Claims
- 1. An exercise device comprising a base frame; a support platform for supporting a person exercising; a pivoting linkage connecting the base frame to the support platform; and a lift bar pivotally mounted to the base and movably engaging the support platform, said lift bar being movable at an end opposite from its pivotal mounting to pivot and to lift the support platform as guided by the pivoting linkage; wherein said guide comprises a pivoting linkage pivotally connected to the base frame and support platform.
- 2. The exerciser device of claim 1, wherein said pivoting linkage comprises at least two links that are positioned beneath the support platform and spaced in a fore and aft direction and extend to the base frame, such that the support platform is above the connection of the links to the base frame in a raised position.
- 3. The exercise device of claim 1, wherein said support platform is bifurcated, to form a slot open at a forward edge thereof, and wherein the slot has an inner edge portion forming a surface generally parallel to the axis of pivoting of the lift bar, a roller mounted on the support platform adjacent said inner edge portion, said lift bar engaging said roller as the lift bar is pivoted upwardly to raise the support platform.
- 4. The exercise device of claim 1, wherein the pivot of the lift bar is adjustable in a fore and aft direction relative to the base frame.
- 5. The exercise device of claim 1, wherein said lift bar has a pair of extension straps extending from a forward end thereof, said extension straps having hand grips thereon for a user of the exercise device.
- 6. The exercise device of claim 5, wherein said straps are adjustably mounted on an outer end of the lift bar.
- 7. The exercise device of claim 1 and stop blocks on a bottom surface of said support platform to engage a support surface supporting the base frame and stop the movement of the support platform toward the support surface at a desired position.
- 8. The exercise device of claim 1, wherein said base frame has spaced apart side members, and said lift bar is pivotally mounted between said side members.
- 9. The exercise device of claim 8, wherein said lift bar is pivotally mounted onto a tongue extending between said base frame side members from a rear portion thereof forwardly, and the pivot of the lift bar being adjustable in a longitudinal direction of the tongue.
- 10. The exercise device of claim 9, wherein said tongue has a series of selectable adjustment openings for permitting adjustment of the pivot of the lift bar.
- 11. The exercise device of claim 9, wherein said lift bar is removably pivotally mounted to said tongue.
- 12. An exerciser in which the weight of the user provides a resistance to movement, comprising a base frame, a user support configured to support a user, a support linkage mounting the user support relative to the base frame, said support linkage guiding movement of the user support from a lowered position along a vertical and horizontal translating path to a raised position, a lift bar pivotally mounted relative to said base frame and operably connected to the user support at a location spaced from the pivotal mounting thereof whereby pivotal movement of said lift bar moves said user support as guided by said support linkage between the raised and lowered positions, and an outer end of said lift bar being configured to permit a user to stand on the user support pivotally move the lift bar; wherein said lift bar is operably connected to said user support by directly bearing on a portion of said user support and exerting loads tending to move said user support on said support linkage; and a roller rotatably mounted on said user support against which said lift bar directly bears, said roller rolling along the lift bar as the lift bar is pivotally moved by the user.
- 13. The exerciser of claim 12, wherein said lift bar is pivoted to said base frame about a pivot axis which is positioned adjacent one end of the base frame, said lift bar extending toward and overlying an opposite end of said base frame, and the roller engaging the lift bar in intermediate portions of said lift bar.
- 14. The exerciser of claim 12, wherein the support linkage is a pivoting four bar linkage.
- 15. The exerciser of claim 14, wherein the pivotal mounting of the lift bar is adjustable relative to pivot axes of the four bar linkage.
- 16. The exerciser of claim 12, wherein said user support overlies said lift bar in its lowered position, and wherein as the lift bar is pivoted to raise the user support, the roller moves closer to a generally vertical plane passing through the pivotal movement of the lift bar to the base frame.
- 17. An exerciser device that is self energizing by the weight of the user comprising a base frame, a user support, a guide assembly on the base frame configured to guide said user support for movement from a first position wherein the user support is adjacent the base frame to a second raised position wherein the user support is spaced above said base frame guide assembly guiding the user support on a combined upwardly and horizontally inclined path between the first and second position, and said user support overlying said guide assemblies in the first position, a lift bar pivotally mounted on said base frame and having a longitudinal axis that extends substantially midway between a first pair of guide members forming part of the guide assembly on a first side of the base frame and a second pair of guide members of the guide assembly on a second side of said base frame, said pivot of said lift bar being positioned such that when an end of the lift bar opposite from the pivot of the lift bar is raised, the lift bar engages a portion of the user support and causes the user support to be lifted from its lowered position as guided by the parallel links.
- 18. The exerciser of claim 16, wherein the guide assembly comprises a pivot linkage, the first and second guide members comprising pairs of parallel linkage pivotally mounted to the base and pivotally mounted to the user support frame.
CROSS REFERENCE TO RELATED PROVISIONAL APPLICATION
This application claims priority on provisional application Ser. No. 60/035,310, filed Jan. 13, 1997 for PORTABLE EXERCISE DEVICE.
US Referenced Citations (29)
Non-Patent Literature Citations (1)
Entry |
The Shelburne Company Catalog Winter/Holiday '83 cover page and page showing Exercise Home Gym, published 1983. |