US 12,188,184 B2
Tamping assembly for tamping sleepers of a track
Thomas Philipp, Leonding (AT)
Assigned to Plasser & Theurer Export von Bahnbaumaschinen GmbH, Vienna (AT)
Appl. No. 17/278,820
Filed by Plasser & Theurer Export von Bahnbaumaschinen GmbH, Vienna (AT)
PCT Filed Sep. 24, 2019, PCT No. PCT/EP2019/075584
§ 371(c)(1), (2) Date Mar. 23, 2021,
PCT Pub. No. WO2020/083590, PCT Pub. Date Apr. 30, 2020.
Claims priority of application No. A 330/2018 (AT), filed on Oct. 24, 2018.
Prior Publication US 2022/0034043 A1, Feb. 3, 2022
Int. Cl. E01B 27/16 (2006.01)
CPC E01B 27/16 (2013.01) [E01B 2203/12 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A tamping assembly for tamping sleepers of a track, comprising:
a vertically adjustable tool carrier;
a tamping unit having oppositely positioned tamping tools mounted on said vertically adjustable tool carrier,
a plurality of squeezing drives,
a vibration drive, wherein the tamping tools are coupled in each case via one of said squeezing drives to said vibration drive,
wherein each tamping tool comprises a pivot lever rotatable about a pivot axis and at least one tamping tool mount for accommodating at least one tamping tine, wherein a first squeezing drive of said plurality of squeezing drives is coupled directly to the vibration drive and articulatedly connected to a first pivot lever, that a second squeezing drive of said plurality of squeezing drives is coupled to the vibration drive via a separate coupling unit and articulatedly connected to a link, mounted on the tool carrier, as well as to a second pivot lever wherein the link is mounted for rotation about the pivot axis of the first pivot lever.