Spring structure intended specifically for play or exercise apparatus
AssigneePohjoiskalotti Oy
InventorAntero Ikaheimo
Life of this patent
Estimating the term…
Abstract
A spring structure, which is intended specifically for play or conditioning exercise apparatus, comprises on the one hand a helical spring (1) made from flat steel or similar material, the spring having about 1.5-2 turns, and on the other hand a brace (2) fastened to the inner end (1a) of the spring, the brace being U-shaped in the middle in such a way that its arms extend to both sides of the helical spring (1), leaving the spring free, and is in other respects shaped in such a way that the structure can be fastened by the brace to a base such as the floor or the ceiling. To the free end (1b) of the spring it is possible alternatively to fasten different apparatus, for example, a rocking horse (4), a seesaw, an exercise bar, etc.
Claims5
A spring structure intended particularly for a play and exercise apparatus, comprising:
- a helical spring member made of flat steel material with sides, a predetermined width and turns, said helical spring member having an inner end and an outer end, said outer end being adapted for attachment to a movable member;
- a brace member also made of flat steel material and having an essentially U-shaped middle portion, said U-shaped middle portion including arm portions and a substantially horizontal web portion centrally disposed within said U-shaped middle portion and having a predetermined length;
- said inner end of said helical spring member being secured to and across said web portion wherein the predetermined length of the web portion is greater than the predetermined width of said helical spring member;
- said arm portions of the brace member extending along the sides of the helical spring in a general direction away from said outer end and beyond an outermost turn of the spring member;
- a fastening base, said fastening base being substantially horizontally positioned and said inner and outer ends of said helical spring being substantially horizontal with said inner end being affixed to said web portion and said outer end being disposed adjacent to said inner end and spaced apart by turns of said helical spring with said outer end being affixed to said movable member;
- and
- outer ends of said arm portions being bent outwardly in a substantially horizontal position, said outer ends lie essentially in the same plane, said outer ends are fastened to said fastening base for supporting the spring structure.
Dependencies are inferred from the claim text.