US 12,447,624 B2
Material transport hand, material transport device, and material transport method
Kwang Il Kim, Seoul (KR); Ji Hwan Roh, Seoul (KR); Dong Hyun Kim, Seoul (KR); and Tae Gyeong Kim, Seoul (KR)
Assigned to HANWHA ROBOTICS CORPORATION, Seongnam-si (KR)
Filed by HANWHA ROBOTICS CORPORATION, Seongnam-si (KR)
Filed on Mar. 16, 2023, as Appl. No. 18/122,503.
Application 18/122,503 is a continuation of application No. PCT/KR2022/006618, filed on May 10, 2022.
Claims priority of application No. 10-2021-0193419 (KR), filed on Dec. 30, 2021.
Prior Publication US 2023/0226697 A1, Jul. 20, 2023
Int. Cl. B25J 9/16 (2006.01); B25J 5/00 (2006.01); B25J 15/00 (2006.01)
CPC B25J 9/1692 (2013.01) [B25J 5/007 (2013.01); B25J 9/1694 (2013.01); B25J 15/0052 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A material transport device comprising a transfer hand for receiving a material from a counterpart device or delivering the material to the counterpart device, the material transport device comprising:
an unmanned transport vehicle configured to move along a preset path;
a main body disposed on the unmanned transport vehicle; and
wherein the transfer hand is configured to load or unload the material, and comprises a positioning sensor configured to detect a marker disposed on the counterpart device and determine a position difference with the counterpart device,
wherein the material transport device is configured to calibrate a position of the transfer hand based on the position difference determined by the positioning sensor, and
wherein the main body comprises an inner space, and the transfer hand is disposed inside the inner space of the main body and at least partially protrudes outward from the inner space of the main body.