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公开(公告)号:US4328522A
公开(公告)日:1982-05-04
申请号:US135255
申请日:1980-03-31
申请人: Fredrick W. Tryan
发明人: Fredrick W. Tryan
CPC分类号: A47L9/2889 , A47L9/2805 , A47L9/2847 , A47L9/2857 , H02H7/093 , Y02B40/82
摘要: This is concerned with a sensing control for a vacuum cleaner to sense the speed of the beater brush so that when it becomes clogged or jammed and tends to slow down, the control will automatically disconnect all power from the drive motor to thereby protect both the motor and any drive belts that are used. Some aspects are usable with either a canister or an upright vacuum cleaner and some are specifically concerned with an upright unit.
摘要翻译: 这涉及用于真空吸尘器的感测控制,以感测打浆刷的速度,使得当它被堵塞或卡住并且趋于减速时,该控制将自动地断开所有来自驱动电机的电力,从而保护电动机 和任何使用的传动皮带。 一些方面可用于罐或立式吸尘器,一些方面特别涉及直立单元。