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US 2026/0274414 A1Published application
Drone, and conveying device for use in a drone
AssigneeLEHNER Maschinenbau GmbH
InventorsRalf HUEBNER, Michael STOCKER
Life of this patent
Estimating the term…
Abstract
A drone for spreading material to be scattered for agriculture or forestry, in particular meterable pellets to be scattered, seeds or fertilizer, includes a storage hopper which receives the material to be scattered which passes via a conveyor into a cell wheel metering device which is arranged above a spreading disk and feeds the material to be scattered to the latter in a metered manner via a conveyor funnel, with the result that material to be scattered leaves the drone in a metered manner via the rotating spreading disk.
Claims10
1:
- A drone for spreading material to be scattered for agriculture or forestry, in particular meterable pellets to be scattered, seeds or fertilizer, which comprises a storage hopper (4) which receives the material to be scattered which passes via a conveying means (20) into a cell wheel metering device (22) which is arranged above a spreading disk (12) and feeds the material to be scattered to the latter in a metered manner via a conveyor funnel (10), with the result that material to be scattered leaves the drone in a metered manner via the rotating spreading disk (12).
2:
- The drone according to claim 1, wherein the cell wheel metering device (12) is segmented into a plurality of cell wheels (28) along a cell wheel axis.
3:
- The drone according to claim 2, in which the cell wheels (28) are interchangeable for changing the delivery of the material to be scattered or for changing the spreading pattern and in which the cell wheels (28) are replaceable by cell wheels (28) of different shapes and sizes or by non-functional placeholders.
4:
- The drone according to claim 2, in which the cell wheel axis is arranged perpendicularly or in an angular range of ±30° to an axis of rotation (42) of the spreading disk (12) and the cell wheels (28) can span the spreading disk (12) on both sides of the axis of rotation (42) at least in portions.
5:
- The drone according to claim 1, wherein the cell wheel metering device (22) can be removed via a cover (18) attachable to a housing wall (8), wherein the cover (19) is fastened to the housing wall (8) with a quick-release fastener (19).
6:
- The drone according to claim 1, wherein the spreading disk (12) can be detached from the axis of rotation (42) without tools, preferably via a bayonet lock.
7:
- The drone according to claim 1, in which the conveyor funnel (10) is designed in an interior of the conveyor funnel (10) with inclined surfaces which are dimensioned with respect to their inclination to an axis of rotation (42) of the spreading disk (12) such that material to be scattered of different sizes can pass through the conveyor funnel (10).
8:
- The drone according to claim 1, in which the conveyor funnel (10) opens from an inlet portion (38) below the cell wheel metering device (22) into two tubular funnel portions (40) which are arranged on either side of the axis of rotation (42) of the spreading disk (12).
9:
- The drone according to claim 1, in which at least the spreading disk (12), the conveyor funnel (10) and the cell wheels (28) are made of plastics material, preferably in a 3D printing process.
10:
- A cell wheel metering device for use in a drone, which is segmented into a plurality of cell wheels (28) along a cell wheel axis, wherein the cell wheels (28) are interchangeable to change the dispensing of the material to be scattered or to change the spreading pattern and can be replaced by cell wheels (28) of different shapes and sizes or by non-functional placeholders.