Vehicle pop-up hood apparatus
A pop-up hood apparatus includes a hood, a hood lock mechanism, a support mechanism of the hood lock mechanism, and an actuator that displaces the hood lock mechanism upward. The support mechanism includes a movable block that supports the hood lock mechanism and a base block and that supports the movable block such that the movable block is slidable upward and downward. The base block has a long hole that extends along a vertical direction. A protrusion part that is slidably inserted in the long hole is provided on the movable block. A resistance-applying part that comes into contact with the protrusion part and that applies a resistance to the protrusion part is provided in at least a higher region of the long hole than a required elevation position of the hood.
1. A vehicle pop-up hood apparatus, comprising:
a hood that closes an opening part at an outer part of a vehicle body;
a hood lock mechanism that fixes the hood to the vehicle body in a closed state of the hood;
a support mechanism that supports the hood lock mechanism to the vehicle body such that the hood lock mechanism is movable upward and downward; and
an actuator that displaces the hood lock mechanism together with the hood upward in an emergency,
wherein the support mechanism includes
a movable block that supports the hood lock mechanism and
a base block that is fixed to the vehicle body and that supports the movable block such that the movable block is slidable upward and downward,
the base block has a long hole that extends along a vertical direction,
a protrusion part that is slidably inserted in the long hole is provided on the movable block,
a resistance-applying part that comes into contact with the protrusion part and that applies a resistance to the protrusion part is provided in at least a higher region of the long hole than a required elevation position of the hood,
a load reception member that receives an operation load of the actuator is fastened and fixed to the movable block by a bolt, and
the protrusion part is constituted of a shaft part of the bolt.
2. The vehicle pop-up hood apparatus according to claim 1 ,
wherein the resistance-applying part is formed of: a narrow width part having a width that is wider than an outer diameter of the protrusion part and that is narrower than a width of a wide width part of a lower region of the long hole; and a taper part that is arranged between the wide width part and the narrow width part and that has a width which continuously narrows from the wide width part toward the narrow width part.
3. The vehicle pop-up hood apparatus according to claim 1 ,
wherein the resistance-applying part is constituted of a corrugated groove.
4. The vehicle pop-up hood apparatus according to claim 1 ,
wherein the resistance-applying part is constituted of a narrow width part having a width at the narrowest portion that is narrower than an outer diameter of the protrusion part and a lightening hole that is provided on an edge portion of the narrow width part.
5. The vehicle pop-up hood apparatus according to claim 1 ,
wherein the resistance-applying part is constituted of a deformable protrusion piece that extends from an edge part of the long hole toward an inside of the long hole.