Patent ID: 8974350
Filing Date: 2015-03-10
Classification: A63B,F16B

Abstract:
1. A trampoline, comprising: a rebounding portion including a pad and a plurality of elastic members on the circumference of the pad; and a circular support rack which is connected to the elastic members to surround the rebounding portion and supported by a plurality of legs, and includes a vertical axis parallel to the legs and bisecting a profile of the circular support rack into an inner ring side facing the rebounding portion and an outer ring side opposite to the inner ring side, the circular support rack containing at least one first support tube and one second support tube, the first support tube including a first coupling end, a first jointing end and a first bent tube section between the first coupling end and the first jointing end, the second support tube including a second coupling end corresponding to the first jointing end, a second jointing end corresponding to the first coupling end and a second bent tube section between the second jointing end and the second coupling end, the first and second bent tube sections respectively including a first groove on the inner ring side and a second groove on the outer ring side to transfer stretching stress from the rebounding portion to the center of the first and second bent tube sections, the first coupling end and the second coupling end respectively including a first support section on the inner ring side, a second support section on the outer ring side, and at least one first ridge which is located on the vertical axis between the first support section and the second support section and formed by protruding towards a direction away from the legs to disperse stress from the plurality of elastic members to the first support section and the second support section equally.