IP Library Granted Patent US 12,722,893
Granted Patent B2
US 12,722,893 · App. 18/210,777 · Granted Sep 1, 2026

Robot system

Inventors: Haklim Lee (Seoul, KR); Jeeyoung Cheon (Seoul, KR)
Assignee: BEAR ROBOTICS KOREA, INC.
B65G1/1375
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Quick Facts
Patent No.
US 12,722,893
App. No.
18/210,777
Granted
Sep 1, 2026
Kind
B2
Abstract

A robot system includes a station body, a carrier located in the station body, a first robot having a lifter configured to lift the carrier relative to the station body, the first robot being configured to move in a first direction in the station body, and a second robot configured to move in the station body in a second direction different from the first direction, the second robot having a seating body on which the first robot is seatable.

Claims (56)

1 . A robot system comprising:

a station body;

a carrier located in the station body;

a first robot being configured to move in a first direction in the station body, the first robot including:

a first robot body;

a lifter configured to lift the carrier relative to the station body, the lifter being located on the first robot body; and

a wheel having an in-wheel motor connected to the first robot body; and

a second robot configured to move in the station body in a second direction different from the first direction, the second robot having a seating body on which the first robot is seatable.

2 . The robot system of claim 1 , wherein the station body includes a first guide rail to guide movement of the first robot, the first guide rail being located below the carrier.

3 . The robot system of claim 2 , wherein the station body includes a second guide rail to guide movement of the second robot, the second guide rail being located below the first guide rail.

4 . The robot system of claim 3 , wherein the first guide rail extends in a front and rear direction of the station body, and

wherein the second guide rail extends in a left and right direction of the station body.

5 . The robot system of claim 1 , further comprising a first robot charger configured to charge the first robot, the first robot charger being located in the station body.

6 . The robot system of claim 5 , further comprising a second robot charger configured to charge the second robot, the second robot charger being located in the station body.

7 . The robot system of claim 1 , wherein the station body includes an outlet, and

wherein the robot system further comprises:

a pusher configured to push an item located on the carrier; and

a conveyor configured to transfer the item pushed by the pusher to the outlet of the station body.

8 . The robot system of claim 1 , wherein the first robot further comprises a proximity sensor located on the first robot body.

9 . The robot system of claim 1 , wherein the first robot further comprises a guide roller located on the first robot body, the guide roller configured to roll along the station body or the second robot.

10 . The robot system of claim 1 , wherein the first robot further comprises a magnet located on a bottom of the first robot body.

11 . The robot system of claim 10 , wherein the second robot further comprises a Hall sensor configured to sense the magnet of the first robot.

12 . The robot system of claim 8 , wherein the first robot further comprises:

a battery located in the first robot body; and

a charging terminal electrically connected to the first battery.

13 . The robot system of claim 12 , wherein the lifter includes a lift plate, and wherein the charging terminal is configured to be lifted together with the lift plate.

14 . The robot system of claim 12 , wherein the second robot further comprises a supply terminal configured to be contacted by the charging terminal of the first robot.

15 . The robot system of claim 8 , wherein the lifter comprises:

a lift plate configured to lift the carrier;

a guide plate connected to the lift plate;

a lift bush located on the guide plate; and

an actuator located on the first robot body, the actuator being configured to lift the lift bush.

16 . The robot system of claim 1 , wherein the seating body of the second robot defines a first robot accommodating space configured to accommodate at least a portion of the first robot.

17 . The robot system of claim 1 , wherein the first robot comprises a wheel, and wherein a wheel accommodating portion is provided in the seating body, the wheel accommodating portion being configured to receive a portion of the wheel of the first robot.

18 . The robot system of claim 1 , wherein the second robot comprises:

a second robot body, the seating body being located on the second robot body;

a wheel connected to the second robot body;

a motor configured to rotate the wheel;

a battery located in the second robot body; and

an inner proximity sensor located on the second robot body to sense the first robot.

19 . A robot system comprising:

a station body;

a carrier located in the station body;

a first robot having a wheel and a lifter configured to lift the carrier relative to the station body, the first robot being configured to move in a first direction in the station body; and

a second robot configured to move in the station body in a second direction different from the first direction, the second robot having a seating body on which the first robot is seatable, the seating body including a wheel accommodating portion configured to receive a portion of the wheel of the first robot.

20 . A robot system comprising:

a station body;

a carrier located in the station body;

a first robot having a lifter configured to lift the carrier relative to the station body, the first robot being configured to move in a first direction in the station body; and

a second robot configured to move in the station body in a second direction different from the first direction, the second robot including:

a second robot body;

a seating body on which the first robot is seatable, the seating body being located on the second robot body;

a wheel connected to the second robot body;

a motor configured to rotate the wheel;

a battery located in the second robot body; and

an inner proximity sensor located on the second robot body to sense the first robot.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 26, 2025
From: LG ELECTRONICS INC.
To: BEAR ROBOTICS KOREA, INC.
Reel/Frame 072964/0006 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2023
From: LEE, HAKLIM; CHEON, JEEYOUNG
To: LG ELECTRONICS INC.
Reel/Frame 063976/0481 →
Priority Claims (1)
KR 10-2023-0053093 · Apr 24, 2023 · national
Continuity (1)
Related Publication 20240351788A1 · Oct 24, 2024
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