EP 0057030 B1 19850424 - RAILWAY TRACK TAMPING MACHINE
Title (en)
RAILWAY TRACK TAMPING MACHINE
Publication
Application
Priority
CH 42881 A 19810123
Abstract (en)
[origin: US4449459A] A track tamping machine particularly a track tamping, levelling and lining machine is equipped with at least one tamping unit including a carrier which carries tamping tools. The tamping unit is vertically movable on a sub-frame by means of a hydraulic cylinder and is fastened thereto. The sub-frame itself is suspended from the chassis of the tamping machine pivotably like a pendulum. The sub-frame has two guide columns guiding the tool carrier through its vertical motion and, at its lower end guide rollers which revolve on the rail for the purpose of centering the tamping unit. A control cylinder is activated for the purpose of swinging the tamping unit in such a way that while the machine is uniformly moving forward at constant speed, the tamping tools can perform their tamping function at subsequent ties.
IPC 1-7
IPC 8 full level
E01B 27/16 (2006.01)
CPC (source: EP US)
E01B 27/16 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT
DOCDB simple family (publication)
EP 0057030 A1 19820804; EP 0057030 B1 19850424; AT E12955 T1 19850515; AU 545691 B2 19850725; AU 7952782 A 19820729; BR 8200340 A 19821123; CA 1180947 A 19850115; CH 652430 A5 19851115; DE 3263190 D1 19850530; JP H0316441 B2 19910305; JP S57143001 A 19820904; US 4449459 A 19840522; ZA 8255 B 19821124
DOCDB simple family (application)
EP 82200040 A 19820114; AT 82200040 T 19820114; AU 7952782 A 19820114; BR 8200340 A 19820122; CA 394731 A 19820122; CH 42881 A 19810123; DE 3263190 T 19820114; JP 776782 A 19820122; US 34134482 A 19820121; ZA 8255 A 19820106