EP 1335800 A1 20030820 - DEVICE FOR THE CONTINUOUS ADJUSTMENT OF UNBALANCE OF STEERABLE VIBRATION PLATES
Title (en)
DEVICE FOR THE CONTINUOUS ADJUSTMENT OF UNBALANCE OF STEERABLE VIBRATION PLATES
Title (de)
VORRICHTUNG ZUR STUFENLOSEN UNWUCHTVERSTELLUNG BEI LENKBAREN VIBRATIONSPLATTEN
Title (fr)
DISPOSITIF DE REGLAGE CONTINU DE MASSES NON EQUILIBREES DE PLAQUES VIBRANTES ORIENTABLES
Publication
Application
Priority
- DE 20019823 U 20001122
- EP 0113557 W 20011121
Abstract (en)
[origin: WO0242010A1] The invention relates to steerable vibration plates that are set vibrating by rotating unbalanced masses. By twisting the unbalanced masses relative to one another the resulting forces and their direction of action can be changed, thereby influencing the travel speed of the vibrating plate and its direction of travel. The inventive vibration plate is characterized in that the unbalanced masses disposed on a common shaft can be adjusted independent of external forces and torques since the adjustment piston (12a; 12b) adjusting the unbalanced masses is braced in the adjustment cylinder to a much higher degree than would be possible with conventional coil springs. To this end, every adjustable unbalanced mass is associated with a double-action hydraulic cylinder (10a; 10b) that comprises two liquid chambers (14a, 16a; 14b, 16b). The connection of said chambers to a storage (30) and a pump (34) can be locked in order to fix the piston (12; 12b) which can be adjusted within the hydraulic cylinder (10a; 10b).
IPC 1-7
IPC 8 full level
E02D 3/046 (2006.01); B06B 1/16 (2006.01); E01C 19/22 (2006.01); E02D 3/074 (2006.01)
CPC (source: EP US)
E02D 3/074 (2013.01 - EP US); Y10T 74/18552 (2015.01 - EP US)
Citation (search report)
See references of WO 0242010A1
Designated contracting state (EPC)
CH DE GB LI SE
DOCDB simple family (publication)
DE 20019823 U1 20010208; DE 50106474 D1 20050714; EP 1335800 A1 20030820; EP 1335800 B1 20050608; JP 2004514078 A 20040513; JP 3851270 B2 20061129; US 2004035104 A1 20040226; US 7017679 B2 20060328; WO 0242010 A1 20020530
DOCDB simple family (application)
DE 20019823 U 20001122; DE 50106474 T 20011121; EP 0113557 W 20011121; EP 01997363 A 20011121; JP 2002544179 A 20011121; US 41687403 A 20030515