Title:
TROLLEY SYSTEM HAVING SAFETY RATCHET ARM TO MAINTAIN RMQC TROLLEY RAIL
Document Type and Number:
WIPO Patent Application WO/2023/153725
Kind Code:
A1
Abstract:
The present invention relates to a trolley system having a safety ratchet arm to maintain an RMQC trolley rail, comprises a maintenance trolley body (100), a trolley wheel (200), a safety ratchet arm (300), and a jack module (400), as main elements, and has an improved structure enabling the safety ratchet arm to automatically turn by its own weight without power and then return to be seated on a running rail, so as to prevent shaking or tilting when the maintenance trolley body is installed or released, thereby securing the stability of work at heights.
Inventors:
PARK JONG SAM (KR)
KIM SUNG JAE (KR)
KIM SUNG JAE (KR)
Application Number:
PCT/KR2023/001582
Publication Date:
August 17, 2023
Filing Date:
February 03, 2023
Export Citation:
Assignee:
DOOTECH CO LTD (KR)
International Classes:
B66C9/18; B63B27/12; B66C9/08
Foreign References:
| KR20100086252A | 2010-07-30 | |||
| KR20170126534A | 2017-11-20 | |||
| KR20010086836A | 2001-09-15 | |||
| JPH0853006A | 1996-02-27 | |||
| KR20110094755A | 2011-08-24 | |||
| KR102383978B1 | 2022-04-08 |
Attorney, Agent or Firm:
CHU, Min Ho (KR)
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