JPH0544765U - Hinge device for automobile front hood - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] When an automobile receives an impact, a hinge device that prevents the front hood from projecting toward the windshield and is easy to assemble can be obtained. [Structure] A flange on which a hinge stopper is mounted upright on one side of a base plate 52 mounted on the vehicle body to mount a hinge stopper on a wall surface, and a locking hole is formed by cutting and raising and penetrating in the longitudinal direction. The upper hinge 70, which is rotatably connected to the lower hinge 50 formed by providing the portion 58, engages with the notch portion 80 extending in a hook shape at the lower end edge corresponding to the locking hole of the lower hinge and the hinge stopper at the time of rotation. In a hinge device including a leaf portion 72 having a protruding portion 78 and a hood mounting portion that is fixed to a front hood that is connected to the leaf portion 72, the notch portion 80 of the upper hinge has a notch portion 80 of the lower hinge when a front collision occurs. Engages in the locking hole to prevent movement of the upper hinge. Further, by rotating the upper hinge, the protrusion 78 locks the hinge stopper of the lower hinge 50, whereby the upper hinge 70 is restricted from further rotating.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

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

[0002]

[Prior Art]

 The opening and closing of the front hood 6 of the automobile was carried out by rotatably supporting the front hood 6 with respect to the vehicle body 8 by means of hinge devices attached to the left and right of the front hood 6 below the windshield 4 (Fig. 4). As shown in FIG. 5, in these hinge devices, a lower hinge 102 fixed to a vehicle body 8 with a stopper 108 and an upper hinge 104 fixed to the front hood 6 are rotatably fixed to a pin 110. An opening 112 is bored in the upper hinge 104, and when the front hood 6 is closed, a hook 106 into which the head 114 is inserted is laid flat on the lower hinge 102 and fixed to the vehicle body 8.

When an automobile receives an impact from the front due to a collision or the like, the front hood 6 is bent into a dogleg shape. At this time, the hinge device configured as described above is used. Has a bad moment due to the offset, and the upper hinge 104 is deformed such that the tip is expanded with respect to the lower hinge 102 about the pin 110, so that the hook 106 and the opening 112 of the upper hinge 104 are engaged with each other. There was a risk that the front hood 6 would come off and the front glass 6 would rush into the windshield 4, and the device had a large number of parts.

Therefore, in the front hood hinge disclosed in Japanese Utility Model Laid-Open No. 63-117880 (see FIG. 6), a standing portion 20 is formed on one side surface of the base plate 18 and a surface intersecting with the standing portion 20. The lower hinge 10 having the locking portion 22 formed therein and having the opening 32 opened in the locking portion 22 is fixed to the vehicle body 8, and the fixing portion 26 fixed to the front hood 6 and the extension extending continuously from the fixing portion 26. The upper hinge 14 is composed of a mounting portion 28 having a portion 30, and when the front hood 6 is closed, the extended portion 30 of the upper hinge 14 is inserted into the opening 32 formed in the locking portion 22. Then, when a force is applied from the front toward the glass due to a collision of the automobile, the extended portion 30 protrudes into the opening 32 and is locked by the locking portion 22, preventing further forward projection. However, there has been proposed a front hood hinge that prevents the front hood 6 from protruding in the direction of the glass 4.

[0005]

[Problems to be solved by the device]

 However, in the front hood hinge proposed in the above publication, since the base plate 18 of the lower hinge is surrounded on two sides by the upright portion 20 and the locking portion 22, it is difficult to attach the base plate 18 to the vehicle body. However, when a force from the front of the vehicle body 8 is applied, all the force is applied to the front portion of the lower hinge 10, that is, the direction of the locking portion 22, and the mounting portion of the hinge is broken. .. Further, in order to ensure the strength of the standing portion 20 and the locking portion 22, the weight of the lower hinge is increased.

In view of this, the present invention is capable of reliably preventing the front hood from projecting toward the windshield in the event of an impact, has good workability in assembly, and is a lightweight and economical hood. And a hinge device for the same.

[0007]

[Means for Solving the Problems]

 A hood hinge device for an automobile according to the present invention comprises a base plate having holes for attachment stoppers attached to the vehicle body at both ends thereof, and a leaf mounting portion provided upright on the base plate. The lower part of the center part in the longitudinal direction is cut out at the leaf attachment part, and a locking hole penetrating in the longitudinal direction formed in the connection part between the base plate and the leaf attachment part and the wall surface of the leaf attachment part A lower hinge having a hinge stopper protruding from the upper hinge, a protrusion protruding at the tip end, and an upper hinge having a notch formed by extending the lower edge to form a hook shape are rotatably connected. To have.

[0008]

[Action]

 When the lower hinge and the upper hinge are rotatably connected, the notch portion of the upper hinge corresponds to the locking hole, and prevents the upper hinge from moving against a force from the front. Then, when the upper hinge is rotated with respect to the lower hinge, the protruding portion at the tip of the upper hinge engages with the hinge stopper of the lower hinge and restricts further rotation.

[0009]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. 1 and 2 are explanatory views of the structure of a 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 has a base plate 52 in which holes 51 for inserting a mounting stopper to the vehicle body 8 are bored at both ends in the longitudinal direction, and a leaf attachment which is erected on one side in the longitudinal direction of the base plate 52. The unit 54 is provided. The leaf attachment portion 54 is a substantially triangular plate body having a protrusion 56 protruding from the top. A cut-and-raised flange portion 58 protruding toward the base plate 52 side is provided in the central portion of the lower portion of the leaf mounting portion 54, and a locking hole 59 penetrating in the longitudinal direction of the base plate 52 is formed. .. A bolt is attached to the upper portion of the cut and raised flange portion 58 to form a hinge stopper 60, and a pin hole 62 is bored in the upper portion of the hinge stopper 60.

The upper hinge 70 has a plate-shaped leaf portion 72 to be attached to the leaf attachment portion 54 of the lower hinge 50, and a hood attachment portion 74 continuous to the leaf portion 72 at a right angle. .. The tip portion of the leaf portion 72 has a circular shape, and a part of the circular shape is projected to form a protruding portion 78. A pin hole 76 is formed in the tip portion of the leaf portion 72, and a recess 75 is formed in the upper shoulder portion. A lower edge of the leaf portion 72 is extended in a hook shape to form a notch portion 80. The hood mounting portion 74 is connected to the rear half of the leaf portion 72, and has a stopper hole 82 for inserting a stopper for mounting the hood mounting portion 74 on the hood.

The assembling of the hinge device thus configured 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, the pin hole 76 and the pin hole 62 are aligned with each other, and both are rotatably pinned by a stop pin. The upper hinge 70 is rotated until the protrusion 78 of the leaf portion 72 engages with the hinge stopper 60 of the lower hinge 50 (the state shown by the chain line in FIG. 3). The hood attachment portion 74 of the upper hinge 70 is attached to the hood 6. When assembling the hinge device to the vehicle body 8 and the front hood 6, since the base plate 52 and the hood mounting portion 74 are flat, tightening operation of the stopper is easy and the assembling of the upper hinge 70 is performed. 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 shown by the solid line in FIG. 3 shows the hood 6 when it is closed. When the hood 6 is closed, a notch portion 80 that is connected to the lower edge of the leaf portion 72 is inserted into the locking hole 59 of the cutout flange portion 58 of the lower hinge 50 to close the front hood 6. To hold. When an impact is applied from the front of the vehicle, the notch portion 80 and the cut-and-raised flange portion 58 engage with each other to prevent the front hood 6 from moving further in the front glass 4 direction. When the front hood 6 is expanded, the leaf portion 72 of the hinge device is in the state shown by the broken line in FIG. At this time, the projecting portion 78 at the tip of the leaf portion 72 engages with the hinge stopper 60 to prevent the upper hinge 70 from rotating further, and maintains an appropriate expansion angle of the front hood 6.

[0013]

[Effect of the device]

 In the hinge device of the present invention, when the front hood is closed, the notch portion of the upper hinge raises the lower hinge so as to engage with the engaging hole of the flange portion to maintain the closed state. The front notch is prevented from moving further in the direction of the windshield because the engagement between the notch and the locking hole is more reliable against the impact from the front such as the collision of the automobile. 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 force due to a collision is received by the entire base plate, and it is locally located at one place. The material of the entire hinge can be made light without applying force. When mounting the lower hinge and the upper hinge to the vehicle body and front hood, the part where the fastener is tightened is plate-shaped, and the protrusion of the leaf hinge engages with the hinge stopper of the lower hinge. The expansion angle can be stopped at a constant state, and the tightening work of the upper hinge to the front hood becomes easy, and the tightening work efficiency can be improved.

[Brief description of 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 operation explanatory view of a 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]

 4 Windshield 6 Front hood 8 Vehicle body 50 Lower hinge 52 Base plate 54 Leaf mounting part 56 Projection part 58 Cut and raised flange part 59 Locking hole 70 Upper hinge 72 Leaf part 74 Hood mounting part 78 Projection part 80 Notch

Claims (1)

[Scope of utility model registration request] 1. A hinge device in which a lower hinge attached to a vehicle body side and an upper hinge attached to a front hood side are rotatably connected to each other. Plate and a leaf mounting portion that is erected on the base plate. The lower portion of the central portion in the longitudinal direction is cut and raised in the leaf mounting portion to connect the base plate and the leaf mounting portion. The upper hinge has a locking hole penetrating in the longitudinal direction and a hinge stopper protruding from the wall surface of the leaf mounting portion.The upper hinge has a protrusion protruding at the tip and a lower edge extending in 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.