发明名称 SEWING MACHINE HAVING EQUILIBRIUM MASS
摘要 The needle bar drive of a counterbalanced sewing machine comprises, in addition to a counterbalance weight connected to the driving crank, a second counterbalance weight which is driven in opposition thereto through a drive mechanism. The drive mechanism comprises an intermediate shaft which rotates at a double speed relative to the armshaft and carries and drives a third counterbalance weight.
申请公布号 JPS60119986(A) 申请公布日期 1985.06.27
申请号 JP19840236876 申请日期 1984.11.12
申请人 PUFUAFU IND MASHIINEN GMBH 发明人 KURUTO KURUNTO
分类号 D05B55/14;D05B3/02;D05B69/32 主分类号 D05B55/14
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