JP2004243785A - Vehicle body structure - Google Patents

Vehicle body structure Download PDF

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Publication number
JP2004243785A
JP2004243785A JP2003032386A JP2003032386A JP2004243785A JP 2004243785 A JP2004243785 A JP 2004243785A JP 2003032386 A JP2003032386 A JP 2003032386A JP 2003032386 A JP2003032386 A JP 2003032386A JP 2004243785 A JP2004243785 A JP 2004243785A
Authority
JP
Japan
Prior art keywords
vehicle
suspension
auxiliary
kick
members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003032386A
Other languages
Japanese (ja)
Inventor
Tetsuro Fukuhara
Hideyuki Yoshioka
秀幸 吉岡
哲朗 福原
Original Assignee
Toyota Motor Corp
トヨタ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp, トヨタ自動車株式会社 filed Critical Toyota Motor Corp
Priority to JP2003032386A priority Critical patent/JP2004243785A/en
Publication of JP2004243785A publication Critical patent/JP2004243785A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To suppress projection generated in the front upper side part of a vehicle body with respect to a kick part in the front side member at a frontal vehicle collision. <P>SOLUTION: Auxiliary members 42 are extended linearly from the front upper side to the rearward lower side to connect the front side members 12 and the front suspension member 22. The right and left auxiliary members 42 are arranged almost in parallel with each other along the right and left front side members 12. The rear ends 42B of the auxiliary members 42 are connected to connection parts 22C formed at both front ends of the suspension member 22 in a vehicle width direction. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle body structure, and more particularly to a vehicle body structure that suppresses deformation of a front side member at the time of a vehicle front collision in a vehicle such as an automobile.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a vehicle body structure of an automobile, front left and right front ends of a front suspension member are formed at a rear portion of a front side member with respect to a kick portion (inclined portion) extending from a front upper side to a rear lower side of the vehicle body. By connecting the left and right rear ends of the front suspension member to the kick portion of the front side member via the reinforcing bracket to the rear lower part of the vehicle body via a reinforcement bracket, respectively, There is known a structure for reducing a bending moment acting on a kick portion in an upward direction of a vehicle body (for example, see Non-Patent Document 1).
[0003]
[Non-patent document 1]
Toyota Motor Corporation, "Invention Association Public Technical Bulletin", Official Skill Number 99-782, February 1, 1999
[Problems to be solved by the invention]
However, according to this conventional technique, a load acting on the front side member at the time of a vehicle front collision causes the kick portion of the front side member to be bent upward, that is, to rise up at a portion on the front upper side of the vehicle body.
[0005]
The present invention has been made in consideration of the above-described circumstances, and has as its object to obtain a vehicle body structure capable of suppressing a rise occurring in a portion of a front side member at an upper front side of a vehicle body with respect to a kick portion in a vehicle front collision.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, a front portion of the front suspension member is connected to a portion on the front upper side of the vehicle body with respect to a kick portion of the front side member, and a rear portion of the front suspension member is connected to a kick portion of the front side member. On the other hand, it is a vehicle body structure connected to the lower part of the vehicle body rear side,
The vehicle further includes an auxiliary member that extends linearly from the upper front side of the vehicle body toward the rear side of the vehicle body, and connects the front side member and a front portion of the front suspension member.
[0007]
Therefore, at the time of a vehicle front collision, part of the load is transmitted from the front side member to the front suspension member via the auxiliary member. At this time, since the auxiliary member is linearly extended from the upper front side of the vehicle body to the lower rear side of the vehicle body, the component force of the load from the front side of the vehicle body to the rear side of the vehicle body via the auxiliary member is increased in front of the front suspension member. Acts on the lower part of the vehicle body. As a result, a pulling load acts on the kick portion of the front side member to which the front portion of the front suspension member is connected, from the upper side of the vehicle body to the lower side of the vehicle body, on a portion on the upper front side of the vehicle body. For this reason, at the time of a front collision of the vehicle, it is possible to prevent the kick portion of the front side member from being raised in a portion on the upper front side of the vehicle body.
[0008]
According to a second aspect of the present invention, in the vehicle body structure according to the first aspect, the auxiliary member is disposed along left and right front cross members, and a front end portion is formed between the front side member and the front cross member. Characterized by being connected to a connecting portion.
[0009]
Therefore, in addition to the contents described in claim 1, the auxiliary member is provided along the left and right front cross members, and the front end is connected to the connecting portion between the front side member and the front cross member. Therefore, the load sharing of the auxiliary member is increased, and it is possible to effectively suppress the rise of the kick portion of the front side member at the upper front portion of the vehicle body at the time of a vehicle front collision.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a vehicle body structure according to the present invention will be described with reference to FIGS.
[0011]
In the drawings, an arrow FR indicates a forward direction of the vehicle body, an arrow UP indicates an upward direction of the vehicle body, and an arrow IN indicates an inward direction of the vehicle width.
[0012]
As shown in FIG. 2, a pair of left and right front side members 12 are disposed in the front part of the vehicle body 10 of the present embodiment near the lower ends of the vehicle width direction along the vehicle front-rear direction. Defines a closed section extending in the vehicle longitudinal direction. A front cross member 14 is disposed in the vicinity of the front end 12A of the front side member 12 along the vehicle width direction, and a front suspension member 22 is disposed on the rear side of the front cross member 14 in the vehicle body. ing.
[0013]
Both ends in the vehicle width direction of the front suspension member 22 are bifurcated into a front mounting leg portion 22A extending upward and forward and a rear mounting leg portion 22B extending rearward. The member 22 is attached to the front side member 12 via a mount 24 at a front attachment leg 22A and a rear attachment leg 22B.
[0014]
As shown in FIG. 1, a front mounting leg 22A of the front suspension member 22 has a bracket 46 disposed at a lower portion of a front upper portion 12D with respect to a kick portion (inclined portion) 12C of the front side member 12. It is connected to. The rear mounting leg portion 22B of the front suspension member 22 is connected to a lower portion 12E of the rear side of the vehicle body with respect to the kick portion 12C of the front side member 12.
[0015]
As shown in FIG. 2, both end portions 14A in the vehicle width direction of the front cross member 14 are curved obliquely rearward of the vehicle body. Further, both ends 14B in the vehicle width direction of the front cross member 14 are welded to brackets 30 which are disposed on the front side member 12 and constitute a part of the front side member 12.
[0016]
As shown in FIG. 3, the front cross member 14 is made of a pipe material. Further, the upper end edge portion 30B of the bracket 30 is fixed to a lower portion of the vehicle width direction inner side wall portion 12B of the front side member 12 by a fixing means 34 such as a bolt.
[0017]
The auxiliary member 42 is a tubular member having a rectangular cross section, and a front end 42A of the auxiliary member 42 is fixed to the mounting bracket 40. The mounting bracket 40 is fixed to the lower portion 30A of the bracket 30 with the portions near both ends 14B in the vehicle width direction of the front cross member 14 interposed therebetween.
[0018]
As shown in FIG. 2, the left and right auxiliary members 42 are disposed substantially parallel to each other along the left and right front side members 12, respectively. Further, a rear end portion 42B of the auxiliary member 42 is connected to a connecting portion 22C formed at a front portion on both ends in the vehicle width direction of the front suspension member 22.
[0019]
That is, as shown in FIG. 1, the auxiliary member 42 extends linearly from the upper front side of the vehicle body to the lower rear side of the vehicle body, and connects the front side member 12 and the front suspension member 22.
[0020]
Next, the operation of the present embodiment will be described.
[0021]
In the present embodiment, at the time of a vehicle front collision, a part of the load is transmitted from the front side member 12 to the auxiliary member 42 via the bracket 30, portions near both ends 14 </ b> B in the vehicle width direction of the front cross member 14, and the mounting bracket 40. Then, the power is transmitted through the auxiliary member 42 to the connecting portion 22 </ b> C formed at the front portion on both ends in the vehicle width direction of the front suspension member 22.
[0022]
At this time, since the auxiliary member 42 is linearly extended from the upper front side of the vehicle body to the lower rear side of the vehicle body, the load F from the front of the vehicle body to the rear side of the vehicle body via the auxiliary member 42 as shown in FIG. The component force F1 acts on the connecting portion 22C of the front suspension member 22 from above the vehicle body to below the vehicle body.
[0023]
As a result, the front mounting leg portion 22A of the front suspension member 22 applies a pulling load F2 downwardly to the vehicle body upper portion 12D of the kick portion 12C of the front side member 12 connected via the bracket 46. .
[0024]
Therefore, at the time of a vehicle front collision, a rise that occurs at a portion 12D on the front upper side of the vehicle body with respect to the kick portion 12C of the front side member 12, that is, above the vehicle body at a portion 12D on the vehicle front upper side of the kick portion 12C (FIG. (In the direction of arrow A).
[0025]
As a result, the vertical bending of the front side member 12 can be prevented, and the load on the kick portion 12C of the front side member 12 can be reduced.
[0026]
Further, in the present embodiment, the auxiliary member 42 is disposed along the left and right front cross member members 12, and the front end portion 42 </ b> A of the auxiliary member 42 is connected to the connecting portion between the front side member 14 and the front cross member 12. Therefore, the load sharing of the auxiliary member 42 at the time of a vehicle front collision increases. As a result, it is possible to effectively prevent the kick portion 12C of the front side member 12 from being raised in the portion 12D on the upper front side of the vehicle body.
[0027]
In the above, the present invention has been described in detail with respect to a specific embodiment, but the present invention is not limited to such an embodiment, and various other embodiments are possible within the scope of the present invention. Some will be apparent to those skilled in the art. For example, in the above-described embodiment, the auxiliary member 42 is formed of a cylindrical member having a rectangular cross section. However, the auxiliary member 42 is not limited to the cylindrical member having a rectangular cross section, and may be formed of another material such as a pipe member (cylindrical member). You may.
[0028]
Further, in the above-described embodiment, the bracket 30 constituting a part of the front side member 12 is fixed to the front side member 12 by the fixing means 34 such as a bolt. Alternatively, the bracket 30 may be fixed to the front side member 12. It may be fixed by other methods such as welding. Further, the front side member 12 and the bracket 30 may be configured integrally.
[0029]
【The invention's effect】
According to the first aspect of the present invention, the front portion of the front suspension member is connected to a portion on the front upper side of the vehicle body with respect to the kick portion of the front side member, and the rear portion of the front suspension member is connected to the kick portion of the front side member. A vehicle body structure connected to a lower portion of the rear of the vehicle body, the auxiliary member extending linearly from the upper front side of the vehicle body to the lower rear side of the vehicle body, and connecting the front side member and the front portion of the front suspension member. Therefore, there is an excellent effect that it is possible to prevent the kick portion of the front side member from being raised at a position on the upper front side of the vehicle body at the time of a vehicle front collision.
[0030]
According to a second aspect of the present invention, in the vehicle body structure according to the first aspect, the auxiliary member is disposed along the left and right front cross member members, and a front end portion connects the front side member and the front cross member. Therefore, when the vehicle is in a frontal collision, the kick portion of the front side member has an excellent effect of effectively suppressing a rise occurring in a portion on the upper front side of the vehicle body.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing a vehicle body structure according to an embodiment of the present invention.
FIG. 2 is a schematic plan view showing a vehicle body structure according to one embodiment of the present invention.
FIG. 3 is a perspective view showing the vehicle body structure according to the embodiment of the present invention, as viewed from the oblique inside rear side of the vehicle body.
[Explanation of symbols]
Reference Signs List 10 Body 12 Front side member 12C Kick portion 12D of front side member 12E Upper body front portion with respect to kick portion 12E Lower body rear portion with respect to kick portion 22 Front suspension member 22A Front mounting leg of front suspension member 22B Rear mounting leg portion 22C of front suspension member Connection portion 30 of front suspension member Bracket (front side member)
42 auxiliary members

Claims (2)

  1. A front portion of the front suspension member is connected to a portion on the vehicle body front upper side with respect to a kick portion of the front side member, and a rear portion of the front suspension member is connected to a body rear lower portion with respect to the kick portion of the front side member. A connected body structure,
    A vehicle structure comprising an auxiliary member linearly extending from a front upper side of the vehicle body to a rear lower side of the vehicle body and connecting the front side member and a front portion of the front suspension member.
  2. The said auxiliary member is arrange | positioned along the left and right front cross member members, and the front end part is connected with the connection part of the said front side member and a front cross member, The claim 1 characterized by the above-mentioned. Body structure.
JP2003032386A 2003-02-10 2003-02-10 Vehicle body structure Pending JP2004243785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003032386A JP2004243785A (en) 2003-02-10 2003-02-10 Vehicle body structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003032386A JP2004243785A (en) 2003-02-10 2003-02-10 Vehicle body structure

Publications (1)

Publication Number Publication Date
JP2004243785A true JP2004243785A (en) 2004-09-02

Family

ID=33018749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003032386A Pending JP2004243785A (en) 2003-02-10 2003-02-10 Vehicle body structure

Country Status (1)

Country Link
JP (1) JP2004243785A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008247267A (en) * 2007-03-30 2008-10-16 Mitsubishi Motors Corp Impact-absorbing structure for vehicle
JP2008273411A (en) * 2007-04-27 2008-11-13 Toyota Motor Corp Vehicle front body structure
JP2009101952A (en) * 2007-10-25 2009-05-14 Honda Motor Co Ltd Vehicle body front part structure
JP2012153259A (en) * 2011-01-26 2012-08-16 Honda Motor Co Ltd Front body of vehicle
JP2012153258A (en) * 2011-01-26 2012-08-16 Honda Motor Co Ltd Front body of vehicle
JP2013006518A (en) * 2011-06-24 2013-01-10 Mitsubishi Motors Corp Vehicle body front structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008247267A (en) * 2007-03-30 2008-10-16 Mitsubishi Motors Corp Impact-absorbing structure for vehicle
JP2008273411A (en) * 2007-04-27 2008-11-13 Toyota Motor Corp Vehicle front body structure
JP4529997B2 (en) * 2007-04-27 2010-08-25 トヨタ自動車株式会社 Body front structure
JP2009101952A (en) * 2007-10-25 2009-05-14 Honda Motor Co Ltd Vehicle body front part structure
JP2012153259A (en) * 2011-01-26 2012-08-16 Honda Motor Co Ltd Front body of vehicle
JP2012153258A (en) * 2011-01-26 2012-08-16 Honda Motor Co Ltd Front body of vehicle
US8714635B2 (en) 2011-01-26 2014-05-06 Honda Motor Co., Ltd Front body of vehicle
US8894134B2 (en) 2011-01-26 2014-11-25 Honda Motor Co., Ltd Front body of vehicle
JP2013006518A (en) * 2011-06-24 2013-01-10 Mitsubishi Motors Corp Vehicle body front structure

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