发明名称 Folding ball trolley having minimized volume
摘要 A folding ball trolley having a minimized volume has a frame, a bag and multiple resilient elements. The frame has four stand rods, four top seats, four sliding seats, four wheels, four connecting rod assemblies and four mounting rods. The bag connects to the mounting rods, and the mounting rods pivotally connect to the stand rods. Accordingly, the mounting rods can be rotated relative to the stand rods, such that the mounting rods do not protrude upward to occupy too much space when the ball trolley is folded. Besides, the frame is braced by the resilient elements so a user does not have to stretch his hands between the rods when folding the ball trolley, thereby preventing the hands from being clamped.
申请公布号 US9168938(B2) 申请公布日期 2015.10.27
申请号 US201313888453 申请日期 2013.05.07
申请人 发明人 Wang Chia-Ling
分类号 B62B3/02;A63B47/00;B62B3/10 主分类号 B62B3/02
代理机构 Kamrath IP Lawfirm, P.A. 代理人 Kamrath Alan D.;Kamrath IP Lawfirm, P.A.
主权项 1. A folding ball trolley having minimized volume, comprising: a frame having: four stand rods arranged in a rectangle;four top seats respectively mounted on top ends of the four stand rods;four sliding seats respectively mounted movably on the four stand rods;four wheels respectively mounted on bottom ends of the four stand rods;four connecting rod assemblies, each connecting rod assembly mounted between two adjacent stand rods; andfour mounting rods respectively and pivotally connecting to the four top seats, with each mounting rod pivotal between a folded position intermediate a corresponding top seat and a corresponding wheel and an expanded position extending at an obtuse angle relative to the corresponding stand rod and outward of the frame; a bag mounted on the frame, connecting to the four mounting rods and having a room and an opening; and multiple resilient elements mounted on the frame and bracing the frame.
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