JP2005041333A - Vehicle door structure coping with side impact - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make engagement of a door side engaging part and a vehicle body side engaging part difficult to be detached at the time of vehicle side impact. <P>SOLUTION: Each strength of a vicinity 32G of an upper end part and a vicinity 32H of a lower end part of a reinforcement 32 coupling an upper end part 32A with an impact beam 30 disposed in a side door 12 is made smaller than that of an intermediate part 32J of the reinforcement 32. In a lower end part 32B in the reinforcement 32, a base part 46A of a hook 46 is coupled by holding an inner panel 36. An engaging part 46B of the hook 46 is disposed to be engageable by holding a side member outer 18 on a lower part of a lower wall part 16B of a reinforcing member 16 for hooking the hook 46 provided on a locker 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle door collision structure, and more particularly to a vehicle door collision structure in a vehicle such as an automobile.

2. Description of the Related Art Conventionally, in a vehicle door side collision corresponding structure in a vehicle such as an automobile, a protruding door side engaging portion is formed on the side door, and the door side engaging portion is engaged when a vehicle side collision occurs. The vehicle body side engaging portion of the vehicle body side rocker (also referred to as a side sill) is provided with an impact beam extending in the front-rear direction in the side door and a reinforcing member extending in the vertical direction in the side door, A configuration in which the vehicle body side engaging portion and the reinforcing member are brought close to each other is known (for example, see Patent Document 1).
JP 2003-25848 A

  However, in Patent Document 1, when the vehicle side collision occurs, stress concentrates on the joint between the impact beam and the reinforcing member, and the impact beam and the reinforcing member may be broken. Further, when the reinforcing member is broken, the engagement between the vehicle body side engaging portion and the door side engaging portion may be disengaged.

  In consideration of the above-described facts, the present invention has an object to obtain a side collision correspondence structure for a vehicle door in which the engagement between the door side engagement portion and the vehicle body side engagement portion is difficult to be disengaged at the time of vehicle side collision.

The vehicle door side impact corresponding structure of the present invention according to claim 1 includes a door impact beam disposed on the door,
Reinforcement with one end coupled to the door impact beam and the other end reaching the door periphery, and having a lower strength near the one end compared to the strength of the intermediate portion,
A door side engagement portion provided on the inner side in the vehicle width direction of the other end portion of the reinforcement in the door;
A vehicle body side engaging portion provided on the vehicle body side and capable of engaging with the door side engaging portion at the time of a vehicle side collision;
It is provided with.

  Therefore, when a collision load is applied to at least one of the impact beam and the reinforcement at the time of a vehicle side collision, the vicinity of one end of the reinforcement is deformed in advance, so that stress is concentrated on the joint between the impact beam and the reinforcement. Can be suppressed. As a result, it is possible to prevent breakage of the joint portion between the impact beam and the reinforcement. Moreover, it can also suppress that the other end part vicinity of a reinforcement rotates to the vehicle width direction outer side centering | focusing on the connection part of an impact beam and reinforcement. For this reason, it is difficult to release the engagement between the door side engaging portion and the vehicle body side engaging portion at the time of a vehicle side collision.

  According to a second aspect of the present invention, in the vehicle door side impact corresponding structure according to the first aspect, the door-side engagement portion is provided with an engagement means that engages with the vehicle body-side engagement portion. Features.

  Therefore, in addition to the content of the first aspect, the engagement means provided in the door side engagement portion engages with the vehicle body side engagement portion, so that the vehicle body side engagement portion and the door side engagement in the event of a vehicle side collision. It is possible to prevent the engagement with the portion from being released.

  According to a third aspect of the present invention, in the vehicle door side impact corresponding structure according to the first aspect, the door-side engagement portion provided at the other end of the reinforcement is provided at the other end of the reinforcement. It is formed by making intensity | strength smaller than the intensity | strength of the intermediate part of the said reinforcement.

  Therefore, in addition to the contents of claim 1, the other end portion of the reinforcement which is the door side engaging portion is deformed so as to bite the vehicle body side engaging portion, and the vehicle body side engaging portion and the door are deformed at the time of the vehicle side collision. It is possible to prevent the engagement with the side engagement portion from being released.

  According to a first aspect of the present invention, there is provided a side impact corresponding structure for a vehicle door, a door impact beam disposed on the door, and one end connected to the door impact beam and the other end on the door periphery. Reinforcement with reduced strength in the vicinity of one end compared to the strength of the intermediate portion, door side engagement portion provided on the inner side in the vehicle width direction of the other end of the reinforcement at the door, and provided on the vehicle body side It is said that the engagement between the door side engaging portion and the vehicle body side engaging portion is difficult to disengage at the time of the vehicle side collision. Has an excellent effect. Moreover, it has the outstanding effect that the fracture | rupture of the connection part of an impact beam and reinforcement can be prevented.

  According to a second aspect of the present invention, in the vehicle door side collision corresponding structure according to the first aspect, since the engagement means for engaging with the vehicle body side engaging portion is provided in the door side engaging portion, the first aspect is provided. In addition to the described contents, there is an excellent effect that it is possible to prevent the engagement between the vehicle body side engaging portion and the door side engaging portion from being released at the time of a vehicle side collision.

  According to a third aspect of the present invention, in the vehicle door side impact corresponding structure according to the first aspect, the door-side engaging portion provided at the other end of the reinforcement has a strength of the other end of the reinforcement. Since it is formed by making it smaller than the strength of the intermediate part of the reinforcement, in addition to the effect of claim 1, the engagement between the vehicle body side engaging part and the door side engaging part is released at the time of the vehicle side collision. It has the outstanding effect that it can prevent.

  One embodiment of a vehicle door side impact response structure according to the present invention will be described with reference to FIGS.

  In the figure, the arrow FR indicates the vehicle body front direction, the arrow UP indicates the vehicle body upward direction, and the arrow IN indicates the vehicle width inside direction.

  As shown in FIG. 2, a pair of rockers 10 are disposed along the vehicle longitudinal direction at the lower ends of both ends of the vehicle body in the vehicle width direction. A front side door, A lower portion of the side door 12 such as a rear side door is disposed.

  As shown in FIG. 1, the rocker 10 is made of an aluminum extruded material and has a closed cross-sectional structure extending along the longitudinal direction of the vehicle body. Further, the cross-sectional shape of the rocker 10 viewed from the front-rear direction of the vehicle body is a square shape, and a step portion 10B recessed inward in the vehicle width direction is formed on the upper portion of the outer wall portion 10A in the vehicle width direction. An upper flange 10C is formed from the upper end of the vehicle width direction outer wall 10A toward the upper side of the vehicle body.

  As shown in FIG. 2, the rocker 10 is provided with a hook hooking reinforcing member 16 as a vehicle body side engaging portion extending along the vehicle body longitudinal direction. Consists of extruded aluminum.

  As shown in FIG. 1, the cross-sectional shape of the hook hooking reinforcing member 16 viewed from the front-rear direction of the vehicle body is a trapezoidal protrusion whose vertical dimension H decreases from the inner side in the vehicle width direction toward the outer side in the vehicle width direction. Yes. An outer wall portion 16A in the vehicle width direction of the hook hooking reinforcing member 16 is fixed or abutted on a portion 10E on the upper side of the step portion 10B in the outer wall portion 10A in the vehicle width direction of the rocker 10. Further, a flange 16C is formed downward in the vehicle width direction intermediate portion of the lower wall portion 16B of the hook hooking reinforcing member 16, and this flange 16C is formed in the vehicle width direction outer wall portion 10A of the rocker 10. It is fixed to a lower portion 10F of the step portion 10B.

  On the outer side in the vehicle width direction at the upper portion of the outer wall portion 10A in the vehicle width direction of the rocker 10, a cylinder outer 18 is disposed to cover the hook hooking reinforcing member 16 from the outer side in the vehicle width direction. Further, the upper end edge portion 18A of the cycle outer 18 is joined to the upper flange 10C of the rocker 10, and the lower end edge portion 18B of the cycle outer 18 is joined to the lower portion 10G of the outer wall portion 10A in the vehicle width direction of the rocker 10. .

  On the other hand, a rocker molding 20 is disposed outside the rocker 10 in the vehicle width direction outside wall portion 10A on the vehicle width direction outer side, and the rocker molding 20 passes the lower part of the cycle outer 18 and the lower part of the rocker 10 in the vehicle width direction. It covers from the outside. An open trim 22 is disposed at the joint between the upper end edge 18A of the outer cylinder 18 and the upper flange 10C of the rocker 10, and the vehicle of the floor carpet 24 is disposed on the upper wall 10D of the rocker 10. An end 24A in the width direction is provided.

  Reference numerals 26 and 28 in FIG. 1 denote scuff plates disposed on the rocker 10.

  As shown in FIG. 2, an impact beam 30 is disposed in the side door 12 along the longitudinal direction of the vehicle body, and the impact beam 30 is made of an extruded aluminum material. The front end portion 30A of the impact beam 30 is coupled to the front end portion 12A of the side door 12, and the rear end portion 30B of the impact beam 30 is coupled to the rear end portion 12B of the side door 12. Further, an upper end portion 32 </ b> A of the reinforcement 32 is coupled to the vicinity of the rear end portion 30 </ b> B of the impact beam 30. The impact beam 30 is made of an extruded aluminum material, and the shape of the reinforcement 32 viewed from the vehicle width direction is a trapezoid whose front and rear dimension L decreases from the vehicle body upper side to the vehicle body lower side. .

  As shown in FIG. 1, the side door 12 includes an outer panel 34 and an inner panel 36, and the lower end edge 34A of the outer panel 34 and the lower end edge 36A of the inner panel 36 are joined by a hemming process.

  The impact beam 30 and the reinforcement 32 are disposed between the outer panel 34 and the inner panel 36 in the side door 12, and the cross-sectional shape of the impact beam 30 viewed from the front-rear direction of the vehicle body is the outer wall portion 30C in the vehicle width direction. And a vehicle width direction inner side wall portion 30D.

  On the other hand, the reinforcement 32 is disposed along the outer panel 34, and the lower end portion 32 </ b> B is a peripheral portion of the side door 12 where the lower end edge portion 34 </ b> A of the outer panel 34 and the lower end edge portion 36 </ b> A of the inner panel 36 are close to each other. It has reached 12C. Further, the cross-sectional shape of the reinforcement 32 viewed from the front-rear direction of the vehicle body is a triangular shape in which the dimension W in the vehicle width direction decreases from the vehicle body upper side to the vehicle body lower side, and the vehicle width direction outer side wall portion 32C. The upper end edge portion 32D of the vehicle and the upper end edge portion 32F of the vehicle width direction inner side wall portion 32E are the vehicle width direction outer side surface of the vehicle width direction outer side wall portion 30C of the impact beam 30 and the vehicle of the vehicle width direction inner side wall portion 30D. It is fixed to the inner surface in the width direction by a fixing member 38 such as a rivet.

  Further, in the vertical direction intermediate portion 32J (range of the predetermined distance S2) between the vicinity of the upper end of the reinforcement 32 (range of the predetermined distance S1) and the vicinity of the lower end (range of the predetermined distance S3), the vehicle width direction A plurality of ribs 44 for connecting the outer side wall portion 32C and the vehicle width direction inner side wall portion 32E are formed. Accordingly, the strength of the vicinity of the upper end portion 32G of the reinforcement 32 and the strength of the lower end portion vicinity 32H as the door-side engaging portion are smaller than the strength of the intermediate portion 32J of the reinforcement 32. Note that S1 in the vicinity of the upper end portion 32G and S3 in the vicinity of the lower end portion 32H in the reinforcement 32 are set to be long so that they can be bent in the vehicle width direction at the time of a vehicle side collision.

  On the inner side in the vehicle width direction of the lower end 32B of the reinforcement 32, a base 46A of the hook 46 as an engaging means is coupled with an inner panel 36 interposed therebetween, and the hook 46 is made of an extruded aluminum material. Further, the engaging portion 46B of the hook 46 extends from the upper end edge of the base portion 46A obliquely downward inward in the vehicle width direction, and the tip portion is below the lower wall portion 16B of the hook hooking reinforcement member 16. Are arranged so as to be able to engage with each other with the cycle outer 18 interposed therebetween.

  In FIG. 1, reference numeral 50 indicates a door trim disposed on the side door 12, and reference numeral 52 indicates a weather strip disposed on the side door 12.

  Next, the operation of this embodiment will be described.

  In the present embodiment, the strength of the upper end portion 32G and the lower end portion vicinity 32H of the reinforcement 32 in which the upper end portion 32A is coupled to the impact beam 30 in the side door 12 is smaller than the strength of the intermediate portion 32J of the reinforcement 32. It has become. Therefore, as shown in FIG. 3, the front bumper S of the other vehicle collides with the side door 12 of the vehicle body, and the side door 12 moves from the vehicle width direction outside to the vehicle interior side direction (the arrow direction in FIG. 3). When the collision load F is applied toward the impact beam F and at least one of the impact beam 30 and the reinforcement 32, the vicinity 32G of the upper end portion of the reinforcement 32 is deformed in advance. As a result, it is possible to prevent stress from concentrating on the joint between the impact beam 30 and the reinforcement 32. For this reason, the fracture | rupture of the connection part of the impact beam 30 and the reinforcement 32 can be prevented.

  Further, the vicinity of the lower end portion 32H of the reinforcement 32 can also be prevented from rotating outward in the vehicle width direction with the joint portion between the impact beam 30 and the reinforcement 32 as the rotation center. For this reason, it is difficult to release the engagement between the hook 46 and the hook hooking reinforcing member 16 at the time of a vehicle side collision.

  In this embodiment, the strength of the lower end portion vicinity 32H of the reinforcement 32 as the door side engaging portion provided with the hook 46 is smaller than the strength of the intermediate portion 32J of the reinforcement 32.

  As a result, as shown in FIG. 4, the vicinity of the lower end 32H of the reinforcement 32 provided with the hook 46 is deformed so as to bite the hook hooking reinforcing member 16, and the vicinity of the lower end 32H of the reinforcement 32 The engagement with the hook hooking reinforcing member 16 is difficult to be released, and the engagement between the hook 46 and the hook hooking reinforcing member 16 can be prevented from being released.

  Therefore, in this embodiment, the impact energy at the time of a side collision can be effectively absorbed using the tension of the inner panel 36 of the side door 12.

  In the present embodiment, the upper end portion 32A of the reinforcement 32 is coupled to the impact beam 30 by increasing the vicinity of the upper end portion (range of the predetermined distance S1) of the reinforcement 32 and reducing the strength of the upper end portion 32G. It is also possible to prevent stress concentration on the front end portion K (see FIG. 2) of the portion.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, as shown in FIG. 5, a hook as an engaging means may not be provided in the vicinity of the lower end portion 32H of the reinforcement 32 as the door side engaging portion.

  Further, as shown in FIG. 6, a hook 60 as a door side engaging portion may be integrally formed in the vicinity of the lower end portion 32 </ b> H of the reinforcement 32 inward in the vehicle width direction. Further, the cross-sectional shape of the hook hooking reinforcement member 16 as the vehicle body side engaging portion is not limited to the shape of the above embodiment, and may be other shapes such as a curved shape shown in FIG.

  Further, the rocker 10, the hook hooking reinforcing member 16, the impact beam 30, the reinforcement 32, and the hook 46 in the above embodiment are not limited to aluminum. Further, the position at which the hook hooking reinforcing member 16 as the vehicle body side engaging portion is disposed is not limited to the rocker 10.

FIG. 3 is an enlarged sectional view taken along line 1-1 of FIG. It is a side view which shows the side collision corresponding | compatible structure of the vehicle door which concerns on one Embodiment of this invention. It is operation | movement explanatory drawing of the side collision corresponding structure of the vehicle door which concerns on one Embodiment of this invention. It is operation | movement explanatory drawing of the side collision corresponding structure of the vehicle door which concerns on one Embodiment of this invention. It is sectional drawing corresponding to FIG. 1 which concerns on other embodiment of this invention. It is sectional drawing corresponding to FIG. 1 which concerns on other embodiment of this invention.

Explanation of symbols

10 Rocker 12 Side door 16 Reinforcing member for hook hook (vehicle body side engaging portion)
30 Impact beam 32 Reinforcement 32H Near lower end of reinforcement (door side engagement part)
Near the upper end of 32G reinforcement 46 Hook (engaging means)
60 hook (door side engagement part)

Claims (3)

A door impact beam disposed on the door;
Reinforcement with one end coupled to the door impact beam and the other end reaching the door periphery, and having a lower strength near the one end compared to the strength of the intermediate portion,
A door side engagement portion provided on the inner side in the vehicle width direction of the other end portion of the reinforcement in the door;
A vehicle body side engaging portion provided on the vehicle body side and capable of engaging with the door side engaging portion at the time of a vehicle side collision;
A side impact response structure for a vehicle door, comprising:   The side collision corresponding structure of the vehicle door according to claim 1, wherein an engagement means that engages with the vehicle body side engagement portion is provided in the door side engagement portion.   The door side engaging portion provided at the other end of the reinforcement is formed by making the strength of the other end of the reinforcement smaller than the strength of the intermediate portion of the reinforcement. The structure corresponding to the side collision of the vehicle door according to claim 1.

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