EP 1012403 A1 20000628 - WORKING MACHINE WITH REDUCED UPPER MASS VIBRATIONS
Title (en)
WORKING MACHINE WITH REDUCED UPPER MASS VIBRATIONS
Title (de)
ARBEITSGERÄT MIT REDUZIERTEN OBERMASSENSCHWINGUNGEN
Title (fr)
INSTRUMENT DE TRAVAIL A VIBRATIONS MASSIQUES SUPERIEURES REDUITES
Publication
Application
Priority
- DE 19739743 A 19970910
- EP 9805392 W 19980825
Abstract (en)
[origin: DE19739743A1] According to the invention, a ramming machine for compacting soil, or a hammer has a crank mechanism (3, 4, 5, 6, 7, 16) for producing a directed vibration, said crank mechanism being coupled with a spring assembly (11). The parts of the crank mechanism which move back and forth linearly are made from a material with a density less than that of steel. This prevents vibrations which are unpleasant for the person operating the working machine from occurring.
IPC 1-7
IPC 8 full level
E01C 19/34 (2006.01); E02D 3/046 (2006.01); E02D 3/068 (2006.01)
CPC (source: EP US)
E02D 3/046 (2013.01 - EP US); E02D 3/068 (2013.01 - EP US)
Citation (search report)
See references of WO 9913166A1
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
DE 19739743 A1 19990318; DE 19739743 C2 19990708; DE 59812129 D1 20041118; EP 1012403 A1 20000628; EP 1012403 B1 20041013; JP 2001515976 A 20010925; JP 3851084 B2 20061129; US 2004165953 A1 20040826; US 6848858 B1 20050201; US 6854923 B2 20050215; WO 9913166 A1 19990318
DOCDB simple family (application)
DE 19739743 A 19970910; DE 59812129 T 19980825; EP 9805392 W 19980825; EP 98945286 A 19980825; JP 2000510940 A 19980825; US 50835600 A 20000309; US 78442904 A 20040224