Adjustable springs for trampolines and the like

Details Adjustable springs for trampolines and the like Adjustable springs for trampolines and the like

F - Mech Eng,Light,Heat,Weapons

16

F

273/64

F16F 1/12 (2006.01) A63B 5/11 (2006.01)

Patent

CA 1083625

ABSTRACT The typical helical springs used to support the bed within the frame of a trampoline or the like are modified to incorporate adjustable hooks threadedly anchored within the springs at one end so that their overall length, and thus the tension on the bed, can be varied and overstretching accommodated. Two principal versions are disclosed, the more preferred one including an additional inner spring biasing the adjustable hook to a retracted position.

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