device for bridging expansion joints in roadways, bridges, od. etc.

摘要

In a device for bridging expansion joints in roads, bridges or the like, with bars (1) which extend parallel to the joint edges and are supported displaceably on crossmembers (3) bridging the joint (2) and the spacings of which can be adjusted, when there are changes in the joint width, under the control of elastomeric push springs (9) which connect the bars to one another and to the two joint edges (6, 8) in the manner of a closed control chain, for the tilt-proof mounting of the bars there are two closed control chains connecting these to one another and to the two joint edges and consisting of the elastomeric push springs. These control chains lie at a distance one above the other in two horizontal planes. The push springs are fastened directly or indirectly to bend-resistant stays (10) projecting downwards from the bars. IMAGE