CN213228213U

CN213228213U - Tire, wheel and vehicle

Info

Publication number: CN213228213U
Application number: CN202021291999.7U
Authority: CN
Inventors: 蒋托
Original assignee: Ninebot Beijing Technology Co Ltd
Current assignee: Ninebot Beijing Technology Co Ltd; Ninebot Changzhou Technology Co Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-05-18
Anticipated expiration: 2030-07-02

Abstract

The embodiment of the utility model provides a tire, wheel and vehicle, wherein, the tire includes: the tire comprises a tire body, wherein a plurality of pits are distributed on the peripheral surface of the tire body along the circumferential direction; the concave pit comprises a central pit and at least two exhaust grooves, the exhaust grooves are connected to the edge of the central pit and extend towards the direction far away from the central pit, one end of each exhaust groove is communicated with the central pit, and the at least two exhaust grooves are oppositely arranged in the rolling direction of the tire body; the width of the exhaust groove is smaller than a preset value, so that the exhaust groove can be closed when being pressed. The embodiment of the utility model provides a tire, wheel and vehicle can be according to the roughness automatic change its of ground of traveling and grab the land fertility, can adapt to multiple road conditions demand.

Description

Tire, wheel and vehicle

Technical Field

The utility model relates to a tool technical field that rides instead of, especially, relate to a tire, wheel and vehicle.

Background

When a vehicle travels on a snow or ice road surface, a snow tire or a nailing tire must be used to avoid slippage. However, in the season when ice or snow is melted, the snow tire and the nailing tire must be replaced with a summer tire having a weak grip because the snow tire and the nailing tire have a strong grip, so that problems such as excessive wear of the tire, excessive fuel consumption of the vehicle, and damage of the tire nail to the road surface can be avoided. Such frequent tire changes can be cost effective and time consuming. Therefore, it is very important to design a tire capable of automatically adjusting the grip to adapt to various road conditions.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made to solve the above problems or to at least partially solve the above problems.

The embodiment of the utility model provides a first aspect provides a tire, include: the tire comprises a tire body, wherein a plurality of pits are distributed on the peripheral surface of the tire body along the circumferential direction;

the concave pit comprises a central pit and at least two exhaust grooves, the exhaust grooves are connected to the edge of the central pit and extend towards the direction far away from the central pit, one end of each exhaust groove is communicated with the central pit, and the at least two exhaust grooves are oppositely arranged in the rolling direction of the tire body; the width of the exhaust groove is smaller than a preset value, so that the exhaust groove can be closed when being pressed.

Further, the other end of the exhaust groove is closed; and/or the cross section of the exhaust groove is rhombic.

Further, the length direction of the exhaust groove is consistent with the circumferential direction of the tire body, or the length direction of the exhaust groove and the circumferential direction of the tire body form an included angle.

Further, the number of the exhaust grooves is even, and the even number of the exhaust grooves are symmetrically arranged on two sides of the tire body in the rolling direction.

Furthermore, the number of the exhaust grooves is four, and the four exhaust grooves are uniformly distributed along the circumferential direction of the central pit.

Further, the shape of the end face of the open end of the center pit includes at least one of: circular, oval, polygonal.

Further, the inner wall surface of the central pit is an arc surface.

Further, the volume of the central pit is larger than that of the exhaust groove.

Further, a plurality of the dimples are arranged on the tire body at equal intervals in the circumferential direction of the tire body.

Further, the pit comprises at least two circles arranged along the width direction of the tire body, and the at least two circles of pits have intervals in the width direction of the tire body.

Furthermore, at least two circles of the pits are arranged in a staggered mode in the width direction of the tire body.

Further, first grooves arranged in the circumferential direction of the tire body are formed in the outer circumferential surface of the tire body and located on both sides of the first direction of the dimples, and second grooves communicating with the first grooves are formed on both sides of each of the second direction of the dimples;

wherein the first direction is the width direction of the tire body; the second direction is a circumferential direction of the tire body.

Further, the first groove is an annular groove.

Further, the tire body further includes a third groove, a length direction of the third groove extending from the second groove toward a radial edge of the tire body.

Further, the third groove is communicated with the second groove.

Furthermore, the width of the exhaust groove is less than or equal to 1 mm.

A second aspect of the embodiments of the present invention provides a wheel, including a rim and a spoke, and a tire as in any one of the above, the tire being mounted on the rim.

The embodiment of the utility model provides a third aspect provides a vehicle, the automobile body of including still include as above the wheel.

The embodiment of the utility model provides a tire, wheel and vehicle is equipped with a plurality of pits along circumference distribution on the outer peripheral face of tire body, and the pit includes central hole and two at least air discharge ducts, and the air discharge duct is connected in the edge of central hole, and the one end and the central hole intercommunication of air discharge duct, and on the direction of roll of tire body, two at least air discharge ducts set up relatively. Therefore, in the running process of a vehicle, along with the rolling of the tire body, the exhaust groove on one side of the rolling direction is firstly pressed and closed to extrude air into the center pit, the center pit is then pressed and deformed, the air in the center pit is exhausted through the exhaust groove on the other side of the rolling direction, the tire continuously rolls, and the exhaust groove on the other side of the rolling direction of the tire is also pressed and closed, so that the center pit forms a closed cavity, and the air pressure in the center pit is smaller than the external air pressure to form negative pressure, so that the tire is adsorbed on the running ground, and the ground gripping force of the tire is improved. The center hole forms the structure of similar sucking disc, and the ground of traveling is more smooth, and then the negative pressure that pit formed on the tire is big more, and it is strong more to grab the land fertility, and the ground of traveling is coarse more, and then the negative pressure that pit formed on the tire is little less, and it is little to grab the land fertility, consequently, can grab the land fertility according to road conditions automatically regulated, satisfies the demand of multiple road conditions.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an isometric view of a tire provided by an embodiment of the present invention;

fig. 2 is a front view of a tire according to an embodiment of the present invention;

fig. 3 is a partial schematic view of a tire according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a tire according to an embodiment of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 4.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

Furthermore, the term "coupled" is intended to include any direct or indirect coupling. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices. The following description is of the preferred embodiment of the present invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the invention. The protection scope of the present invention is subject to the limitations defined by the appended claims.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Fig. 1 is an isometric view of a tire provided by an embodiment of the present invention; fig. 2 is a front view of a tire according to an embodiment of the present invention; fig. 3 is a partial schematic view of a tire according to an embodiment of the present invention; fig. 4 is a cross-sectional view of a tire according to an embodiment of the present invention; fig. 5 is an enlarged view of a portion a in fig. 4. Referring to fig. 1 to 5, the tire provided by the present invention can be applied to any one of the following vehicles: bicycles, electric scooters, electric balance cars, electric vehicles, automobiles, karts, drift cars, all-terrain vehicles, and the like. The utility model discloses a tire includes: a tire body 10. The tire body 10 may be made of natural rubber or synthetic rubber, and has the functions of shock resistance and skid resistance, thereby ensuring the running stability and safety of the vehicle.

The tire body 10 is wound to form an inner peripheral surface X1 and an outer peripheral surface X2, the inner peripheral surface of the tire body 10 is used for being fixed to a rim, and the outer peripheral surface X2 of the tire body 10 is used for being in rolling contact with a running ground. A plurality of dimples 11 are circumferentially distributed on the outer peripheral surface X2 of the tire main body 10. The plurality of pits 11 can be uniformly and equidistantly distributed on the outer peripheral surface X2 of the tire body 10 along the circumferential direction of the tire body 10, and the shape and the size of each pit 11 can be the same, so that the effect of the ground gripping force of each pit 11 is the same, the problem that the ground gripping force of the tire is large when the tire rotates to a certain position and the ground gripping force of the tire is small when the tire rotates to a certain position is solved, and the running stability of the vehicle is improved.

The pit 11 comprises a central pit 111 and at least two exhaust grooves 112, the exhaust grooves 112 are connected to the edge of the central pit 111 and extend towards the direction far away from the central pit 111, one end of the exhaust groove 112 is communicated with the central pit 111, and in the rolling direction of the tire body 10, the at least two exhaust grooves 112 are oppositely arranged, for example, are respectively arranged at two sides of the central pit 111; the width of the air discharge groove 112 is smaller than a preset value so that the air discharge groove 112 can be closed when being pressed. Through experimental tests, the width of the vent groove 112 is preferably less than or equal to 1mm, so that the vent groove 112 can be reliably closed when being pressed.

Specifically, the center pit 111 is recessed inward in the radial direction of the tire body 10. The shape of the open end face of center hole 111 may include at least one of: circular, oval, polygonal. Wherein the polygon may include a triangle, a square, a diamond, a hexagon, etc.

The inner wall surface of the center pit 111 may be a curved surface, whereby the obstruction of the airflow flow inside the center pit 111 may be minimized, further improving the airflow flow efficiency. Moreover, when the vehicle is running on snow, the accumulated snow compaction falls more easily in the central pit 111, without affecting the negative pressure formation of the dimples 11 of the tire. The volume of center pit 111 may be much larger than the volume of vent groove 112 so that center pit 111 is able to create sufficient negative pressure. It will be appreciated that the size of the open end face of the central well 111 may be large enough so that when the central well 111 is pressurized, the central well 111 does not close, but only the vent slot 112 closes so that the central well 111 forms a closed cavity.

The central well 111 may be hemispherical, semi-elliptical, or multi-faceted. It should be noted that, when the central pit 111 is a multi-cube, it is not limited to the multi-cube in the strict sense, and the side wall of the multi-cube is not necessarily a plane, but also can be an arc surface with a certain radian, and this embodiment is not limited. In other embodiments, the shape of the end surface of the open end of the center hole 111 may be polygonal, and the wall surface inside the center hole 111 may be an arc surface, a spherical surface, etc., and the present invention is not limited thereto as long as the center hole 111 forms an instantaneous closed cavity when the exhaust groove 112 is closed.

The exhaust groove 112 may have an elongated shape, and a longitudinal direction of the exhaust groove 112 may pass through the center of the center pit 111, that is, for example, when the cross section of the center pit 111 is circular, the longitudinal direction of the exhaust groove 112 extends outward in a radial direction of the center pit 111. Thus, when the gas is pushed toward the center pit 111 by the gas discharge grooves 112 or discharged from the center pit 111, the gas can flow at the center position of the center pit 111 at all times, and the gas flow efficiency in the center pit 111 is improved.

The width of the air discharge groove 112 is smaller than a preset value, so that the air discharge groove 112 can be closed when being pressed, and therefore, in the rolling process of the tire, the air discharge groove 112 can be closed and self-locked to form a closed cavity, and negative pressure is formed.

The cross section of the exhaust groove 112 may be a diamond shape, and compared with a circular or square section, the exhaust groove 112 with a diamond-shaped section is easier to be pressed and deformed to be closed, thereby effectively ensuring the reliability of closing and opening of the exhaust groove 112.

The number of the exhaust grooves 112 corresponding to one center pit 111 may be two or more, and at least two exhaust grooves 112 corresponding to one center pit 111 are arranged oppositely in the rolling direction of the tire main body 10, and the opposite arrangement is not strictly opposite arrangement, but only one of the exhaust grooves 112 is located on the front side in the rolling direction of the tire main body 10, and the other exhaust groove is located on the rear side in the rolling direction of the tire main body 10. In this way, the exhaust groove 112 can play a role of exhausting air during rolling of the tire regardless of forward or backward movement of the vehicle.

The center pit 111 can form an instantaneous closed cavity through the closure of the exhaust groove 112, so that the tire grip force is ensured, the exhaust groove 112 enables the tire to gradually release the negative pressure of the center pit 111 in the rolling process, the tire is not too tight to grip the ground, the sudden release of the tire for releasing the negative pressure of the center pit 111 is avoided, the problem of obvious vibration sense in the vehicle driving process is caused, the grip force of the vehicle is further ensured, and the vehicle driving stability is improved.

When the vehicle runs on a smooth road surface such as a snowfield and an ice surface, the central pit 111 can form a closed structure similar to a sucker, and it can be understood that the suction force is larger when the negative pressure of the sucker on the smoother surface is larger, so that the tire provided by the embodiment has larger suction force and stronger ground holding force when the tire runs on the snowfield, the ice surface and the smooth road surface, the phenomenon of tire slip can be effectively avoided, and the running safety of the vehicle is improved. Particularly, the tire can form negative pressure, so that the pressed snow column is firmer when the snow road surface rolls, and the snow holding force is effectively enhanced. When the vehicle runs on a rough road surface such as asphalt, cement and the like, the central pit 111 can form a closed structure similar to a sucker, and it can be understood that the suction force of the sucker on the rough surface is smaller, so that the suction force is smaller, the grip force is weaker, the oil consumption is prevented from being too high, the excessive wear of the tire is prevented, and the service life of the tire is prolonged.

In addition, it is noted that when the vehicle runs on rainy days or rainy roads, a water film is easily formed on the road, and the vehicle is easy to slip, but with the tire provided by this embodiment, because a negative pressure can be formed at the center pit 111, the water film formed by the surface tension of the tire can be broken through the negative pressure, so as to enhance the wet grip and ensure the driving safety comprehensively.

The tire that this embodiment provided is equipped with a plurality of pits along circumference distribution on the outer peripheral face of tire body, and the pit includes central hole and two at least exhaust grooves, and the exhaust groove is connected in the edge of central hole, and the one end and the central hole intercommunication of exhaust groove, and in the direction of rolling of tire body, two at least exhaust grooves set up relatively. Therefore, in the running process of a vehicle, along with the rolling of the tire body, the exhaust groove on one side of the rolling direction is firstly pressed to be closed and self-locked to extrude air into the center pit, the center pit is then pressed to deform, the air in the center pit is exhausted through the exhaust groove on the other side of the rolling direction, the tire continuously rolls, the exhaust groove on the other side of the rolling direction of the tire is also pressed to be closed and self-locked, so that the center pit forms an instant closed cavity, the air pressure in the center pit is smaller than the external air pressure to form negative pressure, the tire is adsorbed on the running ground, and the ground gripping force of the tire is improved. The center hole forms the structure of similar sucking disc, and the ground of traveling is more smooth, and then the negative pressure that pit formed on the tire is big more, and it is strong more to grab the land fertility, and the ground of traveling is coarse more, and then the negative pressure that pit formed on the tire is little less, and it is little to grab the land fertility, consequently, can grab the land fertility according to road conditions automatically regulated, satisfies the demand of multiple road conditions. Moreover, the exhaust grooves are arranged on the two sides of the rolling direction of the tire, so that the vibration sense of the vehicle in the running process is reduced.

In the above embodiment, it is preferable that the other end of the vent groove 112 is closed, so that the vent groove 112 is more easily closed during the rolling process of the tire, and the central pit 111 is more easily formed into a closed cavity to form a negative pressure. In other embodiments, the other end of the air discharge groove 112 may communicate with other grooves on the tire body 10 to form a non-closed shape, and for this way, the function of this embodiment can be achieved as long as the air discharge groove 112 is designed reasonably to enable the air discharge groove 112 to be closed under pressure.

Further, the exhaust groove 112 is elongated, and the length direction of the exhaust groove 112 may be the same as the circumferential direction of the tire body 10, or the length direction of the exhaust groove 112 may form an angle with the circumferential direction of the tire body 10.

Specifically, when the number of the exhaust grooves 112 is two, the length direction of one of the exhaust grooves 112 may extend forward in the circumferential direction of the tire body 10, and the length direction of the other exhaust groove 112 may extend rearward in the circumferential direction of the tire body 10; of course, alternatively, the length direction of one of the air discharge grooves 112 may extend forward along a direction forming a first included angle with the circumferential direction of the tire body 10, and the length direction of the other air discharge groove 112 may extend backward along a direction forming a second included angle with the circumferential direction of the tire body 10.

When the number of the exhaust grooves 112 is two or more, the length direction of each exhaust groove 112 may be parallel to the circumferential direction of the tire body 10, or the length direction of each exhaust groove 112 may have an included angle with the circumferential direction of the tire body 10, or the length direction of a part of the exhaust grooves 112 is parallel to the circumferential direction of the tire body 10, and the length direction of another part of the exhaust grooves 112 has an included angle with the circumferential direction of the tire body 10.

Preferably, the number of the vent grooves 112 is even, and the even vent grooves 112 are symmetrically provided on both sides of the tire main body 10 in the rolling direction. Thus, the effect of the tire on the ground holding force is the same when the vehicle moves forwards or backwards.

In the present embodiment, as shown in fig. 1 to 3, the number of the exhaust grooves 112 may be four, and four exhaust grooves 112 may be uniformly arranged in the circumferential direction of the center pit 111. The edge locus of the end surface of center pit 111 may be referred to as the circumferential direction of center pit 111 as long as center pit 111 is in a closed shape by surrounding it, regardless of the shape of the end surface of center pit 111, such as a circle, an ellipse, or a polygon. The four exhaust grooves 112 are uniformly arranged along the circumferential direction of the central pit 111, and the structural shape and the size of each exhaust groove 112 can be the same, so that the consistent ground holding effect of the tire is strictly ensured in the process of advancing or retreating the vehicle.

In some embodiments, the dimples 11 may include at least two turns arranged in the width direction of the tire body 10, the at least two turns of the dimples 11 having a pitch in the width direction of the tire body 10. Through setting up two at least rings of pits 11, so, in the vehicle driving process, further improve and grab the land fertility, improve the safety of traveling.

Further, at least two rings of dimples 11 may be provided so as to be offset in the width direction of the tire body 10. Thus, the pits 11 are dense in the width direction and the circumferential direction of the tire body 10, and the ground-gripping and anti-skid effect of the tire is further ensured.

In some embodiments, as shown in fig. 1 to 3, on the outer circumferential surface X2 of the tire body 10 and on both sides of the dimples 11 in the first direction, there are first grooves L1 arranged in the circumferential direction of the tire body 10, and on both sides of each dimple 11 in the second direction, there are second grooves L2 communicating with the first grooves L1; wherein the first direction is a width direction of the tire body 10; the second direction is a circumferential direction of the tire body 10. In the present embodiment, the first groove L1 may be an annular groove, the length direction of the second groove L2 may be parallel or not parallel to the width direction of the tire body 10, and in the present embodiment, the length direction of the second groove L2 is not parallel to the width direction of the tire body 10. Each or a plurality of pits 11 are surrounded by the first groove L1 and the second groove L2 through the first groove L1 and the second groove L2, in the embodiment, every two pits 11 are surrounded by the first groove L1 and the second groove L2, the first groove L1 is communicated with the second groove L2 to form a single rubber block on the tire body 10, so that the pits 11 are formed on the small rubber blocks, deformation of the pits 11 is easier, the exhaust grooves 112 are easier to be pressed, closed and opened, reliability of negative pressure formation of the pits 11 on the tire body 10 is improved, and tire grip force is ensured. On the other hand, the first groove L1 and the second groove L2 can also play a role in shock absorption, air exhaust and water drainage, and the using effect of the tire is further improved.

In some embodiments, as shown in fig. 1-3, the tire body 10 may further include a third groove L3, the length direction of the third groove L3 extending from the second groove L2 toward the radial edge of the tire body 10. Preferably, the third groove L3 communicates with the second groove L2. Thus, the first groove L1, the second groove L2 and the third groove L3 are communicated, the buffering performance of the tire is effectively improved, water drainage, vibration reduction and tire noise reduction on the tire can be facilitated, and the driving comfort is enhanced.

It can be understood that a plurality of first grooves L1 can be evenly arranged along the circumference of tire body 10, a plurality of second grooves L2 can be evenly arranged along the circumference of tire body 10, and a plurality of third grooves L3 can be evenly arranged along the circumference of tire body 10, so that the balance of vibration damping effect is ensured during the rolling process of the tire, and the running stability of the vehicle is improved, and the driving comfort is improved.

It should be noted that the embodiment of the present invention provides a tire body with a number of pits and an arrangement of the pits that is not limited, as long as the function of flexibly adjusting the grip force can be implemented, and the embodiment is not particularly limited.

Example two

The present embodiment provides a wheel comprising a rim and spokes, and a tire as provided in the first embodiment.

The structure and function of the tire in the wheel in this embodiment are the same as those in the first embodiment, and specific reference may be made to the description of the first embodiment, which is not described again in this embodiment.

EXAMPLE III

The present embodiment provides a vehicle, and the vehicle in the present embodiment may include any one of the following: bicycles, electric scooters, electric balance cars, electric vehicles, automobiles, karts, drift cars, all terrain vehicles, and the like. Specifically, the vehicle of the present embodiment includes a vehicle body, and further includes a wheel as provided in the second embodiment.

The structure and function of the tire used by the vehicle in this embodiment are the same as those in the first embodiment, and specific reference may be made to the description of the first embodiment, which is not described again in this embodiment.

Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A tire, comprising: the tire comprises a tire body, wherein a plurality of pits are distributed on the peripheral surface of the tire body along the circumferential direction;

2. The tire of claim 1, wherein the other end of the vent slot is closed;

and/or the cross section of the exhaust groove is rhombic.

3. The tire according to claim 1, wherein a length direction of the vent groove coincides with a circumferential direction of the tire body, or the length direction of the vent groove has an angle with the circumferential direction of the tire body.

4. The tire according to claim 1, wherein the number of the vent grooves is an even number, and the even number of the vent grooves are symmetrically provided on both sides of the tire body in the rolling direction.

5. The tire according to claim 4, wherein the number of the vent grooves is four, and four vent grooves are uniformly arranged in the circumferential direction of the center pit.

6. The tire of claim 1, wherein the shape of the end face of the open end of the centerpit comprises at least one of: circular, oval, polygonal.

7. The tire of claim 6, wherein the inner wall surface of the center hole is a cambered surface.

8. The tire of claim 1, wherein the volume of the centerpit is greater than the volume of the vent groove.

9. The tire of claim 1, wherein a plurality of the dimples are arranged on the tire body equidistantly in a circumferential direction of the tire body.

10. The tire of claim 9, wherein the dimples comprise at least two turns disposed along a width direction of the tire body, the at least two turns of the dimples having a pitch in the width direction of the tire body.

11. The tire of claim 10, wherein at least two of said rings of dimples are staggered across the width of the tire body.

12. The tire according to claim 1, wherein first grooves arranged in a circumferential direction of the tire body are provided on an outer circumferential surface of the tire body on both sides of the dimples in the first direction, and second grooves communicating with the first grooves are provided on both sides of each dimple in the second direction;

13. The tire of claim 12, wherein the first groove is an annular groove.

14. The tire of claim 12, wherein the tire body further comprises a third groove extending lengthwise from the second groove toward a radial edge of the tire body.

15. The tire of claim 14, wherein the third groove is in communication with the second groove.

16. The tire of claim 1, wherein the vent slot has a width of ≦ 1 mm.

17. A wheel comprising a rim and spokes and a tyre as claimed in any one of claims 1 to 16 mounted on said rim.

18. A vehicle comprising a body and further comprising a wheel according to claim 17.