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    • 2. 发明授权
    • Rotation indicating device
    • 旋转指示装置
    • US4692754A
    • 1987-09-08
    • US868956
    • 1986-05-30
    • Merardo P. EdejerRoger S. FordJohn J. JailorMichael J. Jens
    • Merardo P. EdejerRoger S. FordJohn J. JailorMichael J. Jens
    • A47L9/04A47L9/30H02K21/12G08B21/00
    • H02K21/12A47L9/04A47L9/30
    • A small self-contained unit is provided to indicate rotation of a machine element such as a brush in a domestic vacuum cleaner. The rotation indicating device may be mounted inside the nozzle of the vacuum cleaner so that through an aperture in the vacuum cleaner nozzle, an indicator lamp may be observed, and it will be illuminated upon rotation of the vacuum cleaner brush. The rotation indicating device includes a housing which carries the lamp in a fixed longitudinal position on the housing, which accommodates a wire coil within the housing and the coil cooperates with a rotating magnet on the rotating brush. All of the parts are fixed in longitudinal position so that when the indicating device is mounted in the vacuum cleaner, the wire coil is in position to cooperate with the magnet and the lamp is in position adjacent the vacuum cleaner nozzle aperture.
    • 提供了一个小的独立单元来指示诸如家用吸尘器中的刷子的机器元件的旋转。 旋转指示装置可以安装在真空吸尘器的喷嘴内部,使得可以观察到真空吸尘器喷嘴中的孔,可以观察到指示灯,并且在真空吸尘器刷旋转时将其照亮。 旋转指示装置包括壳体,其将灯在壳体上固定在纵向位置上,该壳体容纳线圈,并且线圈与旋转刷上的旋转磁体配合。 所有的部件都被固定在纵向位置,使得当指示装置安装在真空吸尘器中时,线圈就位于与磁体协调的位置,并且灯处于靠近真空吸尘器喷嘴孔的位置。