Abstract: A speed of an opening-closing action of a back door, for example, is changed from an acceleration area to a deceleration area by way of a constant-speed area, and an opening-closing action of the back door is configured to come to an end in the deceleration area. In the deceleration area, deceleration (a second deceleration in FIG. 3, a fourth deceleration in FIG. 4) of an opening-closing action of the back door at a point before the opening-closing action of the back door comes to the end is set to be smaller than another deceleration (a first deceleration in FIG. 3, a third deceleration in FIG. 4) of the opening-closing action of the back door at a deceleration start point of the opening-closing action of the back door.

Abstract: A bonnet inner panel includes a central protrusion portion protruding upward in a vehicle elevational view and a rear protrusion portion located in back of the central protrusion portion, which are arranged side by side in a vehicle longitudinal direction, a deep-drawn groove is provided between the both protrusion portions to extend in a vehicle width direction, and a hinge reinforcement is provided to extend from a position beside the rear protrusion portion to a position at a rear end of the central protrusion portion, passing through beside the deep-drawn groove. Thereby, the hinge support rigidity of the rear portion of the bonnet having the central protrusion portion can be increased, so that occurrence of any improper deflection or vibration caused to the bonnet by the traveling vibration, the traveling-air pressure or the like can be prevented.

Abstract: A bonnet inner panel includes a central protrusion portion protruding upward in a vehicle elevational view and a rear protrusion portion located in back of the central protrusion portion, which are arranged side by side in a vehicle longitudinal direction, a deep-drawn groove is provided between the both protrusion portions to extend in a vehicle width direction, and a hinge reinforcement is provided to extend from a position beside the rear protrusion portion to a position at a rear end of the central protrusion portion, passing through beside the deep-drawn groove. Thereby, the hinge support rigidity of the rear portion of the bonnet having the central protrusion portion can be increased, so that occurrence of any improper deflection or vibration caused to the bonnet by the traveling vibration, the traveling-air pressure or the like can be prevented.

Abstract: A handle knob to conduct an opening/closing operation of a front door is provided on an outer-face side of an outer panel, and a handle base to pivotally support the handle knob is provided on an inner-face side of the outer panel. A beltline reinforcement to reinforce an beltline portion of the outer panel is provided on the inner-face side of the outer panel. The handle base is connected to the beltline reinforcement via an connecting portion. Thereby, the support rigidity of the handle base can be increased, thereby properly preventing the handle base from moving by an improper access.

Abstract: A handle knob to conduct an opening/closing operation of a front door is provided on an outer-face side of an outer panel, and a handle base to pivotally support the handle knob is provided on an inner-face side of the outer panel. A beltline reinforcement to reinforce an beltline portion of the outer panel is provided on the inner-face side of the outer panel. The handle base is connected to the beltline reinforcement via an connecting portion. Thereby, the support rigidity of the handle base can be increased, thereby properly preventing the handle base from moving by an improper access.