US 4,759,172 AGranted

Hay-making machine

AssigneeFella-Werke G.m.b.H.

InventorsJosef Purrer, Bernhard Kohl

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Abstract

A hay-making machine, in particular for side-delivery raking, includes a plurality of truncated-cone-shaped rotary devices which are rotatably arranged about an axis which is slightly inclined in relation to a vertical line, the rotary devices being provided with elastic deformable tools and being arranged side-by-side on a supporting arm which slightly ascends in relation to the working surface and which is supported on the ground by a supporting plate and also provided with a joint drive. The supporting arm extends essentially perpendicular to the working direction of the machine and the adjacent rotary devices overlap. A driving pulley at on end of the supporting arm is connected by superimposed V-belts to a respective rotary device, and the V-belts are provided with a band-like widened backside to form a closed working surface.

Claims20

Dependent claims

A hay-making machine movable over a working surface, comprising an elongated supporting arm, a plurality of rotary means mounted on said supporting arm in linear array, each of said rotary means comprising a bottom supporting plate, said bottom supporting plates being generally aligned along a plane parallel to said working surface, each of said rotary means further comprising a rotary elastic deformable tool means and a driven pulley for rotating said tool means, each of said rotary means being mounted on said elongated supporting arm such that the axis of each rotary means is perpendicular to said elongated supporting arm, said supporting arm being inclined relative to said working surface such that each of said rotary means has its axis inclined relative to the working surface, said supporting arm being disposed generally perpendicular to the direction of movement of the hay-making machine, and driving means for driving said rotary means, said driving means comprising a driving pulley at one end portion of said supporting arm, said driving pulley having a plurality of pulley grooves, and a plurality of belts drivingly disposed between said plurality of pulley grooves and each of said pulleys on each of said rotary means such that rotation of said drive pulleys simultaneously rotates each of said rotary means.

A hay-making machine movable over a working surface, comprising an elongated supporting arm, a plurality of rotary means mounted on said supporting arm in linear array, each of said rotary means comprising a bottom supporting means, said bottom supporting means being generally aligned along a plane parallel to said working surface, each of said rotary means further comprising a tool means and a driven pulley for rotating said tool means, said driven pulleys on each of said rotary means being disposed in variable elevational array relative to said working surface, each of said rotary means being mounted on said elongated supporting arm such that the axis of each of said rotary means is perpendicular to said elongated supporting arm, said supporting arm being inclined relative to said working surface such that each of said rotary means has its axis inclined relative to the working surface, and driving means for driving said rotary means, said driving means comprising a driving pulley at one end portion of said supporting arm, and a plurality of belts disposed at a variable elevational array relative to said working surface drivingly disposed between said driving pulley and each of said driven pulleys on each of said rotary means such that rotation of said driving pulley simultaneously rotates each of said rotary means.

Dependencies are inferred from the claim text.