| 摘要 |
PCT No. PCT/FI85/00004 Sec. 371 Date Sep. 3, 1985 Sec. 102(e) Date Sep. 3, 1985 PCT Filed Jan. 7, 1985 PCT Pub. No. WO85/03010 PCT Pub. Date Jul. 18, 1985.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.
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