JP2017100509A - Vehicle door hinge portion structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a vehicle door hinge portion structure capable of suppressing deformation of a side door at the time of lateral collision.SOLUTION: A first hinge bracket 52 is fixed to an outer side vertical wall portion 12A of a front pillar 12, and a second hinge bracket 54 is fixed to a hinge attachment portion 22H of a side door 22. The first hinge bracket 52 and the second hinge bracket 54 are coupled to each other by a hinge pin 56 and are relatively rotatable around an axis in a vehicle vertical direction. In the first hinge bracket 52, a fitting base portion 62 fixed to the outer side vertical wall portion 12A of the front pillar 12 and an extension portion 64 inserted with the hinge pin 56 form an L-shape in a vehicle plane view. The extension portion 64 is extended from a place including an end portion of an opposite side to a door opening portion 20 side to an outside in a vehicle width direction in the fitting base portion 62 in the vehicle plane view.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle door hinge structure.

  Patent Document 1 below discloses a structure in which a door is attached to a pillar via a hinge at a side portion of an automobile. Briefly describing this structure, the hinge is connected to the hinge bracket on the body side fixed to the outer surface portion of the pillar outer, the hinge bracket on the door side fixed to the front portion of the door inner panel, and these hinge brackets. A hinge pin. Here, the hinge bracket on the body side is substantially L-shaped in a plan view of the vehicle. More specifically, the hinge bracket on the body side extends to the vehicle width direction outer side from the mounting base fixed to the outer surface portion of the pillar outer and the end of the mounting base on the door opening side in the vehicle plan view. And an extended portion through which a hinge pin is inserted on the tip end side.

JP 2008-265893 A

  However, in the case of the prior art described in Patent Document 1, when a collision load is applied to deform the door to the vehicle interior side during a side collision, stress concentrates on the hinge. If the amount of deformation of the hinge increases due to the concentration of stress on the hinge, it is disadvantageous in suppressing the deformation of the door toward the vehicle interior.

  In view of the above-described facts, an object of the present invention is to obtain a vehicle door hinge structure that can suppress deformation of a side door at the time of a side collision.

  The vehicle door hinge structure according to the first aspect of the present invention is fixed to a side wall portion on the outer side in the vehicle width direction of the pillar arranged along the vehicle vertical direction on the edge side of the door opening portion on the vehicle side portion. A hinge bracket, a second hinge bracket fixed to a hinge mounting portion of a side door that opens and closes the door opening, and the first hinge bracket and the second hinge bracket can be relatively rotated about an axis in the vehicle vertical direction. The first hinge bracket is fixed to the side wall portion of the pillar in the vehicle width direction, and has an L shape in a vehicle plan view together with the mounting base. An extension part through which the hinge pin is inserted, and the extension part is a vehicle from a part including an end part opposite to the door opening part side in the mounting base part in a plan view of the vehicle. It is extended outward in the width direction.

  According to the above configuration, the first hinge bracket and the second hinge bracket are connected by the hinge pin and can rotate relative to each other around the vehicle vertical axis. Can be opened and closed. As for a 1st hinge bracket, the attachment base fixed to the side wall part of the vehicle width direction outer side of a pillar, and the extension part in which the hinge pin is penetrated have comprised the L shape by the vehicle planar view. Here, the extending portion extends outward in the vehicle width direction from a portion including an end portion on the side opposite to the door opening side in the mounting base portion in the vehicle plan view. For this reason, since a part of the side door is disposed at the facing portion on the outer side in the vehicle width direction of the mounting base, a large amount of wrapping between the side wall portion on the outer side in the vehicle width direction of the pillar and the side door is ensured in a side view of the vehicle. Can do.

  Therefore, at the time of a side collision, if the side door is displaced inward in the vehicle width direction due to the collision load at that time, the side door is supported by the side wall portion on the outer side in the vehicle width direction of the pillar, so the collision load is transmitted from the side door to the pillar. The Further, this suppresses a load that tends to displace the portion of the extending portion of the first hinge bracket toward the vehicle interior facing the door opening, and suppresses deformation of the first hinge bracket. . As a result, the displacement of the side door in the vehicle width direction is effectively suppressed.

  As described above, according to the vehicle door hinge part structure of the present invention, there is an excellent effect that deformation of the side door can be suppressed at the time of a side collision.

It is a side view which shows a part (front part) of the vehicle side part to which the door hinge part structure for vehicles which concerns on the 1st Embodiment of this invention was applied. It is an expanded plane sectional view which expands and shows the state cut | disconnected along 2-2 line | wire of FIG. It is a plane sectional view showing the important section of the door hinge part structure for vehicles concerning a 2nd embodiment of the present invention.

[First Embodiment]
A vehicle door hinge structure according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. In these drawings, an arrow FR appropriately shown indicates the vehicle front side, an arrow UP indicates the vehicle upper side, and an arrow OUT indicates the vehicle width direction outer side.

  In FIG. 1, the front side of the vehicle side is shown in a side view. As shown in this figure, the vehicle side portion 10 includes a front pillar (also referred to as “A pillar”) 12, a roof side rail 14, a center pillar 16 (also referred to as “B pillar”), and a rocker (also referred to as “side sill”). A door opening 20 surrounded by 18 is formed. The door opening 20 is opened and closed by a side door (front side door) 22.

  The front pillar 12 is arranged along the vehicle vertical direction on the front edge side of the door opening 20, and is erected from the front end portion of the rocker 18 to the vehicle upper side and connected to the roof side rail 14. FIG. 2 is an enlarged plan view showing a state cut along line 2-2 in FIG. As shown in FIG. 2, the front pillar 12 includes a front pillar inner panel 24 disposed on the vehicle interior side, and a front pillar reinforcement 26 disposed on the vehicle exterior side of the front pillar inner panel 24. ing. In the following description, the front pillar inner panel 24 is abbreviated as “pillar inner panel 24”, and the front pillar reinforcement 26 is abbreviated as “pillar RF 26”.

  The pillar inner panel 24 is configured as a member extending linearly along the vehicle front-rear direction in a plan view. Further, the pillar RF 26 is formed in a substantially hat shape with an opening directed inward in the vehicle width direction in a plan view. The pillar RF 26 forms a skeleton portion 32 having a closed cross section extending substantially along the vertical direction of the vehicle with the pillar inner panel 24 by joining the front and rear flange portions 26A and 26B to the pillar inner panel 24. .

  A front pillar outer portion 28A, which is a part of the side outer panel 28, is disposed outside the passenger compartment of the pillar RF 26, and constitutes a part of the front pillar 12. The front pillar outer portion 28A is formed in a substantially hat shape with the opening directed inward in the vehicle width direction in a plan view, and the front and rear flange portions 28A1 and 28A2 are formed on the front and rear flange portions 26A and 26B of the pillar RF 26 and the pillar inner panel 24. It is joined. The front pillar 12 includes an outer vertical wall portion 12A as a side wall portion extending along the vehicle vertical direction and the vehicle front-rear direction at a portion on the outer side in the vehicle width direction formed by a part of the front pillar outer portion 28A. ing. The outer vertical wall portion 12A of the front pillar 12 (front pillar outer portion 28A) is superposed on most of the outer side wall portion 26C that constitutes a portion of the pillar RF 26 on the outer side in the vehicle width direction.

  Next, the side door 22 will be described. In addition, the direction about the side door 22 described in the following description is a direction in a state in which the door opening 20 (see FIG. 1) is closed by the side door 22. The side door 22 is configured by a door inner panel 34 that is disposed on the vehicle interior side and constitutes a door inner plate, and a door outer panel 36 that is disposed outside the vehicle interior of the door inner panel 34 and constitutes a door outer plate. The door main body 38 is provided. In addition, the lower end part of the door frame 40 (refer FIG. 1) is attached to the upper end part side of the door main-body part 38. FIG. A fender panel 68 is disposed on the vehicle outer side of the door outer panel 36.

  The door inner panel 34 includes a room-side vertical wall portion 34A that extends along the vehicle front-rear direction and the vehicle vertical direction and constitutes the door inner surface. The front portion of the door inner panel 34 in the vehicle front-rear direction is bent outward from the front end portion of the indoor vertical wall portion 34A in the vehicle width direction, and is near the front end portion of the indoor vertical wall portion 34A and the front end portion of the door outer panel 36. The front side vertical wall part 34B arrange | positioned between these is provided.

  The front vertical wall portion 34B is formed in a staircase shape in a plan cross-sectional view. The front vertical wall 34B is provided with a step 34S that is recessed by one step outward in the vehicle width direction from the indoor vertical wall 34A when viewed from the vehicle interior side, and the indoor vertical wall 34A and the step 34S. An inner front wall portion 34X that forms a step is set. A portion of the inner front wall portion 34X excluding the end portion on the outer side in the vehicle width direction opposes the front pillar 12 in the vehicle front-rear direction, and a step portion 34S is a portion excluding the rear end portion in the vehicle front-rear direction. Is opposed to the vehicle width direction. In addition, an outer front wall portion 34F that is bent and extended outward from the front end portion of the step portion 34S in the vehicle width direction is formed in the front vertical wall portion 34B. A front flange portion 34C that is bent and extended toward the front side of the vehicle is formed from an end portion on the outer side in the vehicle width direction of the outer front wall portion 34F. A terminal portion of the door outer panel 36 is fixed to the front end portion of the front flange portion 34C by hemming.

  In addition, an impact beam 42 formed of a pipe-like member is disposed along the vehicle front-rear direction at an upper portion inside the door main body portion 38. An extension 44 is attached to the front end of the impact beam 42 in the longitudinal direction as an attachment member. In the extension 44, the front portion 44A is fixed to the front flange portion 34C of the door inner panel 34, and the front end portion of the impact beam 42 is fixed to the rear portion 44B.

  Further, a mirror bracket 46 is joined to the front vertical wall 34 </ b> B of the door inner panel 34 at the upper part inside the door main body 38. The mirror bracket 46 is a bent plate-like member disposed along the inner front wall 34X, the step 34S and the outer front wall 34F of the door inner panel 34, and is used for fixing and holding a door mirror (not shown). A reinforcing patch 48 is joined to a surface on the vehicle rear side of a portion of the mirror bracket 46 overlapped with the outer front wall portion 34F of the door inner panel 34.

  In the upper part of the door main body portion 38, a portion where the outer front wall portion 34F of the door inner panel 34, the mirror bracket 46, and the patch 48 are overlapped is a hinge attachment portion 22H. Although not shown in detail, at the lower part of the door main body portion 38, a portion where the outer front wall portion 34F of the door inner panel 34 and the reinforcing patch are overlapped and joined is a hinge mounting portion 22H (see FIG. 1). ). The hinge attachment portion 22H (see FIG. 1) at the lower portion of the door main body portion 38 is different from the hinge attachment portion 22H at the upper portion of the door main body portion 38 in that it is not reinforced by the mirror bracket 46. Since they are substantially the same, the same reference numerals are given for convenience. A hinge attachment portion 22H constituting the front end side of the side door 22 is rotatably attached to the front pillar 12 via a door hinge portion 50 (details will be described later).

  The door hinge portion 50 includes a first hinge bracket (also referred to as “hinge mail”) 52, a second hinge bracket (also referred to as “hinge mail”) 54, and a hinge pin 56. The first hinge bracket 52 is fixed to the outer vertical wall portion 12 </ b> A of the front pillar 12, and the second hinge bracket 54 is fixed to the hinge mounting portion 22 </ b> H of the side door 22. And the hinge pin 56 has connected the 1st hinge bracket 52 and the 2nd hinge bracket 54 so that relative rotation around the axis | shaft of a vehicle up-down direction is possible.

  The shape of the second hinge bracket 54 viewed from the vehicle width direction is a hat shape with the opening directed to the hinge mounting portion 22H side of the side door 22. That is, the second hinge bracket 54 includes a protruding portion 54A protruding from the hinge mounting portion 22H side and a pair of upper and lower mounting flanges extending in a direction away from the end of the protruding portion 54A on the hinge mounting portion 22H side. Part 54B. Further, the projecting portion 54A is hinged from the vertical wall portion 54A1 disposed substantially in parallel with the hinge mounting portion 22H, and from the upper and lower ends (the front and back terminals in the figure) of the vertical wall portion 54A1. And a pair of upper and lower horizontal wall portions 54A2 extending substantially horizontally toward the mounting portion 22H side. Mounting flange portions 54B (on the right side in the figure) at both upper and lower ends of the second hinge bracket 54 are fixed to the hinge mounting portion 22H with bolts 58A and nuts 58B.

  On the other hand, the first hinge bracket 52 is formed in a substantially U shape that is open to the outside in the vehicle width direction in the vehicle plan view, and is L in the vehicle plan view excluding the rear end portion side in the vehicle front-rear direction. A portion formed in a letter shape is a hinge base portion 60. The hinge base portion 60 includes an attachment base portion 62 disposed along the outer vertical wall portion 12A of the front pillar 12. A part of the mounting base 62 is set at a position overlapping a part (front part) of the impact beam 42 described above in a side view of the vehicle. The mounting base 62 includes a mounting base main body 62 </ b> A that is disposed in surface contact with the outer vertical wall 12 </ b> A of the front pillar 12. The mounting base body 62A is fixed to the outer vertical wall portion 12A of the front pillar 12 and the outer side wall portion 26C of the pillar RF 26 with bolts 58C and nuts 58D. Reinforcing flange portions 62B projecting in the horizontal direction (vehicle width direction outer side) are formed from the upper and lower ends (terminals on the front side and the back side in the drawing) of the mounting base body 62A.

  In addition, the hinge base portion 60 includes an extending portion 64 that forms an L shape in a vehicle plan view together with the mounting base portion 62. The extension portion 64 extends outward in the vehicle width direction from a portion including an end portion of the attachment base portion 62 opposite to the door opening 20 side (that is, the front end portion of the attachment base portion 62) in the vehicle plan view. Yes. In addition, the extension part 64 in this embodiment is slightly inclined toward the vehicle front side toward the vehicle width direction outer side. The extending portion 64 is formed continuously from the front end of the mounting base main body 62A via the curved portion 63A to the outer side in the vehicle width direction and the pair of flange portions 62B, and is formed on the outer side in the vehicle width direction. And a pair of side portions 64B extended to each other. The pair of side portions 64B are formed continuously with the upper and lower ends (terminals on the front side and the back side in the drawing) of the intermediate wall portion 64A, and further on the vehicle side of the intermediate wall portion 64A than the end portion on the outer side in the vehicle width direction. A pair of support piece portions 64B1 extending outward in the width direction are provided.

  The protrusion 54A of the second hinge bracket 54 described above is disposed between the pair of support pieces 64B1. A hinge pin 56 is inserted (penetrated) in the vehicle vertical direction through the support piece 64B1 of the first hinge bracket 52 and the protrusion 54A of the second hinge bracket 54. Thus, the second hinge bracket 54 is coupled to the hinge base portion 60 of the first hinge bracket 52 so as to be rotatable about the axis of the hinge pin 56. Further, the hinge attachment portion 22H of the side door 22 is rotatably attached to the first hinge bracket 52 via the second hinge bracket 54.

  The hinge pin 56 is located on the vehicle front side of the fastening portion (see the bolt 58C and the nut 58D) of the second hinge bracket 54 to the front pillar 12. Further, the fastening portion of the first hinge bracket 52 to the side door 22 (see the hinge mounting portion 22H, the bolt 58A, and the nut 58B) is also the fastening portion of the second hinge bracket 54 to the front pillar 12 (see the bolt 58C and the nut 58D). ) Is located in front of the vehicle.

  Further, the first hinge bracket 52 includes an engagement piece 66 that extends (projects) outward in the vehicle width direction from the end of the mounting base 62 on the door opening 20 side in the vehicle plan view. More specifically, the engagement piece 66 extends outward in the vehicle width direction from the rear end of the attachment base main body 62A via the curved portion 63B. The engaging piece 66 is inserted into a through hole 70 formed in the step 34S of the door inner panel 34 and a through hole 72 formed in the mirror bracket 46, and the distal end of the engaging piece 66 is the through hole 70. , 72. The through holes 70 and 72 are set at positions facing each other in the vehicle width direction, and the front portion of the side door 22 is displaced to the vehicle rear side while the side door 22 is displaced inward in the vehicle width direction at the time of a side collision. In addition, it is set to engage with the engagement piece 66 (setting of the latch structure).

(Action / Effect)
Next, the operation and effect of the above embodiment will be described.

  In the present embodiment, the first hinge bracket 52 and the second hinge bracket 54 are connected by a hinge pin 56 and can rotate relative to each other around an axis in the vehicle vertical direction. The opening 20 can be opened and closed. In the first hinge bracket 52, an attachment base 62 fixed to the outer vertical wall portion 12A of the front pillar 12 and an extending portion 64 through which the hinge pin 56 is inserted form an L shape in a vehicle plan view. Yes. Here, the extension part 64 is extended to the vehicle width direction outer side from the site | part containing the edge part on the opposite side to the door opening part 20 side in the attachment base 62 in the vehicle planar view. For this reason, since a part of the side door 22 is disposed at the opposite side of the mounting base 62 in the vehicle width direction, the lap amount between the outer vertical wall portion 12A of the front pillar 12 and the side door 22 is increased in a side view of the vehicle. Can be secured.

  Therefore, at the time of a side collision, when the side door 22 is displaced inward in the vehicle width direction due to the collision load at that time, the side door 22 is supported by the outer vertical wall portion 12A of the front pillar 12, so that the collision load is transferred from the side door 22 to the front. It is transmitted to the pillar 12. Thereby, the load which is going to displace the site | part by the side of the front-end | tip part of the extension part 64 of the 1st hinge bracket 52 toward the vehicle interior side which faces the door opening part 20 is suppressed. Further, the hinge base portion 60 of the first hinge bracket 52 makes the angle of the surface on the side door 22 side in the curved portion 63A smaller than the load in the direction of increasing the angle of the surface on the side door 22 side in the curved portion 63A. It is harder to deform with respect to the load in the direction. Accordingly, the deformation of the first hinge bracket 52 is effectively suppressed. As a result, the displacement of the side door 22 in the vehicle width direction is effectively suppressed.

  Further, in the present embodiment, when the side door 22 is displaced inward in the vehicle width direction and the front portion of the side door 22 is displaced toward the vehicle rear side during a side collision, the through holes 70 and 72 of the side door 22 are provided with the first hinge. Engages with the engagement piece 66 of the bracket 52. For this reason, the deformation of the side door 22 is further suppressed.

  Further, in the present embodiment, a part of the first hinge bracket 52 and a part (front part) of the impact beam 42 are set at a position where they overlap each other in a vehicle side view. For this reason, it is possible to transmit a collision load to the front pillar 12 from the impact beam 42 side through the first hinge bracket 52 and the like at the time of a side collision.

  As described above, according to the vehicle door hinge structure of the present embodiment, it is possible to suppress the deformation of the side door 22 at the time of a side collision.

[Second Embodiment]
Next, a vehicle door hinge part structure according to a second embodiment of the present invention will be described with reference to FIG. The principal part of the door hinge part structure for vehicles which concerns on this embodiment is shown by the plane sectional view (FIG. 3 is a figure corresponding to FIG. 2 in 1st Embodiment). This embodiment is different from the first embodiment in that the engagement piece 66 and the through holes 70 and 72 in the first embodiment shown in FIG. 2 are not formed. Further, in the present embodiment, a convex portion (projecting portion) 80 is formed on the step portion 34S of the door inner panel 34 shown in FIG. 3, and a convex portion (projecting portion) 82 is formed on the mirror bracket 46. This is different from the first embodiment. Other configurations are substantially the same as those of the first embodiment. Therefore, components that are substantially the same as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The convex portion 80 formed on the step portion 34S of the door inner panel 34 protrudes inward in the vehicle width direction from the general portion 34S1 of the step portion 34S, and is set on the vehicle front side with respect to the head portion 58C1 of the bolt 58C. . In the present embodiment, the convex portion 80 is set at an end portion on the vehicle front side of the step portion 34S, and is set at a position overlapping with a part of the head portion 58C1 of the bolt 58C in a front view of the vehicle. The convex portion 80 is set so as to engage with the head portion 58C1 of the bolt 58C when the front portion of the side door 22 is displaced to the vehicle rear side while the side door 22 is displaced inward in the vehicle width direction at the time of a side collision. (Latch structure setting) Further, the convex portion 82 formed on the mirror bracket 46 is set so as to overlap the convex portion 80 of the door inner panel 34. The convex portion 82 is used for reinforcement that suppresses deformation of the convex portion 80 when the convex portion 80 of the door inner panel 34 is engaged with the head portion 58C1 of the bolt 58C at the time of a side collision.

  According to the present embodiment, the collision load at the time of the side collision is transmitted from the side door 22 to the front pillar 12 as in the first embodiment described above, so that the deformation of the side door 22 at the time of the side collision is suppressed. Can do. Further, in the present embodiment, when the side door 22 is displaced inward in the vehicle width direction and the front portion of the side door 22 is displaced toward the vehicle rear side at the time of a side collision, the convex portion 80 of the door inner panel 34 has the bolt 58C. Engage with the head 58C1. This also suppresses deformation of the side door 22.

  The concept of “extending outward in the vehicle width direction” described in claim 1 includes the case of extending outward in the vehicle width direction orthogonal to the vehicle front-rear direction in plan view of the vehicle. Thus, the case where it extends so that it may incline slightly in the vehicle front-back direction toward the vehicle width direction outer side is also included.

  The configurations of the first and second embodiments can be implemented in combination.

  Although an example of the present invention has been described above, the present invention is not limited to the above, and it is needless to say that various modifications can be made without departing from the spirit of the present invention. .

10 Vehicle side 12 Front pillar (pillar)
12A outside vertical wall (side wall in the vehicle width direction)
DESCRIPTION OF SYMBOLS 20 Door opening part 22 Side door 22H Hinge attachment part 50 Door hinge part 52 1st hinge bracket 54 2nd hinge bracket 56 Hinge pin 62 Attachment base 64 Extension part

Claims (1)

A first hinge bracket fixed to a side wall portion on the outer side in the vehicle width direction of the pillar disposed along the vehicle vertical direction on the edge side of the door opening portion on the vehicle side portion;
A second hinge bracket fixed to the hinge mounting portion of the side door that opens and closes the door opening;
A hinge pin that connects the first hinge bracket and the second hinge bracket so as to be relatively rotatable about an axis in the vehicle vertical direction;
Have
The first hinge bracket includes an attachment base fixed to the side wall portion of the pillar on the outer side in the vehicle width direction, an extension portion that is L-shaped with the attachment base in a plan view of the vehicle and through which the hinge pin is inserted. , And the extension portion is extended outward in the vehicle width direction from a portion including an end portion of the attachment base portion opposite to the door opening side in the vehicle plan view. Part structure.

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