Abstract: An agricultural roller comprises a tubular support and a series of pneumatic tyres mounted on the support. Each pneumatic tyre of the series has a respective uninflated envelope. The roller further comprises a series of tyres mounted on the support and interleaved in the series of pneumatic tyres. Each tyre has a respective envelope. The tyres are smaller than the pneumatic tyres while their envelope is narrower.

Abstract: An agricultural tool includes a wheel body and a flexible tyre with a hollow chamber and an inner surface around this hollow chamber; a circular opening on the chamber; a pair of beads bordering this opening; and a spacer at least partially tubular with two axially opposite end faces. Over one portion corresponding to one of the beads, the inner surface extends frustoconically by widening radially outward of the flexible tyre, and one of the end faces of the spacer has an axially protruding surface. The spacer is placed across the opening of the tyre such that the protruding surface engages the inner surface in an area of the portion corresponding to the bead.

Abstract: An agricultural wheel includes a body including a rim, and a semi-hollow-type tire including a flexible case including a sheath and a tread. The rim includes a seat section, suitable for receiving the tire, and a tool section, suitable for scraping the seed drill disc. The tread has a profile domed towards the outside of the tire. The case includes a first sidewall, close to the tool section, connecting the sheath to the tread. The sidewall extends radially or slightly inclined radially. The rim includes an intermediate axial section which connects the tool section to the seat section. The intermediate section is shaped as an axial stop for the tire which is form fitted with the first sidewall. The tire is mounted on the seat section by means of the sheath in an axially stressed state which maintains the first sidewall in contact against the stop.

Abstract: An agricultural tool element includes a non-inflated tire with a tread and a pair of sidewalls each connected to the tread at a respective first end portion. The element additionally includes a rigid, generally annular base on which the tire is fitted on a rotary support of an agricultural tool. The sidewalls are each over-molded on a peripheral portion of the rigid base at a second end portion, opposite the tread.

Abstract: A press wheel comprises a rigid body and a semi-tubular tire. The tire comprises a flexible envelope with a sole portion through which the tire is mounted on the rigid body, a tread portion and a pair of sidewalls each one connecting the sole to the tread. The sidewalls extend, at least partially, along a generally concave profile, viewed from the exterior of the tire.

Abstract: A non-inflatable tire for an agricultural implement, including a sole, a tread, and a pair of sidewalls connecting the sole to the tread is provided. A first sidewall extends from the sole to the tread, while the second includes an internal portion which extends from the sole to the tread and an external portion projecting from the tread. The first sidewall and the tread are designed so as to jointly hold the external portion of the second sidewall in line with the internal portion.

Abstract: An agricultural roller comprises a tubular support and a series of pneumatic tyres mounted on the support. Each pneumatic tyre of the series has a respective uninflated envelope. The roller further comprises a series of tyres mounted on the support and interleaved in the series of pneumatic tyres. Each tyre has a respective envelope. The tyres are smaller than the pneumatic tyres while their envelope is narrower.

Abstract: An agricultural tool used to form furrows includes a generally cylindrical support and a plurality of tires. Each tire includes a sole by way of which the tire is mounted on the support, a tread opposite the sole (3) and two sidewalls that connect the tread to the sole. The sole, the tread (5) and the sidewalls jointly form a deformable casing. The tread of at least one of the plurality of tires has a generally domed shape. The sidewalls of this tire are generally inclined radially. The domed shape of the tread and the inclination of the sidewalls are such that the deformation of the casing urges the sole axially outward.

Abstract: A wheel for working the fields comprises a wheel body comprising a pair of flanges and a spacer, and a tire cover, generally annular, comprising two side walls, a tread connecting the side walls to one another and an opening opposite to the tread. The tire cover is mounted on the wheel body in such a way that the spacer is positioned across its opening. The flanges are arranged in such a way as to block the side walls of the tire cover against the spacer in the vicinity of the opening.

Abstract: An agricultural machine tool includes a wheel body which includes a hub, a rim and at least two arms which each connect the hub and the rim to each other. At least one aperture is provided between the two arms and the rim, and has a closed contour. The tool includes a component which forms an accessory having a profiled portion having a shape which generally corresponds to the closed contour, and a generally superficial portion which terminates the profiled portion. The profiled portion is introduced at one side of the wheel body into the aperture, closing the aperture by form-fitting cooperation. A set of fixing members ensures the retention of the component in a final position, in which the superficial portion moves into a flush state with the arms, at least in the region of the contour.

Abstract: Pneumatic tire 1 for an agricultural machine, having an axis of revolution XX and comprising a tread 7, a sole 11 situated opposite the tread 7, and two sidewalls 13, 15 connecting the tread 7 to the sole 11. The tread 7, the sole 11 and the two sidewalls 13, 15 together form a casing 17 defining a chamber 19 inside the pneumatic tire 1. At least one of the sidewalls 13, 15 comprises, in this order and in succession in a direction oriented radially from the axis of revolution XX to the outside, a proximal portion 131, an intermediate portion 133 and a distal portion 135. In the unloaded state, the intermediate portion 133 projects into the chamber 19 in a direction substantially parallel to the axis of revolution XX.

Abstract: The semi-hollow pneumatic tire has an axis of revolution and comprises a sole mountable on the periphery of a rotary support, a tread opposite the sole, and two sidewalls each connecting the sole and the tread so as to form together a cover which defines an uninflated chamber inside the pneumatic tire. The tread has a concave profile according to a plane passing through the axis of revolution, and the pneumatic tire comprises two annular ridges which extend, respectively, the two sidewalls in the outer radial direction and which are connected to two opposite ends of the tread, the two annular ridges defining, respectively, two principal directions which intersect at an acute angle so that, when the pneumatic tire comes into contact with soil, by being subjected to a vertical load, the two annular ridges move closer together locally.

Abstract: A tool for working in fields includes a first flange and a second flange which mount one on the other, forming a wheel body. The first flange includes a central portion, a generally annular peripheral portion and at least one arm which connect(s) the central portion and the peripheral portion to each other. The second flange is homologous to the peripheral portion of the first flange. In the assembled state, the wheel body has a rim which is formed together by the peripheral portion of the first flange and the second flange and a hub which is formed by the central portion of the first flange.

Abstract: An agricultural tool element (3) comprises a non-inflated tire (9) with a tread (9-1) and a pair of sidewalls (9-2) each connected to the tread (9-1) at a respective first end portion. The element (3) additionally comprises a rigid, generally annular base (7), by means of which the tire (9, 103) is fitted on a rotary support (2, 101) of an agricultural tool. The sidewalls (9-2) are each over-molded on a peripheral portion of the rigid base (7, 107) at a second end portion, opposite the tread (9-1).

Abstract: A tire for a furrow press roller comprises a sole via which the tire is mounted on a field roller support, a tread opposite to the sole, and two sidewalls connecting the tread to the sole. The sole, the tread and the sidewalls together delimit a non-inflatable chamber. The tread comprises at least one crest and two shoulders each connecting the crest to a respective sidewall. The chamber extends partially at least laterally under the shoulders and radially into the crest.

Abstract: A tool for working in fields includes a first flange and a second flange which mount one on the other, forming a wheel body. The first flange includes a central portion, a generally annular peripheral portion and arms which connect the central portion and the peripheral portion to each other. The second flange is homologous to the first flange. In the assembled state, the wheel body has a rim which is formed together by the peripheral portion of the first flange and the homologous peripheral portion of the second flange and a hub which is formed by the central portion of the first flange. The central portion of the second flange receives the hub which is formed by the central portion of the first flange.

Abstract: An agricultural implement comprises a wheel body with a peripheral groove, a tire with a bead projecting radially inward, and a radial lock which locks the tire around the wheel body. The bead is shaped so as to be housed in the groove when the tire is mounted around the wheel body. The radial lock comprises a first aperture formed in the wheel body, opening into the groove on the one hand and onto a main face of the wheel body on the other hand, at least a second aperture formed in the bead of the tire, opening substantially facing the first aperture, and a pin placed in the first aperture and the second aperture.

Abstract: A tire for a furrow press roller comprises a sole via which the tire is mounted on a field roller support, a tread opposite to the sole, and two sidewalls connecting the tread to the sole. The sole, the tread and the sidewalls together delimit a non-inflatable chamber. The tread comprises at least one crest and two shoulders each connecting the crest to a respective sidewall. The chamber extends partially at least laterally under the shoulders and radially into the crest.