KR100578054B1 - Impact absorption structure of automobile hood hinge - Google Patents

Abstract

The present invention relates to a shock absorbing structure of a hood hinge for a vehicle to minimize the pedestrian's injury by making the shock absorbing itself when the car collides with the pedestrian while driving, the characteristic configuration is the engine room of the car The first bracket 20 is fixed to the upper portion of the cowl panel 10 via the bolt 11 so as to be located on the rear upper side of the cowl panel 10 and a first guide hole 22 is formed on the side thereof, and a hood covering the engine room ( The second bracket 30 fixed to the bottom surface of the rear end of the hood 12 by the bolt 13 so that the 12 is rotated and opened, and the hinge 21 fixed to the rear end of the first bracket 20. A first link 40 having one end fixed to the second link and the other end fixed to the rear end of the second bracket 30 via the second movable hinge 31, and a first guide formed on the first bracket 20. One end is fixed through the first movable hinge 23 fitted in the long hole 22 A second link 41 having the other end fixed to the front end of the second bracket 30 via the third movable hinge 32 and a second end fixed to the other end via the first movable hinge 23 and formed at the other end. The guide hole 43 includes a third link 42 into which the fourth movable hinge 44 provided at the center of the first link 40 is fitted.

Automobile, hood hinge, hood arm, link, guide mechanic, shock absorbing structure

Description

Impact absorption structure of automobile hood hinge}

1 is a front perspective view of a vehicle showing a state in which a hood is opened in a vehicle equipped with a hood hinge.

Figure 2 is a perspective view showing a conventional hood hinge.

3 is a cross-sectional view showing a shock absorbing structure of the hood hinge according to the present invention.

4 and 5 are cross-sectional views showing the operating state of the shock absorbing structure of the hood hinge according to the present invention.

※ Explanation of symbols about main part of drawing ※

10: cowl panel 11, 13: bolt

12: hood 20: first bracket

21: fixed hinge 22: the first guide officer

23: first movable hinge 30: second bracket

31: second movable hinge 32: third movable hinge

40: first link 41: second link

42: third link 43: second guide officer

44: fourth movable hinge

The present invention relates to a shock absorbing structure of a hood hinge for a vehicle, and more particularly, to a shock absorber is made when the car collides with a pedestrian while driving, thereby minimizing the injury of a pedestrian. It relates to a shock absorbing structure.

In general, a vehicle is provided with a hood panel for shielding the engine room. One side of such a hood panel is provided with a hood lock for fixing the hood panel to the vehicle body, the hood lock is to be operated by connecting to the release lever mounted in the interior and the spring.

As described above, when the release lever connected to the hood lock is manipulated, the tip of the hood panel is slightly raised to the upper part, and then a hand is released between the vehicle body and the hood panel to release the auxiliary lever to open the hood panel.

In the open state of the hood panel, the hood panel is maintained by using hood holders provided on both sides of the hood panel. In addition, a hood hinge is provided at both sides of the hood panel, and the hood panel is opened and closed by the hood hinge.

Meanwhile, the hood hinge has a pin hinge type and a link hinge type, and the pin hinge type has a simple structure and a small number of components, and is used in a small and light vehicle, and the link hinge type is mainly used in a heavy hood vehicle.

1 is a front perspective view of a vehicle in which a hood is opened in a vehicle having a hood hinge, and FIG. 2 is a perspective view of a conventional hood hinge.

As referred to herein, an engine room 1 is formed at the front of the vehicle to mount an engine, a transmission, and various devices required for driving the vehicle, and a hood 2 is provided to protect the engine room 1 from the outside. ) Is installed to be openable.

The hood 2 is rotatable upward through a hood hinge 3 provided at its rear end, and the structure of the hood hinge 3 is well shown in FIG. 2.

As shown in FIG. 2, the hood hinge 3 is mainly composed of a hood arm 4, a hood bracket 5, and a hinge pin 6. The hood arm 4 is fixedly installed at one side of the hood 2, the hood bracket 5 is fixedly installed at one side of the vehicle body corresponding to the hood arm 4, and the hinge pin 6 is The hood arm 4 and the hood bracket 5 are rotatably connected to each other.

Therefore, when the hood 2 is opened, the hood arm 4 integrally coupled with the hood 2 is rotated using the hinge pin 6 as the rotation center. By the way, the hood 2 is a heavy body having a considerable self-weight and is rotated obliquely in a shape having a high tip and a low rear end so that the center of gravity of the hood 2 is moved toward the hood hinge 3 when the hood 2 is opened.

Thus, the hinge pin coupling portion 6a, to which the hood arm 4 and the hood bracket 5 are coupled to each other, should naturally have strong rigidity.

However, in the conventional hood hinge structure as described above, the hinge pin coupling portion to which the hood arm and the hood bracket are coupled is configured to be too strong, so that the impact energy of the human head collides with the hood hinge. It is passed on to people and puts them in a very dangerous situation.

In other words, when a pedestrian collides with a car, the pedestrian normally collides with the front bumper of the car first, and then falls back toward the hood of the car, causing the second collision again. At this time, the head of the pedestrian collides with the hood hinge. There is a problem of severe injury.

The present invention has been proposed to solve the problems described above, the object of which is that the space is formed while the rear end of the hood is moved upward in the accident that the pedestrian falls toward the hood of the car and the head collides with the installation portion of the hood hinge. The present invention provides a shock absorbing structure of a hood hinge for an automobile to reduce the amount of impact delivered to a pedestrian by absorbing the impact energy.

The present invention for achieving the above object is a shock absorbing structure of the hood hinge for the vehicle is fixed to the upper portion of the cowl panel via a bolt so as to be located on the rear upper side of the engine room of the vehicle, the first guide hole is formed on the side A bracket, a second bracket fixed to the bottom of the rear end of the hood by means of a bolt so that the hood covering the engine room can be rotated and opened, and one end is fixed to the rear end of the first bracket by a medium. One end of the second link is fixed to the rear end of the second bracket via the second movable hinge and the first movable hinge fitted to the first guide hole formed in the first bracket and the front end of the second bracket. A second link having the other end fixed to the second movable hinge via a third movable hinge, and a second guide hole formed at the other end thereof fixed to the second movable medium via the first movable hinge installed at the center of the first link. 4, the movable hinge is the hayeoseo a third link fitted.

Hereinafter, the present invention having such characteristics will be described in detail.

3 is a cross-sectional view showing a shock absorbing structure of the hood hinge according to the present invention, Figures 4 and 5 is a cross-sectional view showing the operating state of the shock absorbing structure of the hood hinge according to the present invention.

As referred to herein, the first bracket 20 is fixed to the upper part of the cowl panel 10 via a bolt 11 so as to be located at the rear upper side of the engine room of the automobile, and the first bracket ( The first guide hole 22 is formed in the side surface of 20).

On the other hand, the second bracket 30 is fixed to the bottom surface of the rear end of the hood 12 to cover the engine room via the bolt 13, the fixed hinge 21 to the rear end of the first bracket 20. Is installed, one end of the first link 40 is connected to the fixed hinge 21, the other end of the first link 40 is the second movable hinge (2) installed at the rear end of the second bracket (30) 31).

In addition, a first movable hinge 23 is inserted into the first guide hole 22 formed in the first bracket 20, and one end of the second link 41 is connected to the first movable hinge 23. The other end of the second link 41 is connected via a third movable hinge 32 provided at the front end of the second bracket 30.

One end of the third link 42 is connected to the first movable hinge 23, and a second guide hole 43 is formed at the other end of the third link 42. A fourth movable hinge 44 provided in the center portion of the first link 40 is fitted into the 43.

The operation of the present invention having the above configuration is as follows.

First, when the vehicle runs normally, that is, when no impact force is applied to the hood, the hood 12 is blocked by the bracket and the plurality of links as shown in FIG. 3.

In this state, when an impact force is applied to the hood 12 as shown in FIG. 4, the second link 41 connected to the front end of the hood 12 is pushed downward so that one end of the second link 41 is connected. The first movable hinge 23 is to move along the first guide hole 22.

When the first movable hinge 23 is moved, one end of the third link 42 connected to the first movable hinge 23 is moved together so that the other end of the third link 42 is moved upward. .

As such, when the other end of the third link 42 is moved upward, the first link 40 is moved, and one end of the first link 40 is fixed to the first bracket 20. It is fixed by the media to be rotated clockwise in the drawing.

As described above, when the first link 40 is rotated in the clockwise direction, the rear side of the second bracket 30 and the hood 12 to which the other end of the first link 40 is connected is upward as shown in FIG. 5. Since the space is formed between the hood 12 and the engine room, the injury value due to the secondary collision of the pedestrian can be minimized.

As described above, according to the shock absorbing structure of the hood hinge for a vehicle according to the present invention, even if an accident occurs when a pedestrian collides with the hood, the rear side of the hood is moved upwards to absorb the collision energy at the bottom of the hood. Because it is formed, there is a unique effect that can protect the pedestrians.

Claims (1)

The first bracket 20 is fixed to the upper part of the cowl panel 10 via a bolt 11 so as to be located at the rear upper side of the engine room of the vehicle, and the first guide hole 22 is formed on the side thereof. A second bracket 30 fixed to the bottom surface of the rear end of the hood 12 by a bolt 13 and a rear end of the first bracket 20 so that the cover hood 12 can be rotated and opened. One end is fixed via the hinge 21 and the other end is fixed to the first link 40 via the second movable hinge 31 at the rear end of the second bracket 30, and the first bracket 20 A second link having one end fixed via a first movable hinge 23 fitted in the formed first guide hole 22 and the other end fixed to the front end of the second bracket 30 by a third movable hinge 32 A fourth movable hinge installed at the center portion of the first link 40 is formed at the second guide hole 43 formed at the other end and fixed at one end via the first movable hinge 23 and 41. Shock absorbing structure of a hood hinge for an automobile, characterized in that it comprises a third link (42) fitted with (44).

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