Abstract: A pneumatic tire comprises a tread portion, a pair of bead portions and a pair of sidewall portions, and at least one of the sidewall portions is provided with at least three strain sensors disposed at least three circumferentially different mounting positions, respectively. The at least three strain sensors are oriented at angles ? with respect to tire radial directions at the respective mounting positions. The orientation angles ? of at least two of the at least three strain sensors are different from one another and their difference(s) is(are) not less than 20 degrees in absolute value.

Abstract: A system and method for determining the magnitude of a force acting on a tire are disclosed. Further, a sensor and a tire suitable for use in the system and method are also disclosed. The system comprises: a tire strain sensor mounted on the tire, for detecting a tire strain at the mounted position, and generating data representing tire strain; a sensor locator for locating the sensor on the tire; a memory in which data on the relationship between the tire strain and force acting on the tire at each of measuring points are stored; and a processor computing the magnitude of the force, using the data representing tire strain obtained from the tire strain sensor and the data on the relationship acquired from the memory based on the data on the sensor location obtained from the sensor locator.

Abstract: An apparatus for detecting a longitudinal force of a tire is provided with at least one mark (3) provided in on one circumferential line (j) in a tire (2), a first sensor (5) disposed in a vehicle body side (4) and capable of detecting a passage of the mark (3), a second sensor (7) capable of detecting a rotation angle (?) of an axle (6), and a computing device (8) for computing a longitudinal force (Fr) of the tire (2) on the basis of an information of the first and second sensors (5, 7). The computing device (8) sequentially stores a rotation angle (?r) of the axle (6) when the mark (3) passes through the first sensor (5).

Abstract: A system and method for determining the magnitude of a force acting on a tire are disclosed. Further, a sensor and a tire suitable for use in the system and method are also disclosed. The system comprises: a tire strain sensor mounted on the tire, for detecting a tire strain at the mounted position, and generating data representing tire strain; a sensor locator for locating the sensor on the tire; a memory in which data on the relationship between the tire strain and force acting on the tire at each of measuring points are stored; and a processor computing the magnitude of the force, using the data representing tire strain obtained from the tire strain sensor and the data on the relationship acquired from the memory based on the data on the sensor location obtained from the sensor locator.

Abstract: A velocity-changing apparatus of the present invention includes: a drum 3 for transporting the continuous web W1 at a transport velocity which is generally equal to a circumferential velocity V(?) of the drum 3 while changing the circumferential velocity V(?) periodically at least once per one rotation of the drum 3; a movable member 2 disposed upstream of the drum 3 for feeding the continuous web W1 to the drum 3,; and a cutter 4 for cutting, on the drum 3, the continuous web W1 being transported at the transport velocity which is generally equal to the circumferential velocity V(?) of the drum 3. The movable member 2 moves according to the change of the circumferential velocity V(?) of the drum 3 so that a feed velocity at which the continuous web W1 is fed to the drum 3 is generally equal to the transport velocity of the continuous web W1 being transported by the drum 3.

Abstract: An apparatus for detecting a longitudinal force of a tire is provided with at least one mark (3) provided in on one circumferential line (j) in a tire (2), a first sensor (5) disposed in a vehicle body side (4) and capable of detecting a passage of the mark (3), a second sensor (7) capable of detecting a rotation angle (?) of an axle (6), and a computing means (8) for computing a longitudinal force (Fr) of the tire (2) on the basis of an information of the first and second sensors (5, 7). The computing means (8) sequentially stores a rotation angle (?r) of the axle (6) when the mark (3) passes through the first sensor (5).

Abstract: A subframe structure for an automotive vehicle wherein a subframe is attached through a rubber mount to a vehicle body, suspension components are assembled onto the subframe so that the suspension components are held connected to the vehicle body through the subframe, and a detecting assembly capable of providing an output signal according to a load that acts between a subframe and a vehicle body is provided. A rubber mount for use in this subframe structure is also disclosed.

Abstract: A system and method for determining the magnitude of a force acting on a tire are disclosed. Further, a sensor and a tire suitable for use in the system and method are also disclosed. The system comprises: a tire strain sensor mounted on the tire, for detecting a tire strain at the mounted position, and generating data representing tire strain; a sensor locator for locating the sensor on the tire; a memory in which data on the relationship between the tire strain and force acting on the tire at each of measuring points are stored; and a processor computing the magnitude of the force, using the data representing tire strain obtained from the tire strain sensor and the data on the relationship acquired from the memory based on the data on the sensor location obtained from the sensor locator.

Abstract: A studless tire with a tread pattern comprising blocks that are defined by longitudinal and transverse grooves and having at least one row of blocks that extends in the peripheral direction of the tire. The peripheral rows of blocks are such that at least one sub-block is provided within one pitch of the tread pattern outside an adjacent block in the tire's rotating axle. And the sub-block is separated from the block by a sub-groove less deep than the longitudinal and transverse grooves and has the longer side in the peripheral direction and the shorter side in the direction of the rotating axle.

Abstract: A studless tire with a tread pattern comprising blocks that are defined by longitudinal and transverse grooves and having at least one row of blocks that extends in the peripheral direction of the tire. The peripheral rows of blocks are such that at least one sub-block is provided within one pitch of the tread pattern outside an adjacent block in the tire's rotating axle. And the sub-block is separated from the block by a sub-groove less deep than the longitudinal and transverse grooves and has the longer side in the peripheral direction and the shorter side in the direction of the rotating axle.