JP2009023550A - Hood hinge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hood hinge that can increase hood support rigidity. <P>SOLUTION: A hood hinge 10 includes a hinge base 22 which comprises a first support leg 30 having a bend portion 32, and a second support leg 34 whose lower end is not fixed to an apron upper member 16. When a collision load of a collision body acts on the hinge base 22 from above, the second support leg 34 can fall below the apron upper member 16 toward to the inside of the direction of the vehicle width, and the second support leg 34 can restrain the deformation of the first support leg 30 to the lower side, and further the first support leg 30 can easily deform toward the lower side via the bend portion 32, thus enabling to alleviate the collision load acting on the collision body. Also, at normal times, the hood hinge can increase the hood support rigidity because a hood supporting joining section 26 is supported by both the first support leg 30 and the second support leg 34 against the apron upper member 16. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hood hinge that rotatably connects a hood of a vehicle to a vehicle body side.

  As the hood hinge, the vehicle body side hinge member is fixed to the vehicle body side, the first flat portion to which the hood side hinge member is connected, the bent portion between the fixed portion and the first flat portion, (For example, refer to Patent Document 1).

  In this hood hinge, when a collision load acts on the vehicle body side hinge member from above, the vehicle body side hinge member can be easily deformed downward by the bent portion, and the collision load is absorbed.

However, with this hood hinge, there is a possibility that the support rigidity of the hood is insufficient particularly for a large hood.
JP 11-291948 A

  An object of the present invention is to obtain a hood hinge that can increase the support rigidity of the hood in consideration of the above facts.

  The hood hinge according to claim 1 is provided with a hood side hinge member fixed to the hood of the vehicle and a fixing portion fixed to the vehicle body side, and a connection that is rotatably connected to the hood side hinge member. A hinge member provided on the vehicle body, and provided on the hinge member on the vehicle body, connecting the connecting portion and the fixed portion to support the connecting portion with respect to the vehicle body side, and partially providing rigidity. A first support portion provided with a rigidity lowering portion to be lowered, and provided on the vehicle body side hinge member, connecting the connection portion with at least one of the fixing portion and the vehicle body side, and connecting the connection portion to the vehicle body side. And a second support portion that is not fixed to the vehicle body side.

  According to a second aspect of the present invention, in the hood hinge according to the first aspect of the present invention, the hood hinge includes a facing portion that is provided at a connection portion of the second support portion to the vehicle body side and faces the vehicle body side. It is a feature.

  According to a third aspect of the present invention, in the hood hinge according to the first or second aspect, the second support portion is formed integrally with the connecting portion.

  The hood hinge according to claim 4 is the hood hinge according to any one of claims 1 to 3, wherein the second support part is separated from the connection part, and It is characterized by being combined.

  The hood hinge according to claim 5 is the hood hinge according to any one of claims 1 to 4, wherein the hood hinge is provided on the second support portion, and a collision load acts on the vehicle body side hinge member from above. And a deformation promoting portion that promotes deformation of the second support portion.

  In the hood hinge according to claim 1, the hood side hinge member is fixed to the hood of the vehicle, the fixing portion of the vehicle body side hinge member is fixed to the vehicle body side, and the connecting portion of the vehicle body side hinge member is the hood side. The hinge member is pivotally connected.

  Moreover, the 1st support part provided in the vehicle body side hinge member has connected the connection part and the fixing | fixed part, and is supporting the connection part with respect to the vehicle body side. Further, a second support portion provided on the vehicle body side hinge member communicates the connecting portion with at least one of the fixed portion and the vehicle body side so that the connecting portion can be supported on the vehicle body side.

  Here, the rigidity reduction part provided in the first support part partially reduces the rigidity of the first support part, and the second support part is not fixed to the vehicle body side. For this reason, when a collision load acts on the vehicle body side hinge member from the upper side, the second support portion can be prevented from restricting the deformation of the first support portion to the lower side, and the first support portion has reduced rigidity. The portion can be easily deformed downward, and the connecting portion can be easily moved downward.

  Further, as described above, the first support portion and the second support portion can support the connecting portion with respect to the vehicle body side. For this reason, even if a rigidity reduction part is provided in the 1st support part, the support rigidity of a hood can be made high.

  In the hood hinge of the second aspect, the facing portion provided at the connecting portion of the second support portion to the vehicle body side is opposed to the vehicle body side. For this reason, the second support portion can effectively support the connecting portion with respect to the vehicle body side.

  In the hood hinge according to claim 3, the second support part is formed integrally with the connecting part. For this reason, the number of parts can be reduced.

  In the hood hinge according to claim 4, the second support portion is separated from the connecting portion and coupled to the connecting portion. For this reason, a 2nd support part can be easily set to the appropriate thing corresponding to a hood.

  In the hood hinge of the fifth aspect, when a collision load acts on the vehicle body side hinge member from above, the deformation promoting portion provided in the second support portion promotes the deformation of the second support portion. For this reason, it can suppress effectively that a 2nd support part restrict | limits the deformation | transformation to the lower side of a 1st support part.

[First Embodiment]
FIG. 1 is a perspective view of a hood mounting structure 12 configured by applying the hood hinge 10 according to the first embodiment of the present invention as seen obliquely from the front right of the vehicle. The hood mounting structure 12 is shown in a sectional view as seen from the front of the vehicle. In the drawings, the front side of the vehicle is indicated by an arrow FR, the outer side in the vehicle width direction (right side of the vehicle) is indicated by an arrow OUT, and the upper side is indicated by an arrow UP.

  In the hood mounting structure 12 in the present embodiment, an engine room 14 is provided at the front portion of the vehicle, and the engine room 14 is opened upward. A substantially rectangular cylindrical apron upper member 16 as a vehicle body side member (vehicle body side) is provided on both outer sides in the vehicle width direction at the upper end of the engine room 14. The apron upper member 16 extends in the vehicle front-rear direction. ing.

  A hood 18 is provided on the upper side of the engine room 14, and the hood 18 is closed to close the upper side of the engine room 14. The hood 18 is provided with a plate-shaped hood outer 18A on the vehicle upper side (vehicle outer side) and a plate-shaped hood inner 18B on the vehicle lower side (vehicle inner side). The hood 18 includes the hood outer 18A and the hood inner. 18B is combined at the outer periphery.

  The hood 18 is rotatably attached to the vehicle body side by a pair of hood hinges 10, and the hood hinge 10 is provided on the upper side of the apron upper member 16 at the rear end of the vehicle.

  The hood hinge 10 is provided with a plate-like hinge arm 20 as a hood side hinge member. The rear end of the hood inner 18B of the hood 18 is fastened to the hinge arm 20 at the end in the vehicle width direction. It is fixed.

  The hinge arm 20 is connected to a plate-like hinge base 22 as a vehicle body side hinge member.

  A flat plate-like fixing portion 24 is provided at the lower end of the hinge base 22, and the fixing portion 24 is fastened and fixed to the upper wall of the apron upper member 16, so that the hinge base 22 and thus the hood hinge 10 and the hood 18 are fixed. It is attached to the car body.

  A flat plate-like connecting portion 26 is provided at the upper end portion of the hinge base 22, and a substantially circular shaft-like hinge pin 28 as a connecting member is passed through the connecting portion 26 and the vehicle rear side end portion of the hinge arm 20. Thus, the hinge arm 20 and the hinge base 22 are rotatably connected by the hinge pin 28, so that the hinge arm 20 is rotatably supported by the hinge base 22 via the hinge pin 28. Thus, the hood 18 is rotatable with respect to the hinge base 22 integrally with the hinge arm 20, and the hood 18 is opened and closed by opening and closing the upper side of the engine room 14. Has been made possible.

  The hinge base 22 is provided with a pair of first support legs 30 having a reverse L-shaped plate shape as a first support part. The first support legs 30 connect the connecting part 26 and the fixing part 24 to each other. The connecting portion 26 is supported with respect to the fixing portion 24 and the apron upper member 16 (vehicle body side). The first support leg 30 is formed with a bent portion 32 (bent portion) as a reduced rigidity portion at the upper end and the middle portion in the longitudinal direction. The first support leg 30 is bent at a substantially right angle at the bent portion 32. As a result, the rigidity (strength) against the load on the lower side is lowered.

  The hinge base 22 is provided with a second support leg 34 having an L-shaped cross section as a second support part between the pair of first support legs 30. The second support leg 34 is connected to the connecting part 26. The upper end of the apron upper member 16 is not fixed to the inner end of the apron upper member 16 in the vehicle width direction, and is not fixed to the apron upper member 16. The connecting portion 26 and the apron upper member 16 are connected to each other so that the connecting portion 26 can be supported with respect to the apron upper member 16 (vehicle body side). The portions other than the lower end portion of the second support leg 34 are formed in a flat plate shape and are extended in the vertical direction. A flat plate-like facing portion 36 (bent portion) is provided at the lower end portion of the second support leg 34, and the facing portion 36 is disposed in parallel with the upper surface of the apron upper member 16, so that the apron upper It faces the inner end of the upper surface of the member 16 in the vehicle width direction.

  Next, the operation of the present embodiment will be described.

  In the hood mounting structure 12 having the above configuration, in the hood hinge 10, the hinge arm 20 is fixed to the hood 18, the fixing portion 24 of the hinge base 22 is fixed to the upper wall of the apron upper member 16, and the hinge base 22 connecting portions 26 are rotatably connected to the hinge arm 20 by hinge pins 28.

  Further, the first support leg 30 of the hinge base 22 connects the connecting portion 26 and the fixing portion 24, and connects the connecting portion 26 (including the hinge pin 28, the hinge arm 20 and the hood 18) to the apron upper member 16. I support it. Further, the second support leg 34 of the hinge base 22 connects the connecting portion 26 and the inner end of the apron upper member 16 in the vehicle width direction, and includes the connecting portion 26 (including the hinge pin 28, the hinge arm 20 and the hood 18). ) To the apron upper member 16.

  Here, the pair of bent portions 32 of the first support leg 30 partially lowers the rigidity of the first support leg 30, and the lower end of the second support leg 34 is not fixed to the apron upper member 16. For this reason, as shown in FIG. 3, the collision body 38 (for example, the head of a pedestrian) collides with the hood 18 on the upper side of the hood hinge 10 from above, and the collision load of the collision body 38 acts on the hinge base 22 from above. In this case, the second support legs 34 can move inward in the vehicle width direction and can fall (slid down) inward in the vehicle width direction from the upper surface of the apron upper member 16, so that the second support legs 34 can support the first support. Limiting deformation of the legs 30 to the lower side can be suppressed, and the first support legs 30 can be easily deformed to the lower side by bending deformation of the pair of bent portions 32. As a result, the hinge base 22 can be easily collapsed, the connecting portion 26 can easily move greatly downward, and the collision body 38 can be extended while extending the downward movement stroke. It is possible to reduce the collision load acting on the.

  Further, as described above, at the normal time, the first support leg 30 and the second support leg 34 support the connecting portion 26 with respect to the apron upper member 16. For this reason, even if the bending part 32 is provided in the 1st support leg 30, the support rigidity (installation rigidity of the hood 18) by the hood hinge 10 of the hood 18 can be made high, and the hood hinge 10 has a heavy weight. The hood 18 can be rigid enough to support the hood 18.

  Further, the facing portion 36 at the lower end of the second support leg 34 faces the upper surface of the apron upper member 16. For this reason, the 2nd support leg 34 can support the connection part 26 effectively with respect to the apron upper member 16, and the support rigidity by the hood hinge 10 of the hood 18 can be made high effectively.

  Further, the second support leg 34 is formed integrally with the connecting portion 26. For this reason, the number of parts can be reduced.

[Second Embodiment]
FIG. 4 is a perspective view of a hood mounting structure 52 configured by applying the hood hinge 50 according to the second embodiment of the present invention as viewed obliquely from the front right side of the vehicle.

  The hood mounting structure 52 in the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.

  In the hood mounting structure 52 in the present embodiment, the second support leg 34 is separated from the connecting part 26 in the hinge base 22, and the upper end part of the second support leg 34 is, for example, spot welded, rivet joined, or It is connected to the connecting portion 26 by screwing.

  Here, also in the present embodiment, the same operations and effects as those of the first embodiment can be obtained except for the operations and effects due to the second support legs 34 being formed integrally with the connecting portion 26. .

  Further, the second support leg 34 is separated from the connecting portion 26 and is coupled to the connecting portion 26 at the upper end. For this reason, since the rigidity of the 2nd support leg 34 can be easily set by adjusting the thickness, material, etc. of the 2nd support leg 34, the 2nd support leg 34 and the hood hinge 50 are made into the hood. It can be easily set to an optimum one having rigidity corresponding to the weight and size of 18.

[Third Embodiment]
FIG. 5 is a sectional view of a hood mounting structure 62 configured by applying a hood hinge 60 according to a third embodiment of the present invention as viewed from the front of the vehicle.

  The hood mounting structure 62 in the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.

  In the hood mounting structure 62 in the present embodiment, a bent portion 64 (bent portion) as a deformation promoting portion is formed in the middle portion (particularly the central portion) of the second support leg 34 in the hinge base 22 in the vertical direction (longitudinal direction). In addition, the portion of the second support leg 34 between the bent portion 64 and the facing portion 36 is inclined in the vehicle width direction inward as it goes downward.

  Here, also in this embodiment, the same operations and effects as those in the first embodiment can be obtained.

  Further, a bent portion 64 is formed in the second support leg 34. For this reason, when the collision load of the collision body 38 acts on the hinge base 22 from above, the bent portion 64 promotes the deformation of the second support leg 34, and the second support leg 34 is bent and deformed at the bent portion 64. The second support leg 34 can easily fall from the upper surface of the apron upper member 16 to the inner side in the vehicle width direction by being tilted (inclined inward in the vehicle width direction at the portion below the folding part 64). Thus, it is possible to further suppress the second support leg 34 from restricting the deformation of the first support leg 30 to the lower side. As a result, the first support leg 30 can be more easily deformed downward by the bending deformation of the pair of bent portions 32, the hinge base 22 can be more easily collapsed, and the connecting portion 26 is more easily performed. It can move greatly downward.

  In this embodiment, the bent portion 64 is applied to the second support leg 34 in the first embodiment. However, the bent portion 64 is used in the second support leg 34 in the second embodiment. It is good also as a structure applied to.

  Furthermore, in this Embodiment, it was set as the structure which formed the bending part 64 as a deformation | transformation promotion part in the 2nd support leg 34, However As a structure which formed the hole and recessed part (bead) as a deformation promotion part in the 2nd support leg 34 Also good.

  In the first to third embodiments, the bent portion 32 is formed as the rigidity reduction portion on the first support leg 30. However, the first support leg 30 has a hole as the rigidity reduction portion. Alternatively, a configuration in which concave portions (beads) are formed may be employed.

  Further, in the first to third embodiments, the second support leg 34 is configured to connect the connecting portion 26 and the apron upper member 16, but the second support leg 34 is connected to the connecting portion 26. The fixing unit 24 may be connected.

It is the perspective view seen from the vehicle front diagonal right side which shows the hood attachment structure comprised by applying the hood hinge which concerns on the 1st Embodiment of this invention. It is sectional drawing seen from the vehicle front which shows the hood attachment structure comprised by applying the hood hinge which concerns on the 1st Embodiment of this invention. It is sectional drawing seen from the vehicle front which shows the time of the collision body collision in the hood attachment structure comprised by applying the hood hinge which concerns on the 1st Embodiment of this invention. It is the perspective view seen from the vehicle front diagonal right which shows the hood attachment structure comprised by applying the hood hinge which concerns on the 2nd Embodiment of this invention. It is sectional drawing seen from the vehicle front which shows the hood attachment structure comprised by applying the hood hinge which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

10 Hood hinge 16 Apron upper member (vehicle side)
18 Hood 20 Hinge arm (hood side hinge member)
22 Hinge base (vehicle body side hinge member)
24 fixed portion 26 connecting portion 30 first support leg (first support portion)
32 Bent part (rigidity reduction part)
34 Second support leg (second support part)
36 Opposing part 50 Hood hinge 60 Hood hinge 64 Folding part (deformation promoting part)

Claims (5)

A hood side hinge member fixed to the hood of the vehicle;
A vehicle body side hinge member provided with a fixed portion fixed to the vehicle body side and provided with a connecting portion rotatably connected to the hood side hinge member;
A first rigidity reduction portion is provided on the vehicle body side hinge member and connects the connection portion and the fixing portion to support the connection portion with respect to the vehicle body side, and lowers rigidity partially. A support part;
A second hinge member provided on the vehicle body side hinge member, wherein the connection portion is connected to at least one of the fixing portion and the vehicle body side so that the connection portion can be supported on the vehicle body side and is not fixed to the vehicle body side; A support part;
Hood hinge with   The hood hinge according to claim 1, further comprising a facing portion that is provided at a portion of the second support portion that communicates with the vehicle body and faces the vehicle body.   The hood hinge according to claim 1, wherein the second support portion is formed integrally with the connecting portion.   The hood hinge according to any one of claims 1 to 3, wherein the second support portion is separated from the connecting portion and joined to the connecting portion.   2. A deformation promoting portion that is provided on the second support portion and that promotes deformation of the second support portion when a collision load acts on the vehicle body side hinge member from above. The hood hinge of any one of Claim 4.

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