公开(公告)号：US20220341166A1

公开(公告)日：2022-10-27

申请号：US17624719

申请日：2020-07-03

Applicant: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION

Inventor： Kyung Ju HWANG ,  Yun Jin KIM ,  Alexander HUB

IPC: E04B7/18 ,  E04B7/16

Abstract: The present disclosure provides a breakaway-prevent trolley system for a flexible retractable structure, including a plate that supports a cable, and a trolley that is movable on the cable and folds or unfolds a flexible film, in which the trolley includes: a slider 100 movable along the cable while in contact with the same; a flexible film coupling member 200 provided under the slider and coupled to the flexible film; an elastic module (E) provided inside the slider, and the elastic module includes: an elastic block 10 including a spring therein and moving under an elastic force of the spring by a predetermined distance in a vertical direction; and an upper support plate 11 that supports the elastic block from above, a side support plate 12 that supports the elastic block from a side, and a lower support plate 13 that supports the elastic block from below, and a lower surface of the elastic block is provided to be vertically movable while in contact with an upper surface of the plate.