JP2011111020A - Vehicle hood hinge structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a vehicle hood hinge structure capable of suppressing the deformation load applied on a hinge base when a collision object collides with the vicinity of a hood hinge from a vehicle front diagonally upward side. <P>SOLUTION: In the hinge base 40, a bent-shape portion 48 bent toward outside of the vehicle width direction by a vehicle front view is formed on an intermediate support 46, a first bending portion 50 is formed on a joint part between the bent-shape portion 48 and a connection part 42 side, and a second bending portion 52 located more outside than the connection part 42 in the vehicle width direction is formed on a bending section of the bent-shape portion 48. The bending line 52A of the second bending portion 52 is set to incline toward the outside in the vehicle width direction toward the rear side of the vehicle by a vehicle plane view, while the bending line 50A of the first bending portion 50 is set to extend along the longitudinal direction of the vehicle by a vehicle plan view. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a vehicle hood hinge structure used for opening and closing a hood.

  In a vehicle hood hinge, in order to absorb impact force acting on the hood by buckling deformation, a bent portion may be formed in advance on the hinge base (see, for example, Patent Document 1). In such a structure, the valley fold line and the mountain fold line are set parallel to the vehicle front-rear direction in the vehicle plan view.

JP 2000-6845 A

  However, in this structure, when the colliding body collides near the hood hinge from the obliquely upward front side of the vehicle, the hinge base is deformed while twisting with respect to the load input from the obliquely upward front side of the vehicle. There is room for improvement from the standpoint of reducing

  In view of the above facts, an object of the present invention is to obtain a hood hinge structure for a vehicle that can suppress a deformation load of the hinge base when a colliding body collides with the hood hinge in the vicinity of the upper front side of the vehicle. .

  The hood hinge structure for a vehicle according to the first aspect of the present invention includes a hinge arm whose one end is attached to the hood, a vehicle body side member, and the other end connected to the other end of the hinge arm. A hinge base comprising: a connecting portion that supports the vehicle in the vehicle width direction so as to be relatively rotatable; and an intermediate support portion that connects the connecting portion and the attachment portion to the vehicle body side member in the vehicle vertical direction. The intermediate support portion is formed with a bent portion bent to one side in the vehicle width direction when viewed from the front of the vehicle, and a first bent portion is formed at a connection portion between the bent shape portion and the connecting portion side. In addition, a bent portion of the bent shape portion is formed with a second bent portion located on one side in the vehicle width direction with respect to the connecting portion, and the fold line of the first bent portion is in the vehicle front-rear direction in a vehicle plan view. The second bend is folded while extending along the Line is set to be inclined in the vehicle width direction on one side toward the rear of the vehicle when the vehicle is viewed in a plane.

  According to the vehicle hood hinge structure of the present invention as set forth in claim 1, the hinge arm has one end attached to the hood and the other end connected to the hinge base connecting portion, and around the axis in the vehicle width direction. Is supported so as to be relatively rotatable. The hinge base is attached to the vehicle body side member, and the connecting portion and the attachment portion to the vehicle body side member are connected in the vehicle vertical direction by an intermediate support portion. For this reason, for example, when the collision body collides with the vicinity of the hood hinge, the input load is transmitted to the hinge base connecting portion.

  Further, in the hinge base, a bent portion that is bent toward one side in the vehicle width direction when viewed from the front of the vehicle is formed in the intermediate support portion, and a first bent portion is formed at a connection portion between the bent shape portion and the connecting portion side. At the same time, a second bent portion located on one side in the vehicle width direction from the connecting portion is formed at the bent portion of the bent shape portion. For this reason, at the time of the collision of the collision body, the hinge base is displaced to the vehicle lower side while being bent and deformed at the first bent portion and the second bent portion.

  Here, the fold line of the first bent portion is set to extend along the vehicle front-rear direction in the vehicle plan view, whereas the fold line of the second bent portion is directed toward the rear of the vehicle in the vehicle plan view. It is set to incline to one side in the vehicle width direction. For this reason, when the hinge base is bent and deformed starting from the broken line of the second bent portion, the connecting portion on the vehicle upper side than the bent line of the second bent portion is displaced to the vehicle lower side while being displaced to the vehicle lower side, and the connecting portion Is allowed to be displaced rearward of the vehicle. Therefore, for example, when a collision object collides with the hood hinge near the upper front side of the vehicle and there is a load input from the upper front side of the vehicle in the vicinity of the hood hinge, the bending line of the second bent portion is the starting point. By deforming, the impact can be absorbed while displacing the connecting portion to the vehicle rear side, so that twisting of the hinge base can be suppressed. Thereby, the deformation load of the hinge base is suppressed.

  The hood hinge structure for a vehicle according to a second aspect of the present invention is the configuration according to the first aspect, wherein the second bent portion is formed by bending the bent shape portion outward in the vehicle width direction when the vehicle is viewed from the front. It is located outside the connecting portion in the vehicle width direction, and the fold line of the second bent portion is set to incline outward in the vehicle width direction toward the rear of the vehicle in a plan view of the vehicle.

  According to the vehicle hood hinge structure of the present invention described in claim 2, the bent portion is bent outward in the vehicle width direction when viewed from the front of the vehicle, so that the second bent portion is positioned outward in the vehicle width direction from the connecting portion. In addition to being positioned, the fold line of the second bent portion is set to incline outward in the vehicle width direction toward the rear of the vehicle in a plan view of the vehicle. For this reason, when the hinge base is bent and deformed starting from the bent line of the second bent portion, the portion on the vehicle upper side than the bent line falls to the vehicle width side and is displaced to the vehicle rear side while being displaced toward the vehicle lower side. Therefore, displacement of the connecting portion toward the vehicle rear side and the vehicle width direction inside is allowed.

  Here, when the collision object collides with the hood hinge near the hood from the diagonally upper front side of the vehicle and there is a load input from the diagonally upper front side of the vehicle near the hood hinge, the hood and the hinge arm receiving the load from the collision object Is displaced diagonally downward on the rear side of the vehicle, so that a load in the direction of tilting inwardly in the vehicle width direction acts on the hinge base toward the diagonally lower side of the rear of the vehicle. On the other hand, the portion of the hinge base on the vehicle upper side of the folding line of the second bent portion is bent inward in the vehicle width direction when the hinge base is bent and deformed starting from the broken line of the second bent portion. Since it is displaced toward the rear side of the vehicle while absorbing the impact and absorbs the impact, the deformation load on the hinge base can be suppressed.

  A vehicle hood hinge structure according to a third aspect of the present invention is the vehicle hood hinge structure according to the first or second aspect, wherein the second bent portion and the attachment portion are in the vehicle width direction with respect to the connecting portion. Located on the same side of the.

  According to the hood hinge structure for a vehicle of the present invention described in claim 3, the second bent portion and the mounting portion are located on the same side in the vehicle width direction with respect to the connecting portion, but the second bent portion Since the position in the vehicle width direction is closer to the vehicle width direction position of the first bent portion toward the vehicle front side, the area covering the vehicle upper side of the mounting portion at the vehicle front side portion of the bent shape portion is suppressed. Yes. For this reason, it is easy to ensure the space for attachment work of an attachment part.

  As described above, according to the hood hinge structure for a vehicle according to claim 1 of the present invention, the deformation load of the hinge base when the collision body collides with the hood hinge in the vicinity of the hood hinge obliquely from the upper front side of the vehicle is suppressed. It has an excellent effect of being able to.

  According to the hood hinge structure for a vehicle according to claim 2, even if a load is applied to the hinge base in a direction that is inclined obliquely downward toward the rear of the vehicle and inward in the vehicle width direction, the hinge base It has an excellent effect that the deformation load can be effectively suppressed.

  According to the hood hinge structure for a vehicle according to claim 3, even if the size of the attachment portion to the vehicle body side member in the hinge base is suppressed, it is possible to secure an attachment work space for the attachment portion. Have

1 is a perspective view showing a front part of a vehicle body to which a hood hinge structure for a vehicle according to an embodiment of the present invention is applied as seen from an obliquely forward direction of the vehicle. 1 is a perspective view of a vehicle assembly state showing a hood hinge to which a vehicle hood hinge structure according to an embodiment of the present invention is applied and its peripheral structure. It is sectional drawing (enlarged sectional drawing along the 3-3 line of FIG. 2) which shows the hood hinge structure for vehicles which concerns on one Embodiment of this invention. It is a side view showing the hinge base of the hood hinge structure for vehicles concerning one embodiment of the present invention. It is a top view which shows the hinge base of the hood hinge structure for vehicles which concerns on one Embodiment of this invention. It is a side view which shows the hinge base of the hood hinge structure for vehicles which concerns on one Embodiment of this invention in the state after a deformation | transformation (The state before a deformation | transformation is shown with a dashed-two dotted line). It is a front view which shows the hinge base of the hood hinge structure for vehicles which concerns on one Embodiment of this invention in the state after a deformation | transformation (The state before a deformation | transformation is shown with a dashed-two dotted line). It is sectional drawing of the vehicle front view which shows the modification of the hood hinge structure for vehicles which concerns on one Embodiment of this invention.

(Configuration of the embodiment)
A vehicle hood hinge structure according to an embodiment of the present invention will be described with reference to FIGS. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow IN indicates the vehicle width direction inner side.

  As shown in FIG. 1, front fender panels 12 constituting the side surface of the vehicle body front portion 10 are respectively disposed on both sides of the vehicle body front portion 10. The engine room 14 formed between the pair of left and right front fender panels 12 is covered with a hood (engine hood) 16. A cowl louver 20 is disposed along the vehicle width direction from the lower end of the windshield glass 22 to the rear end of the hood 16.

  FIG. 2 is a perspective view of the hood hinge 30 that supports the hood 16 so that the hood 16 can be opened and closed and its peripheral structure. As shown in this figure, on the inner side in the vehicle width direction of the upper end portion of the front fender panel 12, an apron upper member 24 as a vehicle body side member (which is an element grasped as a “vehicle skeleton member” in a broad sense). Is extended along the vehicle longitudinal direction. The apron upper member 24 includes an apron upper member outer 25 disposed on the outer side in the vehicle width direction, and an apron upper member inner 26 disposed on the inner side in the vehicle width direction and constituting a closed section together with the apron upper member outer 25. .

  On the other hand, the pair of left and right front fender panels 12 includes an outer vertical wall portion 12A that is disposed above the front wheel and forms a design surface, and the inner vertical wall portion 12B is bent and suspended from the upper end of the outer vertical wall portion 12A. Has been. Further, a horizontal portion 12C that is bent substantially horizontally toward the engine room 14 side is provided from the lower end portion of the inner vertical wall portion 12B. A terminal portion 16A in the vehicle width direction of the hood 16 is pressed against the inner vertical wall portion 12B of the pair of left and right front fender panels 12 via a seal material (not shown).

  The hood 16 includes a hood outer panel 17 that forms a hood outer plate, and a hood inner panel 18 that is disposed on the hood lower side of the hood outer panel 17 and forms a hood inner plate. A hood hinge 30 is interposed between a portion near the rear end of the hood inner panel 18 and a portion near the rear end of the top wall portion 26 </ b> A of the apron upper member inner 26.

  The hood hinge 30 includes a hinge base 40 (“base plate”, “support bracket”) attached to the apron upper member 24 (the top wall portion 26A of the apron upper member inner 26) on both sides of the rear end side of the vehicle body front portion 10. And a hinge arm (hood hinge arm) 32 connected to the hinge base 40, which is also referred to as a “supporting member” in a broad sense. One end 34 of the arm 32 is attached to the hood 16.

  The hinge arm 32 is configured as an elongated arm body. When the hood 16 is closed, the hinge arm 32 extends substantially along the vehicle front-rear direction, and the general cross-sectional shape perpendicular to the longitudinal direction is L upside down. It is shaped like a letter. That is, the hinge arm 32 includes a side wall portion 32A disposed on the outer side in the vehicle width direction, and a flange portion 32B (fitted from the upper edge portion of the side wall portion 32A toward the inner side in the vehicle width direction at a substantially right angle. Top wall).

  A flange portion 32 </ b> B at the distal end portion of the hinge arm 32 (one end portion 34 of the hinge arm 32) is a hood attachment seat portion 132 </ b> B to the hood inner panel 18. A pair of front and rear mounting holes 33A and 33B are formed through the hood mounting seat portion 132B. The mounting holes 33A and 33B are for bolt insertion, and the hood mounting seat portion 132B is fixed to the hood inner panel 18 by bolt fastening. In addition, in FIG. 2, a bolt fastening line is shown with a dashed-dotted line (FIG. 3 is also the same).

  FIG. 3 is an enlarged cross-sectional view taken along line 3-3 in FIG. As shown in FIG. 3, the side wall portion 32A at the base end portion of the hinge arm 32 (the other end portion 36 of the hinge arm 32) serves as a connected portion 132A to the hinge base 40, and the connected portion 132A includes A mounting hole 33C penetrating in the vehicle width direction is formed for connection to the hinge base 40. A hinge base 40 is disposed on the outer side in the vehicle width direction of the connected portion 132A of the hinge arm 32.

  The hinge base 40 has a bent plate shape, and has a configuration in which a connecting portion 42 on the upper end side and a mounting portion 44 (attachment base portion) on the lower end side are integrally connected in the vehicle vertical direction by an intermediate support portion 46. The connecting portion 42 constituting the upper end side of the hinge base 40 is substantially flat and is disposed adjacent to and parallel to the side of the connected portion 132A of the hinge arm 32. The plane including the direction and the vehicle front-rear direction is arranged as the plane direction. The connecting portion 42 is formed with a mounting hole 42 </ b> A penetrating in the vehicle width direction for connecting the hinge arm 32. When the hinge pin 58 passes through the mounting hole 42A and the mounting hole 33C of the hinge arm 32, the connecting portion 42 of the hinge base 40 is connected to the connected portion 132A of the hinge arm 32 (the other end 36 of the hinge arm 32). The connected portion 132A (the other end portion 36 of the hinge arm 32) is connected so as to be rotatable about an axis in the vehicle width direction. That is, the hinge pin 58 is pivotally supported on the hinge base 40 so that the hinge arm 32 can be rotated.

  The mounting portion 44 constituting the lower end side of the hinge base 40 has a substantially flat plate shape, and its general surface is a surface including the vehicle width direction and the vehicle longitudinal direction on the top wall portion 26A of the apron upper member inner 26. Has been placed. Mounting holes 44 </ b> A and 44 </ b> B (see FIG. 5) penetrating in the vehicle vertical direction are formed in the mounting portion 44 for mounting on the apron upper member inner 26. The mounting holes 44A and 44B (see FIG. 5) are for bolt insertion, and the mounting portion 44 is fixed to the top wall portion 26A of the apron upper member inner 26 by bolt fastening (bolts 28A and nuts 28B). Yes.

  As shown in FIG. 2, the intermediate support portion 46 that integrally connects the connecting portion 42 and the attachment portion 44 has a bent shape portion 48 that is bent outward in the vehicle width direction (one side in the vehicle width direction) when viewed from the front of the vehicle. The bent plate portion 48 is formed, and the bent portion 48 includes a first inclined portion 46A and a second inclined portion 46B. That is, the intermediate support portion 46 has a first inclined portion 46A continuously provided at the lower end of the connecting portion 42 and is inclined outward in the vehicle width direction toward the vehicle lower side, and is continuous with the lower end of the first inclined portion 46A. The second inclined portion 46B provided inwardly inclines in the vehicle width direction toward the vehicle lower side, and the vertical wall portion 46C provided continuously at the lower end of the second inclined portion 46B is suspended downward in the vehicle. The connecting portion 44 is continuous with the inner end in the vehicle width direction.

  A first bent portion 50 is formed at a connection portion between the first inclined portion 46 </ b> A of the bent shape portion 48 and the connecting portion 42 side. A fold line 50A (ridgeline) of the first bent portion 50 is located on the vehicle lower side (substantially directly below) of the connecting portion 42, and extends along the vehicle front-rear direction in the vehicle plan view as shown in FIG. Is set to

  Further, as shown in FIG. 2, the bent shape portion 48 of the intermediate support portion 46 is bent outward in the vehicle width direction (one side in the vehicle width direction) when viewed from the front of the vehicle. Is formed with a second bent portion 52 that is positioned (offset) on the outer side in the vehicle width direction (one side in the vehicle width direction) than the connecting portion 42. The second bent portion 52 and the mounting portion 44 described above are located on the same side in the vehicle width direction (both outside in the vehicle width direction) with respect to the connecting portion 42.

  Further, as shown in FIG. 5, the fold line 52A (ridge line) of the second bent portion 52 is not parallel to the vehicle front-rear direction in the vehicle plan view but outward in the vehicle width direction (one side in the vehicle width direction). Is set to tilt. In other words, the polygonal line 52A of the second bent portion 52 is the front end (vehicle longitudinal direction) of the polygonal line 52A with respect to the pivot position P (the portion where the hinge pin 58 is disposed in the connecting portion 42 (load input point)) in the vehicle plan view. Between the offset amount L1 in the vehicle width direction on the front side of the vehicle and the offset amount L2 in the vehicle width direction on the rear end (rear side in the vehicle longitudinal direction) of the broken line 52A with respect to the pivot position P such that L1 <L2. Is set.

  Further, the second bent portion 52 shown in FIG. 2 deforms the hinge base 40 toward the vehicle rear lower side toward the vehicle width direction inner side with respect to a predetermined load from the connecting portion 42 side to the vehicle lower side. It is the bending starting point.

  A third bent portion 54 is formed between the second inclined portion 46B and the vertical wall portion 46C at an intermediate portion of the intermediate support portion 46 in the vehicle vertical direction. A fourth bent portion 56 is formed between the vertical wall portion 46 </ b> C and the attachment portion 44. Both the fold line 54A (ridge line) of the third bent portion 54 and the fold line 56A (ridge line) of the fourth bent portion 56 are set so as to extend along the vehicle front-rear direction in the vehicle plan view.

  As shown in FIG. 4, the fold line 50 </ b> A of the first bent portion 50 and the fold line 52 </ b> A of the second bent portion 52 are set slightly shorter than the fold line 54 </ b> A of the third bent portion 54. Accordingly, the first bent portion 50 and the second bent portion 52 are set to have lower rigidity (bending rigidity) with respect to an input load from the connecting portion 42 side toward the vehicle lower side than the third bent portion 54.

(Operation and effect of the embodiment)
Next, the operation and effect of the above embodiment will be described.

  As shown in FIG. 2, the hinge arm 32 has one end 34 attached to the hood 16 and the other end 36 connected to the connecting part 42 of the hinge base 40 and is relatively rotatable about an axis in the vehicle width direction. It is supported by. In addition, the hinge base 40 is attached to the apron upper member 24, and an attachment portion 44 to the apron upper member 24 and a connecting portion 42 are connected in the vehicle vertical direction by an intermediate support portion 46. For this reason, for example, when the collision body 60 collides near the hood hinge 30 (impact load input direction is indicated by the arrow F direction), the input load is transmitted to the connecting portion 42 of the hinge base 40.

  Further, in the hinge base 40, a bent shape portion 48 that is bent outward in the vehicle width direction (one side in the vehicle width direction) is formed in the intermediate support portion 46 when viewed from the front of the vehicle, and between the bent shape portion 48 and the connecting portion 42 side. A first bent portion 50 is formed at the connecting portion, and a second bent portion 52 is formed at the bent portion of the bent shape portion 48 and is located on the outer side in the vehicle width direction (one side in the vehicle width direction) than the connecting portion 42. Yes. For this reason, when the collision body 60 collides, as shown in FIGS. 6 and 7, the hinge base 40 is displaced to the vehicle lower side while being bent and deformed by the first bent portion 50 and the second bent portion 52. In addition, the dashed-two dotted line in a figure has shown the position before a collision.

  In addition, as shown in FIG. 2, when the collision body 60 collides with the hood hinge 30 near the hood 16 from the upper front side of the vehicle, and there is a load input from the upper front side of the vehicle near the hood hinge 30. When the hood 16 and the hinge arm 32 receiving a load from the collision body 60 are displaced obliquely downward on the rear side of the vehicle, the hinge base 40 is inclined obliquely downward on the rear side of the vehicle and inward in the vehicle width direction. The load of the direction which tries to act acts.

  Here, in the vehicle hood hinge structure according to the present embodiment, as shown in FIG. 5, the fold line 50 </ b> A of the first bent portion 50 is set to extend along the vehicle front-rear direction in the vehicle plan view. On the other hand, the polygonal line 52A of the second bent portion 52 is set to incline outward in the vehicle width direction (one side in the vehicle width direction) toward the rear of the vehicle in a plan view of the vehicle. Therefore, as shown in FIGS. 6 and 7, when the hinge base 40 is bent and deformed with the fold line 52A of the second bent portion 52 as a starting point, the portion above the fold line 52A (the portion including the connecting portion 42). ) Collapses inward in the vehicle width direction and displaces to the vehicle lower side (see FIG. 7), displaces to the vehicle rear side (see FIG. 6), and displaces the connecting portion 42 to the vehicle rear side and to the vehicle width direction inner side. Is acceptable.

  Therefore, when there is a load input from the obliquely upper front side of the vehicle near the hood hinge 30 in the hood 16 shown in FIG. 2, as shown in FIGS. 6 and 7, it is more than the broken line 52A in the hinge base 40. The upper part of the vehicle (the part including the connecting part 42) is bent and deformed starting from the folding line 52A of the second bent part 52, and the hinge base 40 falls inward in the vehicle width direction and is displaced downward in the vehicle. (Refer to FIG. 7) Displacement to the vehicle rear side (refer to FIG. 6) and absorb the impact, so that the twist of the hinge base 40 can be suppressed. Thereby, the deformation load of the hinge base 40 is suppressed.

  Here, a supplementary explanation will be given in comparison with the comparison structure. For example, a comparison structure in which the fold lines (ridge lines) of the bent portions formed on the hinge base are set parallel to each other in the direction along the vehicle longitudinal direction is as follows. When the bending line of the bent portion is used as a starting point, the connecting portion of the hinge base with the hinge arm is displaced downward in the vehicle, but is not displaced backward in the vehicle. That is, in this contrast structure, the displacement of the connecting portion toward the vehicle rear side is not allowed only by bending deformation starting from the bent line of the bent portion. Therefore, when a collision object collides with the hood hinge from directly above and a load is input, the hinge base is not twisted but bends and deforms starting from the bending line of the bent portion. When a load is input from the diagonally upper front side of the vehicle due to a collision near the hood hinge from above, displacement of the connecting part to the rear side of the vehicle is allowed only by bending deformation starting from the bending line of the bent part. This causes an unnatural twist in the hinge base.

  In contrast, in the vehicle hood hinge structure according to the present embodiment, when the hinge base 40 is bent and deformed starting from the fold line 52A of the second bent portion 52, as shown in FIG. Since rearward displacement is allowed, twisting of the hinge base 40 is suppressed.

  As described above, according to the hood hinge structure for a vehicle according to the present embodiment, the deformation load of the hinge base 40 when the collision body 60 shown in FIG. Can be suppressed.

  In the vehicle hood hinge structure according to the present embodiment, as shown in FIG. 5, the second bent portion 52 and the attachment portion 44 are both outward in the vehicle width direction (in the vehicle width direction) with respect to the connecting portion 42. However, since the position in the vehicle width direction of the second bent portion 52 is closer to the position in the vehicle width direction of the first bent portion 50 toward the vehicle front side, the vehicle of the bent shape portion 48 is located. The area that covers the vehicle upper side of the mounting portion 44 at the front portion is suppressed. For this reason, even if the size of the attachment portion 44 in the hinge base 40 is suppressed and the attachment portion 44 is designed to be compact, a space for attaching the attachment portion 44 (tool clearance when tightening the bolt) can be secured. Moreover, the freedom degree of arrangement | positioning of the attachment holes 44A and 44B of the attachment part 44 also improves. In addition, the dashed-two dotted line 62 in a figure shows typically the arrangement position of the tool for bolt fastening.

  This will be supplementarily explained in comparison with the comparative structure. For example, a bent shape portion is formed in the intermediate support portion in the hinge base, and the bent portion in the bent shape portion and the attachment portion on the lower end side of the hinge base become the connecting portion. On the other hand, both are located on the outer side in the vehicle width direction, and the fold line of the bent portion is set to the position in the vehicle width direction at the rear end of the fold line 52A of the second bent portion 52 of the present embodiment. In the contrast structure that extends along the vehicle, the overlapping range of the bent portion and the attachment portion is large in a plan view of the vehicle. For this reason, from the viewpoint of avoiding interference between the tool and the hinge base, it is necessary to shift the fastening position of the mounting portion from the overlapping range. Therefore, there are great design restrictions, and it is necessary to design the seat surface of the hinge to be large. . On the other hand, in this embodiment, it is possible to improve such a point.

  Further, when the hood hinge 30 shown in FIG. 3 is installed, for example, in order to adjust the clearance dimension of the parting part between the hood 16 and the front fender panel 12, the vehicle width from the vehicle width direction outer side with respect to the connecting part 42. When the load f in the direction inward is input, as shown in FIG. 5, the extending direction of the broken line 52A of the second bent portion 52 is perpendicular to the input direction of the load f in the vehicle plan view. Therefore, the rigidity (lateral rigidity) with respect to the input direction of the load f is high. The supplementary explanation will be made in comparison with the comparison structure. In the comparison structure in which the bent line of the bent portion formed in the intermediate portion of the intermediate support portion in the vehicle vertical direction extends along the vehicle front-rear direction in the vehicle plan view, the hood hinge Since the component force in the oblique direction is not generated with respect to the input of the load at the time of installation, the rigidity with respect to the input of the load tends to be weak. On the other hand, in the structure of the present embodiment, since a component force in the oblique direction is generated with respect to the input of the load when the hood hinge 30 is installed, the rigidity with respect to the input of the load is higher than that of the comparative structure. Get higher.

(Supplementary explanation of the embodiment)
In the above embodiment, as shown in FIG. 2 and the like, the hinge base 40 is provided with the vertical wall portion 46C between the second inclined portion 46B and the mounting portion 44. As a modification of the embodiment, as shown in FIG. 8, the vertical wall portion 46 </ b> C (see FIG. 2 and the like) may be omitted. FIG. 8 is a longitudinal cross-sectional view (a cross-sectional view corresponding to FIG. 3 of the above-described embodiment) of the vehicle front view on the right side of the front of the vehicle body. Even with the configuration of such a modification, the same operations and effects as those of the above-described embodiment can be obtained.

  Further, as shown in FIG. 5, in the above embodiment, the vehicle width direction position of the front end of the broken line 52A is slightly offset from the vehicle width direction position of the pivot position P (the offset amount is L1). However, in the hood hinge structure for a vehicle, for example, the vehicle width direction position of the front end of the broken line of the second bent portion is not offset with respect to the vehicle width direction position of the pivot position P (the offset amount is set to 0). ) Configuration is also possible.

  Further, in the above-described embodiment, the hinge base 40 is configured such that the bent portion 48 is bent outward in the vehicle width direction when the vehicle is viewed from the front, so that the second bent portion 52 is positioned on the outer side in the vehicle width direction than the connecting portion 42. The bent line 52A of the second bent part 52 is set to incline outward in the vehicle width direction toward the rear of the vehicle in a plan view of the vehicle, and is bent by deformation starting from the bent line 52A of the second bent part 52 at the time of collision. Such a configuration is preferable from the viewpoint of causing the upper portion of the hinge base 40 to fall inward in the vehicle width direction. However, the hinge base has a bent shape portion bent inward in the vehicle width direction when viewed from the front of the vehicle, for example. The two bent portions may be set so as to be located on the inner side in the vehicle width direction than the connecting portion, and the fold line of the second bent portion may be inclined inward in the vehicle width direction toward the rear of the vehicle in a plan view of the vehicle. In such a configuration, the second bent portion and the attachment portion may both be located on the inner side in the vehicle width direction (the same side in the vehicle width direction) with respect to the connecting portion.

  In addition, the concept of “the bent line of the first bent portion extends along the vehicle front-rear direction in a plan view of the vehicle” according to claim 1 is similar to the above-described embodiment. In addition to the case of “extending parallel to the vehicle front-rear direction in view”, the “fold line of the first bent portion is not completely parallel to the vehicle front-rear direction in plan view of the vehicle but is understood to be substantially parallel” The case of “extending in the direction” is also included.

16 Hood 24 Apron upper member (vehicle body side member)
30 Hood hinge 32 Hinge arm 34 One end portion 36 Other end portion 40 Hinge base 42 Connection portion 44 Mounting portion 46 Intermediate support portion 48 Bending shape portion 50 First bending portion 50A Folding line of first bending portion 52 Second bending portion 52A Second Bending line

Claims (3)

A hinge arm with one end attached to the hood;
A connecting portion attached to the vehicle body side member, connected to the other end portion of the hinge arm and supporting the other end portion so as to be relatively rotatable about an axis in the vehicle width direction; and to the connecting portion and the vehicle body side member An intermediate support portion that connects the mounting portion to the vehicle vertical direction, and a hinge base,
The intermediate support portion is formed with a bent shape portion bent toward one side in the vehicle width direction when viewed from the front of the vehicle, and a first bent portion is formed at a connection portion between the bent shape portion and the connecting portion side, and the bent portion is formed. A second bent portion located on one side in the vehicle width direction from the connecting portion is formed at the bent portion of the shape portion,
The fold line of the first bent portion extends along the vehicle front-rear direction in a plan view of the vehicle, whereas the fold line of the second bent portion inclines toward one side in the vehicle width direction toward the rear of the vehicle in the plan view of the vehicle. The hood hinge structure for vehicles set to do.   The bent portion is bent outward in the vehicle width direction when viewed from the front of the vehicle, so that the second bent portion is positioned on the outer side in the vehicle width direction than the connecting portion, and the fold line of the second bent portion is the vehicle plane. The hood hinge structure for a vehicle according to claim 1, wherein the hood hinge structure for a vehicle is set so as to be inclined outward in the vehicle width direction toward the rear of the vehicle.   The hood hinge structure for a vehicle according to claim 1 or 2, wherein the second bent portion and the attachment portion are located on the same side in the vehicle width direction with respect to the connecting portion.

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