EP 1649121 A1 20060426 - INTERNAL VIBRATOR PROVIDED WITH A LIBERATION DEVICE
Title (en)
INTERNAL VIBRATOR PROVIDED WITH A LIBERATION DEVICE
Title (de)
INNENRÜTTELVORRICHTUNG MIT BEFREIUNGSEINRICHTUNG
Title (fr)
VIBRATEUR INTERNE POURVU D'UN DISPOSITIF DE LIBERATION
Publication
Application
Priority
- EP 2004007683 W 20040712
- DE 10333555 A 20030723
Abstract (en)
[origin: WO2005012669A1] The invention relates to an internal vibrator consisting of an electric motor (2), a vibrator case (1) and an unbalance device (3) arranged in the vibrator case (1) and rotationally driven by the electric motor (2). The inventive internal vibrator also comprises a main switch (7) which switches on and off said electric motor operating in normal operation mode associated with a rotary behaviour for compacting liquid concrete. In order to release said internal vibrator from a deadlock, an operating mode modification device enables it to operate in a liberation mode wherein the rotary behaviour of the electric motor (2) differs from the normal operation mode thereof. The deviation of the rotary behaviour of the electric motor (2) displays, for example the reversion of the rotation direction and the speed thereof and the temporal modification of the speed of rotation or the rotation direction of said electric motor.
IPC 1-7
IPC 8 full level
E04G 21/08 (2006.01)
CPC (source: EP US)
E04G 21/08 (2013.01 - EP US)
Citation (search report)
See references of WO 2005012669A1
Designated contracting state (EPC)
DE ES FR IT SE
DOCDB simple family (publication)
WO 2005012669 A1 20050210; DE 10333555 A1 20050224; DE 10333555 B4 20080327; DE 502004002202 D1 20070111; EP 1649121 A1 20060426; EP 1649121 B1 20061129; ES 2276318 T3 20070616; JP 2006528289 A 20061214; US 2008316853 A1 20081225
DOCDB simple family (application)
EP 2004007683 W 20040712; DE 10333555 A 20030723; DE 502004002202 T 20040712; EP 04740935 A 20040712; ES 04740935 T 20040712; JP 2006520726 A 20040712; US 59505604 A 20040712