作者: Ronald Harmon Jacques
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摘要: A punching bag useful in training fighters developing an effective uppercut includes a vertical member for attachment to the wall having disposed rotatably thereon horizontal bar containing on its end padded arm terminating rounded portion which simulates chin of fighter. The is limited downward travel by hard rubber stop and biased position heavy tension spring but free rotate upward against allowing fighter practice uppercuts thereof develop necessary muscles required such punch.