WO2018223737A1 - Hollow tire - Google Patents

Hollow tire Download PDF

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Publication number
WO2018223737A1
WO2018223737A1 PCT/CN2018/077878 CN2018077878W WO2018223737A1 WO 2018223737 A1 WO2018223737 A1 WO 2018223737A1 CN 2018077878 W CN2018077878 W CN 2018077878W WO 2018223737 A1 WO2018223737 A1 WO 2018223737A1
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WO
WIPO (PCT)
Prior art keywords
cavity
tire
toe
hollow tire
carcass
Prior art date
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PCT/CN2018/077878
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French (fr)
Chinese (zh)
Inventor
姚红霞
林附苍
耿碧波
管云杰
史恭允
杨银明
Original Assignee
建大橡胶（中国）有限公司
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Publication date
Application filed by 建大橡胶（中国）有限公司 filed Critical 建大橡胶（中国）有限公司
Publication of WO2018223737A1 publication Critical patent/WO2018223737A1/en

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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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/24—Wear-indicating arrangements
    • 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
    • B60C7/00—Non-inflatable or solid tyres

Definitions

  • the present invention relates to tires, and in particular to a hollow tire.
  • the tire can retain the normal tire grip and wear resistance.
  • the disadvantage is that after the wheel set is baked, the bearing butter will melt or lose, affecting the smooth rotation of the wheel set.
  • the profile size of the PU foam inner tube has a high dimensional requirement, depending on the size of the tire and the rim.
  • the other is a purely foamed tire.
  • This foamed tire has a solid carcass, and the connected tread pattern is made at one time.
  • this tire section has many small pores, and the tread also has small pores, so that it is not wear-resistant.
  • the other is a PU honeycomb tire, which is also less wear resistant than existing pneumatic tires and has a high cost.
  • the problem to be solved by the invention is to provide a hollow tire, which has reduced maintenance, has an anti-poke function, saves material used for the carcass, and is convenient for assembly with the rim.
  • the present invention provides a hollow tire.
  • the technical solution adopted by the present invention to solve the technical problem is:
  • a hollow tire comprising a crown, a carcass and a toe; wherein: a cavity is embedded in the carcass; wherein the cavity in the transverse section of the carcass accounts for 20% to 50% of the total cross-sectional area.
  • the invention does not need to be inflated, has little maintenance, and has an anti-poke function.
  • the material of the carcass can be the same grade of rubber as the tire of the conventional tire of the prior art, can have the same wear resistance as the existing tire, and the thickness of the carcass is thick, and the equivalent wearer layer has a thicker wear layer. Have a longer life cycle. The large thickness of the carcass determines that it is not easily pierced by sharp objects.
  • the proportion of the cavity area in the cross-section of the carcass is 20% to 50%. After less than 20%, the cavity is too small, the amount of rubber is too large, resulting in a high hardness of the hollow tire; At 50%, the cavity is too large, and the support system of the carcass is too thin to support the body.
  • the cavity has an elliptical cross section.
  • the beneficial effects of adopting the above technical solution are: the elliptical shape is simple and the process requirement is low.
  • the cavity cross section is a closed arc surrounded by a superior arc, a poor arc, and two common tangent lines between the superior arc and the inferior arc.
  • the beneficial effect of adopting the above technical solution is that the distance between the two common tangents and the outer contour of the tire is relatively large, that is, the thickness of the sidewall is relatively large, which provides strong sidewall support and prevents collapse of the hollow tire.
  • a limiting groove is formed between the toe and the carcass to cooperate with the rim.
  • the beneficial effect of adopting the above technical solution is that the hollow tire and the rim are firmly fixed.
  • the toe is provided with a circumferential groove.
  • the circumferential groove provides a deformation and contraction space for the toe, which facilitates the moderate deformation of the toe and is inserted into the rim to achieve assembly with the rim.
  • a vent hole is connected between the circumferential groove and the cavity.
  • the beneficial effect of using the above technical solution is that the load capacity of the hollow tire is almost completely given by its thick-walled structure.
  • the tire sinks under load, in order to keep the internal pressure of the cavity to zero, a certain point in the tire is required.
  • the hollow tire is running, the hollow tire is deformed by pressure, the volume of the cavity changes, and the air enters and exits the vent hole to convect heat dissipation and reduce overheat deformation of the tire.
  • the circumferential groove also serves to prevent the vent hole from being blocked.
  • the inner wall of the cavity is provided with an annular rib.
  • the beneficial effect of adopting the above technical solution is that the annular rib acts to strengthen the hollow tire structure on the basis of saving the carcass material.
  • the wear resistance of the crown material is higher than that of the carcass.
  • the beneficial effect of adopting the above technical solution is that the high wear resistance of the crown improves the service life of the hollow tire.
  • the crown is provided with at least one color distinguishing tape, and the color distinguishing tape has a thickness smaller than a thickness of the crown.
  • the beneficial effect of adopting the above technical solution is that since the thickness of the color distinguishing belt is smaller than the crown, in use, the color distinguishing belt is worn out before the crown, and the color distinguishing belt plays the role of prompting the degree of crown wear.
  • the toe has a rounded corner, and the rounded corner of the toe near the limiting groove is smaller than the rounded corner away from the limiting groove.
  • the beneficial effects of the above technical solution are as follows: the large toe of the toe is convenient for the toe to be embedded in the rim, and when the toe is loaded into the rim, the small toe of the toe serves to limit the withdrawal of the toe from the rim.
  • Figure 1 is a cross-sectional view of an embodiment of the present invention
  • Figure 2 is a cross-sectional view showing another embodiment of the present invention.
  • Figure 3 is a cross-sectional view showing another embodiment of the present invention.
  • Figure 4 is a cross-sectional view showing another embodiment of the present invention.
  • Figure 5 is a schematic view of another embodiment of the present invention inserted into a rim
  • Figure 6 is a cross-sectional view taken along line A-A of another embodiment of the present invention.
  • Fig. 7 is a cross-sectional view taken along line A-A of still another embodiment of the present invention.
  • Figure 1 shows a cross-sectional view of an embodiment of the present invention.
  • a hollow tire comprising a crown 7, a carcass 1 and a toe 4; a cavity 2 is penetrated in the carcass 1 , and the cavity 2 in the cross section of the carcass 1 accounts for 20% to 50% of the total area of the cross section.
  • the invention does not need to be inflated, has little maintenance, and has an anti-poke function.
  • the material of the carcass can be the same grade of rubber as the tire of the conventional tire of the prior art, can have the same wear resistance as the existing tire, and the thickness of the carcass is thick, and the equivalent wearer layer has a thicker wear layer. Have a longer life cycle. The large thickness of the carcass determines that it is not easily pierced by sharp objects.
  • the proportion of the cavity area in the cross-section of the carcass is 20% to 50%. After less than 20%, the cavity is too small, the amount of rubber is too large, resulting in a high hardness of the hollow tire; At 50%, the cavity is too large, and the support system of the carcass is too thin to support the body.
  • the cross-section of the cavity 2 has an elliptical shape 10a.
  • the beneficial effects of adopting the above technical solution are: the elliptical shape is simple and the process requirement is low.
  • the cavity 2 is surrounded by a superior arc 10c, a poor arc 10d, and two common tangent lines 10b between the superior arc 10c and the inferior arc 10d. Closed graphic.
  • the beneficial effect of adopting the above technical solution is that the distance between the two common tangents and the outer contour of the tire is relatively large, that is, the thickness of the sidewall is relatively large, which provides strong sidewall support and prevents collapse of the hollow tire.
  • a limiting recess 3 is provided between the bead 4 and the carcass 1 in cooperation with the rim 9.
  • the limiting groove 3 is symmetrically provided with two.
  • the beneficial effect of adopting the above technical solution is that the hollow tire and the rim are firmly fixed.
  • the toe 4 is provided with a circumferential groove 5 which is disposed at a center position of the toe 4 in the direction of the rim 9. As shown in Fig. 5, a schematic process of loading the toe 4 into the rim 9 when the circumferential groove 5 is compressed.
  • the beneficial effect of the above technical solution is that the circumferential groove provides a deformation contraction space for the toe to facilitate the moderate deformation of the fetal toe into the rim, and the assembly with the rim is achieved.
  • a vent hole 6 is connected between the circumferential groove 5 and the cavity 2, the vent hole 6 extends in a radial direction, and the circumferential groove 5 and the cavity 2 are penetrated by the vent hole 6 Air to the tank 5 and the cavity 2 can flow.
  • the beneficial effect of using the above technical solution is that the load capacity of the hollow tire is almost completely given by its thick-walled structure.
  • the tire sinks under load, in order to keep the internal pressure of the cavity to zero, a certain point in the tire is required.
  • the hollow tire is running, the hollow tire is deformed by pressure, the volume of the cavity changes, and the air enters and exits the vent hole to convect heat dissipation and reduce overheat deformation of the tire.
  • the circumferential groove also serves to prevent the vent hole from being blocked.
  • the inner wall of the cavity 2 is provided with an annular rib 11.
  • the beneficial effect of adopting the above technical solution is that the annular rib acts to strengthen the hollow tire structure on the basis of saving the carcass material.
  • the wear resistance of the material of the crown 7 is higher than that of the carcass 1.
  • the beneficial effect of adopting the above technical solution is that the high wear resistance of the crown improves the service life of the hollow tire.
  • the crown 7 is provided with at least one color distinguishing strip 8, the color of the color distinguishing strip 8 being different from the color of the crown 7, the thickness of the color distinguishing strip 8 being smaller than the thickness of the crown 7.
  • the beneficial effect of adopting the above technical solution is that since the thickness of the color distinguishing belt is smaller than the crown, in use, the color distinguishing belt is worn out before the crown, and the color distinguishing belt plays the role of prompting the degree of crown wear.
  • the toe 4 is provided with a first rounded corner 4a and a second rounded corner 4b.
  • the first rounded corner 4a is adjacent to the limiting recess 3, and the second rounded corner 4b Keep away from the limit groove.
  • the size of the first rounded corner 4a is smaller than the second rounded corner 4b.
  • the beneficial effects of the above technical solution are as follows: the large toe of the toe is convenient for the toe to be embedded in the rim, and when the toe is loaded into the rim, the small toe of the toe serves to limit the withdrawal of the toe from the rim.

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

Abstract

A hollow tire, comprising a tire crown (7), a tire body (1), and a bead toe (4). A cavity (2) runs through the tire body (1). In a cross-section of the tire body, the area of the cross-section of the cavity accounts for 20% to 50% of the total area of the cross-section of the tire body. The cross-section of the cavity is elliptical, or is a closed shape defined by a major arc, a minor arc and two common tangent lines between the major arc and the minor arc. A position-limiting groove (3) matching the wheel rim is disposed between the bead toe and the tire body. The bead toe is provided with a circumferential groove (5). An air hole is connected between the circumferential groove and the cavity. The tire toe has rounded corners, and the rounded corner near the position-limiting slot is smaller than the rounded corner away from the position-limiting slot. The hollow tire reduces the need for maintenance, has an anti-puncture function, reduces materials required for making the tire body, and can be fitted to a wheel rim with ease.

Description

一种空心胎Hollow tire 技术领域Technical field
本发明涉及轮胎，具体涉及一种空心胎。The present invention relates to tires, and in particular to a hollow tire.
背景技术Background technique
现有技术中存在三种区别于充气轮胎的轮胎。一种是由一般外胎与PU发泡内胎构成，这种轮胎可以保有正常轮胎抓地力和耐磨性，缺点就是经轮组烘烤后，轴承黄油会融化或损失，影响轮组转动顺畅性，PU发泡内胎的轮廓尺寸具备较高的尺寸要求，取决于外胎和轮圈的尺寸规格。另一种是纯发泡轮胎，这种发泡轮胎具备实心胎体，连通胎面花纹都一次性做出。但这种轮胎断面具备许多小气孔，胎面同时也具备小气孔，从而不耐磨。再一种是PU蜂窝轮胎，同样耐磨性不及现有充气胎，且成本较高。There are three types of tires that differ from pneumatic tires in the prior art. One is composed of a general tire and a PU foam inner tube. The tire can retain the normal tire grip and wear resistance. The disadvantage is that after the wheel set is baked, the bearing butter will melt or lose, affecting the smooth rotation of the wheel set. The profile size of the PU foam inner tube has a high dimensional requirement, depending on the size of the tire and the rim. The other is a purely foamed tire. This foamed tire has a solid carcass, and the connected tread pattern is made at one time. However, this tire section has many small pores, and the tread also has small pores, so that it is not wear-resistant. The other is a PU honeycomb tire, which is also less wear resistant than existing pneumatic tires and has a high cost.
发明内容Summary of the invention
本发明要解决的问题在于提供一种空心胎，减少维护，具备防戳功能，节约胎体使用材料，与轮圈装配方便。The problem to be solved by the invention is to provide a hollow tire, which has reduced maintenance, has an anti-poke function, saves material used for the carcass, and is convenient for assembly with the rim.
为解决上述问题，本发明提供一种空心胎，为达到上述目的，本发明解决其技术问题所采用的技术方案是：In order to solve the above problems, the present invention provides a hollow tire. To achieve the above object, the technical solution adopted by the present invention to solve the technical problem is:
一种空心胎，包括胎冠、胎体、胎趾；其中：胎体中贯穿有空腔；其特征在于：所述胎体横断面中空腔占比横断面总面积为20％至50％。A hollow tire comprising a crown, a carcass and a toe; wherein: a cavity is embedded in the carcass; wherein the cavity in the transverse section of the carcass accounts for 20% to 50% of the total cross-sectional area.
采用上述技术方案的有益效果是：本发明无需充气、维护少、具备防戳功能。胎体的材料可以采用与现有技术中的普通轮胎的外胎同样等级的橡胶，可以与现有外胎具备同样的耐磨性，且胎体厚度厚，等效具备了更厚的耐磨层，具备更久的使用周期。胎体厚度大决定了其不易被尖锐物刺穿。The beneficial effects of adopting the above technical solution are: the invention does not need to be inflated, has little maintenance, and has an anti-poke function. The material of the carcass can be the same grade of rubber as the tire of the conventional tire of the prior art, can have the same wear resistance as the existing tire, and the thickness of the carcass is thick, and the equivalent wearer layer has a thicker wear layer. Have a longer life cycle. The large thickness of the carcass determines that it is not easily pierced by sharp objects.
胎体横断面中空腔面积占比20％至50％是经过反复论证后得知的结果，若低于20％则空腔过小，则橡胶用量过大，造成空心胎硬度较高；若高于50％则空腔过大，胎体的支撑***过于单薄，不足以支撑车身。The proportion of the cavity area in the cross-section of the carcass is 20% to 50%. After less than 20%, the cavity is too small, the amount of rubber is too large, resulting in a high hardness of the hollow tire; At 50%, the cavity is too large, and the support system of the carcass is too thin to support the body.
作为本发明的进一步改进，所述空腔横断面呈椭圆形。As a further improvement of the invention, the cavity has an elliptical cross section.
采用上述技术方案的有益效果是：椭圆形形状较简洁，工艺要求低。The beneficial effects of adopting the above technical solution are: the elliptical shape is simple and the process requirement is low.
作为本发明的更进一步改进，所述空腔横断面为一条优弧、一条劣弧、以及优弧与劣弧之间的两条公切线围成的封闭图形。As a further improvement of the present invention, the cavity cross section is a closed arc surrounded by a superior arc, a poor arc, and two common tangent lines between the superior arc and the inferior arc.
采用上述技术方案的有益效果是：两条公切线与胎体外轮廓之间的距离较大，即胎壁厚度相对较大，提供了较强的胎壁支撑，防止空心胎垮塌形变。The beneficial effect of adopting the above technical solution is that the distance between the two common tangents and the outer contour of the tire is relatively large, that is, the thickness of the sidewall is relatively large, which provides strong sidewall support and prevents collapse of the hollow tire.
作为本发明的又进一步改进，所述胎趾与胎体间设有与轮圈配合的限位凹槽。As a further improvement of the present invention, a limiting groove is formed between the toe and the carcass to cooperate with the rim.
采用上述技术方案的有益效果是：便于空心胎与轮圈牢固固定。The beneficial effect of adopting the above technical solution is that the hollow tire and the rim are firmly fixed.
作为本发明的又进一步改进，所述胎趾上具备周向槽。As a further improvement of the present invention, the toe is provided with a circumferential groove.
采用上述技术方案的有益效果是：周向槽给胎趾提供了形变收缩空间，便于胎趾适度形变后塞入轮圈中，达成与轮圈的装配。The beneficial effect of the above technical solution is that the circumferential groove provides a deformation and contraction space for the toe, which facilitates the moderate deformation of the toe and is inserted into the rim to achieve assembly with the rim.
作为本发明的又进一步改进，所述周向槽与空腔之间连接有通气孔。As a further improvement of the present invention, a vent hole is connected between the circumferential groove and the cavity.
采用上述技术方案的有益效果是：空心胎的负荷能力几乎完全由其厚壁结构给予的，当轮胎在负荷下下沉时，为了使其空腔内压保持为零，需要在轮胎某个点上有一个穿过胎面的小孔。当空心胎运行时，空心胎受压变形，空腔体积变化，空气进出通气孔，起到对流散热，减少轮胎过热变形。周向槽也起到防止通气孔被堵塞的作用。The beneficial effect of using the above technical solution is that the load capacity of the hollow tire is almost completely given by its thick-walled structure. When the tire sinks under load, in order to keep the internal pressure of the cavity to zero, a certain point in the tire is required. There is a small hole through the tread. When the hollow tire is running, the hollow tire is deformed by pressure, the volume of the cavity changes, and the air enters and exits the vent hole to convect heat dissipation and reduce overheat deformation of the tire. The circumferential groove also serves to prevent the vent hole from being blocked.
作为本发明的又进一步改进，所述空腔内壁上具备环状筋。As a further improvement of the present invention, the inner wall of the cavity is provided with an annular rib.
采用上述技术方案的有益效果是：环状筋起到节约胎体材料的基础上强化空心胎结构的作用。The beneficial effect of adopting the above technical solution is that the annular rib acts to strengthen the hollow tire structure on the basis of saving the carcass material.
作为本发明的又进一步改进，所述胎冠材料的耐磨性高于胎体所用材料。As a further improvement of the present invention, the wear resistance of the crown material is higher than that of the carcass.
采用上述技术方案的有益效果是：胎冠的高耐磨性提高空心胎的使用寿命。The beneficial effect of adopting the above technical solution is that the high wear resistance of the crown improves the service life of the hollow tire.
作为本发明的又进一步改进，所述胎冠上具备至少一条颜色区分带，所述颜色区分带的厚度小于胎冠的厚度。As a further improvement of the present invention, the crown is provided with at least one color distinguishing tape, and the color distinguishing tape has a thickness smaller than a thickness of the crown.
采用上述技术方案的有益效果是：因为颜色区分带的厚度小于胎冠，使用中，颜色区分带先于胎冠被磨损殆尽，颜色区分带起到提示胎冠磨损程度的功效。The beneficial effect of adopting the above technical solution is that since the thickness of the color distinguishing belt is smaller than the crown, in use, the color distinguishing belt is worn out before the crown, and the color distinguishing belt plays the role of prompting the degree of crown wear.
作为本发明的又进一步改进，所述胎趾上具备圆角，所述胎趾上靠近限位凹槽的圆角小于远离限位凹槽的圆角。As a further improvement of the present invention, the toe has a rounded corner, and the rounded corner of the toe near the limiting groove is smaller than the rounded corner away from the limiting groove.
采用上述技术方案的有益效果是：胎趾大圆角方便胎趾嵌入轮圈，当胎趾装入轮圈后，胎趾小圆角起到限制胎趾从轮圈中拔出的作用。The beneficial effects of the above technical solution are as follows: the large toe of the toe is convenient for the toe to be embedded in the rim, and when the toe is loaded into the rim, the small toe of the toe serves to limit the withdrawal of the toe from the rim.
附图说明DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.
图1是本发明一种实施方式的横断面图；Figure 1 is a cross-sectional view of an embodiment of the present invention;
图2是本发明另一种实施方式的横断面图；Figure 2 is a cross-sectional view showing another embodiment of the present invention;
图3是本发明另一种实施方式的横断面图；Figure 3 is a cross-sectional view showing another embodiment of the present invention;
图4是本发明另一种实施方式的横断面图；Figure 4 is a cross-sectional view showing another embodiment of the present invention;
图5是本发明另一种实施方式塞入轮圈的演示图；Figure 5 is a schematic view of another embodiment of the present invention inserted into a rim;
图6是本发明另一种实施方式的A-A剖视图；Figure 6 is a cross-sectional view taken along line A-A of another embodiment of the present invention;
图7是本发明又一种实施方式的A-A剖视图。Fig. 7 is a cross-sectional view taken along line A-A of still another embodiment of the present invention.
1-胎体；2-空腔；3-限位凹槽；4-胎趾；4a-第一圆角；4b-第二圆角；5-周向槽；6-通气孔；7-胎冠；8-颜色区分带；9-轮圈；10a-椭圆；10b-公切线；10c-优弧；10d-劣弧；11-环状筋。1-Carcass; 2-cavity; 3-limit groove; 4-toe; 4a-first rounded corner; 4b-second rounded corner; 5-circumferential groove; 6-vented hole; Crown; 8-color distinguishing band; 9-rim; 10a-ellipse; 10b-public tangent; 10c-excellent arc; 10d-inferior arc;
具体实施方式detailed description
下面结合具体实施例，对本发明的内容做进一步的详细说明：The content of the present invention will be further described in detail below in conjunction with specific embodiments:
为了达到本发明的目的，图1示出了本发明一种实施方式横断面图。一种空心胎，包括胎冠7、胎体1、胎趾4；胎体1中贯穿有空腔2，胎体1横断面中空腔2占比横断面总面积为20％至50％。In order to achieve the objects of the present invention, Figure 1 shows a cross-sectional view of an embodiment of the present invention. A hollow tire comprising a crown 7, a carcass 1 and a toe 4; a cavity 2 is penetrated in the carcass 1 , and the cavity 2 in the cross section of the carcass 1 accounts for 20% to 50% of the total area of the cross section.
采用上述技术方案的有益效果是：本发明无需充气、维护少、具备防戳功能。胎体的材料可以采用与现有技术中的普通轮胎的外胎同样等级的橡胶，可以与现有外胎具备同样的耐磨性，且胎体厚度厚，等效具备了更厚的耐磨层，具备更久的使用周期。胎体厚度大决定了其不易被尖锐物刺穿。The beneficial effects of adopting the above technical solution are: the invention does not need to be inflated, has little maintenance, and has an anti-poke function. The material of the carcass can be the same grade of rubber as the tire of the conventional tire of the prior art, can have the same wear resistance as the existing tire, and the thickness of the carcass is thick, and the equivalent wearer layer has a thicker wear layer. Have a longer life cycle. The large thickness of the carcass determines that it is not easily pierced by sharp objects.
胎体横断面中空腔面积占比20％至50％是经过反复论证后得知的结果，若低于20％则空腔过小，则橡胶用量过大，造成空心胎硬度较高；若高于50％则空腔过大，胎体的支撑***过于单薄，不足以支撑车身。The proportion of the cavity area in the cross-section of the carcass is 20% to 50%. After less than 20%, the cavity is too small, the amount of rubber is too large, resulting in a high hardness of the hollow tire; At 50%, the cavity is too large, and the support system of the carcass is too thin to support the body.
在本发明的另一些实施方式中，如图2所示，空腔2横断面的轮廓呈椭圆10a状。In other embodiments of the invention, as shown in Figure 2, the cross-section of the cavity 2 has an elliptical shape 10a.
采用上述技术方案的有益效果是：椭圆形形状较简洁，工艺要求低。The beneficial effects of adopting the above technical solution are: the elliptical shape is simple and the process requirement is low.
在本发明的另一些实施方式中，如图3所示，空腔2横断面为一条优弧10c、一条劣弧10d、以及优弧10c与劣弧10d之间的两条公切线10b围成的封闭图形。In other embodiments of the present invention, as shown in FIG. 3, the cavity 2 is surrounded by a superior arc 10c, a poor arc 10d, and two common tangent lines 10b between the superior arc 10c and the inferior arc 10d. Closed graphic.
采用上述技术方案的有益效果是：两条公切线与胎体外轮廓之间的距离较大，即胎壁厚度相对较大，提供了较强的胎壁支撑，防止空心胎垮塌形变。The beneficial effect of adopting the above technical solution is that the distance between the two common tangents and the outer contour of the tire is relatively large, that is, the thickness of the sidewall is relatively large, which provides strong sidewall support and prevents collapse of the hollow tire.
在本发明的另一些实施方式中，胎趾4与胎体1间设有与轮圈9配合的限位凹槽3。限位凹槽3对称得设有两条。In other embodiments of the invention, a limiting recess 3 is provided between the bead 4 and the carcass 1 in cooperation with the rim 9. The limiting groove 3 is symmetrically provided with two.
采用上述技术方案的有益效果是：便于空心胎与轮圈牢固固定。The beneficial effect of adopting the above technical solution is that the hollow tire and the rim are firmly fixed.
在本发明的另一些实施方式中，胎趾4上具备周向槽5，周向槽5设置在胎趾4朝向轮圈9方向的中心位置。如图5所示，为周向槽5被压缩时胎趾4装入轮圈9的示意过程。In still other embodiments of the present invention, the toe 4 is provided with a circumferential groove 5 which is disposed at a center position of the toe 4 in the direction of the rim 9. As shown in Fig. 5, a schematic process of loading the toe 4 into the rim 9 when the circumferential groove 5 is compressed.
采用上述技术方案的有益效果是：周向槽给胎趾提供了形变收缩空间，便于胎趾适度形变塞入轮圈中，达成与轮圈的装配。The beneficial effect of the above technical solution is that the circumferential groove provides a deformation contraction space for the toe to facilitate the moderate deformation of the fetal toe into the rim, and the assembly with the rim is achieved.
在本发明的另一些实施方式中，周向槽5与空腔2之间连接有通气孔6，通气孔6成径向方向延伸，周向槽5与空腔2被通气孔6贯通，周向槽5与空腔2的空气可以流通。In another embodiment of the present invention, a vent hole 6 is connected between the circumferential groove 5 and the cavity 2, the vent hole 6 extends in a radial direction, and the circumferential groove 5 and the cavity 2 are penetrated by the vent hole 6 Air to the tank 5 and the cavity 2 can flow.
采用上述技术方案的有益效果是：空心胎的负荷能力几乎完全由其厚壁结构给予的，当轮胎在负荷下下沉时，为了使其空腔内压保持为零，需要在轮胎某个点上有一个穿过胎面的小孔。当空心胎运行时，空心胎受压变形，空腔体积变化，空气进出通气孔，起到对流散热，减少轮胎过热变形。周向槽也起到防止通气孔被堵塞的作用。The beneficial effect of using the above technical solution is that the load capacity of the hollow tire is almost completely given by its thick-walled structure. When the tire sinks under load, in order to keep the internal pressure of the cavity to zero, a certain point in the tire is required. There is a small hole through the tread. When the hollow tire is running, the hollow tire is deformed by pressure, the volume of the cavity changes, and the air enters and exits the vent hole to convect heat dissipation and reduce overheat deformation of the tire. The circumferential groove also serves to prevent the vent hole from being blocked.
在本发明的另一些实施方式中，如图7所示，空腔2内壁上具备环状筋11。In still other embodiments of the present invention, as shown in FIG. 7, the inner wall of the cavity 2 is provided with an annular rib 11.
采用上述技术方案的有益效果是：环状筋起到节约胎体材料的基础上强化空心胎结构的作用。The beneficial effect of adopting the above technical solution is that the annular rib acts to strengthen the hollow tire structure on the basis of saving the carcass material.
在本发明的另一些实施方式中，胎冠7材料的耐磨性高于胎体1所用材料。In other embodiments of the invention, the wear resistance of the material of the crown 7 is higher than that of the carcass 1.
采用上述技术方案的有益效果是：胎冠的高耐磨性提高空心胎的使用寿命。The beneficial effect of adopting the above technical solution is that the high wear resistance of the crown improves the service life of the hollow tire.
在本发明的另一些实施方式中，胎冠7上具备至少一条颜色区分带8，颜色区分带8的颜色与胎冠7的颜色不同，颜色区分带8的厚度小于胎冠7的厚度。In other embodiments of the invention, the crown 7 is provided with at least one color distinguishing strip 8, the color of the color distinguishing strip 8 being different from the color of the crown 7, the thickness of the color distinguishing strip 8 being smaller than the thickness of the crown 7.
采用上述技术方案的有益效果是：因为颜色区分带的厚度小于胎冠，使用中，颜色区分带先于胎冠被磨损殆尽，颜色区分带起到提示胎冠磨损程度的功效。The beneficial effect of adopting the above technical solution is that since the thickness of the color distinguishing belt is smaller than the crown, in use, the color distinguishing belt is worn out before the crown, and the color distinguishing belt plays the role of prompting the degree of crown wear.
在本发明的另一些实施方式中，如图4所示，胎趾4上具备第一圆角4a和第二圆角4b，第一圆角4a靠近限位凹槽3，第二圆角4b远离限位凹槽。第一圆角4a的大小小于第二圆角4b。In other embodiments of the present invention, as shown in FIG. 4, the toe 4 is provided with a first rounded corner 4a and a second rounded corner 4b. The first rounded corner 4a is adjacent to the limiting recess 3, and the second rounded corner 4b Keep away from the limit groove. The size of the first rounded corner 4a is smaller than the second rounded corner 4b.
采用上述技术方案的有益效果是：胎趾大圆角方便胎趾嵌入轮圈，当胎趾装入轮圈后，胎趾小圆角起到限制胎趾从轮圈中拔出的作用。The beneficial effects of the above technical solution are as follows: the large toe of the toe is convenient for the toe to be embedded in the rim, and when the toe is loaded into the rim, the small toe of the toe serves to limit the withdrawal of the toe from the rim.
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施，并不能以此限制本 发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。The above embodiments are only intended to illustrate the technical concept and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and not to limit the scope of the present invention. Equivalent changes or modifications made in substantial form are intended to be included within the scope of the invention.

Claims (10)

  1. 一种空心胎，包括胎冠、胎体、胎趾；A hollow tire comprising a crown, a carcass and a toe;
    其中：胎体中贯穿有空腔；Wherein: a cavity is penetrated through the carcass;
    其特征在于：所述胎体横断面中空腔占比横断面总面积为20％至50％。The utility model is characterized in that: the cavity ratio in the cross section of the carcass is 20% to 50% of the total area of the cross section.
  2. 根据权利要求1所述的一种空心胎，其特征在于：所述空腔横断面呈椭圆形。A hollow tire according to claim 1, wherein said cavity has an elliptical cross section.
  3. 根据权利要求1所述的一种空心胎，其特征在于：所述空腔横断面为一条优弧、一条劣弧、以及优弧与劣弧之间的两条公切线围成的封闭图形。A hollow tire according to claim 1, wherein said cavity has a closed cross section of a superior arc, a poor arc, and two common tangent lines between the superior arc and the inferior arc.
  4. 根据权利要求1所述的一种空心胎，其特征在于：所述胎趾与胎体间设有与轮圈配合的限位凹槽。A hollow tire according to claim 1, wherein a retaining groove is formed between the toe and the carcass to cooperate with the rim.
  5. 根据权利要求1所述的一种空心胎，其特征在于：所述胎趾上具备周向槽。A hollow tire according to claim 1, wherein said toe has a circumferential groove.
  6. 根据权利要求5所述的一种空心胎，其特征在于：所述周向槽与空腔之间连接有通气孔。A hollow tire according to claim 5, wherein a vent hole is connected between the circumferential groove and the cavity.
  7. 根据权利要求1所述的一种空心胎，其特征在于：所述空腔内壁上具备环状筋。A hollow tire according to claim 1, wherein the inner wall of the cavity is provided with an annular rib.
  8. 根据权利要求1所述的一种空心胎，其特征在于：所述胎冠材料的耐磨性高于胎体所用材料。A hollow tire according to claim 1, wherein said crown material has higher wear resistance than the material used for the carcass.
  9. 根据权利要求8所述的一种空心胎，其特征在于：所述胎冠上具备至少一条颜色区分带，所述颜色区分带的厚度小于胎冠的厚度。A hollow tire according to claim 8, wherein said crown has at least one color distinguishing band, and said color distinguishing tape has a thickness smaller than a thickness of the crown.
  10. 根据权利要求4所述的一种空心胎，其特征在于：所述胎趾上具备圆角，所述胎趾上靠近限位凹槽的圆角小于远离限位凹槽的圆角。The hollow tire according to claim 4, wherein the toe has a rounded corner, and the rounded corner of the toe near the limiting groove is smaller than the rounded corner away from the limiting groove.
PCT/CN2018/077878 2017-06-08 2018-03-02 Hollow tire WO2018223737A1 (en)

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Publication number Priority date Publication date Assignee Title
CN107284147A (en) * 2017-06-08 2017-10-24 建大橡胶（中国）有限公司 A kind of air tyre
CN108891203A (en) * 2018-07-25 2018-11-27 建大橡胶（中国）有限公司 A kind of combined type one tire
CN110091670A (en) * 2019-04-16 2019-08-06 东莞市珅辉橡胶制品有限公司 A kind of novel tire structure
CN112549862A (en) * 2020-11-20 2021-03-26 广东顺路驰科技有限公司 Non-pneumatic tire and method for manufacturing the same

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CN107284147A (en) * 2017-06-08 2017-10-24 建大橡胶（中国）有限公司 A kind of air tyre
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Publication number Priority date Publication date Assignee Title
GB158963A (en) * 1919-11-07 1921-02-07 Harry Edward George Bateman Improvements in and relating to tyres for the wheels of motor and like vehicles and means for mounting them in position
CN1769077A (en) * 2004-11-06 2006-05-10 福建省漳州市天天利轮胎有限公司 Nano bullet proof tyre and its manufacturing method
CN102431395A (en) * 2011-11-11 2012-05-02 姚珍汉 Setting method of all-steel radial inflation-free tire
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CN206797026U (en) * 2017-06-08 2017-12-26 建大橡胶（中国）有限公司 A kind of air tyre

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