A rotating body load measuring device according to the present invention includes: a first support section which supports one end portion of a shaft body, which protrudes from one end face of a rotating body, so as to be immovable in a first direction and a second direction along a central axis; a second support section which supports the other end portion of the shaft body, which protrudes from the other end face of the rotating body, so as to be immovable in the first direction and movable in the second direction; and a measuring part capable of measuring a force acting in the first direction on at least one of the first support section and the second support section from the shaft body and capable of measuring a force acting in the second direction on the first support section from the shaft body.

This invention relates to a tyre support device comprising an inclined structure with means for supporting and rotating a tyre at a controlled speed on its axis, avoiding vibrations and deformation thereof during rotation.

A testing machine for rotating test specimens includes a frame and a roadway assembly. The roadway assembly includes an endless belt that provides a surface for engaging the test specimen and is supported by and rolls on rollers. An endless support member supported by the frame is disposed between the rollers and engages the endless belt from below. The endless support member moves with or is synchronized so as to have a velocity the same as the endless belt. The endless support member provides a flat reaction structure for loads from the test specimen placed on the endless belt and is of size corresponding to that needed by the contact patch of the test specimen upon the endless belt. Since the endless support member moves at the same velocity as the endless belt no forces are generated between the endless support member and the endless belt.

A method for checking tyres, includes: arranging a tyre in a station for checking tyres; moving a sensor within the tyre; performing first checks on an inner surface of the tyre with the at least one sensor; engaging a radially outer portion of the tyre with grip elements of an overturning device; extracting the sensor from the tyre and spacing the sensor from the tyre; overturning the tyre by 180° by rotation of the grip elements; moving again the sensor within the tyre; performing second checks on the inner surface of the tyre with the sensor; extracting again the sensor from the tyre and spacing the sensor from the tyre; and transporting the tyre outside the station for checking tyres.

A tire inspection device includes a gas sensor disposed outside of a tire and facing an outer surface of the tire. The gas sensor detects a gas that fills the tire.

Testing the rolling resistance of a tire is a common procedure in tire testing. There is a tire testing machine 1 suggested, comprising a rolling device 4, a tire mounting device 3 and a driving assembly 2, whereby the driving assembly 2 is operable to rotate the rolling device 4 and/or the tire mounting device 3 according to a configurable driving cycle, whereby the rolling device 4 has a drum 5 with an outer peripheral surface 7, whereby the tire 14 is rotatable mountable on the tire mounting device 3, whereby the tire mounting device 3 is arranged that the tire 14 is engaged with the outer peripheral surface 7 of the drum 5, with a first torque measuring assembly 12, a second torque measuring assembly 18, and an angular velocity measuring assembly 12, whereby the first torque measuring assembly 12 is operable to measure a drum drive torque of the drum 5 and the second torque measuring assembly 18 is operable to measure a tire drive torque of the tire (14), whereby the angular velocity measuring assembly 12 is operable to measure and/or calculate the angular velocity of the tire ω.sub.T and the angular velocity of the drum ω.sub.D.

A tire testing device includes a road surface, a carriage capable of traveling along the road surface in a state where a test tire is in contact with the road surface, and a guide mechanism configured to guide movement of the carriage. The guide mechanism includes a rail, and a runner. The runner includes a first roller that rolls on an upper surface of a head of the rail, and a second roller that rolls on a lower surface or a side surface of the head of the rail. The tire testing device includes a first guide mechanism and a second guide mechanism. In the first guide mechanism, the rollers except for the first roller are disposed only on one side of the rail, and in the second guide mechanism, the rollers except for the first roller are disposed only on an other side of the rail.

A tire testing method includes: applying a lubrication solution to a bead part of a tire; detecting a phase of a reference point of the tire; detecting a phase of a rotation origin of a spindle at common coordinates shared with coordinates at which the phase of the reference point is indicated; detecting a singular point present on the tire by conducting a tire test while rotating the tire on the spindle, and detecting a phase from the rotation origin to the singular point; calculating a phase from the reference point to the singular point based on the phase of the reference point, the phase of the rotation origin, and the phase from the rotation origin to the singular point; storing information about the reference point and information about the rotation origin at the common coordinates; and marking the tire at a position where the singular point is present.

A tire testing device includes a vehicle, and a test unit provided in the vehicle and capable of supporting a test wheel on which a test tire is mounted in a state in which the test wheel is in contact with a road surface. The test unit includes a power unit configured to output power for rotationally driving the test wheel. The power unit includes a rotation output unit configured to output a rotational motion of a rotation speed corresponding to a traveling speed of the vehicle, and a torque applying unit configured to add torque to the rotational motion to output the torque, the rotation output unit includes a driven wheel configured to contact a road surface, a first axle coupled to the driven wheel, and a first transmission mechanism configured to couple the first axle to an input shall of the torque applying unit.

A rim replacing mechanism includes a pressing member including a spring and a body having a pressing surface applying downward pressing force to an upper surface of an upper rim, and an actuator configured to vertically displace the body within a range including an upper position and a lower position. As to the lower position, the body is configured to shift downward toward the lower position while the pressing surface of the body is applying the downward pressing force to the upper surface of the upper rim, to dispose the upper surface of the upper rim to be separated downward from a lower surface of an upper spindle. The spring is configured to apply downward pressing force to the body disposed at the lower position.