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US 4,288,881 AGranted
Bridge laying apparatus
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsJurgen Mahncke, Hans Weigele, Dieter Hotz
Life of this patent
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AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsJurgen Mahncke, Hans Weigele, Dieter Hotz
Estimating the term…
A bridge laying apparatus of the type having a vehicle and at least two bridge sections which are transportable thereon in a superimposed position and are joinable into a bridge for spanning an obstacle by devices carried by the vehicle. The bridge includes plural tracks connected to one another via crossbeams and the device is arranged and guided between the bridge tracks and includes a launching girder that is partially embedded within a laying beam and supported by roller pairs arranged on both sides of the launching girder, a respective one of the rollers of these roller pairs serving for guiding and supporting the bridge on the laying beam and the other roller of the roller pairs serving for guiding and supporting the launching girder in the bridge. A guide arm is articulated to the vehicle and the laying beam is held thereon by rollers which enable longitudinal displacement of the laying beam on the guide arm. The guide arm is shiftable about a horizontal axis by way of a hydraulic cylinder unit. The bridge can be laid in place with or without the use of the launching girder, depending upon the length of the obstacle spanned thereby.
Bridge laying apparatus comprising a vehicle with devices for supporting at least two bridge sections, said bridge sections being joinable into a bridge and being superimposable for transport, as well as devices for joining of said bridge sections and laying of the bridge, wherein the bridge includes plural tracks connected to one another via crossbeams and the said devices are arranged and guided between said bridge tracks, characterized in that a laying beam with a launching girder releasably engaged therewith forms the laying device, said laying device being supported in a longitudinally displaceable manner via a guide means mounted to the vehicle and comprising roller pairs arranged on both sides of the launching girder, a respective one of these roller pairs serving for guiding and supporting the bridge on the laying beam and the other roller of the roller pairs serving for guiding and supporting the launching girder in the bridge, wherein said laying beam is displaceably attached to said vehicle, and wherein said launching girder is operable to remain with said bridge, upon disengagement of its releasable engagement with the laying beam.
A bridge laying apparatus comprising:
Bridge laying apparatus comprising a vehicle with devices for supporting at least two bridge sections, said bridge sections being joinable into a bridge and being superimposable for transport, as well as devices for joining of said bridge sections and laying of the bridge, wherein the bridge includes plural tracks connected to one another via crossbeams and the said devices are arranged and guided between said bridge tracks, characterized in that a laying beam with a launching girder partially embedded therein forms the laying device, said laying device being supported in a longitudinally displaceable manner via a guide means mounted to the vehicle and comprising roller pairs arranged on both sides of the launching girder, a respective one of these roller pairs serving for guiding and supporting the bridge on the laying beam and the other roller of the roller pairs serving for guiding and supporting the launching girder in the bridge, wherein the gripping device comprises a catch hook attached to the laying beam, a complementarily shaped opening in the launching girder for the reception of the catch hook and spring means for urging said catch hook toward said opening.
Dependencies are inferred from the claim text.