公开(公告)号：US12272581B2

公开(公告)日：2025-04-08

申请号：US17493198

申请日：2021-10-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangjune Bae ,  Jimin Choi ,  Hyungsik Um ,  Jeongjae Bang ,  Hyeonhui Cho

IPC: H01L21/677 ,  B61B3/02 ,  B61B12/02 ,  B65G1/04 ,  B66C9/04 ,  F16C35/00

Abstract: A steering device for an OHT according to some example embodiments of the present inventive concepts includes: an LM block; a steering plate fixedly installed to the LM block and provided with an insertion groove; a link installed in the insertion groove of the steering plate and tilted; a main bearing having an outer circumferential surface in contact with the link to reduce friction when the link is tilted; and a guide roller rotatably installed on a protrusion protruding from the link.

公开(公告)号：US20230339523A1

公开(公告)日：2023-10-26

申请号：US18094827

申请日：2023-01-09

Applicant: SEMES CO., LTD. ,  SAMSUNG ELECTRONICS CO., LTD.

Inventor： In Kyeong HWANG ,  Hyuk Jae Sung ,  Hyungsik Um ,  Hongjin Kim ,  Won Young Kim ,  Bo Seung Hwang ,  Sangjune Bae ,  Byeong Hyeon Lim

IPC: B61D15/12 ,  B61D49/00

CPC classification number: B61D15/12 ,  B61D49/00

Abstract: A rail inspection device is provided. The rail inspection device includes: a drive part configured to drive on a lower rail; side wheels configured to rotate such that the drive part moves in a first direction on the lower rail, wherein the side wheels are provided on two side surfaces of the drive part opposite to each other in a second direction that intersects the first direction; upper wheels provided on an upper surface of the drive part and configured to rotate in contact with a branch guide rail provided above an upper portion of the drive part; a body connected to a lower surface of the drive part in a third direction that is perpendicular to the first direction and the second direction; and an inclination sensor provided on the upper surface of the drive part and configured to measure an inclination of the body.