An extension-retraction link includes: a stationary shaft having a tubular shape; a movable shaft that can slide with respect to the stationary shaft; and an actuator that has a bearing unit supporting a screw shaft and moves the movable shaft. The stationary shaft includes: a first bush in contact with a first plane surface of the movable shaft; a second bush in contact with a second plane surface of the movable shaft; a third bush in contact with a third plane surface of the movable shaft; a fourth bush in contact with a fourth plane surface of the movable shaft; a first elastic member pressing the third bush to the third plane surface; and a second elastic member pressing the fourth bush to the fourth plane surface. The bearing unit includes: a bearing that is in contact with the screw shaft; a bearing holder that fits in a mounting groove provided to the stationary shaft and holds the bearing; and a third elastic member that is located between a bottom surface of the mounting groove and the bearing holder.
EXTENDING AND CONTRACTING LINK AND SUSPENSION
AUSDEHNUNGS- UND ZUSAMMENZIEHUNGSVERBINDUNG UND AUFHÄNGUNG
ÉLÉMENT DE LIAISON D'EXTENSION ET DE CONTRACTION ET SUSPENSION
2020-10-14
Patent
Electronic Resource
English
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
EXTENDING AND CONTRACTING RAIL DEVICE FOR RAILWAY WORK VEHICLE
European Patent Office | 2020
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