EP 2770108 B1 20210505 - Tamping unit for a rail tamping machine

Title (en)

Tamping unit for a rail tamping machine

Title (de)

Stopfaggregat für eine Gleisstopfmaschine

Title (fr)

Unité de bourrage pour une machine à bourrer

Publication

EP 2770108 B1 20210505 (DE)

Application

EP 13160788 A 20130325

Priority

AT 501212013 A 20130222

Abstract (en)

[origin: EP2770108A1] The tamping unit (1) has a height adjustable guided carrier (2) that is arranged in tamping unit main portion and is designed as a rocker arm. The lower ends (5) of tamping unit are plunged into a gravel bed (4), are driven in opposite directions by a vibration drive (6) and are brought next to each other hydraulically. A tamping tool (3) is associated with a hydraulic cylinder (11) and a displacement sensor (12). The vibration drive of the tamping tool and the hydraulic cylinder are controlled based on the displacement sensor signal.

IPC 8 full level

E01B 27/16 (2006.01)

CPC (source: AT EP RU US)

E01B 27/16 (2013.01 - AT EP RU US)

Citation (examination)

AT A385574 A 19770215 - PLASSER BAHNBAUMASCH FRANZ [AT]

Citation (opposition)

Opponent : Plasser & Theurer

AT 339358 B 19771010 - PLASSER BAHNBAUMASCH FRANZ [AT]
EP 1653003 A2 20060503 - PLASSER BAHNBAUMASCH FRANZ [AT]
DE 2114282 A1 19711028 - PLASSER BAHNBAUMASCH FRANZ
DE 2331915 A1 19741107 - PLASSER BAHNBAUMASCH FRANZ
EP 0518845 A1 19921216 - PLASSER BAHNBAUMASCH FRANZ [AT]
WO 02093019 A1 20021121 - ROSEMOUNT INC [US]
AT 198294 B 19580625 - PLASSER BAHNBAUMASCH FRANZ, et al
DE 2039784 A1 19710311 - JACKSON VIBRATORS
DE 3136637 A1 19820819 - PLASSER BAHNBAUMASCH FRANZ [AT]
EP 0688902 A1 19951227 - PLASSER BAHNBAUMASCH FRANZ [AT]
US 4092903 A 19780606 - ALLMER FRANZ
EBERTSHÄUSER H, HELDUSER, S: "Fluidtechnik von A bis Z. Passage", 1 January 1995, VEREINIGTE FACHVERLAGE, pages: 167 - 169, XP055892420
FINDEISEN DIETMAR: "Ölhydraulik - Handbuch für die hydrostatische Leistungs- übertragung in der Fluidtechnik", 1 January 2006, SPRINGER VERLAG, pages: 522 - 527, XP055892431
HESSE HORST: "Elektronisch-hydraulische Systeme", 1 January 2008, article "Elektronisch-hydraulische Systeme (auszug)", pages: 60 - 63, XP055714283

Opponent : Plasser & Theurer, Export von Bahnbaumaschinen, Gesellschaft m.b.H.

EP 0180570 A2 19860507 - PLASSER BAHNBAUMASCH FRANZ [AT]

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)

EP 2770108 A1 20140827; EP 2770108 B1 20210505; AT 513973 A4 20140915; AT 513973 B1 20140915; CN 105189868 A 20151223; CN 109577114 A 20190405; ES 2879282 T3 20211122; PL 2770108 T3 20211129; RU 2015135381 A 20170328; RU 2640165 C2 20171226; US 2016010287 A1 20160114; US 9957668 B2 20180501; WO 2014127393 A1 20140828

DOCDB simple family (application)

EP 13160788 A 20130325; AT 2014050027 W 20140122; AT 501212013 A 20130222; CN 201480016782 A 20140122; CN 201811166525 A 20140122; ES 13160788 T 20130325; PL 13160788 T 20130325; RU 2015135381 A 20140122; US 201414769585 A 20140122