发明名称 Beater bracket and variable drive lever system with variable pivot point spring rotor for bass drum foot pedals
摘要 Described is a bass drum foot pedal having a variable drive lever linkage with variable arc ratios connecting the foot pedal to a beater bracket. The beater bracket is formed with a mounting surface that tips a beater shaft forward to create a forward beater angle that maximizes the beater impact against a bass drum.
申请公布号 US8455746(B2) 申请公布日期 2013.06.04
申请号 US201113314790 申请日期 2011.12.08
申请人 JOHNSTON DARRELL;BLASHAW CHARLES;AXIS PERCUSSION, INC. 发明人 JOHNSTON DARRELL;BLASHAW CHARLES
分类号 G10D13/02 主分类号 G10D13/02
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