526results about "Non-inflatable tyres" patented technology

The present invention relates to an elastomeric laminate comprising at least two adjacent layers, wherein: the rubber composition constituting the first layer is based on 20 phr to 100 phr of at least one copolymer comprising ethylene units and 1,3-diene units of formula CH2=CR-CH=CH2, the ethylene units in the copolymer representing more than 50 mol% of the copolymer monomer units, and the symbol R represents a hydrocarbon chain having 3 to 20 carbon atoms, 0 phr to 80 phr of at least one diene elastomer having a diene unit weight concentration greater than 50%, 10 phr to 100 phr of a plasticizing system comprising at least one plasticizing resin having a glass transition temperature higher than 20°C and / or at least one plasticizer which is liquid at 23°C, and a reinforcing filler, and a crosslinking system; the rubber composition constituting the second layer is based on a diene elastomer having a diene unit weight concentration greater than 50% and a crosslinking system. The present invention also relates to a rubber article, in particular a pneumatic or non-pneumatic tire, comprising such a laminate.

A non-pneumatic tire defining axial, radial, and circumferential directions. The tire includes an annular lattice structure extending radially between an inner circumferential edge and an outer circumferential edge. The lattice structure exhibits topological polarization, with the inner circumferential edge being stiffer than the outer circumferential edge. The topological polarization includes asymmetry in mechanical response to opposing forces applied to the inner and outer circumferential edges. The lattice structure which provides topological polarization endows the tire with localized softness along the outer radius, which enables extreme absorption of asperities, without transferring significant forces to the axle. In some embodiments, the lattice structure further exhibits topological protection, including the topological polarization characteristics being maintained upon experiencing wear at the outer circumferential edge. In some embodiments, the lattice structure is, or is akin to, a Kagome lattice arrangement.

A wheel assembly to be coupled to a hub of a vehicle may include an inner rim to be coupled to the hub of the vehicle, an outer rim surrounding the inner rim. A rigid cover ring may be coupled to the outer rim and extend radially inward toward the inner rim. Gas springs may be operatively coupled between the inner and outer rims to provide a gas suspension for relative movement between the inner and outer rims. Fastener assemblies fasten the rigid cover ring to the outer rim, fastening each gas spring to the outer rim, or fastening each gas spring to the outer rim. Each fastener assembly may include a fastener and a pair of indicator-lock washers carried by the fastener. Each indicator-lock washer may have respective sloped surfaces slidably engaging one another to permit relative rotation so that loosening from a fully tightened position exposes a gap.

A wheel assembly to be coupled to a hub of a vehicle may include an inner rim to be coupled to the hub of the vehicle, an outer rim surrounding the inner rim, and gas springs operatively coupled between the inner and outer rims to provide a gas suspension for relative movement between the inner and outer rims. The wheel assembly may also include tread assemblies carried by the outer rim. Fastener assemblies may be configured to perform fastening at least one tread assembly to the outer rim, fastening each gas spring to the outer rim, or fastening each gas spring to the outer rim. Each fastener assembly may include a fastener, and a pair of indicator-lock washers carried by the fastener. Each indicator-lock washer may have respective sloped surfaces slidably engaging one another to permit relative rotation so that loosening from a fully tightened position exposes a gap therebetween.

The application relates to a deformable wheel with non-pneumatic load bearing intended to equip a vehicle for rolling under extreme conditions such as those encountered on the Moon and on Mars, comprising a hub, an annular tread intended to be in contact with the soil, positioned around the hub which is concentric therewith and comprising a layer of composite material coated with at least one protective layer, and a plurality of metal cables whose outer diameter is comprised between 0.2 mm and 5 mm, each cable connecting the hub to the tread while being fixed, on the one hand by an external end to the tread, and on the other hand by an internal end to the hub by an elastic member making it possible to modulate the radial stiffness of the cables, each elastic member being associated with an abutment able to limit its deformation.

A toy car tire includes a tire main body and a filler core. The tire main body includes an inner cavity and a first opening. The inner cavity is surrounded and formed by a side wall of the tire main body, and the first opening is in communication with the inner cavity. The filler core is inserted into the inner cavity through the first opening. The filler core is configured for filling the inner cavity. Therefore, the filler core is capable of filling the inner cavity of the tire main body to support the tire main body, making the tire main body fuller and less prone to deformation. Moreover, compared with an inflatable tire, since the inner cavity is filled with the filler core, the toy car tire is not afraid of being punctured. Even if punctured, the tire main body of the tire is still full.

A non-pneumatic tire includes a lower ring having a first diameter and an upper ring having a second diameter. The upper ring is substantially coaxial with the lower ring. A support structure connects the lower ring to the upper ring. The support structure is made up of a plurality of spokes. The support structure is arranged and configured so that adjacent spokes of the plurality of spokes contact one another upon the occurrence of a high impact event.

Shape memory alloy elements (“SMAs”) are bonded, encased, or encapsulated with one or more polymers to form an integrated component with unique elastic, pseudoelastic, and load-bearing properties.

A non-pneumatic and method of making a non-pneumatic tire. The non-pneumatic tire includes a lower ring having a first diameter and an upper ring having a second diameter greater than the first diameter. The upper ring is substantially coaxial with the lower ring. A support structure extends between the lower ring and the upper ring. The support structure includes a first face and a second face opposite the first face, a first axial edge and a second axial edge. The first and second axial edges space the first face from the second face. At least one of the first edge and the second edge may have a geometry that provides the support structure with a nonrectangular cross section. At least one of the first face and the second face may have a surface roughness of less than 25 microns. The support structure may be free from orthogonal axial edges.

A non-pneumatic tire includes an annular inner ring, an annular outer ring, and a support structure extending from the annular inner ring to the annular outer ring. The support structure includes a plurality of spokes, webbing, cells, or other open-sided support structure. The tire includes a bump stop. The bump stop includes an inner member radially extending from a radially outer surface of the annular inner ring. The inner member has a radially outer surface facing a radially inner surface of the annular outer ring. The bump stop includes an outer member radially extending from a radially inner surface of the annular outer ring. The outer member has a radially inner surface facing a radially outer surface of the annular inner ring.

A deformable wheel with non-pneumatic load bearing intended to equip a vehicle for rolling under extreme conditions such as those encountered on the moon and on Mars, includes a hub, a laminated annular strip including a plurality of concentric ferrules which are assembled with the interposition of interposing layers each composed of a material whose Young's modulus is 600,000 to 1,000 times lower than that of the ferrules, and a plurality of metal cables. Each cable connects the hub to the laminated strip while being fixed, on the one hand by an external end to the laminated strip, and on the other hand by an internal end to the hub by means of an elastic member making it possible to modulate the radial stiffness of the cables. Each elastic member is associated with an abutment able to limit its deformation.

A phase transformational cellular material, including a plurality of bistable cells, each respective bistable cell operationally connected to at least one other respective bistable cell. Each bistable cell enjoys a first stable phase and a second stable phase. The first stable phase is a first geometric configuration and the second stable phase is a second geometric configuration different from the first geometric configuration. An energy transaction is required to shift each respective cell between stable phases. A mechanical energy transaction is required to shift from the first to the second phase, while a thermal energy transaction is required to shift from the second to the first phase.

A spoke (12) for a non-pneumatic tire (10) is provided that has a nose (28) that engages a first panel (16) and a second panel (18). A first foot (20) is carried by the first panel and has a first foot first concave surface (46) and an adhesion deflector (48). A second foot (22) is present and is carried by the second panel. A reinforcement layer (24) engages the first foot first concave surface and the adhesion deflector.

A tubeless tire insert comprising: an annular body having shock absorbing characteristics; a positioning system configured to vary a mean inner diameter of the insert, wherein the insert has a mean inner diameter X when the tire is being installed on the rim; and the insert has a mean inner diameter Y when the tire is installed on the rim, where X is greater than Y.

The invention is directed to a non-pneumatic tire with a supporting structure comprising a radially inner annular portion, a radially outer annular portion, and a plurality of spokes extending between these portions along a circumferential direction of the tire. In one aspect, two circumferentially neighboring spokes are interconnected by a winding comprising a cord wound in multiple loops through the neighboring spokes, and the radially inner annular portion comprises circumferentially extending cords. In some aspects, the spokes have, from spoke to spoke, alternating angles with the axial direction along a circumferential direction of the tire. In another aspect, said radially inner annular portion comprises one or more of axially extending recesses and protrusions on a radially inner surface of the radially inner annular portion. Furthermore, the present invention is directed to a tire rim assembly comprising such a non-pneumatic tire and a corresponding rim.

The utility model discloses a spoke of a non-pneumatic tire and a wheel comprising the same. The spoke of the non-pneumatic tire comprises a spoke body, the spoke body is an elastic piece and is provided with a plurality of through holes, and the through holes are distributed around the central axis of the spoke body in a circumferential array mode. A plurality of groups of through holes are formed, and the diameters of the through holes in each group are gradually increased in the radial direction of the spoke body from inside to outside; wherein two adjacent groups of through holes are arranged in a staggered manner and form a negative Poisson's ratio structure, and walls with equal or similar wall thicknesses are arranged between any two through holes. The inner diameters of the through holes are gradually increased from the inner side of the spoke body to the outer side of the spoke body, the wall thicknesses of the through holes are adjusted by arranging the adjacent two sets of through holes in a staggered mode, it is guaranteed that the wall thicknesses of all positions are equal or similar while the spoke forms an overall negative Poisson's ratio elastic structure, and therefore the stress concentration degree when the spoke is pressed is reduced, and the service life of the spoke is prolonged. Therefore, the loading capacity of the spoke is improved, the service life of the spoke is prolonged, and the requirement for shock absorption of the wheel is met.

This application provides a dual overrunning clutch decoupled adaptive stiffness pneumatic tire, including a wheel body structure, a main drive system, and a stiffness adjustment system. The wheel body structure includes a hub structure nested within the wheel body. The wheel body has at least one circumferentially extending annular channel, which includes circumferentially staggered pressure-bearing areas and non-pressure-bearing areas. The hub structure includes several hub units nested within the channel and evenly spaced circumferentially, each hub unit being able to slide independently along the channel. The main drive system includes a first bidirectional overrunning clutch for driving the hub structure and wheel body to rotate synchronously. The stiffness adjustment system includes a second bidirectional overrunning clutch for driving the hub structure to rotate relative to the wheel body. When there is a difference in the speeds of the two wheels, the second clutch engages; when the speeds are equal, it overruns. The differential rotation of the hub structure drives the hub units to slide, changing their contact state with the pressure-bearing areas, thereby achieving real-time adaptive stiffness adjustment during driving, pneumatic tire-free wear resistance, and low energy consumption for all road conditions.

A multi-segment support (10) of a non-pneumatic tire, comprising at least three leg portions (11) connected in sequence and nose portions (12) correspondingly connected between any two adjacent leg portions (11). Each leg portion (11) comprises a framework (1101) and a connecting portion (1102) connected to the framework (1101), and the connecting portion (1102) and the nose portions (12) are both made of a polymer elastic material and are fixedly connected to each other. Since each leg portion (11) comprises the framework (1101), and the framework (1101) provides an effect of supporting and has a lower deformation capability than the elastic material, the amount of the elastic material used of the leg portion (11) can be reduced, and the use of the elastic material at a deformed and stressed portion can be avoided, thereby significantly reducing a rolling resistance. In addition, the nose portions (12) made of polymer elastic materials enable the multi-segment support (10) to have a deformation capability when subjected to a force, can serve as a movable joint connecting two adjacent leg portions (11), and provide effects of buffering and shock absorption. In addition, the connecting portions (1102) and the nose portions (12) are made of polymer elastic materials and are fixedly connected to each other, such that each leg portion (11) and each nose portion (12) can be connected and combined as one piece. Further disclosed is a non-pneumatic tire comprising the multi-segment support.

The utility model relates to a mobile device which comprises a machine body and a wheel connected with the machine body to drive the machine body to move, and the wheel comprises a hub component configured to rotate along with a wheel shaft; the tire body component is detachably connected to the hub component, the tire body component comprises a mounting part and a tire skin connected with the mounting part, and when the hub component is mounted on the fuselage, the tire body component can be detached or connected to the hub component. By arranging the mounting piece, the tire body component and the hub component are detachably connected, when the tire body component is damaged, only the damaged tire body component needs to be replaced, the whole wheel does not need to be replaced, resources and cost are saved, waste is reduced, when the wheel is arranged on a machine body, the tire body component can be disassembled, and disassembling and assembling are faster.

The invention relates to a wheel comprising: an axis of rotation; a hub; a rim; a first spoke; a second spoke, the second spoke comprising: an inner section; an outer section; and an intermediate section; a third spoke, the third spoke comprising: an inner section; an outer section; and an intermediate section wherein the intermediate section of the third spoke and the intermediate section of the second spoke are concave relative to each other when the wheel is not deformed; a first distance defined between a first portion of the inner section of the second spoke and a second portion of the inner section of the third spoke; and a second distance extending between a third portion of the outer section of the second spoke and a fourth portion of the outer section of the third spoke; wherein the first distance is smaller than the second distance; and wherein during a load of the wheel is sufficient to cause deformation of the wheel, when the wheel is deformed by a first amount, the first spoke engages the second spoke such that the engagement resists further deformation of the wheel.

A wheel assembly for a vehicle includes an inner rim (1031) to be coupled to the vehicle, and an outer rim (1033) surrounding the inner rim. The wheel assembly further includes gas springs (1050) operatively coupled between the inner rim and the outer rim to provide relative movement between the inner rim and the outer rim. A ballistic armor cover plate (1080) extends between the outer and inner rim on an outboard side of the wheel assembly to protectively cover the gas springs.

The invention discloses a light-weight wheel and a non-inflatable wheel assembly, and belongs to the technical field of tires, and the light-weight wheel comprises a connecting disc and a plurality of spoke pieces. The spoke pieces with the spoke parts and the supporting parts are evenly distributed on the inner side of the connecting disc in the circumferential direction with the center of the connecting disc as the circle center, the supporting parts are distributed in the circumferential direction to form the rim, the spoke parts are fixed to the connecting disc in the radial direction of the rim in the fan shape, and the supporting strength of the wheel is guaranteed. The first lightening holes are formed in the spoke part, so that the weight of the wheel is reduced, materials are reduced, the spoke piece has the spoke function and can form a rim, and therefore the types of accessories can be reduced, the machining difficulty of the wheel is lowered, and the machining efficiency is improved; therefore, the small-batch development and processing mode of the wheels can be simplified, the research and development cost is reduced, and expensive large-size molds are not needed for large-batch production of the wheels, so that the mold development difficulty, the manufacturing cost and the manufacturing period during large-batch production can be simplified.

The invention discloses a tire and a process, which are characterized in that during molding, each component of a framework is coated with glue independently, then the tire is molded by assembling each component, a certain gap exists between adjacent support bodies of the assembled tire, the tire is of a radiation structure, and the tire structure and the molding process greatly improve the production efficiency. The tire is suitable for various types of pneumatic tires, non-pneumatic tires and retreaded tires, including car tires, truck and passenger car tires, engineering tires, giant tires, special tires and the like, and is particularly suitable for engineering tires and giant tires which are relatively slow in speed and relatively high in load in high-temperature and low-temperature environments.

The invention relates to a deformable wheel (2) with non-pneumatic load bearing intended to equip a vehicle for driving under extreme conditions, such as those encountered on the moon and Mars, comprising: a hub (4), an annular tread (6) intended to come into contact with the soil, and a plurality of metal cables (8), the invention relates to a pneumatic tire comprising a hub (4), an annular tread arranged around the hub concentric therewith and comprising a layer of composite material coated with at least one protective layer, a plurality of metal cables having an outer diameter of between 0.2 mm and 5 mm, each cable connecting the hub (4) to the tread, each cable being fixed to the tread by an outer end (8a), and each cable being fixed to the tread by an outer end (8b). On the other hand, the cable is fixed to the hub by means of an inner end (8b) by means of an elastic member (18) capable of adjusting the radial stiffness of the cables, each elastic member being associated with a stop surface (12, 14) capable of limiting its deformation.

The present invention provides a non-pneumatic tire that can maintain adhesion between the resin skeletal member and the rubber tread member even after retreading. [Solution] A non-pneumatic tire 100 comprising an inner cylinder 6 fitted onto a wheel 2, an outer cylinder 4 surrounding the inner cylinder 6 from the outside in the tire radial direction, a connecting member 3 connecting the inner cylinder 6 and the outer cylinder 4, and a tread member 5 provided on the outer side of the outer cylinder 4 in the tire radial direction, wherein the inner cylinder 6, the outer cylinder 4 and the connecting member 3 are made of a resin composition containing at least one selected from polyester thermoplastic resin and polyester thermoplastic elastomer, the tread member 5 includes two or more rubber layers 51, 52, the rubber layer 51 in contact with the outer cylinder 4 is not chlorinated, and the rubber component of the rubber layer 51 in contact with the outer cylinder 4 contains 50% by mass or more of isoprene skeleton rubber.

The utility model discloses a combined type high leakproofness pneumatic tire union which comprises a hub, a protection assembly is arranged on the hub, the protection assembly comprises installation holes, a soft metal pad, a tire, anti-skidding grains and an air inlet pipe, the installation holes are evenly formed in the hub, the soft metal pad is connected to the outer side of the hub in a sleeved mode, and the anti-skidding grains are arranged on the outer side of the tire. The tire is connected to the outer side of the soft metal pad in a sleeving mode, the anti-skid lines are arranged on the tire, the air inlet pipe is installed on the inner side of the tire and penetrates through the hub, an air blocking assembly is arranged at one end of the air inlet pipe and comprises an installation pipe, a threaded pipe and a fixing frame, the installation pipe is arranged on one side of the air inlet pipe, and the threaded pipe is arranged on the other side of the air inlet pipe. The threaded pipe is in threaded connection with the installation pipe, and the fixing frame is installed on the inner side of the threaded pipe so as to solve the technical problem that in the background technology, an existing pneumatic tire union lacks a flexible sealing process in the aspect of the protection function.

The present teachings generally provide for an overrunable test vehicle for dynamic vehicle testing of advanced driver assistant systems along a driving plane. The overrunable test vehicle comprising a chassis with a first end and a second end and including a mounting area configured to receive a soft target, and defining an axis of rotation transverse to the driving plane between the first end and the second end, four drive mechanisms coupled with the chassis, each drive mechanism having an electric motor with a drive wheel, and a control system coupled with the electric motors, and configured to control speed and torque of each of the electric motors, forming a torque vector that rotates the overrunable test vehicle about the axis of rotation to a target rotation angle. The axis of rotation is a location between the two drive mechanisms that the chassis turns about when the torque vector is applied to the chassis of the overrunable test vehicle.