会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明专利
    • SPEED COMMAND APPARATUS FOR ELEVATORS
    • JPS5470542A
    • 1979-06-06
    • JP11593178
    • 1978-09-22
    • HITACHI LTD
    • KAMEYAMA SHIROUMITSUI TSUNEOMAEDA YASUYUKITAI YOSHIFUSAKOMURO MASARU
    • B66B1/24B66B1/28B66B1/30H02P29/00
    • PURPOSE:To accomplish a smooth operation of AC elevators having a short floor operation without acceleration shock in the intermediate operation for short floors or the like in a speed command apparatus suitable for the AC elevator. CONSTITUTION:In a high speed operation for short floors, when an acceleration command Ec reaches a position P1 of starting the deceleration before arrived at a given intermediate speed E and at the point P1, the acceleration command Ec is switched to a deceleration command E, a deceleration command voltage E1 rises higher than the voltage E2. Therefore, a speed command voltage sharply rises from E3 to E2, which causes an acceleration shock. To solve the problem, in the travelling at an intermediate speed, after operation, a position detector P1 is connected to a deceleration command device PD. Then, with a command for operation at an intermediate operation, contacts 13a and 13c of a second switching device 13 are closed while a contact 13b is opened so that the speed command voltage reaches a rated voltage E2 at a time t3 with an acceleration device AP. When it reaches a posit ion P2, the device is separated and connected to the device PD.