342results about "Road vehicle tyres" patented technology

A pneumatic tire includes: a main groove extending in a tire circumferential direction disposed on a shoulder region of a tread portion; lug grooves extending from the main groove toward an outer side and reaching a side wall portion; and blocks demarcated by the main groove and lug grooves. An edge on an innermost side in a tire radial direction of the blocks is positioned more on an outer side in the tire radial direction than a tire maximum width position, and a ratio of an orthogonal distance from a ground contact end position to the edge on an innermost side in the tire radial direction of the blocks is 0.2 or more. Recessed portions each having a closed periphery are provided in a side region more on an outer side in a tire width direction than the ground contact end of the blocks.

The invention provides a pneumatic tire for evenly improving endurance quality, off-road performance and cut resistance of a tire bead part. The pneumatic tire comprises a sidewall portion provided in its radially outer region B with side protectors protruding axially outwardly from the outer surface Ba of the radially outer region B. The side protectors are arranged in the tire circumferential direction at intervals so that grooved portions are formed between the side protectors. The width W1 in the tire circumferential direction of the grooved portion is in a range of from 50% to 70% of the width W2 in the tire circumferential direction of the side protector when measured at the same radial position.

The invention discloses a non-pneumatic tire based on an inner sunken hexagonal negative poisson ratio support structure. The non-pneumatic tire includes a tread, a tire body and a negative poisson ratio support structure which are arranged in the radial direction from outside to inside; the inside of the tread is cemented with the outside of the tire body as a whole, and the tire body is a polyurethane foam material with a negative poisson ratio characteristic; the negative poisson ratio support structure includes an outer reinforcing ring, an inner reinforcing ring, and a negative poisson ratio multi-cell support connecting the inner reinforcing ring and the outer reinforcing ring; and the multi-cell support is formed by a plurality of concentric ring-shaped inner sunken hexagonal unit cell structures connected to each other by connecting cell arms, wherein each of the inner sunken hexagonal unit cell structures is formed by orthogonal nesting of a pair of inner sunken hexagonal unitstructures. According to the non-pneumatic tire based on the inner sunken hexagonal negative poisson ratio support structure, by combining negative poisson ratio porous materials and multi-cell structures, the non-pneumatic tire is provided with negative poisson ratio and rigidity and strength load enhancement characteristics both in the radial and axial directions, and the carrying capacity andthe lateral stability of the non-pneumatic tire are effectively improved.

The present invention provides a tire which suppresses the descent of the ice and snow road performance and effectively improves the handling stability performance. The tire (1) is designated as the direction of installation of the vehicle. The tread portion (2) includes an outer shoulder land portion (5A) and an inner shoulder land portion (5B). The outer shoulder land portion (5A) is provided with a first outer shoulder saddle (8) that is terminated in the outer shoulder land portion (5A) and an outer shoulder cross groove (10) that is terminated in the outer shoulder land portion (5A). The inner shoulder land portion (5B) is provided with a first inner shoulder saddle (15) communicated with an inner shoulder main groove (3B), an inner sholder cross groove (17) that is terminated int the inner shoulder land portion (5B), and a connecting saddle (18) connecting the tire axial inner end (17e) of the inner sholder cross groove (17) and the inner shoulder main groove (3B).

The invention relates to a pneumatic radial tire for use on a passenger vehicle. The purpose of the present invention is to improve wet performance and rolling resistance performance in a radial tire of low width and high diameter. When the tire is assembled on a rim and the internal pressure is 250 kPa or greater, the ratio (SW / OD) between the tire cross-sectional width (SW) and the outside diameter (OD) (mm) is 0.26 or less when the tire cross-sectional width (SW) is less than 165 (mm), the tire cross-sectional width (SW) and the outside diameter (OD) (mm) satisfy the relational expression 2.135 X SW + 282.3 <= OD when the tire cross-sectional width (SW) is 165 (mm) or greater, the tread rubber has a dynamic storage modulus (E') at 30 DEG C of 6.0 to 12.0 MPa and a loss tangent (tan[delta]) at 60 DEG C of 0.05 to 0.15, and when the tread surface is equally divided into four areas in the tire width direction, the two inward areas in the tire width direction being center parts and the two outward areas in the tire width direction being shoulder parts, shoulder circumferential sipes that extend in the tire circumferential direction are located in the shoulder parts.

The invention discloses a large tire changer which mainly comprises a disassembly device, a transverse transmission gear and a longitudinal support device and particularly comprises a disassembly arm pulley, a disassembly arm, a transverse vehicle, a motor, a base, a rotary guide rail oil cylinder, a rotary guide rail beam, a transverse cylinder and the like. The rotary guide rail beam is hinged to two ends of the base, the rotary guide rail oil cylinder is fixed to the left of the rotary guide rail beam, the disassembly arm pulley is mounted on the left of the rotary guide rail beam, the transverse cylinder is mounted on the rotary guide rail beam, a sprocket shaft fixing component is connected with a rotary arm, a chain fixing component on a disassembly arm vehicle is connected with the disassembly arm pulley, the transverse vehicle is mounted on the rotary guide rail beam and is connected with a longitudinal guide rail, a worm gear case pulley is mounted on the longitudinal guide rail, the transverse vehicle is connected with a longitudinal cylinder barrel, a longitudinal cylinder shaft is connected with the worm gear case pulley, and a cross head is mounted on a main cylinder shaft. The large tire changer has the advantages that the large tire changer is reasonable in design and simple in structure, can bring convenience for disassembling tires and is applied to the field of technologies for disassembling large tires, use of disassembly materials can be reduced, and the work efficiency can be improved.

The invention discloses a groove wall structure of a tread pattern of a pneumatic tire. The tire tread is composed of a plurality of pattern block groups, and each pattern block group includes a central pattern block and shoulder pattern blocks located on both sides of the central pattern block. Pattern grooves are formed between the pattern blocks, wherein the two side walls of each pattern groove are provided with stepped three-dimensional groove walls along the groove length direction, and the three-dimensional groove walls on the two side walls are arranged oppositely. The present invention ensures the wet performance of the tire by providing pattern grooves on the tire tread, and the two side walls of the pattern grooves are provided with stepped three-dimensional groove walls along the groove length direction, and the steps of the three-dimensional groove walls on the two side walls The shape is set in the opposite direction, which increases the edge effect of the groove wall of the pattern block and further improves the grip of the tire; while the "ladder shape" formed by the multi-level three-dimensional groove wall extending from the tire tread to the bottom of the groove, wears out with the use of the tire. The pattern block area also increases accordingly, which increases the rigidity of the pattern block and further improves the wear resistance of the tire in the later period of use.

The invention discloses an automobile and a tire pressure monitoring method thereof. The automobile comprises a plurality of wheels and a plurality of motors, and the motors correspondingly drive thewheels. The method comprises the following steps: when the state of the automobile meets a preset state, separately acquiring rotating speeds of the motors; and judging whether the tire pressures of the wheels are normal or not according to the rotating speeds of the motors. Therefore, a tire pressure sensor is not required, hardware cost for the tire pressure sensor is saved, and later change orrepair costs are also saved.

The invention discloses an automatic inflation and deflation system for vehicle tires. The automatic inflation and deflation system comprises a tire pressure monitoring device, an air pressure supercharging device, a control valve, a distribution valve, a control device and a plurality of connection pipes, wherein the tire pressure monitoring device is used for monitoring tire information of a vehicle and sending the tire information to the control device; when pressure in a tire is insufficient, the control device controls the air pressure supercharging device to be turned on, controls a first work position of the control valve to be conducted, and also controls a valve of the distribution valve corresponding to the tire with insufficient air pressure to be opened for inflation; when the tire pressure is too high, the control device controls the air pressure supercharging device to be turned off, controls a second work position of the control valve to be conducted, and also controls the valve of the distribution valve corresponding to the tire with excessive air pressure to be opened for deflation. The automatic inflation and deflation system for vehicle tires can conveniently and rapidly complete automatic inflation and deflation of tires; the invention further relates to an automatic inflation and deflation method for vehicle tires.

The invention provides an inflation-free tire. The inflation-free tire sequentially comprises a rubber tire tread with patterns which have low rolling resistance and high grip strength, base rubber which is vulcanized into a whole with the rubber tire tread and an elastic support body achieving a support effect on the rubber tire tread from outside to inside in the radial direction of the tire. The inflation-free tire is characterized in that the elastic support body comprises an inner pressure bearing ring making contact with a rim, an outer pressure bearing ring attached to the base rubber and a middle support body located between the inner pressure bearing ring and the outer pressure bearing ring; first axial through holes are formed in a circumferential ring body of the outer pressure bearing ring, the axial section of each first axial through hole is shaped like one of a circle, an arch-shaped arc, an ellipse and a polygon of which the side number is larger than or equal to 6, and the first axial through holes are uniformly distributed in the circumference direction, so that a vehicle wheel axle uniformly transmits a load to the ground in a discretized mode through the first axial through holes of the elastic support body, grounding prints of which pressure is uniformly distributed are obtained, and the grounding property and the bearing property of the tire are improved.

The invention discloses a tire safety detection system, and belongs to the field of automotive safety systems. The tire safety detection system comprises a wireless network sensor node and a network coordinator; the wireless network sensor node comprises an auxiliary microcontroller, a plurality of sensors and a radio frequency transmitter, wherein the sensors are connected with the auxiliary microcontroller, and the auxiliary microcontroller is connected with the radio frequency transmitter; the network coordinator comprises a main microcontroller, a bus interface module, a voice output module, a liquid-crystal display module and a radio frequency receiver, wherein the bus interface module, the voice output module and the liquid-crystal display module are respectively connected with the main microcontroller, and the main microcontroller is connected with the radio frequency receiver. According to the invention, the tire safety detection system uses a wireless communication technology, so that the cost and the power consumption of the system are greatly reduced, and the functions of monitoring the tire internal state in real time and carrying out abnormity alarming are realized.

A semi-pneumatic tire includes a tread portion configured to make contact with a road surface, a non-pneumatic portion coupled to an inner circumferential surface of the tread portion. The semi-pneumatic tire further includes a pneumatic portion coupled to an inner circumferential surface of the non-pneumatic portion and provided with a space into which an air is filled, and bonding layers respectively interposed between the tread portion and the non-pneumatic portion and between the non-pneumatic portion and the pneumatic portion. The non-pneumatic portion includes a band portion including aninner band coupled to an outer circumferential surface of the pneumatic portion and an outer band spaced apart from the inner band and surrounding an outer circumferential surface of the inner band,and spokes provided between the inner band and the outer band to connect the inner band and the outer band.

The invention relates to a device and method for anti-stuck and off-stuck of automobile tires. The device for anti-stuck and off-stuck of the automobile tires comprises a hub fixing device, a telescopic device and a pressing plate. The hub fixing device comprises a fixing frame, a stopping block and a rubber cushion; a longitudinal adjusting hole is formed in the middle of the fixing frame and fixed to a bolt hole of an outer rod through a bolt group in a matched mode; transverse adjusting holes are formed in the two ends of the fixing frame, the stopping block is fixed in the adjusting holes through the bolt group, and a stopping column is arranged on the stopping block; the telescopic device comprises the outer rod and an inner rod; the up, down, left and right directions of the outer rod are restrained through the hub fixing device, and the outer rod is fixed to a hub in a clamped mode; the hub and the outer rod are twined and fastened together through a pasting cloth tape; round holes in the inner rod and the outer rod are assembled and fixed by the inner rod through the bolt group, so that the inner rod is placed in a track arranged on the outer rod; and the pressing plate is installed at the outer end of the inner rod through bolts. The device for anti-stuck and off-stuck of the automobile tires is suitable for most automobiles with the hub, simple in structure, and convenient to install and carry, and the device for anti-stuck and off-stuck of the automobile tires has the scalability.

In a pneumatic tire, a sipe formed in a land portion includes a first large width portion having a larger groove width than an opening end formed on a surface of a tread, a neck portion having a smaller groove width than the first large width portion, and a second large width portion having a larger groove width than the neck portion which are disposed in this order on a depth side in a sipe depth direction.

The invention discloses an air-free tire and an automobile. The air-free tire comprises a rubber tread and a wheel arm. The wheel arm is sleeved with the rubber tread and comprises an outer wheel arm ring, a middle wheel arm ring and an inner wheel arm ring. The outer wheel arm ring is fixedly connected with the middle wheel arm ring through outer spokes. The middle wheel arm ring is fixedly connected with the inner wheel arm ring through inner spokes. Recessed portions are formed in the two sides of the wheel arm and formed in the outer spokes, the middle wheel arm ring and the inner spokes. The automobile comprises the above air-free tire. The tire can be prevented from bursting in the high-speed traveling process of the automobile, and the automobile traveling safety and reliability are improved; the radial elastic performance and buffering capacity of the air-free tire are improved, and the steadiness of the automobile in the traveling process is improved; and the hardness of a tire shoulder can be effectively reduced, and the problem of abnormal wear is solved.

The invention provides a tire monitoring rescuing method. The method comprises the following steps: collecting, by a car-mounted sensor, tire data, transmitting a signal, transmitting, by the car-mounted sensor, the collected tire data to a data collector, and transmitting, by the data collector, the collected data to a client by virtue of Bluetooth; storing and receiving, by a background server, the data, transmitting, by the client, the tire data and the location information of the client to the background server, transmitting location information of a rescuing terminal to the background server, and storing, by the background server, the received data of the client and the rescuing terminal; and adopting a smart phone of an Android or compatible system as a user display terminal device, wherein an APP application having a data parsing function and a network interaction function is installed in the device to realize functions of displaying the data, alarming for abnormal situations, calling, inquiring relevant information and the like.

The invention provides a tire. The tire comprises a tire tread and a plurality of tire tread main channel groups which are uniformly arranged on the tire tread along the peripheral direction of the tire; each tire tread main channel group comprises a first transverse channel, a second transverse channel, a third transverse channel, a fourth transverse channel, a fifth transverse channel, a sixth transverse channel, a first central channel and a second central channel; each first central channel is composed of a first branch channel, a second branch channel and a third branch channel; and each second central channel is composed of a fourth branch channel, a fifth branch channel and a sixth branch channel. By setting the plurality of tire tread main channel groups, the plurality of first central channels and second central channels, which are alternately arrayed, are arranged at the central line of the tire tread; the first central channels and the second central channels are independently sealed to form snowfield anti-slipping patterns, so that the snow occlusion property of the tire is improved; and furthermore, the snowfield manipulation property and the braking property of the tire in winter are improved.

The present invention relates to an apparatus and a method for monitoring a tire pressure considering a low pressure situation. Provided is a tire pressure monitoring apparatus considering a low pressure situation including: a radius analyzing unit which calculates a radius analysis value using a relative velocity difference and an average velocity calculated from wheel velocities of the wheels mounted on the vehicle; a critical value setting unit which compares the calculated radius analysis value with a predetermined determination reference value and sets different critical values in accordance with the comparison result; and a low pressure determining unit which determines a low pressure of a tire mounted on a vehicle using the set critical value.

The invention particularly relates to a tire safety monitoring device which comprises a light source assembly horizontally arranged in the vehicle running direction. Light emitted by the light source assembly is perpendicular to the tire center line and a tire section in the vertical direction, and the light is irradiated to a development assembly after passing a longitudinal groove of a tire. The development assembly comprises a first light-sensitive pressing plate, after the first light-sensitive pressing plate is irradiated by the light, the section shape of the longitudinal groove of the tire is output to a processor, and the processor draws the section shape of the longitudinal groove of the tire into a three-dimensional model of the tire. The process is connected with a display device. A metal detector is arranged nearby a tire shoulder on one side of the tire, and a metal receiver is arranged nearby a tire shoulder on the other side of the tire. When a large stone or nail or other sundries are stuck into pattern grooves, a driver can be reminded to handle the sundries in time, and safety of the tire in the vehicle running process is greatly improved.

The invention discloses an intelligent tire which comprises a tire body, a sheet-shaped conductive polymer sensor, a micro-control unit, an RF unit, an upper position host and an RF circuit. The sheet-shaped conductive polymer sensor is adhered on a liner layer in a crown; one end of the sheet-shaped conductive polymer sensor is connected with the micro-control unit through the RF unit, and the other end of the sheet-shaped conductive polymer sensor is connected with the upper position host through the RF circuit; a processor is electrically connected with a power supply module; the processor is connected with a display screen and a sound alarm in a control mode; and a communication end port and the processor are mutually connected. The intelligent tire is mainly designed for early warning of hazardous use working conditions, the tire state can be comprehensively judged through the amplitude of crown strain and the operating temperature and combination with the fitting function, and the single conductive polymer sensor can further be used to obtain the amplitude of strain and the operating temperature simultaneously, early warning of multiple kinds of hazardous working conditions of the tire can be realized, and the sheet-shaped conductive polymer sensor is low in cost and suitable for being popularized.

The invention discloses an automobile tire removing device. The automobile tire removing device comprises a main body and universal wheels; a pull handle, cylindrical guide rails, a lifting frame and semicircular clips are arranged on the main body; the pull handle is arranged at the front end of the main body; a cranking bar is arranged at the middle part above the pull handle; the cylindrical guide rails are arranged on two sides of the front end of the main body; the lifting frame is arranged above the main body; the lifting frame sleeves the cylindrical guide rails; a transmission nut and a double-way screw are arranged on the lifting frame; the transmission nut is arranged in the middle of the bottom of the lifting frame; a transmission screw is arranged in the transmission nut in a threading manner; the transmission screw is connected with the cranking bar through a bevel gear group; the double-way screw is transversely arranged above the lifting frame in a threading manner; the right end of the double-way screw is provided with a transverse cranking bar; the semicircular clips sleeve two sides of the double-way screw through transmission nuts; and the universal wheels are arranged at the bottom of the main body. The automobile tire removing device has the advantages that automobile tires can be easily removed, time and labor can be saved and the working efficiency can be also increased.

A tire comprises a tread portion 2 comprising at least a first main groove 3 and a second main groove 4 extending continuously in a tire circumferential direction. The first main groove 3 comprises a first oblique portion 11 inclined with respect to the tire circumferential direction and a second oblique portion 12 connected with the first oblique portion and inclined in an opposite direction to the first oblique portion 11. The second main groove 4 comprises a third oblique portion 13 inclined in a same direction as the first oblique portion 11 with respect to the tire circumferential direction, a fourth oblique portion 14 inclined in an opposite direction to the third oblique portion 13, and a longitudinal groove portion 15 disposed between the third and fourth oblique portions 13 and 14 so that they are not directly connected and extending along the tire circumferential direction.

The purpose of the present invention is to provide a pneumatic radial tire for use on a passenger vehicle, the tire having a low width and a large diameter, wherein the tire has improved wet performance and rolling resistance performance. This pneumatic radial tire for use on a passenger vehicle is characterized in that, when the tire is assembled on a rim and the internal pressure is 250 kPa or greater: the ratio (SW / OD) between the tire cross-sectional width (SW) and the outside diameter (OD) (mm) is 0.26 or less when the tire cross-sectional width (SW) is less than 165 (mm); the tire cross-sectional width (SW) and the outside diameter (OD) (mm) satisfy the relational expression 2.135 * SW + 282.3 <= OD when the tire cross-sectional width (SW) is 165 (mm) or greater; the dynamic storage modulus (E') of the tread rubber at 30DEG C is 6.0 to 12.0 MPa; the loss tangent (tan[delta]) of the tread rubber at 60oC is 0.05 to 0.15; the dynamic storage modulus (E') of the buttress rubber at 30oC is 1 / 2 or less of the dynamic storage modulus (E') of the tread rubber; and the loss tangent (tan[delta]) of the buttress rubber at 60DEG C is 0.1 or less.

The invention discloses a TPMS (Tire Pressure Monitor System) management method. A TPMS comprises a TPMS sensor which is arranged in a vehicle tire. The TPMS management method comprises the following steps: sending a communication management data acquiring request, corresponding to the TPMS, to a server, wherein the server can feed back the communication management data corresponding to the TPMS while receiving the request; storing the communication management data corresponding to various TPMS in the server; and communicating with the TPMS sensor according to the received communication management data corresponding to the TPMS, so as to perform control management on the TPMS sensor. The invention also discloses a TPMS management device. With the adoption of the method and the device, the TPMS management efficiency can be improved.

A systematized multi-point sensors unit for a tire and a tire having the same are provided. More specifically, the systematized multi-point sensors unit includes: a sensor module composed of a plurality of sensors and attached onto an inner surface of a tire to monitor conditions of a tire and a road surface, and a connection member for connecting the plurality of sensors by wire, wherein the plurality of sensors are connected to each other by wire and arranged in a line in a manner of being perpendicular to a traveling direction of the tire.

The invention provides an aeration-free tire and belongs to the technical field of tires. The aeration-free tire has the advantages of structure stability, light weight and excellent crushing resistance. The aeration-free tire comprises a tread (1), a base rubber (2) and an elastic support (3) in turn from exterior to interior along the radial direction of the tire; a pattern can be arranged on the tread (1); the base rubber (2) is integrally vulcanized with the tread; the elastic support (3) has a function of supporting the tread; the elastic support (3) comprises an outer pressure-bearing ring (31), an inner pressure-bearing ring (34) and a middle support (32); the outer pressure-bearing ring (31) is glued with the base rubber (2); the inner pressure-bearing ring (34) is in contact with a rim (4); the middle support (32) is located between the outer pressure-bearing ring (31) and the middle support (32); the middle support (32) is composed of a plurality of pressure-bearing components (33) which are densely arrayed; each of the pressure-bearing components (33) is composed of a first bending component (331) and a second bending component (332) which have multiple sections of arcs and are symmetrically arranged along the axis on the radial direction.

The invention relates to a kerf-improved tire used for an automobile, since kerfs are formed according to a mode of an around 1mm small width, in practical driving, spacings become smaller and expected performances can not be well played. The kerf-improved tire is characterized in that, separators formed by protruding bars are formed on two inner walls of the kerfs in a mode of X-shaped crosses, during driver, the two wall surfaces of the kerfs are provided with spacings, preventing reduction of grip force of tires.

The invention provides a weatherable tyre tread pattern structure improving performance of damp road surfaces. Dissymmetry tyre tread pattern of the invention has a transverse slot (2) extending from inside continuously to outside, the width of the slot is wider, the transverse slot (2) is extended as far as inside tyre shoulder (5), so as to improve drainage performance and various performance of damp road surfaces. In addition, the transverse slot (2) of outside is formed to 2 / 3 (6) width of outside tyre tread to improve touchdown force, which inclines 20 to 50 degrees, tyre capable of attaining optimal steering performance and drainage performance at the same time.

The invention provides a vehicle tire pressure monitoring system based on LoRa and eMTC and a using method. The vehicle tire pressure monitoring system comprises a tire pressure monitoring intelligent sensor and an intelligent receiving display screen. The two low-power-consumption communication technologies of LoRa and eMTC are combined, a low-power-consumption microprocessor is adopted, accordingly, long-time power supply can be achieved by using a button battery or a small solar module, positioning can be achieved to obtain the vehicle position without adding a GPS module, and vehicle using safety is further improved. A tire temperature and pressure monitoring device is independent from a vehicle, and installation, use and maintenance are quite convenient; and monitoring data can be remotely transmitted to a remote cloud platform and stored, and historical data can be conveniently traced in the follow-up process. The hardware cost is low, and the external structure can be designed to be quite small.