Claims:We claim:

1. An adaptive wheel (10) for a vehicle, the wheel (10) comprising:
a wheel hub (8) mountable on an axle of the vehicle;
a rim (5) concentrically supported on the wheel hub (8);
a tyre mounted on the rim (5), wherein the tyre comprising:
an outer section (6); and
an inner section (7);
wherein a space (9) defined between the outer section (6) and the inner section (7) of the tyre to accommodates a fluid medium; and
a plurality of relief pistons (11) positioned between the inner section (7) of the tyre and the rim (5),
wherein, each of the plurality of relief pistons (11) are configured to move towards at least one of the rim (5) and the inner section (7) of the tyre to dynamically vary radius of the tyre.

2. The wheel (10) as claimed in claim 1 comprises a plurality of pusher arms (13) connecting the hub (8) and the rim (5), wherein each of the plurality of pusher arms (13) are configured to move towards at least one of the hub (8) and the rim (5).

3. The wheel (10) as claimed in claim 1, wherein at least one first resilient members (2) is provided between each of the plurality of relief pistons (11) and the rim (5) to aid in movement of the plurality of relief pistons (11).

4. The wheel (10) as claimed in claim 2, wherein at least one of a second resilient member (3) is provided at one end of each of the plurality of pusher arms (13), wherein the second resilient member (3) contacts at least two adjacent relief pistons (11) of the plurality of relief pistons (11).

5. The wheel (10) as claimed in claim 1, wherein the outer section (6) of the tyre and the inner section (7) of the tyre is made of a hard rubber material.

6. The wheel (10) as claimed in claim 5, wherein at least a portion of the outer section (6) of the tyre and the inner section (7) of the tyre includes a soft rubber material (4 and 4a).

7. The wheel (10) as claimed in claim 1, wherein the fluid medium is at least one of air or nitrogen.

8. The wheel (10) as claimed in claims 3 and 4, wherein the first resilient member (2) and the second resilient member (3) is at least one of a spring and a bellow.

9. The wheel (10) as claimed in claims 1 and 2, wherein the plurality of pusher arms (13) and the plurality of relief pistons (11) are positioned alternative to each other.

10. The wheel (10) as claimed in claim 9, wherein each of the plurality of pusher arms (13) is configured to move radially inward and outward between the hub (8) and the rim (5).

11. A vehicle comprising an adaptive wheel (10) as claimed in claim 1.
, Description:TECHNICAL FIELD

The present disclosure generally relates to the field of automobiles. Particularly but not exclusively, the present disclosure relates to a wheel of a vehicle. Further embodiments of the present disclosure disclose an adaptive wheel which can offer dynamic tyre radius during operation of the vehicle.

BACKGROUND

A tyre is a strong, flexible rubber casing attached to rim of a wheel. Tyres provide a gripping surface for traction and serve as a cushion for the wheels of a moving vehicle. Tyres are found in automobiles such as trucks, buses, aircraft landing gear, tractors and other farm equipment’s, industrial vehicles such as forklifts, and common conveyances such as baby carriages, shopping carts, wheel chairs, bicycles, and motorcycles. Tires for most vehicles are pneumatic, air is held under pressure inside the tire. Pneumatic tires conventionally include an inner tube to hold the air pressure, however pneumatic tires are now designed to form a pressure seal with the rim of the wheel.

The wheels may be used in automobiles to interconnect the rotating hub and the rubber tire. Generally, wheel is an annular member having a rim with a pair of spaced rim flanges for engaging the bead of the tire. A spider may be fixed within the rim which typically includes a plurality of spokes with cut in openings for venting air to the brakes. The spider also includes a plurality of lug stud holes for receiving lug studs protruding from the rotating hub. Lug nuts are threaded on the lug studs for securely clamping the wheel and tire to the rotating hub.

It is well known that the traction of vehicles on soft terrain may be greatly improved by decreasing the pressure within the tires. By decreasing the pressure, the tire supporting surface will increase thereby enlarging the contact area between the tires and the terrain. Additionally, it is often desirable to decrease the tire pressure to increase riding comfort on rough roads. On the other hand, higher pressures of the tyres decrease rolling resistance and tire temperatures on smooth roads thereby increasing economy and safety. It would be desirable to be able to adjust the pressure within the tires without having to stop the vehicle. But the conventional wheel assemblies are rigid, and do not adapt to the conditions of the terrains. Thus, failing to adapt the pressure on the tyres automatically. The assemblies currently in use may also not sustain as much of wear and tear, due to the torque generated by the vehicle. The rubber profile also remains the same throughout the wheel which does not necessarily prove enough to sustain extreme friction.

The present disclosure is directed to overcome one or more limitations stated above or other such relevant limitations associated with conventional art.

SUMMARY OF THE DISCLOSURE

One or more shortcomings of the conventional wheel are overcome by the wheel as claimed and additional advantages are provided through the provision of the wheel as claimed in the present disclosure.

Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.

In one non-limiting embodiment of the disclosure an adaptive wheel for a vehicle is disclosed. The wheel includes a wheel hub mountable on an axle of the vehicle and a rim which is concentrically supported on the wheel hub. Also, the wheel includes a tyre mounted on the rim. The tyre further comprises of an outer section and an inner section, and a space defined between the outer section of the tyre and the inner section of the tyre is accommodated by a fluid medium. Also, a plurality of relief pistons is positioned between the inner section of the tyre and the rim. Each of the plurality of relief pistons are configured to move towards at least one of the rim and the inner section of the tyre to dynamically vary radius of the tyre.

In an embodiment of the disclosure, the wheel includes plurality of pusher arms connecting the hub and the rim. Each of the plurality of pusher arms are configured to move towards at least one of the hub and the rim.

In an embodiment of the disclosure, at least one first resilient members is provided between each of the plurality of relief pistons and the rim. The first resilient member aids in movement of the plurality of relief pistons.

In an embodiment of the disclosure, at least one second resilient member is provided at a one end of the plurality of pusher arms. The second resilient member contacts at least two adjacent relief pistons of the plurality of relief pistons.
In an embodiment of the disclosure, the outer section of the tyre and the inner section of the tyre is made of a hard rubber material.

In an embodiment of the disclosure, at least a portion of the outer section of the tyre and the inner section of the tyre includes a soft rubber material.

In an embodiment of the disclosure, the fluid medium is at least one of air or water.

In an embodiment of the disclosure, the first resilient member and the second resilient member and the second resilient member is at least one of a spring and bellows.

In an embodiment of the disclosure, the plurality of pusher arms and the plurality of relief pistons are positioned alternatively to each other.

In an embodiment of the disclosure, each of the plurality of pusher arm is configured to move radially inward and outward between the rim and the hub.

It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined together to form a further embodiment of the disclosure.

The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.

BRIEF DESCRIPTION OF THE ACCOMPANYING FIGURES

The novel features and characteristics of the disclosure are set forth in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:

FIG.1 illustrates a front sectional view of an adaptive wheel for a vehicle, in accordance with an embodiment of the present disclosure.

FIG.2 illustrates a side sectional of the adaptive wheel of the FIG.1, in accordance with an embodiment of the present disclosure.

FIG.3 illustrates a condition of the adaptive wheel of FIG.1 when it is in equilibrium condition, in accordance with an embodiment of the present disclosure.

FIG.4 illustrates a condition of the adaptive wheel of FIG.1 when it is subjected to tractive forces, in accordance with an embodiment of the present disclosure.

FIG.5 illustrates a condition of the adaptive wheel of FIG.1 when it is normal driving conditions, in accordance with an embodiment of the present disclosure.

FIG.6 illustrates a condition of the adaptive wheel of FIG.1 during braking, in accordance with an embodiment of the present disclosure.

FIG.7 illustrates a condition of the adaptive wheel of FIG.1 in case of sudden impacts on the wheel, in accordance with an embodiment of the present disclosure

The figure depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the wheel illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAILED DESCRIPTION

The foregoing has broadly outlined the features and technical advantages of the present disclosure in order that the detailed description of the disclosure that follows may be better understood. Additional features and advantages of the disclosure will be described hereinafter which form the subject of the claims of the disclosure.

It should be appreciated by those skilled in the art that the conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other assemblies for carrying out the same purposes of the present disclosure. It should also be realized by those skilled in the art that such equivalent processes do not depart from the scope of the disclosure as set forth in the appended claims. The novel features which are believed to be characteristic of the disclosure, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, and designed in a wide variety of different configurations, all of which are explicitly contemplated and make part of this disclosure.

Embodiments of the present disclosure discloses an adaptive wheel for a vehicle. Unlike the conventional wheel assemblies, the wheel of the present disclosure may be capable of adapting the radius of the tyre dynamically based on the several conditions such as speed and torque of the vehicle. The wheel may be configured to smoothly and relentlessly adapt the radius of the tyre dynamically. Also, the usage of the adaptive wheel of the present disclosure, reduces the chances of a tyre burst due to sudden impact loads and also the adaptive wheel improves the braking efficiency of the vehicle.

In an embodiment, the adaptive wheel may be configured to be accommodated fixedly on an axle of the vehicle. The adaptive wheel of the present disclosure includes a wheel hub, a rim and a tyre mounted on the rim. The tyre includes an outer section and the inner section wherein a space is defined between the outer section and the inner section to accommodate a fluid medium such as air or nitrogen. The two sections of the tyre are made of hard rubber material. The tyre may also include multiple portions of soft rubber material. The soft rubber portions aid in expansion and contraction of the two sections of the tyre based on the conditions the tyre has to adapt.

The adaptive wheel may further include a plurality of relief pistons that may be positioned between the inner section of the tyre and the rim. The relief piston includes a piston head and a first resilient member which maybe coupled to the piston head. The piston head and the first resilient member forms a integral part of the relief pistons. The piston head may be configured force the inner section of the tyre and the first resilient member may be configured to be secured to the rim of the vehicle. The wheel further includes a plurality of pusher arms which may be configured to connect the rim and the hub of the vehicle. A first end of the plurality of pusher arms defining a head of the pusher arms may be connected to the hub and a second end protrudes out of the rim and may be coupled with a second resilient member. In an embodiment, the plurality of relief pistons and the plurality of pusher arms may be positioned alternatively to one another. The second resilient member may be configured such that it may contact at least two adjacent relief pistons of the plurality of relief pistons. In an embodiment, the first resilient member and the second resilient member may undergo expansion and contraction as per conditions of the road or terrain. The first resilient member and the second resilient member may be at least one of a spring or a bellow. The adaptive wheel enables effective utilization of engine torque. The tyre also aids in reduction of shock during excessive braking. Further, the adaptive wheel completely eliminates the unintended tyre bursts caused due to impact loads which may cause severity for the occupants of the vehicle.

While the disclosure is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the figures and will be described in detail below. It should be understood, however that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.

The terms “comprises”, “comprising”, or any other variations thereof used in the specification, are intended to cover a non-exclusive inclusion, such that an wheel that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or method. In other words, one or more elements in a wheel proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the wheel.

Henceforth, the present disclosure is explained with the help of one or more figures of exemplary embodiments. However, such exemplary embodiments should not be construed as limitation of the present disclosure. In the figures neither the vehicle nor the complete wheel is depicted for the purpose of simplicity. One skilled in the art would appreciate that the wheel may be employed in any vehicle including but not limiting to passenger vehicles, commercial vehicles, and the like. However, vehicle is not shown in the figures for the purpose of simplicity.

The following paragraphs describe the present disclosure with reference to FIG.1 to FIG.7.

FIG.1 is an exemplary embodiment of the present disclosure, illustrating a front sectional view of an adaptive wheel (10) of a vehicle. The (10) broadly includes a wheel hub (8), a rim (5) and a tyre. In an embodiment, the wheel hub may be mountable on an axle of the vehicle. The adaptive wheel (10) may be used in vehicles such as but not limiting to passenger cars and commercial vehicles. The wheel (10) may be secured in the axle of the vehicle by mechanical joining process, such as but not limiting to fastening. In an embodiment, the wheel (10) may be snap fitted with the axle of the vehicle. In an exemplary embodiment, the adaptive wheel wheel (10) may be employed in vehicles that may be used in rough terrain conditions.

In an embodiment, the rim (5) may be concentrically supported on the wheel hub (8). The rim (5) may be made of materials such as steel, alloys of magnesium and aluminium may also be used to make the rims for the wheel hub (8) of the vehicle. The hub (8) associated with the rim (5) may be then mounted onto the axle of the vehicle [not shown]. In an embodiment, the tyre may be mounted onto the rim (5) of the adaptive wheel (10). The tyre may further include an outer section (6) and an inner section (7). In an embodiment, the outer section (6) may be a portion that may come in contact with a pathway (14) such as road surface. The inner section (7) of the tyre may be configured to be attached to the rim (5) of the adaptive wheel (10). In an embodiment, a space (9) may be defined between the inner section (7) of the tyre and the outer section (6) of the tyre. The space (9) may be filled by at least one of air, or nitrogen. In an embodiment, the outer section (6) of the tyre and the inner section (7) of the tyre may be made of hard rubber materials. Further, at least some portions of the outer section (6) and the inner section (7) of the tyre may include a soft rubber material (4 and 4a). The soft rubber material (4 and 4a) may expand or contract when subjected to loads based on the conditions the tyre may be exposed to.

In an embodiment as shown in FIG.2, a plurality of relief pistons (11) may be positioned between the inner section (7) of the tyre and the rim (5). The relief piston (11) may further include a piston head (1) and a first resilient member (2). The first resilient member (2) may be coupled to the piston head (1) of the plurality of relief pistons (11). In an embodiment, the piston head (1) may be forced against the inner section (7) to move it either inwardly or outwardly. One of the ends of the first resilient member (2) may be connected to the rim (5) and another end of the first resilient member (2) may be connected to the piston head (11) of the relief pistons (11). In an embodiment, the piston head (1) and the first resilient member (2) may form the integral part of the relief piston (11). The first resilient member (2) used in the relief piston (11) may be at least one of spring or bellows. The plurality of relief pistons (11) maybe positioned between the inner section (7) of the tyre and the rim (5) over the entire circumferential surface of the rim (5) of the adaptive wheel (10). Each one of the pluralities of relief pistons (11) may be configured to move towards at least one of the rim (5) and the inner section (7) of the tyre. The movement of each one of the relief pistons (11) provide a space for contraction of the tyre, and thereby it may dynamically vary radius of the tyre. The radius may dynamically vary based on the conditions of the pathway (14) or the road surface and habitual driving instances. The habitual driving instances may be sudden acceleration which may require higher traction forces or other such kinds of instances.

Further, the hub (8) may be connected to the rim (5) through a plurality of pusher arms (13). The plurality of pusher arms (13) may include a first end (12) and a second end (3). In an embodiment, the first end (12) of the plurality of pusher arms (13) may be defined with a head (14). The head (14) may be configured to be reside in a proviso defined in the hub (8) of the adaptive wheel (10). Also, the second end (3) of the plurality of the pusher arms (13) may be provisioned on the inner part of the rim (5). The second end (3) of the plurality of pusher arms (13) may be coupled to a second resilient member (3). The second resilient member (3) may be at least one of the springs or bellows. The pusher arms (13) may be similar to spokes of a bicycle wheel, that may hold the rim (5) and the hub (8) in position. Further, the second resilient member (3) may be configured to contact at least two of the adjacent relief pistons (11). The plurality of pusher arms (13) and the plurality of relief pistons (11) may be placed in their specified positions alternative to one another. In an embodiment, the plurality of pusher arms (13) may be configured to move radially inward and outward between the hub (8) and the rim (5). The radial movement of the pusher arms (13) may enable it to move towards at least one of the hub (8) and the rim (5). The movement of the plurality of pusher arms (13) and the plurality of relief pistons (11) may be interdependent, i.e. the movement of one of these may cause the other to move based on different conditions [the same is explained further in the disclosure].

In operation, when the adaptive wheel (10) is in an equilibrium position, in other words when the wheel may be in non-moving state, the plurality of the pusher arms (13) rest on the plurality of the relief pistons (11). In this equilibrium condition, the plurality of relief pistons (11) may push the inner section (7) of the tyre over the entire circumferential surface. The first resilient member (2) of the plurality of relief pistons (11) ensures that the inner section (7) of the tyre expands. In an embodiment, the plurality of relief pistons (11) pushes the inner section (7) of the tyre radially outward causing the soft rubber portions (4a) to stretch. Once the soft rubber (4a) is stretched, it pushes the fluid medium filled in the space between the outer section (6) and inner section (7) of the tyre. The fluid medium in turn pushes the outer section (6) of the tyre [pressure is transferred from fluid medium onto the outer section] and the portions of the soft rubber (4) in the outer section (6) gets completely stretched. The two sections (6 and 7) of the tyre remain circular even after the soft rubber is stretched due to the pressure induced by the relief pistons (11). In this condition, the radius of the tyre may be considered as “X” millimetre (mm) as shown in FIG.3.

Further, when we consider the adaptive wheel (10) begins to be driven, the engine driven torque rotates the hub (8) in the either one of a clockwise or an anti-clockwise direction. Now, based on requirement of torque, the plurality of pusher arms (3) may get pulled radially inward towards the hub (8) of the wheel (10). The second resilient member (3) provisioned or coupled to the second end (3) of the plurality of pusher arms (13) may get compressed. Further, the movement of the plurality of pusher arms (13) in the radially inward direction [towards the hub] may allow the plurality of relief pistons (11) to move radially inward towards the rim (5). The radial inward movement of the plurality of relief pistons (11) may be caused due to the pressure from the inner section (7) of the tyre onto the relief pistons (11), reducing the pressure over the outer section (6) of the tyre. Further, the reduction of pressure over the outer section (6) may result in the overall reduction of the stretching of the portions of soft rubber (4) in the outer section (6) of the tyre. The reduction in stretching in the outer section (6) of the tyre may reduce the effective tyre dynamic radius and provide better torque to the wheels. This condition may allow more traction forces than normal by reducing the radius of the tyre from “X” mm to a certain extent say [X’] [best shown in FIG.4]. Once the engine torque is reduced to normal driving pattern, the relative traction between the hub (8) and the outer section (6) of the tyre will be minimal. The plurality of pusher arms (13) will rest [no radially inward pull or outward pull] over the plurality of relief pistons (11) resulting in taking the entire wheel (10) to the equilibrium condition. Thus, increasing the dynamic radius of the tyre back to “X” mm, as shown in FIG.5

Further, during braking more force may be acting on the outer section (6) of the tyre. The force on the outer section (6) of the tyre will be transferred to the inner section (7) of the tyre through the fluid medium filled in between the two sections (6 and 7). The inner section (7) of the tyre will transfer the force or pressure to the plurality of relief pistons (11). The plurality of relief pistons (11) further compress and move radially inward towards the rim (5). The radially inward movement of the plurality of relief pistons (11) may push the plurality of pusher arms (13) inward towards the hub (8) of the wheel (10), thereby relieving some amount of pressure over the plurality of pistons (11). Thus, as an effect of braking the dynamic radius may be reduced effectively to a certain extent say [X’] as shown in FIG.6, thereby improving the braking performance. The moment brake is released the entire wheel (10) may regain its original radius “X” mm as in the case of equilibrium condition. Also, during the sudden impacts over the wheel (10), that may be caused due to the wheel running into the ditch or pot holes excessive pressure may be applied on the outer section (6) of the tyre. The excessive pressure [impact] will be further transferred to the inner section (7) of the tyre. The pressure from the inner section (7) may push the plurality of relief pistons (11) radially inward. Once the relief pistons (11) move radially inward towards the rim (5) it also pushes the pusher arm (13) radially inward towards the hub (5). Thus, the tyre of the adaptive wheel (10) may get pinched as shown by “Y” [shown in FIG.7] at the impact location temporarily. The advantage of this may be no tyre burst due to the high pressure on the wheel (10) when it encounters any such ditches and potholes.

In an embodiment, the present disclosure discloses an adaptive wheel (10) for a vehicle. The wheel (10) offers advantages, including but not limited to, adaptable tyre dynamic radius based on the speed and the torque that may be transferred to the wheels. As the tyre can adapt the radius dynamically, at high speeds, the tyre dynamic radius may also be higher which provides optimum fuel economy. Also, the lower tyre dynamic radius at lower speeds ensures highest possible axial thrust reducing load on axle and gearbox. Further, the adaptive radius of the wheel operates smoothly and relentlessly based on the speed and the torque of the engine or vehicle. Also, the tyre life of the adaptive wheel (10) increases.

It may be noted that, one skilled in the art would modify the configuration of the adaptive wheel to suit different without deviating from scope of the disclosure. Such modifications should be considered as a part of the present disclosure.

Equivalents

With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.

It will be understood by those within the art that, in general, terms used herein, are generally intended as "open" terms (e.g., the term "including" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," the term "includes" should be interpreted as "includes but is not limited to," etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding the description may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an" (e.g., "a" and/or "an" should typically be interpreted to mean "at least one" or "one or more"); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of "two recitations," without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to "at least one of A, B, and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, and C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to "at least one of A, B, or C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B, or C" would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase "A or B" will be understood to include the possibilities of "A" or "B" or "A and B."

While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated in the description.

Referral Numerals:
Description Reference Number
Adaptive wheel 10
Piston head 1
First resilient member for relief piston 2
Second resilient member for pusher arm 3
Soft rubber of the outer section of the tube 4
Soft rubber of the inner section of the tube 4a
Rim 5
Outer section of the tyre 6
Inner section of the tyre 7
Hub of the wheel 8
Space to accommodate a fluid medium 9
Relief piston 11
Pusher arm 12
Pusher arm member 13
Pathway 14