Claims
- 1. A jogging apparatus comprising
- an annular frame defining an opening,
- an elastomeric annular body bonded to said frame,
- a mat bonded to said elastomeric body and covering the opening in said frame such that the mat is yieldingly supported on said frame,
- said elastomeric body being hollow in cross section and comprises a top wall, a bottom wall and inner and outer side walls,
- said elastomeric body, in the unloaded and undeformed state, assumes a configuration such that the inner wall and outer wall extend upwardly and outwardly and, in the deformed state with the mat attached to the top wall, assumes a configuration such that the inner wall and outer wall are deflected radially inwardly such that they are generally vertical and the mat is stretched such that the elastomeric body is self-sustaining and having a configuration such that it is free to deflect in shear deformation radially inwardly upon downward movement of the mat, and
- means for supporting said frame in spaced relation to a supporting surface.
- 2. The jogging apparatus set forth in claim 1 wherein said frame has a long and short axis.
- 3. The jogging apparatus set forth in claim 2 wherein said frame is tubular.
- 4. The jogging apparatus set forth in claim 1 wherein said elastomeric body is made of a resilient material having a durometer of 40 to 60 on the A scale.
- 5. The jogging apparatus set forth in claim 1 wherein said elastomeric body includes an integral portion overlying and bonded to the portion of the mat bonded to the elastomeric body.
- 6. The jogging apparatus set forth in claim 1 wherein said elastomeric body includes an integral inwardly and upwardly extending peripheral lip that extends from the area of juncture of the top wall and outer side wall when the body is in the unstressed condition and is bonded to the top of said mat.
- 7. The jogging apparatus set forth in claim 6 wherein said elastomeric body includes an integral upstanding annular bead extending upwardly from the bottom between the inner and outer side walls.
- 8. The jogging apparatus set forth in claim 6 wherein said elastomeric body includes an integral lip extending downwardly from the area of juncture of the bottom wall and outer side wall and bonded to the outer surface of said frame.
- 9. The jogging apparatus set forth in claim 1 wherein said means for supporting said frame comprises a plurality of circumferentially spaced legs and means for pivoting said legs to said frame such that they may be folded from a ground engaging position wherein they extend outwardly and downwardly to a position wherein they lie substantially within the frame.
- 10. The jogging apparatus set forth in claim 9 wherein each said leg includes a first portion extending downwardly, a second portion extending radially outwardly and a third portion extending radially outwardly and downwardly when the leg is in operative position,
- and means on said frame for pivoting said first portion to said frame about a generally horizontal axis lying substantially in the plane of said frame such that when the leg is in operative position, the second portion of said leg contacts the underside of said frame and said leg is pivotable by swinging movement inwardly generally into the plane of the frame.
- 11. The jogging apparatus set forth in claim 10 wherein said means for pivoting each said leg to said frame comprises a bracket,
- said bracket being mounted on said frame and having portions extending radially inwardly to which said first portion of said each said leg is pivoted.
- 12. The jogging apparatus set forth in claim 11 including a layer of resilient material interposed between said bracket and said frame.
- 13. The jogging apparatus set forth in claim 12 wherein said leg is made of spring material.
- 14. The jogging apparatus set forth in claim 11 wherein said leg comprises a rod bent in a generally U shape to form two leg portions,
- said first portion of said leg comprising the spaced free ends of said rod,
- said second portion of said leg comprising the adjacent portions of said leg,
- and said third portion of said leg comprising the spaced leg portions which are joined to one another at the surface contacting portion of the leg,
- said free ends of said rod having portions thereof extending generally horizontally in the plane of said frame.
- 15. The jogging apparatus set forth in claim 14 wherein each said leg is made of spring material, one of said second portions being of different length than the other second portion and one of said third portions being of different length than the other third portion, said bracket having openings in said radially inwardly extending portions into which the free ends of each said leg extend, the axes of said openings being displaced radially inwardly relative to one another and lying in the same horizontal plane such that the free end portions must be stressed to bring them into a plane generally parallel to the plane of said mat when mounted on said bracket such that when the leg extends outwardly, the second portions thereof are urged against the bracket and when the leg is folded inwardly, the surface contacting portion is urged against the underside of the mat.
- 16. The jogging apparatus set forth in claim 11 wherein said bracket partially surrounds said frame,
- said radially inwardly extending portions of said brackets comprising ear portions on said frame.
- 17. The jogging apparatus set forth in claim 10 wherein said means for pivoting each said leg is such that when the leg extends outwardly the second portions thereof are urged against the bracket and when the leg is folded inwardly, the surface contacting portion is urged against the underside of the mat.
- 18. A jogging apparatus comprising
- an annular frame defining an opening having a rectangular tubular cross section,
- an elastomeric body bonded to the top surface of said frame throughout the circumferential extent thereof,
- a mat bonded to said elastomeric body and covering the opening in said frame such that the mat is yieldingly supported on said frame,
- said elastomeric body being stressed radially inwardly by said mat such that said elastomeric body is deflected in shear deformation and the mat is tightly stretched,
- said elastomeric body being hollow in cross section and comprises a top wall, a bottom wall and inner and outer side walls,
- said elastomeric body, in the unloaded and undeformed state, assumes a configuration such that the inner wall and outer wall extend upwardly and outwardly and, in the deformed state with the mat attached to the top wall, assumes a configuration such that the inner wall and outer wall are deflected radially inwardly such that they are generally vertical and the mat is stretched such that the elastomeric body is self-sustaining and having a configuration such that it is free to deflect in shear deformation radially inwardly upon downward movement of the mat, and
- means for supporting said frame in spaced relation to a supporting surface.
- 19. The jogging apparatus set forth in claim 18 wherein said frame has a long and short axis.
- 20. The jogging apparatus set forth in claim 18 wherein said elastomeric body is made of a resilient material having a durometer of 40 to 60 on the A scale.
- 21. The jogging apparatus set forth in claim 18 wherein said elastomeric body includes an integral portion overlying and bonded to the portion of the mat bonded to the elastomeric body.
- 22. The jogging apparatus set forth in claim 18 wherein said elastomeric body includes an inwardly and upwardly extending peripheral lip that extends from the area of juncture of the top wall and outer side wall.
- 23. The jogging apparatus set forth in claim 22 wherein said elastomeric body includes an integral upstanding annular bead extending upwardly from the bottom wall between the inner and outer walls.
- 24. The jogging apparatus comprising
- a frame,
- a mat,
- means for supporting said mat on said frame,
- a plurality of circumferentially spaced legs,
- each said leg including a first portion extending downwardly, a second portion extending radially outwardly and a third portion extending radially outwardly and downwardly when the leg is in operative position,
- and means on said frame for pivoting said first portion to said frame about a generally horizontal axis lying substantially in the plane of said frame such that when the leg is in operative position, the second portion of said leg contacts the underside of said frame and said leg is pivotable by swinging movement inwardly generally into the plane of the frame,
- said means for pivoting each said leg to said frame comprising a bracket,
- said bracket being mounted on said frame and having ear portions extending radially inwardly to which said first portion of said frame is pivoted,
- each said leg comprising a rod bent in a generally U shape to form two leg portions,
- said first portion of said leg comprising the spaced free ends of said rod,
- said second portion of said leg comprising the adjacent portions of said leg,
- and said third portion of said leg comprising the spaced leg portions which are joined to one another at the surface contacting portions of the leg,
- said free ends of said rod having portions thereof extending generally horizontally in the plane of said frame,
- each said leg is made of spring material, one of said second portions being of different length than the other second portion and one of said third portions being of different length than the other third portion, said bracket having openings in said radially inwardly extending portions into which the free ends of each said leg extend, the axes of said openings being displaced radially inwardly relative to one another and lying in the same horizontal plane such that the free end portions must be stressed to bring them into a plane generally parallel to the plane of said mat when mounted on said bracket such that when the leg extends outwardly, the second portions thereof are urged against the bracket and when the leg is folded inwardly, the surface contacting portion is urged against the underside of the mat,
- said means for pivoting each said leg is such that when the leg extends outwardly, the second portions thereof are urged against the bracket and when the leg is folded inwardly, the surface contacting portion is urged against the underside of the mat.
Parent Case Info
This application is a continuation of application Ser. No. 304,804, filed Sept. 23, 1981, and now abandoned.
US Referenced Citations (12)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1099001 |
Mar 1955 |
FRX |
281555 |
Dec 1964 |
NLX |
Non-Patent Literature Citations (1)
Entry |
"Mini-Tramp", Trampolines by Nissen, 1976 Catalog, p. 11. |
Continuations (1)
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Number |
Date |
Country |
Parent |
304804 |
Sep 1981 |
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