Grinding machine with lifting mechanism
OwnerStephen Godfrey Bernhard, Kenneth Ian Fearinventors
Life of this patent
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Abstract
A grinding machine for sharpening the blades of a mower. The grinding machine includes a lifting system for raising the mowing machine onto an operating platform where the blades are sharpened. A rotationally driven grinding wheel traverses its drive shaft in a controlled manner for sharpening each blade. A remotely mounted motor is coupled, by means of a flexible link and a motor coupling, to the mower's blade cylinder for rotating the blade cylinder during sharpening. The motor coupling is mounted to an adjustable mounting assembly for adjustment of the grinding machine to a variety of mower sizes and configurations. The lifting system includes a hydraulic cylinder which, upon extension, engages a drive chain to raise a lifting platform.
Claims21
A grinding machine comprising
- (a) a lifting mechanism for raising an assembly comprising a rotary blade cylinder having at least one cutting blade substantially from ground level to an operating platform;
- (b) a grinding wheel for sharpening the at least one cutting blade;
- and
- (c) means for rotating said rotary blade cylinder, said means for rotating comprising a mechanical coupling.
A grinding machine for sharpening a blade of a mowing machine, the mowing machine comprising a rotary blade cylinder, said grinding machine comprising:
- (a) an operating platform for supporting the rotary blade cylinder in a raised position;
- (b) a lifting system for raising the rotary blade cylinder onto said operating platform, from a lower position to the raised position;
- (c) a grinding wheel assembly attached to said operating platform;
- and
- (d) coupling means, movable along said operating platform, for engaging and rotating the rotary blade cylinder when the rotary blade cylinder is in the raised position.
Dependencies are inferred from the claim text.