain drum with a constant diameter when in the retracted rest position. 7. The device according to claim 2, wherein the reel comprises a sprocket, and the cable comprises a chain; wherein an end of the chain is fixed on an inside of a canister; andwhereby the chain wraps around the sprocket and into the canister, when in the retracted rest position. 8. The device according to claim 1, wherein the base comprises a stationary support, and a sliding carriage slideable on the stationary support; and wherein the sliding carriage includes the raised front end of the base for supporting the front end of the moveable frame. 9. The device according to claim 8, further comprising a sloped surface on the rear end of the moveable frame, whereby the rear end of the moveable frame moves upwardly relative to the sliding carriage when the first force is applied via the handle. 10. The device according to claim 9, wherein the sloped surface is at a first acute angle to the horizontal, and wherein the sloped surface is pivotable relative to the moveable frame, whereby the first acute angle is adjustable. 11. The device according to claim 8, wherein the sliding carriage includes wheels at the front end and the rear end thereof for sliding on the stationary support; and wherein the moveable frame includes wheels at the rear end thereof for sliding on the sliding carriage or the stationary support. 12. The device according to claim 8, wherein the sliding carriage includes wheels at the front and rear ends; and wherein the stationary support includes left and right tracks for receiving the wheels with a slight upward rise adjacent to the front and rear ends thereof to gradually slow forward and rearward movement of the sliding carriage and the moveable frame. 13. The device according to claim 1, wherein a rear end of the moveable frame is slideable on the base enabling the moveable frame to move along the horizontal rear end of the base towards and away from the front of the base. 14. The device according to claim 13, further comprising a sloped surface on the rear end of the moveable frame, whereby the rear end of the moveable frame moves upwardly relative to the base when the first force is applied via the handle. 15. The device according to claim 14, wherein the sloped surface is at a first acute angle to the horizontal, and wherein the sloped surface is pivotable relative to the moveable frame, whereby the first acute angle is adjustable. 16. The device according to claim 13, wherein the rear end of the moveable frame includes a first set of wheels for engaging the base; and wherein the front end of the base includes a second set of wheels for engaging an underside of the upwardly sloped front end of the moveable frame.