发明名称 Trampoline court with pulldown springs
摘要 A trampoline has an upper frame having a first upper frame member and a second upper frame member. The trampoline bed is held in tension between and extended between the first upper frame member and the second upper frame member. The first upper frame member is a different height than the second upper frame member. Trampoline bed springs connect between the upper frame and the trampoline bed. A pulldown spring is mounted between the trampoline bed and a lower frame. The pulldown spring is held in tension at a trampoline bed reinforcement panel. The pulldown spring biases the trampoline bed reinforcement panel toward the lower frame. A folding angle is formed on the trampoline bed.
申请公布号 US9446274(B1) 申请公布日期 2016.09.20
申请号 US201514690627 申请日期 2015.04.20
申请人 Chen Samuel 发明人 Chen Samuel
分类号 A63B5/11 主分类号 A63B5/11
代理机构 代理人 Cheng Clement
主权项 1. A trampoline comprising: a. an upper frame having a first upper frame member and a second upper frame member; b. a trampoline bed held in tension between and extended between the first upper frame member and the second upper frame member, wherein the first upper frame member is a different height than the second upper frame member; c. trampoline bed springs connecting between the upper frame and the trampoline bed; d. a pulldown spring mounted between the trampoline bed and a lower frame, wherein the pulldown spring is held in tension at a trampoline bed reinforcement panel, wherein the pulldown spring biases the trampoline bed reinforcement panel toward the lower frame; and e. a folding angle formed on the trampoline bed, wherein the folding angle separates the trampoline bed between a first trampoline bed area and a second trampoline bed area, wherein the folding angle is obtuse and is measured as the angle between the first trampoline bed area and the second trampoline bed area; f. a pulldown spring connector connecting the pulldown spring to a pulldown flap, wherein the pulldown spring connector is formed as a loop having a narrow end and a wide end, wherein the narrow end is connected to the pulldown spring and wherein the wide end is connected to the pulldown flap.
地址 Shanghai CN