• 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:
    airless vehicle tire a non-inflatable vehicle tire in the field of tire for use in vehicles, comprising a rubber casing molded to fit and be fixed to a wheel rim with a series of equally spaced passages that extend transversely through the housing to provide resilient supporting ribs between the passages and containing tread to grip the track molded in the housing on a flexible steel cable reinforcement strap in which the strap comprises a plurality of overlapping layers of coated hard steel cable and in which smaller passages are provided through the ribs.
    公开号:BR112014029278B1
    申请号:R112014029278-7
    申请日:2012-05-24
    公开日:2020-09-01
    发明作者:Pieter Johannes Labuschagne
    申请人:Prospect Sa Investments 121 Limited；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [1] This invention relates to tires for use in a variety of vehicles from light vehicles to a wide variety of vehicles used in on-road and off-road applications, both motorized and non-motorized, and which are non-inflatable. HISTORY OF THE INVENTION
    [2] Most tires for vehicles of this general nature are expensive and subject to severe wear. Currently these tires are inflated pneumatically which increases the cost of manufacture as well as making them subject to damage.
    [3] Many efforts have gone on for many years to achieve a commercially acceptable tire of this nature. So far, despite great resources available to tire manufacturers, satisfactory tires have not been produced.
    [4] Tires currently manufactured and used when worn beyond possible repair are a serious waste disposal risk. OBJECT OF THE INVENTION
    [5] It is the object of this invention to provide a non-inflatable vehicle tire that will satisfactorily perform the required task of such tires and provide a long service life. SUMMARY OF THE INVENTION
    [6] In accordance with this invention, a non-inflatable vehicle tire is offered comprising a rubber casing molded to fit and attach to the rim of a wheel with a series of equally spaced passages extending transversely through the casing to provide resilient support ribs between passages and containing a tread with a grip on the road molded in the housing over a flexible reinforcement band.
    [7] Other features of this invention allow the tire to be manufactured by molding a set of a rough rubber housing and a reinforcement layer and rubber tread on a wheel rim and by applying a reinforcement band under a body of rubber tread material to complete a solid tire, and cure the rubber under heat and pressure to join the carcass and reinforce the tread.
    [8] The invention also provides as reinforcement a steel cable strap in a plurality of composite layers, and the cross section of the passages to form the ribs containing concave sides optionally with smaller passages through at least some of the parts without concave sides of the ribs .
    [9] Other features of the invention provide passages through the tire that are inclined with respect to the tire's axis; and at least the openings in the passages that are shaped to induce an air flow through them.
    [10] The invention also provides the reinforcement of steel cables to comprise components coated with galvanized hard steel or coated with bronze and about 2 mm in diameter.
    [11] Other features of the invention provide the steel cable strap to comprise a pair of outer layers with the cable components parallel to the sides of the housing and a pair of inner layers containing its cable components angled across the housing in opposite directions; and the inclination of the cable components by about 30 °.
    [12] Yet another feature of this invention provides radial holes to be provided in the housing that extends externally from the passages through the tread.
    [13] The invention also provides the internal circumference of the housing to be molded to extend between flanges in the wheel rim forming a shallow channel around the wheel and around a series of flanged ribs that project outwardly along the outer surface.
    [14] The term "rubber" used in this specification is to be understood as including natural rubber and synthetic rubber, mixtures of these and other polymer materials containing similar physical properties. BRIEF DESCRIPTION OF THE DRAWINGS
    [15] These and other features of this invention will become apparent from the following description described below with reference to the accompanying drawings in which:
    [16] Figure 1 shows a section of a tire and wheel rim;
    [17] Figures 2 and 3 show a wheel rim suitable for the tire in section and top views;
    [18] Figure 4 shows a tire and a different rim in perspective; and
    [19] Figure 5 shows details of the tire. DETAILED DESCRIPTION OF THE INVENTION
    [20] As shown in Figure 1, a section of a non-inflatable tire (1) is fitted to a wheel rim (2). The wheel rim (2) provides a peripheral seat for the casing and tread assembly and includes a disc (5) for mounting the tire to a vehicle wheel hub.
    [21] The wheel rim (2) includes an integral wheel cylinder (4) shown in Figure 2. The rim (2) has outwardly directed lips (6) that form a shallow channel (7) shown in Figure 2. Ribs cross-sections with "T" sections (8) shown in Figure 3 extend at spaced intervals along the outer surface of the drum (4) to anchor the housing (3) to the rim (2) and cylinder (4). These ribs (8) also contain flanges (SA) to assist in anchoring the molded rubber to the rim (2).
    [22] The tire casing (3) (1) can be injection molded or pressure molded from a polymer selected to satisfy the particular purpose the tire must satisfy. Essentially the polymers will consist of a mixture of natural rubber combined with a polybutadiene compound and the tire manufacturing specialists will be able to select the desired mixture.
    [23] A basic vehicle tire housing can contain a mixture to provide:
    [24] Tensile strength MpA - 20
    [25] Hardness I RH D - 65
    [26] Elongation at break% - 650
    [27] Recovery Resilience% - 70
    [28] The compound values for the tread will be 21, 68, 600 and 55 respectively and contain an abrasion loss per mm3 of 85. These numbers will certainly vary depending on the environment and purpose of the tires and experts in the field will determine the final constituents based on the application of their knowledge in the necessary experimentation.
    [29] The molding operation will result in a frame (3) being fixed to a wheel rim (2), with a body of resilient material with radially protruding ribs (10) forming passages with concave sides (9) between them and connecting the wheel cylinder to an outer belt that will support the tread (5A) of the tire. The stiffness of the ribs (10) can be varied by choosing the smaller passages (9A) provided through the solid material of the molded housing (3).
    [30] In the illustrative wheel assembly, the passages (9) are shaped to generate the support ribs that extend radially (10) and are concave in (11) and (12). The non-concave parts of the ribs (10) have the smallest passages (9A) passing through. The shape, location and number of additional passages (9A) can be varied to offer the desired resilience properties or can be used to identify a tire as suitable for a particular purpose. These passages are shown, for example, as having a circular, elliptical or diamond shape in Figure 1. Openings can be provided from the passages (9) radially through the usual recesses in the tire tread (5A).
    [31] The tread portion (5A) is vulcanized in the housing (3) over an endless band layers of flexible steel cable (4A) shown in Figure 5. These layers (4A) are known in the manufacture of tires and made of galvanized hard steel generally braided or components coated with bronze to form the cable material so that it is joined between the tread (5A) and the housing (3) through the openings in the layers. This will contain any tendency for the tire (1) to change its shape under load and increase the tread attachment to the frame without adversely affecting the resilience of the complete wheel set. The layers are deposited so that the ends of each layer have a core end line that extends at an angle through the housing and is spaced from the other layers. The core components of the two outer layers are parallel to the tire axis while the two inner layers have component lines angled in opposite directions at 30 ° angles to the tire axis.
    [32] It is a particular feature of the tire assembly that it includes features to induce airflow across the width of the frame and rim to prevent any overheating of the tire and brake assemblies during use. This can be accomplished by rounding off a radial edge of the operative outer edge of the passages (9).
    [33] In Figure 1, for example, it is also indicated that one side of the tire has the entrance to the passages (9) modeled as indicated in (9B) to induce air flow through the tire from the operant exterior of the tire inland. The opposite edge can be provided with a shell-shaped edge to further accentuate the cooling effect.
    [34] The tires are designed to fit a vehicle in one position only so that the cooling feature can be achieved.
    [35] The passages (9) are preferably tilted from the outside rear area operatively to the inside. This also induces a flow through the passages as the wheel turns and moves forward.
    [36] There is also the same cooling effect applied to the cylinder when directing the air flow through the moving wheel to the brake assembly. This is indicated by the shells (14) in Figure 3.
    [37] Figure 5 schematically shows a cross section of part of the tire indicating the flexible steel cable (4A) between the casing (3) and the tread (5A) of the tire.
    [38] The application of the invention described above can be modified by those skilled in the art in many ways to offer different particular configurations of component details without departing from the scope of the invention. For example, the reinforcement belt described above can be provided by carbon fiber, nylon, textile fabric or the like. Further modifications are made to meet the different needs of the wide variety of vehicles for which this tire can be adapted. This is achieved without the problems encountered in using inflation.
    权利要求:
    Claims (12)
    [0001]
    1. AIRLESS TIRE FOR VEHICLES comprising a rubber housing (3) molded to fit and be fixed to a wheel rim (2) with a series of equally spaced passages (9) extending transversely through the housing (3) to providing resilient support ribs (10) between the passages (9) and having a tread (5A) with grip on the molded road to engage the housing (9) of a flexible reinforcement band, characterized in that the cross section of the passages ( 9) form concave ribs that extend radially (10) and comprise at least a non-concave part, inside the rubber housing (3).
    [0002]
    2. AIRLESS TIRE FOR VEHICLES according to claim 1, characterized in that it is formed by molding an assembly of the raw rubber housing (3) and tread (5A) of rubber on the wheel rim (2) and application of the reinforcement band under the body of rubber tread material to complete a solid tire (1), and cure the rubber under heat and pressure to fix the carcass (3) and reinforcement for the tread.
    [0003]
    3. AIRLESS TIRE FOR VEHICLES according to either of claims 1 or 2, characterized in that the reinforcement is a steel cable strap (4A) in a plurality of composite layers.
    [0004]
    4. Airless tire for vehicles according to claim 1, characterized in that secondary passages (9A) are provided through at least some of the non-concave parts in the ribs (10).
    [0005]
    5. AIRLESS TIRE FOR VEHICLES according to any one of the preceding claims, characterized in that the passages (9) through the tire (1) are inclined with respect to the axle thereof.
    [0006]
    6. VEHICLE-FREE AIR TIRE according to either of claims 4 or 5, characterized in that at least the openings in the passages (9) are designed to induce an air flow through it.
    [0007]
    7. Airless tire for vehicles according to any one of claims 3 to 6, characterized in that the steel cable reinforcement (4A) comprises rigid steel components coated with galvanized or coated with bronze.
    [0008]
    8. AIRLESS TIRE FOR VEHICLES according to claim 7, characterized in that the wire rope component (4A) is 2 mm in diameter.
    [0009]
    9. AIRLESS TIRE FOR VEHICLES according to either of Claims 7 or 8, characterized in that the steel cable strip (4A) comprises a pair of outer layers, with the cable components parallel to the sides of the housing (3) and a pair of inner layers having their cable components angled around the housing (3) in opposite directions.
    [0010]
    10. AIRLESS TIRE FOR VEHICLES according to claim 9, characterized in that the inclination of the cable components is 30 °.
    [0011]
    11. Airless tire for vehicles according to either of claims 1 or 2, characterized in that radial holes are provided in the housing (3) extending outward from the passages through the tread.
    [0012]
    12. Airless vehicle tire according to either of Claims 1 and 2, characterized in that an inner circumference of the housing (3) is shaped to extend between flanges on the wheel rim (2) forming a shallow channel (7) around the rim (2) and around a series of ribs (10) that project outwards along an outer surface
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    同族专利:
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    EP2855169A4|2016-03-16|
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    EA035298B1|2020-05-26|
    MY186736A|2021-08-16|
    PH12014502634B1|2015-01-26|
    AP2014008181A0|2014-12-31|
    JP6495818B2|2019-04-03|
    IN2014DN10993A|2015-09-25|
    NZ703444A|2016-11-25|
    AU2012260515A1|2015-01-22|
    KR101931696B1|2018-12-21|
    CL2014003193A1|2015-07-31|
    MX2014014209A|2015-05-11|
    CA2874529C|2020-01-07|
    PH12014502634A1|2015-01-26|
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    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-29| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-06-02| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-09-01| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/05/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    2021-04-06| B21F| Lapse acc. art. 78, item iv - on non-payment of the annual fees in time|Free format text: REFERENTE A 9A ANUIDADE. |
    2021-08-10| B24J| Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)|Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2622 DE 06-04-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |
    优先权:
    申请号 | 申请日 | 专利标题
    ZA201103770|2011-05-24|
    IBPCT/IB2012/052599|2012-05-24|
    PCT/IB2012/052599|WO2012160534A1|2011-05-24|2012-05-24|An airless tyre for vehicles|
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