Abstract: A rubber composition excellent in air permeation resistance and improved in flexure failure resistance, and a weight-saving pneumatic tire excellent in air permeation resistance and improved in flexure failure resistance in which the rubber composition is used as the inner liner therein is provided. The rubber composition contains, relative to 100 parts by mass of the rubber ingredient (A) therein, from 1 to 9 parts by mass of carbon black (B) and from 80 to 150 parts by mass of a layered or platy clay mineral (C).

Abstract: The present invention provides a rubber composition exhibiting good workability and suitable for use in an inner liner of a tire. Specifically, the present invention provides a rubber composition, comprising: a rubber component; an inorganic filler having an aspect ratio of 2 to 200; and optionally at least one of carbon black and a metal salt of aliphatic acid, wherein contents of the inorganic filler, the carbon black and the metal salt of aliphatic acid satisfy following formula (1): C?0.016×(A?0.5×B)?1.18??(1) In formula (1), “A” represents a content (parts by mass) of the inorganic filler with respect to 100 parts by mass of the rubber component, “B” represents a content (parts by mass) of the carbon black with respect to 100 parts by mass of the rubber component, and “C” represents a content (parts by mass) of the metal salt of aliphatic acid with respect to 100 parts by mass of the rubber component.

Abstract: The present invention provides a rubber composition exhibiting good workability and suitable for use in an inner liner of a tire. Specifically, the present invention provides a rubber composition, comprising: a rubber component; an inorganic filler having an aspect ratio of 2 to 200; and optionally at least one of carbon black and a metal salt of aliphatic acid, wherein contents of the inorganic filler, the carbon black and the metal salt of aliphatic acid satisfy following formula (1): C?0.016×(A?0.5×B)?1.18 ??(1) In formula (1), “A” represents a content (parts by mass) of the inorganic filler with respect to 100 parts by mass of the rubber component, “B” represents a content (parts by mass) of the carbon black with respect to 100 parts by mass of the rubber component, and “C” represents a content (parts by mass) of the metal salt of aliphatic acid with respect to 100 parts by mass of the rubber component.

Abstract: A rubber composition excellent in air permeation resistance and improved in flexure failure resistance, and a weight-saving pneumatic tire excellent in air permeation resistance and improved in flexure failure resistance in which the rubber composition is used as the inner liner therein is provided. The rubber composition contains, relative to 100 parts by mass of the rubber ingredient (A) therein, from 1 to 9 parts by mass of carbon black (B) and from 80 to 150 parts by mass of a layered or platy clay mineral (C).

Abstract: A tire casing wherein when a distance from an end part of the tread member joint surface to an end part of the bottom surface of the bead part along the surface of the sidewall part is defined to be 1, the tire casing has a side rubber member (A) extending in a proportion of from 0.09 to 0.30 of the distance along the surface of the sidewall part from the end part of the tread joint surface, and side rubber member (A) contains 100 parts by mass of a rubber component comprising at least one or more selected from the group consisting of a natural rubber, a synthetic isoprene rubber, a polybutadiene rubber, and a styrene-butadiene copolymer rubber, and from 40 to 100 parts by mass of carbon black having a nitrogen adsorption specific surface area (N2SA, as measured according to JIS K6217-2:2001) of from 70 to 150 m2/g.

Abstract: In the method for producing a tire casing of the present invention by vulcanizing a casing portion comprising a belt portion composed of multiple belt layers, a side portion and a bead portion and also comprising at least any one of a tread casing and a belt under-cushion rubber, a rubber composition containing carbon black having a nitrogen adsorption specific surface area of from 25 to 130 m2/g as defined in JIS K 6217-2:2001 in an amount of from 25 to 45 parts by mass per 100 parts by mass of the rubber component therein is used as at least the rubber composition constituting the tread casing to be a part of the tread portion or the rubber composition constituting the belt under-cushion rubber, and accordingly, the rolling resistance of the tire can be reduced and the durability thereof can be improved.

Abstract: The present invention is a method for producing a tire casing by vulcanizing a casing portion comprising a belt portion composed of multiple belt layers, a side portion and a bead portion, and the method includes at least one method selected from the following (a) and (b). The invention also provides a production method for a tire casing and a tire having improved low-heat-generation property and durability. Method (a) in which a rubber composition containing carbon black having a nitrogen adsorption specific surface area of from 38 to 99 m2/g as defined in JIS K 6217-2:2001, in an amount of from 40 to 60 parts by mass relative to 100 parts by mass of the rubber component therein is used as the belt wedge rubber of the belt portion.

Abstract: To provide a direction indicator of a compact design effective to secure brightness and visibility during the blinking operation of the direction indicator, the direction indicator (9 or 11) includes an indicator body (92) adapted to be mounted on a vehicle body structure (FR), a lens member (93) mounted on the indicator body (92), a light emitter (12) and a reflector (13) positioned inwardly of the lens member (93), the reflector (13) reflecting an illuminating light, emitted from the light emitter (12), towards an intended area. A plane of joint (92b, 93b) between the indicator body (92) and the lens member (93) is inclined relative to a widthwise direction of the vehicle body structure (FR), and the lens member (93) has a laterally outer vertex portion (93a) protruding laterally outwardly from a position of a laterally outer vertex portion (92a) of the indicator body (92).

Abstract: To provide a direction indicator of a compact design effective to secure brightness and visibility during the blinking operation of the direction indicator, the direction indicator (9 or 11) includes an indicator body (92) adapted to be mounted on a vehicle body structure (FR), a lens member (93) mounted on the indicator body (92), a light emitter (12) and a reflector (13) positioned inwardly of the lens member (93), the reflector (13) reflecting an illuminating light, emitted from the light emitter (12), towards an intended area. A plane of joint (92b, 93b) between the indicator body (92) and the lens member (93) is inclined relative to a widthwise direction of the vehicle body structure (FR), and the lens member (93) has a laterally outer vertex portion (93a) protruding laterally outwardly from a position of a laterally outer vertex portion (92a) of the indicator body (92).