239results about "Inflatable tyres" patented technology

Methods of performing a dispatched logistics operation for delivery / pickup of items using a modular autonomous bot apparatus assembly (with a modular autonomy module, cargo storage system, auxiliary power module, and mobility base) and a dispatch server. The modular autonomy control module receives a dispatch command from the dispatch server and authenticates that each of the modular components in the assembly are compatible with the particular dispatched logistics operation. The bot assembly receives the transported item, autonomously moves from an origin location to a destination per the dispatch command using the mobility base autonomously controlled by the modular autonomy control module, receives authentication input that at least correlates to authentication information in the dispatch comment to allow selective access to the modular cargo storage system of the bot assembly, and then autonomously returns to the origin after the item is detected removed from the cargo storage system.

The tire structure comprises a rim, an outer tire and a solid inner tire, a bead of the outer tire is in sealed connection with the rim, the solid inner tire is arranged in the outer tire, a groove is formed in the inner ring surface of the solid inner tire, and an air inlet channel communicated with an air inlet of the rim is formed between the groove and the rim; a plurality of grooves which are communicated with one another are densely distributed in the surface of the tread of the solid inner tube, and at least one sidewall of the solid inner tube is provided with at least one air passage which is communicated with the grooves and the grooves; when the tire is not inflated, the tread of the solid inner tire is in close fit with the inner wall of the outer tire; after inflation, buffer gas exists between the tread groove of the solid inner tube and the inner wall of the outer tube. Therefore, the solid inner tube is arranged in the outer tube, so that the use is safer and more reliable; meanwhile, after inflation, the air enters the grooves along the inflation air channels, buffering air is formed, the buffering and damping effects can be achieved, and the driving experience can be effectively improved.

Provide is a technology in which a pneumatic tire for use as an on-road driving wheel has the water discharge efficiency enhanced without impairing the traction performance. Also provided is a pneumatic tire (100) for use as a driving wheel, including a tread having a directional pattern containing a plurality of width-direction grooves (11) and (12). Assuming that a half-width region of the tread, as measured from the tire equator (CL) to the tread-to-ground contact end (TE) along the surface of the tire in a cross section of the tread portion (1) in the width direction of the tire, is bisected into two regions that are referred to as the tread center portion (Tc) and the tread shoulder portion (Ts) respectively in this order from the tire equator (CL), the plurality of width-direction grooves (11) and (12) extend across the tread center portion (Tc), and have a pattern convex in the rotational direction of the tire.

To provide a pneumatic tire that can improve wet handling stability while maintaining excellent dry handling stability.SOLUTION: In a pneumatic tire of which an installation direction to a vehicle is designated, at least one row of a plurality of land parts 20 formed on a tread part 1 is a convex rib in which a contour line of a tread in a tire meridian cross section projects to a tire radial direction outer side, and when a position of a ground contact end E on the contour line of the tread part 1 is represented by a point PA, a position at 5% of a nominal tire width W from the ground contact end E to a tire width direction inner side is represented by a point PB, and a position at 10% of the tire nominal tire width W from the ground contact end E to the tire width direction inner side is represented by a point PC, a curvature radius SRin of a circular arc passing three points of the point PA, the point PB, and the point PC inside a vehicle, and a curvature radius SRout of a circular arc passing three points of the point PA, the point PB, and the point PC outside the vehicle satisfy the relationship of 1.1≤SRout / SRin≤2.0.SELECTED DRAWING: Figure 1

The invention provides a pneumatic tire and a method for manufacturing the same, wherein the tire thickness of a tire shoulder part can be sufficiently ensured and the durability and the puncture sealing property of the tire can be both realized through the structure of a tire body. In a pneumatic tire in which a carcass layer (4) has a structure in which a bead core (5) of a bead section (3) is wound up from the inside to the outside of the tire, the end (4e) of a wound-up section (4B) of the carcass layer (4) is disposed further toward the inside in the width direction of the tire than the end (7e) of a belt layer (7), and a sealant layer (20) is formed on the inner surface (10) of the tire at a tread section (1). The end portion (20e) of the sealant layer (20) in the tire width direction is located at the shoulder portion and is disposed further toward the outside in the tire width direction than the tip end (4e) of the wound-up portion (4B) of the carcass layer (4).

To provide a pneumatic tire which sufficiently improves stability on a wet road surface at high speed traveling.SOLUTION: A pneumatic tire in which a circumferential direction main groove is arranged at a tread part is given. An outermost layer of the tread part consists of rubber composition containing vulcanized rubber powder. Area ratio S(%) of vulcanized rubber powder to the cross section of the outermost layer is 5% or more and 50% or less. Loss tangent (30°Ctanδ) is 0.15 or less in a condition of 30°C of temperature, 10 Hz of frequency, 5% of initial strain, and 1% of dynamic strain of the rubber composition, and it is measured at deformation mode of tension. Groove depth D (mm) of the circumferential direction main groove is more than 6 mm, and S / D>0.85 is satisfied.SELECTED DRAWING: None

Provided are a pneumatic tire and a method for manufacturing the same, which can suppress peeling of a sealant layer and improve tire balance. In a pneumatic tire including a tread portion 1 extending in the tire circumferential direction and having an annular shape, a pair of sidewall portions 2 disposed on both sides of the tread portion 1, and a pair of bead portions 3 disposed on the tire radial inner side of these sidewall portions 2, a sealant layer 20 having a structure in which a sealant strip 21 is spirally disposed along the tire circumferential direction on the tire inner surface 10 in the tread portion 1 is formed, and at least one end portion of the strip 21 is thinner than the other portion.

To provide a tire that can exert excellent on-snow performance, while maintaining steering stability on a dry road surface.SOLUTION: Each first crown sipe 41, each second crown sipe 42 and each third crown sipe 43 which are formed on a crown land part are opened on a tread surface 15s through chamfering surfaces 45. Each first crown sipe 41 and each third crown sipe 43 extend from a first vertical edge 15a and have terminating ends in the tread surface 15s. Each second crown sipe 42 extends from the second vertical edge 15b and has a terminating end in the tread surface 15s. A chamfer width of the chamfer parts 45 of each first crown sipe 41 and a chamfer width of the chamfer part 45 of each second crown sipe 42 are each constant in a sipe longitudinal direction. A chamfer width of the chamfer part 45 of each third crown sipe 43 become smaller continuously from the vertical edge toward the terminating end.SELECTED DRAWING: Figure 3

To provide a pneumatic tire which can easily reduce air resistance and easily increase vehicle's forward propulsion force.SOLUTION: A tire 1 includes: a tread 10 having a ground contact surface; a first rib 51a provided at an outer periphery side between a first ground contact end at a vehicle inner side of the tread 10 and a first maximum width position at the vehicle inner side; and a second rib 51b provided at an outer periphery side between a second ground contact end at a vehicle outer side of the tread 10 and a second maximum width position at the vehicle outer side. A first height Hi of the first rib 51a is higher than a second height Ho of the second rib 51b.SELECTED DRAWING: Figure 5

This tire offers excellent overall performance, including fuel efficiency during city driving and lane change performance during high-speed driving. [Solution] The present invention relates to a tire having a tread, wherein the tread is composed of a tire rubber composition containing a rubber component including styrene-butadiene rubber and an ionic coupling agent, and has a first land portion closest to the equator and a second land portion located outside the first land portion on the vehicle side of the tire's equator, and satisfies the following (1) to (3). (1) The amount of styrene in the styrene-butadiene rubber is 20% by mass or less. (2) When the width of the first land area is W1 and the width of the second land area is W2, W1 / W2 > 0.3 (3) Total amount of styrene in the rubber component / (W1 - W2 × 0.3) ≤ 1.5

A pneumatic vehicle tire which includes a sealant layer at least on the inner surface opposite the tread. The sealant layer has a radially inward-facing surface running in the axial direction substantially parallel to the belt package. Also provided is a process for detecting a pneumatic vehicle tire with a sealant layer and to a process for recycling a pneumatic vehicle tire with sealant. The sealant layer has at least one luminescent agent on its radially inward-facing surface. The tire is detected via the luminescent agent.

A pneumatic radial tire for passenger vehicles of the present disclosure includes a carcass toroidally spanning between a pair of bead portions and including plies of radially arranged cords. A sectional width SW and an outer diameter OD of the tire satisfy a predetermined relational expression. At least one noise reducer is provided on an inner surface of the tire. A ratio L (mm) / S (mm2) is in a range from 0.02 to 1.5, where L (mm) denotes a circumferential length of the noise reducer and S (mm2) denotes a cross-sectional area of the noise reducer.

To provide a tire capable of exerting an excellent wet property while retaining wear resistance.SOLUTION: Provided is a tire including a tread portion 2. The tread portion 2 includes a circumferential groove 3 and a land portion 4. The land portion 4 is provided with at least one shallow groove 30 communicating with the circumferential groove 3. The shallow groove 30 includes a pair of groove walls 30w continuous in a V-shape in a transverse section orthogonal to a longitudinal direction of the shallow groove 30. The groove width of the shallow groove 30 is 1.5 to 2.5 mm. The pair of groove walls 30w are inclined at an angle of 30 to 50° with respect to a tread normal line erected on a groove edge of the shallow groove 30.SELECTED DRAWING: Figure 1

According to an aspect of the present invention, a vehicle tire having a tread is provided. The tread comprises a set of continuous blocks arranged along the outer circumference of the tire; a plurality of first grooves arranged across the outer circumference of the tire, each of which is positioned between two blocks of the set of continuous blocks; and a plurality of sipes, each defining an edge component El corresponding to the ratio of the sum of the axial projection lengths SAP of the plurality of sipes to the outer circumference C of the tread. El is at least 2 and at most 20. The tread is made from a rubber composition having an E' of at least 20 MPa and at most 80 MPa at -20°C when measured according to ISO 4664.

To provide a tire in which the total performance of the grip performance in the time of straight travel under a high-speed travel condition and the grip performance in the time of cornering is improved.SOLUTION: A tire includes a tread part whose mounting direction to a vehicle is designated. The tread part includes an inner side tread rubber layer which constitutes a vehicle inner end side in the time of mounting to the vehicle; and an outer side tread rubber layer which constitutes a vehicle outer end side. A ratio (D / WL) of a distance D to an interface between the inner side tread rubber layer and the outer side tread rubber layer from a vehicle outer ground contact end to a distance WL between both ground contact ends is equal to or greater than 0.50. An average value tanδAin of a loss tangent tanδ at 0°C to 50°C of the inner side tread rubber layer measured under a condition of 10 Hz of a frequency, 1% of an initial strain and ±0.1% of an amplitude is equal to or less than 0.30. An average value tanδAout of the loss tangent tanδ at 0°C to 50°C of the outer side tread rubber layer measured under a condition of 10 Hz of the frequency, 1% of the initial strain and ±0.1% of the amplitude is equal to or greater than 0.40.SELECTED DRAWING: None

The present invention relates to a noise-reducing pneumatic tire and a method for manufacturing the same, and more particularly to a noise-reducing pneumatic tire that has improved sound absorption performance and can be stably mounted, and a method for manufacturing the same. [Solution] The noise-reducing pneumatic tire of the present invention comprises an inner liner for a pneumatic tire and a sound-absorbing structure attached to the inner liner. The sound-absorbing structure has a configuration that includes a sound-absorbing body attached to the inner surface of the inner liner along the circumferential direction of the pneumatic tire, and a through hole formed in the sound-absorbing body, which allows a sensor to be placed inside.

To provide a tire in which the steering stability on a dry road surface is improved.SOLUTION: A tire includes a tread portion 2 whose direction of attachment to a vehicle is designated. A land portion 4 of the tread portion 2 includes a crown land portion 13, a first middle land portion 12, and a second middle land portion 14. Under a 50% loaded condition of being rim-assembled to a normal rim at a normal inner pressure, loaded with 50% of the normal load, and grounded to the planar surface at a camber angle 0°, when widths of the ground contact surfaces in the tire axial direction of the first middle land portion 12, the crown land portion 13, and the second middle land portion 14 are respectively W1m, Wc, and W2m, the following formula (1) is satisfied, When the widths in the tire axial direction of an outer ground contact surface 36 and an inner ground contact surface 37 of the crown land portion 13 are respectively Wco and Wci, the following formula (2) is satisfied, W1m>Wc>W2m...(1). Wco>Wci...(2).SELECTED DRAWING: Figure 1

To provide a pneumatic radial tire for a passenger vehicle, capable of curbing uneven wear while curbing degradation of a ground contact shape when a camber angle is changed.SOLUTION: A pneumatic radial tire for a passenger vehicle has: a cross-sectional width SW and an outer diameter OD which satisfy a predetermined relation; only two circumferential main grooves which are extended on a tread in a tire circumferential direction so that a gravity center of the circumferential main grooves is positioned on a one-half side in a tread width direction, with an equatorial plane of the tire as a boundary, corresponding to an outer side of the vehicle when the tire is mounted thereon; and a predetermined falling height (or a relation with a ground contact length or a relation with a tread gauge).SELECTED DRAWING: Figure 2

To provide a tire capable of exerting excellent wet performance and noise performance.SOLUTION: A tire has a tread portion 2. A crown land part 15 is provided with a plurality of first crown sipes 36 communicating with a first vertical edge 15a and having an interrupted end 36a in a crown land part 15. At least one of the first crown sipes 36 includes a chamfering area 31 opening to a tread surface through the chamfering portion 38, and a non-chamfering area 32 opening to the tread surface without interposing the chamfering portion 38. The non-chamfering area 32 starts from the interrupted end and is formed within a range of 5% to 20% of a length in a tire axial direction of the first crown sipe 36. The chamfering area 31 is formed within a range of 80% to 95% of a length in the tire axial direction of the first crown sipe 36.SELECTED DRAWING: Figure 1

The invention relates to a vehicle tire which contains at least in an inner layer (1) a vulcanizate obtained by sulfur vulcanization of a rubber mixture which contains at least the following components: a) at least 80 phr of at least one isobutene-isoprene rubber (IIR), b) a total of 5 to 50 phr of carbon fillers comprising at least one carbon black, wherein the carbon black preferably has a low mean BET surface area according to DIN ISO 9277 of a maximum of 30 m2 / g.

The present invention provides a sound-absorbing structure and a tire that can reduce resonance noise within the tire cavity. [Solution] The sound-absorbing structure 1 attached to the inner cavity 102 of the tire 101 comprises a skin 10 having through holes 11, a porous sound-absorbing body 20 housed in the skin 10, and a hollow neck portion 30 that communicates with the through holes 11 and is embedded in the porous sound-absorbing body 20. The skin 10 has a top portion 12 having through holes 11, and a side portion 13 extending from the peripheral edge of the top portion 12 to the mounting surface 2 attached to the inner cavity 102 of the tire 101.

At least one of the one or more main grooves 2 is a meandering main groove 21, the first and second groove walls 2a and 2b of which have an upper and lower groove wall portion, respectively, and the upper groove wall portion is connected to the groove bottom 2c via the lower groove wall portion. The first groove wall 2a has the lower groove wall-top edge 2ale extending in a wavy line along the tire circumferential direction in order that a minimum groove wall angle portion and a maximum groove wall angle portion appear alternately at a predetermined repetition cycle along the tire circumferential direction, and the second groove wall 2b has the lower groove wall-top edge 2ble extending in a wavy line along the tire circumferential direction. In the first groove wall 2a, the minimum groove wall angle portion and a wide groove section, and the maximum groove wall angle portion and a narrow groove section, respectively, are located at the same position in the tire circumferential direction. The upper groove wall-top edge 2aue of the first groove wall 2a extends in a straight line, a wavy line or a zigzag line with an amplitude smaller than an amplitude of the lower groove wall-top edge 2ale of the first groove wall 2a.

To provide a pneumatic tire and a method for manufacturing the same that make it possible to reduce low-frequency road noise without deteriorating high-speed durability.SOLUTION: A pneumatic tire includes a tread portion 1 extending in a tire circumferential direction to form an annular shape, a pair of sidewall portions 2 disposed on both sides of the tread portion 1, and a pair of bead portions 3 disposed on inner sides of the sidewall portions 2 in a tire radial direction. The pneumatic tire has a specified mounting direction with respect to a vehicle. A sealant layer 20 is formed on a tire inner surface Ts of the tread portion 1. With a tire center line CL as a boundary, a cross-sectional area Sin [mm2] on a vehicle inner side and a cross-sectional area Sout [mm2] on a vehicle outer side in the sealant layer 20 are different from each other, and the cross-sectional area Sout on the vehicle outer side is larger than the cross-sectional area Sin on the vehicle inner side.SELECTED DRAWING: Figure 1

To provide a tire that can reduce pitch noise. [Solution] A tire 1 having a tread portion 2 including a plurality of circumferential grooves 5 and a plurality of land portions 6. Each of the plurality of land portions 6 has a plurality of groove-shaped portions 20 formed thereon, having a first end on one side in the tire circumferential direction and a second end on the other side in the tire circumferential direction. In the arrangement rules for the plurality of groove-shaped portions 20, for each pair of adjacent groove-shaped portions 20 in the tire circumferential direction, the first end of one groove-shaped portion 20 of the pair and the second end of the other groove-shaped portion 20 of the pair are formed at the same position in the tire circumferential direction, and are formed on the same land portion 6 or on different land portions 6. In at least one land portion 6 under a 70% load condition, the absolute value of the difference between the angle θa of the contact edge on both sides in the tire circumferential direction with respect to the tire axis and the angle θb of the groove-shaped portion 20 with respect to the tire axis is 5 degrees or more.

A pneumatic radial tire for passenger vehicles that satisfies a defined relationship between sectional width SW and outer diameter OD of the tire, and includes only two circumferential main grooves extending in a tire circumferential direction on a tread contact surface, a barycenter of the circumferential main grooves being positioned in a half portion of the tire on a vehicle-mounted outward side, which is one side of the tire in a tread width direction with a tire equatorial plane as a boundary. A drop height (or ground contact length relationship, or tread gauge relationship) is also defined.

The invention relates to a tire, a vehicle, a tire manufacturing method and a tire friction force control method.The tire comprises an outer tire body and a rim assembly, the periphery of the rim assembly is sleeved with the outer tire body, a plurality of micropores are formed in the surface of the outer tire body, the rim assembly is provided with a flow channel, one end of the flow channel is communicated with the micropores, and the other end of the flow channel is communicated with the rim assembly. The other end of the flow channel is used for being connected with an external medium source. By designing the micropores capable of discharging liquid or air in the surface of the outer tire body, the friction force can be actively adjusted as required under different road conditions, so that the tire can be dynamically adjusted according to actual road conditions (such as wet and slippery conditions, dry conditions, ice and snow conditions and the like), the adaptability is high, and the service life is long. The risk that the vehicle slides or is out of control due to insufficient or overlarge friction force is effectively reduced, the defects that in the prior art, reaction adjustment is lagged and not timely are overcome, and the driving stability and safety can be remarkably improved.

To improve wear resistance of a shoulder part on a vehicle mounting outer side.SOLUTION: The tire 10 for the inclined vehicle has a tire case 18 straddling a pair of bead parts 16 and a tread 20 provided on the outer side in the tire radial direction of the tire case 18, and a groove depth on the vehicle mounting outer side is larger than a groove depth on the vehicle mounting inner side in a groove formed on a tread surface.SELECTED DRAWING: Figure 4

The utility model provides a tire with high sealing performance, which comprises a tire main body, a tire pattern groove is arranged on the outer surface of the tire main body, an inner rim is arranged at the position of an inner lip on the inner side, a plurality of outer magnetic strips are arranged in an outer lip integrally arranged on the tire main body, an embedded nut is embedded in each outer lip, and a plurality of outer magnetic strips are arranged on the outer lip. The outer rim is fixed on the embedded nut of the outer lip edge through a bolt; according to the utility model, the outer magnetic strip in the outer lip is used for magnetically adsorbing the hub to form dynamic sealing, and the outer rim is connected with the embedded nut through the bolt to provide mechanical fastening, so that double sealing is formed, and the sealing performance is enhanced; and load can be dispersed, stress concentration can be relieved, stability can be improved, service life can be prolonged, parts can be protected under extreme conditions, air leakage can be delayed, and safety can be improved.

The utility model belongs to the technical field of mobile charging devices, and particularly relates to a vehicle type mobile charging device, which comprises a frame, the front end of the frame is fixedly connected with a trailer hook, the upper part of the frame is fixedly provided with a battery box, a rechargeable battery is arranged in the battery box, and a charging gun is hung on the side wall of the battery box. And four positioning columns are fixedly mounted at the top of the battery box. The trailer hook is convenient to move and can flexibly meet the charging requirement, the charging guns can charge multiple vehicles at the same time, efficiency is improved, the photovoltaic panel is matched with the battery box, electric energy is supplemented through solar energy, dependence on an external power source is reduced, the touch type liquid crystal display screen facilitates operation and information checking, different discharging interfaces are matched with multiple devices, and the charging efficiency is improved. The inflatable rubber tires are shock-absorbing, high in road holding force and low in noise, stable movement is guaranteed, the charging problem of the electric automobile is integrally and effectively solved, charging convenience and equipment practicability are improved, and development of the electric automobile industry is promoted.