An agricultural metering device with a variable geometry meter roller is provided. The agricultural metering device includes a meter roller having a plurality of flutes. An aggregate cross sectional area of the flutes increases along a longitudinal axis of the meter roller.

The invention relates to a metering device (5) for granular material, in particular seeds and/or fertilizer, where the metering device (5) comprises a metering housing (9) having at least one inlet (8) and at least one outlet (11) for the granular material and two side walls (10) that are arranged spaced from one another, where a metering wheel (13) with end faces (13a) each pointing toward the side walls (10) is arranged between, firstly, the inlet (8) and, secondly, the outlet (11), and between the side walls (10), that are arranged spaced from one another, on a shaft and is connectable in a force-fit manner to the latter and can be driven to rotate by the shaft in a metering direction (D), where the metering wheel (13) is associated with blocking means (14) which are configured to block the metering wheel (13) against the transport of granular material in a direction opposite to the metering direction (D) from the inlet (8) to the outlet (11) and/or in the metering direction (D) from the outlet (11) to the inlet (8), and a plain wheel (15) is arranged at each end face (13a) of the metering wheel (13) and extends between the end face (13a) and the side wall (10) in an unfastened manner on the shaft, where a sealing element (16) is arranged on both sides between the respective end face (13a) of the metering wheel (13) and a side surface (15a) of the respective plain wheel (15) pointing toward this end face (13a).

An agricultural metering system includes multiple independently controllable sets of meter rollers. Each set of meter rollers includes at least one meter roller, each set of meter rollers is configured to rotate about a respective rotational axis, the rotational axes are generally perpendicular to a common plane, and the rotational axes are offset relative to one another in the common plane. The agricultural metering system also includes multiple meter boxes configured to receive agricultural product from a storage tank. Each set of meter rollers is disposed within a respective meter box, and each set of meter rollers is configured to meter the agricultural product from the storage tank. In addition, the agricultural metering system includes multiple distribution lines. Each distribution line is disposed downstream from a respective set of meter rollers and configured to receive the agricultural product output from the respective set of meter rollers.

A pre-metering system is provided for feeding different types of seed into a seed meter of a planter. The pre-metering system may include separate feeder wheels that are selectively rotated to deliver different types of seed from on-row storage into the seed meter at a given time. The feeder wheels may be supported by a feeder wheel carrier that may also support various wall and ramped structures, such as upright divider walls and sloped walls that maintain separation between the different types of seeds in the on-row storage and direct the different types of seed toward the individual feeder wheels.

A wheel for a lawn mower robot includes a structure in which grass seeds can be discharged during a rotation of the wheel. Accordingly, grass seeds are shown as the lawn mower robot travels while performing a lawn mowing task. Therefore, a task of mowing the lawn and a task of sowing seeds can be performed in a unified manner. Thus, the lawn can be managed more efficiently.

A sectioned metering system and method is provided. One metering system for distributing an agricultural product in a field includes a drive input and a rotary shaft assembly coupled to the drive input and configured to be driven in rotation by the drive input. The metering system also includes a first metering section driven by the rotary shaft assembly and at least two additional metering sections. Each additional metering section is selectively engageable to drive the respective additional metering section by the rotary shaft assembly. Each additional metering section is also selectively disengageable to interrupt driving of the respective additional metering section by the rotary shaft assembly while the first metering section remains driven.

A volumetric metering system for metering a product in an agricultural machine includes a roller element, a drive mechanism configured to rotationally drive the roller element to convey the product along a conveyance path to a product receiving component, and a guide element disposed on a side of the roller element. The guide element is configured to guide the product along the conveyance path, and is biased towards the roller element.

A metering apparatus for distributing an agricultural product in a field has a meterbox configured for association with a hopper for receiving agricultural product from the hopper. A rotatable metering element is disposed within a chamber in the meterbox, and the rotating metering element is configured to deliver the agricultural product at a regulated rate from the hopper through the chamber to a product distribution line. Delivery of the agricultural product to the product distribution line may be selectively stopped by a disengagement structure for disengaging the agricultural product from the meter roller while the meter roller continues to rotate. The disengagement structure may comprise the meter roller moveable between a lowered product engaging position and a raised product disengaging position.

A metering apparatus for distributing an agricultural product in a field has a meterbox configured for association with a hopper for receiving agricultural product from the hopper. A rotatable metering element is disposed within a chamber in the meterbox, and the rotating metering element is configured to deliver the agricultural product at a regulated rate from the hopper through the chamber to a product distribution line. Delivery of the agricultural product to the product distribution line may be selectively stopped by a reversibly inflatable seal between the metering element and an outlet to the distribution line, a reversible seal formed by contact between the metering element and an inlet from the hopper to the chamber, or a disengagement structure for disengaging the agricultural product from the metering element while the metering element continues to rotate.

An agricultural metering device with a variable geometry meter roller is provided. The agricultural metering device includes a meter roller having a plurality of flutes. An aggregate cross sectional area of the flutes increases along a longitudinal axis of the meter roller.