公开(公告)号：US20230145580A1

公开(公告)日：2023-05-11

申请号：US17913122

申请日：2020-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Woo HONG ,  Sangik LEE

IPC: A47L9/28 ,  A47L9/00 ,  A47L11/28 ,  A47L11/40 ,  G05D1/02

CPC classification number: A47L9/2826 ,  A47L9/009 ,  A47L9/2852 ,  A47L11/28 ,  A47L11/4011 ,  A47L11/4061 ,  G05D1/0238 ,  A47L2201/04 ,  G05D2201/0215 ,  G05D2201/0203

Abstract: A robot cleaner having a shielding module provided under a cleaner body is provided. The shielding module includes a cam and a hiding plate which rotate with the same phase angle about a same rotating shaft. The distance between the center of the hiding plate and the center of the rotating shaft is longer than the distance between a contact point on a cam surface of the cam and the center of the rotating shaft. A guide protrusion of a bumper is in contact with the cam surface at the contact point. Therefore, the rotation movement speed of the hiding plate which rotates to hide a cliff sensor is much faster than the inner movement speed of the bumper, thereby improving sensitivity to the detection of a collision between the bumper and an obstacle by using the cliff sensor.

公开(公告)号：US20220354325A1

公开(公告)日：2022-11-10

申请号：US17627277

申请日：2020-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Woo HONG ,  Sangik LEE ,  Jongho PARK

IPC: A47L9/04 ,  A47L9/06

Abstract: The present invention relates to a robotic cleaner comprising: a cleaner body which has a plurality of guide holders provided therein and performs self-driving; and a suction nozzle which receives an agitator therein, has guide protrusions longitudinally protruding from both sidewalls thereof toward the plurality of guide holders and received in the plurality of guide holders, respectively, and is up-and-down movably and back-and-forth swingably mounted to the cleaner body, whereby the driving performance and cleaning performance of the cleaner can be improved.

公开(公告)号：US20220265102A1

公开(公告)日：2022-08-25

申请号：US17638602

申请日：2020-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Jongho PARK ,  Sangik LEE ,  Woo HONG

IPC: A47L9/04 ,  A47L9/28 ,  A46B9/02 ,  A46B13/00 ,  A46B13/02

Abstract: The present invention provides a cleaning unit, comprising: a columnar body part having a rotation guide opening formed on the outer circumferential surface thereof; a shaft installed to reciprocate a predetermined distance in the longitudinal direction thereof in a hollow formed in the body part; a drive part that protrudes from the shaft in the radial direction thereof; a brush part that has one side installed on the outer circumferential surface of the body part along the longitudinal direction thereof and rotates on the basis of the one side as a rotation axis; and a driven part that extends from the brush part toward the drive part, passes through the rotation guide opening, and is inserted into a rotation guide groove formed in the drive part. The rotation guide groove extends at a predetermined angle with respect to the longitudinal direction of the shaft, and as the shaft reciprocates, the driven part is guided to rotate by means of the rotation guide groove, and the brush is rotated by means of the rotation of the driven part. The cleaning unit may include a robot cleaner or a cleaner operated by means of a user's operation.

公开(公告)号：US20190307064A1

公开(公告)日：2019-10-10

申请号：US16375294

申请日：2019-04-04

Applicant: LG ELECTRONICS INC.

Inventor： Woo HONG ,  Siyong KIM ,  Hanshin KIM ,  Hyunsup SONG ,  Kyeongho CHO ,  Jaehun HAN ,  Jiwoo HA

IPC: A01D34/81 ,  A01D34/00 ,  A01D34/64

Abstract: A lawn mower robot includes an outer cover; an inner body accommodated into the outer cover to mount a plurality of wheels on sides thereof; a plurality of blades rotatably mounted on a bottom surface of the inner body to mow grass; a plurality of support portions arranged in front-rear and left-right directions on an upper portion of the inner body to movably support the outer cover in front-rear and left-right directions with respect to the inner body; a UI module mounted on an upper portion of the inner body, and provided with a user control panel and an information display unit on an upper portion thereof; and a UI dust cover mounted on an inner side of the outer cover to block dust inside the outer cover from entering into the user control panel and the information display unit, thereby preventing dust from entering into the UI module.

公开(公告)号：US20190307059A1

公开(公告)日：2019-10-10

申请号：US16260865

申请日：2019-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Woo HONG ,  Siyong KIM ,  Hanshin KIM ,  Hyunsup SONG ,  Kyeongho CHO ,  Jaehun HAN ,  Jiwoo HA

IPC: A01D34/00 ,  A01D34/81 ,  G05D1/02 ,  B25J11/00

Abstract: A lawn mower robot includes an inner body including wheels for traveling on both sides thereof, an outer cover mounted at an upper portion of the inner body and surrounding the inner body, a handle mounted at an upper portion of the outer cover, a plurality of support portions disposed to be spaced apart from each other at an upper portion of the inner body in a front-rear direction and in a left-right direction and elastically supporting the outer cover in the front-rear direction and in the left-right direction with respect to the inner body, and a plurality of movement range restricting portions respectively restricting movement ranges of the plurality of support portions. Each movement range restricting portion includes an engaging portion formed at an upper portion of each support portion and a movement restricting cover installed at an upper portion of the inner body.