BODY-SIZE CLASS SPECIFICATION DEVICE, BODY-SIZE CLASS SPECIFICATION METHOD, DRIVING-POSITION SETTING DEVICE, AND DRIVING-POSITION SETTING METHOD

A body-size class specification device of the present invention comprises a class feature-quantity information memorizing section to memorize class feature-quantity information to correlate plural classes for classifying a body size according to a dimension ratio of prescribed parts of a body with plural prescribed feature quantities for characterizing the plural classes, a first input section as an example of a feature-quantity acquiring section to acquire feature quantity of an object person to be specified for the class, an eye-height measuring section and an upper-body-length-ratio processing section, and a class specifying section to specify the class corresponding to the feature quantity of the object person acquired by the feature-quantity acquiring section based on the class feature-quantity information memorized by the class feature-quantity information memorizing section.