JP2016011079A - Vehicular pop-up hood device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular pop-up hood device including impact absorption means when the hood is elevated and stopped.SOLUTION: A vehicular pop-up hood device 3 is provided at the back part of a vehicular hood. The vehicular pop-up hood device 3 includes: hinges 5, 6, and 7 pivotally attached by hinge shafts 8 and 9; and an actuator 10 installed between the hinges 6 and 7 via a joint 18. The actuator 10 includes a cylinder 11, a piston rod, and an inflator 13. When the piston rod is projected to just close to its projection limit, an impact absorption ring provided to the piston rod collides with a stopper and deforms to absorb the impact.

Description

  The present invention relates to a vehicle pop-up hood device that pushes up a rear end portion of a hood when a vehicle collides with a collision object such as a pedestrian.

  In recent years, from the viewpoint of pedestrian protection, when a vehicle collides with a collision body such as a pedestrian, a vehicle pop-up hood device has been developed to relieve the impact by pushing up the rear end of the hood and receiving the collision body with the hood. ing.

  In the vehicle pop-up hood device disclosed in Patent Document 1, actuators are disposed on both sides of the rear end of the hood. The actuator is activated at the time of collision with the collision object, and the rear part of the hood is pushed up.

  When the left and right rear portions of the hood are pushed up by the piston type actuator, the left and right end portions of the hood rear portion are rapidly pushed up by the actuator, and when the piston reaches the forward limit, the left and right end portions of the hood rear portion stop suddenly. For this reason, the central part of the hood in the left-right direction (hereinafter sometimes referred to as the center part) bends and swings up and down for a long time.

  Patent Document 2 discloses an actuator for moving a piston rod by generating high-pressure gas in a cylinder as an actuator for a vehicle pop-up hood device, and a part of this piston rod can be moved relative to the piston rod. An actuator is described in which an impact absorbing portion that generates a predetermined resistance force with a component is formed. Specifically, in FIGS. 1 to 4 and 0026 to 0028 paragraphs of Patent Document 2, the corners of the shock absorbing portion having a square cross section provided on the piston rod bite into the piston and plastically deform, thereby absorbing the shock. An actuator is described.

  If the shock absorber is provided in the actuator as in Patent Document 2, the piston forward speed gradually decreases immediately before the piston reaches the forward limit, so that the rising speed at the left and right ends of the hood also gradually decreases. Become. Thereby, the shaking of the center part of the rear part of the hood is suppressed. Further, the impact (inertial force) applied to the actuator from the rear portion of the hood to be stopped is reduced.

JP 2009-173213 A JP 2008-56068 A

  An object of the present invention is to provide a pop-up hood device for a vehicle having a structure different from that of the shock absorbing portion of Patent Document 2 and provided with a shock absorbing means when the hood is raised and stopped.

  The vehicle pop-up hood device according to the first aspect is a vehicle pop-up hood device having a cylinder, a piston rod that can protrude from the cylinder, and an inflator for biasing the piston rod. In the vehicle pop-up hood apparatus provided with the shock absorbing means for absorbing the shock applied to the vehicle pop-up hood apparatus when it projects to the forward limit or in the vicinity thereof, the shock absorbing means is provided on the piston rod. It is composed of a ring, and the impact is absorbed when the ring abuts against a stopper of the cylinder and plastically deforms.

  The vehicle pop-up hood device according to the second aspect is a vehicle pop-up hood device having a cylinder, a piston rod that can protrude from the cylinder, and an inflator for biasing the piston rod. In the vehicle pop-up hood device provided with shock absorbing means for absorbing the shock applied to the vehicle pop-up hood device when it projects to the forward limit or in the vicinity thereof, the shock absorbing means includes a piston portion of the piston rod and It is an elastic ring interposed between the stopper of the cylinder.

  A vehicle pop-up hood device according to a third aspect is a vehicle pop-up hood device having a cylinder, a piston rod that can protrude from the cylinder, and an inflator for biasing the piston rod. In the vehicle pop-up hood device provided with shock absorbing means for absorbing the shock applied to the vehicle pop-up hood device when it projects to the forward limit or in the vicinity thereof, the shock absorbing means includes a piston portion of the piston rod and It is a deformable deformable member interposed between the stopper of the cylinder, and the impact is absorbed by the deformable member being pinched and deformed between the piston portion and the stopper. Features.

  A vehicle pop-up hood device according to a fourth aspect is a vehicle pop-up hood device having a cylinder, a piston rod that can protrude from the cylinder, and an inflator for biasing the piston rod. In the vehicle pop-up hood device provided with shock absorbing means for absorbing the shock applied to the vehicle pop-up hood device when it projects to the forward limit or in the vicinity thereof, the shock absorbing means includes a piston portion of the piston rod and A wedge-shaped ring that is plastically deformable and is interposed between a stopper of a cylinder, wherein the piston part enters an inner diameter of the wedge-shaped ring, and the wedge-shaped ring is plastically deformed to absorb an impact.

  The vehicle pop-up hood apparatus according to the fifth aspect includes a first hinge and a second hinge that are rotatably connected by a hinge shaft, and an actuator for increasing an opening angle of the first hinge and the second hinge. In the vehicle pop-up hood apparatus, a first connecting portion that connects one end of the actuator to the first hinge and a second connecting portion that connects the other end of the actuator to the second hinge are provided. An impact absorbing member that absorbs an impact by being deformed by being pinched between the actuator side member and the hinge side member when the hinge reaches the limit of opening to at least one of the first and second connecting portions. It is provided.

  The pop-up hood device for a vehicle of the sixth aspect includes a first hinge and a second hinge that are rotatably connected by a hinge shaft, and an actuator for increasing an opening angle of the first hinge and the second hinge. In the pop-up hood device for a vehicle, shock absorbing means including a slot provided in the first hinge and a shear pin provided in the second hinge and entering the slot is provided. When the two hinges are opened by the actuator, before the opening limit is reached, the shear pin is brought into contact with one end of the slot and sheared to absorb the shock.

  A pop-up hood device for a vehicle according to a seventh aspect includes a first hinge and a second hinge that are rotatably connected by a hinge shaft, and an actuator for increasing an opening angle of the first hinge and the second hinge. In a vehicle pop-up hood apparatus, at least one of the first hinge and the second hinge is subjected to an impact by deforming the hinge immediately after the actuator is actuated or when the first hinge and the second hinge are opened to the open limit. It is characterized in that a deformable part that absorbs water is provided. In the seventh aspect, it is preferable that the deformable portion is configured by providing a weak portion such as a notch in the hinge.

  In the vehicle pop-up hood device according to the first aspect, when the piston rod protrudes due to the operation of the inflator, the ring provided on the piston rod comes into contact with the stopper of the cylinder and is plastically deformed immediately before the protrusion limit. Shock is absorbed.

  In the vehicle pop-up hood device according to the second aspect, when the inflator is activated and the piston rod protrudes, the impact is absorbed by the piston portion hitting the stopper via the elastic ring.

  In the vehicle pop-up hood device according to the third aspect, when the inflator is activated and the piston rod protrudes, the impact is absorbed by the piston portion hitting the stopper via the deformable member.

  In the vehicle pop-up hood device according to the fourth aspect, when the inflator is activated and the piston rod protrudes, the piston portion enters the inner hole of the wedge-shaped ring, and the wedge-shaped ring is plastically deformed to absorb the impact. The

  In the vehicle pop-up hood device according to the fifth aspect, when the hinge is opened to the limit, the elastic member interposed between the actuator side member and the hinge side member is sandwiched between the two and deformed. By doing so, the impact is absorbed.

  In the vehicle pop-up hood apparatus according to the sixth aspect, when the actuator is activated and the hinge is opened to the vicinity of the opening limit, the shear pin protruding from one hinge is a slot in the other hinge. The end of the slab is sheared to absorb the shock.

  In the vehicle pop-up hood device according to the seventh aspect, the deformable portion provided on the hinge is deformed immediately after the actuator is actuated or when the hinge is opened to the limit, thereby absorbing the impact. . By this deformation, the position of the rear end of the hood moves toward the rear of the vehicle. Thereby, a food center part is also drawn in food back and a shake is controlled.

  This deformable portion is preferably formed by providing a weak portion such as a notch in the hinge. Immediately after the actuator is actuated or when the hinge is opened to the limit, the stress concentrates on the fragile portion, the hinge is deformed, and the impact is absorbed.

It is a side view of the state where the pop-up hood device for vehicles concerning an embodiment was carried in the car. It is a side view of the pop-up hood apparatus for vehicles of FIG. It is a side view at the time of the piston rod protrusion of the pop-up hood apparatus for vehicles of FIG. It is a perspective view at the time of the piston rod protrusion of the pop-up hood apparatus for vehicles of FIG. It is the VV sectional view taken on the line of FIG. It is a perspective view near the rear end of a piston rod. It is sectional drawing of a part of the pop-up hood apparatus for vehicles which concerns on another embodiment. FIG. 6 is a partial cross-sectional view of a vehicle pop-up hood apparatus according to another embodiment. It is a partial sectional view of the pop-up hood device for vehicles concerning an embodiment. It is a partial sectional view of the pop-up hood device for vehicles concerning an embodiment. It is a partial side view of the pop-up hood apparatus for vehicles which concerns on another embodiment. It is a side view at the time of the piston rod protrusion of the pop-up hood apparatus for vehicles of FIG. It is the XIII-XIII sectional view taken on the line of FIG. It is a side view of the pop-up hood device for vehicles concerning another embodiment. It is the XIV-XIV sectional view taken on the line of FIG.

  Hereinafter, embodiments will be described with reference to the drawings. 1 to 6 show a first embodiment.

  As shown in FIG. 1, a hood (bonnet hood) 2 is installed so as to cover the upper surface of the engine room of the automobile 1. The left and right sides of the rear portion of the hood 2 are attached to a vehicle body member via a vehicle pop-up hood device 3 that also serves as a hinge device so as to be rotatable in the vertical direction.

A front portion of the hood 2 is connected to a vehicle body member by a hood striker 4. The connection by the food striker 4 can be released by a lock release handle provided in the vehicle 1. When releasing the connection of the hood striker 4 by the lock release handle, the hood 2 as a front end side of the arrow U ₁ is rotatable upward the first hinge axis 8 of the Pop-up vehicle hood apparatus 3 as the pivot center. When the pop-up hood apparatus 3 the vehicle is activated popup (hood pushed), the hood 2, and as rotation of the arrow U ₂ a hood striker 4 as the pivot center, the rear end is pushed upward.

  As shown in FIGS. 2 to 4, the vehicle pop-up hood device 3 includes a base hinge 5, a mid hinge 6, a top hinge 7, hinge shafts 8 and 9, an actuator 10, and the like.

  The base hinge 5 is fixed to the vehicle body member with a bolt (not shown), and the top hinge 7 is fixed to the hood 2 with a bolt (not shown).

  The base hinge 5 has a bottom seat portion 5a fixed to the vehicle body member and a standing portion 5b standing from one end of the bottom seat portion 5a, and has a substantially L-shaped side view. The base end side of the mid hinge 6 is rotatably connected to the upper portion of the upright portion 5b by a first hinge shaft 8.

  The base end side of the top hinge 7 is rotatably connected to the distal end side of the mid hinge 6 by a second hinge shaft 9. The top hinge 7 is provided with a notch 7 a that bites in from the upper side in the vicinity of the second hinge shaft 9.

  The actuator 10 includes a cylinder 11, a piston rod 12 that can project from the distal end side of the cylinder 11, an inflator (gas generator) 13 fixed on the proximal end side of the cylinder 11, and the like. The cylinder 11 is rotatably connected to a shaft pin 15 fixed to the mid hinge 6 by a holder 14. The piston rod 12 is rotatably connected to a shaft pin 17 fixed to the top hinge 7 via a joint 18.

  The shaft pin 15 protrudes in the horizontal direction (vehicle body width direction) from the side surface of the mid hinge 6 on the second hinge shaft 9 side slightly from the middle between the hinge shafts 8 and 9. The shaft pin 17 projects from the tip of the top hinge 7 in the horizontal direction (vehicle body width direction). As shown in FIG. 5, the shaft pins 15 and 17 are substantially columnar, the base end side of the column in the axial center direction has a large diameter, the middle portion in the axial center direction has a small diameter, The tip side in the axial direction is a smaller diameter, and an external thread is engraved on the outer peripheral surface.

  The holder 14 has a C-shaped portion 14a surrounding the cylinder 11 and a pair of parallel plate portions 14b extending from the C-shaped portion 14a. The intermediate portion of the shaft pin 15 is inserted into a hole (not shown) provided in the parallel plate portion 14b via a washer, and the nut 16 is tightened to the male screw of the boss portion 15 via a washer. A rear portion of the cylinder 11 is rotatably connected to the mid hinge 6.

  As shown in FIGS. 5 and 6, the piston rod 12 has a piston portion 12a on the base end side. A ring groove 12b is provided around the outer periphery of the piston portion 12a, and an O-ring 21 is fitted in the groove 12b. The O-ring 21 is slidably in contact with the inner peripheral surface of the cylinder 11 and has a gas sealing function.

  A joint connection hole 12c is recessed from the front end surface of the piston rod 12 in the rod axial direction, and a female thread is formed on the inner peripheral surface of the joint connection hole 12c.

  The joint 18 includes a shaft portion 18a and an annular end portion 18b provided on the tip side of the shaft portion 18a. The shaft portion 18 a has a male thread on the outer peripheral surface, and is screwed into the joint connection hole 12 c of the piston rod 12. The end portion 18b is externally fitted to the small diameter portion of the shaft pin 17 through a bush 22 with a collar. When the nut 23 is tightened on the distal end side of the shaft pin 17, the end portion 18 b is not removed from the shaft pin 17.

  As shown in FIG. 5, a cap-like stopper 24 is fixed to the tip end side of the cylinder 11. The piston rod 12 extends forward of the cylinder 11 through the hole 24 a of the stopper 24.

  In this embodiment, as shown in FIGS. 5 and 6, on the piston 12a side of the stopper 24, a groove 12d is provided around the piston rod 12, and an impact absorbing ring 25 is attached to the groove 12d. The outer diameter of the shock absorbing ring 25 is larger than the inner diameter of the hole 24 a and smaller than the inner diameter of the cylinder 11. In this embodiment, the shock absorbing ring 25 is made of a metal C-ring.

When the automobile 1 equipped with the vehicle pop-up hood device 3 configured as described above collides with a pedestrian, a two-wheeled vehicle, etc., the inflator 13 is activated, the gas is supplied into the cylinder 11, and the piston rod 12 is moved from the cylinder 11. Protruding. Thus, as FIGS. 3 and 4, the top hinge 7 is pushed up, the rear portion of the hood 2 is pushed in the arrow U ₂ direction. The piston rod 11 protrudes from the cylinder 11 until the shock absorbing ring 25 hits the stopper 24. When the shock absorbing ring 25 hits the stopper 24, the shock absorbing ring 25 is plastically deformed and the shock when the hood 2 is stopped is absorbed. Thereby, the shaking of the center part of the rear part of the hood 2 is suppressed. Further, since the impact (inertial force) applied to the actuator 10 from the rear portion of the hood 2 is reduced, the strength and rigidity required for the constituent members of the actuator 10 are reduced.

  In this embodiment, a notch 7 a is provided in the vicinity of the hinge shaft 9 of the top hinge 7. When an inertial force is applied from the hood 2, the top hinge 7 is plastically deformed so as to narrow the width of the notch 7a, thereby absorbing the impact.

[Other structural examples of shock absorbing mechanism]
Other structural examples of the shock absorbing mechanism provided in the actuator 3 will be described with reference to FIGS.

  In FIG. 7, the shock absorbing ring 25 is omitted, and instead, one or more elastic rings 26 made of rubber, synthetic resin or the like are externally attached to the piston rod 12 on the stopper 24 side of the piston portion 12a. When the inflator 13 is operated and the piston rod 12 moves forward, the impact is absorbed by the piston portion 12a hitting the stopper 24 via the elastic ring 26. The other configuration of FIG. 7 is the same as that of the above embodiment.

  In FIG. 8, a deformable member 27 is provided so as to surround the stopper 24 side of the piston portion 12a of the piston rod 12 instead of the elastic ring 26 of FIG. The deformable member 27 is a metal member that can be plastically deformed. In this embodiment, the deformable member 27 has a honeycomb shape, but is not limited thereto. Other configurations in FIG. 8 are the same as those in FIG.

  When the inflator is activated and the piston rod 12 moves forward, the piston portion 12 a hits the stopper 24 via the deformable member 27. At this time, the deformable member 27 is plastically deformed to absorb the impact.

  In FIG. 9, a wedge-shaped ring 28 is provided so as to surround the stopper 24 side of the piston portion 12a of the piston rod 12 instead of the elastic ring 26 of FIG. The wedge-shaped ring 28 is a plastically deformable metal or synthetic resin member. The wedge-shaped ring 28 has a cylindrical outer peripheral surface and a tapered shape in which the inner peripheral surface of the inner hole has a smaller diameter toward the stopper 24 side. The inner diameter at the end of the wedge-shaped ring 28 on the piston portion 12a side is substantially equal to the outer diameter. The inner diameter of the wedge-shaped ring 28 on the stopper 24 side is smaller than the outer diameter of the piston portion 12a. Other configurations in FIG. 9 are the same as those in FIG.

  When the inflator is activated and the piston rod 12 moves forward, the piston portion 12a enters the inner hole of the wedge-shaped ring 28, and the wedge-shaped ring 28 is plastically deformed to absorb the impact.

  FIG. 10 shows a configuration using an elastic sleeve 29 for absorbing shock, and shows a cross section of the same portion as in FIG.

  In this embodiment, an elastic sleeve 29 made of rubber, synthetic resin or the like is interposed between the inner peripheral surface of the annular end portion 18 b of the joint 18 and the outer peripheral surface of the bush 22. The other configuration of FIG. 8 is the same as that of the embodiment of FIGS. 1 to 6 except that the shock absorbing ring 25 is omitted.

  When the inflator is activated and the piston rod 12 moves forward, the elastic sleeve 29 is pinched between the inner peripheral surface of the end portion 18b and the outer peripheral surface of the bush 22 when the piston portion 12a hits the stopper 24, The elastic sleeve 29 is deformed and the impact is absorbed.

  The elastic sleeve 29 may be provided on the shaft pin 15 side, or may be provided on both the shaft pins 15 and 17. Further, instead of the elastic sleeve 29, a sleeve that is plastically deformed may be provided.

  The shock absorbing mechanism of the vehicle pop-up hood apparatus 3A shown in FIGS. 11 to 13 includes a slot 30 provided in the mid hinge 6 and a shear pin 31 protruding from the top hinge 7 and inserted into the slot 30. ing. The slot 30 is an arc-shaped long hole extending at an equal radius with respect to the axis of the hinge pin 9. When the actuator of FIG. 11 is not operated, the shear pin 31 is located at the lowermost part of the slot 30 or in the vicinity thereof. Other configurations are the same as those of the embodiment of FIGS. 1 to 6 except that the shock absorbing ring 25 is omitted.

  When the inflator 13 is activated and the piston rod 12 moves forward, the shear pin 31 hits the upper end of the slot 30 and the shear pin 31 is sheared as shown in FIGS. 12 and 13 before the piston portion 12a hits the stopper 24. The shock is absorbed.

  The shock absorbing mechanism of the vehicle pop-up hood device 3B shown in FIGS. 14 and 15 is formed by a notch 33 provided between the hinge shafts 8 and 9 and in the vicinity of the hinge shaft 9 in the upper side of the mid hinge 6. Yes.

  As shown in FIG. 15, the mid hinge 6 includes a plate portion 6 a having a plate surface in the vertical direction, and rib portions that stand vertically from the bottom portion and a pair of vertical sides of the plate portion 6 a in a direction perpendicular to the plate portion 6 a. 6b. The notch 33 is provided in the upper side part of the plate part 6a.

  In this embodiment, the notch 33 has a V shape whose width increases toward the top. The V-shaped opening angle θ is preferably 30 ° or more, particularly 30 to 120 °, particularly about 45 to 90 °, but is not limited thereto.

The ratio H ₂ / H ₁ between the depth H ₂ of the notch 33 and the height H ₁ of the plate portion 6a is preferably about 0.50 to 0.90, particularly about 0.60 to 0.85. The ratio H ₃ / W between the difference H ₃ between H ₁ and H ₂ (H ₃ = H ₁ −H ₂ ) and the width W of the rib 6b is 0.4 to 1.1, particularly 0.5 to 0.8. The degree is preferred.

  In the vehicle pop-up hood device of FIGS. 13 and 14 configured as described above, when the inflator 13 generates and operates gas, the piston rod 12 protrudes and the piston portion 12 a hits the stopper 24. At this time, due to the inertial force of the hood 2, stress concentrates in the vicinity of the notch 33 of the mid hinge 6 so that the opening angle θ of the notch 33 becomes small (that is, between the hinge shafts 8 and 9). Plastic deformation (so that the distance becomes shorter), thereby absorbing the impact.

  Each of the above embodiments is an example of the present invention, and the present invention may be configured other than illustrated. For example, the notch 33 may be provided in a portion other than that illustrated, or a plurality of notches may be provided.

DESCRIPTION OF SYMBOLS 1 Automobile 2 Hood 3, 3A, 3B Vehicle pop-up hood apparatus 4 Striker 5 Base hinge 6 Mid hinge 7 Top hinge 10 Actuator 11 Cylinder 12 Piston rod 12a Piston part 18 Joint 26 Elastic ring 27 Deformable member 28 Wedge-shaped ring 29 Elastic sleeve 30 Slot 31 Shear pin 33 Notch

Claims (9)

A vehicle pop-up hood device having a cylinder, a piston rod that can protrude from the cylinder, and an inflator for biasing the piston rod,
In the vehicle pop-up hood device provided with shock absorbing means for absorbing the shock applied to the vehicle pop-up hood device when the piston rod protrudes to the forward limit or the vicinity thereof,
The pop-up hood device for a vehicle, wherein the impact absorbing means comprises a ring provided on the piston rod, and the impact is absorbed when the ring abuts against a stopper of the cylinder and plastically deforms. A vehicle pop-up hood device having a cylinder, a piston rod that can protrude from the cylinder, and an inflator for biasing the piston rod,
In the vehicle pop-up hood device provided with shock absorbing means for absorbing the shock applied to the vehicle pop-up hood device when the piston rod protrudes to the forward limit or the vicinity thereof,
The vehicle pop-up hood apparatus, wherein the impact absorbing means is an elastic ring interposed between a piston portion of the piston rod and a stopper of the cylinder. A vehicle pop-up hood device having a cylinder, a piston rod that can protrude from the cylinder, and an inflator for biasing the piston rod,
In the vehicle pop-up hood device provided with shock absorbing means for absorbing the shock applied to the vehicle pop-up hood device when the piston rod protrudes to the forward limit or the vicinity thereof,
The shock absorbing means is a deformable deformable member interposed between a piston portion of the piston rod and a stopper of the cylinder, and the deformable member is clamped between the piston portion and the stopper. A pop-up hood device for a vehicle, wherein the impact is absorbed by being deformed. A vehicle pop-up hood device having a cylinder, a piston rod that can protrude from the cylinder, and an inflator for biasing the piston rod,
In the vehicle pop-up hood device provided with shock absorbing means for absorbing the shock applied to the vehicle pop-up hood device when the piston rod protrudes to the forward limit or the vicinity thereof,
The impact absorbing means is a plastically deformable wedge-shaped ring interposed between a piston portion of the piston rod and a cylinder stopper. The piston portion enters the inner diameter of the wedge-shaped ring, and the wedge-shaped ring is plastically deformed. A pop-up hood device for a vehicle characterized in that shock is absorbed. A first hinge and a second hinge rotatably connected by a hinge shaft;
In a vehicle pop-up hood apparatus having an actuator for increasing an opening angle of the first hinge and the second hinge,
A first connecting part for connecting one end of the actuator to the first hinge, and a second connecting part for connecting the other end of the actuator to the second hinge;
At least one of the first connecting portion and the second connecting portion is deformed by being pinched between the actuator side member and the hinge side member when the hinge reaches the limit of opening, and absorbs the impact. A pop-up hood device for a vehicle, wherein an impact absorbing member is provided. A first hinge and a second hinge rotatably connected by a hinge shaft;
In a vehicle pop-up hood apparatus having an actuator for increasing an opening angle of the first hinge and the second hinge,
Shock absorbing means comprising a slot provided in the first hinge and a shear pin provided in the second hinge and entering the slot;
When the first hinge and the second hinge are opened by an actuator, the shear pin is brought into contact with one end of the slot and sheared before the opening limit is reached, so that an impact is absorbed. A pop-up hood device for vehicles. A first hinge and a second hinge rotatably connected by a hinge shaft;
In a vehicle pop-up hood apparatus having an actuator for increasing an opening angle of the first hinge and the second hinge,
At least one of the first hinge and the second hinge has a deformable portion that absorbs an impact by deforming the hinge immediately after the actuator is actuated or when the first hinge and the second hinge are opened to the open limit. A pop-up hood device for a vehicle characterized by being provided.   The vehicle pop-up hood device according to claim 7, wherein the deformable portion is configured by providing a weak portion on the hinge.   9. The vehicle pop-up hood device according to claim 8, wherein the weakened portion is a notch.

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