Abstract: A sole of an athletic prosthetic leg according to the present disclosure is for attachment to a ground contact region of the athletic prosthetic leg. An open groove extending from an outer edge at least to a central location in the sole width direction is provided on a bottom surface, which is divided by the open groove into a toe region at the front and a main region at the back in the sole front-back direction. A groove having a minimum groove width larger than the maximum groove width of the open groove and a groove extending to an outer edge and having a maximum groove width of at least the maximum groove width of the open groove are not provided in the toe region. A groove having a minimum groove width larger than the maximum groove width of the open groove is provided in the main region.

Abstract: A sole which is attached to a ground contact region of an athletic prosthetic leg having a leaf-spring-like leg portion extending to a side of a toe via at least one curved portion, the ground contact region extending in an arc from the toe to a side of the curved portion is provided. The sole includes a bottom surface having a shape conforming to an extending shape of the ground contact region, and the bottom surface has at least one width direction land portion defined by a plurality of width direction grooves extending in a width direction of the sole. Moreover, the width direction land portion includes a chamfer at each of both end edges at border positions, respectively, between a contact patch and both side walls facing the plurality of width direction grooves.

Abstract: A sole for a prosthetic leg, attached to a ground contact region of the prosthetic leg, includes a bottom surface including: a first inclined surface portion including a first inclined surface inclined such that an amount of recess in a sole thickness direction gradually increases from one to the other sides in a predetermined direction in a planar view; and a second inclined surface portion including a second inclined surface inclined such that the amount of recess in the sole thickness direction gradually increases from the other to the one sides in the predetermined direction in the planar view. The first and second inclined surface portions are mutually connected in a connecting direction crossing the predetermined direction in the planar view, so that a continuous groove in which the first and second inclined surfaces constitute a part of a side wall and which extends in the connecting direction is defined.

Abstract: A sole for a prosthetic leg is a sole which is attached to a ground contact region of the prosthetic leg with a road surface and includes a through hole at least on a partial region.

Abstract: A sole of an athletic prosthetic leg, wherein the sole is attached to a ground contact region of the athletic prosthetic leg which has a leaf-spring-like leg portion extending to a side of a toe via at least one curved portion, the ground contact region extending from the toe to a side of the curved portion in an arc, wherein the sole includes a bottom surface having a shape conforming to an extending shape of the ground contact region, and the bottom surface includes at least one sipe linearly extending at a portion which continues at a constant radius of curvature from the toe, and the sipe terminates in the bottom surface.

Abstract: In a sole which is attached to a ground contact region of an athletic prosthetic leg which has a leaf-spring-like leg portion extending to a side of a toe via at least one curved portion, the ground contact region extending from the toe to a side of the curved portion in an arc, the sole includes a bottom surface having a shape conforming to an extending shape of the ground contact region, and, in the bottom surface, a region at the side of the curved portion, which is defined by a border as a line extending in a width direction of the leg portion through a contact point with a road surface in a standing state of a wearer who wears the athletic prosthetic leg, has a higher drainage performance compared with a region other than the region at the side of the curved portion.

Abstract: A pneumatic tire has a pair of bead portions each having a bead core embedded therein, a pair of sidewall portions extending radially outwardly from bead portions, a tread portion extending across both side wall portions, an annular outer decorative portion arranged radially outward and formed by means of printing on a side portion consisting of the sidewall and bead portions, and an annular inner decorative portion arranged radially inward of the outer decorative portion and formed by means of printing on the side portion. The inner decorative portion is provided with decoration in which first inner elements and second inner elements are alternately arrayed in a circumferential direction of the tire. The outer decorative portion is provided with decoration different from the decoration provided on the inner decorative portion.

Abstract: Provided is a tire in which a decorative part arranged in a sidewall section is improved to enhance the visibility during traveling and to reduce the number of steps of processing a mold, whereby the mold processability and the cost performance are improved. The tire includes a decorative band 10 formed by ridges 11 in a sidewall section 1, wherein the decorative band 10 includes a decorative element 15 constituted by repetition of a repetitive element 14, the decorative element 15 extending continuously from the tire radially inner side to the tire radially outer side of the decorative band 10 without any interruption; the repetitive element 14 is constituted by plural linear parts 16 and plural connecting parts 17 that connect the linear parts 16; the plural linear parts 16 are composed of linear parts that are oriented in 2 to 6 different directions; and angles ? formed by the linear parts 16 connected via the connecting parts 17 are 30° to 150°.

Abstract: Provided is a pneumatic tire for motorcycles which can exhibit a performance of a new tire at an early period and enables visual confirmation that the tire as new is worn to such an extent as to be capable of sufficiently exhibiting its performance. The pneumatic tire for motorcycles includes a tread portion 10 formed into a ring shape, in which the tread portion 10 is provided with a width direction shallow groove 11b in which the shallow groove having a width of 0.1 to 2.0 mm and a depth of 0.1 to 2.0 mm is designed to extend at least in a tire width direction. A length of the width direction shallow groove 11b is greater than or equal to 50% of a width of a tire ground contact surface, and the width direction shallow groove 11b is provided at intervals which are shorter than a length of the tire ground contact surface.

Abstract: Provided is a pneumatic tire for a motorcycle that is capable of early exhibiting performance of a new tire and that enables it to be visually confirmed that the new tire is worn to a degree that the tire can fully exhibit the performance. The pneumatic tire for a motorcycle includes a tread portion 1 formed into a ring shape, in which the tread portion 1 is provided with shallow grooves 2 having a width of 0.1 to 2.0 mm and a depth of 0.1 to 2.0 mm and extending in a tire circumferential direction.

Abstract: Provided is a motorcycle tire whose wear resistance and drainage performance are improved by refining the tread pattern. The motorcycle tire includes: a tread section; and side wall sections and bead sections that continuously extend on both sides of the tread section, and the rotation direction of the motorcycle tire when fitted to a motorcycle is designated. In a tread section 10, first inclined main grooves 1 of a linear or curved shape which are inclined with respect to the tire circumferential direction, second inclined main grooves 2 of a linear or curved shape which are inclined in the same direction as the first inclined main grooves 1 but at a different angle, and shallow grooves 3 which are inclined in a different direction from the first inclined main grooves 1 and the second inclined main grooves 2 with respect to the tire circumferential direction are arranged, and the shallow grooves 3 are arranged only in a shoulder part.

Abstract: A motorcycle tire whose wear resistance and drainage performance are improved by refining the tread pattern, including: a tread section; side wall sections and bead sections that continuously extend on both sides of the tread section, and the rotation direction of the tire when fitted to a motorcycle is designated. At least two inclined main grooves inclined with respect to the tire circumferential direction and at least two shallow grooves are arranged on the surface of the tread section and, when, among the at least two inclined main grooves, the one whose tire width direction inner end is closest to the tire equatorial plane is defined as a first inclined main groove, the at least two shallow grooves include: a center-side shallow groove and a shoulder-side shallow groove.