Abstract: A method for producing a retreaded tire 2 includes a step of shaving a tread 104 from a tire 102, a step of attaching a tag member 30 to a formed surface BD made by shaving the tread 104, and a step of reconstructing a new tread 4. The formed surface BD is located radially outward of a maximum width position of the tire 2. The tag member 30 is located radially inward of an end of a belt 14. An initial vulcanization time t10 of a rubber composition for a protector 34 of the tag member 30 is shorter than an initial vulcanization time t10 of a rubber composition for the new tread 4.

Abstract: A golf club shaft includes a plurality of fiber reinforced resin layers, a tip end, and a butt end. The golf club shaft also includes a plurality of extending portions each having an axial directional length of greater than 25 mm, and a plurality of transition portions each having an axial directional length of less than or equal to 25 mm and each having an outer diameter changing by 0.3 mm or more. Each of the transition portions connects two of the extending portions. The extending portions include at least one intermediate portion connecting two of the transition portions. The number of the transition portions is greater than or equal to 2, and may be greater than or equal to 3. The extending portions may include a tip extending portion and a butt extending portion.

Abstract: A golf club comprises: a pipe-shaped shaft having a space therein and having a first end and a second end; a weight member attached to the shaft on a first end side; and a golf club head attached to the shaft on a second end side. The weight member comprises: a main body portion at least partially disposed in the space of the pipe-shaped shaft; and a flange portion disposed outside the pipe-shaped shaft. The flange portion comprises: a first portion extending in the radial direction of the shaft and having an outer diameter larger than an outer diameter of the shaft at the first end; and a second portion extending in the axial direction of the shaft from the first portion toward the second end so as to cover an outer circumferential surface of the shaft.

Abstract: Provided is a tire structure technology with which sufficient reading performance can be maintained even when a tire having an electronic component provided therein is caused to travel at high speed with severe handling. A pneumatic tire in which an electronic component is provided farther outward in a tire axial direction than a carcass, and in which the E*(1)50° C. at 50° C. and E*(1)150° C. at 150° C. of a first rubber member, and the E*(2)50° C. at 50° C. and E*(2)150° C. at 150° C. of a second rubber member, satisfy the following formula, where the first rubber member is a tire rubber member that has the greatest E* at 50° C. among tire rubber members positioned inward from the electronic component in the tire axial direction, and the second rubber member is a tire rubber member that has the greatest E* at 50° C. among tire rubber members positioned outward from the electronic component in the tire axial direction. (E*(1)50° C./E*(2)50° C.)?(E*(1)150° C./E*(2)150° C.)?1.

Abstract: A head includes a body member that has an opening, and a face member that includes a striking face and closes the opening. The face member includes a face portion that forms the striking face, and a peripheral portion that extends from a peripheral edge of the face portion toward a back side. The peripheral portion of the face member is welded to the body member. A weld bead that juts from the inner surface of the head is formed at a boundary position between the peripheral portion and the body member. A wall thickness at a face-side end point of the weld bead is greater than a wall thickness at a body-side end point of the weld bead. The peripheral portion has a length of less than or equal to 6 mm.

Abstract: An object of the present invention is to provide a golf ball having oily stain washability or weed juice stain resistance that is adjustable depending on a temperature. The present invention provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and covering the golf ball body, wherein a molecular chain of a base resin constituting an outermost layer located at an outermost side of the paint film has a graft chain, and 80 mole % or more of repeating units constituting the graft chain includes any one of repeating units represented by formulae (1) to (4): [In the formulae (1) to (4), R1 to R5 each independently represent hydrogen, halogen or an organic group.].

Abstract: An air pressure monitoring apparatus includes an air pressure acquisition unit, a pressure-adjustment determination unit, and a determination unit. The air pressure acquisition unit acquires data on the air pressure in a tire attached to a vehicle. The pressure-adjustment determination unit determines whether the air pressure in the tire has been adjusted. The determination unit determines whether the tire has a slow puncture based on time-course changes in the data on the air pressure. When the pressure-adjustment determination unit has determined that the air pressure in the tire has been adjusted, the determination unit corrects lastly acquired data on the air pressure and determines whether the tire has a slow puncture based on the corrected data on the air pressure.

Abstract: A tire comprises a tread portion comprising circumferential grooves and land portions divided thereby. The land portions include a first shoulder land portion and a first middle land portion adjacent thereto. The first shoulder land portion is provided with first shoulder sipes. The middle land portion is provided with first middle sipes. Each of the first shoulder sipes and the first middle sipes comprises a main portion extending in the tire radial direction, and a widened portion having a width greater than the main portion and opened at the tread surface of the land portion. The opening width of the first shoulder sipe at the tread surface is larger than the opening width of the first middle sipe at the tread surface.

Abstract: Provided is a tire having high peeling resistance such that an electronic component mounting member unlikely peels off from the surface of the tire even when a large impact is applied on the tire during a high-speed running in a low-temperature environment. In the tire, the electronic component mounting member for incorporating an electronic component is mounted on the surface of a tire inner member, the electronic component mounting member comprises an electronic component storage portion for storing the electronic component and a joint portion having a joint surface for mounting the electronic component mounting member on the surface of the tire inner member, and the complex elastic modulus E*r (MPa) of the joint portion at 0° C. and the complex elastic modulus E*i (MPa) of the tire inner member at 0° C. satisfy the following (formula 1).

Abstract: A pneumatic tire includes a reinforcing filler arranged along a bead core. The reinforcing filler includes an inner portion extending in the tire radial direction, outer portion extending in the tire radial direction, and a middle portion extending in the tire axial direction on the radially inner side of the bead core so as to connect the inner portion and the outer portion. The outer portion has an outer end in the tire radial direction located radially inside an outer end in the tire radial direction of the inner portion and located radially outside a center position of a section height of the bead core in the tire radial direction.

Abstract: A tire state determination system can acquire, from a vehicle, state data including various types of information that may exert influence on deterioration of a base body portion of a tire, can calculate, based on the acquired state data, an evaluation value S indicating a state of the base body portion of the tire, and can determine reusability of the tire based on the evaluation value S.

Abstract: A tire assembly can include a rim and a pneumatic tire. A sound damper can be in a tire inner cavity, defined by an outer surface of the rim and an inner surface of the pneumatic tire, extending in a tire circumferential direction. The rim can have a rim diameter RD not greater than 18 inches. A ratio SH/SW of a cross-sectional height SH to a tire cross-sectional width SW of the pneumatic tire can be 30% to 45%. A ratio RW/SW of a rim width RW of the rim to the tire cross-sectional width SW can be 78% to 99%. The sound damper can include a sponge material adhered to at least one of the outer surface of the rim and the inner surface of the pneumatic tire. The sponge material can have a volume of not less than 0.4% of a total volume of the tire inner cavity.

Abstract: A golf club head includes a loft no less than 40 degrees; a striking face; a virtual center plane that is vertical and perpendicular to a virtual striking face plane and includes a face center; a rear face; and a recess. The recess extends in a heel-to-toe direction along an upper sole surface and has a depth that varies in the heel-to-toe direction such that a first depth corresponds with a first location heel-ward of the face center and a second depth corresponds with a second location toe-ward of the face center, the first depth being no less than 10 mm and greater than the second depth by at least 5 mm. An insert is received in the recess. And a center of gravity of the golf club head is spaced no greater than 5.0 mm from the virtual center plane measured in the heel-to-toe direction.

Abstract: A tire comprises a tread portion including a first land portion provided with axially extending first lateral sipes. The first lateral sipe has a first sipe wall and a second sipe wall, and opens at a ground contacting top surface via a chamfer portion. The chamfer portion comprises a first sloped surface and a second sloped surface respectively connected to the first sipe wall and the second sipe wall. In a top view of the first land portion, the width W1 of the first sloped surface is larger than the width W2 of the second sloped surface.

Abstract: The aqueous adhesive for a tennis ball includes rubber latex. The rubber latex is a mixture of liquid rubber latex and solid rubber latex. When a solid content in the aqueous adhesive is measured at a temperature of 140° C. by a curelastometer, a torque is not less than 0.26 N·m after 10 minutes from start of heating. The tennis ball includes a seam portion formed of the aqueous adhesive for a tennis ball.

Abstract: A tire can include a tread portion and a buttress portion. The tread portion can include a crown region between a tire equator and a middle position and a shoulder region between a first tread ground-contact end and the middle position. The buttress portion can have a land ratio which is a land portion ratio between the first tread ground-contact end and a first position. A land ratio of the shoulder region can be larger than a land ratio of the crown region and the land ratio of the buttress portion.

Abstract: An iron-type golf club head includes a heel, a toe, a top portion, a sole portion, a top portion, a rear portion, and a striking wall. The striking wall includes a striking face having a plurality of scorelines and a face center and a rear surface. A minimum striking wall thickness Tmin is no greater than 2.5 min. A thickened central region of the striking wall has a maximum thickness, Tmax, greater than Tmin but no greater than 2.75. A first thickness T1 of the striking wall corresponds with a first location spaced toe-ward from the face center by a first distance D1 of between 20 mm and 30 mm. A second thickness T2 of the striking wall corresponds with a second location spaced heel-ward from the face center by the first distance D1 such that T1 is greater than T2 by no less than 0.05 mm.