Abstract: A contour CL of a carcass 12 includes a curved portion 44 and an inversely curved portion 46. A boundary between the curved portion 44 and the inversely curved portion 46 is an inflection point PV. A part or an entirety of the curved portion 44 is represented by a first arc. A part or an entirety of the inversely curved portion 46 is represented by a second arc. The first arc and the second arc are tangent to each other at the inflection point PV. A ratio (X/W) of a distance X in an axial direction to a distance W in the axial direction is not less than 70% and not greater than 85%. A ratio (Y/H) of a distance Y in a radial direction to a distance H in the radial direction is not less than 15% and not greater than 22%.

Abstract: A pneumatic tire can include a plurality of recesses arranged in a tire circumferential direction. Each recess can include a sidewall surface extending inward in a tire axial direction from an outer surface of a bead portion, and a bottom surface defining a depth of the recess. In a cross-section of the recess including a tire rotation axis, a sidewall surface located on an outer side in a tire radial direction and the bottom surface can be smoothly connected via an arc portion. The arc portion can have a radius of curvature equal to or larger than the depth of the recess.

Abstract: A contour CL of a carcass 12 includes a curved portion 44 and an inversely curved portion 46. A boundary between the curved portion 44 and the inversely curved portion 46 is an inflection point PV. A part or an entirety of the curved portion 44 is represented by a first arc. A part or an entirety of the inversely curved portion 46 is represented by a second arc. The first arc and the second arc are tangent to each other at the inflection point PV. A ratio (X/W) of a distance X in an axial direction to a distance W in the axial direction is not less than 70% and not greater than 85%. A ratio (Y/H) of a distance Y in a radial direction to a distance H in the radial direction is not less than 15% and not greater than 22%.

Abstract: A pneumatic tire includes a pair of bead portions each having a respective bead core therein, a carcass extending between the bead portions and including a carcass ply that includes a main portion extending between the bead cores and a pair of turn-up portions turned up around the bead cores, and a pair of bead reinforcing layers being disposed outward in the tire axial direction of the turn-up portions so as to cover outermost ends in a tire radial direction of the turn-up portions. An outer surface of at least one of the bead portions is provided with a recess row including a plurality of recesses spaced in a tire circumferential direction, and in the at least one of the bead portions, an outermost end of the bead reinforcing layer is located outwardly in the tire radial direction of outermost ends of the plurality of recesses.

Abstract: A tire 2 has a nominal cross-sectional width not less than 355 mm and a nominal aspect ratio not greater than 70%, and includes a tread 8 having a tread surface 4 that comes into contact with a road surface, and a belt 18 located radially inward of the tread 8. A ratio of a width of the tread surface 4 to a camber amount of the tread surface 4 at an end of the tread surface 4 is not less than 20 and not greater than 30. Regarding a thickness from the belt 18 to the tread surface 4, a ratio of a thickness at an equator plane to a thickness at an end 36 of the belt 18 is not less than 0.95 and not greater than 1.05.

Abstract: A tyre has a tread portion provided with a rib. The rib is provided with a lateral groove extending so as to completely cross the rib. The lateral groove includes a first curved portion and a second curved portion. The first curved portion extends from a first end in a curved shape convex in a first direction in a tyre circumferential direction. The second curved portion extends from the second end in a curved shape convex in a second direction in the tyre circumferential direction. A groove width of the first curved portion is gradually increased over the entire length thereof as it goes toward the first end, or a groove width of the second curved portion is gradually increased over the entire length thereof as it goes toward the second end.

Abstract: A pneumatic tire includes a pair of bead portions each having a respective bead core therein, a carcass extending between the bead portions and including a carcass ply that includes a main portion extending between the bead cores and a pair of turn-up portions turned up around the bead cores, and a pair of bead reinforcing layers being disposed outward in the tire axial direction of the turn-up portions so as to cover outermost ends in a tire radial direction of the turn-up portions. An outer surface of at least one of the bead portions is provided with a recess row including a plurality of recesses spaced in a tire circumferential direction, and in the at least one of the bead portions, an outermost end of the bead reinforcing layer is located outwardly in the tire radial direction of outermost ends of the plurality of recesses.

Abstract: A tire 2 has a nominal cross-sectional width not less than 355 mm and a nominal aspect ratio not greater than 70%, and includes a tread 8 having a tread surface 4 that comes into contact with a road surface, and a belt 18 located radially inward of the tread 8. A ratio of a width of the tread surface 4 to a camber amount of the tread surface 4 at an end of the tread surface 4 is not less than 20 and not greater than 30. Regarding a thickness from the belt 18 to the tread surface 4, a ratio of a thickness at an equator plane to a thickness at an end 36 of the belt 18 is not less than 0.95 and not greater than 1.05.

Abstract: A field device includes one or more processors configured to perform a first processing with reference to safety-critical data and a second processing with reference to safety-uncritical data which is less critical than the safety-critical data, wherein the one or more processors are configured to generate a first request for storing the safety-critical data in the second processing, store the safety-critical data into a storage unit in the first processing in accordance with the first request, and store the safety-uncritical data into the storage unit in the second processing.

Abstract: A tyre has a tread portion provided with a rib. The rib is provided with a lateral groove extending so as to completely cross the rib. The lateral groove includes a first curved portion and a second curved portion. The first curved portion extends from a first end in a curved shape convex in a first direction in a tyre circumferential direction. The second curved portion extends from the second end in a curved shape convex in a second direction in the tyre circumferential direction. A groove width of the first curved portion is gradually increased over the entire length thereof as it goes toward the first end, or a groove width of the second curved portion is gradually increased over the entire length thereof as it goes toward the second end.

Abstract: A field device includes one or more processors configured to perform a first processing with reference to safety-critical data and a second processing with reference to safety-uncritical data which is less critical than the safety-critical data, wherein the one or more processors are configured to generate a first request for storing the safety-critical data in the second processing, store the safety-critical data into a storage unit in the first processing in accordance with the first request, and store the safety-uncritical data into the storage unit in the second processing.