| 摘要 |
A gym set having boltless joining members wherein one member interlocks into the other through gravity friction. This frame construction has plays that are connected to the top horizontal bar of the frame structure, the top bar of the structure having a minimum number of holes for receiving plays, thus allowing for a lighter gauge tubing while at the same time providing a stronger member. The end of one member of the structure having tapered, reinforced ends for insertion within a complementary opening in another member to provide tightening at the interlocked joint of the two members while in use. The top bar having reinforced members extending from its center to its ends, thus eliminating the need of an additional two legs for center support.
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