Multi-angle herringbone pattern block and agricultural tire
By designing herringbone tread blocks with multiple angles, the problem of insufficient flexibility in traditional agricultural tires under complex road conditions and when turning has been solved, resulting in better grip, handling and wear resistance, and extended service life.
Patent Information
- Application Number
- CN202520288927.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Traditional agricultural tires' herringbone tread blocks, due to their single-angle design, suffer from poor flexibility in complex road conditions and when turning, resulting in insufficient grip, traction, and wear resistance.
The design employs a multi-segment herringbone pattern, consisting of sequentially connected first, second, third, and fourth bent segments, each with a different angle. These segments are designed as trapezoidal and quadrilateral structures, connected as a single unit to enhance the overall structural strength.
It improves tire grip and handling under different driving conditions, reduces sag, extends service life, and enhances driving performance and wear resistance.
Smart Images
Figure CN223735777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a multi-segment angle herringbone pattern block and an agricultural tire, belonging to the field of tire technology. Background Technology
[0002] The tread block angle refers to the angle between the tread pattern and the perpendicular line to the tire's centerline. The arrangement angle of the tread blocks on the driving surface should avoid coinciding with the crown cord angle. The crown cord angle (i.e., the crown angle) is the angle between the tire carcass cords and the perpendicular line to the tire's centerline; the crown angle of agricultural tires is generally between 48° and 53°. To reduce the risk of the tire carcass cords at the bottom of the tread blocks breaking or bursting due to stress, the tread block arrangement angle should differ from the crown angle by at least 3°.
[0003] Traditional agricultural tire herringbone patterns typically use a single-angle tread block arrangement at 40°-45° (e.g.) Figure 1 As shown, its tread block angle is 46°. This single-angle tread block provides good stability and handling when driving in a straight line, but due to the uniformity of the tread block angle, it is relatively weak in terms of flexibility when dealing with complex road conditions and turning, and has certain deficiencies in terms of grip, driving force and wear resistance. Summary of the Invention
[0004] To address the problems existing in the prior art, this utility model provides a multi-segment angle herringbone pattern block and an agricultural tire, thereby improving the performance of the herringbone pattern on agricultural tires.
[0005] To achieve the above objectives, this utility model employs a multi-segment angle herringbone pattern block, which has no less than two pattern block angles. The herringbone pattern block includes a first bending segment, a second bending segment, a third bending segment, and a fourth bending segment connected in sequence.
[0006] The first bend is located to the left of the tire centerline, and the second bend is located to the right of the tire centerline. The right side of the first bend coincides with the left side of the second bend, and the cross-sectional shape of the first bend is trapezoidal.
[0007] The cross-sectional shape of the second bent segment is quadrilateral;
[0008] The left side of the third bend coincides with the right side of the second bend, and the cross-sectional shape of the third bend is quadrilateral.
[0009] The left side of the fourth bend coincides with the right side of the third bend, and the right side of the fourth bend coincides with the tire anti-friction line.
[0010] In some embodiments, the first bend segment, the second bend segment, the third bend segment, and the fourth bend segment are connected as a single unit.
[0011] In some embodiments, the included angle between the upper side edge and the lower side edge of the first bent section and the tire center line vertical line is A, and A is 27-33°.
[0012] In some embodiments, the distance between the center point b of the right side edge of the second bent section and the face width line is L, and L=(0.25-0.3)*tread width.
[0013] In some embodiments, the upper side edge and the lower side edge of the second bent section are parallel to each other, and the included angle between the right end of the upper side edge and the lower side edge and the tire center line vertical line is B, and B is 43-48°.
[0014] In some embodiments, the upper side edge and the lower side edge of the third bent section are parallel to each other, and the included angle between the line connecting the center point c of the right side edge of the third bent section and the center point b of the right side edge of the second bent section and the tire center line vertical line is C, and C is 20-25°.
[0015] In some embodiments, the width of the fourth bent section gradually increases from left to right.
[0016] The second aspect of the utility model further provides an agricultural tire, the agricultural tire is installed with the multi-angle herringbone pattern block.
[0017] Compared with the prior art, the multi-angle herringbone pattern block of the utility model adopts a plurality of (not less than two) different angle pattern blocks to replace the traditional single-angle pattern block. By dividing the tire surface into a plurality of different angle regions, the tire can better adapt to different driving conditions. For example, stability is maintained during straight driving, and different angle pattern regions provide stronger grip and maneuverability during turning. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0019] Figure 1 It is a schematic diagram of the arrangement structure of the herringbone pattern of the prior art agricultural tire.
[0020] Figure 2 It is a schematic diagram of the structure of the herringbone pattern of the agricultural tire of the utility model.
[0021] Figure 3 It is a schematic diagram of the local enlarged structure of the herringbone pattern block of the utility model.
[0022] Figure: 1, the first bending section, 2, the second bending section, 3, the third bending section, 4, the fourth bending section, 5, the tire guard line. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the following will make detailed description to the technical scheme of the application through the drawings and specific examples, it should be understood that the specific features in the application examples and examples are detailed description to the technical scheme of the application, and not the limitation to the technical scheme of the application, in the case of no conflict, the technical features in the application examples and examples can be combined with each other.
[0024] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms such as 'up', 'down', 'left', 'right' is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation structure and operation, therefore, it cannot be understood as the limitation to the protection content of the utility model.
[0025] As shown in Figure 2 and Figure 3 A multi-angle herringbone block, having not less than two block angles, the herringbone block comprises a first bending section 1, a second bending section 2, a third bending section 3 and a fourth bending section 4 connected in sequence, wherein the utility model mainly optimizes the design of the first bending section 1, the second bending section 2 and the third bending section 3, and the structure of the fourth bending section 4 is similar to the existing structure.
[0026] The first bending section 1 is located on the left side of the tire center line, the second bending section 2 is located on the right side of the tire center line, the right side edge of the first bending section 1 coincides with the left side edge of the second bending section 2, and the cross-sectional shape of the first bending section 1 is trapezoidal.
[0027] The cross-sectional shape of the second bending section 2 is quadrilateral.
[0028] The left side edge of the third bending section 3 coincides with the right side edge of the second bending section 2, and the cross-sectional shape of the third bending section 3 is quadrilateral.
[0029] The left side edge of the fourth bending section 4 coincides with the right side edge of the third bending section 3, and the right side edge of the fourth bending section 4 coincides with the tire guard line 5.
[0030] In some embodiments, as shown in Figure 2 , Figure 3 The first bending section 1, the second bending section 2, the third bending section 3 and the fourth bending section 4 are connected as a whole, the overall structural strength is high, and the stability is good.
[0031] In some embodiments, as shown in FIG. 1, the first curved section 1 has an upper side, a lower side, and a right side. Figure 3 In some embodiments, as shown in FIG. 1, the first curved section 1 has an upper side, a lower side, and a right side.
[0032] In some embodiments, as shown in FIG. 2, the second curved section 2 has an upper side, a lower side, and a right side. Figure 3 In some embodiments, as shown in FIG. 2, the second curved section 2 has an upper side, a lower side, and a right side.
[0033] In some embodiments, as shown in FIG. 3, the third curved section 3 has an upper side, a lower side, and a right side. Figure 3 In some embodiments, as shown in FIG. 3, the third curved section 3 has an upper side, a lower side, and a right side.
[0034] In some embodiments, as shown in FIG. 4, the fourth curved section 4 has an upper side, a lower side, and a right side. Figure 3 In some embodiments, as shown in FIG. 4, the fourth curved section 4 has an upper side, a lower side, and a right side.
[0035] Compared with the traditional single-angle pattern block, the multi-angle herringbone pattern block of the utility model has the following advantages:
[0036] (1) In terms of driving, the single-angle herringbone pattern is relatively direct and efficient when driving in a straight line, but its performance is limited when frequently changing driving direction or dealing with complex terrain. The multi-angle pattern block arrangement can more evenly distribute the force during driving, whether driving in a straight line or turning, to achieve more efficient power transmission and improve the driving performance of the vehicle.
[0037] (2) In terms of tire sinking amount, the single-angle herringbone pattern has a large sinking amount when subjected to the same pressure due to its simple structure and single pattern angle. The multi-angle herringbone pattern can better disperse pressure and has a relatively small sinking amount.
[0038] (3) In terms of wear, the single-angle herringbone pattern has a faster wear rate due to concentrated stress. In contrast, the multi-angle herringbone pattern has more uniform wear due to more uniform pressure distribution, thereby prolonging the service life of the tire.
[0039] Finally, the utility model also provides an agricultural tire, wherein the agricultural tire is provided with the multi-angle herringbone pattern block.
[0040] Embodiment 1
[0041] A multi-angle herringbone block has three different block angles, including a first bending section 1, a second bending section 2, a third bending section 3 and a fourth bending section 4 connected in sequence.
[0042] Wherein, A=30° in the first bending section 1, B=45° in the second bending section 2, C=23° in the third bending section 3, compared with the traditional single-angle block arrangement form (such as shown in the figure Figure 1 The agricultural tire herringbone pattern of the utility model has the performance shown in Table 1.
[0043] Table 1 Performance comparison of multi-angle block and traditional single-angle block of the utility model
[0044] Item Multi-angle pattern block of the utility model Single-angle pattern block Multi-angle and single-angle comparison Durability 108h37min 76h Increase 42% Sinking amount mm 41.7 47.2 Sinking amount small 11.6%
[0045] The multi-angle herringbone block of the utility model adopts a plurality of (not less than two) different-angle block combinations to replace the traditional single-angle block. The multi-angle design can provide better grip in all directions, and the different-angle blocks can better contact the ground under different driving conditions to provide more stable and powerful grip.
[0046] The utility model divides the tire surface into a plurality of different-angle regions, so that the tire can better adapt to different driving conditions. For example, stability is maintained during straight-line driving, and different-angle herringbone regions provide stronger grip and maneuverability during turning.
[0047] In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features of different embodiments also mean to be within the protection scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use in a combined manner according to the known technical solutions and the technical problems to be solved by the present application.
Claims
1. A multi-segment angled herringbone block, characterized by, The herringbone block has no less than two block angles, and the herringbone block comprises a first bending section (1), a second bending section (2), a third bending section (3) and a fourth bending section (4) connected in sequence; The first bending section (1) is located on the left side of the tire center line, the second bending section (2) is located on the right side of the tire center line, the right side edge of the first bending section (1) coincides with the left side edge of the second bending section (2), and the cross-sectional shape of the first bending section (1) is trapezoidal; The cross-sectional shape of the second bending section (2) is quadrilateral; The left side edge of the third bending section (3) coincides with the right side edge of the second bending section (2), and the cross-sectional shape of the third bending section (3) is quadrilateral; The left side edge of the fourth bending section (4) coincides with the right side edge of the third bending section (3), and the right side edge of the fourth bending section (4) coincides with the tire sidewall (5).
2. A multi-segment angular herringbone block according to claim 1, wherein, The first bending section (1), the second bending section (2), the third bending section (3) and the fourth bending section (4) are connected into one body.
3. A multi-segment angular herringbone block according to claim 1, wherein, The angles between the upper side edge and the lower side edge of the first bending section (1) and the tire center line vertical line are both A, and A is 27°-33°.
4. A multi-segment angular herringbone block according to claim 1, wherein, The distance between the center point b of the right side edge of the second bending section (2) and the face width line is L, and L=(0.25-0.3)*running face width.
5. A multi-section angular herringbone block according to claim 4, wherein, The upper side edge and the lower side edge of the second bending section (2) are parallel to each other, the right ends of the upper side edge and the lower side edge are both at an angle B with the tire center line vertical line, and B is 43°-48°.
6. A multi-segment angular herringbone block according to claim 1, wherein, The upper side edge and the lower side edge of the third bending section (3) are parallel to each other, the angle between the connecting line between the center point c of the right side edge of the third bending section (3) and the center point b of the right side edge of the second bending section (2) and the tire center line vertical line is C, and C is 20°-25°.
7. A multi-segment angular herringbone block according to claim 1, wherein, The width of the fourth bending section (4) gradually increases from left to right.
8. An agricultural tire characterized in that, The agricultural tire is provided with the multi-angle herringbone block according to any one of claims 1-7.