公开(公告)号：US20200040965A1

公开(公告)日：2020-02-06

申请号：US16530883

申请日：2019-08-02

Applicant: ALSTOM Transport Technologies

Inventor： Leonardo FORMENTI ,  Andrea PEREGO ,  Samuele RUELLA

IPC: F16G11/12

Abstract: A tensioning device includes a circular spring, and a pulley rotatably connected to the circular spring. The pulley includes a circumferential groove, which has a V-shaped cross-section defined by two lateral converging walls. The pulley also includes a flexible rope having a variable cross section, extending between a first end connected to the pulley and a second end intended to be connected to the cable. The pulley is rotatably movable around an axis, between a first position in which the flexible rope is arranged in the circumferential groove around the axis, and a second position in which the flexible rope is unwound.

公开(公告)号：US20190001823A1

公开(公告)日：2019-01-03

申请号：US15962034

申请日：2018-04-25

Applicant: ALSTOM Transport Technologies

Inventor： Patrick DUPRAT ,  Leonardo FORMENTI

IPC: B60L5/38 ,  B60L5/08 ,  B60L11/18

Abstract: The invention relates to a shoe (10) on an electrical power supply track for an electric railway vehicle, the shoe (10) comprising: a power supply flange (12) movable between a retracted position and a deployed position; an actuator (11) able to move the flange between the retracted and deployed positions; and a mechanical system (13) connecting the flange to the actuator; characterized in that the actuator (11): has a movement speed such that it is able to move the flange (12) between its retracted and deployed positions in a time period shorter than or equal to 1 second, and preferably shorter than or equal to 0.5 seconds; and has a number of operating cycles before failure greater than or equal to 2,500,000.