Bonnet structure of automotive vehicle

A bonnet structure of an automotive vehicle, in which a rear portion of a bonnet including a bonnet outer panel and a bonnet inner panel is pivotally supported at a vehicle body via a hinge,

• wherein said 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 central protrusion portion and the rear protrusion portion 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, and
• wherein a lock portion to be engaged with a vehicle-body side is provided at a front portion of the bonnet, a ridge-holding starting point to promote an upward bending is provided at a portion of said bonnet inner panel between said lock portion and said hinge reinforcement, and a reinforcement portion which is configured to extend in the vehicle width direction and deform downward when receiving an input load greater than a longitudinal-direction proof stress thereof and a front end of the hinge reinforcement are arranged side by side in the vehicle width direction at a position rearward of said ridge-holding starting point.

A bonnet structure of an automotive vehicle, in which a rear portion of a bonnet including a bonnet outer panel and a bonnet inner panel is pivotally supported at a vehicle body via a hinge,

• wherein said 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 central protrusion portion and the rear protrusion portion 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, and
• wherein a striker to be engaged with a vehicle-body side is provided at a front portion of the bonnet, a frame-shaped groove which encloses a front side and right and left sides of three portions of said central protrusion portion, said rear protrusion portion, and said deep-drawn groove in a U shape and has a deeper depth than the deep-drawn groove is provided at said bonnet inner panel, and a stiffener is spaced upward apart from a striker attachment portion and provided to extend between a front slant face of the central protrusion portion and a front end portion of the bonnet inner panel.

A bonnet structure of an automotive vehicle, in which a rear portion of a bonnet including a bonnet outer panel and a bonnet inner panel is pivotally supported at a vehicle body via a hinge,

• wherein said 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 central protrusion portion and the rear protrusion portion 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, and
• wherein a striker to be engaged with a vehicle-body side is provided at a front portion of said bonnet inner panel, at a front slant face of the bonnet inner panel which is located rearward of a striker attachment portion are provided a stiffener joint portion and a pair of first opening portions which are provided at both ends in the vehicle width direction and configured to cut an upper ridgeline of said front slant face, and a second opening portion is provided at a portion of said front slant face which is located between said first opening portion and said stiffener joint portion such that the second opening portion is located downward apart from said upper ridgeline.