JP2549594Y2 - Hinge device for front hood of automobile - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device for a front hood for reducing damage to a vehicle body, particularly a windshield during a collision.

[0002]

2. Description of the Related Art A front hood 6 of an automobile is opened and closed by a hinge device attached to the left and right of the front hood 6 below the windshield 4.
(See FIG. 4).
As shown in FIG. 5, these hinge devices are attached to a lower hinge 102 fixed to a vehicle body 8 with a stopper 108, and a front hood is provided.
The upper hinge 104 fixed to the door 6 is rotatably fixed to the pin 110. The upper hinge 104 has an opening 1
When the front hood 6 was closed and the front hood 6 was closed, the hook 106 inserted by the head 114 into the opening 112 was fixed to the vehicle body 8 in parallel with the lower hinge 102.

[0003] When a vehicle receives an impact from the front due to a collision or the like, the front hood 6 is bent into a U-shape. At this time, the hinge device constructed as described above is used. Moment due to the offset is poor, and the upper hinge 104 is deformed so that the tip is expanded with the pin 110 as a center with respect to the lower hinge 102. Therefore, the hook 106 and the opening 112 of the upper hinge 104 are formed.
And the front hood 6 is disengaged from the front glass 4
In addition to this, there is a fear that the apparatus will enter the apparatus, and the number of parts is large.

Therefore, in a front hood hinge (see FIG. 6) disclosed in Japanese Utility Model Laid-Open Publication No. 63-117880, an upright portion 20 is provided on one side surface of a base plate 18 and a surface intersecting the upright portion 20. A stop portion 22 is formed, and an opening 3
The lower hinge 10 having the opening 2 is fixed to the vehicle body 8 and has an upper hinge 14 including a fixing portion 26 fixed to the front hood 6 and a mounting portion 28 having an extended portion 30 connected to the fixing portion 26. When the front hood 6 is closed, the extended portion 30 of the upper hinge 14 is inserted into an opening 32 formed in the locking portion 22. When a force in the glass direction is applied from the front due to the collision of the vehicle, the extending portion 30 enters the opening 32 and the locking portion 2
2, a front hood hinge has been proposed which prevents further forward projection and prevents the front hood 6 from projecting toward the glass 4.

[0005]

However, in the front hood hinge proposed in the above-mentioned publication, the base plate 18 of the lower hinge is surrounded by the upright portion 20 and the locking portion 22 on two sides. When the operation of attaching the vehicle body 18 to the vehicle body is a difficult operation, and when a force from the front of the vehicle body 8 is applied, all the forces are applied to the front portion of the lower hinge 10, that is, the direction of the locking portion 22, and the hinge mounting portion Is inconvenient. Further, the weight of the lower hinge is increased in order to ensure the strength of the standing portion 20 and the locking portion 22.

Therefore, the present invention can reliably prevent the front hood from projecting toward the windshield in the event of an impact, and has a good assembling workability and is lightweight and economical. Is provided.

[0007]

A vehicle hood hinge device according to the present invention is provided with a base plate having holes for fasteners for attachment to a vehicle body at both end portions, and standing on the base plate. A leaf mounting portion, the lower portion of the leaf mounting portion being cut off at the center in the longitudinal direction, and a locking hole formed in a connecting portion between the base plate and the leaf mounting portion and penetrating in the longitudinal direction. A lower hinge having a hinge stopper protruding from the wall surface of the leaf mounting portion, an upper hinge having a projection protruding from the distal end portion, and a notch formed by extending a lower edge and forming a hook shape. It is provided with a movably connected configuration.

[0008]

When the lower hinge and the upper hinge are rotatably connected, the notch portions of the upper hinge correspond to the locking holes, and prevent the upper hinge from being moved by a force from the front. Then, when the upper hinge is rotated with respect to the lower hinge,
The projection at the tip of the upper hinge engages with the hinge stopper of the lower hinge to restrict further rotation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 are explanatory views of the construction of the hood hinge device according to the present invention. The hinge device has a lower hinge 50 (see FIG. 1) attached to the vehicle body and an upper hinge 70 (see FIG. 2) attached to the hood side. The lower hinge 50 is the body 8
A base plate 52 having holes 51 for inserting mounting stoppers into the base plate at both ends in the longitudinal direction, and a leaf mounting portion 54 provided on one side in the longitudinal direction of the base plate 52 are provided. The leaf mounting portion 54 is a substantially triangular plate having a projection 56 projecting from the top. A cut-and-raised flange portion 58 is provided at the center of the lower portion of the leaf mounting portion 54 so as to protrude toward the base plate 52 side.
A locking hole 59 penetrating in the longitudinal direction of the base plate 52 is formed. A bolt is attached to the upper part of the cutting and raising flange portion 58 to form a hinge stopper 60, and the hinge stopper 60
A pin hole 62 is formed in the upper part of.

[0010] The upper hinge 70 is a lead of the lower hinge 50.
It has a plate-shaped leaf portion 72 to be mounted on the hood mounting portion 54, and a hood mounting portion 74 continuously provided at a right angle to the leaf portion 72. The protruding portion 78 is formed by protruding a part of the circular shape at the tip of the leaf portion 72 and projecting a part of the circular shape. Leaf part 72
Is formed with a pin hole 76 at the tip end, and a recess 75 is formed at the upper shoulder. The notch 80 is formed by extending the lower edge of the leaf 72 in a hook shape. The hood attachment portion 74 is connected to the rear half of the leaf portion 72 and has a hole 82 for inserting a stopper for attaching the hood attachment portion 74 to the hood.

The assembly of the hinge device configured as described above will be described. The base plate 52 of the lower hinge 50 is attached to the vehicle body 8. The leaf portion 72 of the upper hinge 70 is overlapped with the leaf mounting portion 54 of the lower hinge 50 so that the pin hole 76 and the pin hole 62 are aligned with each other, and both pins are rotatably pinned with a fixing pin. The projection 78 of the leaf portion 72 is formed by the lower hinge 50.
Until the upper hinge 70 is engaged with the hinge stopper 60
(In a state shown by a chain line in FIG. 3). Upper hinge 7
The hood mounting portion 74 is attached to the hood 6. The work of assembling the hinge device to the vehicle body 8 and the front hood 6 is simple because the base plate 52 and the hood mounting portion 74 are flat, and the fastening operation of the stopper is simplified, and the upper hinge 70 is assembled. The work is further facilitated because the front hood 6 is expanded.

Next, the operation of the hinge device will be described. The upper hinge 70 indicated by a solid line in FIG. 3 indicates the time when the hood 6 is closed. When the hood 6 is closed, a notch portion 80 continuously provided on the lower edge of the leaf portion 72 is inserted into the locking hole 59 of the cut-out and flange portion 58 of the lower hinge 50, and the closed state of the front hood 6 is maintained. I do. When an impact is applied from the front of the vehicle, the engagement of the notch portion 80 and the cut-out flange portion 58 prevents further movement of the front hood 6 in the direction of the windshield 4. When the front hood 6 is expanded, the leaf portion 72 of the hinge device is moved to the position shown in FIG.
The state shown by the broken line is obtained. At this time, the protruding portion 78 at the tip of the leaf portion 72 engages the hinge stopper 60 to prevent further rotation of the upper hinge 70, and keeps the front hood 6 at an appropriate widening angle.

[0013]

According to the hinge device of the present invention, when the front hood is closed, the notch portion of the upper hinge is engaged with the locking hole of the flange portion of the lower hinge to maintain the closed state. Then, with respect to an impact from the front due to an automobile collision or the like, the engagement between the notch portion and the locking hole becomes more reliable, and further movement of the front hood toward the windshield is prevented. Since the cut and raised flange portion of the lower hinge of the present invention is located almost at the center of the mounting portion to the vehicle body, a strong impact force such as a collision force is received by the entire base plate, and locally at one location. No force is applied, and the material of the entire hinge can be reduced in weight. When the lower hinge and the upper hinge are attached to the vehicle body and the front hood, the portion for fastening the stopper is plate-shaped, and the projection of the leaf portion and the hinge stopper of the lower hinge engage with the hinge. Can be stopped at a constant spread angle,
The work of fastening the upper hinge to the front hood becomes easy, and the efficiency of the fastening operation can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a lower hinge.

FIG. 2 is a perspective view of an upper hinge.

FIG. 3 is an explanatory view of the operation of the hinge device.

FIG. 4 is an overall view of an automobile.

FIG. 5 is an explanatory view of a conventional hinge device.

FIG. 6 is an explanatory view of another conventional hinge device.

[Explanation of symbols]

 Reference Signs List 4 front glass 6 front hood 8 vehicle body 50 lower hinge 52 base plate 54 leaf mounting portion 56 projection 58 cut and raised flange portion 59 locking hole 70 upper hinge 72 leaf portion 74 hood mounting portion 78 projection 80 Notch

Claims (1)

(57) [Scope of request for utility model registration] 1. A hinge device in which a lower hinge mounted on a vehicle body and an upper hinge mounted on a front hood are rotatably connected to each other, wherein the lower hinge has holes formed at both ends thereof with holes for mounting fasteners to the vehicle body. A base plate and a leaf mounting portion which stands on the base plate. The lower portion of the leaf mounting portion is cut off at the center in the longitudinal direction to connect the base plate and the leaf mounting portion. And a hinge stopper projecting from a wall surface of the leaf mounting portion. The upper hinge has a projection projecting from a tip end portion, and a lower edge extending into a hook shape. When the lower hinge and the upper hinge are rotatably connected,
The notch portion of the upper hinge corresponds to the locking hole, and when the upper hinge is rotated with respect to the lower hinge, the projection at the tip of the upper hinge engages with the hinge stopper of the lower hinge. apparatus.