US 11,105,047 B2
Tamping unit and method for tamping sleepers of a track
Heinz Springer, Tokyo (JP)
Assigned to PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H., Vienna (AT)
Appl. No. 16/330,133
Filed by PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H., Vienna (AT)
PCT Filed Sep. 7, 2017, PCT No. PCT/EP2017/001056
§ 371(c)(1), (2) Date Mar. 4, 2019,
PCT Pub. No. WO2018/065080, PCT Pub. Date Apr. 12, 2018.
Claims priority of application No. A 457/2016 (AT), filed on Oct. 4, 2016.
Prior Publication US 2019/0234025 A1, Aug. 1, 2019
Int. Cl. E01B 27/16 (2006.01)
CPC E01B 27/16 (2013.01) 5 Claims
OG exemplary drawing
 
1. A tamping unit for tampingsleepers of a track, comprising:
an assembly frame;
a drive;
a tool carrier mounted on said assembly frame for vertical adjustment by means of said drive,
pairs of two oppositely positioned tamping tools coupled to said drive wherein said tamping tools are squeezable towards one another about a respective pivot axis;
a vibration drive configured for vibrating said tamping tools and which is configured for producing horizontal vibrations;
a squeezing drive configured for squeezing said tamping tools together;
wherein said vibration drive is associated with the drive, the vibration drive setting the tamping tools in a vibration which is effective vertically.