Vacuum cleaner and gravity compensation apparatus therefor

    公开(公告)号:US10405720B2

    公开(公告)日:2019-09-10

    申请号:US15302416

    申请日:2015-03-27

    Abstract: In accordance with one aspect of the present invention, a cleaner includes a gravity compensation apparatus for applying compensation force to a handle unit, the gravity compensation apparatus having an elastic member connected to one side of the handle unit to generate compensation force and a sliding member for making translational movement in conjunction with turning motion of the handle unit to keep the compensation force in a constant direction regardless of an angle of the handle unit. The torque due to gravity applied to a handle unit of a vacuum cleaner may be precisely compensated, thereby relieving the burden of the user from the weight of the handle unit while the user holds the handle unit for cleaning.

    ROBOT CLEANER
    33.
    发明申请
    ROBOT CLEANER 审中-公开

    公开(公告)号:US20190075986A1

    公开(公告)日:2019-03-14

    申请号:US16157881

    申请日:2018-10-11

    Abstract: A robot cleaner including: a main body, a driving unit configured to move the main body, and a suction device provided in the main body and configured to suction outside foreign substances, and the suction device may include a first suction member having a suction port provided at a bottom surface of the main body and configured to suction the foreign substances, and at least one second suction member formed to move relative to the first suction member and having a suction port configured to suction the foreign substances.

    Vacuum cleaner
    37.
    发明授权

    公开(公告)号:US10765288B2

    公开(公告)日:2020-09-08

    申请号:US15913560

    申请日:2018-03-06

    Abstract: Disclosed herein are a vacuum cleaner including: a base including a suction opening; a main frame including a dust collecting apparatus configured to remove dust from air sucked through the suction opening; and a wheel assembly including a forward wheel and a reverse wheel, and rotatably coupled with the base, wherein when the main frame slides with respect to the base, any one of the forward wheel and the reverse wheel contacts a floor. Therefore, the vacuum cleaner may understand a user's intention without adding a senor and a control circuit, and travel actively according to the user's intention.

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