Title:
PAVING SCREED WITH A LOCKING DEVICE AND ROAD PAVER WITH SUCH A PAVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/192752
Kind Code:
A8
Abstract:
The invention relates to a paving screed (7) for a road paver (1), comprising an upper frame (14), a lower frame (15) mounted on the upper frame (14) in a height-adjustable manner, a linear actuator configured to adjust the lower frame (15) vis-a-vis the upper frame (14) in a vertical direction, a height-adjustment drive (16) configured to drive the linear actuator, and a locking device (23) configured to immobilize the lower frame (15) in its position relative to the upper frame (14), wherein the locking device (23) is connected to the upper frame (14) and the lower frame (15) and comprises an essentially vertically oriented hydraulic cylinder (20) configured to exert a clamping force at least partially parallel to the direction of adjustment of the linear actuator on the latter so that a frictional connection is created in the linear actuator, which prevents an adjustment of the linear actuator. Moreover, the invention relates to a road paver with such a paving screed.
Inventors:
HEUSINGER JUERGEN (DE)
SCHMIDT ERIC (DE)
BAIONI MARCO (DE)
STEIN PETER (DE)
LAUGWITZ NIELS (DE)
SCHMIDT ERIC (DE)
BAIONI MARCO (DE)
STEIN PETER (DE)
LAUGWITZ NIELS (DE)
Application Number:
PCT/EP2019/000108
Publication Date:
December 19, 2019
Filing Date:
April 03, 2019
Export Citation:
Assignee:
BOMAG GMBH (DE)
International Classes:
E01C19/48
Attorney, Agent or Firm:
HEIDLER, Philipp (DE)
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