发明名称 Collar for weightlifting bar
摘要 A quick-release collar is provided for securing weight plates to a weight bar in the sport of weight lifting. The collar includes a collar body defining an opening for receiving the weight bar, and defining a tangential ramp leading to the opening. A lock rod engages the ramp, and a tie rod extends through the collar to the lock rod. A handle threads onto the tie rod and, when rotated, tensions the tie rod, pulling the lock rod against the ramp into a securely wedged, interlocked engagement with the bar.
申请公布号 US2003045407(A1) 申请公布日期 2003.03.06
申请号 US20020153574 申请日期 2002.05.22
申请人 SCHIFF JON D. 发明人 SCHIFF JON D.
分类号 A63B21/072;A63B21/075;(IPC1-7):A63B21/072 主分类号 A63B21/072
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