Kobe Steel, Ltd.

Takashi Sumitani

Yu Sumimoto

Toru Okada

Shogo Sarumaru

Masao Murakami

Takayuki Fukuda

Naofumi Kanei

Yoshiaki Matsubara

Munenori Soejima

Mikio Kato

Maiko Nakayama

Hikaru Hamada

Jumpei Fukuda

A tire testing machine is for testing a tire, comprising a free roller section configured to include a plurality of rollers having an endmost roller disposed downstream of a lubricator in a conveying direction and farthest from a predetermined reference position, the endmost roller being disposed such that a horizontal distance from the reference position is equal to or greater than a radius of a largest of a plurality of tires set in advance as objects of application of a lubricant.

Tire tester machine having a lubricator in a conveying direction

The calibration method for a multi-component force detector is a calibration method for a multi-component force detector provided in a rolling resistance testing machine comprising a spindle to which a tire is mounted, and a traveling drum having a simulated traveling road surface against which the tire is pressed, wherein when processing for calculating force acting on the tire from the measurement value of the multi-component force detector using a crosstalk correction factor for correcting the influence of crosstalk occurring in the multi-component force detector is performed, a test is conducted using at least one or more reference tire the rolling resistance value of which is already known, and the crosstalk correction factor is calibrated using 'rolling test data' composed of force measured by the multi-component force detector during the test using the reference tire, and the rolling resistance value of the reference tire used for the measurement.

Calibration method for multi-component force detector provided in rolling resistance testing machine

Disclosed is a multi-component force measurement spindle unit that accurately measures forces and moments applied to a tire in a tire testing machine. The multi-component force measurement spindle unit of a tire testing machine includes: a spindle shaft on which a tire can be mounted; an inner sleeve that rotatably supports the spindle shaft via a bearing part; an outer sleeve arranged on an outside of the inner sleeve along an axial center direction of the spindle shaft; a multi-component force measurement sensor that connects an end of the inner sleeve and an end of the outer sleeve to each other and is capable of measuring a load acting on the outer sleeve from the inner sleeve; and a cooling part that cools the inner sleeve.

Multi-component force measurement spindle unit of tire testing machine

Disclosed is a tire tester () provided with: a device frame (); a slide base () provided on the device frame () so as to be able to move up and down; a large spindle () that is attached to the slide base () and can rotatably support a large-diameter tire (T); and a small spindle () that is attached to the slide base () and can rotatably support a small-diameter tire (T) that is smaller than the large-diameter tire (T). The disclosed tire tester () can push one of the tires (Tor T) against a simulated road surface (), by means of the up/down movement of the slide base (), and perform a tire test.

Tire tester

A rim mounting device configured in such a manner that, even if a permanent magnet breaks due to impact produced during mounting thereof by magnetic attraction, the rim mounting device can be handled easily after the breakage of the permanent magnet. The rim mounting device is provided to a tire testing device having a spindle for rotating a tire and is adapted that a rim is mounted to the tip of the spindle. The rim mounting device is provided with: a rim mounting section provided to the tip of the spindle, having a rim mounting surface capable of making contact with the rim, and having mounting recesses formed in the rim mounting surface so as to be arranged side by side; permanent magnets inserted in the mounting recesses, respectively, and generating magnetic force for attracting the rim to the rim mounting surface; and scatter suppressing members. The scatter suppressing members are provided in the mounting recesses, respectively, and when the permanent magnet inserted in each mounting recess breaks, suppress scatter of fragments of the permanent magnet.

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Takasago, Japan

Takashi Sumitani