Abstract: A sole structure for a shoe that can secure cushioning properties and obtain a ground surface information is disclosed. The sole structure includes a first midsole having a plurality of first protrusions on a foot-sole-contact side, an outsole having a plurality of second protrusions on a ground surface side, and a second midsole disposed at a part of a region between the first midsole and the outsole and having a lower compressive rigidity than the first midsole. At least a part of the plurality of first protrusions of the first midsole is located at a position corresponding vertically to at least a part of the plurality of second protrusions of the outsole.

Abstract: A bat, which has a hollow barrel and an internal assembly configured to resist deformation of the hollow barrel, is disclosed. The internal assembly includes multiple rods disposed longitudinally within the hollow barrel. The internal assembly can include a deformable ring having a substantially circular outer wall having a diameter less than an inner diameter of the hollow barrel and multiple holes, with each hole configured to at least partially receive a rod of the multiple rods. The bat can have an end cap including end cap holes extending partially through the end cap, with each end cap hole configured to at least partially receive a rod.

Abstract: A bat includes a ball hitting portion. The ball hitting portion includes a plurality of fiber-reinforced resin layers stacked in a radial direction relative to a center axis of the ball hitting portion. The plurality of fiber-reinforced resin layers include a first fiber-reinforced resin layer disposed at an outermost circumference in the radial direction among the plurality of fiber-reinforced resin layers. The first fiber-reinforced resin layer has a plurality of first fiber bundles and a plurality of second fiber bundles. The plurality of first fiber bundles are disposed side by side in a short side direction of each of the plurality of first fiber bundles. The plurality of second fiber bundles are disposed side by side in a short side direction of each of the plurality of second fiber bundles. The plurality of first fiber bundles and the plurality of second fiber bundles are woven across one another.

Abstract: A sole structure 1 includes: a first sole portion including a first sole body and a first connecting portion provided behind the first sole body; a second sole portion disposed behind the first sole portion and including a second sole body and a second connecting portion provided in front of the second sole body; and a connecting shaft provided along a vertical direction to connect the first connecting portion and the second connecting portion together. Either one of the first sole portion or the second sole portion is turnable around the connecting shaft relative to the other one of the first sole portion or the second sole portion in a foot width direction.

Abstract: Provided is processing of allowing an information processor to output characteristic information on at least either sports equipment or a method for using the sports equipment by a user, the information processor executing: image acquisition processing acquiring an image of the sports equipment after use, of the sports equipment with a mark attached, or of an installed tool installed, during use of the sports equipment, on the sports equipment; position identification processing identifying a position likely to be damaged of the sports equipment by performing detection of a color change place, a shape change place, or the mark on the image acquired in the image acquisition processing; and information outputting processing outputting the characteristic information based on the position identified in the position identification processing.

Abstract: A swing analysis device for analyzing a swing of a user of a golf club accepts input of acceleration information, angular rate information, and strain information of a shaft of the golf club, detected by a sensor attached to the shaft, calculates attitude information of the golf club in a swing period, based on the acceleration information and the angular rate information, corrects the attitude information of the golf club at impact, based on the strain information of the shaft, and displays the corrected attitude information of the golf club on a display.

Abstract: A midsole structure of a shoe includes an upper midsole, a lower midsole disposed below the upper midsole, and a wavy sheet interposed between the upper midsole and the lower midsole. The wavy sheet has a wavy shape at its medial and lateral side edge portions and a planar area at its central portion. The lower surface of the upper midsole and the upper surface of the lower midsole have wavy shapes that correspond to the wavy shape of the wavy sheet at their medial and lateral side edge portions and have a planar area that corresponds to the planar area of the wavy sheet at their central portions. The lower surface of the upper midsole and the upper surface of the lower midsole have a plurality of recesses that are disposed in the longitudinal direction at their central portions.

Abstract: A golf club head includes a main body and a weight attached to and detached from the main body. The main body includes a face having a ball striking face, and a sole having a sole surface brought into contact with the ground when striking a ball. The sole has formed thereon a first guide track recessed with respect to the sole surface and having a longitudinal direction and a lateral direction in a plan view. The weight is fixed inside the first guide track. The first guide track includes an attachment/detachment region in which the weight is attached/detached, and a first fixing region and a second fixing region in which the weight is moved in the longitudinal direction and fixed. The first fixing region and the second fixing region are disposed to be contiguous to the attachment/detachment region in the longitudinal direction and sandwich the attachment/detachment region.

Abstract: A stud of an outsole structure includes: a tubular body having a ground contact portion that comes into contact with ground, and a hole passing through the stud upward from the ground contact portion; a core disposed inside the hole and extending vertically; and a plurality of partition walls disposed above the ground contact portion and extending radially from the core toward an inner wall surface of the tubular body. An outsole body has a plurality of locking portions disposed below the partition walls. Each of the locking portions is locked to an associated one of the partition walls in a state in which an upper end portion of the locking portion is in contact with a lower end portion of the associated partition wall.

Abstract: A golf ball includes: a land portion; and a plurality of dimples each provided to be recessed with respect to the land portion. Each of the dimples has a dimple edge and a dimple plane surrounded by the dimple edge. The dimples include a plurality of eccentric dimples each having a deepest portion that is not located on a line connecting a center point of the dimple plane of a corresponding one of the eccentric dimples and a center point of the golf ball. The eccentric dimples have respective dimple axes that are oriented randomly in the golf ball, and each of the dimple axes is obtained in a plan view of the corresponding one of the eccentric dimples by connecting the center point of the dimple plane and the deepest portion of the corresponding one of the eccentric dimples.

Abstract: A garment includes a covering fabric; padding to be filled inside the covering fabric; and quilting stitches. The padding is constituted by polyester staple fibers including fibers having a circular outer peripheral cross section and has an open fiber structure. The fibers constituting the padding have an irregular diameter, and a smoothing agent is fixed to surfaces of the fibers. Thus, it is possible to provide a garment free from problems of uneven distribution of padding and having favorable water removability at the time of washing, quick dryability, and a favorable sliding property between fibers. This garment is suitable as a garment for sports to be washed repeatedly. Further, since the garment can be worn in a puffy state even when wet, it dries quickly by the body heat.

Abstract: In a fastening structure, a third guide member located on the medial side and a third guide member located on the lateral side overlap each other in a foot length direction of footwear as viewed in the foot length direction. A tightening member is guided such that intermediate portions of the tightening member, which are located on the medial and lateral sides, extend in a direction including a component of the foot length direction without crossing each other in a foot width direction of the footwear.

Abstract: In a sole structure of a shoe, each of a first sole portion and a second sole portion is configured such that a first sole body and a second sole body come close to each other and are separated from each other at least in the foot length direction while maintaining a state in which a first connection portion and a second connection portion overlap each other in a vertical direction.

Abstract: Provided is a method for manufacturing an iron golf club head by forging a single round rod member with a pair of dies to form, as a single piece, a body and a neck into which a shaft is to be inserted. The method includes: a first step of heating the single round rod member into a heated material; a second step of placing the heated material in the pair of dies; and a third step of forging the heated material placed in the pair of dies. In the third step, the heated material is prevented from flowing out from parting surfaces of the respective dies at a sole side of the body in the pair of dies, and the heated material blocked at the sole side in the pair of dies flows toward each of a toe of the body and the neck in the pair of dies.

Abstract: In a sole structure, a first projection can be deformed more easily toward a heel than tiptoe in a through hole of a sole component, due to a heel side gap which is formed between an inclined surface of the first projection and a wall of the first through hole located closer to the heel.

Abstract: A bat, which has a hollow barrel and an internal assembly configured to resist deformation of the hollow barrel, is disclosed. The internal assembly includes multiple rods disposed longitudinally within the hollow barrel. The internal assembly can include a deformable ring having a substantially circular outer wall having a diameter less than an inner diameter of the hollow barrel and multiple holes, with each hole configured to at least partially receive a rod of the multiple rods. The bat can have an end cap including end cap holes extending partially through the end cap, with each end cap hole configured to at least partially receive a rod.

Abstract: A sole body includes a groove whose inner wall surfaces can be caused to come close to, and separate from, each other with an adjustment mechanism, and a transformable portion provided in the groove, extending between the inner wall surfaces, and elastically deformable. The transformable portion includes: rising portions which are continuous with the inner wall surfaces and extend in the thickness direction of the sole body while the inner wall surfaces have come close to each other; and a coupling portion for coupling the rising portions to each other at one end. A first cavity is provided between the inner wall surfaces and the rising portions, while a second cavity is provided between the rising portions.

Abstract: A stretchable member includes: a flat base made of a stretchable knitted fabric; and a limiting part extending in a stretching direction of the base, formed integrally with the base while having both ends in a length direction knitted in, and fixed to, the base, and configured to limit stretch of the base. The limiting part is longer than the distance between fixing points at which the limiting part is fixed to the base in an unstretched state, and is made of a knitted fabric which has a flat band shape and which is configured to become slack with respect to the base when the base is in the unstretched state.

Abstract: A tow prepreg manufacturing apparatus applies resin to an original tow of reinforcing fibers. The tow prepreg manufacturing apparatus includes an oiling roller, a scraper, a resin reservoir, a tube pump, and a controller. The oiling roller is supplied with resin while rotating at a predetermined rotation speed. The scraper adjusts the shape of the resin supplied onto the oiling roller. The resin reservoir supplies resin to the oiling roller. The tube pump discharges resin to the resin reservoir. The controller controls the tube pump so that the amount of resin held in the resin reservoir remains constant and controls the rotation speed of the oiling roller so that a resin content of a wound tow prepreg becomes equal to a target resin content.

Abstract: A support is configured such that a bulge is allowed to deform toward a deformation space due to the deformation space when the deformation space is in an open state, and that the bulge is allowed to deform upward and a buffer member is compressively deformed when the deformation space is in a closed state.