EP 2251488 B1 20151111 - Tamper for soil compaction
Title (en)
Tamper for soil compaction
Title (de)
Stampfgerät zur Bodenverdichtung
Title (fr)
Pilon pour compactage du sol
Publication
Application
Priority
DE 102009003113 A 20090514
Abstract (en)
[origin: EP2251488A2] The device (1) has working mass (4) driveable in a compacting manner, where the working mass is linearly movable back and forth via a crank mechanism, a piston (16) and a spring set (3) by a motor belonging to an upper mass (2). The spring set includes two springs (17, 18) i.e. compression springs, where one of the springs is compressible during a forward movement of the piston and the other spring is compressible during a backward movement of the piston. The latter spring is arranged within a free space inside the former spring. The piston exhibits a pot shape.
IPC 8 full level
E02D 3/068 (2006.01)
CPC (source: EP)
E02D 3/068 (2013.01)
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2251488 A2 20101117; EP 2251488 A3 20120926; EP 2251488 B1 20151111
DOCDB simple family (application)
EP 10162811 A 20100514