Abstract: The pipe articles with excellent stress crack resistance can be achieved by providing ethylene copolymer composition comprises ethylene and a C6-C10 ?-olefin comonomer; the ethylene copolymer having a total density of 0.945-0.980 g/cm3 and a MFR5 of 0.10-0.50 g/10 min; and the ethylene copolymer having a comonomer content of 1-5% wt. The ethylene copolymer has Mx/My in the range of not less than 14.0; gpcBR in the range of from 0.20 to 0.80; and strain hardening modulus <Gp> in the range of not less than 53.4.

Abstract: The pipe articles with excellent stress crack resistance can be achieved by providing ethylene copolymer composition comprises ethylene and a C6-C10 ?-olefin comonomer; the ethylene copolymer having a total density of 0.945-0.980 g/cm3 and a MFR5 of 0.10-0.50 g/10 min; and the ethylene copolymer having a comonomer content of 1-5% wt. The ethylene copolymer has Mx/My in the range of not less than 14.0; gpcBR in the range of from 0.20 to 0.80; and strain hardening modulus <Gp> in the range of not less than 53.4.

Abstract: The invention is directed to transmitting ground surface information to a foot sole of a shoe wearer accurately. Sole structure 1 includes a sole body 2 having a sole bottom surface 20 on a ground surface side and a sole top surface 21 on the opposite side thereof, a plurality of first protrusions 3 formed of elastic member and disposed on the sole bottom surface 20, and a plurality of second protrusions 4 formed of elastic member, disposed on the sole top surface 21 and located at positions corresponding respectively to positions of the first protrusions 3. A sectional shape of the first protrusion 3 is formed so that it gradually becomes smaller as it leaves the sole bottom surface 20. A distal end portion of the first protrusion 3 is formed of an arcuate shaped surface that protrudes downwardly. A sectional shape of the second protrusion 4 is formed so that it gradually becomes smaller as it leaves the sole top surface 21.

Abstract: A system for assisting shoe selection can select and present a shoe type that fits a customer by estimating the anatomical characteristics of a foot from the state of the foot. The system includes the following: a measured data input portion for measuring and inputting data that show the state of a foot of a person to be measured; a normalization processing portion for normalizing the data input from the measured data input portion and storing the normalized data at least temporarily; a shoe catalog database for storing information of a plurality of types of shoes; and a selection portion for estimating the anatomical characteristics of the foot of the person based on the normalized data, referring to the shoe catalog database based on the anatomical characteristics, and selecting and presenting a shoe type that fits the person.

Abstract: A system for assisting shoe selection can select and present a shoe type that fits a customer by estimating the anatomical characteristics of a foot from the state of the foot. The system includes the following: a measured data input portion for measuring and inputting data that show the state of a foot of a person to be measured; a normalization processing portion for normalizing the data input from the measured data input portion and storing the normalized data at least temporarily; a shoe catalog database for storing information of a plurality of types of shoes; and a selection portion for estimating the anatomical characteristics of the foot of the person based on the normalized data, referring to the shoe catalog database based on the anatomical characteristics, and selecting and presenting a shoe type that fits the person.

Abstract: A hard elastic body (10) having a longitudinally extending cavity (13) formed therein is provided mainly at a forefoot region (F) of a sole body. The cavity (13) is formed of a first curved surface (11) extending curvedly in a longitudinal direction and a second curved surface (12) disposed under the first curved surface (11) and extending curvedly in a longitudinal direction as well. A front and rear end of the second curved surface (12) is connected to a front and rear end of the first curved surface (11) respectively and an intermediate portion of the second curved surface (12) is spaced apart downwardly from an intermediate portion of the first curved surface (11). A path (PQ1) between the front and rear end of the first curved surface (11) is substantially equal to a path (PQ2) between the front and rear end of the second curved surface (12). When the first curved surface (11) is pressed downwardly, the sole body is deformed in such a way that a rear foot region (R) of the sole body is lifted upwardly.

Abstract: The present invention relates to a tightening system for footwear, especially in athletic shoe, and is directed to improve the fittability, supportability and stability of the shoe. The athletic shoe of the present invention includes a supporting portion (Fs) for supporting the lateral side of a foot of a shoe wearer, a first fastening element of a loop shape that surrounds the periphery of the calcaneus (f2) of the foot, and a second fastening element of a loop shape that is provided integrally with the supporting portion (Fs). The supporting portion(Fs) extends from the position in the vicinity of the head of the metatarsus on the lateral side of the foot over the rear portion of the calcaneus of the foot to the medial side.

Abstract: A midsole assembly for an athletic shoe comprising a midsole and a corrugated sheet. The midsole is formed of soft elastic material. The corrugated sheet is disposed in at least a heel portion of the midsole. Either or both amplitude and wavelength of wave configuration of said corrugated sheet are made different either or both between a front end portion and back end portion, and between an medial portion and lateral portion of said heel portion.

Abstract: A midsole assembly for an athletic shoe comprising a midsole and a corrugated sheet. The midsole is formed of soft elastic material. The corrugated sheet is disposed in at least a heel portion of the midsole. Either or both amplitude and wavelength of wave configuration of said corrugated sheet are made different either or both between a front end portion and back end portion, and between an medial portion and lateral portion of said heel portion.

Abstract: A midsole assembly for an athletic shoe includes a midsole formed of soft elastic material, and a corrugated sheet disposed in at least a heel portion of the midsole. The amplitude of the wave configuration of the corrugated sheet is larger at the medial and lateral sides of the heel portion and smaller at the central portion between the medial and lateral sides. Alternatively, the wave phase of the corrugated sheet is offset by one half of a wave pitch between the medial and lateral sides.

Abstract: The present invention relates to a tightening system for footwear, especially in athletic shoe, and is directed to improve the fittability, supportability and stability of the shoe. The athletic shoe of the present invention includes a supporting portion (Fs) for supporting the lateral side of a foot of a shoe wearer, a first fastening element of a loop shape that surrounds the periphery of the calcaneus (f2) of the foot, and a second fastening element of a loop shape that is provided integrally with the supporting portion (Fs). The supporting portion(Fs) extends from the position in the vicinity of the head of the metatarsus on the lateral side of the foot over the rear portion of the calcaneus of the foot to the medial side.

Abstract: A midsole assembly for an athletic shoe comprising a midsole and a corrugated sheet. The midsole is formed of soft elastic material. The corrugated sheet is disposed in at least a heel portion of the midsole. Either or both amplitude and wavelength of wave configuration of said corrugated sheet are made different either or both between a front end portion and back end portion, and between an medial portion and lateral portion of said heel portion.

Abstract: A sole of a baseball spiked shoe has a toe portion projection, a first metatarsal head projection, a stepping portion projection, and a fifth metatarsal head projection provided at a fore foot portion at the bottom plane of the shoe sole, and a heel medial projection, a heel anterior projection, a heel posterior projection, and a heel lateral projection provided at the heel portion. Each projection is provided at an appropriate angle with respect to the longitudinal line of the foot.

Abstract: A sole of a baseball spiked shoe has a toe portion projection, a first metatarsal head projection, a stepping portion projection, and a fifth metatarsal head projection provided at a fore foot portion at the bottom plane of the shoe sole, and a heel medial projection, a heel anterior projection, a heel posterior projection, and a heel lateral projection provided at the heel portion. Each projection is provided at an appropriate angle with respect to the longitudinal line of the foot.

Abstract: A sole of a baseball spiked shoe has a toe portion projection, a first metatarsal head projection, a stepping portion projection, and a fifth metatarsal head projection provided at a fore foot portion at the bottom plane of the shoe sole, and a heel medial projection, a heel anterior projection, a heel posterior projection, and a heel lateral projection provided at the heel portion. Each projection is provided at an appropriate angle with respect to the longitudinal line of the foot.

Abstract: By analyzing the force which acts during actual running from a bio mechanical perspective and determining the most preferable positions of spikes on the shoe sole, spikes can be arrayed only in necessary positions and not in unnecessary positions so as to further lessen weight and also provide rigidity to the region wherein spike placement is voided, so as to deal with unwanted flexion of the shoe sole. A shoe sole for spiked track-and-field athletic shoes has spikes located only in positions corresponding to the heads of the metatarsals and in positions corresponding to the distal phalanxes. The shoe sole regions between the spikes arrayed in positions corresponding to the heads of the metatarsals and in positions corresponding to the distal phalanxes are provided with an appropriate rigidity.

Abstract: The present invention relates to the shoe soles of running shoes, particularly to running shoes used in sports in which bursts of speed are required, e.g., the 100-meter footrace or the approach run for the long jump. The object of the invention is to prevent the heel from touching ground during running and thereby prevent a decrease in running efficiency. A shoe sole for running shoes, therefore, has a forefoot portion which is thickly formed so as to allow for fixing of spikes. Behind the forefoot portion, a reinforcing member is provided to fill the region between the ground contact plane which is the same as the forefoot portion and the bottom surface of the last. A lateral rib and a medial rib are provided to the arch region. The lateral rib possesses a gradually inclined plane, the range thereof beginning from the rear edge portion of the reinforcing member provided to the ball region and extending to the front edge portion of the heel region.

Abstract: A sole for spiked track-and-field shoes has a wrap-up portion which extends via a coupling portion from a leading tip of a toe region of the sole proper. Multiple skid-preventing protrusions are fixed onto the toe region of the sole proper, the coupling portion, and the wrap-up portion in a perpendicular manner to the toe region of an underneath part of the sole, a surface of the coupling portion, and a surface of the wrap-up portion, respectively. The skid-preventing protrusions are formed higher than a line which connects the first row of the tips of the spike pins and the tips of the toe portion but lower than the spike pins.