发明名称 Sewing machine
摘要 A sewing machine including a needle bar that has a sewing needle attached in a lower end thereof; a needle-bar vertical drive mechanism that vertically moves the needle bar by a sewing machine motor via a sewing machine motor main shaft; an imaging unit that captures image of at least the sewing needle and a moving object that is in close proximity of the sewing needle; a distance calculating portion that calculates a distance between the sewing needle and the moving object based on image data captured by the imaging unit; a judging portion that makes a judgment that the distance calculated by the distance calculating portion is equal to or less than a predetermined distance; and a control portion that controls execution of a predetermined safety operation based on a judgment result of the judging portion.
申请公布号 US2007227423(A1) 申请公布日期 2007.10.04
申请号 US20070723926 申请日期 2007.03.22
申请人 BROTHER KOGYO KABUSHIKI KAISHA 发明人 NOGUCHI CHIKAHISA;HANAI TOSHIHIRO;HAMAJIMA EIICHI;NISHIMURA YOSHIO;ITO EIICHI
分类号 D05B69/00 主分类号 D05B69/00
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