Abstract: The present invention is a driving control method of a tire testing machine provided with a controller for giving a rotation command to a tire driving electric motor so that a slippage ratio of a tire with respect to movement of a simulated road surface is a preliminarily fixed value, and changing rotation speed of the tire, the method comprising: estimating longitudinal force imposed on the tire in accordance with the slippage ratio of the tire in a case where the rotation command is given; determining a torque limitation value for the tire driving electric motor based on an estimated longitudinal force estimate value; and applying the torque limitation value to torque limitation of the tire driving electric motor when the rotation command is given so as to change the rotation speed of the tire. With such a configuration, in a case where a tire test is performed while changing the slippage ratio, it is possible to perform the test without imposing excessive overloads on the tire driving electric motor.

Abstract: A tire shape detecting apparatus includes a projector that applies a plurality line light beams in a continuously joined manner, from a direction different from the detection height direction (Z-axis direction) in one light section line, or that applies one line light beam in a condensed manner in the line length direction thereof in order that the one light section line may be formed on the one line Ls on the surface of the tire; and a camera for picking up images of the plurality of line light beams applied to the tire surface in the direction in which the principal ray of each of the plurality of line light beams performs specular reflection with respect to the tire surface, or in the direction in which the principal ray of the condensed one line light beam performs specular reflection with respect to the tire surface.

Abstract: The present invention is a driving control method of a tire testing machine provided with a controller for giving a rotation command to a tire driving electric motor so that a slippage ratio of a tire with respect to movement of a simulated road surface is a preliminarily fixed value, and changing rotation speed of the tire, the method comprising: estimating longitudinal force imposed on the tire in accordance with the slippage ratio of the tire in a case where the rotation command is given; determining a torque limitation value for the tire driving electric motor based on an estimated longitudinal force estimate value; and applying the torque limitation value to torque limitation of the tire driving electric motor when the rotation command is given so as to change the rotation speed of the tire. With such a configuration, in a case where a tire test is performed while changing the slippage ratio, it is possible to perform the test without imposing excessive overloads on the tire driving electric motor.

Abstract: A tire shape detecting apparatus includes a projector that applies a plurality line light beams in a continuously joined manner, from a direction different from the detection height direction (Z-axis direction) in one light section line, or that applies one line light beam in a condensed manner in the line length direction thereof in order that the one light section line may be formed on the one line Ls on the surface of the tire; and a camera for picking up images of the plurality of line light beams applied to the tire surface in the direction in which the principal ray of each of the plurality of line light beams performs specular reflection with respect to the tire surface, or in the direction in which the principal ray of the condensed one line light beam performs specular reflection with respect to the tire surface.

Abstract: The present invention is intended to provide a teaching playback swing-phase-controlled above knee prosthesis which enables an external data setting to set the mechanism of the teaching playback swing-phase-controlled above knee prosthesis for conditions that enable the mechanism to operate for motions according to a walking speed. The teaching playback swing-phase-controlled above knee prosthesis includes a structural body having a thigh frame and a leg frame pivotally joined to the thigh frame for swing motion relative to the thigh frame, an air cylinder having a cylinder body, a piston axially slidably fitted in the cylinder body and provided with a valve, and a piston rod having one end fixed to the piston and the other end pivotally joined to the thigh frame, and a stepping motor for adjusting the opening of the valve of the cylinder.

Abstract: A teaching playback swing-phase-controlled above-knee prosthesis comprises a thigh frame, a leg frame, an air cylinder interconnecting the thigh and leg frames and provided with adjusting means for adjusting the degree of opening the valve of the air cylinder to a plurality of degrees respectively for a plurality of walking speeds selected during trial walking, a mode selecting switch having positions respectively for setting degrees of opening of the valve of the air cylinder in a teaching mode and for a playback mode in which one of the degrees of opening is selected according to an actual walking speed, an opening detector for detecting the degree of opening of the valve of the air cylinder, an opening storage device for storing a plurality of set degrees of opening of the valve of the air cylinder, a phase detector for detecting swing phases and stance phases, walking speed detector for detecting an actual walking speed, and control unit for adjusting the degree of opening of the valve of the air cylinder

Abstract: A teaching playback swing-phase-controlled above-knee prosthesis comprises a thigh frame, a leg frame an air cylinder interconnecting the thigh and leg frames and provided with adjusting means for adjusting the degree of opening the valve of the air cylinder to a plurality of degrees respectively for a plurality of walking speeds selected during trial walking, a gait selecting switch having positions respectively for setting degrees of opening of the valve of the air cylinder in a teaching mode and for playback mode in which one of the degrees of opening is selected according to an actual walking speed, an opening detector for detecting the degree of opening of the valve of the air cylinder, an opening storage device for storing a plurality of set degrees of opening of the valve of the air cylinder, a phase detector for detecting swing phases and stance phases, walking speed detector for detecting an acutal walking speed, and control unit for adjusting the degree of opening of the valve of the air cylinder in

Abstract: A teaching playback swing-phase-controlled above-knee prosthesis comprises a thigh frame, a leg frame, an air cylinder interconnecting the thigh and leg frames and provided with adjusting means for adjusting the degree of opening the valve of the air cylinder to a plurality of degrees respectively for a plurality of walking speeds selected during trial walking, a mode selecting switch having positions respectively for setting degrees of opening of the valve of the air cylinder in a teaching mode and for a playback mode in which one of the degrees of opening is selected according to an actual walking speed, an opening detector for detecting the degree of opening of the valve of the air cylinder, an opening storage device for storing a plurality of set degreess of opening of the valve of the air cylinder, a phase detector for detecing swing phases and stance phases, walking speed detector for detecting an actual walking speed, and control unit for adjusting the degree of opening of the valve of the air cylinder

Abstract: A teaching playback swing-phase-controlled above-knee prosthesis has a thigh frame, a leg frame, an air cylinder interconnecting the thigh and leg frames and provided with adjusting means for adjusting the degree of opening the valve of the air cylinder to a plurality of degrees respectively for a plurality of walking speeds selected during trial walking. A mode selecting switch has positions respectively for setting degrees of opening of the valve of the air cylinder in a teaching mode and for a playback mode in which one of the degrees of opening is selected according to an actual walking speed. An opening detector detects the degree of opening of the valve of the air cylinder. An opening storage device for stores a plurality of set degrees of opening of the valve of the air cylinder.

Abstract: In a method of fabricating an aluminum surface for applying mirror-smooth fabrication to the surface of aluminum or aluminum alloy by combining an electrolytic anode dissolving effect to the surface and a polishing effect of removing the protruded portions of passivated films formed on the surface to be fabricated by lapping with abrasive grains, the voltage between the aluminum material and the tool electrode is set within 2.1.+-.0.3 V, an electrolyte at less than 10% concentration is used as a passivation type electrolyte, the urging pressure of the tool electrode to the surface is set to less than 2.0 kgf/cm.sup.2 and free abrasive grains with the average grain size of less than 1.0 .mu.m are used as the abrasive grains. The temperature of the electrolyte is preferably set to lower than 15.degree. C. The polishing material may comprise non-woven abrasive cloth made of ultrafine fibers.