Vehicular hood

Abstract

To provide a vehicular hood which is reduced in mass and cost while securing rigidity and strength for suppressing deformation of the whole vehicular hood, resistance for suppressing an outer panel from being deformed to be depressed, and pedestrian protection performance.SOLUTION: A vehicular hood includes: a pair of hood lock reinforcements 4 arranged between an outer panel 2 and an inner panel 3, and fixed one by one to right and left sides of a front part of the inner panel 3; and a pair of dent reinforcements 6 arranged between the hood lock reinforcements 4 at the right and left sides and the outer panel 2. The inner panel 3 is formed so that a plurality of bead shapes 31 extending in a vehicle longitudinal direction swelling to the outer panel 2 are arranged side by side in a vehicle width direction between the hood lock reinforcements 4 at the right and left sides.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle hood that covers an upper side of a front compartment of a vehicle. [Background technology]

[0002] Patent Document 1 discloses a vehicle hood in which a hood lock reinforcement and a dent reinforcement are arranged as plate members extending in the vehicle width direction in the space between an outer panel and an inner panel. By providing the hood lock reinforcement and the dent reinforcement, this vehicle hood ensures rigidity and durability to suppress deformation of the entire vehicle hood, and also ensures resistance to suppress deformation of the outer panel so as to be recessed. Furthermore, this vehicle hood ensures pedestrian protection performance even if the front end of a moving vehicle collides with a pedestrian and the pedestrian falls onto the vehicle hood, as the outer panel and the dent reinforcement deform to mitigate the impact on the pedestrian.

[0003] Patent Document 2 discloses a vehicle hood including an inner panel on which a plurality of bead shapes, each of which bulges toward the outer panel and extends in the vehicle width direction, are arranged side by side in the vehicle front-rear direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-075141 [Patent Document 2] JP 2022-102467 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the vehicle hood disclosed in Patent Document 1, the hood lock reinforcement and the dent reinforcement extend in the vehicle width direction from the striker provided on the right side of the vehicle hood to the striker provided on the left side. Therefore, if the area in which the hood lock reinforcement and the dent reinforcement are provided can be reduced, the mass and cost of the vehicle hood can be reduced.

[0006] Therefore, an object of the present invention is to provide a vehicle hood that has reduced mass and cost while ensuring rigidity and strength to suppress deformation of the entire vehicle hood, resistance to suppress deformation of the outer panel such that it becomes recessed, and pedestrian protection performance. [Means for solving the problem]

[0007] The vehicle hood of the present invention comprises an outer panel that forms the outer surface of the vehicle, an inner panel that forms the inner surface of the vehicle, a pair of hood lock reinforcements arranged between the outer panel and the inner panel, one on each side of the left and right sides of a front of the inner panel, a pair of strikers that are fixed to the hood lock reinforcements on the left and right sides, one on each side, and each capable of engaging with an engaging member provided on the vehicle body, and a pair of dent reinforcements arranged between the hood lock reinforcements on the left and right sides and the outer panel, respectively, and is characterized in that the inner panel is formed so that a plurality of bead shapes that bulge toward the outer panel and extend in the fore-and-aft direction of the vehicle are arranged in a row in the vehicle width direction between the hood lock reinforcements on the left and right sides. Effect of the Invention

[0008] The present invention can provide a vehicle hood that has reduced mass and cost while ensuring rigidity and strength to suppress deformation of the entire vehicle hood, resistance to suppress deformation of the outer panel such that it is recessed, and pedestrian protection performance. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a top view of a vehicle hood according to an embodiment of the present disclosure. [Diagram 2] 2 is a cross-sectional view taken along line AA in FIG. 1. [Diagram 3] FIG. 3 is a cross-sectional view taken along line BB in FIGS. 1 and 2. [Figure 4] 3 is a cross-sectional view taken along line CC in FIG. 1 and FIG. 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, a vehicle hood 10 according to an embodiment of the present disclosure will be described with reference to Figures 1 to 4. The arrows FR, UP, and RH shown in the following drawings indicate the front direction (travel direction), the upward direction, and the rightward direction of the vehicle when the vehicle hood 10 is closed. The opposite directions of the arrows FR, UP, and RH indicate the rearward direction, the downward direction, and the leftward direction of the vehicle, respectively. Hereinafter, when the directions of front-rear, left-right, and up-down are simply used, they refer to front-rear in the front-rear direction of the vehicle, left-right in the left-right direction of the vehicle (vehicle width direction), and up-down in the up-down direction of the vehicle when the vehicle hood 10 is closed, unless otherwise specified.

[0011] 1 is a top view of a vehicle hood 10 according to this embodiment. The vehicle hood 10 is rotatably supported by a hinge 1 provided at the rear of the front compartment, which is the space in front of the dash panel, and the front compartment can be opened and closed by moving the front end up and down. When the vehicle hood 10 is closed, the vehicle hood 10 covers the upper part of the front compartment.

[0012] Fig. 2 is a cross-sectional view taken along line AA in Fig. 1. Fig. 3 is a cross-sectional view taken along line BB in Figs. 1 and 2. Fig. 4 is a cross-sectional view taken along line CC in Figs. 1 and 2. As shown in Figs. 2 to 4, the vehicle hood 10 includes an outer panel 2 constituting the outer surface side of the vehicle, an inner panel 3 constituting the inner surface side (front compartment side) of the vehicle, a pair of hood lock reinforcements 4, a pair of strikers 5, and a pair of dent reinforcements 6. In the vehicle hood 10, the peripheral portion of the outer panel 2 and the peripheral portion of the inner panel 3 are joined together, so that a space is formed between the outer panel 2 and the inner panel 3.

[0013] The pair of hood lock reinforcements 4 are disposed in the space between the outer panel 2 and the inner panel 3, and are plate-like members fixed to the left and right side portions of the front part of the inner panel 3, one each. The pair of strikers 5 each have a shape obtained by bending a rod material into a U-shape, and are fixed to the left and right hood lock reinforcements 4, one each. The vehicle body is provided with lock mechanisms (not shown) on both the left and right sides as engagement members, and when the vehicle hood 10 is closed, the pair of strikers 5 engage with the lock mechanisms, thereby holding the vehicle hood 10 in a closed state. When the vehicle hood 10 is closed, a reaction force is applied from the lock mechanism to the striker 5 when the striker 5 engages with the lock mechanism. However, the vehicle hood 10 is provided with the hood lock reinforcement 4 to which the striker 5 is fixed, and thus deformation of the vehicle hood 10 due to this reaction force can be suppressed.

[0014] As shown in Figs. 2 and 3, the inner panel 3 is formed in a vehicle width direction central portion between the hood lock reinforcements 4 on both the left and right sides such that a plurality of bead shapes 31 extending in the vehicle front-rear direction and bulging toward the outer panel 2 are arranged in the vehicle width direction. The vehicle hood 10 has the rigidity and strength to suppress deformation of the entire vehicle hood 10, because the plurality of bead shapes 31 extending in the vehicle front-rear direction are formed in the inner panel 3. The bead shapes 31 of the inner panel 3 extend in the vehicle front-rear direction along the outer panel 2 while securing a gap between the inner panel 3 and the outer panel 2. The vehicle hood 10 has the resistance to suppress deformation of the outer panel 2 in the vehicle width direction central portion by the ridge portion 32 of the bead shape 31 extending in the vehicle front-rear direction along the outer panel 2 while securing a gap between the outer panel 2 and the outer panel 2. In addition, even if the front end of a moving vehicle collides with a pedestrian and the pedestrian falls into the center of the vehicle width direction of the vehicle hood 10, the vehicle hood 10 can mitigate the impact received by the fallen pedestrian by deforming the outer panel 2 and the inner panel 3.

[0015] The pair of dent reinforcements 6 are plate-like members disposed between the hood lock reinforcement 4 and the outer panel 2 on both the left and right sides. Each of the dent reinforcements 6 is disposed in a space between the outer panel 2 and the inner panel 3. As shown in Figs. 2 and 4, the dent reinforcement 6 includes an upper plate portion 61 disposed along the outer panel 2 while securing a gap between the outer panel 2 and the inner panel 3, and a joint portion 62 joined to the inner panel 3 on the inside in the vehicle width direction. The bead shape 31 is not formed on the side portion of the inner panel 3 to which the hood lock reinforcement 4 is fixed. However, the vehicle hood 10 has resistance to suppress deformation of the outer panel 2 so as to be recessed above the hood lock reinforcement 4, since the upper plate portion 61 of the dent reinforcement 6 is disposed along the outer panel 2 while securing a gap between the outer panel 2 and the outer panel 2. In addition, even if the front end of a traveling vehicle collides with a pedestrian and the pedestrian falls onto the hood lock reinforcement 4, the outer panel 2 and the dent reinforcement 6 can deform to mitigate the impact received by the fallen pedestrian.

[0016] In this way, the vehicle hood 10 is formed such that a plurality of bead shapes 31 extending in the vehicle front-rear direction are arranged side by side in the vehicle width direction in the vehicle width direction central portion of the inner panel 3, and the dent reinforcement 6 is provided in the side portion where the bead shapes 31 are not formed, so that the rigidity and strength suppressing deformation of the entire vehicle hood 10, the resistance to suppress deformation of the outer panel 2 into a recess, and pedestrian protection performance can be ensured. Furthermore, the vehicle hood 10 does not have the hood lock reinforcement 4 and the dent reinforcement 6 provided in the vehicle width direction central portion, and compared to the vehicle hood disclosed in Patent Document 1, the range where the hood lock reinforcement 4 and the dent reinforcement 6 are provided is reduced, so that the mass and cost can be reduced. [Explanation of symbols]

[0017] 1 hinge, 2 outer panel, 3 inner panel, 4 hood lock reinforcement, 5 striker, 6 dent reinforcement, 10 vehicle hood, 31 bead shape, 32 ridge portion, 61 upper plate portion, 62 joint portion.

Claims

[Claim 1] An outer panel that constitutes the outer surface side of the vehicle; An inner panel that constitutes an inner surface side of the vehicle; a pair of hood lock reinforcements disposed between the outer panel and the inner panel and fixed to both left and right sides of a front portion of the inner panel, a pair of strikers each fixed to the hood lock reinforcement on each of the left and right sides, each engageable with an engaging member provided on a vehicle body; a pair of dent reinforcements respectively disposed between the hood lock reinforcement on each of the left and right sides and the outer panel; The vehicle hood is characterized in that the inner panel is formed between the hood lock reinforcements on both the left and right sides so that a plurality of bead shapes that bulge toward the outer panel and extend in the fore-and-aft direction of the vehicle are arranged in a line in the vehicle width direction.

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