EP 0239561 B1 19920729 - APPARATUS FOR GENERATING VIBRATIONS
Title (en)
APPARATUS FOR GENERATING VIBRATIONS
Publication
Application
Priority
AT 83386 A 19860327
Abstract (en)
[origin: EP0239561A2] The invention relates to a device for generating vibrations, in particular for rammers, such as for example road rollers, having unbalanced masses (6, 7, 15) which can be moved with respect to one another and fixed in their relative position on at least one rotatably mounted and drivable shaft (1). A first group of two unbalanced masses (6, 7) which can be rotated with respect to one another through 180 DEG into end positions and a second group of unbalanced masses (15) which can be rotated with respect to the first group into end positions are provided, all the unbalanced masses being rotatably mounted about a common axis. The unbalanced masses (6, 7) of the first group can be manually adjusted in relation to one another. The unbalanced masses (15) of the second group are adjusted by the direction of rotation being reversed. The unbalanced masses (15) of the second group are mounted so as to be freely rotatable on the shaft (1). These unbalanced masses (15) of the second group have stop surfaces (17 and 18) which cooperate with a stop bearer (19) arranged fixedly on the rotating shaft (1). By reversing the direction of rotation, the unbalanced masses (15) of the second group are rotated relative to the unbalanced masses (6, 7) of the first group. In this way, it is possible to achieve an adjustment of the vibrator in four stages. <IMAGE>
IPC 1-7
IPC 8 full level
B06B 1/16 (2006.01); E01C 19/28 (2006.01)
CPC (source: EP)
B06B 1/162 (2013.01); E01C 19/286 (2013.01)
Designated contracting state (EPC)
BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0239561 A2 19870930; EP 0239561 A3 19880615; EP 0239561 B1 19920729; AT 389723 B 19900125; AT A83386 A 19890615; CN 87102358 A 19880106; DE 3780666 D1 19920903; TR 23201 A 19890615
DOCDB simple family (application)
EP 87890045 A 19870310; AT 83386 A 19860327; CN 87102358 A 19870326; DE 3780666 T 19870310; TR 19787 A 19870324