Non-pneumatic tire

Abstract

The application discloses a non-pneumatic tire, comprising: an outer ring, an inner ring, a first rim and a second rim, the outer ring is used for contacting the ground, the first rim and the second rim are both arranged between the outer ring and the inner ring, the first rim comprises a plurality of first support members which are axially spaced around the inner ring, the second rim comprises a plurality of second support members which are axially spaced around the inner ring, the first support members and the second support members are arranged in a staggered manner in the axial direction of the inner ring, and the first support members and the second support members are arranged in opposite directions relative to the axial direction of the inner ring, so that the first support members and the second support members are arranged in a form similar to the legs of a human body when walking, thereby greatly enhancing the load-carrying capacity of the non-pneumatic tire, and making the stress on the outer ring of the non-pneumatic tire more uniform when contacting the ground, so that the comfort of the non-pneumatic tire is greatly improved while the load-carrying capacity is considered.

Description

Technical Field

[0001] This invention relates to the field of tire technology, and in particular to a non-pneumatic tire. Background Technology

[0002] Tire load and tire compression are positively correlated. When the tire load is too light, tire deformation decreases, comfort is reduced, the contact area between the tire's outer ring and the ground tends to decrease, tire grip weakens, and braking distance increases. Conversely, when the tire load is too heavy, tire deformation increases, compressing the vehicle's suspension system, again reducing comfort, the contact area between the tire's outer ring and the ground tends to increase, tire grip is excessively strong, and wear, handling effort, and energy consumption increase. Based on these drawbacks, improving the existing tire structure to achieve a harmonious balance of comfort under varying loads is an urgent problem to be solved. Summary of the Invention

[0003] Therefore, it is necessary to provide a non-pneumatic tire that can balance load-bearing capacity with improved comfort.

[0004] A non-pneumatic tire includes: an outer ring, an inner ring, a first rim, and a second rim. The outer ring is used to contact the ground. The first rim and the second rim are both disposed between the outer ring and the inner ring. The first rim includes a plurality of first support members axially spaced around the inner ring. The second rim includes a plurality of second support members axially spaced around the inner ring. The first support members and the second support members are offset axially from the inner ring and are inclined in opposite directions relative to the axial direction of the inner ring.

[0005] In one embodiment, a plurality of the first supports are evenly spaced along the axial direction of the inner ring; and / or

[0006] The second support members are evenly spaced around the inner ring along its axial direction.

[0007] In one embodiment, the tilt angle of the first support member and / or the second support member relative to the axial direction of the inner ring is adjustable.

[0008] In one embodiment, the outer ring, the inner ring, the first rim, and the second rim enclose a hollow channel, which is axially arranged around the inner ring.

[0009] In one embodiment, the cross-section of the hollow channel in the radial direction of the inner ring is any one of a circle, an ellipse, or a polygon.

[0010] In one embodiment, the size of the hollow channel in the radial direction of the inner ring is adjustable.

[0011] In one embodiment, the first rim is provided with a plurality of first through holes penetrating the first rim, and each first through hole is distributed between two adjacent first support members so that the two adjacent first support members are spaced apart.

[0012] In one embodiment, the second rim is provided with a plurality of second through holes penetrating the second rim, each second through hole being distributed between two adjacent second supports, so that the two adjacent second supports are spaced apart.

[0013] In one embodiment, an anti-slip structure is provided on the outer side wall of the outer ring.

[0014] In one embodiment, the axial dimension of the first support member in the inner ring increases from the middle of the first support member to the two ends of the first support member that respectively connect the outer ring and the inner ring; and / or

[0015] The axial dimension of the second support member in the inner ring increases from the middle of the second support member to the two ends of the second support member that connect the outer ring and the inner ring respectively.

[0016] The non-pneumatic tire provided in this application has a first rim and a second rim disposed between its outer and inner rims. The first rim includes a plurality of first support members axially spaced around the inner rim, and the second rim includes a plurality of second support members axially spaced around the inner rim. The first and second support members are staggered in the axial direction of the inner rim, and the first and second support members are inclined in opposite directions relative to the axial direction of the inner rim. This arrangement of the first and second support members is similar to the spread legs of a human walking, which greatly enhances the load-bearing capacity of the non-pneumatic tire and makes the force on the outer rim of the non-pneumatic tire more even when in contact with the ground. As a result, the non-pneumatic tire greatly improves its comfort while maintaining its load-bearing capacity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a non-pneumatic tire in one embodiment;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 The diagram shows a cross-sectional view of a non-pneumatic tire.

[0021] Figure 4 for Figure 1 The diagram shows a cross-sectional view of a non-pneumatic tire from another perspective. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0025] like Figure 1 and Figure 2As shown, in one embodiment, the non-pneumatic tire 100 includes an outer ring 110, an inner ring 120, a first rim 130, and a second rim 140. The outer ring 110 is used to contact the ground. The first rim 130 and the second rim 140 are both disposed between the outer ring 110 and the inner ring 120. The first rim 130 includes a plurality of first support members 132 that are axially spaced around the inner ring 120. The second rim 140 includes a plurality of second support members 142 that are axially spaced around the inner ring 120. The first support members 132 and the second support members 142 are staggered in the axial direction of the inner ring 120, and the first support members 132 and the second support members 142 are inclined in opposite directions relative to the axial direction of the inner ring 120.

[0026] The non-pneumatic tire 100 provided in this application has a first rim 130 and a second rim 140 disposed between its outer rim 110 and inner rim 120. The first rim 130 includes a plurality of first support members 132 axially spaced around the inner rim 120, and the second rim 140 includes a plurality of second support members 142 axially spaced around the inner rim 120. The first support members 132 and the second support members 142 are staggered in the axial direction of the inner rim 120, and the first support members 132 and the second support members 142 are inclined in opposite directions relative to the axial direction of the inner rim 120. This arrangement of the first support members 132 and the second support members 142 is similar to the way a person's legs are spread apart when walking, which greatly enhances the load-bearing capacity of the non-pneumatic tire 100 and makes the force on the outer rim 110 of the non-pneumatic tire 100 more uniform when in contact with the ground. Thus, the non-pneumatic tire 100 greatly improves its comfort while maintaining its load-bearing capacity.

[0027] like Figure 3 As shown, in one embodiment, a plurality of first support members 132 are evenly spaced along the axial direction of the inner ring 120 to improve the uniformity of force distribution on each first support member 132. Figure 4 As shown, further, a plurality of second support members 142 are evenly spaced along the axial direction of the inner ring 120 to improve the uniformity of force distribution on each second support member 142.

[0028] In one embodiment, the staggered ratio of the first support member 132 and the second support member 142 in the axial direction of the inner ring 120 is adjustable. The staggered ratio can be freely set according to the load-bearing and anti-damage requirements of the non-pneumatic tire 100 to meet the actual use requirements of non-pneumatic tires 100 with different load-bearing capacities.

[0029] In one embodiment, the tilt angle of the first support member 132 and / or the second support member 142 relative to the axial direction of the inner ring 120 is adjustable. This tilt angle can be freely set according to the load-bearing and anti-damage requirements of the non-pneumatic tire 100 to meet the actual usage needs of non-pneumatic tires 100 with different load-bearing capacities. Specifically, in this embodiment, the tilt angles of both the first support member 132 and the second support member 142 relative to the axial direction of the inner ring 120 are adjustable.

[0030] like Figure 3 As shown, in one embodiment, the outer ring 110, inner ring 120, first rim 130, and second rim 140 enclose a hollow channel 150, which is axially arranged around the inner ring 120. This arrangement facilitates heat dissipation of the non-pneumatic tire 100 and reduces the resistance generated by the non-pneumatic tire 100 under load. This allows the non-pneumatic tire 100 to effectively improve comfort while maintaining load-bearing capacity, and also effectively saves on manufacturing materials and reduces costs.

[0031] In one embodiment, the cross-section of the hollow channel 150 in the radial direction of the inner ring 120 is any one of a circle, an ellipse, or a polygon. It should be noted that the specific shape of the cross-section of the hollow channel 150 in the radial direction of the inner ring 120 can be reasonably selected according to the actual situation.

[0032] In one embodiment, the size of the hollow channel 150 in the radial direction of the inner ring 120 is adjustable. The size of the hollow channel 150 in the radial direction of the inner ring 120 can be freely set according to the load-bearing and anti-damage requirements of the non-pneumatic tire 100 to meet the actual use requirements of non-pneumatic tires 100 with different load-bearing capacities.

[0033] like Figure 3 As shown, in one embodiment, a plurality of first through holes 132 are provided on the first rim 130, each first through hole 132 being distributed between two adjacent first support members 132, so that the two adjacent first support members 132 are spaced apart. Specifically, the first through holes 132 are connected to the hollow channel 150, and the plurality of first through holes 132 are evenly spaced around the axial direction of the inner ring 120.

[0034] like Figure 4 As shown, in one embodiment, the second rim 140 is provided with a plurality of second through holes 142 penetrating the second rim 140. Each second through hole 142 is distributed between two adjacent second support members 142, so that the two adjacent second support members 142 are spaced apart. Specifically, the second through holes 142 are connected to the hollow channel 150, and the plurality of second through holes 142 are evenly spaced around the axial direction of the inner ring 120. (Reference) Figure 2Furthermore, the second through hole 142 and the first through hole 132 are offset from each other in the axial direction of the inner ring 120.

[0035] like Figure 3 As shown, in one embodiment, an anti-slip structure 160 is provided on the outer side wall of the outer ring 110 to enhance the friction between the outer ring 110 and the ground and prevent the outer ring 110 of the non-pneumatic tire 100 from slipping when it rotates and moves on the ground.

[0036] In one embodiment, the anti-slip structure 160 includes multiple sets of first anti-slip grooves 162 disposed on the outer side wall of the outer ring 110. Each set of first anti-slip grooves 162 includes multiple first anti-slip grooves 162 evenly spaced around the outer ring 110. Specifically, the anti-slip structure 160 includes two sets of first anti-slip grooves 162, which are disposed on both sides of the outer ring 110, respectively connecting the first rim 130 and the second rim 140.

[0037] In one embodiment, the anti-slip structure 160 further includes multiple sets of second anti-slip grooves 164 disposed on the outer side wall of the outer ring 110 to enable drainage. Each set of second anti-slip grooves 164 includes multiple second anti-slip grooves 164 evenly spaced around the outer ring 110. Specifically, the anti-slip structure 160 includes two sets of second anti-slip grooves 164, which are disposed on both sides of the outer ring 110 respectively connecting the first rim 130 and the second rim 140. The length of the second anti-slip groove 164 is greater than the length of the first anti-slip groove 162, and the depth of the second anti-slip groove 164 is greater than the depth of the first anti-slip groove 162. The second anti-slip groove 164 extends from the middle of the outer ring 110 to the side of the outer ring 110 that connects to the first rim 130 or the second rim 140.

[0038] In one embodiment, each of the two adjacent sets of second anti-slip grooves 164 is staggered in the circumferential direction of the outer ring 110 to avoid the formation of a water film between the area of ​​the outer ring 110 located between the two adjacent sets of second anti-slip grooves 164 and the area where no second anti-slip groove 164 is provided and the ground, thereby preventing the outer ring 110 of the non-pneumatic tire 100 from slipping when rotating and moving on the ground.

[0039] like Figure 3As shown, in one embodiment, the axial dimension of the first support member 132 on the inner ring 120 increases from the middle of the first support member 132 to the two ends of the first support member 132 that connect to the outer ring 110 and the inner ring 120, respectively. This allows the two ends of the first support member 132 that connect to the outer ring 110 and the inner ring 120 to bear more load relative to the middle of the first support member 132 when the non-pneumatic tire 100 is under load, thereby reducing the deformation of the middle of the first support member 132. In this way, while ensuring the comfort of the non-pneumatic tire 100, its overall load-bearing capacity is also better.

[0040] In one embodiment, the axial dimension of the second support member 142 in the inner ring 120 increases from the middle of the second support member 142 to the two ends of the second support member 142 that connect the outer ring 110 and the inner ring 120, respectively. This allows the two ends of the second support member 142 that connect the outer ring 110 and the inner ring 120 to bear more load relative to the middle of the second support member 142 when the non-pneumatic tire 100 is under load, thereby reducing the deformation of the middle of the second support member 142. In this way, while ensuring the comfort of the non-pneumatic tire 100, its overall load-bearing capacity is also better.

[0041] like Figure 3 As shown, in one embodiment, the first support member 132 is provided with first material reduction holes 136 at both ends of the outer ring 110 and the inner ring 120 respectively, in order to save manufacturing materials for the non-pneumatic tire 100 and reduce costs. Figure 4 As shown, the second support member 142 is further provided with second material reduction holes 146 at both ends of the outer ring 110 and the inner ring 120 respectively, so as to save the manufacturing materials of the non-pneumatic tire 100 and reduce the cost.

[0042] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A non-pneumatic tire, characterized in that, include: The tire comprises an outer ring, an inner ring, a first rim, and a second rim. The outer ring is used to contact the ground. The first rim and the second rim are both disposed between the outer ring and the inner ring. The first rim includes a plurality of first support members circumferentially spaced around the inner ring. The second rim includes a plurality of second support members circumferentially spaced around the inner ring. The first support members and the second support members are offset axially from the inner ring and are inclined in opposite directions relative to the circumference of the inner ring, so that the first support members and the second support members are arranged in a manner similar to the legs of a human walking, thereby enhancing the load-bearing capacity of the non-pneumatic tire itself. The outer ring, the inner ring, the first rim, and the second rim together form a hollow channel, which is arranged circumferentially around the inner ring. The axial dimension of the first support member in the inner ring increases from the middle of the first support member to the two ends of the first support member that connect the outer ring and the inner ring respectively; and / or The axial dimension of the second support member in the inner ring increases from the middle of the second support member to the two ends of the second support member that connect the outer ring and the inner ring respectively.

2. The non-pneumatic tire according to claim 1, characterized in that, The plurality of first support members are evenly spaced around the inner ring in a circumferential direction; and / or Multiple second support members are evenly spaced around the inner ring in the circumferential direction.

3. The non-pneumatic tire according to claim 1, characterized in that, The tilt angle of the first support member and / or the second support member relative to the axial direction of the inner ring is adjustable.

4. The non-pneumatic tire according to claim 1, characterized in that, The cross-section of the hollow channel in the radial direction of the inner ring is any one of a circle, an ellipse, or a polygon.

5. The non-pneumatic tire according to claim 1, characterized in that, The size of the hollow channel in the radial direction of the inner ring is adjustable.

6. The non-pneumatic tire according to claim 1, characterized in that, The first wheel rim is provided with a plurality of first through holes penetrating the first wheel rim, and each first through hole is distributed between two adjacent first support members so that the two adjacent first support members are spaced apart.

7. The non-pneumatic tire according to claim 1, characterized in that, The second rim is provided with a plurality of second through holes penetrating the second rim, and each second through hole is distributed between two adjacent second support members so that the two adjacent second support members are spaced apart.

8. The non-pneumatic tire according to claim 1, characterized in that, An anti-slip structure is provided on the outer side wall of the outer ring.

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