Abstract: Heavy duty pneumatic tire with a tread portion having a zigzag crown main groove and a pair of zigzag shoulder main grooves forming two crown land portions between the crown main groove and two shoulder main grooves. The crown land portion is divided by crown lateral grooves into circumferentially arranged crown blocks. The crown lateral grooves in each crown land portion extend from alternate axially inside zigzag vertices of the shoulder main groove to zigzag vertices of the crown main groove, while inclining with respect to the tire circumferential direction. The crown block has a crown auxiliary groove narrower in width than the crown main groove and extending to one of the zigzag vertices of the crown main groove to which none of the crown lateral grooves are connected, from one of the inside zigzag vertices of the shoulder main groove, while inclining with respect to the tire axial direction.

Abstract: A method and system for correcting a silhouette of a person extracted from an image by labeling each pixel as the person or the background are disclosed. The pixels in a target region are corrected by: a step in which, by the use of pixels in the target region labeled as the person, a person histogram is created; a step in which, by the use of pixels in the target region labeled as the background, a background histogram is created; a step in which, for each pixel in the target region, by the use of the person histogram, the background histogram and color data of each pixel in the target region, first connective costs of the pixel to the color data of the person and the background are calculated; and a step in which, for each pixel in the target region, a second connective cost of the pixel is calculated.

Abstract: [Object] Rolling resistance performance, high-speed-durability performance, and cornering performance are simultaneously realized at high levels. [Solution] A two-wheeled automotive vehicle tire 1 includes a tread portion having an outer surface that extends so as to be curved such that the outer surface is convex outward in the tire radial direction, and is arc-shaped. A tread rubber 2G includes a center rubber CR, shoulder rubbers SH, and middle rubbers MD. The center rubber CR includes a center cap layer CRc and a center base layer CRb. A loss tangent tan ?1b of the center base layer CRb and a width L1b thereof in the tire axial direction are each limited so as to be set within a predetermined range.

Abstract: A pneumatic tire has a tread portion divided into a crown rib, a pair of middle ribs and a pair of shoulder ribs by two crown main grooves and two shoulder main grooves. The width of the crown main groove is 5.5 to 7.5% of the tread width. The width of the shoulder main groove is 50 to 70% of the crown main groove width. The crown rib has crown sipes extending from the crown main grooves. The middle rib has axially inner middle sipes extending axially outward from the crown main groove and ending within the middle rib, and axially outer middle sipes extending axially inward from the shoulder main groove and ending within the middle rib. The shoulder rib has shoulder sipes extending axially outward from the shoulder main groove, and shoulder lug grooves extending axially inward from the tread edge ending within the shoulder rib.

Abstract: A pneumatic tire includes a tread having a center main groove and a pair of shoulder main grooves, a pair of center portions between the center main groove and the shoulder main grooves, and a pair of shoulder portions between the shoulder main groove and tread edges. Each center portion includes: center lateral grooves extending from the shoulder main groove toward the axially inside of the tire without reaching the center main groove so as to have an axially inner end thereof on the center portion with an angle of 35 to 65 degrees with respect to an axial direction of the tire; center lateral sipes extending from axially inner ends of the center lateral grooves to the center main groove in the same inclination direction as the center lateral groove at an angle of 35 to 65 degrees with respect to an axial direction of the tire.

Abstract: A pneumatic tire comprises a carcass extending between bead portions through a tread portion and sidewall portions, and a band disposed radially outside the carcass in the tread portion. The band is composed of at least one steel cord spirally wound in the tire circumferential direction. The steel cord is made up of five steel filaments having a diameter of 0.2 mm and twisted together to have a 1×5 structure. The five steel filaments include at least one shaped filament shaped before twisted. The steel cord has a compressive stiffness of from 200 to 400 N/mm.

Abstract: A pneumatic tire comprises: a tread portion with an inboard and an outboard tread edges; a pair of inboard and outboard center main grooves to define a center portion therebetween; a pair of inboard and outboard shoulder main grooves; an inboard middle portion between the inboard center and shoulder main grooves; an outboard middle portion between the outboard center and shoulder main grooves; an inboard shoulder portion defined the axially outside of the inboard shoulder main groove; an outboard shoulder portion defined the axially outside of the outboard shoulder main groove; the outboard shoulder main groove with a groove width smaller than those of other main grooves; the outboard middle portion having a width larger than that of the inboard middle portion; and a plurality of outboard shoulder lateral grooves each extending from the outboard tread edge to its inner end terminating on the outboard middle portion.

Abstract: A camera 10 photographs a golf player swinging a golf club to hit a golf ball and the golf club. Image data is obtained by photographing. A calculating part 16 extracts a plurality of frames from the image data. The calculating part 16 determines a check frame in which the golf player is in a predetermined posture from the plurality of frames. The calculating part 16 determines a contour of the golf player from the check frame. The calculating part 16 decides a swing from the contour of the golf player. An extreme value constituting the contour is determined in deciding the swing. A feature point is determined from the extreme value. The swing is diagnosed using the feature point.

Abstract: A tread portion 2 of a pneumatic tire is divided by a center longitudinal groove and a shoulder longitudinal groove into a center land portion 6, an outer middle land portion 7A, an inner middle land portion 7B, an outer shoulder land portion 8A, and an inner shoulder land portion 8B. The outer shoulder land portion 8A includes an array of outer shoulder blocks 22 which are sectioned by outer shoulder lateral grooves 5A. The inner shoulder land portion 8B includes inner shoulder lateral grooves 26 having an inner end 26i and an outer end 26o in the land portion 8B, and inner shoulder auxiliary grooves 28 disposed between the inner shoulder lateral grooves 26, 26 which are circumferentially adjacent to each other and having inner ends 28i and outer ends 28o in the land portion 8B.

Abstract: A motorcycle tire includes a tread having shoulder blocks, and sidewalls. Each shoulder block includes a main portion and an end portion. The main portion is formed by a first crosslinked rubber composition. The end portion and the sidewalls are formed by a second crosslinked rubber composition. JIS-A hardness Ha of the main portion is greater than JIS-A hardness Hb of the end portion and the sidewalls. Difference (Ha?Hb) is greater than or equal to 5, and is not greater than 12. A ratio (H2/H1) of a height H2 from a boundary point Pb between the tread and each sidewall to a boundary point P2 between the main portion and the end portion, relative to a height H1 from the boundary point Pb to an outermost end P1 of a corresponding one of the shoulder blocks in the axial direction, is greater than or equal to 1/3.

Abstract: A heavy duty pneumatic tire comprises a tread portion provided with a crown main groove and a middle axial groove. The middle axial groove extends axially outwardly from its axially inner end axially outwardly spaced apart from the crown main groove and inclines with respect to the tire circumferential direction at an angle of from 45 to 75 degrees. In a cross section along the widthwise center line of the middle axial groove, an end wall of the axially inner end is inclined at an angle 0 to 50 degrees with respect to the normal direction to the tread from the radially outer edge of the end wall toward the groove bottom, and a corner between the end wall and the groove bottom is chamfered by an arc having a radius of curvature of 1 to 10 mm.

Abstract: A pneumatic tire comprises a tread portion provided with a tread groove and a tread reinforcing band. The tread reinforcing band is disposed radially outside a carcass in the tread portion as the radially outermost reinforcing cord layer composed of a plurality of reinforcing cords laid at an angle of not more than 5 degrees with respect to the tire circumferential direction. The reinforcing cords is composed of a plural number N of steel filaments twisted together into a 1×N open twist structure. The shortest distance between the bottom of the tread groove and the underlying reinforcing cords is in a range of from 0.5 to 2.0 mm.

Abstract: The present invention provides a rubber composition for a tire which makes it possible to maintain weather resistance for a long time without damaging the appearance of tires and to reduce the use of petroleum resources, and whose raw materials are easily obtainable; and also provides a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for a tire, including a rubber component and a microalgae-derived natural wax.

Abstract: A diagnosing method of a golf swing according to the present invention includes the following steps: (x) a camera photographing a golf player swinging a golf club to hit a golf ball and the golf club to obtain a plurality of frames for determining a shaft position; (y) a calculating part subjecting a check frame for judging the shaft position and the other frame to difference processing and binary processing using the plurality of frames, to obtain a binarized difference image; and (z) the calculating part subjecting the difference image or a corrected image thereof to Hough transform processing to attempt to extract the shaft position.

Abstract: A pneumatic tire comprises a tread portion with a left-right asymmetry tread pattern including inboard and outboard tread edges, a pair of inboard and outboard center main grooves to form a center portion therebetween, a pair of inboard and outboard shoulder main grooves to form a pair of middle portions and a pair of shoulder portions, inboard lateral main grooves extending from the inboard tread edge beyond the tire equator without reaching the outboard center main groove, inboard shoulder lateral grooves between adjacent inboard lateral main grooves, outboard shoulder lateral grooves extending from the axially outside of the outboard tread edge without reaching the outboard shoulder main groove, inboard middle lateral grooves between adjacent inboard lateral main grooves and extending from the inboard shoulder main groove without reaching the inboard center main groove, outboard middle lateral grooves and outboard middle sub lateral grooves.

Abstract: The present invention provides a rubber composition for an undertread, which has improved in processability, fuel economy, and tensile properties in a balanced manner, and also provides a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for an undertread, including: a rubber component containing a modified natural rubber having a phosphorus content of 200 ppm or less; and carbon black and/or a white filler, wherein the modified natural rubber is contained in an amount of 5% by mass or more per 100% by mass of the rubber component.

Abstract: A pneumatic tire has an asymmetric tread pattern. The width of an outboard shoulder main groove (3) is 3 to 4% of the tread width TW. The width of an inboard shoulder main groove (4) is 5 to 6% of TW. The width of an outboard crown main groove (5) is 6 to 7% of TW. The width of an inboard crown main groove (6) is 6 to 7% of TW. In each of the grooves (4, 5, 6), an outboard groove face's angle ?1 is more than an inboard groove face's angle ?2, wherein ?1 is 13 to 19 degrees, and ?2 is 9 to 14 degrees. In the groove (3), an outboard groove face's angle ?3 is 9 to 14 degrees, and an inboard groove face's angle ?4 is 5 to 8 degrees.

Abstract: A heavy duty pneumatic tire includes main grooves that extend in the tire circumferential direction. A siped block is provided with at least one sipe to circumferentially subdivide the block into at least two block pieces that include at least one holed block piece provided with at least one small hole. Each small hole extends radially inwardly from the ground contacting surface of the holed block piece to its bottom at a depth in a range of from 30 to 100% of a depth of the main grooves. Each small hole has a round cross-sectional shape to have a maximum radius in a range of from 0.6 to 2.0 mm at the opening of the small hole in the ground contacting top surface. The total opening area of the at least one small hole is 2 to 12% of the overall area of the ground contacting top surface.

Abstract: A pneumatic tire with a specified rotational direction includes a tread portion provided with a pair of circumferentially extending crown main grooves disposed on both sides of the tire equator, a plurality of inclined lateral grooves each extending axially outside of the tire from each crown main groove to each tread edge toward the anti-rotational direction to separate a plurality of shoulder blocks between crown main grooves and tread edges, and a sipe, inclined lateral grooves with inclinations of 45-85 degrees with respect to the tire circumferential direction, each shoulder block with a heel-side edge and a toe-side edge which comes into contact with a road later than the heel-side edge in the specified rotational direction, in a planer view, the heel-side edge smoothly extending in a curved manner from a first end intersecting a groove wall of the crown main groove to a second end intersecting the tread edge.

Abstract: A pneumatic tire comprises a tread portion provided with a tread element provided with a pair of sipes. Each sipe comprises a radially outer constant width part and a widening part extending radially inwardly from the constant width part while gradually increasing the width of the sipe and then extending to the radially inner end of the sipe while gradually decreasing the width of the sipe. Each of the paired sipes has an inside sidewall surface positioned toward the other of the paired sipes and an outside sidewall surface positioned away from the other of the paired sipes. The inside sidewall surface includes an inside curved bottom surface having a radius of curvature Rib. The outside sidewall surface includes an outside curved bottom surface having a radius of curvature Rob more than the radius of curvature Rib.