Abstract: An image data file contains a plurality of layers of representative shapes of a target object to be plotted. Under control of a CPU, a CRT display unit displays the representative shapes retrieved from each layer. When one of the shapes is selected using a keyboard or a mouse, the representative shapes in the next lower layer relative to the selected shape is displayed. Ultimately, the shape of the target object is displayed.

Abstract: A vehicle body cover includes a fairing outer and a fairing inner mounted onto the fairing outer. An instrument panel is supported by the fairing inner. Left and right side panels each have an inner wall with an upper rim, and an outwardly extending flange attached to said fairing outer. A top cover overlies and connects to the upper rims of the side panels, and has arms attached to the fairing inner.

Abstract: A motorcycle provided with a central trunk and left and right trunks at the rear portion of the vehicle body. The vehicle body frame of this motorcycle is composed of a main vehicle body frame at the front and a rear vehicle body frame that can be detachably mounted to this main vehicle body frame. The rear vehicle body frame constitutes a trunk assembly jointly with a central trunk, a left trunk, a right trunk and other equipments such as lamps, and after the above-mentioned trunk assembly has been formed preliminarily as one unit outside of a main assembly line, it is detachably mounted to the main vehicle body frame on the main assembly line. Accordingly, the work on the main assembly line becomes little and simple, and a productivity is improved. Upon replacement of a rear wheel tire, it is only necessary to dismount the entire trunk assembly together with the rear vehicle body frame without individually dismounting a large number of equipments.

Abstract: A seat adjusting apparatus for a saddle-type vehicle having a seat provided with a backrest is disclosed. It is provided with an adjusting mechanism for adjusting the state of the backrest, such as the longitudinal position or the tilting angle of the backrest with respect to the seat. A manual operating apparatus connected to this adjusting mechanism and adapted to drive the adjusting mechanism is disposed on the side of the seat below the backrest. The rider can freely adjust the position, angle, etc. of the backrest by operating the manual operating apparatus while maintaining his attitude astride the seat. The backrest may be provided on both sides with waist holding members which are opened and shut sidewards by operating the manual operating apparatus.