• 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:
    1503027 Retreading tyres ITAL-RUBBER SRL 2 Dec 1975 [21 Jan 1975] 49535/75 Heading B7C A tread assembly for use in retreading a tyre comprises a premoulded tread 1, a perforated sheet 3 of vulcanizable bonding material containing an anti-scorching agent which prevents vulcanization below a temperature in the range 35‹ to 40‹ C., and a protective film 3a. The tread assembly is assembled in the apparatus of Fig. 2. The sheet 3 and superposed tread 1 are passed through a first pair of rollers 17 and then through a second pair of rollers 4, 5. The roller 5 has pointed projections 6 which perforate the sheet 3. The tread 1 and perforated sheet 3 are subsequently passed into vacuum chamber 7 to cause expulsion of any air located between the tread and the sheet, or in the perforations of the sheet. Before the tread and sheet leave the vacuum chamber, the protective film 3a is applied to the free surface of the sheet to prevent air from returning to the perforations of the sheet. In the retreading process using the tread assembly, the protective film 3a is first removed and then the tread 1 and sheet 3 are applied to the rasped surface 2a, Fig. 3, of the tyre 2. A protective casing 8 is positioned around the tyre, and the tyre is placed in a vulcanizing oven 12. The vulcanizing oven is provided with a pipe 15 for use in inflating the tyre, and with a pipe 13 for use in evacuating the interior of the protective casing. Vulcanization to vulcanize the sheet 3 is carried out at about 100‹ C. by pressurizing the oven with a heating fluid.
    公开号:SU938734A3
    申请号:SU752306352
    申请日:1975-12-30
    公开日:1982-06-23
    发明作者:Италиана Бениньи
    申请人:Итал-Раббер С.Р.А.(Фирма)；
    IPC主号:
    专利说明:

    (5) METHOD OF RESTORING A FALSE TIRE
    one
    The invention relates to the rubber industry, in particular to methods for restoring a worn tire.
    There is a known method of restoring a worn-out tire by molding the protector, placing it on the tire, followed by crimping and vulcanisation.
    However, this method does not provide a sufficiently high quality tire repair (the presence of cavities and a bubble on the interface of the worn-out tire and tread).
    The purpose of the invention is to improve the quality of repair.
    The goal is achieved by the fact that according to the method of restoring a worn tire by molding a tread, putting it on the tire with subsequent crimping and vulcanization, before applying to the tread of the fifth fifth rolled sheet, an adhesive rubber mixture containing a reagent to delay its premature vulcanization at , with simultaneous perforation of the sheet and after firing.
    Air is evacuated from the tread and tire contact surface.
    The following is the composition of the reagents used to make a standard sheet of adhesive material suitable for the majority of currently manufactured tires. including:
    Natural rubber
    or polyisoprene 100
    Zinc Oxide 5-10
    Stearic acid. 0.5-1.2:
    Antioxidant
    4poly-2-3-trimethyldihydroquinaldine) 1
    Antiozone (I-phenyl-N-cyclohexyl paraphenyleneideamine) 1-2
    Rosin5-10
    Co-vulcanizable resins ((yligalethylphenol) 15 Drug reagents (liquid maro n - and n de novo resin) Weldable synthetic. Kauchuk (polymer 780) Insoluble seAxelerators (diphenylguanidine and mercaptobenzotriazole). Fig. 1 is a schematic diagram of the production of an adhesive sheet, the mounted leakage of Fig. 3 is completed by a torus,
    The working operations that allow the manufacture of an adhesive sheet material consist of pre-crushing (mixing the rubber composition with simultaneous mechanical processing) of peptization to obtain such a degree of viscosity. H-Goby during the subsequent mixing operation with reinforcing, filling and vulcanizing agents, the latter could be le | to put into the mixture. The mixture is then incubated for 12 hours, and the dosing and mixing of the components that make up the mixture, including vulcanization agents, and accelerators, are carried out in open mixers at low temperature.
    The second exposure is carried out for 12 hours in order to achieve a proper degree of diffusion of the reactants and inert substances that make up the mixture. Vulcanizing reagents and accelerators in open mixers are mixed into the mixture at low temperatures ().
    Calendered sheets of small thickness and cut sheets to the size corresponding to the size of the tread on which they should be applied.
    权利要求:
    Claims (2)
    [1]
    Sheet 3 is applied to the smooth surface Ta of the pre-stamped tread 1, on the contact surface of which a special rubber-based binder is applied. 4 The high content of co-vulcanized resins makes it possible to obtain a stable product that retains its adhesive qualities regardless of anything. Adding a suitable amount of reagent, preventing premature vulcanization, eliminates any danger of undesired vulcanization reactions and allows the sheet 3 of adhesive material to be applied to the tread 1 to remain unchanged over time, so that ... properties a subassembly consisting of a tread and a sheet of adhesive material. Sheet 3 manufactured according to the above composition and subjected to rheometric tests according to the Monsanto method using a vulcanized sample, has the following physical characteristics, the data are given in the table. 5 When applying a sheet of adhesive material to the tread, it is necessary to pass the protector 1 and the sheet 3 not only through the usual pulling and pressure rolls, but also through two rollers and 5 which have a row of sharp needles 6 arranged according to size on the entire rolling surface in order to perforate the sheet 3 fio of the tread surface 1a V, after which the sheet and the projector are passed through the vacuum chamber 7 both to remove air trapped between the remote protector 1 and the sheet of adhesive material through the perforation of the sheet 3 and for removal and air from the perforations. Before the pre-assembled element leaves the tread and sheet of adhesive material from chamber 7, the free surface of sheet 3 is covered with a protective film made of polyethylene or some other synthetic material that is applied to the sheet to prevent air from returning to the perforation on sheet 3 and for preserving the chemical-physical characteristics of the specified sheet against dust and impurities. At the stage of tire repair, the pre-assembled element from the tread and sheet of adhesive material has already been prepared and ready for applying the rolling surface of the previously trimmed, flattened and treated tire tire cage 2. This application is carried out in accordance with the known technology and without any danger of slipping tread (sheet of adhesive material relative to the carcass of the tire 2), mainly due to the fact that sheet 3 already forms a single whole with the protector 1. This tire is mounted on a special rim 10. As soon as it is placed in a protective casing 8, which covers the tire in such a way that the protector 1 and the side walls 9 fit. The edges of the tread are kept tightly pressed against the specified side walls of the rim 10. provided with a valve 11, which releases air to the outside, trapped inside the skin during its fitting to the tire
    [2]
    2. Upon completion of this operation, tire 2 is placed inside the curing oven 13. Next, the actual vulcanization process is carried out. The protective skin 8 is connected to the vacuum device 1 by means of the tube 13 in such a way as to ensure that the air is completely evacuated from the inside of the casing, even that air which naturally traps in the recesses of the prrttector 1. Then, using the tube 15, air is forced into the inside of the casing of the tire 2 or inside the inner chamber 16 in said tire until a pressure roughly corresponding to the normal operating pressure in the tire is reached. After this, furnace 12 begins to operate, ensuring that the vulcanization process proceeds at an optimum temperature of 100 ° C) using a suitable heating medium (preferably hot air or steam) and the furnace is compressed to a pressure slightly lower than the tire pressure, until until the necessary conditions are reached that ensure the start of the vulcanization process, which determines the proper connection between the tread and the tire carcass while guaranteeing the physicochemical characteristics of the vulcanized material. The presence of a curing retardant at 3S (fC. Among the reagents constituting the sheet of adhesive material provides the advantage of the initial delay of the cure reaction in such a way that allows operator intervention even after the kiln starts operating, especially in cases where an error in the processing of the tire after its loading into the kiln for vulcanization. Geometric tests according to the Monsanto method, performed at 100 ° C, show that, unlike the sheets of adhesive material known in Nowadays, the sheets obtained in accordance with the invention remain completely stabilized (against vulcanisation) at various temperatures up to Cu and have a vulcanization delay of approximately 20-30 minutes. 793 Using the proposed method significantly simplifies the tire repair method, while significantly improving the quality of repair (more tight connection of a worn tire with a Repair Material). Claims of the invention A method for restoring a worn tire by molding a tread, by applying it to a tire with emitting crimping and vulcanization, distinguished by the fact that, in order to improve the quality of repairs, before applying to the tread, they fasten a sheet of adhesive rubber compound containing a reagent to delay its premature vulcanization at, with simultaneous perforation of the sheet and after crimping the wire t evacuating air from the surface of the tread and tire contact. Sources of information taken into account in the examination 1. Australian patent №, cl. 97-83, published, 1973 (prototype).
    // la
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    Фцг.З
    类似技术:
    公开号 | 公开日 | 专利标题
    US3933566A|1976-01-20|Tires, etc.
    EP0127998A2|1984-12-12|Tubeless pneumatic tyre
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    EP2271480B1|2018-10-31|Sealant material composition, self-sealing pneumatic tire, and preparation thereof
    US3753821A|1973-08-21|Method of retreading pneumatic tires without a mold
    US3933553A|1976-01-20|Tires, etc
    RU2239559C2|2004-11-10|Method of manufacture, molding and vulcanization of tires for wheels of vehicles
    US20220024166A1|2022-01-27|Methods for retreading tires employing cushion gum with stable dinitrile oxide cure system
    US3143449A|1964-08-04|Tubed innerliner for bagless cured tires
    US2779386A|1957-01-29|Method of vulcanizing tubeless tires
    GB1467609A|1977-03-16|Method of forming a tread on a tyre
    US4178198A|1979-12-11|Method and apparatus for treading tires
    US4756782A|1988-07-12|Method for retreading tires
    US4186042A|1980-01-29|Puncture sealing tire
    US4012479A|1977-03-15|Method of forming belted radial tires from a cylindrical tire band
    US2795262A|1957-06-11|Method of producing a pneumatic tire
    CA1068460A|1979-12-25|Irradiation of rubber in the manufacture of tires
    US4166883A|1979-09-04|Tires with liners cured by irradiation
    US4851063A|1989-07-25|Radiation cure of tire plies in a continuous operation
    US3802977A|1974-04-09|Method of retreading tires
    US4116605A|1978-09-26|Apparatus for producing retreading envelopes
    US7114935B2|2006-10-03|Curing envelope for and method of retreading tires
    US2033962A|1936-03-17|Punctureproof tube and method of making same
    US1132971A|1915-03-23|Treatment of materials.
    US1308014A|1919-06-24|Treatment of vtocanizable materials
    同族专利:
    公开号 | 公开日
    DE2553975A1|1976-07-22|
    AT349918B|1979-05-10|
    IL48815D0|1976-03-31|
    FR2298429B1|1981-04-30|
    AR206369A1|1976-07-15|
    SE7513550L|1976-07-22|
    CA1078120A|1980-05-27|
    BR7508773A|1977-04-05|
    FR2298429A1|1976-08-20|
    ES443860A1|1977-04-16|
    IT1028591B|1979-02-10|
    AU1009776A|1977-07-14|
    ATA939875A|1978-09-15|
    JPS5193982A|1976-08-18|
    SE428279B|1983-06-20|
    IL48815A|1977-11-30|
    CH591947A5|1977-10-14|
    GB1503027A|1978-03-08|
    NL7515035A|1976-07-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2466022C1|2008-08-27|2012-11-10|Мишлен Решерш Э Текник С.А.|Method of decreasing tread shrinkage in curing|DE1206149B|1960-11-29|1965-12-02|Hoechst Ag|Process for the production of laminated bodies|
    NL277764A|1961-05-01|
    FR1370425A|1962-10-04|1964-08-21|Bandag Inc|Retreading method and apparatus|
    FR1525435A|1967-05-08|1968-05-17|Bandag Inc|Single-layer material for retreading tire casings and method of using this material|
    DE2145574C3|1971-09-11|1978-12-21|Vakuum Vulk Holdings Ltd., Nassau|Method and binding rubber layer for renewing the tread of a worn pneumatic or solid rubber tire|US4092196A|1976-03-22|1978-05-30|The Goodyear Tire & Rubber Company|Retreading and rebuilding of radial tires|
    DE3333523C2|1983-09-16|1986-06-26|Bandag Inc., Muscatine, Ia.|Method for renewing the tread of a tire and for renewing damaged belts of the carcass of the tire|
    DE3404940C2|1984-02-11|1997-05-07|Ellerbrock Reifenrunderneuerun|Method and device for renewing the side walls of vehicle tires on one or both sides by applying a new rubber layer by means of shapeless vulcanization|
    EP0258262A1|1985-12-19|1988-03-09|Builtrite Productions Pty. Limited|Refurbishment of fibreglass panels|
    ITTO20060102A1|2006-02-14|2007-08-15|Bridgestone Corp|METHOD AND PLANT FOR THE CONSTRUCTION OF A TREAD STRIP|
    DE102006029959B4|2006-06-29|2010-04-08|Siemens Ag|Method for producing a plate-shaped insulation support provided with an adhesive layer for a gradient coil of a magnetic resonance apparatus, and device for producing such an insulation support|
    EP3094501A4|2014-01-16|2017-09-06|Bridgestone Americas Tire Operations, LLC|Tire with laminate and method of making same|
    EP3072673B1|2015-03-24|2018-02-07|Bridgestone Corporation|Pre-vulcanized tread strip assembly useful for the cold retreading of a tyre|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT331475A|IT1028591B|1975-01-21|1975-01-21|PERFECTED PROCEDURE FOR THE REBUILDING OF A WORN TIRE BY APPLICATION DIRECTLY TO THE TIRE HOUSING OF A PRE-PRINTED TREAD|
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