TR201606722T1 - Pnömati̇k radyal lasti̇k - Google Patents

Pnömati̇k radyal lasti̇k Download PDF

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TR201606722T1
TR201606722T1 TR2016/06722T TR201606722T TR201606722T1 TR 201606722 T1 TR201606722 T1 TR 201606722T1 TR 2016/06722 T TR2016/06722 T TR 2016/06722T TR 201606722 T TR201606722 T TR 201606722T TR 201606722 T1 TR201606722 T1 TR 201606722T1
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belt
pneumatic radial
radial tire
cords
over
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TR2016/06722T
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Aksoy Kürşat
Anil Mertol Beki̇r
Fi̇dan Saadetti̇n
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Kordsa Teknik Tekstil As
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042—Reinforcements made of synthetic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
    • B60C9/2009—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords comprising plies of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C9/2204—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre obtained by circumferentially narrow strip winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C2009/1828—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers characterised by special physical properties of the belt ply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C2009/2038—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel using lateral belt strips at belt edges, e.g. edge bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C2009/2214—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre characterised by the materials of the zero degree ply cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C2009/2223—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre with an interrupted zero degree ply, e.g. using two or more portions for the same ply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C2009/2252—Physical properties or dimension of the zero degree ply cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C2009/2252—Physical properties or dimension of the zero degree ply cords
    • B60C2009/2261—Modulus of the cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C2009/2252—Physical properties or dimension of the zero degree ply cords
    • B60C2009/2266—Density of the cords in width direction
    • B60C2009/2271—Density of the cords in width direction with variable density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/22—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel the plies being arranged with all cords disposed along the circumference of the tyre
    • B60C2009/2252—Physical properties or dimension of the zero degree ply cords
    • B60C2009/2285—Twist structures

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

Buluş, yüksek hıza dayanıklı ve düşük flatspot (geçici lastik yassılaşması) özelliğine sahip ve polietilen terefitalat kuşak üstü takviye katmanına (6) sahip pnömatik radyal lastik (1) ile ilgilidir. Buluşun amacı, termal kısalma kuvvetinin arttırılması ile yüksek hız ve sıcaklıkta kordun kuşak (5) üzerindeki baskısının arttırıldığı bir pnömatik raydal lastik (1) gerçekleştirmektir.

Description

TARIFNAME PNÖMATIK RADYAL LASTIK Teknik Alan Bulus, yüksek hiza dayanikli ve düsük ilatspot (geçici lastik yassilasmasi) özelligine sahip ve polietilen terefitalat kusak üstü takviye katmanina sahip pnömatik radyal lastik ile ilgilidir. Önceki Teknik Kusak paketi üzerinde, ekvatoral düzlemle küçük bir açi yaparak yerlestirilmis (spiral olarak sarilmis) takviye malzemelerinin radyal lastiklerde özellikle yüksek hiz performansini iyilestirdigi bilinmektedir. Pnömatik radyal lastiklerde yüksek hiz dayanikliligini ve kullanim (handling) performansini iyilestirmek amaciyla, polimerik (nylon kordlarin serit halinde kusak üstü takviyesi (cap ply) olarak kusak paketi üzerine spiral olarak sarilarak kullanimi, uzun yillardan beri birçok lastik firmasi tarafindan uygulanmaktadir.
Söz konusu kord seritleri kalenderlenmis (kauçukla kaplanmis) kord bezinin serit halinde kesilmesiyle veya birbirine paralel tek kordlarin belirli bir ende ekstrüzyon prosesinde kauçuk kaplanmasiyla elde edilmektedir.
Kusak üstü takviyesinin lastikteki kullanim amaci, yüksek hizda kusak paketinde olusan santrifüj kuvvetin sebep Oldugu kusak katmanlari arasindaki ayrilmalari önleyerek lastigin yüksek hiz dayanimini artirmaktir. Özellikle kusak kenari ayrilmalarina (belt edge separation) karsi lastigin gösterdigi direncin büyüklügü, yüksek hiz dayanimi (high speed durability) için çok önemlidir.
Naylon kusak üstü takviye malzemesi olarak kullanildiginda, iki önemli dezavantaji söz konusudur. Bunlardan birincisi modulusun düsük olmasi nedeni ile birden fazla katman olarak kullanilma zorunlulugudur. Ikincisi ise polimer olarak yumusama sicakliginin (glass transition temperature) düsük olmasi nedeniyle, yüksek hizda isinan lastigin park halinde sogumasi sonucu lastikte yarattigi geçici geometrik deformasyon(geçici lastik yassilasmasi, tlatspot)dur.
Teknikte bilinen uygulamalardan US7584774 sayili Birlesik Devletler patent dokümaninda, lastikte yüksek hiz dayanimini artirmak ve geçici geometrik deformasyon (flatspot) problemini azaltmak amaciyla, kusak üstü takviye malzemesi olarak, yüksek moduluslu polietilen terefitalat kord kullanimi önerilmektedir. 160 °C`de, 29.4N°daki tanjant modulusun 2.5mN/dtex.%,den daha yüksek olmasini öngeren bu uygulamada, kordlarin vulkanizayon prosesi esnasinda kusak kauçugunu (coating rubber) kesme riski söz konusudur. Bu yüzden proses esnasindaki lastik çap artisinin (process expansion) maksimum %2 olmasi öngörülmektedir.
Lastigin yüksek hiz dayanimini (high speed durability) artirmak için kusak katmanlari üzerinde yer alan kusak üstü takviye kordlarinin, yüksek hizdaki santifüj kuvvetten kaynaklanabilecek lastik çapindaki artisa (tire growth) direnç göstermesi gerekir.
Kusak üstü takviye kordlarinda olusan bu direnç, A- vulkanizasyon prosesi sonunda, kusak üstü takviye kordlarinda olusan kuvvet/stres, (cold residual tension), B- yüksek hiz dolaysiyla yükselen kusak bölgesi sicakligi dolaysiyla meydana gelen termal kisalma kuvveti(thermal shrinkforce), C- ve sözkonusu sicakliktaki kord modulusunun olusturdugu dirençlerin toplamindan olusmaktadir.
Bulusun Kisa Açiklamasi Bulusun amaci, termal kisalma kuvvetinin arttirilmasi ile yüksek hiz ve sicaklikta kordun kusak üzerindeki baskisinin arttirildigi bir pnömatik radyal lastik gerçeklestirmektir.
Bu amaca ulasmak için, US7584774ldeki gibi yüksek moduluslu polietilen terefitalat yerine, daha düsük moduluslu polietilen terefitalat kullanilmasi öngörülmektedir. Ancak, bu polietilen terefitalat kordun termal kisalma kuvveti (thermal shrinkforce) yükseltilerek etkinligi artirilmistir. Yüksek hizla artan sicakliga bagli olarak polietilen terefitalat kordun modulusu düserken, termal kisalma kuvveti artmaktadir. Bulus konusu pnömatik radyal lastikte bulunan polietilen terefitalat korddaki bu artis, önceki teknige (US7584774) göre çok daha yüksektir.
Bulusun Ayrintili Açiklamasi Bu bulusun amacina ulasmak için gerçeklestirilen “Pnömatik radyal lastik” ekli sekillerde gösterilmis olup; bu sekillerden: Sekil 1 - Polietilen terefitalat kordun 160 °C7deki kopma-uzama egrisi verilmistir.
Sekil 2 - Bulus konusu pnömatik radyal lastigin kesit görünüsüdür.
Sekillerdeki parçalar numaralandirilmis olup karsiliklari asagida verilmistir Pnömatik radyal lastik Lastik topuk çemberi Kusak üstü takviye katmani Kusak kenari takviye katmani Bulus konusu pnömatik radyal lastik (l), yüksek hiz dayanimini(high speed durability) artirmak icin, özel heat-set prosesi uygulanarak termal kisalma kuvveti (thermal shrinkage force) arttirilmis düsük moduluslu polietilen terefitalat kord ile olusturulan kusak üstü takviye seridlerine sahiptir.
Bir isil islem olan bu heat-set prosesi polietilen terefitalat kordun 220-240°C da da %1 ile %5 arasinda gerilmesini(uzatilma, cold stretching) kapsar.Bu proses kord modulusunu belirli degerler arasinda tutarken (160°C da 2.0-2.5mN/dtex.% araliginda), 177°C daki termal kisalma kuvvetini 2.0mN/dtex`in üzerine çikarir.
Heat-set prosesinde, polietilen terefitalat kordlar ayni zamanda RFL dip solüsyonu ile muamele edilerek lastikle yapisma özelligine kavusturulurlar. Polimer yumusama sicakligi (glass transition temperature), naylon 6.6 dan yüksek olan polietilen terefitalat, naylon 6.6 ya göre lastikte daha az geçici yassilasmayaülatspot) yol açar.
Bulus konusu pnömatik radyal lastikte (l) kullanilan takviye seritlerini olusturan polietilen terefitalat kordlar, 160 °C”da %3 ila %5 uzamalar arasindaki sekant modulus degeri 2.0-2.5 mN/dtex.% araligindadir. Diger bir deyisle bu degerler, sekil-1 de A ve B noktalarini birlestiren dogrunun egimini (%1 uzama için) ifade ederler. Sekant modulus degerinin hesaplanmasi su sekilde gerçeklestirilmektedir: Sekant m0dulus=(%5 LASE-%3 LASE)/(d0grusal kord yogunlugu ).(5-3) LASE: Load At Specified Elongation (belirli bir uzamadaki yük) (mN) Dogrusal kord yogunlugu; bir ipligin 10.000 metre uzunlugunun gram degeri Uzama araligi (5-3); % uzama degerleridir.
Bulus konusu pnömatik radyal lastiginde (l), yüksek hiz ve sicaklikta kordun kusak üzerindeki baskisini artirmak amaci ile termal kisalma kuvveti artirilmis olup 177 oC7deki degeri 2.0mN/dtex`in üzerine çikarilmistir. 2.5mN/dtex.% in üzerindeki modulus lastigin üretim prosesi esnasinda asiri gergin kordlara yol açabilir. 2.0mN/dtex.% in altindaki modulus ise genellikle beraberinde termal kisalma kuvvetinde de azalmaya yol açacagindan kusak üzerinde yeterli baskiyi temin edemez. Termal kisalma kuvveti (thermal shrinkforce) sicakligin fonksiyonu olarak artis göstereceginden, 177 OC°deki minimum 2.0 mN/dtex lik deger, yüksek sicaklikta azalan kord modulusuna pozitif yönde katkida bulunarak kusak üzerinde yeterli baskinin olusmasina yardimci olur.
Kusak üstü takviye kordlari kusak üzerine tek veya çift kord olarak sarilabilecegi gibi, eni 5mm ila 30mm arasinda, tercihan 8mm ila 15mm arasinda degisen seritler halinde de sarilabilir. Bu seritler kauçukla kaplanmis (kalenderlenmis) olarak veya kauçukla kaplanmamis kullanima hazir (ready to use) olarak da uygulanabilir. Seritlerin lOmmilik eninde bulunan kord adedi, 5 ila 20 arasinda degisebilir.
Kusak üstü seridindeki PET kordlarin dogrusal yogunluklari (linear densities) 300 seridindeki PET kordlarin kord büküm seviyesi 100 ila 800 tpm (turns per meter, hüküm/metre), tercihan 200 ila 400 tpm arasinda degisebilir.
Bulus konusu pnömatik radyal lastikte (1), kordun 160 OC`deki sekant modulus degeri, geleneksel uygulamalara kiyasla daha düsüktür. Fakat sekant modulusundaki bu fark, yüksek termal kisalma kuvveti tarafindan dengelenmektedir. Bulus konusu pnömatik radyal lastikte (l) kullanilan polietilen terefitalat kusak üstü takviye kordu, 160 OC7de, %3 ila %5 uzamalar arasinda 2.5mN/dtex.%`in altinda, fakat 2.0mN/dtex.%`in üzerinde bir sekant modulusa sahiptir. Ayni zamanda ASTM D885`e göre l77°C da ölçülen termal kisalma kuvveti(thermal shrinkforce) 2.0 mN/dtex den büyüktür.

Claims (7)

    ISTEMLER
  1. . Yüksek hiz dayanimmi (high speed durability) ve yüksek hiz sonrasi park halindeki soguma sonucu, araç lastiginde olusan geçici yassilasmanin (flatspot) azaltilmasmi saglamak amaciyla, - 160°C”da, %3 ile %5 uzamalar arasindaki sekant modulusu 2.0 ile 2.5 mN/dtex.%”un arasinda olan, - 177 °C”daki termal kisalma kuvvetleri (thermal shrinkforce, ASTM
  2. D885`e göre) 2.0mN/dtex`in üzerinde olan ve, ve müteakiben 140-200 °C°da %1 ile %5 arasinda gerilmesini (uzatilma, cold stretching) yapilarak elde edilen polietilen terefitalat kordlardan ile olusturulan kusak üstü takviye seridi ile karakterize edilen pnömatik radyal lastik (1).
  3. . Tek veya cift kordlarin veya eni 5mm ila 30mm degisen kusak üstü takviye seritlerinin spiral olarak sarimindan elde edilen kusak üstü takviye seridi ile karakterize edilen Istem ldeki gibi bir pnömatik radyal lastik 10mm”lik eninde bulunan kord adedi, 5 ila 20 arasinda degisen kusak üstü takviye seridi ile karakterize edilen yukaridaki istemlerden herhangi birindeki gibi bir pnömatik radyal lastik (1).
  4. . Dogrusal yogunluklari (linear densities) 300 ila 6000 dtex arasinda degisen polietilen terefitalat(PET) kordlarma sahip kusak üstü takviye seridi ile karakterize edilen yukaridaki istemlerden herhangi birindeki gibi bir pnömatik radyal lastik (l).
  5. . Kord hüküm seviyesi 100 ila 800 tpm (turns per meter, hüküm/metre) arasinda degisen PET kordlarina sahip kusak üstü takviye seridi ile karakterize edilen yukaridaki istemlerden herhangi birindeki gibi bir pnömatik radyal lastik (1).
  6. 6. Çelik kusak paketi üzerine, kusak üstü takviye katman1(cap ply) olusturmak amaci ile ekvatoral düzlemle O ile 5O arasinda bir açi ile spiral olarak sarilan kusak üstü takviye seridi ile karakterize edilen yukaridaki istemlerden herhangi birindeki gibi bir pnömatik radyal lastik (l).
  7. 7. Kusak üstü takviye takviye katmaninin eni, altindaki kusak paketi enine esit veya daha büyük olmasi ile karakterize edilen yukaridaki istemlerden herhangi birindeki gibi bir pnömatik radyal lastik( 1).
TR2016/06722T 2013-12-25 2014-12-23 Pnömati̇k radyal lasti̇k TR201606722T1 (tr)

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FR3040912A1 (fr) * 2015-09-16 2017-03-17 Michelin & Cie Pneumatique comportant des cables d'armatures de carcasse presentant un bas taux de carbone
EP3509873A1 (en) * 2016-12-28 2019-07-17 Kordsa Teknik Tekstil Anonim Sirketi Bi-elastic polyester cap ply cord
WO2018124985A1 (en) * 2016-12-28 2018-07-05 Kordsa Teknik Tekstil Anonim Sirketi Polyester cap ply cord
WO2018139763A1 (ko) * 2017-01-25 2018-08-02 (주)효성 폴리에스터 타이어 코드와 이를 이용한 레이디얼 타이어
JP7151217B2 (ja) * 2018-07-03 2022-10-12 横浜ゴム株式会社 空気入りラジアルタイヤ
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JP3555809B2 (ja) * 1995-06-19 2004-08-18 株式会社ブリヂストン ラジアルタイヤ
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