发明授权
- 专利标题: Controlling apparatus for electric sewing machine
- 专利标题(中): 电动缝纫机控制装置
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申请号: US866835申请日: 1978-01-04
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公开(公告)号: US4173193A公开(公告)日: 1979-11-06
- 发明人: Shigeki Morinaga , Takeo Maeda , Tadashi Takahashi , Kosho Ishizaki
- 申请人: Shigeki Morinaga , Takeo Maeda , Tadashi Takahashi , Kosho Ishizaki
- 申请人地址: JPX
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX
- 优先权: JPX52-2405 19770114
- 主分类号: D05B55/14
- IPC分类号: D05B55/14 ; D05B65/02 ; D05B69/26 ; G05B19/042 ; H02P3/04 ; D05B19/00
摘要:
An apparatus for controlling an electric sewing machine has a mechanism for transmitting the driving torque of a motor to the sewing machine to drive the same, a mechanism for imparting braking power to the sewing machine to stop the same, a mechanism for stopping the needle of said sewing machine at desired positions in its stroke and controlling means adapted to control these mechanisms. At least a part of the controlling means is constituted by a microcomputer. The signal input to the microcomputer is provided in synchronization with a synchronizing clock signal, and only such input signals as required in respective periods of operation are checked in each of the periods, so that the checking of the input signals is facilitated and accidents due to erroneous operation are avoided.