Global Patent Index - EP 0857828 B1

EP 0857828 B1 2001-12-05 - Vibrating tamper

Title (en)

Vibrating tamper

Title (de)

Vibrationsstampfer

Title (fr)

Dispositif de bourrage par vibrations

Publication

EP 0857828 B1 (DE)

Application

EP 98101033 A

Priority

DE 19704495 A

Abstract (en)

[origin: EP0857828A1] The appliance has an integral drive (3) and a guide bracket (6) with a grip end for an operator. Mass distribution of the bracket results in vibration reduction at the bracket grip end (9). Bracket geometry and mass distribution are satisfied according to:- Hs divided by ms(lhg x lh - lv x lv) = 0.8 - 1.3 ms = mass of the guide bracket; Hs = mass moment of inertia of the bracket about an axis through the centre of gravity (10) of the bracket, which is parallel to an axis through the hinge points (8); lh = distance at right angles to tamper axis (A), between centre of gravity and axis through hinge points; lhg = distance at right angles to tamper axis, between grip end and centre of gravity; lv = distance parallel to the tamper axis, between centre of gravity and axis through hinge points. The ratio for weight distribution is approx. between 0.9 and 1.3, esp. between 1.0 and 1.15. For this purpose, the bracket has a weight.

IPC 1-7 (main, further and additional classification)

E02D 3/061; B06B 1/14; E01C 19/35

IPC 8 full level (invention and additional information)

E01C 19/34 (2006.01); B06B 1/14 (2006.01); E01C 19/35 (2006.01); E02D 3/061 (2006.01)

CPC (invention and additional information)

E01C 19/35 (2013.01); B06B 1/14 (2013.01); E02D 3/061 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IE IT LI NL PT SE

EPO simple patent family

EP 0857828 A1 19980812; EP 0857828 B1 20011205; AT 210227 T 20011215; AU 5299498 A 19980813; AU 722562 B2 20000803; BR 9800528 A 19990706; CA 2228924 A1 19980807; CA 2228924 C 20071204; DE 19704495 A1 19980813; DK 0857828 T3 20020304; ES 2168692 T3 20020616; JP H10219615 A 19980818; PT 857828 E 20020531; US 6019179 A 20000201; ZA 9800944 B 19980811

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