{"id":646,"date":"2017-06-02T15:45:22","date_gmt":"2017-06-02T14:45:22","guid":{"rendered":"http:\/\/www.testpneumatik.eu\/blog\/?p=646"},"modified":"2022-05-30T18:42:26","modified_gmt":"2022-05-30T18:42:26","slug":"je-treba-menit-pneumatiky-jiz-na-3mm-sjetem-dezenu","status":"publish","type":"post","link":"https:\/\/dacktest.eu\/mag\/je-treba-menit-pneumatiky-jiz-na-3mm-sjetem-dezenu\/","title":{"rendered":"Je t\u0159eba m\u011bnit pneumatiky ji\u017e na 3mm sjet\u00e9m dez\u00e9nu?"},"content":{"rendered":"<p>V\u00a0posledn\u00edch n\u011bkolika m\u011bs\u00edc\u00edch se n\u011bkolik p\u0159edn\u00edch v\u00fdrobc\u016f pneumatik opakovan\u011b zasazovalo o zv\u00fd\u0161en\u00ed limitu minim\u00e1ln\u00ed povolen\u00e9 hloubky dez\u00e9nu ze\u00a01,6 mm na 3 mm. Logika v\u00a0tomto kroku je z\u0159ejm\u00e1, po sjet\u00ed pod 3 milimetry se p\u0159ev\u00e1\u017en\u011b na mokru rapidn\u011b sni\u017euj\u00ed j\u00edzdn\u00ed vlastnosti pneumatik a kampa\u0148 proto c\u00edl\u00ed na vy\u0161\u0161\u00ed bezpe\u010dnost na silnic\u00edch. Vzhledem k\u00a0tomu, \u017ee se zm\u011bnou maxim\u00e1ln\u00edho sjet\u00ed se zkr\u00e1t\u00ed \u017eivotnost pneumatik, se nicm\u00e9n\u011b vkr\u00e1d\u00e1 i dal\u0161\u00ed ot\u00e1zka \u2013 do jak\u00e9 m\u00edry jde v\u00fdrobc\u016fm skute\u010dn\u011b o vy\u0161\u0161\u00ed bezpe\u010dnost a ne o v\u011bt\u0161\u00ed odbyt pneumatik?<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\">\u2630<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69e249b24064c\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69e249b24064c\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/dacktest.eu\/mag\/je-treba-menit-pneumatiky-jiz-na-3mm-sjetem-dezenu\/#Michelin_vymenu_na_3_mm_odmita\" title=\"Michelin v\u00fdm\u011bnu na 3 mm odm\u00edt\u00e1\">Michelin v\u00fdm\u011bnu na 3 mm odm\u00edt\u00e1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/dacktest.eu\/mag\/je-treba-menit-pneumatiky-jiz-na-3mm-sjetem-dezenu\/#Testy_na_mokru_poukazaly_na_rozdily_mezi_levnymi_a_standardnimi_modely\" title=\"Testy na mokru pouk\u00e1zaly na rozd\u00edly mezi levn\u00fdmi a standardn\u00edmi modely\">Testy na mokru pouk\u00e1zaly na rozd\u00edly mezi levn\u00fdmi a standardn\u00edmi modely<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/dacktest.eu\/mag\/je-treba-menit-pneumatiky-jiz-na-3mm-sjetem-dezenu\/#Studie_TNO_a_VUFO_podporuji_vyroky_Michelinu\" title=\"Studie TNO a VUFO podporuj\u00ed v\u00fdroky Michelinu\">Studie TNO a VUFO podporuj\u00ed v\u00fdroky Michelinu<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/dacktest.eu\/mag\/je-treba-menit-pneumatiky-jiz-na-3mm-sjetem-dezenu\/#Nevyhoda_vymeny_na_3_mm_Vyssi_naklady_na_provoz_i_dopad_na_zivotni_prostredi\" title=\"Nev\u00fdhoda v\u00fdm\u011bny na 3 mm? Vy\u0161\u0161\u00ed n\u00e1klady na provoz i dopad na \u017eivotn\u00ed prost\u0159ed\u00ed\">Nev\u00fdhoda v\u00fdm\u011bny na 3 mm? Vy\u0161\u0161\u00ed n\u00e1klady na provoz i dopad na \u017eivotn\u00ed prost\u0159ed\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/dacktest.eu\/mag\/je-treba-menit-pneumatiky-jiz-na-3mm-sjetem-dezenu\/#Reseni_problemu_Zverejnovat_testy_se_sjetymi_pneumatikami\" title=\"\u0158e\u0161en\u00ed probl\u00e9mu? Zve\u0159ej\u0148ovat testy se sjet\u00fdmi pneumatikami\">\u0158e\u0161en\u00ed probl\u00e9mu? Zve\u0159ej\u0148ovat testy se sjet\u00fdmi pneumatikami<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Michelin_vymenu_na_3_mm_odmita\"><\/span>Michelin v\u00fdm\u011bnu na 3 mm odm\u00edt\u00e1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Mo\u017en\u00e1 pon\u011bkud p\u0159ekvapiv\u011b se v\u016f\u010di ideje zm\u011bny p\u0159\u00edpustn\u00e9 hloubky dez\u00e9nu vymezil Michelin, kter\u00fd sezval novin\u00e1\u0159e z\u00a0cel\u00e9 Evropy do sv\u00e9ho centra v\u00a0Clermontu, kde provedl velice detailn\u00ed anal\u00fdzu dan\u00e9 problematiky.<\/p>\n<p>Michelin toti\u017e poukazuje na to, \u017ee s\u00a0najet\u00fdmi kilometry se toti\u017e mohou jist\u00e9 j\u00edzdn\u00ed vlastnosti dokonce zlep\u0161ovat. P\u0159\u00edkladem m\u016f\u017ee b\u00fdt j\u00edzda na suchu, brzdn\u00e1 dr\u00e1ha se zde toti\u017e do ur\u010dit\u00e9 hranice se sjet\u00edm pneumatik zlep\u0161uje d\u00edky men\u0161\u00edmu pohybu blok\u016f. D\u00edky men\u0161\u00ed hmot\u011b a lep\u0161\u00edmu p\u0159enosu energie pak mohou \u010d\u00e1ste\u010dn\u011b sjet\u00e9 pneumatiky nab\u00eddnout i lep\u0161\u00ed valiv\u00fd odpor. Vym\u011bnit pneumatika na 3 mm m\u00edsto nyn\u011bj\u0161\u00edch 1,6 mm by tak znamenalo p\u0159ij\u00edt o stav s\u00a0nejlep\u0161\u00edmi j\u00edzdn\u00edmi vlastnostmi na suchu.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Testy_na_mokru_poukazaly_na_rozdily_mezi_levnymi_a_standardnimi_modely\"><\/span>Testy na mokru pouk\u00e1zaly na rozd\u00edly mezi levn\u00fdmi a standardn\u00edmi modely<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Pro demonstraci Michelin srovnal na 2 mm sjet\u00e9 a nov\u00e9 klasick\u00e9 pneu i levn\u00e9 pneumatiky. Celkem tedy \u010dty\u0159i modely porovn\u00e1val v\u00a0testech na 1 mm vysok\u00e9m vodn\u00edm filmu p\u0159i brzd\u011bn\u00ed z\u00a080 na 20 km\/h. U klasick\u00fdch pneu byla v\u00fdsledkem 19,2 metr\u016f dlouh\u00e1 brzdn\u00e1 s\u00a0nov\u00fdmi a 22,1 metr\u016f se sjet\u00fdmi. U levn\u00fdch model\u016f byly nam\u011b\u0159eny dr\u00e1hy 22,7 a 27,6 metr\u016f.<\/p>\n<p>P\u0159i testov\u00e1n\u00ed maxim\u00e1ln\u00ed rychlosti na okruhu bez nedot\u00e1\u010divosti byly op\u011bt v\u00fdsledky na 2 mm sjet\u00fdch klasick\u00fdch pneumatik prakticky identick\u00e9 s\u00a0nov\u00fdmi levn\u00fdmi pneu, oba modely dos\u00e1hly na rychlost 95 km\/h.<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.tyrereviews.co.uk\/images\/article\/Graph-wet-braking-experience-jpg.gif\" alt=\"3mm vs 1.6mm\" \/><\/p>\n<h2><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"Studie_TNO_a_VUFO_podporuji_vyroky_Michelinu\"><\/span>Studie TNO a VUFO podporuj\u00ed v\u00fdroky Michelinu<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vyvr\u00e1tit n\u00e1zory, \u017ee mezi sjet\u00fdm dez\u00e9nem a po\u010dtem nehod je p\u0159\u00edm\u00e1 souvislost, se sna\u017eily vyvr\u00e1tit ji\u017e dv\u011b studie renomovan\u00fdch organizac\u00ed. Prvn\u011b, report TNO pro Evropskou komisi v\u00a0roce 2014 do\u0161el k\u00a0z\u00e1v\u011bru, \u017ee z\u00a0nehodov\u00fdch dat vypl\u00fdv\u00e1, \u017ee zm\u011bna povolen\u00e9 hloubky dez\u00e9nu by nem\u011bla na po\u010det nehod \u017e\u00e1dn\u00fd v\u00fdrazn\u00fd vliv a hloubka 1,6 mm je v\u00a0sou\u010dasnosti nastavena dob\u0159e.<\/p>\n<p>Zpr\u00e1va VUFO z\u00a0roku 2017 pot\u00e9 poukazuje i na fakt, \u017ee zp\u0159\u00edsn\u011bn\u00ed krit\u00e9ri\u00ed pro hloubku dez\u00e9nu bude znamenat nutnost \u010dast\u011bji m\u011bnit pneumatik. To m\u016f\u017ee v\u00e9st\u00a0\u0159idi\u010de k\u00a0up\u0159ednostn\u011bn\u00ed levn\u00fdch pneumatik, kter\u00e9 i s\u00a0hlub\u0161\u00edm dez\u00e9nem vykazuj\u00ed hor\u0161\u00ed j\u00edzdn\u00ed vlastnosti ne\u017eli sjet\u00e9 pr\u00e9miov\u00e9 pneumatiky, jak ostatn\u011b uk\u00e1zal test p\u0159i brzdn\u00e9 dr\u00e1ze na mokru. Celkov\u011b by tak do\u0161lo sp\u00ed\u0161e ke zhor\u0161en\u00ed bezpe\u010dnosti na silnic\u00edch.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nevyhoda_vymeny_na_3_mm_Vyssi_naklady_na_provoz_i_dopad_na_zivotni_prostredi\"><\/span>Nev\u00fdhoda v\u00fdm\u011bny na 3 mm? Vy\u0161\u0161\u00ed n\u00e1klady na provoz i dopad na \u017eivotn\u00ed prost\u0159ed\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Celkov\u011b se rozd\u00edl 1,4 mm mezi sou\u010dasn\u00fdmi 1,6 mm a potenci\u00e1ln\u00edmi 3 mm odhaduje na 20% \u017eivotnosti pneumatiky. To ro\u010dn\u011b p\u0159edstavuje \u0159\u00e1dov\u011b miliardy eur z\u00a0pen\u011b\u017eenek \u0159idi\u010d\u016f.<\/p>\n<p>Dal\u0161\u00edm probl\u00e9mem je dopad na \u017eivotn\u00ed prost\u0159ed\u00ed. Kv\u016fli \u010dast\u011bj\u0161\u00ed v\u00fdm\u011bn\u011b pneumatik by se jejich ro\u010dn\u00ed spot\u0159eba zv\u00fd\u0161ila zhruba o 400 milion\u016f, co\u017e znamen\u00e1 prudk\u00fd n\u00e1r\u016fst odpadu spojen\u00e9ho s\u00a0jejich v\u00fdrobou v\u010detn\u011b 6,6 milion\u016f tun CO2. Krom\u011b vy\u0161\u0161\u00edch n\u00e1klad\u016f na provoz je tak t\u0159eba p\u0159ipo\u010d\u00edtat i mnohem v\u00fdrazn\u011bj\u0161\u00ed ekologickou stopu.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Reseni_problemu_Zverejnovat_testy_se_sjetymi_pneumatikami\"><\/span>\u0158e\u0161en\u00ed probl\u00e9mu? Zve\u0159ej\u0148ovat testy se sjet\u00fdmi pneumatikami<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Jako\u017eto \u0159e\u0161en\u00ed navrhuje Michelin zahrnout do test\u016f i vlastnosti p\u0159i sjet\u00ed pod 3 mm. Vzhledem k\u00a0tomu, \u017ee se kvality pneumatiky s\u00a0najet\u00fdmi kilometry m\u011bn\u00ed, m\u016f\u017ee toti\u017e kolonka s\u00a0vlastnostmi p\u0159i vy\u0161\u0161\u00edm najet\u00ed d\u00e1vat \u0159idi\u010di lep\u0161\u00ed \u00fadaje o pneu a p\u0159itom sn\u00ed\u017eit finan\u010dn\u00ed i ekologick\u00fd dopad na \u0159idi\u010de.<\/p>\n<p>A\u010dkoliv argumenty ohledn\u011b vy\u0161\u0161\u00ed bezpe\u010dnosti p\u0159i j\u00edzd\u011b na mokru je dozajista mo\u017eno ch\u00e1pat jako opr\u00e1vn\u011bn\u00e9, celkov\u011b Michelin prok\u00e1zal, \u017ee je dan\u00e1 problematika podstatn\u011b slo\u017eit\u011bj\u0161\u00ed a sou\u010dasn\u00e1 legislativa nab\u00edz\u00ed \u0159idi\u010d\u016fm dobrou alternativou mezi bezpe\u010dnost\u00ed a svobodou p\u0159i volb\u011b pneu.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u00a0posledn\u00edch n\u011bkolika m\u011bs\u00edc\u00edch se n\u011bkolik p\u0159edn\u00edch v\u00fdrobc\u016f pneumatik opakovan\u011b zasazovalo o zv\u00fd\u0161en\u00ed limitu minim\u00e1ln\u00ed povolen\u00e9 hloubky dez\u00e9nu ze\u00a01,6 mm na 3 mm. Logika v\u00a0tomto kroku je z\u0159ejm\u00e1, po sjet\u00ed pod 3 milimetry se p\u0159ev\u00e1\u017en\u011b na mokru rapidn\u011b sni\u017euj\u00ed j\u00edzdn\u00ed vlastnosti pneumatik a kampa\u0148 proto c\u00edl\u00ed na vy\u0161\u0161\u00ed bezpe\u010dnost na silnic\u00edch. Vzhledem k\u00a0tomu, \u017ee se zm\u011bnou [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":647,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[32],"tags":[68,96,105],"class_list":["post-646","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pneucyklopedie","tag-dezen","tag-kdy-menit-pneumatiky","tag-minimalni-hloubka-dezenu"],"acf":[],"_links":{"self":[{"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/posts\/646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/comments?post=646"}],"version-history":[{"count":1,"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/posts\/646\/revisions"}],"predecessor-version":[{"id":855,"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/posts\/646\/revisions\/855"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dacktest.eu\/mag\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/media?parent=646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/categories?post=646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dacktest.eu\/mag\/wp-json\/wp\/v2\/tags?post=646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}