Patent ID: 11891273
Assignee: TAESUNG ESCALATOR CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 3:
4. The overspeed and reverse drive preventing device according to claim 3, wherein the ratchet part further includes a pair of discs which are formed in a hollow disc shape and are respectively coupled to right and left sides of the ratchet wheel,
wherein the friction part includes:
brake parts which are formed in a hollow disc shape and respectively get in contact with the outer surfaces of the discs by the braking members mounted on the inner surface thereof; and
stoppers which are formed in a hollow cylindrical shape, are mounted on the outer faces of the brake parts, and are coupled with the brake parts by pressing bolts,
wherein the stoppers are coupled with the escalator rotary shaft to be rotated together when fastening bolts are fastened to fastening bolt holes formed from the outer peripheral surface to the inner peripheral surface to communicate with the inner face and end portions of the fastening bolts press the rotary shaft, and
wherein the brake parts are pressed by the pressing bolts respectively coupled with the stoppers so as to get in close contact with the discs.