299results 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 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.

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 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.

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.

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.

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 invention relates to the technical field of tires, and discloses a four-hole mechanical bionic buffer air cavity hollow tire and a preparation method thereof.The structure of the four-hole mechanical bionic buffer air cavity hollow tire comprises a tire body and a buffer air cavity, the buffer air cavity penetrates through the tire body in the axial direction, and the cross sectional area in the axial direction is kept consistent; comprising a first buffer air cavity, a second buffer air cavity, a third buffer air cavity and a fourth buffer air cavity which are in mechanical bionic patterns and are independently and uniformly distributed on the tire body at intervals to form a constant mechanical relationship, so that the hollow tire has the characteristics of light weight, high bearing capacity, good buffer performance and the like, the heat conduction area is large, the heat dissipation efficiency is high, and the service life of the tire is prolonged.

The non-inflatable wheel adopting the wave springs as the supporting bodies comprises an outer tire layer, the wave springs and a hub, the hub is located in the center of the wheel, clamping grooves are evenly distributed in the outer edge of the hub, the wave springs are arranged in the clamping grooves, meanwhile, the wave springs are evenly distributed in the circumferential direction, and the outer tire layer is arranged between the outer tire layer and the wave springs. And the outer tire layer is tightly sleeved on the outer side of the hub. The non-inflatable wheel provided by the utility model adopts the wave spring as a tire support body, the structure is compact, the material in unit volume has better axial rigidity, the radial bearing capacity is strong, the weight of the support body is lighter, and the stability and the reliability are obviously enhanced; when the whole wheel works, the outer tire layer transmits force to the wave spring serving as a supporting body, the wave spring buffers and absorbs shock through axial and radial elastic deformation so as to weaken vibration and impact transmitted to the hub, and the problems that a non-inflatable wheel is low in axial rigidity, poor in reliability and the like are solved.

An assembly (1) for a tire comprises: a first structure (10) formed by first cord elements (15), a second structure (12) formed by second cord elements (16), a bearing structure (14) comprising bearing cord elements (17) linking the first cord elements (15) to the first structure (10) and the second cord elements (16) of the second structure (12), and at least one cord securing element (18) fixed to the first cord elements (15) and to the second cord elements (16), said securing element (18) exhibiting an elongation at rupture at least equal to a minimum elongation greater than or equal to the ratio (A1) between a conformation height (h) of the assembly (1) and the sum of a thickness (e1) of the first structure (10), of a thickness (e2) of the second structure (12) and of a lock length (E).

The present invention provides an emergency wheel attachment (10) for a vehicle wheel (12), the emergency wheel attachment having a substantially annular mounting unit (18) used to attach the emergency wheel attachment to the vehicle wheel and an annular tread unit (20) that contacts the road in an operative state, the mounting unit having at least two retaining claws (22) designed to secure the mounting unit to the rim (14) of the vehicle wheel by engaging rearwardly of a rim flange (26), at least one retaining claw being radially movable to vary its distance from a center point of the mounting unit, the mounting unit having an annular operating element (46) that is rotatable about a rotation axis (A) coincident with the vehicle wheel axis in an operative state of the emergency wheel attachment, the annular operating element (46) rotatable about a rotation axis (A) that coincides with the vehicle wheel axis, the annular operating element (46) translating rotation of the operating element (46) into radial movement of the radially movable retaining claws, and the mounting unit (18) having a drive coupled or coupleable to the operating element (46).

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 comprised of a plurality of spokes. The support structure is arranged and configured such that adjacent spokes of the plurality of spokes contact one another upon occurrence of a high impact event.

The utility model provides a solid tire with high wear resistance, and belongs to the field of tires. The solid tire comprises a solid tire body and a supporting ring embedded in the solid tire body, an embedding cavity is formed in the supporting ring, the solid tire body partially extends into the embedding cavity, a plurality of through holes are formed in the supporting ring, studs penetrate through the through holes, the studs penetrate through the part, extending into the embedding cavity, of the solid tire body, and the embedded cavity is formed in the supporting ring. A circle of wear-resistant layer is arranged on the outer surface of the solid tire body, a wear-resistant structure is arranged on the outer surface of the wear-resistant layer, the solid tire body partially extends into the embedding cavity and is reinforced and fixed through studs, the connection stability of the solid tire is improved, and the wear resistance of the solid tire is improved through the wear-resistant structure.

A wheel device includes: a wheel member; a tire disposed on the outside of the wheel member, the tire comprising an inner layer, an outer layer, and a plurality of hollow pipes disposed between the inner layer and the outer layer, wherein an inner circumferential surface of the inner layer comprises grooves; a plurality of support members each having a circular arc shape; and a plurality of spoke members respectively connecting the wheel member to the plurality of support members. The plurality of spoke members are configured to move the plurality of support members between a first position and a second position. In the first position, each of the support members are disposed in the grooves. In the second position, each of the support members are disposed closer to a central axis of the tire than when the support members are in the first position.

A non-pneumatic tire, including a tread (10), an inner ring (20) and a plurality of groups of bulges (30). The plurality of groups of bulges (30) are radially distributed between the tread (10) and the inner ring (20), each group of bulges (30) is hollowed out inside, and adjacent groups of bulges (30) are integrally connected to form an annular cavity (40); a depression (50) is formed at a connection position of the adjacent groups of bulges (30), the depressions (50) form a tightening inner brim (41) corresponding to an inner wall of the annular cavity (40), a top contour of an inner wall of each group of bulges (30) correspondingly forms an expanding outer brim (42) of the annular cavity (40), and a bulge wall of each group of bulges (30) forms an arc-shaped extension surface (43) integrally connected between the tightening inner brim (41) and the expanding outer brim (42); and a tire wall (60) connected between the tread (10) and the inner ring (20) is formed between the tightening inner brims (41) of the annular cavities (40) and the tops of the outer walls of the bulges (30).

The present application relates to a kind of multi-foot coupling spoke and tire for non-pneumatic tire, spoke includes first leg structure, second leg structure and third leg structure, first leg structure and second leg structure are connected in V type, third leg structure is connected in V type with second leg structure, the end of third leg structure is equipped with first coupling surface, second coupling surface is equipped with in the opposite side surface of second leg structure with the side of third leg structure, first coupling surface can coincide with second coupling surface in translation process.The third leg structure of present application is arranged, and the third leg structure is coupled and connected with second leg structure, realizes circumferential coupling arrangement, substantially reduces the stress of originally bearing tension side, avoids interface and rubber body due to repeated tension and leads to the failure of adhesive surface, such as rubber fatigue tear phenomenon.The multi-foot coupling spoke improves the vertical stiffness of spoke, enhances the carrying capacity, further improves its carrying stability.

This suppresses deterioration of maneuverability and uneven wear in the shoulder portions of the tread members. [Solution] A non-pneumatic tire 1 comprises an inner cylinder, an outer cylinder 12 surrounding the inner cylinder from the outside in the tire radial direction, an elastically deformable connecting member 13 connecting the inner cylinder and the outer cylinder 12 to each other, and a tread member 14 provided on the outer circumferential surface of the outer cylinder 12, wherein the outer circumferential surface 14f of the tread member 14 has a curved shape that is convex outward in the tire radial direction when viewed in cross-sectional view in the tire width direction, and the curve is made up of a plurality of circular arcs AC1 to AC3 with different radii of curvature, and the radii of curvature R1 to R3 of the plurality of circular arcs AC1 to AC3 are smaller for the circular arcs on the outer circumferential surface 14f of the tread member 14 that are on the outside in the tire width direction.

The invention discloses a grass protecting wheel of a mowing robot, an outer-layer flexible wheel sleeve and the mowing robot, and the outer-layer flexible wheel sleeve is made of a flexible material and used for being arranged on the periphery of a tire of the mowing robot in a sleeving mode. The grass protection wheel comprises an inner-layer hard tire and an outer-layer flexible wheel sleeve, the inner-layer hard tire is connected with the hub or the driving shaft and provides structural support and torque output, the outer-layer flexible wheel sleeve is arranged on the periphery of the inner-layer hard tire in a sleeving mode and makes direct contact with a lawn, and structural support and torque transmission are guaranteed through the inner-layer hard tire. The outer-layer flexible wheel sleeve is made of a flexible material, has good buffering performance, can effectively absorb impact force, disperse pressure acting on the surface of a lawn and reduce impact and shear force on the lawn, so that lawn protection and terrain adaptability can be considered at the same time, lawn damage is reduced, and the service life of the lawn is prolonged. And the stability of the mowing robot walking on complex terrains is improved.

The invention relates to a vehicle tire which contains, at least in one tread (1), a vulcanizate obtained by sulfur vulcanization of a rubber compound, wherein one or more electrically conductive, radially extending rubber components (9) are arranged in the tread, extending radially outward to the outer surface of the tread (1) and radially inward to an electrically conductive inner rubber part of the vehicle tire. The rubber compound contains 25 to 100 phr of at least one butadiene rubber, wherein the butadiene rubber has a glass transition temperature Tg below -75 °C, and 20 to 70 phr of at least one silica compound, as well as carbon black as a filler.

A wheel assembly for a vehicle may include an inner rim to be coupled to the vehicle, and an outer rim surrounding the inner rim. The wheel assembly may further include gas springs 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 may extend between the outer and inner rim on an outboard side of the wheel assembly to protectively cover the gas springs.