A hockey-stick blade includes a heel region, a toe region spaced longitudinally from the heel region, and a mid-region located between the heel region and the toe region. The toe region includes one or more reinforcing elements, optionally of different lengths, located at different vertical positions within the toe region. The blade further includes a hosel that optionally is tailored to substantially match the strength and stiffness characteristics of an attached or integral hockey stick shaft. The mid-region of the blade exhibits improved feel and flexibility characteristics due to the increased stiffness in the toe region.

A golf club head comprising a crown with an edge support structure and a flexible, conformal weight sized to fit within the edge support structure is disclosed herein. The edge support structure preferably is disposed on an internal surface of the crown so that the conformal weight is invisible when the golf club head is viewed at address. The conformal weight can be removed to adjust the vertical center of gravity of the club head, and preferably is oriented in a front-to-back direction along the club head's X-axis. The conformal weight preferably is composed of a high-density polymeric material with a specific gravity ranging from 1.8 to 4.2.

An information processing device includes: a displacement information acquisition unit that acquires displacement information corresponding to 3-dimensional displacement of a predetermined portion of an object that a user mounts in accordance with a body motion on the basis of positional information of the predetermined portion and an output control unit that performs control such that an output unit performs a predetermined output on the basis of the acquired displacement information. The object has, for example, a seatback on which a user can sit. The displacement information acquisition unit acquires a change in a position in at least one of front and rear directions, right and left directions, or upward and downward directions of a seatback.

An object of the present invention is to provide a novel fiber-reinforced epoxy resin material having improved strength. The fiber-reinforced epoxy resin material of the present invention comprises a cured product of an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises a novolac type epoxy resin as an epoxy resin component, and the cured product of the epoxy resin composition has a swelling ratio in a range from 20 mass % to 44 mass % in methyl ethyl ketone.

A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.

The present invention relates to a ball game racket frame with a head portion and a handle portion, wherein the ball game racket frame comprises a fiber composite with at least one multi-fiber roving that is at least partially twisted.

A golf club head including a striking face, a sole extending aft from the striking face, a crown extending aft from the striking face, a skirt extending between the sole and the crown, an interior cavity defined by the striking face, the sole, the crown, and the skirt, an aperture formed through the sole, the aperture having an aperture length and an aperture width, wherein the aperture length is substantially larger than the aperture width, and a stiffening member affixed to the sole, wherein a portion of the stiffening member resides within the aperture, wherein the sole is constructed of a first material having a first density, the stiffening member is constructed of a second material having a second density, and wherein the second density is at least 30% less than the first density.

A golf club head is formed by joining various parts to a head shell made of metal and having a hollow structure. The head shell has a region where a face and a sole are continuous with each other, thereby forming a leading edge between the face and the sole. The sole of the head shell is provided with a concave slot along the leading edge. The slot is configured to bend in a target direction upon hitting a ball with the face. A reinforcing member made of fiber reinforced plastic configured to apply a resistance to bending of the slot is attached in the slot. The slot has a thickness of, for example, about 0.8 mm to 1.3 mm and has a cross-sectional shape forming a parabola. The reinforcing member has a thickness of, for example, about 10% to 20% of the width of the slot in the target direction.

A reformer exercise apparatus is disclosed that has a generally rectangular frame, a carriage movably supported on the frame, and a foot support member supported by the side rail portions of the frame. The foot support member has an inverted U shape carbon fiber tube having ends each fixed to a foot bar support member having a cylindrical base, a cylindrical post welded to the base, and a foot bar support arm welded to one end of the cylindrical base, for connection to a foot support assembly operable to selectively position the foot support member at various positions along the side rail portions of the frame.

A golf club includes a face coupled to a body. A composite axis extends from a heel to a toe of the club and parallel to ground. The face is formed of a fiber composite material including at least first and second sets of ply arrangements. Each of the ply arrangements includes a pair of plies having first and second pluralities of fibers defining first and second angles with respect to the composite axis, respectively. The face has a ball contact surface, an rear surface, and a mid-zone positioned equidistant between the contact and rear surfaces. A majority of the first and second pluralities of fibers of the ply arrangements between the mid-zone and the contact surface are formed of glass fibers, and a majority of the first and second pluralities of ply arrangements between the mid-zone and the rear surface are formed of carbon fibers.