Parallel linkage with pivoted translating link
AssigneeClark Equipment Company
InventorsJames J. Bauer, Lonnie D. Hoechst
Life of this patent
Estimating the term…
Abstract
A linkage, especially for the pedals of a skid-steered tractor vehicle for operating the boom arms and attachment carrier, which requires no machining or threaded couplings. The arrangement includes links made of flat bar stock. Pivotal connections between adjacent links are made by punched holes, pins and side connectors. Adjustment for linear travel is at the pedal or valve rather than in the linkage itself. Crossover in the linkage path is by a bridging link having an open slot with curved sides rocking on a flat sided pin whereby movement is transmitted laterally.
Claims4
An improved linkage for transmitting linear motion between a linear motion causing means and a linear motion responsive means, the improvement wherein the motion causing means and the motion responsive means are on spaced paths and linear motion is transmitted along longitudinally and laterally extending paths comprising a first link connected to the motion causing means, a second link connected to the motion responsive means, both on longitudinally spaced paths, a bridging link extending between the two along the laterally extending path, a connection intermediate the ends of the bridging link, said bridging link being made of flat bar stock and said connection comprising a punched opening having curved sides in the lateral direction, a flat sided pin received in said opening engaged with the curved sides of the opening in rolling anti-friction contact, permitting the bridging link to swing between the first and second links, retaining said pin and opening and said links in engagement.
Dependencies are inferred from the claim text.