Abstract: A single-grain seeder including a chassis that supports at least one seeding element including a dispensing housing, at least one opening disk for opening a furrow in the ground, and at least one depth control wheel, the dispensing housing delivering seeds one by one via a rotary dosing element configured to turn about a rotation axis, each seed being ejected from the rotary dosing element at an ejection point extending in a lower portion of the rotary dosing element. The ejection point is disposed in an external diameter of the opening disk, when viewed along the rotation axis of the rotary dosing element.

Abstract: An agricultural machine for working soil or for sowing seeds, including a trailed chassis and work elements distributed over a transverse beam including a central section including wheels and two side sections extending on either side of the central section during work, each end of the central section resting on the ground via a wheel. Each side section includes an extension arm and an intermediate arm, the extension arm is connected to the intermediate arm by a horizontal articulation with a substantially horizontal axis and is directed in a direction of advance at work and each intermediate arm is connected to the chassis via a vertical articulation and carries at least one work element.

Abstract: A distribution box for a single-seeder including a disc including radial grooves that are regularly spaced apart and open on a periphery of the disc, the disc being rotatably mounted on a horizontal axis and separating a seed reservoir from a suction device such that seeds are picked up from the reservoir by the disc via air flow by negative pressure and are held over at least part of their angular travel until they are expelled from a discharge opening. Each groove includes a suction hole smaller than a size of the seeds to be distributed, the suction hole emerging on a channel with a width smaller than the diameter of the suction hole, the channel being open up to the periphery of the disc. A single-seeder can include at least one distribution box.

Abstract: A device for a self-regulated pneumatic supply from a main reservoir containing product toward at least one auxiliary reservoir according to its filling rate, the supply device including a compressed air supply, a tilted duct connected to pipe connections, a bypass air duct having a first channel emerging near the outlet of the main reservoir and a second channel emerging near the inlet of the pipe connections to bring product to the auxiliary reservoir. At least one of the channels includes a sliding system for adjusting a passage section of air passing through one of the channels. The device can be applied to a seeder including such a supply device.

Abstract: A distribution machine including a supply device for a self-regulated pneumatic supply from a main reservoir containing product toward at least one auxiliary reservoir according to its filling rate via a respective tight duct, each auxiliary reservoir including an air exhaust device and a distribution unit for distributing the product including a supply chamber and a rotary regulating element. The air exhaust device is configured to extend substantially below an overflow spot of the supply chamber.

Abstract: A single-grain seeder including a chassis that supports at least one seeding element including a dispensing housing, at least one opening disk for opening a furrow in the ground, and at least one depth control wheel, the dispensing housing delivering seeds one by one via a rotary dosing element configured to turn about a rotation axis, each seed being ejected from the rotary dosing element at an ejection point extending in a lower portion of the rotary dosing element. The ejection point is disposed in an external diameter of the opening disk, when viewed along the rotation axis of the rotary dosing element.

Abstract: A distribution machine including a supply device for a self-regulated pneumatic supply from a main reservoir containing product toward at least one auxiliary reservoir according to its filling rate via a respective tight duct, each auxiliary reservoir including an air exhaust device and a distribution unit for distributing the product including a supply chamber and a rotary regulating element. The air exhaust device is configured to extend substantially below an overflow spot of the supply chamber.

Abstract: A device for a self-regulated pneumatic supply from a main reservoir containing product toward at least one auxiliary reservoir according to its filling rate, the supply device including a compressed air supply, a tilted duct connected to pipe connections, a bypass air duct having a first channel emerging near the outlet of the main reservoir and a second channel emerging near the inlet of the pipe connections to bring product to the auxiliary reservoir. At least one of the channels includes a mean preset for adjusting a passage section of air passing through one of the channels. The device can be applied to a seeder including such a supply device.

Abstract: An agricultural machine for working soil or for sowing seeds, including a trailed chassis and work elements distributed on a longitudinal bar in plural sections, the longitudinal bar including at least two primary beams extending substantially transversely to a direction of advance in a work configuration. A secondary beam is connected to each primary beam by two connection devices, the secondary beams support the work elements, and each secondary beam rests on the soil by two support wheels and is configured to move freely during work to follow a profile of the terrain.

Abstract: A supply device for a single seeder via a flow of air from a main reservoir containing product to at least one auxiliary reservoir depending on its filling rate, each auxiliary reservoir being connected to the main reservoir by a respective leak-tight duct, the number of auxiliary reservoirs corresponding to the number of distributors of the single seeder. A regulating system is associated with each auxiliary reservoir and the regulating system has a sensor for detecting the level of product and a valve for regulating the flow of air in the corresponding auxiliary reservoir. A single seeder using a supply device according to the invention.

Abstract: A distribution box for a single-seeder including a disc including radial grooves that are regularly spaced apart and open on a periphery of the disc, the disc being rotatably mounted on a horizontal axis and separating a seed reservoir from a suction device such that seeds are picked up from the reservoir by the disc via air flow by negative pressure and are held over at least part of their angular travel until they are expelled from a discharge opening. Each groove includes a suction hole smaller than a size of the seeds to be distributed, the suction hole emerging on a channel with a width smaller than the diameter of the suction hole, the channel being open up to the periphery of the disc. A single-seeder can include at least one distribution box.

Abstract: An agricultural machine for working soil or for sowing seeds, including a trailed chassis and work elements distributed over a transverse beam including a central section including wheels and two side sections extending on either side of the central section during work, each end of the central section resting on the ground via a wheel. Each side section includes an extension arm and an intermediate arm, the extension arm is connected to the intermediate arm by a horizontal articulation with a substantially horizontal axis and is directed in a direction of advance at work and each intermediate arm is connected to the chassis via a vertical articulation and carries at least one work element.

Abstract: An agricultural machine for working soil or for sowing seeds, including a trailed chassis and work elements distributed on a longitudinal bar in plural sections, the longitudinal bar including at least two primary beams extending substantially transversely to a direction of advance in a work configuration. A secondary beam is connected to each primary beam by two connection devices, the secondary beams support the work elements, and each secondary beam rests on the soil by two support wheels and is configured to move freely during work to follow a profile of the terrain.

Abstract: A single seeder with a foldable chassis composed of a central section arranged transversely with respect to the direction of work and of two lateral sections articulated on the central section, seeder elements being distributed in a regular manner on the chassis, the seeder including burying coulters for the distribution of product extending at the front of a respective seeder element, a distribution head and pipes connected on the distribution head and ending at the burying coulters. The distribution head is arranged at the rear of the seeder, behind the seeder elements, taking into account the direction of advance.

Abstract: A supply device for a single seeder via a flow of air from a main reservoir containing product to at least one auxiliary reservoir depending on its filling rate, each auxiliary reservoir being connected to the main reservoir by a respective leak-tight duct, the number of auxiliary reservoirs corresponding to the number of distributors of the single seeder. A regulating system is associated with each auxiliary reservoir and the regulating system has a sensor for detecting the level of product and a valve for regulating the flow of air in the corresponding auxiliary reservoir. A single seeder using a supply device according to the invention.

Abstract: A seeder including a chassis including a substantially horizontal transverse beam on which seeding elements are distributed in a regular manner, the transverse beam including a central section and two lateral sections arranged on either side of the central section in a work position, and being raised substantially above the central section in a transport position, each lateral section being connected to the chassis by a respective arm and being displaceable transversely and vertically with respect to the chassis by a deformable mechanism controlled by an operating jack. In the seeder one deformable mechanism is offset with respect to the other deformable mechanism, taking into account a direction of advance.

Abstract: A single seeder with a foldable chassis composed of a central section arranged transversely with respect to the direction of work and of two lateral sections articulated on the central section, seeder elements being distributed in a regular manner on the chassis, the seeder including burying coulters for the distribution of product extending at the front of a respective seeder element, a distribution head and pipes connected on the distribution head and ending at the burying coulters. The distribution head is arranged at the rear of the seeder, behind the seeder elements, taking into account the direction of advance.

Abstract: A seeder including a chassis including a substantially horizontal transverse beam on which seeding elements are distributed in a regular manner, the transverse beam including a central section and two lateral sections arranged on either side of the central section in a work position, and being raised substantially above the central section in a transport position, each lateral section being connected to the chassis by a respective arm and being displaceable transversely and vertically with respect to the chassis by a deformable mechanism controlled by an operating jack. In the seeder one deformable mechanism is offset with respect to the other deformable mechanism, taking into account a direction of advance.

Abstract: A seed drill comprising at least one metering device driven by a mechanism equipped with an input shaft, with a pinion and with a control handle. The seed drill is notable in that the control handle is connected in terms of rotation to the input shaft. The seed drill makes it easier to check the operation of the metering device.

Abstract: The present invention relates to a seed drill comprising at least one metering device driven by a mechanism equipped with an input shaft, with a pinion and with a control handle. The seed drill is notable in that the control handle is connected in terms of rotation to the input shaft. The present invention makes it easier to check the operation of the metering device.