发明名称 Punching bag and support means for supporting same in a door frame and the like to prevent twisting or turning of the support means
摘要 This invention relates to a combination comprising a punching bag and the means for supporting same which includes an adjustable horizontal support member supported between the vertical jambs of a door frame and the means for supporting the punching bag thereon and also includes another member secured at one end to the horizontal support member and provided at its other end with clamping means which are secured to the opposite ends of the door jamb to prevent the horizontal support member from twisting or turning due to the vibrations and movements of the punching bag during the punching action. The clamping means, which are secured to the vertical door jamb, are adjustable to accommodate door jambs of different widths.
申请公布号 US4050693(A) 申请公布日期 1977.09.27
申请号 US19760669097 申请日期 1976.03.22
申请人 MARTIN YALE INDUSTRIES, INC. 发明人 LICHTERMAN, NOAH
分类号 A63B21/16;A63B69/20;A63B69/22;(IPC1-7):A63B69/22 主分类号 A63B21/16
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