Patent ID: 8047967
Filing Date: 2011-11-01
Classification: A63B

Abstract:
1. A trampoline, comprising: a support frame; two opposite pivot mechanisms mounted on the support frame; a bed disposed in and surrounded by the support frame; and a plurality of elastic members biased between the support frame and the bed; wherein the support frame includes a first side rail, a second side rail, a third side rail and a fourth side rail; the first side rail of the support frame has a first end provided with a first pivot portion and a second end provided with a first pivot section; the second side rail of the support frame has a first end provided with a second pivot portion and a second end provided with a second pivot section; the third side rail of the support frame has a first end provided with a third pivot portion and a second end provided with a third pivot section; the fourth side rail of the support frame has a first end provided with a fourth pivot portion and a second end provided with a fourth pivot section; the first pivot portion of the first side rail is pivotally connected with the fourth pivot portion of the fourth side rail, and the second pivot portion of the second side rail is pivotally connected with the third pivot portion of the third side rail; the first pivot portion of the first side rail and the fourth pivot portion of the fourth side rail are pivotable about a first axis that is parallel with the support frame; the second pivot portion of the second side rail and the third pivot portion of the third side rail are pivotable about the first axis that is parallel with the support frame; the first pivot section of the first side rail is pivotally connected with the second pivot section of the second side rail by a first one of the pivot mechanisms, and the third pivot section of the third side rail is pivotally connected with the fourth pivot section of the fourth side rail by a second one of the pivot mechanisms; the first pivot section of the first side rail and the second pivot section of the second side rail are pivotable about a second axis that is perpendicular to the support frame; the third pivot section of the third side rail and the fourth pivot section of the fourth side rail are pivotable about the second axis that is perpendicular to the support frame; each of the pivot mechanisms includes two pivot blocks pivotally connected with each other and a protective pad mounted between the two pivot blocks; each of the pivot blocks of each of the pivot mechanisms has a first end and a second end; the first end of a first one of the pivot blocks is secured on the first pivot section of the first side rail or the third pivot section of the third side rail, and the first end of a second one of the pivot blocks is secured on the second pivot section of the second side rail or the fourth pivot section of the fourth side rail; the first end of each of the pivot blocks has a surface formed with a plurality of through holes to fix a plurality of fixing pins which extends through the first pivot section of the first side rail, the third pivot section of the third side rail, the second pivot section of the second side rail and the fourth pivot section of the fourth side rail; the pivot blocks of the pivot mechanisms are fixed on the first pivot section of the first side rail, the second pivot section of the second side rail, the third pivot section of the third side rail and the fourth pivot section of the fourth side rail by the fixing pins; the second ends of the pivot blocks of each of the pivot mechanisms are pivotally connected with each other by a pivot pin which extends through the protective pad; the pivot pin of each of the pivot mechanisms is directed along the second axis that is perpendicular to the support frame; the pivot blocks of each of the pivot mechanisms are pivotable about the second axis that is perpendicular to the support frame; the protective pad of each of the pivot mechanisms is disposed between the second ends of the pivot blocks and is secured on the pivot pin.