488results 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.

Methods are described that perform a dispatched consumer-to-store return or swap logistics operation for an item being replaced using a modular autonomous bot apparatus assembly and a dispatch server. The method begins with receiving a return operation dispatch command that includes identifier information, transport parameters, and designated pickup information for the item being replaced / returned, along with authentication information related to an authorized supplier of the item being replaced. Modular components of the bot apparatus are verified to be compatible with the dispatched logistics operation. The MAM then autonomously causes the bot apparatus to move to the designated pickup location, notifies the authorized supplier of an approaching pickup, receives supplier authorization input to permissively allow access to a payload area within the bot apparatus, monitors loading as the item being replaced is received along with return documentation, and then autonomously causes movement of the bot apparatus back to the origin location.

To provide a tire 2 that can suppress generation of peeling-off of a tread while suppressing increase in rolling resistance.SOLUTION: A tire 2 includes a tread 4 and a belt 20. An end BE of a base layer 34 of the tread 4 is positioned on an axial direction inner side of an end 20E of the belt 20. The tread 4 includes a plurality of circumferential grooves 30, and a plurality of land parts 32 are constituted by them. The plurality of land parts 32 include crown land parts 32c, shoulder land parts 32s and middle land parts 32m. A cap layer ratio ARc of the crown land part 32c is 1.5 or more and 3.5 or less. A cap layer ratio ARm of the middle land part 32m is equal to or more than the cap layer ratio ARc of the crown land part 32c. A cap layer ratio ARs of the shoulder land part 32s is larger than the cap layer ratio ARm of the middle land part 32m, and is 5.0 or more and 9.5 or less.SELECTED DRAWING: Figure 6

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.

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.

Provided is a tire capable of reducing pitch noise. 【Solution means】 A tire 1 having a tread portion 2 including a plurality of circumferential grooves 5 and a plurality of land portions 6. In each of the plurality of land portions 6, a plurality of groove-like portions 20 are formed, which have 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 rule of the plurality of groove-like portions 20, for each of all pairs of groove-like portions 20 adjacent in the tire circumferential direction, the first end of one groove-like portion 20 in the pair and the second end of the other groove-like portion 20 in 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 from each other. In at least one land portion 6 in a 70% load-bearing state, the absolute value of the difference between the angle θa of the ground contact edge on both sides in the tire circumferential direction with respect to the tire axial direction and the angle θb of the groove-like portion 20 with respect to the tire axial direction is 5 degrees or more.

Provided is a pneumatic tire capable of improving low fuel consumption performance by reducing air resistance during running. 【Solution means】The present invention is a pneumatic tire 1 including a ground contact surface 3a extending from a first ground contact end Te1 to a second ground contact end Te2, and a first side outer surface 6a extending inward in the tire radial direction from the first ground contact end Te1. The tread portion 3 has a first shoulder circumferential groove 4A and a first shoulder land portion 5A defined by the first shoulder circumferential groove 4A and the first ground contact end Te1. The ground contact surface 3a has a first virtual line L1, which is a tangent line at the intermediate position Pm in the tire axial direction of the first shoulder land portion 5A, having a first angle θ1 of 74 to 80° with respect to the tire radial direction. The first side outer surface 6a has a second virtual line L2, which is a tangent line at the first position P1, having a second angle θ2 of 36 to 40° with respect to the tire radial direction. The distance t in the tire radial direction between the first ground contact end Te1 and the tire equator C is 2% to 6% of the ground contact width TW.

Methods and enhanced apparatus used in such methods are described that a dispatched logistics operation for a deliverable item from a hold-at-location (HAL) logistics facility having a secured storage and using a modular autonomous bot apparatus assembly and a dispatch server. The bot apparatus assembly picks up and delivers the item from the HAL facility in response to a delivery dispatch command from the dispatch server. In response, the MAM of the bot verifies compatibility of modular components for the operation, controls receiving of the deliverable item from the secured storage at the HAL facility, then autonomously causes movement to the delivery destination. The MAM notifies the customer before delivery of the approaching delivery, authenticates delivery is to the authorized customer, provides access to the item within the bot apparatus assembly, monitors unloading of the item, then autonomously moves back to the HAL facility.

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.

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.

To provide a better stiffness-adjustable device.SOLUTION: A stiffness-adjustable device 10 comprises: a stiffness-adjustable member 24 that is removably provided in a tire inner cavity 33 of a tire 30 having a tread portion 40 with a tread surface 41; and a control unit 18 that controls the stiffness of the stiffness-adjustable member 24 by providing a power source 16 to the stiffness-adjustable member 24. The control unit 18 changes the stiffness of the tread portion 40 by varying the stiffness of the stiffness-adjustable member 24.SELECTED DRAWING: Figure 1

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.

The invention provides a pneumatic tire which improves wear resistance and fuel economy performance of a tire shoulder land portion under a specific tire size. The present invention relates to a pneumatic tire having a rim diameter (RD) of 10-18 inches. The ratio (SH / SW) of the cross-sectional height (SH) to the cross-sectional width (SW) is 0.30-0.45. The ratio (RW / SW) of the rim width (RW) to the cross-sectional width (SW) is 0.78 to 0.99. The width (W1) (mm) of the tread surface of the first shoulder land portion (11) satisfies the following formula (1). The width (W1) (mm), the thickness (T1) (mm) of the first rubber layer (21), the thickness (T2) (mm) of the second rubber layer (22), the loss tangent (tan [delta] 1) of the first rubber layer (21) at 30 DEG C, and the loss tangent (tan [delta] 2) of the second rubber layer (22) at 70 DEG C satisfy the following formula (2): W1 > 0.001 * (SW * SH) (1) W1 * (T1 * tan [delta] 1 + T2 * tan [delta] 2) / (T1 + T2) < = 4 (2).

To provide a tire which improves wet performance while keeping stability on a dry road surface.SOLUTION: A tire includes a tread part 2. The tread part 2 includes a first shoulder circumferential groove 5 and a first shoulder land part 11. The shoulder land part 11 includes a plurality of first shoulder lateral grooves 20. At least one of the first shoulder lateral grooves 20 includes: an inner end 20i which is communicated with the first shoulder circumferential groove 5; a maximum groove width part 21; and an outside part 22. The maximum groove width part 21 is positioned approximately at the center of a ground plane of the first shoulder land part 11 in a tire axial direction. A groove width of the inner end 20i and a groove width of the first shoulder lateral groove 20 at a first tread end T1 are each smaller than the maximum groove width. In the outside part 22, a groove width becomes smaller toward outside in the tire axial direction.SELECTED DRAWING: Figure 1

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 present invention is a pneumatic tire 1 having a tread portion 2. The pneumatic tire 1 has a sponge-like sound absorbing body 5 disposed on an inner surface side of the tread portion 2. A ratio (H / T) between a hardness H (N) of the sound absorbing body 5 at 23 degrees C under 25% compression and a height T (mm) in the tire radial direction of the sound absorbing body 5 is 1.0 to 2.5. A ratio (T / W) of a width W (mm) in the tire axial direction and the height T (mm) of the sound absorbing body 5 is 0.25 to 1.20.

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).

Provided are a pneumatic tire and a method for manufacturing the same, which make it possible to enhance the adhesion between the inner surface of the tire and the sealant layer and improve the durability of the tire. In a pneumatic tire including a tread portion 1 extending in the circumferential direction of the tire and forming 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 inner side in the radial direction of the tire of these sidewall portions 2, the inner surface Ts of the tire has a release layer 10 containing a silicone-based composition, a sealant layer 20 is formed on the inner side in the radial direction of the tire of the release layer 10 in the tread portion 1, the sealant of the sealant layer 20 is composed of a silicone-based composition, and the absolute value of the difference between the contact angle of water with respect to the release layer 10 and the contact angle of water with respect to the sealant layer 20 is 30° or less.

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 tire capable of suppressing decrease in power supply efficiency even on wet road surfaces; and a wireless power supply system utilizing the tire. A tire 10 includes: a tread section D that includes a tread surface 34; a pair of bead sections A; and a pair of sidewall sections B disposed between the tread section D and the bead sections A. The tire 10 comprises a power reception coil 40 that receives power supplied via an alternating-current magnetic field from outside the tire 10. In a view of a tire meridian cross-section in a non-loaded state, the power reception coil 40 is disposed on the radially inner side of the tire relative to the outermost position OP where a first virtual line L1, forming an angle α of 15° with a tire equatorial plane CP, and a tire side surface contact.

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 reduce cavernous resonance with a simple configuration.SOLUTION: A pneumatic tire 1 includes a plurality of Helmholts sound absorbers 9 arranged on a tire inner cavity surface 1i. The plurality of Helmholts sound absorbers 9 includes a first resonance frequency f1 which is a maximum resonance frequency fmax, and a second resonance frequency f2 which is a minimum resonance frequency fmin. The difference (f1-f2) between the first resonance frequency f1 and the second resonance frequency f2 is 9 to 90 Hz.SELECTED DRAWING: Figure 1

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

To provide a tire which is excellent in a brake performance.SOLUTION: A tire includes a tread including two or more circumferential grooves, a first shoulder land part, and a second shoulder part. The first shoulder land part and the second shoulder land part have lateral grooves extending in a tire width direction. A first groove wall of the lateral grooves has a first region inclined so that a groove width is enlarged toward an opening of the lateral groove, and a second groove wall of the lateral groove has a second region inclined so that the groove width is enlarged toward the opening of the lateral groove. An inclination angle of the first region to a profile surface of the tread is smaller than an inclination angle of the second region to the profile surface. The first region is formed on the first direction side in the tire circumferential direction of the lateral grooves in the first shoulder land part, and is formed on the second direction side in the tire circumferential direction of the lateral grooves in the second shoulder land part.SELECTED DRAWING: Figure 1

To provide a tire capable of having both tire snow performance and low rolling resistance performance.SOLUTION: In a tire 1, a middle land part 32 comprises: first middle thin grooves 321 having a linear shape or circular arc shape and penetrating the middle land part 32; and second middle thin grooves 322 having a Z-shape and penetrating the middle land part 32. A center land part 33 comprises: first center thin grooves 331 having one end on an edge of the center land part 33, connected to a center main groove 22, and having the other end in the center land part 33; and second center thin grooves 332 extending in a tire circumferential direction and having both ends in the center land part 33. The first center thin grooves 331 are inclined in one direction in the tire circumferential direction toward the other end from the one end. The first center thin grooves 331 and the second center thin grooves 332 are arrayed in a V-shape with an apex facing the one direction in the tire circumferential direction.SELECTED DRAWING: Figure 3

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

To provide a pneumatic tire which enables reduction of electric resistance when a sealant layer is provided on a tire inner surface.SOLUTION: A pneumatic tire includes: a tread part 1 extending in a tire circumferential direction and forming an annular form; a pair of side wall parts 2 disposed at both sides of the tread part 1; and a pair of bead parts 3 disposed at the inner side in a tire radial direction of the side wall parts 2. Further, a carcass layer 4 is installed between the pair of bead parts 3, 3, and a belt layer 7 is buried at the outer periphery side of the carcass layer 4 in the tread part 1. A sealant layer 20 is disposed on a tire inner surface 10 in the tread part 1 and a powder 15 containing conductive particles is applied to at least a part of the tire inner surface 10 in which the sealant layer 20 is not disposed. A conductive member 16 is arranged along the carcass layer 4 so as to overlap with both of the belt layer 7 and the area to which the powder 15 containing the conductive particles is applied.SELECTED DRAWING: Figure 3