CONCRETE SCREEDING SYSTEM WITH ROTATABLE SCREED HEAD
First Claim
1. A screeding system for use with a screeding machine during screeding of an uncured concrete surface, said screeding system comprising:
- a base unit;
a support arm extending from said base unit;
an elevation frame disposed at an outer end of said support arm, wherein said elevation frame comprises elevation actuators at opposite ends thereof;
a screed head comprising a support frame that supports an auger, a plow and a vibrating member, and wherein said auger, when operating, rotates about an axis of rotation;
wherein said support frame is pivotally mounted at lower ends of said elevation actuators;
wherein said screed head comprises a pair of leveling actuators that extend and retract to rotate said support frame about an axis parallel to the axis of rotation of said auger;
wherein said leveling actuators are operable to adjust said support frame and said screed head between a screeding orientation and a cleaning orientation;
wherein, when in the screeding orientation, said leveling actuators extend and retract within an operating range to level said plow and said vibrating member by rotating said support frame about the axis parallel to the axis of rotation of said auger; and
wherein, responsive to actuation of a user input, said leveling actuators extend beyond the operating range to rotate said support frame to the cleaning orientation, and wherein said support frame rotates at least sixty degrees about the axis parallel to the axis of rotation of said auger when rotated to the cleaning orientation.
1 Assignment
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Accused Products
Abstract
A screeding system for use with a screeding machine during screeding of an uncured concrete surface includes a base unit, a support arm extending from the base unit, and an elevation frame disposed at an outer end of the support arm. The elevation frame comprises elevation actuators at opposite ends thereof. A screed head includes a support frame that is pivotally mounted at lower ends of the elevation actuators. The support frame supports an auger, a plow and a vibrating member. A pair of actuators extend and retract to rotate the support frame about an axis parallel to an auger axis. The actuators adjust the support frame and screed head between a screeding orientation and a cleaning orientation. Responsive to a user input, the actuators rotate the support frame to the cleaning orientation, whereby the support frame rotates at least 60 degrees about the axis.
22 Citations
21 Claims
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1. A screeding system for use with a screeding machine during screeding of an uncured concrete surface, said screeding system comprising:
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a base unit; a support arm extending from said base unit; an elevation frame disposed at an outer end of said support arm, wherein said elevation frame comprises elevation actuators at opposite ends thereof; a screed head comprising a support frame that supports an auger, a plow and a vibrating member, and wherein said auger, when operating, rotates about an axis of rotation; wherein said support frame is pivotally mounted at lower ends of said elevation actuators; wherein said screed head comprises a pair of leveling actuators that extend and retract to rotate said support frame about an axis parallel to the axis of rotation of said auger; wherein said leveling actuators are operable to adjust said support frame and said screed head between a screeding orientation and a cleaning orientation; wherein, when in the screeding orientation, said leveling actuators extend and retract within an operating range to level said plow and said vibrating member by rotating said support frame about the axis parallel to the axis of rotation of said auger; and wherein, responsive to actuation of a user input, said leveling actuators extend beyond the operating range to rotate said support frame to the cleaning orientation, and wherein said support frame rotates at least sixty degrees about the axis parallel to the axis of rotation of said auger when rotated to the cleaning orientation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A screeding system for use with a screeding machine during screeding of an uncured concrete surface, said screeding system comprising:
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a base unit; a support arm extending from said base unit; an elevation frame disposed at an outer end of said support arm, wherein said elevation frame comprises elevation actuators at opposite ends thereof; a screed head comprising a support frame that supports an auger, a plow and a vibrating member, and wherein said auger, when operating during a screeding operation, rotates about an axis of rotation; wherein said support frame is pivotally mounted at lower ends of said elevation actuators; wherein said elevation actuators extend and retract responsive to laser receivers to independently vertically adjust a respective end of said screed head during the screeding operation; wherein said screed head comprises leveling actuators each attached at a first end to a bracket at a lower end region of a respective one of said elevation actuators and attached at a second end to said support frame; wherein said brackets are fixedly attached at the lower end region of the respective elevation cylinders and wherein said brackets extend away from said elevation cylinders such that the first ends of said leveling cylinders are spaced from said elevation cylinders; wherein said leveling actuators extend and retract to rotate said support frame about an axis parallel to the axis of rotation of said auger and relative to said brackets and said elevation actuators and said elevation frame; wherein said leveling actuators are extendable and retractable to adjust said support frame and said screed head between a screeding orientation and a cleaning orientation; wherein, when in the screeding orientation, said leveling actuators extend and retract within an operating range to level said plow and said vibrating member by rotating said support frame about the axis parallel to the axis of rotation of said auger; and wherein, responsive to actuation of a user input, said leveling actuators extend beyond the operating range to rotate said support frame toward the cleaning orientation, and wherein said support frame rotates at least sixty degrees about the axis parallel to the axis of rotation of said auger when rotated to the cleaning orientation. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification