TW202248040A - Tire body of tire preventing uneven wearing - Google Patents
Tire body of tire preventing uneven wearing Download PDFInfo
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- TW202248040A TW202248040A TW110120632A TW110120632A TW202248040A TW 202248040 A TW202248040 A TW 202248040A TW 110120632 A TW110120632 A TW 110120632A TW 110120632 A TW110120632 A TW 110120632A TW 202248040 A TW202248040 A TW 202248040A
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本發明係關於一種輪胎的胎體,特別係指一種胎面可以預防偏磨耗的胎體。The invention relates to a carcass of a tire, in particular to a carcass whose tread can prevent partial wear.
現有的輪胎在接觸地面時,由於胎肩部份的花紋塊外側周向長度不足,接觸地面的邊緣會形成圓弧狀,這會導致異常磨耗。尤其是直溝花紋的輪胎,容易在胎肩產生偏磨耗現象,導致磨耗中後期,胎面尚未磨耗完畢,卻因為偏磨耗問題而必須提早卸胎。When the existing tires contact the ground, due to the lack of circumferential length of the pattern block at the tire shoulder part, the edge of the tire contacting the ground will form an arc shape, which will cause abnormal wear. Especially tires with straight groove patterns are prone to partial wear on the shoulders, resulting in the middle and late stages of wear. The tread has not yet been worn out, but the tire must be unloaded early due to partial wear.
於是有美國專利公告號US 09987883 B2提供一種「Pneumatic Tire」,主要是透過在胎肩部分設計第二段輪廓(profile),以增加胎肩花紋塊的接地面積。Therefore, US Patent No. US 09987883 B2 provides a "Pneumatic Tire", mainly through the design of the second profile on the shoulder part to increase the contact area of the shoulder block.
以及有歐洲專利公開號EP 3315324 A1提供一種「Pneumatic Tire」,主要是透過設計胎肩花紋塊的中心凸起,以增加胎肩花紋塊的接地壓力。And European Patent Publication No. EP 3315324 A1 provides a "Pneumatic Tire", mainly through the design of the central protrusion of the shoulder block to increase the ground pressure of the shoulder block.
本發明人採用不同於上述專利案的技術手段,同樣可以解決輪胎異常磨耗的問題。The inventor adopts a technical means different from the above-mentioned patent case, which can also solve the problem of abnormal tire wear.
爰此,本發明人提出一種防偏磨耗之輪胎胎體,包含:一胎面及一胎肩,該胎肩設置於該胎面之外側,該胎肩有至少二弧部相鄰設置;所述弧部的高度往該胎肩的外側遞增。Therefore, the inventor proposes a tire carcass for preventing partial wear, comprising: a tread and a shoulder, the shoulder is arranged on the outer side of the tread, and at least two arcs are arranged adjacent to the shoulder; The height of the arc portion increases toward the outer side of the tire shoulder.
其中,所述弧部的高度介於該胎面之一主溝深度的2%至20%之間。Wherein, the height of the arc portion is between 2% and 20% of the depth of a main groove of the tread.
其中,該胎面上有複數主溝,所述主溝的數量介於三及五之間。Wherein, there are multiple main grooves on the tread, and the number of the main grooves is between three and five.
其中,所述弧部之其一的寬度介於相鄰之所述弧部之另一寬度的0.9倍至1.1倍之間。Wherein, the width of one of the arc portions is between 0.9 times and 1.1 times the width of the other adjacent arc portion.
其中,所述弧部的寬度往該胎肩的外側遞增。Wherein, the width of the arc portion gradually increases toward the outside of the tire shoulder.
進一步,相鄰之所述弧部間有一導角,該導角的半徑介於80毫米至120毫米之間。Further, there is a chamfer between the adjacent arcs, and the radius of the chamfer is between 80 mm and 120 mm.
進一步,該胎肩有一接地部,所述弧部設置在該接地部,且所述弧部由該接地部相鄰該胎面的最內側延伸至該接地部的最外側。Further, the shoulder has a grounding portion, the arc portion is disposed on the grounding portion, and the arc portion extends from the innermost side of the grounding portion adjacent to the tread to the outermost side of the grounding portion.
根據上述技術特徵可達成以下功效:According to the above-mentioned technical features, the following effects can be achieved:
1.胎肩設置至少兩塊的弧部,可使接地面積更平均,進而使輪胎的抗偏磨耗性能提升。1. There are at least two arcs on the tire shoulder, which can make the ground contact area more even, and then improve the anti-uniform wear performance of the tire.
2.弧部的高度及寬度都往遠離胎面的方向遞增,調整接地面積,可以有效改善輪胎胎肩的接地形狀,在提高防偏磨耗性能的同時,維持輪胎的抓地性能。2. The height and width of the arc are increasing away from the tread. Adjusting the contact area can effectively improve the contact shape of the tire shoulder, improve the anti-uniform wear performance and maintain the grip performance of the tire at the same time.
3.相鄰的弧部之間設置有導角,減少應力集中。3. A chamfer is provided between adjacent arcs to reduce stress concentration.
4.弧部從接地部的最內側延伸至最外側,確保接地部的邊緣也有弧部可以改善接地形狀。4. The arc extends from the innermost to the outermost side of the ground, ensuring that the edge of the ground also has an arc to improve the shape of the ground.
綜合上述技術特徵,本發明防偏磨耗之輪胎胎體的主要功效將可於下述實施例清楚呈現。Based on the above technical features, the main functions of the anti-uniform wear tire carcass of the present invention will be clearly presented in the following examples.
請參閱第一圖,係揭示本發明之第一實施例。本發明是一種防偏磨耗之輪胎胎體,可以應用在各種車輛之一輪胎上。該防偏磨耗之輪胎胎體包含一胎面1及一胎肩2。Please refer to the first figure, which discloses the first embodiment of the present invention. The invention is a tire carcass for preventing partial wear, which can be applied to tires of various vehicles. The anti-uniform wear tire carcass includes a
該胎面1包含複數主溝11,該胎肩2包含至少二弧部21及一接地部22,該胎面1及該胎肩2藉由所述主溝11彼此相鄰,在本實施例中,該胎面1上之所述主溝11的數量介於三及五之間,所述弧部21數量至少為二,實際實施時,所述主溝11及所述弧部21的數量皆不限於此。所述弧部21彼此相鄰的設置在該接地部22,且所述弧部21由該接地部22相鄰該胎面1的最內側延伸至該接地部22的最外側。所述弧部21的高度介於該胎面1所述主溝11之一主溝深度GD的2%至20%之間,所述弧部21之其一的寬度介於相鄰之所述弧部21之另一的寬度的0.9倍至1.1倍之間,且所述弧部21的高度及寬度皆往該胎肩2的外側遞增,可以增加所述弧部21的一接地面積。The
當該胎面1及該接地部22接觸一地面時,由於所述弧部21由該接地部22的最內側延伸至最外側,可以確保該接地部22的邊緣也有所述弧部21,並藉由所述弧部21改善該接地部22的接地形狀。When the
請參閱第二圖,在該輪胎實施狀態下,將接觸該地面的該防偏磨耗之輪胎胎體劃分為五塊,每一塊該防偏磨耗之輪胎胎體沿該輪胎之軸向皆具有各自的寬度,並在兩側及中央的三塊該防偏磨耗之輪胎胎體上依序分別標示為一第一胎體101、一第二胎體102及一第三胎體103,該第一胎體101、該第二胎體102及該第三胎體103分別具有實際接觸該地面的一接地寬度。要特別說明的是,第二圖為由下往上看的示意圖,於圖式中未將該輪胎之詳細構件繪出,僅簡略畫出該防偏磨耗之輪胎胎體的外型做為示意。Please refer to the second figure, in the implementation state of the tire, the tire carcass for preventing partial wear in contact with the ground is divided into five pieces, each of which has its own tire carcass for preventing partial wear along the axial direction of the tire. The width of the tire carcass on both sides and the center is respectively marked as a
請參閱第三圖,並請搭配第一圖,本實施例中,所述弧部21的高度由該胎面1往該胎肩2的外側遞增,若將所述弧部21的高度由最接近該胎面1到最遠離該胎面1分別定為一第一高度H1、一第二高度H2及一第三高度H3,並以相對該主溝深度GD的比例表示,則本實施例中,該第一高度H1、該第二高度H2及該第三高度H3分別為5%GD、10%GD及15%GD,且所述弧部21的一第一寬度W1介於一第二寬度W2的0.9倍至1.1倍之間,該第二寬度W2又再介於一第三寬度W3的0.9倍至1.1倍之間。要補充說明的是,所述弧部21的高度是以所述弧部21的最高點分別作一切線,並由所述弧部21最接近該胎面1的一點做平行該切線的一基準線,分別量測該切線及該基準線之間的距離,即可得到該第一高度H1、該第二高度H2及該第三高度H3。該主溝深度GD為該輪胎剛出廠而未上路磨損時,所述主溝11的深度。Please refer to the third figure, and please match the first figure. In this embodiment, the height of the
請參閱第四圖,係揭示本發明之第二實施例。本實施例與第一實施例不同之處在於:本實施例中,所述弧部21a的高度,即該第一高度H1、該第二高度H2及該第三高度H3,分別為2%GD、4%GD及6%GD。Please refer to the fourth figure, which discloses the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that in this embodiment, the height of the
請參閱第五圖,係揭示本發明之第三實施例。本實施例與第一實施例不同之處在於:本實施例中,相鄰之所述弧部21b間有一導角23b,該導角23b的半徑介於80毫米至120毫米之間,本實施例的該導角23b半徑為100毫米。藉由設置該導角23b,可以減少應力集中在所述弧部21b的連接處。Please refer to the fifth figure, which discloses the third embodiment of the present invention. The difference between this embodiment and the first embodiment is that in this embodiment, there is a
請參閱第六圖,並請搭配第一圖,第六圖係揭示本發明之第四實施例。本實施例與第三實施例不同之處在於:本實施例中,所述弧部21c數量為二。若將所述弧部21c的高度由最接近該胎面1到最遠離該胎面1分別定為該第一高度H1及該第二高度H2,則本實施例中,該第一高度H1及該第二高度H2分別為5%GD及10%GD。本實施例中,相鄰之所述弧部21c間同樣有該導角23c,該導角23c半徑為100毫米。Please refer to the sixth figure, and please cooperate with the first figure, the sixth figure discloses the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment lies in that: in this embodiment, the number of
請參閱第七圖,並請搭配第一圖,第七圖係揭示本發明之第五實施例。本實施例與第三實施例不同之處在於:本實施例中,所述弧部21d數量增加為四。若將所述弧部21d的高度由最接近該胎面1到最遠離該胎面1分別定為該第一高度H1、該第二高度H2、該第三高度H3及一第四高度H4,則本實施例中,該第一高度H1、該第二高度H2、該第三高度H3及該第四高度H4分別為5%GD、10%GD、15%GD及20%GD。本實施例中,相鄰之所述弧部21d間同樣有該導角23d,該導角23d半徑為100毫米,所述弧部21d的該第三寬度W3介於一第四寬度W4的0.9倍至1.1倍之間。Please refer to the seventh figure, and please cooperate with the first figure. The seventh figure discloses the fifth embodiment of the present invention. The difference between this embodiment and the third embodiment is that in this embodiment, the number of the
請參閱第一圖至第三圖,將本發明之第一實施例至第五實施例以及未設置所述弧部21的一習知輪胎之條件與測量結果皆放入下表一進行比較,可以更清楚得知本發明的功效。其中,L1、L2及L3分別為該第一胎體101、該第二胎體102及該第三胎體103的該接地寬度,胎肩接地面積則是該第一胎體101及該第三胎體103的接地面積和。Please refer to the first figure to the third figure, the conditions and measurement results of the first embodiment to the fifth embodiment of the present invention and a conventional tire not provided with the
表一、不同條件下的接地長及胎肩接地面積
由上表一及第二圖可以得知,該習知輪胎的(L1+L3)/2/L2只有0.85,意味著該習知輪胎兩側之該第一胎體101及該第三胎體103的該接地寬度,即L1及L3,大幅小於中央之該第二胎體102的該接地寬度,即L2,也就是說該習知輪胎主要是以該第二胎體102接觸該地面,接地形狀會偏向圓形。再將該習知輪胎與本發明做比較,本發明之第一實施例至第五實施例的(L1+L3)/2/L2皆大於0.9,代表該輪胎以該第一胎體101、該第二胎體102及該第三胎體103共同平均接觸地面,接地形狀會偏向矩形,應力分布較平均,減少該輪胎的偏磨耗情形。其中,R1、R2及R3是指所述導角23b,23c,23d的半徑[所述導角23b,23c,23d請搭配第五圖至第七圖]:第三實施例有兩個所述導角23b,因此半徑各為R1及R2;第四實施例只有一個所述導角23c,因此半徑為R1;第五實施例則有三個所述導角23b,因此半徑分別為R1、R2及R3。It can be known from the above table 1 and the second figure that (L1+L3)/2/L2 of the conventional tire is only 0.85, which means that the
當將該習知輪胎的一接地長及該接地面積皆設為100%時,由上表可以看出本發明第一實施例至第五實施例大多具有更佳的性能,尤其是第三實施例,該接地長提升至110%,該接地面積也提升到114%,為本發明的最佳實施例,這是因為所述弧部21從該接地部22的最內側延伸至最外側,確保整個接地部22都有所述弧部21,可以使該輪胎的接觸面壓力更為平均,以及提高該輪胎的抗偏磨耗性能,且所述弧部21的高度及寬度都往遠離該胎面1的方向遞增以增加該接地面積,可以在提高防偏磨耗性能的同時,有效改善該胎肩2的接地形狀,進一步維持該輪胎的抓地性能。When the ground contact length and the ground contact area of this conventional tire are both set to 100%, it can be seen from the table above that most of the first to fifth embodiments of the present invention have better performance, especially the third embodiment For example, the grounding length is increased to 110%, and the grounding area is also increased to 114%, which is the best embodiment of the present invention, because the
請參閱第八圖至第十三圖,第八圖至第十二圖分別係本發明第一實施例至第五實施例接地時壓力分佈的模擬圖,第十三圖則係習知技術,也就是該習知輪胎接地時壓力分佈的模擬圖。由第八圖至第十二圖可以看出本發明可以平均該胎肩2的接地壓力[該胎肩2請搭配第一圖],減少接地壓力集中該胎肩2單側造成的偏磨耗情形,可以更直觀的看出本發明各實施例在防偏磨耗方面確實皆具有良好功效。再搭配第十三圖,更可以看出該習知輪胎在該胎肩2外側的該接地長較短,相較之下,本發明在該胎肩2外側的該接地長較長,尤其是第三實施例[第十圖]該胎肩2外側的該接地長甚至略大於內側的該接地長,本發明確實使該接地面積更平均,進而使該輪胎的抗偏磨耗性能提升。Please refer to the eighth figure to the thirteenth figure, the eighth figure to the twelfth figure are the simulation figures of the pressure distribution when the first embodiment to the fifth embodiment of the present invention are grounded respectively, and the thirteenth figure is a conventional technology. That is, the simulated diagram of the pressure distribution when the conventional tire touches the ground. From the eighth figure to the twelfth figure, it can be seen that the present invention can average the ground contact pressure of the tire shoulder 2 [please match the
綜合上述實施例之說明,當可充分瞭解本發明之操作、使用及本發明產生之功效,惟以上所述實施例僅係為本發明之較佳實施例,當不能以此限定本發明實施之範圍,即依本發明申請專利範圍及發明說明內容所作簡單的等效變化與修飾,皆屬本發明涵蓋之範圍內。Based on the description of the above-mentioned embodiments, it is possible to fully understand the operation of the present invention, use and the effect that the present invention produces, but the above-mentioned embodiments are only preferred embodiments of the present invention, and should not be used to limit the implementation of the present invention. The scope, that is, the simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention, all fall within the scope of the present invention.
101:第一胎體
102:第二胎體
103:第三胎體
1:胎面
11:主溝
2:胎肩
21,21a,21b,21c,21d:弧部
22:接地部
23b,23c,23d:導角
GD:主溝深度
H1:第一高度
H2:第二高度
H3:第三高度
H4:第四高度
W1:第一寬度
W2:第二寬度
W3:第三寬度
W4:第四寬度
101: First Carcass
102: second carcass
103: third carcass
1: Tread
11: main ditch
2:
[第一圖]係本發明第一實施例之剖視圖。[The first figure] is a sectional view of the first embodiment of the present invention.
[第二圖]係本發明第一實施例於實施狀態下之示意圖。[The second figure] is a schematic diagram of the first embodiment of the present invention under the implementation state.
[第三圖]係本發明第一實施例之部分放大圖。[The third figure] is a partial enlarged view of the first embodiment of the present invention.
[第四圖]係本發明第二實施例之部分放大圖。[Figure 4] is a partial enlarged view of the second embodiment of the present invention.
[第五圖]係本發明第三實施例之部分放大圖。[FIG. 5] is a partially enlarged view of the third embodiment of the present invention.
[第六圖]係本發明第四實施例之部分放大圖。[Figure 6] is a partial enlarged view of the fourth embodiment of the present invention.
[第七圖]係本發明第五實施例之部分放大圖。[Fig. 7] is a partially enlarged view of the fifth embodiment of the present invention.
[第八圖]係本發明第一實施例之模擬示意圖。[Figure 8] is a schematic diagram of the simulation of the first embodiment of the present invention.
[第九圖]係本發明第二實施例之模擬示意圖。[Figure 9] is a schematic diagram of the simulation of the second embodiment of the present invention.
[第十圖]係本發明第三實施例之模擬示意圖。[Figure 10] is a schematic diagram of the simulation of the third embodiment of the present invention.
[第十一圖]係本發明第四實施例之模擬示意圖。[Figure 11] is a schematic diagram of the simulation of the fourth embodiment of the present invention.
[第十二圖]係本發明第五實施例之模擬示意圖。[Figure 12] is a simulation diagram of the fifth embodiment of the present invention.
[第十三圖]係習知技術之模擬示意圖。[Figure 13] is a schematic diagram of a simulation of a conventional technology.
21:弧部 21: Arc
H1:第一高度 H1: first height
H2:第二高度 H2: second height
H3:第三高度 H3: third height
W1:第一寬度 W1: first width
W2:第二寬度 W2: second width
W3:第三寬度 W3: third width
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BR0009088A (en) * | 1999-03-18 | 2002-01-02 | Pirelli | Process to reduce the micro-slip phenomena tire / soil, and, tire for vehicle wheels |
EP1759887B2 (en) * | 2004-06-23 | 2018-04-11 | Bridgestone Corporation | Pneumatic tire |
TWI255240B (en) * | 2005-08-09 | 2006-05-21 | Cheng Shin Rubber Ind Co Ltd | Bicycle tire having assembled tread |
CN103264619B (en) * | 2013-03-15 | 2015-10-28 | 江苏大学 | A kind of wide base radial tread arc tire |
US20180345729A1 (en) * | 2015-11-25 | 2018-12-06 | The Yokohama Rubber Co., Ltd. | Pneumatic Tire |
TW201927591A (en) * | 2017-12-20 | 2019-07-16 | 正新橡膠工業股份有限公司 | Tire with warning indicator structure capable of being used as an indicator of and a warning function for tire change under normal use |
JP7124494B2 (en) * | 2018-07-03 | 2022-08-24 | 横浜ゴム株式会社 | Pneumatic tire and pneumatic tire manufacturing method |
CN111361359A (en) * | 2020-05-06 | 2020-07-03 | 正新橡胶(中国)有限公司 | Tire and cover tire thereof |
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