JP2002029368A - Vehicle hood device - Google Patents

Abstract

(57) [Problem] To provide a vehicle hood device that can simplify a configuration for holding a hood and increase productivity. A hood device for a vehicle includes a hinge means for lifting a hood by an actuator when an obstacle collides and for determining a position of the hood to be raised by first and second links. 30. The hinge means 30 provides the first link 50 with a first link stopper 53 for preventing the first link 50 from falling down to the rear of the vehicle after the first and second links 50 and 60 are extended by the action of the actuator 24. In addition, a second link stopper 62 for engaging the second link 60 with the first link 50 is provided on the second link 60 when the second link 60 falls forward of the vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hood device for a vehicle which lifts the hood to secure a sufficient amount of deformation of the hood and absorbs an impact.

[0002]

2. Description of the Related Art Some vehicle hood devices lift a hood by a predetermined amount and hold the hood at the raised position when a running vehicle collides with an obstacle. By lifting the hood, the amount of downward deformation can be increased, and the amount of collision energy absorption can be increased. As this type of vehicle hood device, for example, JP-A-9-3
Japanese Patent Application Publication No. 15266 “Hood device for vehicle” is known, and this technology will be described with reference to the following drawings.

FIGS. 12 (a) to 12 (c) are operation diagrams of a conventional vehicle hood device. The operation of an actuator for lifting a hood by a predetermined amount will be described with reference to FIGS. In (a),
When the vehicle collides with an obstacle, the rod 101 of the actuator 100 starts rising as shown by the arrow. A rod holding means 102 (stopper piece 103, compression spring 104 and holding piece 105) is attached to the rod 101, and the stopper piece 103 projects outside the rod 101 by the compression spring 104. In (b), the rod 101 further rises, and the stopper piece 103 hits the housing 100a of the actuator 100.
One groove 106 is entered.

[0004] In (c), the rod 101 protrudes to the upper limit and raises a hood (not shown) by a predetermined amount. At the same time, the stopper piece 103 climbs over the housing 100a of the actuator 100, and the stopper piece 103
6 protrudes outside the rod 101. For this reason, the stopper piece 103 contacts the surface of the housing 100a and supports the rod 101 to the upper limit, thereby holding the hood at a position lifted by a predetermined amount.

[0005]

However, in order to hold the hood at a position where it has been lifted by a predetermined amount, the rod holding means 1 is required.
02 is a stopper piece 103, a compression spring 104, and a holding piece 1.
The stopper piece 103, the compression spring 104, and the holding piece 105 must be incorporated into the groove 106 of the rod 101. Therefore, the configuration of the vehicle hood device becomes complicated. In addition, since the rod 101 is relatively thin, it takes time to process the groove 106 into the thin rod 101 and to assemble the stopper 103, the compression spring 104, and the holding piece 105 into the groove 106. For this reason, it is difficult to increase the productivity of the vehicle hood device, which causes a cost increase.

On the other hand, when the vehicle collides with an obstacle and raises the rear portion of the hood by a predetermined amount, a pressing force from the front of the vehicle body to the rear of the vehicle body may act on the lifted hood.
In this case, since the rear part of the hood is floating, the hood may move rearward of the vehicle body. For this reason, there is a possibility that the rear portion of the hood may approach the front window glass more than necessary, and it is desirable to adopt a structure in which the rear portion of the hood does not approach the front window glass more than necessary. With this structure, the configuration of the hood device for a vehicle becomes more complicated and causes an increase in cost.

Accordingly, an object of the present invention is to enable the hood to be held at the raised position with a simple configuration and prevent the rear portion of the raised hood from approaching the windshield more than necessary with a simple configuration. It is an object of the present invention to provide a hood device for a vehicle that can perform the above.

[0008]

In order to achieve the above object, a first aspect of the present invention is to provide a bracket on a vehicle body side through a first pin.
A link is swingably attached, a second link is swingably attached to the first link via a connecting pin, and a hood at the front of the vehicle is attached to the second link via a hinge pin. The hood is opened and closed by using a hinge pin connecting the second link and the hood as a hinge center. When an obstacle collides with the vehicle, the hood is lifted by the action of the actuator, and the hood is extended by the extended first and second links. In a hood device for a vehicle provided with a hinge that also serves as a connecting link mechanism so as to determine the ascending position of the first link, the first link is prevented from falling down to the rear of the vehicle after the first and second links are extended by the action of the actuator. When the first link stopper is provided between the first link and the bracket, and the second link falls forward of the vehicle, Characterized in that provided between the second link stopper for engaging the second link of the first link with the second link and the first link.

After the hood is lifted by extending the first and second links, the second link stopper prevents the second link from falling forward of the vehicle. Therefore, the first and second links can be prevented from being folded, and the hood can be held at the raised position. As described above, the hood can be held at the raised position only by providing the second link stopper, so that the configuration can be simplified.

In addition, after the first and second links are extended and the hood is lifted, the first link stopper prevents the first link from falling backward. Therefore, the lifted hood is supported by the first link so as not to move to the rear of the vehicle, and the rear end of the hood can be prevented from approaching the windshield more than necessary. Thus, the first
Only by providing the link stopper, the rear end of the hood can be prevented from approaching the windshield more than necessary, so that the configuration can be simplified.

Further, the first and second link stoppers can be formed integrally with the first and second links and the bracket, so that the processing can be simplified and the processing time can be shortened. In addition, the first and second link stoppers are
Since it is integrally formed with the second link and the bracket, the work of assembling the first and second link stoppers can be eliminated.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, “front” and “rear” follow directions viewed from the driver, and Fr in the figure indicates a front side and Rr indicates a rear side. The drawings should be viewed in the direction of reference numerals.

FIG. 1 is a side view of a vehicle equipped with a vehicle hood device according to the present invention. The vehicle 10 has an engine room 14 formed between left and right front fenders 12 (only the left side is shown), and a vehicle hood device 20 that absorbs an impact is disposed above the engine room 14 and in front of a windshield 16. It is. When the vehicle 10 collides with an obstacle 18, the vehicle hood device 20 lifts the hood 21 at the front of the vehicle to a position indicated by an imaginary line and holds the hood 21 at the raised position. . Hereinafter, the vehicle hood device 20 will be described in detail.

The vehicle hood device 20 includes a front opening hood 21 for closing an upper opening of the engine room 14, and left and right actuators for pushing up the left and right rear ends of the hood 21 to lift the hood 21 to a position indicated by an imaginary line. 24 (only the left side is shown); a bumper sensor 26 for detecting that the vehicle 10 has collided with the obstacle 18; a control unit 29 for transmitting a drive signal to the actuator 24 based on a detection signal from the sensor 26; Left and right hinges (hinge means) 30 (only the left side is shown) that support the left and right rear ends and hold the hood 21 at a lifting position indicated by imaginary lines.

The actuator 24 is a common component for the left and right, and the hinge means 30 is also a common component for the left and right. Less than,
The left actuator 24 and the left hinge means 30 will be described, and the description of the right actuator 24 and the right hinge means 30 will be omitted.

The hood 21 is, for example, an engine room 14
The front part can be opened using the hinge pin at the rear part as a fulcrum for repair and inspection of the vehicle, and a hood lock 22 for locking to the vehicle body frame 17 is attached to the front part.
The actuator 24 is mounted on the vehicle body frame 17 and ignites a gas generating agent of an inflator to generate gas, and the rod 25 is raised by the gas, so that the hood 21 is moved by the rod 25 to the position indicated by an imaginary line. It lifts up to.

FIG. 2 is a side view of the vehicle hood device according to the present invention. The hinge means 30 is obtained by attaching the lower bracket 31 to the vehicle body frame 17, attaching the upper bracket 41 to the rear end of the hood 21, and bridging the first link 50 and the second link 60 between the upper bracket 41 and the lower bracket 31. It is. Hereinafter, the hinge means 30 will be described in detail.

The hinge means 30 is attached to the lower bracket 31 so that the lower end 50a of the first link 50 can swing via a pin 55, and the lower end 60a of the second link 60 is connected to the upper end 50b of the first link 50 by a connecting pin 66. And the upper end 60b of the second link 60 is attached to the upper bracket 41 via a hinge pin 68.

Normally, the hinge means 30 places the mounting portion 64 of the second link 60 on the first stopper 38 of the lower bracket 31 and uses the hinge pin 68 connecting the second link 60 and the hood 21 as a hinge center. When the obstacle 21 collides with the vehicle 10 shown in FIG. 1, the hood 21 is lifted by the action of the actuator 24, and the extended first and second links 50 and 60 determine the ascending position of the hood 21. The hinge is also used as a link mechanism.

In addition, the hinge means 30 includes a first link stopper 53 for preventing the first link 50 from falling down to the rear of the vehicle after the first and second links 50, 60 are extended by the action of the actuator 24. A second link stopper 62 for engaging the second link 60 with the first link 50 is provided on the second link 60 when the first link 50 is provided and the second link 60 falls forward of the vehicle.

FIG. 3 is an exploded perspective view of a hinge means provided in the vehicle hood device according to the present invention. Lower bracket 3
1 includes bolts 32 on the body frame 17 (shown in FIG. 2),
A seat 33 attached at 32 and a body frame 1 from the seat 33
7, a first bent portion 34 extending obliquely upward toward the outside of
A second bent portion 35 vertically raised from the first bent portion 34,
A third bent portion 36 extending obliquely upward from the second bent portion 35 toward the inside of the vehicle body frame 17, and a substantially trapezoidal fourth bent portion 37 vertically raised from the third bent portion 36. And a first bent portion extending upward from the upper end of the fourth bent portion 37 and bent toward the inside of the vehicle body.
A stopper 38, a second stopper 39 adjacent to the first stopper 38, and a stopper claw 40 extending upward from the upper end of the fourth bent portion 37 and bent inside the vehicle body frame 17. The fourth bent portion 37 has a hole 3 for inserting the pin 55.
7a.

The upper bracket 41 is attached to the hood 21 (FIG. 2).
(See FIG. 4), which is formed in a substantially L-shape to be attached to the back surface by bolts 42, 42, and has a hole 43a for inserting a hinge pin 68 at a rear portion of the vertical portion 43;
A stopper 44 made of a bent piece is provided near 3a. The first link 50 is a member formed in a substantially L-shape as shown in FIG. 2. It is a plug-in.

The second link 60 is substantially L-shaped as shown in FIG.
A lower hole 61a into which the connecting pin 66 is inserted is formed in the lower end 60a by a member formed in a letter shape, and a second hole is formed near the lower hole 61a.
A link stopper 62 is provided.
8 is opened, a stopper hole 63 for inserting the stopper claw 40 is opened near the upper hole 61b, and a mounting portion 64 that can be placed on the first stopper 38 of the lower bracket 31 is located near the stopper hole 63. Prepare. The roles of the stoppers 38, 39, 44 and the first and second link stoppers 53, 62 will be described in detail with reference to FIGS.

Next, an example of a procedure for assembling the hinge means 30 will be described with reference to FIG. First, the lower bracket 31
With the bolts 32, 32 (shown in FIG. 2)
Attach to The pin 55 is inserted into the lower hole of the first link 50, and the pin 55 is inserted into the hole 37 a of the lower bracket 31 and swaged. Thereby, the first link 50 is swingably attached to the lower bracket 31. Next, a hinge pin 68 is inserted into the hole 43a of the upper bracket 41, and the hinge pin 68 is inserted into the upper hole 61b of the second link 60.
And crimp it. As a result, the second link 60 is swingably attached to the upper bracket 41.

Next, the stopper pawl 40 is inserted into the stopper hole 63 of the second link, and the first
The link 50 and the second link 60 are connected, and a connecting pin 66 is connected.
Caulking. Thus, the first link 50 and the second link 60 are swingably connected to each other, and the stopper link 40 connects the second link 60 to the lower bracket 31.
Finally, the upper bracket 41 is attached to the hood 21 (shown in FIG. 2) with bolts 42,42. Thus, the assembly of the hinge means 30 is completed.

The hinge means 30 is provided in the first position shown in FIG.
In the folded state of the second links 50 and 60, the placing portion 64 of the second link 60 can be placed on the first stopper 38 of the lower bracket 31. For this reason,
The downward movement of the second link 60 is regulated by the first stopper 38, so that the hood 21 can be supported in a stable state.

As shown in FIG. 2, the hinge means 30 is provided with a stopper claw 40 for connecting the second link 60 to the lower bracket 31. The stopper claw 40 is disengaged from the second link 60 when the actuator 24 is actuated, but has a rigidity to maintain the coupled state with a normal hood opening / closing force, and can prevent the hood 21 from floating in a normal state. .

The hinge means 30 tilts the second link 60 downward toward the front of the vehicle by arranging the second link 60 along the slope 31a of the lower bracket 31 as shown in FIG. be able to. For this reason, the mounting position of the pin 55 of the lower bracket 31 can be set relatively high from the vehicle body frame 17 (shown in FIG. 2). Accordingly, the shape of the lower bracket 31 can be determined so that the lower bracket 31 is easily crushed when an obstacle hits the hood 21. The shape of the lower bracket 31 will be described in detail with reference to FIG.

FIG. 4 is a sectional view taken along line 4-4 of FIG. The lower bracket 31 is a member formed of, for example, mild steel,
The bent portion 35, the third bent portion 36, and the fourth bent portion 37 were bent into a substantially U-shaped cross section so as to be easily crushed. For this reason,
When a load is applied to the lower bracket 31 from above,
The second bent portion 35, the third bent portion 36, and the fourth bent portion 37 can be crushed to absorb an impact.

The fourth bent portion 3 of the lower bracket 31
7 shows a state where the first link 50 is attached to the upper bracket 41 with the pin 55, the stopper claw 40 of the lower bracket 31 is inserted into the stopper hole 63 of the second link 60, and the second link 60 is attached to the upper bracket 41 with the hinge pin 68.

The stopper claw 40 is a member formed of the same mild steel as the lower bracket 31 and can maintain a normal hood opening / closing force and a connected state inserted into the stopper hole 63 during normal vehicle running. It is a member whose rigidity is set so as to be deformed and come off from the stopper hole 63 when activated.

For this reason, the second link 6 is
0 to the lower bracket 31, that is, by inserting the stopper claw 40 into the stopper hole 63,
The extension of the second link 50, 60 can be prevented, so that the hood 21 can be prevented from floating in a normal state.

FIGS. 5A and 5B are first operation explanatory views of the hood device for a vehicle according to the present invention. An example in which the hood is opened for repair and inspection of the engine room will be described. (A)
In this case, the first and second links 50 and 60 are kept in a folded state by inserting the stopper claw 40 into the stopper hole 63, and in this state, the hood lock mechanism 2 at the front portion of the hood 21 is provided.
2 (shown in FIG. 1) is released, and the hood 21 is opened as indicated by the arrow with the hinge pin 68 on the rear end side as an axis.

In (b), the hood 21 is opened to the fully open position, so that the stopper 4
4 contacts the first stopper 38 of the lower bracket 31 to regulate the opening of the hood 21. In this case, the second link 60
A force is applied to rotate the stopper pawl 40 clockwise about the hinge pin 68 as an axis.
, The rotation of the second link 60 can be prevented. By opening the hood 21, maintenance and inspection of the equipment in the engine room can be performed from above.

Next, the operation of the vehicle hood device 20 will be described. First, returning to FIG. 1, when the vehicle 10 collides with the obstacle 18 while traveling, the bumper sensor 26 detects the collision and transmits a detection signal from the sensor 26 to the control unit 29. A drive signal is transmitted from the control unit 29 to the actuator 24, and a gas pressure is applied to the actuator 24 so as to cause the rod 25 to protrude. When the gas pressure acts on the rod 25 of the actuator 24, the rod 25 is instantaneously raised by the gas pressure, and a lifting force of F1 is applied to the hood 21 as indicated by an arrow.

Next, as shown in FIG.
Is applied, a force F2 for lifting the stopper claw 40 upward through the upper bracket 41, the hinge pin 68, and the stopper hole 63 of the second link 60 is applied. Thereby, the stopper claw 40 is deformed so as to extend upward and is removed from the stopper hole 63.

FIGS. 6 (a) and 6 (b) are second operation explanatory views of the vehicle hood device according to the present invention, and FIG. 6 (b) is a sectional view taken along the line bb in FIG. 6 (a). In FIG.
When 0 is removed from the stopper hole 63, the second link 60 swings counterclockwise around the connecting pin 66, and at the same time, the first link 50 swings clockwise around the pin 55. Therefore, the first and second links 5
When 0 and 60 start to extend, the hood 21 is raised about the hood lock mechanism 22 (shown in FIG. 1) as an arrow. (B) shows a state where the stopper claw 40 is deformed by extending upward and comes out of the stopper hole 63.

FIGS. 7 (a) and 7 (b) are diagrams illustrating a third operation of the vehicle hood device according to the present invention. In (a),
The hood 21 is continuously lifted by the lifting force F1 of the rod 25 as shown by the arrow. As the hinge pin 68 rises,
The first and second links 50 and 60 are extended halfway.

In (b), the first and second links 50,
By completely extending 60, the pin 55, the connecting pin 66, and the hinge pin 68 are located on the straight line 70. As a result, the rise of the hood 21 is restricted by the first and second links 50 and 60, and the hood 21 is stopped at the upper limit position P1.

After the hood 21 comes to a standstill, the hood attempts to descend by its own weight. Therefore, the weight of the hood 21 is applied to the first and second links 50 and 60, and the first and second links 50 and 60 are to be folded. However, since the pin 55, the connecting pin 66, and the hinge pin 68 are located on the straight line 70, even if the weight of the hood 21 is applied, the first
-The second links 50 and 60 are not folded. For this reason,
The hood 21 can be held by the first and second links 50 and 60.

In this state, if the obstacle 18 falls on the hood 21, an external force F3 is applied as shown by an arrow, and the hood 21 is depressed. As a result, the external force F4 is applied to the hinge pin 68 as indicated by the arrow.
Acts on the second link 60 about the connecting pin 66 to try to fall forward as shown by the arrow. At this time, the second
The second link stopper 62 of the link 60 is
The second link 60 to the first link 50
To be engaged. Therefore, it is possible to prevent the second link 60 from falling forward of the vehicle.

On the other hand, when a force is exerted on the first link 50 to move the first link 50 backward with the pin 55 as an axis, the first link 50 of the first link 50 is applied to the second stopper 39 of the lower bracket 31.
By hitting the link stopper 53, the first link 50 can be prevented from falling backward of the vehicle.

When the hood 21 is lifted by extending the first and second links 50 and 60, the pin 55, the connecting pin 66 and the hinge pin 68 are positioned on the straight line 70, and
The first and second links 50 and 60 are prevented from being folded by the own weight of 1. In addition, when the obstacle 18 falls on the hood 21, the second link 60
Prevents the vehicle from falling forward of the vehicle. Therefore, the first and second links 50 and 60 can be prevented from being folded, and can be held at the upper limit position P1 where the hood 21 is lifted. As described above, the hood 21 can be held at the raised position only by providing the second link stopper 62, so that the configuration of the mechanism for holding the hood 21 can be simplified.

The first and second link stoppers 53, 6
2 can be formed integrally with the first and second links 50 and 60, so that processing can be simplified and the processing time can be shortened. In addition, the first and second link stoppers 5
Since the first and second links 3 and 62 are formed integrally with the first and second links 50 and 60, the work of assembling the first and second link stoppers 53 and 62 can be eliminated.

FIG. 8 is an explanatory view of a fourth operation of the vehicle hood device according to the present invention. By raising the hood 21 by a predetermined amount from the position shown by the imaginary line to the position shown by the solid line, the distance from the hood 21 to the equipment 19 such as the engine housed in the engine room 14 can be increased. Therefore, the amount of downward deformation of the hood 21 can be sufficiently ensured. For this reason, even if the obstacle 18 falls on the hood 21 and an external force F3 is applied as indicated by an arrow, a large recess 21a of the hood 21 can be secured as indicated by an imaginary line. Therefore, the impact on the obstacle 18 can be reliably absorbed.

In addition, as shown in FIG. 4, the second bent portion 35, the third bent portion 36, and the fourth bent portion 3 of the lower bracket 31 are provided.
Seven parts were bent into a substantially U-shaped cross section to make them easily crushed.
Therefore, when the obstacle 18 falls on the hood 21 and receives an external force F3 as shown by an arrow, the second bent portion 35, the third bent portion 36, and the fourth bent portion 37 are crushed to absorb the impact. be able to. Therefore, the impact applied to the obstacle 18 can be more reliably absorbed.

Even if the amount of dent of the hood 21 is increased as indicated by the imaginary line, the dent 21a does not hit the equipment 19 in the engine room.
Can be protected from

Next, the operation of the vehicle hood device 20 when the vehicle 10 collides with an obstacle such as a wall will be described with reference to FIGS. FIG. 9 is an explanatory view of a fifth operation of the vehicle hood device according to the present invention, and shows a relatively strong obstacle 8 such as a wall.
0 indicates that the vehicle 10 has collided. When the vehicle 10 collides with the obstacle 80, a drive signal is transmitted from the control unit 29 to the actuator 24 based on the detection signal of the bumper sensor 26, and the rear of the hood 21 is lifted by the actuator 24. When the first and second links 50 and 60 are extended, the pins 55 and
The connecting pin 66 and the hinge pin 68 are located on the straight line 70. Therefore, the first and second links 50 and 60 are prevented from being folded, and the hood 21 is held at the raised position. At this time, when the engine room 14 of the vehicle 10 is deformed, the hood 21 is pushed to the rear of the vehicle, and the second link 60
To the rear of the vehicle about the connecting pin 66
5 works.

FIG. 10 is a view for explaining the sixth operation of the vehicle hood device according to the present invention. When the external force F5 acts on the second link 60, the second link 60 falls down around the connecting pin 66 toward the rear of the vehicle. Next, a force F6 that causes the first link 50 to fall to the rear of the vehicle around the pin 55 acts on the connection pin 66. At this time, since the first link stopper 53 of the first link 50 is in contact with the second stopper 39 of the lower bracket 31, it is possible to prevent the first link 50 from falling backward of the vehicle.

Therefore, it is possible to restrict the tip of the upper bracket 41 attached to the hood 21, that is, the stopper 44 from moving rearward of the vehicle. Therefore, the stopper 44 of the upper bracket 41 does not approach the front window glass 82 more than necessary.

After the first and second links 50 and 60 are extended, the first link stopper 53 prevents the first link 50 from falling backward. Therefore, lifted hood 2
1 is supported by the first link 50 so as not to move rearward of the vehicle, and the rear end of the hood 21, that is, the upper bracket 41
Can be prevented from approaching the front window glass 82 more than necessary. As described above, the rear end of the hood 21 can be prevented from unnecessarily approaching the front window glass 82 by merely providing the first link stopper 53 that contacts the second stopper 39 of the lower bracket 31, so that the configuration is simplified. Can be

FIG. 11 is an explanatory view of a seventh operation of the vehicle hood device according to the present invention. By restricting the movement of the stopper 44 of the upper bracket 41 to the rear of the vehicle,
With the deformation of the engine room 14 of the vehicle 10, the hood 2
The center of 1 rises and deforms into a mountain shape. Thus, when the vehicle 10 collides with the obstacle 80, the engine room 1
The deformation of the hood 4 and the hood 21 can absorb the impact force due to the collision.

In the above-described embodiment, an example in which the first link stopper 53 is provided on the first link 50 has been described. However, the first link stopper 53 is provided between the first link 50 and the lower bracket 31. The first link stopper 53 may be provided on the lower bracket 31. Further, the example in which the second link stopper 62 is provided on the second link 60 has been described.
The second link stopper 62 may be provided on the first link 50 as long as it is provided between the link 60 and the first link 50. Furthermore, although the lower bracket 31 has been described as an example of a member formed of mild steel, the material can be appropriately selected.

In the above embodiment, the actuator 24
And hinge means 30 on the left and right sides of body frame 17 respectively.
Although the example in which the individual parts are attached has been described, the actuator 24 and the hinge means 30 may be attached to only one side of the body frame 17. As a result, the number of parts can be further reduced, and cost increase can be further suppressed. Further, although the actuator 24 is attached to the vehicle body frame 17, for example, the actuator 24 may be attached to the hood 21 side.

In the above embodiment, the rod 25 of the actuator 24 is moved until the hood 21 reaches the upper limit position P1.
In the example described above, the actuator 24
The hood 21 may be kicked up by the rod 25. Since the stroke of the rod 25 can be reduced, the size of the actuator 24 can be reduced.

[0056]

According to the present invention, the following effects are exhibited by the above configuration. According to the first aspect, after the first and second links are extended and the hood is lifted, the second link stopper prevents the second link from falling forward of the vehicle. Therefore, the first and second
The hood can be held in the raised position by preventing the link from being folded. As described above, the hood can be held at the raised position only by providing the second link stopper, so that the configuration can be simplified. Therefore,
Productivity can be increased and costs can be reduced.

In addition, after the first and second links are extended and the hood is lifted, the first link stopper prevents the first link from falling backward. Therefore, the lifted hood is supported by the first link so as not to move to the rear of the vehicle, and the rear end of the hood can be prevented from approaching the windshield more than necessary. Thus, the first
Only by providing the link stopper, the rear end of the hood can be prevented from approaching the windshield more than necessary, so that the configuration can be simplified. Therefore,
Productivity can be increased and costs can be reduced.

Further, the first and second link stoppers can be formed integrally with the first and second links and the bracket, so that the processing can be simplified and the processing time can be shortened. In addition, the first and second link stoppers are
Since it is integrally formed with the second link and the bracket, the work of assembling the first and second link stoppers can be eliminated. Therefore, the productivity of the hood device for a vehicle can be increased, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle equipped with a vehicle hood device according to the present invention.

FIG. 2 is a side view of the vehicle hood device according to the present invention.

FIG. 3 is an exploded perspective view of hinge means provided in the vehicle hood device according to the present invention.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 2;

FIG. 5 is an explanatory view of a first operation of the vehicle hood device according to the present invention.

FIG. 6 is an explanatory view of a second operation of the vehicle hood device according to the present invention.

FIG. 7 is a diagram illustrating a third operation of the vehicle hood device according to the present invention.

FIG. 8 is an explanatory view of a fourth operation of the vehicle hood device according to the present invention.

FIG. 9 is a diagram illustrating a fifth operation of the vehicle hood device according to the present invention.

FIG. 10 is an explanatory view of a sixth operation of the vehicle hood device according to the present invention.

FIG. 11 is an explanatory view of a seventh operation of the vehicle hood device according to the present invention.

FIG. 12 is an operation diagram of a conventional vehicle hood device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Vehicle, 17 ... Body (body frame), 18 ... Obstacle, 20 ... Vehicle hood holding device, 21 ... Hood, 24
... actuator, 30 ... hinge (hinge means), 31
... bracket (lower bracket), 50 ... 1st link,
53: first link stopper, 55: pin, 60: second link, 62: second link stopper, 66: connecting pin, 6
8. Hinge pin.

Claims (1)

[Claims] 1. A first bracket attached to a bracket on the vehicle body side via a pin.
A link is swingably attached, a second link is swingably attached to the first link via a connecting pin, and a hood at the front of the vehicle is attached to the second link via a hinge pin. The hood is opened and closed by using a hinge pin connecting the second link and the hood as a hinge center. When an obstacle collides with the vehicle, the hood is lifted by the action of the actuator, and the hood is extended by the extended first and second links. In a hood device for a vehicle provided with a hinge that also serves as a connecting link mechanism so as to determine the ascending position, the first link is prevented from falling down to the rear of the vehicle after the first and second links are extended by the action of the actuator. When the first link stopper is provided between the first link and the bracket, and the second link falls forward of the vehicle, A hood device for a vehicle, wherein a second link stopper for engaging the second link with the first link is provided between the second link and the first link.