Invention Grant
- Patent Title: Vacuum cleaner
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Application No.: US15747166Application Date: 2016-08-23
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Publication No.: US10531778B2Publication Date: 2020-01-14
- Inventor: Hyungkyu Youk , Sangjo Kim
- Applicant: LG Electronics Inc.
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Fish & Richardson P.C.
- Priority: KR10-2015-0119138 20150824
- International Application: PCT/KR2016/009280 WO 20160823
- International Announcement: WO2017/034286 WO 20170302
- Main IPC: A47L9/28
- IPC: A47L9/28 ; A47L5/36 ; A47L9/00

Abstract:
A vacuum cleaner includes a cleaner body; a suction unit connected with the cleaner body, sucking dust and air, guiding the sucked dust and air to the cleaner body, and having a handle; a moving unit including a wheel and a motor for driving the wheel to automatically move the cleaner body; and a clutch unit connecting the motor and the wheel or releasing the connection of the motor and the wheel according to an operational state of the cleaner body. The clutch unit includes a sun gear connected with the motor, a ring gear connected with the wheel, a plurality of fixed planetary gears disposed to be spaced apart each other between the sun gear and the ring gear, and a moving planetary gear which may transmit a rotational force transmitted to the sun gear to one gear of the plurality of fixed planetary gears.
Public/Granted literature
- US20180213991A1 VACUUM CLEANER Public/Granted day:2018-08-02
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