Sand dispenser for a scarifier
First Claim
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1. A sand dispenser for a scarifier wherein the sand dispenser is mounted on the scarifier and comprises:
- a sand hopper having an outlet at a lower end of the hopper; and
a gate located below the outlet and moveable between an open position and a closed position for controlling the flow of sand through the hopper and into a distributor, the distributor including a row of distributing lines through which sand is directed to flow and enter grooves in the ground created by blades of the scarifier, each distributing line being aligned with a groove,wherein the gate is a metering cylinder having a row of apertures which, when aligned with the hopper outlet, permit sand to flow therethrough, the metering cylinder being rotatable between the open and closed positions; and
wherein movement of the gate is carried out by movement of a rotor assembly which supports the blades of the scarifier, whereby lowering of the rotor assembly to engage the blades with the ground opens the gate, and raising the rotor assembly closes the gate.
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Abstract
A sand dispenser for a scarifier wherein the sand dispenser is mounted on the scarifier and comprises: a sand hopper having an outlet at a lower end of the hopper; a gate located below the outlet and moveable between an open position and a closed position for controlling the flow of sand through the hopper and into a distributor, the distributor including a row of distributing lines through which sand is directed to flow and enter grooves in the ground created by blades of the scarifier, wherein each distributing line is aligned with a groove.
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Citations
19 Claims
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1. A sand dispenser for a scarifier wherein the sand dispenser is mounted on the scarifier and comprises:
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a sand hopper having an outlet at a lower end of the hopper; and a gate located below the outlet and moveable between an open position and a closed position for controlling the flow of sand through the hopper and into a distributor, the distributor including a row of distributing lines through which sand is directed to flow and enter grooves in the ground created by blades of the scarifier, each distributing line being aligned with a groove, wherein the gate is a metering cylinder having a row of apertures which, when aligned with the hopper outlet, permit sand to flow therethrough, the metering cylinder being rotatable between the open and closed positions; and wherein movement of the gate is carried out by movement of a rotor assembly which supports the blades of the scarifier, whereby lowering of the rotor assembly to engage the blades with the ground opens the gate, and raising the rotor assembly closes the gate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. The sand dispenser for a scarifier wherein the sand dispenser is mounted on the scarifier and comprises:
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a sand hopper having an outlet at a lower end of the hopper; and a gate located below the outlet and moveable between an open position and a closed position for controlling the flow of sand through the hopper and into a distributor, the distributor including a row of distributing lines through which sand is directed to flow and enter grooves in the ground created by blades of the scarifier, each distributing line being aligned with a groove, wherein the gate is a metering cylinder having a row of apertures which, when aligned with the hopper outlet, permit sand to flow therethrough, the metering cylinder being rotatable between the open and closed positions; and wherein the distributing lines include a distributing tube and a guide located at the end of the tube wherein, in use, the guide protrudes into the groove, the tube tapers from a circular cross-section at an upper part of the tube to an elliptical cross-section at the end of the tube, and the end of the tube is cut at an angle to the longitudinal direction of the tube in order to facilitate free flow of sand into the groove. - View Dependent Claims (12, 13, 14)
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15. A scarifier containing a main frame supported on wheels, a rotor assembly supporting blades wherein the rotor assembly is moveable between a raised position and a lowered position, driving means to drive rotation of the blades, and a sand dispenser comprising:
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a sand hopper having an outlet at a lower end of the hopper; and a gate located below the outlet and moveable between an open position and a closed position for controlling the flow of sand through the hopper and into a distributor, the distributor including a row of distributing lines through which sand is directed to flow and enter grooves in the ground created by blades of the scarifier, each distributing line being aligned with a groove, wherein the gate is a metering cylinder having a row of apertures which, when aligned with the hopper outlet, permit sand to flow therethrough, the metering cylinder being rotatable between the open and closed positions. - View Dependent Claims (16, 17)
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18. A method of dispensing sand from a sand dispenser mounted on a scarifier including:
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introducing sand into a sand hopper of the sand dispenser; lowering a rotor assembly, which supports blades of the scarifier, so that the blades engage with the ground; rotating open a metering cylinder located below the hopper, the metering cylinder having a row of apertures that align with a hopper outlet to allow sand to flow through the hopper outlet, through the metering cylinder and into a distributor; synchronizing the opening of the metering cylinder with movement of lowering the rotor assembly; and directing sand through a row of distributing lines of the distributor and into grooves in the ground created by the blades of the scarifier, whereby each distributing line is aligned with a groove. - View Dependent Claims (19)
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Specification