Patent ID: 6968786
Filing Date: 2005-11-29
Classification: E01B

Abstract:
1. A tamping tool unit for tamping ballast under a respective one of a succession of ties of a railroad track, which comprises (a) a frame extending in a longitudinal direction, (b) a pair of tamping tool levers mounted on the frame for pivoting about pivot axes in a plane extending in the longitudinal direction, (c) a reciprocating drive connected to each tamping tool lever for pivoting the tamping tool lever, (d) a tamping pick at a lower end of each tamping tool lever, (e) a substantially horizontally extending guide on at least one of the tamping tool levers for displacing the tamping pick in a direction extending substantially in the longitudinal direction and perpendicularly to the pivot axis of the at least one tamping tool lever, and (f) a fixing device for fixing the tamping pick on the lower tamping tool lever end.