EP 3759280 B1 20220105 - TAMPING ASSEMBLY FOR A TRACK-TAMPING MACHINE
Title (en)
TAMPING ASSEMBLY FOR A TRACK-TAMPING MACHINE
Title (de)
STOPFAGGREGAT FÜR EINE GLEISSTOPFMASCHINE
Title (fr)
UNITÉ DE BOURRAGE DESTINÉE À UNE BOURREUSE DE TRAVERSES
Publication
Application
Priority
- AT 501782018 A 20180302
- AT 2019050009 W 20190228
Abstract (en)
[origin: WO2019165483A1] The invention relates to a tamping assembly (1) for a track-tamping machine with tamping tools formed as rocker arm pairs. Each tamping tool has a pick arm (5, 10) that is mounted on a support (3) so as to be pivotable about a pivot axis, with an associated hydraulic drive (4) acting on one end of said pick arm and at least one pick (9) being attached at the other end of said pick arm. In order to improve the service life of the device, it is proposed that the pick arm (5b, 10b) is formed with one web and is mounted on the pivot axis between two axis supports associated with the support, that a pick holder (16, 17) is provided between the pick arm (5b, 10b) and pick (9), which pick holder is mounted on the pick arm (5b, 10b) so as to be pivotable by means of a pivot drive (6a, b) about an adjustment axis, and that the adjustment axis is arranged normal to the pivot axis and the point at which the hydraulic drive (4) acts on the pick arm (5, 10), the longitudinal axis of the pick arm (5, 10) and the adjustment axis lying in a common plane which lies between the two axis supports associated with the support.
IPC 8 full level
E01B 27/16 (2006.01)
CPC (source: AT EP RU US)
E01B 27/16 (2013.01 - AT EP RU US); E01B 2203/12 (2013.01 - AT); E01B 2203/125 (2013.01 - AT US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019165483 A1 20190906; AT 521008 A1 20190915; AT 521008 B1 20200215; CN 111670283 A 20200915; CN 111670283 B 20220412; EP 3759280 A1 20210106; EP 3759280 B1 20220105; ES 2906446 T3 20220418; JP 2021515123 A 20210617; JP 7084488 B2 20220614; RU 2747195 C1 20210429; US 11807995 B2 20231107; US 2021002831 A1 20210107
DOCDB simple family (application)
AT 2019050009 W 20190228; AT 501782018 A 20180302; CN 201980011051 A 20190228; EP 19712112 A 20190228; ES 19712112 T 20190228; JP 2020542560 A 20190228; RU 2020132282 A 20190228; US 201916976422 A 20190228