• 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:
    This monolithic shoe (2) is intended to enter into the constitution of a raceway of a non-slip device for a motor vehicle tire. It comprises at least one rigid insert, said insert having: a longitudinal direction intended to be oriented in the width direction of the tire of a vehicle wheel, and securing means to elements connecting the skids to each other , so as to form the raceway of the anti-slip device. It comprises an envelope (3) made of a polymeric material, inside which said at least one rigid insert is at least partially embedded.
    公开号:FR3017336A1
    申请号:FR1451056
    申请日:2014-02-11
    公开日:2015-08-14
    发明作者:Xavier Joubert；Thierry Joubert；Regis Kaelin；Thomas Paillard
    申请人:Joubert Productions；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION The invention relates to the field of anti-skid devices for motor vehicle wheel tires. BACKGROUND OF THE INVENTION Such devices are generally in the form of a raceway comprising a plurality of chains, a textile strip, a net, or even pads, having anti-slip properties, these non-slip function elements being attached or fixed on the strip of rolling of an automobile tire. These anti-slip devices are thus reported on vehicle wheels in the event of snow or ice on the roadway. The invention is more particularly directed to an anti-slip pad intended to form one of the disjoint elements of a raceway. Each anti-slip pad is thus positioned between two consecutive joining elements, so as to form the integral raceway attached to the wheel of a vehicle. PRIOR STATE OF THE ART In general, and as described in particular in EP 2 059 399, it is known to produce a monolithic skid pad made of a polymer material. Thus, such an anti-slip pad is secured to junction elements, formed in particular by chain links. The ends of the link chains are then inserted into a slot 25 formed in the anti-slip pad, and a pin of particular shape is positioned partially inside the end mesh preventing the sliding of the link outside the slot. However, such non-slip pads are relatively rigid since the juncture between the end links and the non-slip pad is achieved by jamming the end link within a slot of polymeric material. Thus, since the polymeric material forming the non-slip pad must be very rigid and resistant, this type of non-slip pad does not have any deformation capacity. Once the compacted snow or ice completely fills the hollow central portion of the skate, such a skate loses some of its slip characteristics.
    [0002] In addition, in the context of so-called frontal slip systems, that is to say in which said systems are fixed on the tire by the front zone of the wheel, and therefore in the absence of any means of attachment to the tire. level of the inner zone of said wheel, it is necessary to have a reduced thickness, typically less than 9 millimeters. However, the devices known to date do not allow to combine both such a reduced thickness and a certain efficiency of the adhesion of the tire provided with such systems on a snowy or icy road, especially when they consist of continuous chains. .
    [0003] Indeed, one encounters difficulties inherent in the mechanical attachment of non-slip pads with the other elements of the raceway of such systems. Thus, the object of the invention is to provide an anti-slip pad which is both resistant to tensile stresses, in particular generated during emergency braking, and which is also substantially flexible and / or deformable so as to evacuate constantly snow present at a central portion thereof, while retaining optimized anti-slip properties, and finally, which allows to effectively secure said pad to the elements of the raceway ensuring their connection between them.
    [0004] DISCLOSURE OF THE INVENTION The invention therefore relates to a monolithic anti-slip pad intended to equip a non-slip device for motor vehicle wheels.
    [0005] According to the invention, such an antiskid pad comprises at least one rigid insert, in particular a metal insert, and generally made of a material of high hardness, each insert comprising: a longitudinal direction intended to be oriented in the direction of the width of the a vehicle wheel, and - securing means arranged respectively close to an end of the insert in the longitudinal direction, allowing the attachment of such an anti-slip pad with two juxtaposed junction elements of the non-slip device, moreover and according to the invention, the non-slip pad comprises an envelope formed of a polymeric material within which said at least one insert is at least partially embedded.
    [0006] In other words, the metal inserts of the non-slip pads are intended to be arranged in the width of the wheel, so that the longitudinal direction of the insert is arranged opposite a connecting element. This insert may be unique in each pad, and in particular extend along the lateral zones of said pad, so as to optimize the securing of said pad to the two connecting elements which are adjacent thereto. According to one embodiment of the invention, the means for securing the pad to said adjacent junction elements are constituted by through orifices, the latter 15 being intended to be traversed by staples, themselves secured to said adjacent junction elements. According to this configuration, the casing formed of polymer material of each non-slip pad may have counterbores arranged around the through openings of the inserts so as not to generate extra thickness at the crimping or riveting zone of the staples with the skid pad casing. The depth of the countersinks is thus substantially equal to the thickness of said staples and / or metal rivets passing through them. Furthermore, such metal inserts are partially overmolded by a polymeric material forming the envelope intended to be in contact with the tire of the wheel. Such a polymeric material thus makes it possible not to damage the tire in contact with the non-slip pad when using such a non-slip device and, moreover, makes it possible to optimize the shape of the surface of the pad intended to come into contact with the in order to optimize the grip function of the anti-slip device on the snow-covered roadway. Such a polymeric material may in particular be chosen from the group comprising elastomers, and in particular polyurethane. The polyurethane chosen to form the casing of the pad may, for example, have a relatively high degree of flexibility, guaranteeing good elasticity of this pad, and consequently conferring a deformation capacity at a central portion of the pad. Such a material may in particular have a hardness of between 75 and 90 Shore A and which is advantageously chosen greater than the hardness used to make the joining elements, which may themselves be made of polyurethane. The insert may be metallic, and in particular steel or titanium. It can, however, be made of any material of high hardness, such as composite material.
    [0007] Advantageously, such an anti-slip pad may comprise a central portion of polymeric material comprising a plurality of openings or cells, in particular molded. In doing so, a lightening of the device is achieved, and in addition, forms are created which function as crampons, optimizing the grip on the snow.
    [0008] In other words, such a central portion made of polymeric material has openings, such openings may make it possible to improve the evacuation capacity of the snow contained inside the openings at each rotation of the wheel, and therefore to each contact of an anti-slip pad with the snow.
    [0009] In practice, all or part of the openings of the central portion may be open. Thus, the openings of the central portion are deep and can generate a crampon effect According to a particular embodiment, all or part of the openings may have a hexagonal shape. Advantageously, the central portion of polymeric material may comprise a ribbed surface for locally increasing the thickness of this central portion.
    [0010] In this way, the ribbed surface makes it possible to locally increase the depth of the openings, and consequently also the desired crampon effect. Such ribs forming the ribbed surface also make it possible to improve the technical characteristics of resistance in torsion and / or flexion of the non-slip pad. In practice, the at least one insert may comprise punched zones forming a plurality of protuberances emerging from the shell of polymer material of the pad. According to this embodiment, each metal insert may therefore comprise a plurality of protuberances obtained by cutting its surface, and then folding this cut in a direction substantially perpendicular to the plane defined by the metal insert. Indeed, such a metal insert is generally in the form of a flat sheet and the cuts are used to improve the adhesion of a non-slip pad on an ice surface. Obtaining these protuberances may result from the well-known metallurgical technologies, and in particular may result from molding or forging, or cutting-stamping. In addition to these punched zones, the metal insert may also comprise a plurality of arrangements, such as cutouts of the periphery of the insert or orifices, making it possible to improve the cohesion between the metal insert and the overmolding polymer material. . The protuberances emerging from the polymeric envelope are thus all oriented towards a surface of the non-slip pad intended to be in contact with the roadway, and not with the wheel of the vehicle. Moreover, such protuberances may each comprise a rectilinear shape or a tip. In other words, the protuberances consist of one end of the blank in the metal insert. Therefore, the rectilinear shape is due to a cutting length substantially greater than the thickness of the metal insert. In addition, the protuberances can be arranged relative to each other in perpendicular and parallel orientations. In other words, the punched zones are symmetrically arranged and make it possible to produce an array of protuberances according to two groups of parallel protuberances, each group having an orientation perpendicular to that of the other group. According to a particular embodiment, the protuberances can be oriented at 45 ° and / or at 135 ° with respect to the longitudinal direction of the inserts. Thus, the orientation of the protuberances of a first group can be achieved at 45 ° with respect to the longitudinal direction of the metal inserts, while the orientation of the second group is oriented at 135 ° with respect to this same longitudinal direction. Such an embodiment thus makes it possible to guarantee good adhesion of the non-slip pad with the road surface, when the latter is ice-cold in particular. It also makes it possible to impart good grip of the skate on the road during a turn, regardless of the turning radius of the wheels. Advantageously, the protuberances can emerge from the envelope of polymer material of a height substantially equal to that of the ribbed surface of the central portion. Such an arrangement also makes it possible to improve the driving comfort of a vehicle equipped with such anti-slip devices. Indeed, in the case where the protuberances emerge from the casing substantially greater than that of the central portion, a significant rolling noise, produced by the metal inserts, would be felt in the vehicle. In addition, there would be premature wear of these protuberances and damage to the roadway in the absence of snow or ice. SUMMARY DESCRIPTION OF THE FIGURES The manner of carrying out the invention, and the advantages which result therefrom, will emerge clearly from the description of the embodiment which follows, given as an indication, and not by way of limitation, in support of the appended figures, in which which: - Figure 1 is a partial perspective view of a non-slip device equipped with non-slip pads according to the invention; Figures 2 and 3 are perspective views of an anti-slip pad according to the invention; - Figure 4 is a front view of an anti-slip pad according to the invention.
    [0011] EMBODIMENT OF THE INVENTION As already mentioned, the invention relates to a monolithic slip-resistant pad intended to equip a non-slip device for vehicle wheels.
    [0012] As shown in FIG. 1, such an anti-slip pad 2 is attached to the periphery of a vehicle wheel 5 and is kept in contact with this wheel by means of a plurality of connecting elements 1 and 11 making it possible to define , with the monolithic non-slip pads 2, a continuous raceway arranged in contact with the tread of a tire of a wheel 5. Moreover, the non-slip pads 2 are, in the example described, secured to the elements 1, 11 by means of staples 22, 23, 32, 33, said staples forming a loop passing through the joining elements 1, 11 and the non-slip pad 2.
    [0013] As shown in FIG. 2, such staples 22, 23, 32, 33 have two ends arranged opposite the non-slip pad 2 and crimped or riveted together by passing through the non-slip pad 2.
    [0014] Moreover, and as shown, such an anti-slip pad 2 comprises two metal inserts 6, 7 arranged inside a casing 3 made of a polymer material. Such inserts 6, 7 further include a longitudinal direction 16, 17, intended to extend in the width direction of the tire of the vehicle wheel. Such longitudinal directions 16, 17 of the metal inserts 6, 7 are thus arranged parallel to the inside of the polymer casing 3. If, in the example described, two inserts are represented in the same shoe, it is may be envisaged, without departing from the scope of the present invention, to provide a single insert for said pad. In this case, the insert may adopt a shape suitable for extending along the entire periphery of said pad. As represented in FIG. 3, the anti-slip pad 2 has through-holes 8, 9 formed inside each metal insert 6, 7. Such outlets 8, 9 then allow the passage of a fastening element of the staples 22, 23, 32, 33, such as a rivet or any crimpable part.
    [0015] Moreover, and as shown, the non-slip pad may comprise counterbores 40 arranged near the openings opening 8, 9. These countersinks 40 are arranged at an upper surface of the non-slip pad 2 intended to come into contact with the floor , and a lower surface of the non-slip pad 2 intended to come into contact with the tire of the vehicle wheel. Such countersinks 40 thus make it possible to integrate inside the thickness of the non-slip pad 2 the ends of each staple and / or the crimping means of these staples 22, 23, 32, 33. As shown, the pad non-slip 2 also comprises a central portion 20 made, in the example described, only by means of the casing 3 made of the polymeric material. Such a central portion 20 has openings 21, 22, 23 which can be open. In this way, the openings 21, 22, 23 make it possible to leave the apparent tire when such an anti-slip pad 2 is positioned on a vehicle wheel.
    [0016] In addition, the shape of the openings 23 may advantageously be hexagonal. Such an embodiment makes it possible to guarantee good resistance to twisting and / or flexion while allowing a tensile and compressive deformation capacity in a direction perpendicular to the longitudinal direction of the two metal inserts 6, 7.
    [0017] In addition, the central portion 20 may also comprise a ribbed surface 24 for increasing the depth of the openings 21, 22, 23 and also the torsional and bending stiffness of the central portion 20.
    [0018] Finally, as shown in FIG. 4, the through openings 8, 9 of the metal inserts 6, 7 are formed at the ends 18 and 19 of each insert 6. Thus, the metal inserts 6, 7 extend substantially over the width of the non-slip pad 2. As shown, the metal inserts 6, 7 have punched areas 30 for forming protuberances 31 extending substantially perpendicular to the plane defined by each metal insert 6, 7. Such protuberances 31 emerge from the casing 3 defined by the polymer material of the non-slip pad 2.
    [0019] Furthermore, such protuberances 31 may be in the form of a straight edge whose thickness corresponds to the thickness of each metal insert 6, 7. The length of these protuberances 31 is chosen according to the performance adhesion desired, especially on a pavement covered with ice.
    [0020] Such protuberances 31 may thus form two groups comprising two distinct orientations with respect to the longitudinal direction of the inserts 6, 7. A first group may be oriented at 45 ° with respect to the longitudinal direction of the metal inserts and a second group may be oriented at 135 ° with respect to this same longitudinal direction. In addition, in order to improve the cohesion between the metal insert 6 and the casing 3, orifices 41 may be formed inside each insert 6. The material constituting the casing 3, and typically polyurethane, can thus flow through each metal insert 6. Similarly, lateral cutouts 42 of each metal insert 6 can be made in order to increase the contact area and / or to form zones of blocking of the polymer material at the level of the surface formed by the stop of such a metal insert 6 thus avoiding any delamination problem.
    [0021] It follows from the foregoing that a monolithic slip-resistant pad according to the invention has many advantages, among which we can cite: it is particularly resistant to the tensile and compressive stresses transmitted by the staples, and generally to the securing means and each connecting element arranged between the different non-slip pads; - it guarantees optimal adhesion to vehicles on roads that can be both snowy and icy; it makes it possible to concomitantly give relief to the non-slip device, reducing its thickness, and optimizing adhesion, particularly on icy roads.
    权利要求:
    Claims (2)
    [0001]
    REVENDICATIONS1. Monolithic skate (2) for a raceway of a non-slip device for a tire (5) of a motor vehicle, characterized in that it comprises at least one rigid insert (6), said insert having: a longitudinal direction intended to to be oriented in the direction of the width of the tire of a vehicle wheel, and - securing means to the junction elements (1, 11) of the pads together, so as to constitute the raceway of the device anti-slip; - And in that said pad (2) comprises a casing (3) made of a polymeric material, inside which said at least one rigid insert (6) is at least partially embedded. Monolithic shoe according to claim 1, characterized in that it comprises a central portion made of polymer material having a plurality of openings (21, 22, 23). Monolithic shoe according to claim 2, characterized in that all or part of the openings are open. Monolithic skate according to one of claims 2 or 3, characterized in that all or part of said openings comprise a hexagonal shape. Monolithic shoe according to one of claims 2 and 3, characterized in that the central portion of polymeric material comprises a ribbed surface for locally increasing the thickness of said central portion. Monolithic shoe according to one of claims 1 to 5, characterized in that said at least one rigid insert (6) has punched areas forming a plurality of protuberances (31) emerging from the polymeric material envelope of said pad. 10 15
    [0002]
    2. 203. 4. 25 5. 30 6. 7. 8. 9. 10. 11. 12. Monolithic pad according to claim 6, characterized in that said protuberances each comprise a rectilinear shape. Monolithic skate according to claim 7, characterized in that the protuberances are arranged relative to one another in perpendicular and parallel orientations. Monolithic shoe according to claim 7, characterized in that the protuberances are inclined at 45 ° and / or 135 ° with respect to said longitudinal direction of the inserts. Monolithic skate according to one of claims 6 and 7, characterized in that said protuberances emerge from the envelope of polymer material of a height substantially equal to that of the ribbed surface of the central portion. Monolithic shoe according to one of claims 1 to 10, characterized in that the means for securing the shoe to the adjacent junction elements (1, 11) consist of through openings, formed near the ends of the insert, said outlets being intended to be traversed by staples, themselves secured to said adjacent junction elements. Monolithic shoe according to one of claims 1 to 11, characterized in that the casing (3) is made of elastomer, and in particular polyurethane.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3105069B1|2019-02-20|Tread of an anti-skid device for a pneumatic tyre comprising a monolithique gripping plate
    EP2834089B1|2016-06-08|Heavy goods vehicle driven axle tyre tread
    FR2931728A1|2009-12-04|PNEUMATIC FOR ICE TRUCK
    FR2924981A1|2009-06-19|TIRE TREAD FOR SNOW TIRE.
    EP2318219B1|2012-04-04|Tyre tread with directional pattern
    EP2714431B1|2015-07-08|Tire tread for a farm tractor
    WO2015052122A1|2015-04-16|Tread comprising a directional tread pattern
    FR3014749A1|2015-06-19|
    EP1207057B1|2007-01-31|Tread pattern for pneumatic tire for trucks
    FR3012767A1|2015-05-08|ROLLER BAND COMPRISING A BLOCK HAVING A PLURALITY OF INCISIONS
    EP1351830B1|2006-08-30|Directional running tread comprising sipes with variable inclination
    EP0119878B1|1986-11-05|Anti-skid device for vehicle tyres
    WO2010007294A1|2010-01-21|Anti-slip stud for tyre with mixed tread
    EP1859969A1|2007-11-28|Elastic belt with studs for snow and black ice for an automobile tyre with quick and easy assembly
    CH618923A5|1980-08-29|Tyre for the drive wheels of agricultural tractors
    EP3030432B1|2020-07-01|Tyre comprising a particular graphic element
    EP1349738B1|2006-11-15|Multipurpose tread with antiskid elements made of metal and rubber for all types of vehicles and surfaces
    EP3648990A1|2020-05-13|Tread for an agricultural vehicle tyre
    EP3221159B1|2018-07-11|Tyre with improved wet grip in a part-worn state
    EP2925541A1|2015-10-07|Tyre tread with directional design
    WO2018083417A1|2018-05-11|Tread comprising a long tread bar having a plurality of cut-outs
    EP3558716B1|2020-10-21|Tread for an agricultural vehicle tyre
    FR2579143A1|1986-09-26|Removable non-skid strip for a wheel with a tyre
    EP3436288B1|2020-12-30|Tyre comprising a block with incisions
    CA2182992C|2000-10-31|Round rings and flat links traction chain
    同族专利:
    公开号 | 公开日
    EP3105069B1|2019-02-20|
    WO2015121547A1|2015-08-20|
    EP3105069A1|2016-12-21|
    FR3017336B1|2016-02-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0298905A1|1987-07-08|1989-01-11|RUD-Kettenfabrik Rieger & Dietz GmbH u. Co.|Antiskid device for vehicle wheels|
    CH679921A5|1988-11-30|1992-05-15|Erlau Ag Eisen Drahtwerk|Tyre chain connector - has attachments for links located at automatically-adjusting distance apart|WO2020031001A1|2018-08-07|2020-02-13|Compagnie Générale Des Établissements Michelin|Traction assistance device with a traction strip consisting of alternating blocks|
    WO2020031002A1|2018-08-07|2020-02-13|Compagnie Générale Des Établissements Michelin|Traction assistance device with a traction strip consisting of blocks with elastomer bars|
    FR3084852A1|2018-08-07|2020-02-14|Compagnie Generale Des Etablissements Michelin|TRACTION AID DEVICE WITH ELASTICITY TENSION BELT|
    WO2020121194A1|2018-12-14|2020-06-18|Compagnie Générale Des Établissements Michelin|Traction assistance device with chains and lateral attachment|US3028901A|1959-11-18|1962-04-10|George J Batori|Traction device for vehicles|
    AT480412T|2006-09-08|2010-09-15|Weissenfels Traction S P A|SLIDING PROTECTION DEVICE FOR WHEELS|
    法律状态:
    2015-02-27| PLFP| Fee payment|Year of fee payment: 2 |
    2016-02-25| PLFP| Fee payment|Year of fee payment: 3 |
    2017-02-27| PLFP| Fee payment|Year of fee payment: 4 |
    2018-02-26| PLFP| Fee payment|Year of fee payment: 5 |
    2020-02-20| PLFP| Fee payment|Year of fee payment: 7 |
    2021-02-25| PLFP| Fee payment|Year of fee payment: 8 |
    2022-02-22| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1451056A|FR3017336B1|2014-02-11|2014-02-11|MONOLITHIC SKATE FOR ROAD OF A NON-SLIP DEVICE FOR TIRE OF A MOTOR VEHICLE|FR1451056A| FR3017336B1|2014-02-11|2014-02-11|MONOLITHIC SKATE FOR ROAD OF A NON-SLIP DEVICE FOR TIRE OF A MOTOR VEHICLE|
    PCT/FR2014/053448| WO2015121547A1|2014-02-11|2014-12-19|Monolithic pad for the running surface of an anti-skid device for a motor vehicle tyre|
    EP14828249.4A| EP3105069B1|2014-02-11|2014-12-19|Tread of an anti-skid device for a pneumatic tyre comprising a monolithique gripping plate|
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