All-wheel-position tire

Abstract

The utility model provides an all-wheel-position tire, which belongs to the technical field of tires, a tire crown part of the all-wheel-position tire sequentially comprises a lining layer, a tire body, a belted layer and a tire tread from inside to outside, a plurality of longitudinal straight grooves extending along the circumferential direction of the tire are formed on the tire tread, the longitudinal straight grooves comprise shoulder thin grooves positioned on a tire shoulder, and the shoulder thin grooves are communicated with the tire body. The middle longitudinal grooves are located on the two sides of the center line of the tread, the edge longitudinal grooves are located between the shoulder thin grooves and the middle longitudinal grooves, protruding groove walls are arranged in the edge longitudinal grooves, the height of the protruding groove walls is 2-5 mm lower than the depth of the edge longitudinal grooves, and the height of the protruding groove walls is 2-5 mm lower than the depth of the edge longitudinal grooves. The distance between the outer side of the protruding groove wall and the groove wall of the edge longitudinal groove is 5-8 mm larger than the distance between the inner side of the protruding groove wall and the groove wall of the edge longitudinal groove. The all-wheel-position tire can effectively reduce irregular wear of the tire and improve the rigidity of the tire crown part, and has the characteristics of improving the wear resistance of the tire and prolonging the service life of the tire.

Description

Technical Field

[0001] The utility model belongs to the technical field of tires, and particularly relates to an all-position tire. Background Art

[0002] As an important component of an automobile, a tire directly contacts the road surface. During the driving process of a vehicle, if the friction in the contact area between the driving road surface and the tire is asymmetric, it will cause abnormal wear of the tire. Especially for tires that often drive on highways, if the tires show abnormal wear, it will accelerate the damage of the tires and reduce the service life of the tires. The contour and tread pattern structure design of the tire have an important impact on the wear resistance and service life of the tire.

[0003] At present, the crown of ordinary tire products usually uses a single arc design, and the entire crown is on one arc. In this way, during the driving process of the vehicle, the contact between the tire shoulder and the ground will be abnormally prominent, which is likely to cause shoulder uneven wear; when the tread pattern is worn flat, the tire needs to be replaced, greatly reducing the driving mileage and service life of the tire. Summary of the Utility Model

[0004] The details of one or more embodiments of the present utility model are set forth in the following drawings and description, so that other features, objects, and advantages of the present application will become more comprehensible.

[0005] The present utility model provides an all-position tire, which solves the technical problem of abnormal wear of tires during driving in the prior art, which accelerates tire damage. By improving the tire contour and tread pattern, the irregular wear of the tire is effectively reduced, the rigidity of the crown part is improved, and the tire has the characteristics of improving the wear resistance and service life of the tire.

[0006] The present utility model discloses an all-position tire on the one hand. The crown part of the all-position tire sequentially includes an inner liner, a carcass, a belt layer, and a tread from inside to outside. A plurality of longitudinal straight grooves extending along the circumferential direction of the tire are formed on the tread. The longitudinal straight grooves include shoulder fine grooves located at the tire shoulders, middle longitudinal grooves located on both sides of the tire tread center line, and side longitudinal grooves located between the shoulder fine grooves and the middle longitudinal grooves. Among them, a raised groove wall is arranged inside the side longitudinal grooves. The height of the raised groove wall is 2-5 mm lower than the depth of the side longitudinal grooves, and the distance from the outside of the raised groove wall to the groove wall of the side longitudinal grooves is 5-8 mm larger than the distance from the inside of the raised groove wall to the groove wall of the side longitudinal grooves.

[0007] In some embodiments, the longitudinal straight grooves divide the tire tread into a plurality of tread blocks. The tread blocks include middle tread blocks located at the tire tread center line, side tread blocks located on both sides of the middle tread blocks, and shoulder tread blocks located at the tire shoulders. Among them, the area ratio of the shoulder tread blocks, the side tread blocks, and the middle tread blocks is 1.7:1:1.

[0008] In some of the embodiments, the middle pattern block and the side pattern block both include transverse grooves equidistantly arranged along the circumferential center line direction of the tread, the transverse grooves are obliquely arranged through structures, and the inclination directions of the transverse grooves on the same pattern block are the same, while the inclination directions of the transverse grooves on adjacent pattern blocks are opposite.

[0009] In some embodiments, two ends of the transverse thin groove form a bevel with the adjacent longitudinal straight groove.

[0010] In some of the embodiments, a straight steel sheet is further provided between adjacent transverse grooves on the middle pattern block, and both ends of the straight steel sheet are connected with the adjacent transverse grooves to form an I-shaped structure.

[0011] In some of the embodiments, a zigzag steel sheet is further provided between adjacent transverse grooves on the edge pattern block, and both ends of the zigzag steel sheet are closed structures.

[0012] In some embodiments, the width of the shoulder groove is 3-5mm, and the depth is 3-7mm; the width of the middle longitudinal groove is 11-15mm, and the depth is 15-16mm; the width of the side longitudinal groove is 15-20mm, and the depth is 14-15mm.

[0013] In some embodiments, the distance L1 between the shoulder groove and the crown shoulder is 5-10 mm.

[0014] In some of the embodiments, a distance L2 between the tread shoulder plane and the tread crown plane is 2-5 mm.

[0015] In some embodiments, the belt layer includes a first belt layer, a second belt layer, a third belt layer and a fourth belt layer from the inside to the outside, wherein the width of the second belt layer is 85%-92% of the width of the tire running surface, the width of the first belt layer is 10-15mm narrower than the width of the second belt layer, the width of the third belt layer is wider than the width of the first belt layer, the distance between the outer end point of the third belt layer and the outer end point of the first belt layer is 0-10mm, the width of the fourth belt layer is narrower than the width of the third belt layer, and the distance between the outer end point of the fourth belt layer and the outer end point of the third belt layer is 10-20mm.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The all-wheel position tire of the utility model embodiment has a plurality of longitudinal straight grooves extending along the circumference of the tire formed on the tread, and a raised groove wall is arranged inside the edge longitudinal groove. By limiting the depth of the raised groove wall and the distance between the two sides of the raised groove wall and the edge longitudinal groove wall, the rigidity of the edge longitudinal groove is increased, making it less likely to deform, thereby effectively reducing irregular wear of the tire.

[0018] (2) The all-wheel position tire of the utility model embodiment increases the contact area between the edge pattern blocks and the ground by increasing the area of ​​the edge pattern blocks, thereby avoiding the reduction of the contact area caused by the edge pattern blocks being small, easy to lift up, and not in contact with the ground, thereby improving the wear resistance of the tire.

[0019] (3) The all-wheel position tire of the embodiment of the utility model has a certain distance between the tread shoulder plane and the tread crown plane through contour design, which is beneficial to reduce irregular wear of the tire, reduce heat generation of the tire shoulder, and increase tire life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 A schematic diagram of the belt structure of an all-wheel position tire provided by an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the tread pattern structure of an all-wheel tire provided by an embodiment of the utility model;

[0023] Figure 3 A schematic cross-sectional view of the longitudinal grooves on the side of an all-wheel tire provided by an embodiment of the utility model;

[0024] In the accompanying drawings: 1, inner liner; 2, carcass; 3, belt layer, 31, first belt layer, 32, second belt layer, 33, third belt layer, 34, fourth belt layer; 4, tread, 41, shoulder pattern block, 42, edge pattern block, 43, middle pattern block, 44, shoulder fine groove, 45, edge longitudinal groove, 451, raised groove wall, 46, middle longitudinal groove;

[0025] L1, the distance between the shoulder groove and the crown shoulder; L2, the distance between the crown shoulder plane and the crown crown plane. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "longitudinal", "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. The term "longitudinal" refers to the direction in which the tire rolls; the term "lateral" refers to the direction perpendicular to the mid-plane of the tire.

[0028] An embodiment of the present utility model provides an all-position tire. Figure 1 It is a schematic diagram of the belt structure of the all-position tire provided by the embodiment of the present utility model. Figure 2 It is a schematic diagram of the tread pattern structure of the all-position tire according to the embodiment of the present utility model. Figure 3 It is a schematic cross-sectional view of the side longitudinal groove. Refer to Figures 1-3As shown, the crown portion of the all-wheel position tire provided by the embodiment of the utility model includes, from the inside to the outside, an inner liner 1, a carcass 2, a belt layer 3 and a tread 4, and a plurality of longitudinal straight grooves extending along the circumferential direction of the tire are formed on the tread 4, and the longitudinal straight grooves include shoulder grooves 44 located at the shoulders, middle longitudinal grooves 46 located on both sides of the tread centerline, and side longitudinal grooves 45 located between the shoulder grooves 44 and the middle longitudinal grooves 46, wherein the side longitudinal grooves 45 have a width of 15-20 mm and a depth of 14-15 mm, and a raised groove wall 451 is arranged inside the side longitudinal groove 45, and the height of the raised groove wall 451 is 2-5 mm lower than the depth of the side longitudinal groove 45, and the distance between the outer side of the raised groove wall and the side longitudinal groove wall is 5-8 mm larger than the distance between the inner side of the raised groove wall and the side longitudinal groove wall, that is, the outer width of the raised groove wall is 5-8 mm larger than the inner width. Since the edge longitudinal groove 45 is relatively wide and easily deformed, and the contact form with the ground will change after deformation, causing irregular wear of the tire, the utility model increases the rigidity of the edge longitudinal groove 45 by arranging a middle raised groove wall 451 inside the edge longitudinal groove 45, making it less likely to deform and effectively reducing irregular wear of the tire.

[0029] The shoulder groove 44 of the all-wheel position tire provided by the embodiment of the utility model has a width of 3-5mm and a depth of 3-7mm. The distance L1 between the shoulder groove 44 and the crown shoulder is 5-10mm. There is less rubber in the shoulder groove 44, and the distance for heat generated by friction between the steel wire and the rubber to be transferred to the air becomes shorter, which makes it easier to dissipate heat, thereby increasing the heat dissipation of the tire and extending its service life. The width of the middle longitudinal groove 46 is 11-15mm and the depth is 15-16mm. The depth of the middle longitudinal groove 46 is 1-2mm deeper than the side longitudinal groove 45. Under the premise that the belt layer is flat, this design has a thicker base rubber at the side, which can prevent the side longitudinal groove 45 from cracking.

[0030] The all-wheel tire provided by the embodiment of the utility model divides the tire tread into a plurality of pattern blocks through a plurality of longitudinal straight grooves, and the pattern blocks include a middle pattern block 43 located at the center line of the tread, side pattern blocks 42 located at both sides of the middle pattern block 43, and a shoulder pattern block 41 located at the shoulder, wherein the area ratio of the shoulder pattern block 41, the side pattern block 42 and the middle pattern block 43 is 1.7:1:1. The side pattern block 42 includes a first side pattern block and a second side pattern block, and the shoulder pattern block 41 includes a first shoulder pattern block and a second shoulder pattern block, and the area ratio of the first shoulder pattern block, the first side pattern block, the middle pattern block, the second side pattern block, and the second shoulder pattern block is set to: 1.7:1:1:1:1.7. By increasing the area of ​​the edge pattern block 42, the contact area between the edge pattern block 42 and the ground is increased, thereby avoiding the reduction of the contact area caused by the edge pattern block being small, easy to lift up, and not in contact with the ground, thereby improving the wear resistance of the tire.

[0031] The middle pattern block 43 and the side pattern block 42 of the all-wheel tire provided by the embodiment of the utility model both include transverse fine grooves equidistantly arranged along the circumferential center line direction of the tread. The transverse fine grooves are inclined through structures, and the inclination direction of the transverse fine grooves on the same pattern block is the same, while the inclination direction of the transverse fine grooves on adjacent pattern blocks is opposite. In a preferred embodiment, the two ends of the transverse fine grooves form a cut angle with the adjacent longitudinal straight grooves. A straight steel sheet is also arranged between adjacent transverse fine grooves on the middle pattern block 43, and the two ends of the straight steel sheet are connected with the adjacent transverse fine grooves to form an I-shaped structure. A folded line steel sheet is also arranged between adjacent transverse fine grooves on the side pattern block 42, and the two ends of the folded line steel sheet are closed structures.

[0032] The distance L2 between the tread shoulder plane and the tread crown plane of the all-wheel position tire provided by the embodiment of the utility model is 2-5 mm, which is beneficial to reducing irregular wear of the tire, while reducing heat generation at the tire shoulder and increasing the tire life.

[0033] refer to Figure 1 As shown, the belt layer structure includes the first belt layer 31, the second belt layer 32, the third belt layer 33 and the fourth belt layer 34 from the inside to the outside, wherein the width of the second belt layer 32 is 85%-92% of the tire running surface width, the width of the first belt layer 31 is 10-15mm narrower than the width of the second belt layer 32, the width of the third belt layer 33 is wider than the width of the first belt layer 31, the distance between the outer end point of the third belt layer and the outer end point of the first belt layer is 0-10mm, the width of the fourth belt layer 34 is narrower than the width of the third belt layer 33, and the distance between the outer end point of the fourth belt layer and the outer end point of the third belt layer is 10-20mm. Through the above belt layer structure setting, the rigidity of the crown part is further guaranteed.

[0034] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. An all-wheel position tire, wherein the crown portion of the all-wheel position tire comprises, from inside to outside: The inner liner, carcass, belt layer and tread are characterized in that a plurality of longitudinal straight grooves extending along the circumferential direction of the tire are formed on the tread, the longitudinal straight grooves include shoulder fine grooves located at the shoulders, middle longitudinal grooves located on both sides of the tread centerline, and side longitudinal grooves located between the shoulder fine grooves and the middle longitudinal grooves, wherein a raised groove wall is arranged inside the side longitudinal groove, the height of the raised groove wall is 2-5 mm lower than the depth of the side longitudinal groove, and the distance from the outer side of the raised groove wall to the side longitudinal groove wall is 5-8 mm greater than the distance from the inner side of the raised groove wall to the side longitudinal groove wall.

2. The all-wheel position tire according to claim 1, characterized in that: The longitudinal straight grooves divide the tire tread into a plurality of pattern blocks, the pattern blocks including a middle pattern block located at the center line of the tread, side pattern blocks located at both sides of the middle pattern block, and shoulder pattern blocks located at the shoulders, wherein the area ratio of the shoulder pattern blocks, the side pattern blocks and the middle pattern blocks is 1.7:1:

1.

3. The all-wheel position tire according to claim 2, characterized in that: The middle pattern block and the edge pattern block both include transverse fine grooves equidistantly arranged along the circumferential center line direction of the tread. The transverse fine grooves are obliquely arranged through structures, and the inclination directions of the transverse fine grooves on the same pattern block are the same, while the inclination directions of the transverse fine grooves on adjacent pattern blocks are opposite.

4. The all-wheel position tire according to claim 3, characterized in that: Two ends of the transverse fine groove form a cutting angle with the adjacent longitudinal straight groove.

5. The all-wheel position tire according to claim 3, characterized in that: A straight steel sheet is also arranged between adjacent transverse grooves on the middle pattern block, and both ends of the straight steel sheet are connected with the adjacent transverse grooves to form an I-shaped structure.

6. The all-wheel position tire according to claim 3, characterized in that: A zigzag steel sheet is also arranged between adjacent transverse grooves on the edge pattern blocks, and both ends of the zigzag steel sheet are closed structures.

7. The all-wheel position tire according to claim 1, characterized in that: The width of the shoulder groove is 3-5mm, and the depth is 3-7mm; the width of the middle longitudinal groove is 11-15mm, and the depth is 15-16mm; the width of the side longitudinal groove is 15-20mm, and the depth is 14-15mm.

8. The all-wheel position tire according to claim 1, characterized in that: The distance L1 between the shoulder groove and the crown shoulder is 5-10 mm.

9. The all-wheel position tire according to claim 1, characterized in that: The distance L2 between the tread shoulder plane and the tread crown plane is 2-5 mm.

10. The all-wheel position tire according to claim 1, characterized in that: The belt layers include, from the inside to the outside, a first belt layer, a second belt layer, a third belt layer and a fourth belt layer, wherein the width of the second belt layer is 85%-92% of the width of the tire running surface, the width of the first belt layer is 10-15 mm narrower than the width of the second belt layer, the width of the third belt layer is wider than the width of the first belt layer, and the distance between the outer end point of the third belt layer and the outer end point of the first belt layer is 0-10 mm, the width of the fourth belt layer is narrower than the width of the third belt layer, and the distance between the outer end point of the fourth belt layer and the outer end point of the third belt layer is 10-20 mm.

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