• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A tire (1) for a roller follower comprises a sole (3) through which the tire (1) is mounted on a support (2) of agricultural roller, a tread (5) opposite the sole (3). ), and two sidewalls (7; 9) connecting the tread (5) to the sole (3). The sole (3), the tread (5) and the flanks (7; 9) jointly define a non-inflatable chamber (11). The tread (3) comprises at least one ridge (51) and two shoulders (53; 55) each connecting the ridge (51) to a respective side (7; 9). The chamber (11) extends at least partially laterally under the shoulders (53; 55) and radially in the ridge (51).
    公开号:FR3038490A1
    申请号:FR1556600
    申请日:2015-07-10
    公开日:2017-01-13
    发明作者:Olivier Phely
    申请人:Otico SAS；
    IPC主号:
    专利说明:

    The invention relates to a furrow tire, in particular intended to be mounted on an agricultural roller.
    To form furrows in earthen fields, an elongated roll is generally used which is moved across the field. Such a tool is sometimes referred to as a "furrowing roll" in the art. The roll comprises an elongate cylindrical support and a plurality of pneumatic tires mounted next to one another on the carrier, each tire working in a respective groove.
    Each tire conventionally comprises a sole portion, through which the tire is mounted on the cylindrical support, a tread portion, through which the tire is in contact with the bottom of the groove and two parts. forming flanks each connecting the tread to the sole.
    French Patent Application No. 52687 filed March 30, 2015 in the name of the Applicant describes a tire furrow. The tread extends over a reduced portion of the width of the tire, at the radial end thereof. The flanks are formed as an extension of the tread. They are connected to the sole. The flanks have an inclination that varies little and substantially continuously from the tread to the sole. These tires have a radial section in the general shape of an equilateral triangle. The top of this triangle corresponding to the radial end of this tire is rounded. These tires make it possible to work the soil efficiently. They have good self-cleaning capabilities. In addition, the holding against each other of the tires is effective over time.
    These tires make it possible to form grooves close to each other. In other words, the strip of land between two neighboring furrows is narrow. The depth of penetration of the tread in the ground strongly depends on the properties of the latter, such as its composition, its compactness, its humidity.
    To create grooves spaced apart from each other, spacers may be interposed between the tires. The ability of the roller to self-clean is degraded. The earth tends to accumulate on the spacers because of their rigidity.
    In addition, the spacers generally have an outer surface of cylindrical shape. As a result, the strip of land between two furrows is flattened. The invention aims to improve the situation.
    The Applicant proposes for this purpose a tire for a roller follower of the type comprising: - a sole through which the tire is mounted on an agricultural roller support, - a tread opposite to the sole, and - two flanks connecting the tread to the sole.
    The sole, the tread and the flanks jointly defining a non-inflatable chamber. The tread comprises: at least one ridge-shaped portion, and two shoulder portions each connecting the ridge-shaped portion to a respective sidewall.
    The chamber extends at least partially laterally under the shoulder portions and radially in the ridge-shaped portion.
    The proposed tire has a tread and a large active surface. It allows to work the hollow part of a furrow, the edges of it and the strip of earth between two neighboring furrows. In operation, the ridge-shaped portion is movable relative to the sole while the tread shoulders deform. Take off of the ground is effective over a large part of the width of the tire. In particular, the areas of lower tire heights, that is to say the shoulders that shape the portion of land between two furrows, are cleaned continuously and dirty little. In most working conditions, a scraper becomes superfluous. The tool may have the following optional features, alone or in combination with each other: - The shoulder portions have a generally convex shape. The shoulders flex outward during operation. The evacuation of the earth is facilitated. - An outer surface of the peak-shaped portion carries at least one relief element. The tire and the roller which is equipped with it then have better grip in rotation with the ground. The risks of rotational locking are reduced, especially when the ground is heavy or sticky and when cornering. - The sole and / or the tread comprise at least one portion projecting into the chamber, under the shoulder portions, so as to limit by abutment bringing the sole and the tread. The sagging stroke of the tread towards the running soleplate is precisely adjusted. - At least one of the flanks has a frustoconical lateral surface. A difference in axial prestressing appears between the tread and the sole. Thus, the treads of two adjacent tires can be held firmly towards each other to improve the continuity of the outer surface of the roller while the soles have an axial mobility favorable to the absorption of forces, especially in bends . - At least one of the two shoulder portions is connected to a respective sidewall so that the general direction of the shoulder portion and the general direction of the respective sidewall form an angle of between 90 ° and 135 °. This range makes it possible to urge the flanks laterally outwards during the slump of the tread while allowing good deformation and good self-cleaning and preventing the shoulder from forming a fold or curl involuntarily in use. which would be detrimental to self-cleaning, to the shape of the groove created and to the wear of the tire. - The peak-shaped portion has inclined faces so that the general direction of each of the sections forms an angle between 0 ° and 45 ° relative to a radial direction. An angle of less than 45 ° ensures good soil penetration, even when the soil is hard or dry. At least one of the two shoulder portions is connected to the ridge-shaped portion so that the general direction of the shoulder portion and the general direction the ridge-shaped portion form an angle of between 90 °; and 120 °. This angular domain makes it possible to limit the accumulation of soil and facilitate its sliding and evacuation. Folding the crest against the shoulder is avoided. Degradation of the tire by soil is limited. Good independence of dynamic behavior between the shoulders and the ridge is ensured. The ridge is in substantially radial motion with little deformation while the shoulders have a bending motion and a deformation which facilitates the take-off of the earth. - The peak-shaped portion extends radially beyond the shoulder portions to a height of between 30 and 120 millimeters. Such a range of values makes it possible to form a groove deep enough so that it can not be filled with debris or dust while resisting self-collapse and erosion. - The width ratio over which the peak-shaped portion extends over the total width of the tire is between 15% and 70%. Beyond this range, the good penetration of the ridge into the ground is compromised, either because the soil resistance is too great, or because the ridge tends to bend before entering the ground.
    According to another aspect of the invention, the Applicant proposes a furrow roller comprising a support and at least one tire as defined above which is mounted on the support.
    The present invention will be better understood on reading the detailed description of some embodiments taken as non-limiting examples and illustrated by the accompanying drawings in which: - Figure 1 shows a perspective view of a portion of a roll equipped with tires according to the invention; Figure 2 shows a side view of the roll portion of Figure 1; - Figure 3 shows a front view and partially in section of the roller portion of Figure 1; FIG. 4 shows a detail of FIG. 3; - Figure 5 shows a sectional view of a tire according to the invention in the disassembled state; FIG. 6 shows a perspective view of a tire according to the invention; - Figure 7 shows a sectional view of the tire of Figure 6; FIG. 8 shows a perspective view of a tire according to the invention; - Figure 9 shows a sectional view of the tire of Figure 8; FIG. 10 shows a perspective view of a tire according to the invention; - Figure 11 shows a sectional view of the tire of Figure 10; FIG. 12 shows a perspective view of a tire according to the invention; - Figure 13 shows a sectional view of the tire of Figure 12; FIG. 14 shows a perspective view of a tire according to the invention; - Figure 15 shows a sectional view of the tire of Figure 14; FIG. 16 shows a perspective view of a tire according to the invention; and - Figure 17 shows a sectional view of the tire of Figure 16.
    The drawings and the description below contain, for the most part, elements of a certain character. They can therefore not only serve to better understand the present invention, but also contribute to its definition, if any. It is noted that elements such as the profile geometry of a tire are difficult to completely define, other than by drawing.
    Reference is made to Figures 1 to 3.
    They show a portion of an agricultural roller for the formation of furrows. The roll is what is known as a furrowing roll in the art. The roller comprises a support 2 generally cylindrical and elongate, and a plurality of tires 1 threaded onto the support 2. The tires 1 are arranged next to each other in the longitudinal direction of the support 2. The tires 1 are distributed longitudinally a way which corresponds to what is called the entre-rang in the technique, that is to say the spacing between two adjacent grooves. Here, the tires are in contact with each other.
    The tires 1 are axially clamped, in the longitudinal direction of the support 2. At each of its ends, not shown here, the roller comprises a flange, or plays, fixed to the support 2. The axial clamping of the tires 1 is maintained by the flanges .
    The roller is intended to be rotatably mounted about its longitudinal axis, for example on the chassis of an agricultural machine.
    Each tire 1 has a generally annular shape with a central axis 100. Each tire 1 has a median plane 200 perpendicular to the central axis 100. In the mounted state, the central axis 100 of each tire 1 is substantially merged with the tire 1. longitudinal axis of the support 2.
    Each tire 1 has a generally symmetrical shape with respect to its median plane 200.
    The tires 1 are constrained in the longitudinal direction of the support 2. In the mounted state, the width of a tire 1 is less than the width of the tire 1 in the free state, for example about 5%. In the example described here, the width 101 in the mounted state of the tire 1 is about 150 millimeters while the width at rest of this tire 1 is about 157 millimeters. The flanges of the support 2 maintain this state of stress at the end of the assembly and in operation. After assembly and out of operation, the stress state of the tires 1 is substantially uniform over the width of the roll.
    Reference is made to FIGS. 4 and 5. They each show the profile of a tire 1.
    The tire 1 comprises a sole portion 3, a tread portion 5 and two flank portions 7 and 9 which each connect the tread 5 to the sole 3. The sole 3 and the tread 5 each have a tread. generally annular shape. In work, the band 5 rolls on the ground forming a furrow. The tread 5 touches both the bottom of the groove, the side walls thereof and at least part of the strips of land separating it from adjacent grooves.
    The sole 3, the tread 5 and the sidewalls 7, 9 together form an envelope of the tire 1 around a chamber 11. The casing is substantially uniform around the circumference of the tire 1.
    The tire 1 is mounted on the support 2 by the sole 3.
    The sole 3 has a seat surface 31 of shape corresponding to an outer surface of the support 2. Each of the sidewalls 7, 9 has a lateral surface 33 intended to come into contact with a respective bearing surface. This bearing surface may be: - a lateral surface of a tire 1 mounted adjacent to the support 2, - a face of a spacer mounted adjacent the tire 1 on the support 2, - a face of a flange of the support 2.
    The tire 1 is mounted axially tightly. It is crushed in width, that is to say in its axial direction. The tires 1 are fitted with a prestress.
    This axial clamping limits the penetrations of soil and / or debris between the adjacent lateral surfaces 33 of tires 1.
    In the embodiment of Figure 4, the side surfaces 33 are substantially flat, in the free state as in the prestressed state (shown in Figure 4). The lateral surfaces 33 extend substantially parallel to the median plane 200.
    In the embodiment of Figure 5, the side surfaces 33 are substantially frustoconical in the free state (shown in Figure 5). Viewed in radial section, the lateral surfaces 33 are inclined relative to the median plane 200. The width of the tread 5 is greater than the width of the sole 3, so that the section of the tire has a generally trapezoidal shape. When the tire 1 is axially prestressed, the lateral surfaces 33 bear against each other and adopt a planar or quasi-planar configuration. By the effect of the elastic return of the tire 1, the further one moves away from the central axis 100, the more the clamping force between two tires 1 increases.
    The inclined shape of the lateral surfaces 33 and the large axial clamping at the level of the treads 5 preserves the continuity of the outer surfaces of the roll when it is subjected to significant axial stresses, for example when it is turning. The risk of inadvertent insertion of soil or debris between two tires 1 is further reduced. The lower tightening between the adjacent soles 3 allows a slight sliding of the tires 1 around the support 2, especially when turning. The behavior of the roll is more flexible. The risk of tire damage is reduced. If soil and / or debris are inserted between two side surfaces 33, they tend to be driven radially, outward or inward, thanks to the inclination of these surfaces. The presence of soil and / or debris near the support 2, under the tread 5, is less harmful than between two treads 5 where it may degrade active parts of the tires 1. The continuity of the outer surface roll is preserved. Self-cleaning is further improved.
    The sole 3 has an inner surface 35 opposite to the seat surface 31. The inner surface 35 extends substantially between the sidewalls 7, 9.
    The tread 5 comprises at least one ridge-shaped portion 51 and two shoulder portions 53, 55.
    Here, the tread 5 comprises a ridge 51 and two shoulders 53, 55 each connecting the ridge 51 to a respective sidewall 7, 9. Crest 51 includes an apex 59 connected respectively to one and the other of the shoulders 53, 55 by portion portions 57.
    Here, the ridge 51 is centered on the median plane 200. The shoulders 53, 55 are symmetrical to each other with respect to the median plane 200.
    Alternatively, the tread 5 comprises a plurality of peaks, for example two ridges symmetrical to each other with respect to a median plane. The ridges are adjacent to each other. The shoulders 53, 55 connect the two axial end peaks to the sidewall 7, 9 respectively by a shoulder 53, 55 respectively. Such a tire then forms as many furrows as ridges 51 over its working width.
    The tread 5 has an inner surface delimiting the chamber 11. This surface is divided into several portions, including a portion of inner ridge surface 71 and two inner surface portions of shoulders 73.
    In the examples described here, the inner surfaces of the tread 5 comprise first protruding portions 75 in the chamber 11, here between the inner ridge surface 71 and each of the inner surfaces of the shoulders 73. The inner surface 35 of the sole 3 carries second protruding portions 77 in the chamber 11 facing the projections 75 of the tread 5. In operation, the tread 5 partially sags towards the sole 3. Each projection 75 abuts against a protrusion 77 so that the sagging stroke is limited. The projections 75 of the tread 5 are formed, here, substantially in the extension of the sections 57 of the peak 51. Such a configuration facilitates the manufacture of the tires 1. The envelope is devoid of local extra thickness. Each piece of material is positioned a short distance from an inner or outer surface of the envelope. When heating the elastomer by contact with a mold and thermal conduction, the temperature of the material is rapidly homogenized throughout the casing. The manufacturing time is reduced.
    In the embodiment of Figure 4, the projections 75, 77 have similar shapes to each other. Their width, that is to say their dimension in the axial direction, is reduced. In the embodiment of Figure 5, the projections 75 of the tread 5 have small widths while the projections 77 of the sole 3 have different shapes of large width. A difference in width between a projection 75, 77 and the corresponding projection 77, 75 allows the projections 75, 77 to bear against each other, even when there is a relative displacement of the sole 3 and of the tread 5 in the axial direction. In other words, when the tire 1 undergoes shear stresses in the axial direction, for example when turning, then the projections 75, 77 remain at least partially opposite one another. Support at the end of subsidence remains effective.
    In variants, the projections 75 of the tread 5 are wider than the projections 77 of the sole 3. In other variants, only one of the sole 3 and the tread 5 may be provided with projections . The tire 1 may be free of protrusion in the chamber 11. In this case the slump is for example stopped by contact of the tread 5 against the sole 3.
    The chamber 11 extends laterally under the shoulders 53, 55. The chamber 11 also extends radially in the ridge 51. The ridge is hollow and the lateral portions of the tire 1 also. In addition, the chamber 11 is unitary. Each of the spaces left empty under the shoulders 53, 55 is in fluid communication with the space left empty under the crest 51 and therein. The chamber 11 is in fluid communication with the outside, for example by means of an opening made in the sole during manufacture. The tire 1 is of the semi-hollow type. The tire 1 is non-inflatable, which facilitates deformation and self-cleaning by taking off the ground that tends to cling to the tire 1.
    Here, the shoulders 53, 55 are respectively connected to one and the other of the flanks 7, 9. The general directions of the shoulders 53, 55 form with the directions of the flanks 7, 9 respectively an angle referenced a (Alpha) understood between 90 ° and 135 ° in the prestressed state, excluding rolling. The general directions of the shoulders 53, 55 may extend generally parallel to the central axis 100 or be inclined substantially up to 45 °. The shoulders 53, 55 are also substantially convex, bulging outwards. This shape facilitates the take-off of the earth during deformations. Alternatively, the shoulders 53, 55 are straight seen in section, or slightly concave.
    Here, the sections 57 of the peak 51 are respectively connected to one and the other of the shoulders 53, 55. The general directions of the panels 57 form with the general directions of the shoulders 53, 55 an angle referenced Θ (Theta) included between 90 ° and 120 ° in the prestressed state, excluding rolling. The general directions of the panels 57 extend substantially by forming an angle referenced β (Beta) with respect to a radial direction between 0 and 45 ° in the prestressed state, excluding rolling.
    The height 201 of the ridge 51 corresponds to the radial extension thereof, between the radial end of the crown 59 and the extension of the outer surfaces of the shoulders 53, 55 in the prestressed state, excluding the rolling of the tire 1, as this is shown in FIG. 5. Here, the peak 51 extends radially beyond the shoulders 53, 55 over a height 201 of between 30 and 120 millimeters.
    The width of the ridge 51, in the axial direction, is referenced 105 and is in the axially compressed state between 30 and 120 millimeters.
    In addition, the width 105 is selected so that the ratio of the width 105 of the peak 51 to the width 101 of the tire 1 is between 15 and 70%.
    In operation, in a first step, the peak 59 of the ridge 51 comes into contact with the ground first. The contact surface between the tire 1 and the ground is reduced. The bearing force is then sufficient to make the top 59 penetrate the earth. The ridge 51 gradually sinks into the ground and forms the furrow. The shape of the peak 51 remains substantially unchanged during operation. The ridge 51 then forms a stiffener. The configuration of the ridge 51 facilitates the penetration of the top 59 and 57 sections in the ground. The sections 57 sink into the earth in the manner of a corner. They spread the side walls of the furrow by tamping the earth. The panels 57 form stiffeners. This improves the behavior of the furrow over time.
    In a second step, the shoulders 53, 55 come into contact with the ground on each side of the groove. The extent, or area, of contact between the tire 1 and the ground increases sharply. The resistance of the ground causes the shoulders 53, 55 to bend. The envelope is deformed in such a way that the shoulders 53, 55 bend under the effect of the contact of the tire 1 with the ground. Deformation facilitates the take-off of soil that can accumulate on the exterior surfaces. The ridge 51 approaches the sole 3 under the effect of the bending of the shoulders 53, 55. The ridge 51 remains undistorted or substantially indeformed.
    In a third step, at least a portion of the tread 5 abuts against at least a portion of the sole 3. The sagging movement is stopped. Here, the support is through the projections 75, 77 of the tire 1. The shoulders 53, 55 then come to tamp the ground on each side of the groove. This makes it possible to improve the resistance over time of the groove. The risk of surface soil between two furrows falling, then filling the grooves after the passage of the roller is reduced. The inclination of the panels 57 with respect to the shoulders 53, 55 generates a discontinuity. The inclination of the panels 57 and the position of the discontinuity can be adapted to control the width of the groove. Adjusting the shapes and dimensions of the ridge allows you to control the depth of the groove. The configuration of the projections 75, 77 makes it possible to control the dynamic behavior of the tire 1, irrespective of the hardness and resistance of the earth. The presence of the chamber 11 under the shoulders 53, 55 makes it possible to generate a controlled slump of the tread 5. The shoulders 53, 55 deform sufficiently to take off the earth which can accumulate on the tread 5, in particular on the shoulders 53, 55. When the subsidence and the takeoff of the earth has taken place, the formation of the groove by the depression of the crest 51 begins.
    During the sagging movement, the angle β between the panels 57 and the radial direction remains substantially constant while the angle α between each shoulder 53, 55 and the respective sidewall 7, 9 and the angle Θ between each shoulder 53, 55 and ridge 51 decrease gradually. The crest 51 of the tread 5 and the sole 3 come closer to each other. The flanks 7, 9, and in particular their radially outer portion, are pushed axially outwards. The lateral surfaces 33 are biased towards their corresponding bearing surface, for example towards the lateral surface 33 of an adjacent tire 1. This results in additional tightening, in operation, of each side surface 33 against an adjacent bearing face which makes it difficult to insert soil and / or debris between the lateral surface 33 and the corresponding bearing face. This tightening is locally accentuated in the active angular portion of the tire 1. It is effective when the angular portion is in contact with the ground. This area is the most exposed to debris that can strew the ground. The risk of insertion of soil and / or debris between two tires 1 is further reduced. With the exception of the zones provided with the projections 75, 77, the sole 3, the tread 5 and the sidewalls 7, 9 have thicknesses substantially equal to each other. The thicknesses are constant in the circumference of the tire 1. This facilitates the prediction of the dynamic behavior. This also limits the risk of occurrence of stress concentration zones and unwanted bend initiation.
    In the examples described here, the casing of the tire 1 is made in one piece. It is made of elastomer, for example rubber or polyurethane. The material used here has a Shore A hardness of between 50 and 70.
    In the examples described here, the tire 1 further comprises reinforcements 13, 15 or reinforcements, here three in number. The frames 13, 15 are formed of metal rings embedded in the sole 3. The rings are obtained by grouping metal son into bundles. The armatures 13, 15 may be seen as annular rods or rods which extend circumferentially in the sole 3. A median armature 13 is disposed in the radially inner half-thickness of the sole 3, that is to say in the vicinity of the seat surface 31. Two lateral armatures 15 are arranged in the half-radially outer thickness of the sole 3, at the junction with the sidewalls 7, 9 and in the vicinity of each of the lateral surfaces 33. The lateral armatures 15 are symmetrical to each other relative to the median plane 200. The central armature 13 has a substantially rectangular section and elongate in the axial direction. The side frames each have a substantially circular cross section. In variants, the tire 1 comprises, in addition to or in replacement of the metal frames 13, 15, reinforcements in the form of fabric or webs, for example made from polyester and / or polyamide.
    The tire 1 here has relief elements, formed in the tread 5, here in the top 59. The relief elements are exceptions to the uniformity of the tire 1 in its circumference. The relief elements are substantially equidistant along the circumference. The relief elements improve the adhesion of the tire 1 in the ground and avoids the rotational locking of the roller and the scraping of the earth. The relief elements form asperities in the earth, here at the bottom of the furrow, which facilitates the accumulation of small pockets of water as a result of bad weather or watering. Thus, the penetration of water into the earth is improved. In addition, when the furrows are made on sloping ground, the runoff of the water at the bottom of the furrows is limited and leaching phenomena of the earth also. Here, the relief elements include fingerprints 93, or concavities,
    Alternatively, the relief elements comprise studs 91, or protrusions, replacing or in combination with the footprints 93.
    In the examples described here and as it appears in the figures in radial section, the presence of relief elements does not locally modify the thickness of the tread 5. On the contrary, the inner surface of the side of the chamber 11 of the tread 5 has complementary shapes of the relief elements formed in the outer surface of the tread 5. The creation of a cleat 91 in the outer surface of the tread 5 causes the appearance of a shape corresponding recesses in the inner surface of the side of the chamber 11. The crampons 91 and / or fingerprints 93 then form reinforcements of the top 59 of the tread 5. The occurrence of local extra thicknesses or thinning is avoided.
    Reference is now made to FIGS. 6 to 17. The elements that are functionally similar to those of the embodiments described above bear the same numerical references.
    Figures 6 and 7 show a tire 1 similar to the tire 1 of Figures 1 to 4 with the exception of the shape of the 77 of the sole 3 which are wider than the projections 75 of the tread 5. In the state axially prestressed, the peak width 105 is about 50 mm while the total width 101 is about 150 mm, a ratio of about 33%. The peak height 201 is about 40 mm
    Figures 8 and 9 show a tire 1 with a peak width ratio 105 over the overall width 101 of the tire 1 larger than in the previous embodiments. The indentations 93 have an elongate shape and obliquely along the width of the ridge 51, in alternate directions once in two along the circumference. In the axially prestressed state, the peak width 105 is about 96 mm while the total width 101 is about 200 mm, a ratio of about 48%. The peak height 201 is about 40 mm.
    Figures 10 and 11 show a tire 1 with a peak width ratio 105 over the overall width 101 of the tire 1 smaller than in the previous embodiments. Footprints 93 have been replaced by crampons 91 generally crenellated. In the axially prestressed state, the peak width 105 is about 40 mm while the total width 101 is about 125 mm, a ratio of about 30%. The peak height 201 is about 33 mm, including crampons 91. This embodiment is particularly effective for working light soils at high speed.
    Figures 12 and 13 show a tire 1 with a peak width ratio 105 over the overall width 101 of the large tire 1. The cleats 91 have an elongated shape and obliquely along the width of the ridge 51, alternately along the circumference once in two. In the axially prestressed state, the peak width 105 is about 96 mm while the total width 101 is about 200 mm, a ratio of about 48 percent. The peak height 201 is about 40 mm, including crampons 91. This embodiment is particularly effective for working light soils at high speed.
    Figures 14 and 15 show a tire 1 with a peak width ratio 105 over the overall width 101 of the large tire 1. The cleats 91 have a circular section and are substantially identical to each other. In the axially prestressed state, the peak width 105 is about 100 mm while the total width 101 is about 200 mm, a ratio of about 50%. The peak height 201 is about 53 mm, including crampons 91.
    In the embodiments of FIGS. 1 to 15, the shapes and arrangements of the cleats 91 and / or imprints 93 are such that the tire 1 has no imposed direction of rolling. The tire 1 can roll indifferently in one direction or the other. It can therefore be mounted on its support 2 in one direction or the other in an equivalent manner. In the embodiment of FIGS. 16 and 17, the tire 1 has crampons 91 in the form of half-chevrons on each side of the ridge 51. The tire 1 has a mounting direction on its support 2. In the prestressed state axially, the peak width 105 is about 100 mm while the total width 101 is about 200 mm, a ratio of about 50%. The peak height 201 is about 41 mm, including crampons 91. This embodiment has a significant deformation of the shoulders and a good self-cleaning.
    In the embodiment of Figures 1 and 3, the portion of the roll shown is a central portion. The tires 1 are similar to each other. Alternatively, a roll may comprise tires of different configurations to create a variety of grooves. Alternatively, at least some of the tires of a roll may be asymmetrical. For example, at least one of the tires arranged at the ends of the support 2 may partially have a specific shape, in particular which corresponds to a shape of the abutment flange. The invention can also be seen as an agricultural tool comprising a tire as described above or a furrow roller equipped with a tire as described above. The invention is not limited to the examples of tires described above, only by way of example, but it encompasses all the variants that may be considered by those skilled in the art within the scope of the claims below.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    claims
    1. tire (1) for roller follower of the type comprising: - a sole (3) through which the tire (1) is mounted on a support (2) of agricultural roller, - a tread (5) opposed to the sole (3), and - two sidewalls (7; 9) connecting the tread (5) to the sole (3), the sole (3), the tread (5) and the sidewalls (7). 9) jointly delimiting a non-inflatable chamber (11), characterized in that the tread (3) comprises: - at least one ridge-shaped portion (51), and - two shoulder portions (53; ) each connecting the ridge-shaped portion (51) to a respective flank (7; 9), the chamber (11) extending at least partially laterally under the shoulder portions (53; 55) and radially in the ridge-shaped portion (51).
    [2" id="c-fr-0002]
    2. The tire (1) according to claim 1, wherein the shoulder portions (53; 55) have a generally convex shape.
    [3" id="c-fr-0003]
    Tire (1) according to one of the preceding claims, wherein an outer surface of the ridge-shaped portion (51) carries at least one relief element (91, 93).
    [4" id="c-fr-0004]
    4. Tire (1) according to one of the preceding claims, wherein the sole (3) and / or the tread (5) comprise at least a portion (75, 77) projecting into the chamber (11) under the portions of shoulders (53; 55) and arranged so as to limit by abutment the approach of the sole (3) and the tread (5).
    [5" id="c-fr-0005]
    5. Pneumatic tire (1) according to one of the preceding claims, wherein at least one sidewalls (7, 9) has a frustoconical lateral surface (33).
    [6" id="c-fr-0006]
    Pneumatic tire (1) according to one of the preceding claims, in which at least one of the two shoulder portions (53; 55) is connected to a respective sidewall (7; 9) so that the general direction of the shoulder portion (53; 55) and the general direction of the respective sidewall (7; 9) form an angle (a) of between 90 ° and 135 °.
    [7" id="c-fr-0007]
    7. A tire (1) according to one of the preceding claims, wherein the peak-shaped portion (51) has sloping sections (57) so that the general direction of each of the sections (57) forms an angle (β ) between 0 ° and 45 ° with respect to a radial direction (200).
    [8" id="c-fr-0008]
    8. A tire (1) according to one of the preceding claims, wherein at least one of the two shoulder portions (53; 55) is connected to the peak-shaped portion (51) so that the general direction the shoulder portion (53; 55) and the general direction of the ridge-shaped portion (51) form an angle (Θ) of between 90 ° and 120 °.
    [9" id="c-fr-0009]
    9. Tire (1) according to one of the preceding claims, wherein the peak-shaped portion (51) extends radially beyond the portions of shoulders (53; 55) on a height (201) between 30 and 120 millimeters.
    [10" id="c-fr-0010]
    Tire (1) according to one of the preceding claims, wherein the width ratio (105) over which the peak-shaped portion (51) extends over the entire width (101) of the tire (1) is between 15% and 70%.
    [11" id="c-fr-0011]
    11. Roller follower comprising a support (2) and at least one tire (1) according to one of the preceding claims being mounted on the support (2).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3114916A1|2017-01-11|Furrow-opening tire
    EP3017967B1|2020-12-30|Agricultural tyre
    FR2940185A1|2010-06-25|ROLLER BAND WITH IMPROVED DRAINAGE VOLUME
    FR2927844A1|2009-08-28|NON-PNEUMATIC BANDAGE.
    EP2895338A1|2015-07-22|Tread and tyre for heavy vehicle
    FR2618514A1|1989-01-27|PROCESS FOR MANUFACTURING A FLAT SEAL
    EP1972467A1|2008-09-24|Semi-hollow tyre, in particular for a farming machine
    EP1810560B1|2010-03-31|Semi-hollow tyre for a farming machine
    CA2924302A1|2016-09-30|Tire for agricultural roller and agricultural roller equipped with such tires
    EP2982229A1|2016-02-10|Agricultural tool with improved pneumatics
    EP2714431B1|2015-07-08|Tire tread for a farm tractor
    EP2310734A1|2011-04-20|Tightening device with collar
    FR3056879B1|2019-06-14|PNEUMATIC ELEMENT OF AGRICULTURAL TOOL COMPRISING A RIGID TOP
    FR3004384A1|2014-10-17|SEMI-HOLLOW PNEUMATIC TIRE FOR AGRICULTURAL MACHINERY, ESPECIALLY FOR SEEDERS
    EP1555904A1|2005-07-27|Sole for moving in particular on unstable surface
    EP2359045B1|2015-09-30|Seal assembly and corresponding tubular joint
    EP3636057A1|2020-04-15|Tyre for agricultural roller
    FR2776239A1|1999-09-24|Special tires mounted on tube to form roller creating furrows for seed drill
    EP3636058A1|2020-04-15|Self-cleaning agricultural roller
    WO2017186905A1|2017-11-02|Disengageable hydraulic machine and vehicle provided with such a machine
    EP1033266B1|2003-06-04|Semi-tubular tyre having reinforced structure
    FR2974140A1|2012-10-19|CONNECTOR FOR HOLLOW PORTIONS OF PROFILE | ESPECIALLY FOR DOUBLE GLAZING FRAME
    EP3558716B1|2020-10-21|Tread for an agricultural vehicle tyre
    FR2608356A1|1988-06-24|Compacting roller particularly for agricultural tools
    WO2017167711A1|2017-10-05|Tyre comprising a block with incisions
    同族专利:
    公开号 | 公开日
    FR3038490B1|2017-07-21|
    US9867327B2|2018-01-16|
    AU2016204645A1|2017-02-02|
    CA2933794A1|2017-01-10|
    AU2016204645B2|2020-12-24|
    UA121027C2|2020-03-25|
    US20170006768A1|2017-01-12|
    EP3114916A1|2017-01-11|
    RU2706085C1|2019-11-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE9205660U1|1992-04-27|1992-08-27|Maschinenfabrik Rau Gmbh, 7315 Weilheim, De|
    EP2556734A1|2011-08-12|2013-02-13|Otico|Agricultural machine with adapted roller and wheel|EP3636057A1|2018-10-12|2020-04-15|Otico|Tyre for agricultural roller|US1682896A|1923-03-01|1928-09-04|Dunham Co|Tillage implement|
    US2040710A|1935-06-28|1936-05-12|Riehl Frederick Hugh|Ground rolling and pulverizing implement|
    US2525545A|1946-05-27|1950-10-10|David E Hanson|Tractor wheel supported mulching roller|
    US2713373A|1952-04-18|1955-07-19|Firestone Tire & Rubber Co|Implement tire|
    US3207234A|1962-10-22|1965-09-21|Wayne R Stewart|Press wheel tire with crust fracture bars|
    US3447075A|1967-03-29|1969-05-27|Leeds & Northrup Co|Equal currents potentiometer circuits for measurements of resistances-particularly temperature-sensitive resistances|
    US4362202A|1981-03-30|1982-12-07|Sun Metal Products, Inc.|Semi-pneumatic tire|
    SU1521307A1|1986-04-21|1989-11-15|Ю. А. Янкович|Method of counter-erosion tilling of soil|
    GB9224555D0|1992-11-24|1993-01-13|Creyke Charles H|Improvements relating to land management|
    FR2861252B1|2003-10-27|2006-02-17|Otico|AGRICULTURAL MACHINE COMPRISING A TILTED CARRIER AND ROLLERS HAVING A SERIES OF PNEUMATIC DOME-PROFILE TIRES|
    FR2896452B1|2006-01-20|2008-04-11|Otico Sa|SEMI-HOLLOW PNEUMATIC TYPE FOR AGRICULTURAL MACHINE.|
    FR2913915B1|2007-03-21|2009-05-29|Otico Sa|PNEUMATIC TYPE SEMI-HOLLOW, IN PARTICULAR FOR AGRICULTURAL MACHINE|
    FR2917569B1|2007-06-19|2009-09-18|Otico Soc Par Actions Simplifi|SEMI-HOLLOW PNEUMATIC ROLLER FOR AGRICULTURAL MACHINE, ESPECIALLY A ROLLER COMBINABLE TO A PLANTER OR A TOOL FOR SOIL PREPARATION|
    FR2933903B1|2008-07-18|2010-08-27|Otico|SEMI-HOLLOW PNEUMATIC AND ASSOCIATED WHEEL RIM, IN PARTICULAR FOR AGRICULTURAL MACHINERY|
    DE102010037872A1|2010-09-30|2012-04-05|Amazonen-Werke H. Dreyer Gmbh & Co. Kg|Agricultural machine|
    FR2997653B1|2012-11-07|2017-12-08|Otico|SEMI-HOLLOW PNEUMATIC TIRE WITH IMPROVED PROFILE AND ROLLING MEMBER EQUIPPED WITH SUCH TIRES|
    FR3034283B1|2015-03-30|2017-05-05|Otico|PNEUMATIC TIRE FOR AGRICULTURAL ROLL AND AGRICULTURAL ROLL EQUIPPED WITH SUCH TIRES|FR3034283B1|2015-03-30|2017-05-05|Otico|PNEUMATIC TIRE FOR AGRICULTURAL ROLL AND AGRICULTURAL ROLL EQUIPPED WITH SUCH TIRES|
    FR3056879B1|2016-09-30|2019-06-14|Otico|PNEUMATIC ELEMENT OF AGRICULTURAL TOOL COMPRISING A RIGID TOP|
    USD896737S1|2018-05-25|2020-09-22|Otico|Wheel for tamping or closing furrows|
    法律状态:
    2016-07-20| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-13| PLSC| Search report ready|Effective date: 20170113 |
    2017-07-21| PLFP| Fee payment|Year of fee payment: 3 |
    2018-07-26| PLFP| Fee payment|Year of fee payment: 4 |
    2020-07-29| PLFP| Fee payment|Year of fee payment: 6 |
    2021-07-28| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1556600A|FR3038490B1|2015-07-10|2015-07-10|PNEUMATIC SILLONNEUR|FR1556600A| FR3038490B1|2015-07-10|2015-07-10|PNEUMATIC SILLONNEUR|
    US15/188,171| US9867327B2|2015-07-10|2016-06-21|Pneumatic furrow|
    CA2933794A| CA2933794A1|2015-07-10|2016-06-21|Furrowing tire|
    EP16177807.1A| EP3114916A1|2015-07-10|2016-07-04|Furrow-opening tire|
    AU2016204645A| AU2016204645B2|2015-07-10|2016-07-05|Furrow-opening tyre|
    UAA201607443A| UA121027C2|2015-07-10|2016-07-08|PNEUMATIC RAIL FOR RAW|
    RU2016127588A| RU2706085C1|2015-07-10|2016-07-08|Pneumatic tire for furrower|
    [返回顶部]