Trampoline having a two-stage folding function

Details Trampoline having a two-stage folding function Trampoline having a two-stage folding function

2010-05-31

2011-11-01

Donnelly, Jerome W (Department: 3764)

Exercise devices

Gymnastic

Projector

C482S028000, C482S035000

Reexamination Certificate

active

08047967

ABSTRACT:
A trampoline includes a support frame, two pivot mechanisms mounted on the support frame, a bed surrounded by the support frame and a plurality of elastic members biased between the support frame and the bed. The support frame includes a first side rail, a second side rail, a third side rail and a fourth side rail. Thus, the first side rail and the second side rail are moved to abut the third side rail and the fourth side rail to fold the support frame at a first stage, while the first side rail and the fourth side rail are moved toward the second side rail and the third side rail by pivoting the pivot mechanisms to fold the support frame at a second stage so that the support frame is folded in a two-stage manner to reduce the volume of the trampoline largely.

REFERENCES:
patent: 5211498 (1993-05-01), Huang
patent: 5685660 (1997-11-01), Liao
patent: 5730542 (1998-03-01), Cheng
patent: 6648799 (2003-11-01), Hall
patent: 7468020 (2008-12-01), Lai

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