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US 8,523,298 B2Granted
Tensioning apparatus for an endless track
AssigneeJoseph Vogele AG
InventorArthur Braun
Life of this patent
Estimating the term…
Abstract
In a tracklaying gear with a frame having an idler wheel linear guide in which at least one guide piece holding the idler wheel axle is movable, and on which a tensioning means of a tensioning device supported in the frame can act in the guidance direction, at least one mechanically guided and centered elastomer spring body is installed to bulge under axial compression, such that the spring body can be readjusted, the elastomer spring body consisting of an elastomer material largely incompressible as a spring.
Claims13
Tensioning apparatus for a construction machine, comprising:
- a frame bearing an idler wheel linear guide, in which at least one guide piece holding an idler wheel axle is movable and which includes a linear guide for a slider movable in the same guiding direction and coupled with the guide piece, the slider arranged as a base in a portal structure with two guide strips situated externally at outer portal walls, and a longitudinally extending, cylindrical pressure element connected to a portal cross bar;
- and
- a tensioning means of a tensioning device supported in the frame and positioned to act in the linear guidance direction and having at least one elastomer spring body to apply tension to the tensioning device, the elastomer spring body being formed of an incompressible high-strength elastomer material as a spring, said elastomer material having a Shore A hardness of greater than 60 Shore and and a central longitudinal bore for a guide pin.
A road finishing machine, comprising:
- a frame, an idler wheel linear guide on the frame and having at least one movable guide piece holding an idler wheel axle and which includes a linear guide for a slider movable in the same guiding direction and coupled with the guide piece, the slider arranged as a base in a portal structure with two guide strips situated externally at outer portal walls, and a longitudinally extending, cylindrical pressure element connected to a portal cross bar, and a tensioning device supported on the frame and positioned to act in a linear direction on the idler wheel linear guide and having at least one elastomer spring body to apply tension to the tensioning device, the elastomer spring body comprising an incompressible high strength elastomer material and having a cylindrical configuration with and a guide pin located in a central longitudinal bore of the elastomer spring body.
Dependencies are inferred from the claim text.