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US 4,062,174 AGranted
Hay-making machine
AssigneeWilhelm Stoll Maschinenfabrik GmbH
InventorGregor Knuesting
Life of this patent
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AssigneeWilhelm Stoll Maschinenfabrik GmbH
InventorGregor Knuesting
Estimating the term…
A hay-making machine having rakes supported on a frame for rotation about a generally vertical axis. The tines of the rotary rake are secured on tine carrier arms which extend outwardly from an axis of rotation for the rotary rake and are rotatable with the tine carrier arm about the longitudinal axis therefor. A control lever is mounted on the inner end of the tine carrier arms. A cam roller is mounted on the control lever and engages a cam pathway mounted on the frame of the machine. The tines on the tine carrier arm are secured to a tine carrier part which is pivotal relative to the tine carrier arm about an axis perpendicular to the longitudinal axis of the tine carrier arm. The pivoting action of the tine carrier part facilitates a reversal of the tines to further facilitate a movement of the rotary rake in an opposite direction of rotation about the generally vertical axis of rotation. A locking mechanism is provided to secure the tine carrier part in two positions spaced approximately 180.degree. from one another.
In a hay-making machine having a machine frame and at least one rotary rake which is driven rotatingly about a generally vertical axis of rotation and is supported on said machine frame, a rotary frame mounted on said machine frame, said rotary rake having tines which are secured on each of a plurality rotatable tine carrier arrms which extend outwardly from an axis of rotation of said rotary rake and which are supported in said rotary frame and are pivotal about their longitudinal axis, each of said tine carrier arms having at their radially inner ends elongated control levers which are provided with cam rollers, said control levers being movable into mirror-image positions relative to a plane which extends through the longitudinal axis of each of said tine carrier arms for the purpose of enabling a reversal of the direction of rotation of said rotary rakes, said cam rollers each being coupled in at least one of these two positions with a control cam pathway on said machine frame, the improvement comprising wherein each of said tine carrier arms has a tine carrier part which is pivotally secured to said carrier arm and is movable through at least 180.degree. relative to said carrier arm, said tines of each tine carrier arm being secured to said tine carrier part and movable therewith about the pivot axis between said carrier arm and said carrier part, said pivot axis being generally aligned with the longitudinal axis of said control lever and intersects the longitudinal axis of said tine carrier arm and the axis of the associated cam roller, each of said tines extending at a right angle with respect to the longitudinal axis of said tine carrier arm, locking means for securing said tine carrier part in its two end positions so that the tines will lie approximately mirror-imagelike relative to a plane containing said longitudinal axis of said tine carrier arm and said longitudinal axis of said control lever whereby each of said tines is adjustable to accommodate a rotation of said rotary rake in opposite directions.
A hay-making machine having a machine frame and at least one reversible rotary rake driven for rotation about a generally vertical axis of rotation, comprising:
Dependencies are inferred from the claim text.