Abstract: The present invention provides a rubber composition for tires which provides a balanced improvement of physical properties including fuel economy, tensile strength, and abrasion resistance while achieving good processability. Also provided is a pneumatic tire formed from the rubber composition. The rubber composition for tires contains: an isoprene-based rubber; and a polybutadiene rubber mixture consisting of a high molecular weight polybutadiene rubber having a cis content of 95% by mass or more and a peak top molecular weight Mp of 550,000 or more and a low molecular weight polybutadiene rubber having a cis content of 95% by mass or more and a peak top molecular weight Mp of 500,000 or less. The rubber component in the rubber composition includes, based on 100% by mass thereof, 60 to 90% by mass of the isoprene-based rubber and 10 to 40% by mass of the polybutadiene rubber mixture.

Abstract: Provided are a rubber composition for tires having low tan ? at approximately 60° C. and excellent breaking energy at approximately 25° C.; a method for preparing the rubber composition for tires; and a tire thereof.

Abstract: A drive apparatus, including: a first rotary member; a second rotary member, which is provided with an axle hole, and which receives drive power from the first rotary member or transmits drive power to the first rotary member; an axle member, which is inserted into the axle hole and engages with the first rotary member so as to transmit drive power between the first rotary member and the second rotary member; and a coupling member for coupling the first rotary member and the second rotary member; wherein the coupling member is provided with a sliding portion which is disposed between the first rotary member and the second rotary member in the radial direction and which slides over either one of the first rotary member and the second rotary member when the first rotary member and the second rotary member rotate integrally with each other via the axle member.

Abstract: A drive apparatus, including: a first rotary member; a second rotary member, which is provided with an axle hole, and which receives drive power from the first rotary member or transmits drive power to the first rotary member; an axle member, which is inserted into the axle hole and engages with the first rotary member so as to transmit drive power between the first rotary member and the second rotary member; and a coupling member for coupling the first rotary member and the second rotary member; wherein the coupling member is provided with a sliding portion which is disposed between the first rotary member and the second rotary member in the radial direction and which slides over either one of the first rotary member and the second rotary member when the first rotary member and the second rotary member rotate integrally with each other via the axle member.

Abstract: A drive apparatus, including: a first rotary member; a second rotary member, which is provided with an axle hole, and which receives drive power from the first rotary member or transmits drive power to the first rotary member; an axle member, which is inserted into the axle hole and engages with the first rotary member so as to transmit drive power between the first rotary member and the second rotary member; and a coupling member for coupling the first rotary member and the second rotary member; wherein the coupling member is provided with a sliding portion which is disposed between the first rotary member and the second rotary member in the radial direction and which slides over either one of the first rotary member and the second rotary member when the first rotary member and the second rotary member rotate integrally with each other via the axle member.

Abstract: A drive apparatus, including: a first rotary member; a second rotary member, which is provided with an axle hole, and which receives drive power from the first rotary member or transmits drive power to the first rotary member; an axle member, which is inserted into the axle hole and engages with the first rotary member so as to transmit drive power between the first rotary member and the second rotary member; and a coupling member for coupling the first rotary member and the second rotary member; wherein the coupling member is provided with a sliding portion which is disposed between the first rotary member and the second rotary member in the radial direction and which slides over either one of the first rotary member and the second rotary member when the first rotary member and the second rotary member rotate integrally with each other via the axle member.

Abstract: A vessel equipped with a single screw comprising a propeller shaft positioned on the vertical hull center plane, an upper deck portion which is substantially symmetrical with respect to the vertical hull center plane, and a stern portion having a longitudinal plane passing through a stern end of the vessel. The longitudinal plane of the stern portion is positioned laterally offset from the vertical hull center plane by 5 to 25% of a diameter of a propeller disc plane. The longitudinal plane of the stern portion is positioned on the port side when the propeller shaft is rotated clockwise. The longitudinal plane of the stern portion is positioned on the starboard side when the propeller shaft is rotated counterclockwise.

Abstract: A vessel equipped with a single screw, comprising a hull which is symmetrical with regard to a vertical center plane containing the center line of the hull, and a propeller shaft which is positioned laterally offset from the vertical center plane of the hull. The propeller shaft is positioned such that a ratio (d/D) is from 5 to 25%, where d represents a distance between the propeller shaft and the vertical center plane of the hull, and D represents the diameter of the propeller.