A method of testing a tire is employed in an enclosed system having a drum enclosure connected to a tire enclosure by flexible bellows, the enclosed system configured such that a tire inside the tire enclosure abuts a drum inside the drum enclosure. The method includes rotating the drum at a first angular velocity, thereby causing the tire to rotate at the first angular velocity. The method further includes measuring a temperature at a first location adjacent the tire and blowing cool air into the tire enclosure when the measured temperature exceeds a predetermined temperature threshold. The method also includes measuring a humidity level at a second location and adding moisture in the tire enclosure when the measured humidity level falls below a predetermined humidity threshold.

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.

A device for evaluating tire rolling resistance, the device includes: load rolls having surfaces that simulate a road surface on which a tire is to travel; a moving mechanism; a load sensor; a position sensor; a phase difference calculation unit; and a rolling resistance evaluation unit. The load rolls are two or more load rolls disposed side by side and are smaller in diameter than the tire.

The device for rotating and inspecting tires includes a housing having opposed upper and lower surfaces, with a ramp portion of the upper surface being inclined and a support portion of the upper surface having a depression formed therein. A pair of spaced apart slots are formed through the upper surface within the depression. A pair of rollers are mounted within the housing beneath the pair of spaced apart slots. Each of the rollers has an adjustable height such that the pair of rollers may be selectively raised and lowered through the pair of spaced apart slots. The rollers are driven to rotate by motors or the like such that, in use, each tire may be lifted off the upper surface of the housing by raising the rollers, and the rollers may be driven to rotate the tire. Optical sensors are provided to inspect the tire.

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 locking apparatus and locking method for a tire pressure monitoring device. The apparatus comprises a base (1); an electrical appliance control module disposed in the base; a feeder, a pushing assembly (6), a shielding box module (7) and a discharging port (8) arranged on the base (1) in an entering-leaving order of the target tire pressure monitoring device to be locked in the locking process, wherein the shielding box module (7) includes a stepping motor, a lower shielding box (7-1) and an upper shielding box (7-2); the stepping motor is connected to the lower shielding box (7-1) by a screw lifting mechanism; a housing (9) matched with the base (1) is arranged at the upper part of the apparatus; the housing (9) is provided with a control computer; the control computer is connected with an industrial control programmable logic controller PLC.

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 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.

An apparatus configured to be removably attached to a tire/hub assembly of a vehicle via lug nuts of the tire/hub assembly is used to determine imbalance forces of the tire/hub assembly during motion of the vehicle. The apparatus includes a disk and a plurality of cup-shaped objects fixed at one end to the disk and extending perpendicularly outward from the disk. The plurality of cup-shaped objects are arranged a fixed radial distance from a radial center of the disk in a pattern that matches the lug nuts of the tire/hub assembly. The apparatus is mounted to the vehicle's tire/hub assembly by fitting the plurality of cup-shaped objects over the lug nuts of the tire/hub assembly. The apparatus further includes one or more inertial measurement units (IMU's) mounted to the disk to measure parameters that are used for calculating the imbalance forces during motion of the vehicle. A method for collecting measurement parameters related to imbalance forces of a tire/hub assembly of a vehicle during motion of the vehicle on a road surface by using the apparatus is also described.