A spreading apparatus for spreading material onto a target area is disclosed. The spreading apparatus includes a container for the material, a discharge unit which discharges the material, a deflector door disposed on a discharge port of the discharge unit, a positioning device which positions the d
A spreading apparatus for spreading material onto a target area is disclosed. The spreading apparatus includes a container for the material, a discharge unit which discharges the material, a deflector door disposed on a discharge port of the discharge unit, a positioning device which positions the deflector door and a controller configured to control the deflector door so that the deflector door is positioned between a first closed position and a second open position. The material is substantially prevented from exiting through the discharge port when the deflector door is in the first position. The deflector door may further be positioned at a position between the first closed position and second open position to control a distance of the material discharged from the discharge port.
대표청구항▼
1. A spreader apparatus for spreading material onto a target area, comprising: a container including an opening which receives therein the material and an outlet through which the material is discharged;a discharge unit disposed adjacent to the outlet which discharges the material onto the target ar
1. A spreader apparatus for spreading material onto a target area, comprising: a container including an opening which receives therein the material and an outlet through which the material is discharged;a discharge unit disposed adjacent to the outlet which discharges the material onto the target area, the discharge unit including a housing with an inlet port and a discharge port;a primary door disposed in the discharge unit between the outlet of the container and the inlet port of the discharge unit;a deflector door disposed on the discharge port;a deflector door positioning device which positions the deflector door; anda controller configured to control the deflector door positioning device so that the deflector door pivots so as to be positioned at a first closed position, a second maximum open position or an intermediate position between the first closed position and the second maximum open position,wherein the deflector door substantially covers the discharge port when the deflector door is in the first position such that the material is substantially prevented from exiting through the discharge port. 2. The spreader apparatus as claimed in claim 1, wherein the deflector door includes a first portion and a second portion, a first end of the first portion is pivotably connected to the discharge port and a second end of the first portion is connected to a first end of the second portion of the deflector door such that the second portion extends from the second end of the first portion at a non-zero angle. 3. The spreader apparatus as claimed in claim 2, wherein a second end of the second portion of the deflector door, opposite the first end of the second portion of the deflector door, includes a lip which cooperates with a seal member on the discharge port to create a seal when the deflector door is in the first closed position. 4. The spreader apparatus as claimed in claim 3, wherein the lip of the deflector door is beveled. 5. The spreader apparatus as claimed in claim 1, wherein the deflector door positioning device is a linear actuator. 6. The spreader apparatus as claimed in claim 5, wherein the deflector door positioning device is a hydraulic cylinder. 7. The spreader apparatus as claimed in claim 6, wherein the hydraulic cylinder includes a piston, and a rod, and the rod is connected to the deflector door. 8. The spreader apparatus as claimed in claim 7, wherein the deflector door is in the first closed position when the hydraulic cylinder is extended and the deflector door is in the second maximum open position when the hydraulic cylinder is retracted. 9. The spreader apparatus as claimed in claim 8, wherein another hydraulic cylinder actuates the primary door between an open and closed position. 10. The spreader apparatus as claimed in claim 1, wherein the controller is configured to control a distance that the material discharged from the discharge port is deflected by the deflector door when the deflector door is positioned between the first position and the second position. 11. The spreader apparatus as claimed in claim 1, wherein the discharge unit includes a discharging device disposed inside the housing which discharges the material through the discharge port. 12. The spreader apparatus as claimed in claim 1, wherein the deflector door completely covers the discharge port when the deflector door is in the first position such that the material is prevented from exiting through the discharge port. 13. A method of spreading material, comprising: discharging material from a spreading apparatus;deflecting the discharged material with a pivotable deflector door such that a distance that the material is discharged from the spreading apparatus is based on a position of the pivoted deflector door; andcovering a discharge port of the spreader apparatus by pivoting the deflector door such that material is substantially prevented from exiting through the discharge port,wherein the spreading apparatus comprises: a container including an opening which receives therein the material and an outlet through which the material is discharged,a discharge unit disposed adjacent to the outlet which discharges the material onto the target area, the discharge unit including a housing with an inlet port and a discharge port, anda primary door disposed in the discharge unit between the outlet of the container and the inlet port of the discharge unit, andwherein the material is discharged by the discharge unit and an amount of material that enters the discharge unit is controlled by a position of the primary door. 14. The method according to claim 13, wherein a lip of the deflector door cooperates with a seal member on the discharge port to create a seal when the deflector door covers the discharge port. 15. The method according to claim 13, wherein the deflector door includes a first portion and a second portion, a first end of the first portion is pivotably connected to the discharge port and a second end of the first portion is connected to a first end of the second portion of the deflector door such that the second portion extends from the second end of the first portion at a non-zero angle.
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