JP2009234336A - Automobile front body structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automobile front body structure capable of avoiding substantial reformation of the front body structure for producing a derivative automobile of a design where a hood front part is located at a high position. <P>SOLUTION: The front part of a hood 7 is positioned at a higher location than the upper surface of an upper member 11, and raising members 20, 20 extending oppositely to the hood 7 are connected to the right and left side members 9, 9. The right and left raising members 20 comprise a raising body 21 extending in an upward or downward direction and an extension member 22 connected to an upper end part 21a of the raising body 21 and extending from the upper end part 21a toward the rear part of a vehicle, and the extension member 22 is connected to the right and left apron members 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention includes a left and right side member, an upper member that is coupled between the upper ends of the left and right side members, and a left and right apron member that is connected to the front pillar and extends forward of the vehicle. The present invention relates to a front body structure of an automobile provided with a hood arranged so as to cover the upper part thereof.

  In order to stimulate demand, automobile manufacturers are developing various automobiles with different designs corresponding to user preferences. In this case, if the vehicle body is designed for each vehicle type, there will be a problem that the number of examination steps for ensuring quality against strength, vibration, noise, etc. occurs each time and the production cost increases.

In order to suppress such an increase in cost, a derivative vehicle having a different design is manufactured by using an existing vehicle body as it is. For example, Patent Document 1 discloses that the left and right end portions of the upper member of the radiator support are raised upward in order to place only the headlight at a high position while the front portion of the hood is held at a low position. A structure has been proposed in which a headlight is disposed below the left and right end portions by bending.
JP-A-6-211162

  By the way, the said conventional structure is a structure for arrange | positioning only a headlight in a high place in the state which hold | maintained the front part of the food | hood in the low position. For this reason, for example, when manufacturing a derivative vehicle having a design in which the front portion of the hood is located at a high place, it is necessary to drastically change the entire upper member of the radiator support, the left and right side members, and the cost There is a problem of rising.

  The present invention has been made in view of the above-described conventional situation, and has a front vehicle body structure for a vehicle that can avoid a significant vehicle body change when manufacturing a design derived vehicle in which the front portion of the hood is positioned at a high place. The issue is to provide.

  The present invention includes a left and right side member extending in the vehicle front-rear direction, and a left and right side member that is coupled to the front end of the left and right side member and extends in the vehicle vertical direction, and the left and right side members. An upper member extending in the vehicle width direction connected between the upper end portions of the material, a front pillar disposed in the rear of the side member of the left and right side members and extending in the vertical direction, and the left and right A front apron member coupled to the front pillar of the vehicle and extending forward of the vehicle, and a hood disposed to cover the left and right apron members, the upper member and the left and right side members. In the vehicle body structure, the front portion of the hood is arranged to be positioned higher than the upper surface of the upper member, and the left and right side members are raised so as to face the front portion of the hood. The member is bonded The left and right raising members have a raising body extending in the vertical direction, and an extension member coupled to the upper end portion of the raising body and extending rearward from the upper end portion, the left and right extensions. The member is characterized by being connected to the left and right apron members.

  According to the front vehicle body structure according to the present invention, the front portion of the hood is disposed at a higher position than the upper surface of the upper member, and the raising member extending so as to face the front portion of the hood is coupled to the left and right side members. The hood can be supported by the left and right raising members. Therefore, it is possible to cope with a design derived vehicle in which the front portion of the hood is positioned at a high place by adding a raised member to the existing left and right side members, and the cost is increased as compared with the case where the entire front body is changed. Can be suppressed.

  In the present invention, the raising member has a raising body extending in the vertical direction and an extending member extending backward from the upper end portion of the raising body, and the extension member is coupled to the apron member. Is transmitted from the extension member of the raising member to the front pillar via the apron member, and the impact force can be efficiently transmitted to the rear of the vehicle body, and the influence on the passenger compartment can be suppressed.

  In the present invention, since the raising members extending upward toward the hood are connected to the left and right side members, a space is formed between the hood and the upper member. Thereby, the impact force when a colliding object collides with the hood from above can be absorbed by the hood deforming downward.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 7 are views for explaining a front body structure of an automobile according to an embodiment of the present invention. FIG. 1 is a perspective view of a radiator support constituting the front body of the automobile, and FIG. 3 is an exploded perspective view of the vehicle body, FIG. 3 is a cross-sectional view of the raising member disposed on the radiator support (a cross-sectional view taken along the line III-III in FIG. 1), and FIG. 4 is a cross-sectional view of the headlight attached to the raising member. 1 is a cross-sectional view of the hood stopper member attached to the raising member (cross-sectional view of the VV line of FIG. 1), and FIG. 6 is a cross-sectional view of the hood lock bracket of the radiator support (FIG. 1). FIG. 7 is a side view of an automobile that is a basic vehicle of a derivative vehicle. In the description of this embodiment, the terms front and rear and left and right mean front and rear and left and right when viewed from the front of the vehicle, unless otherwise specified.

  In the figure, reference numeral 1 denotes a front body of an automobile. The front body 1 includes left and right side members 2 and 2 extending in the longitudinal direction of the vehicle, a radiator support 3 coupled to a front end 2b of the left and right side members 2, and the left and right side members. Front pillars 4 and 4 extending in the vertical direction disposed behind the radiator support 3 of the member 2 and apron members having rear end portions 13a coupled to the left and right front pillars 4 and extending forward from the front pillar 4 13 and 13, left and right apron members 13, and a hood 7 disposed so as to cover the radiator support 3.

  Further, the front vehicle body 1 includes suspension towers 14 and 14 coupled to inner walls of the left and right apron members 13, and left and right suspension bodies 14 and 14 coupled integrally to the suspension tower 14, the apron members 13 and the side members 2. Reinforcing members 19, 19 and left and right front fenders 5, 5 arranged so as to cover the outside in the vehicle width direction between the radiator support 3 and the front pillar 4 are provided. Further, bumper in hoses 8 extending in the vehicle width direction are fixed to the front end surfaces 2a of the left and right side members 2 with bolts.

  The radiator support 3 includes left and right side members 9 and 9 that extend in the vehicle vertical direction, and a lower member 10 that extends in the vehicle width direction and is coupled between the lower ends of the left and right side members 9. The left and right side members 9 have a structure in which an upper member 11 extending in the vehicle width direction and coupled between the upper ends of the left and right side members 9 is assembled so as to form a substantially rectangular shape.

  The lower member 10 has a U-shaped cross section that opens downward. Left and right end portions 10a. The lower end portions 9a and 9a of the left and right side members 9 are joined to 10a by welding.

  The left and right side members 9 are a combination of an upper side portion 9d and a lower side portion 9e formed in a U-shaped cross section that opens to the outside in the vehicle width direction. The right side member 2 is joined to the inner wall of the front end portion by welding.

  The upper member 11 has a U-shaped cross section that opens downward. The left and right end portions 11a and 11a of the upper member 11 are arranged so as to cover the upper end portions 9b of the left and right side members 9 from above, and are detachably attached to the side members 9 by a pair of bolts 12 and 12, respectively. Fastened and fixed. In order to assemble a radiator (not shown), the upper member 11 is assembled in a state where the upper member 11 is removed obliquely upward, and then the upper member 11 is attached with bolts 12.

  The hood 7 has a schematic structure in which the outer peripheral edge portion 7c is coupled to each other so as to form a hollow shape in the outer panel 7a and the inner panel 7b. The hood 7 is rotatably supported by the front vehicle body 1 via left and right hinge members (not shown) attached to the rear edge portion, and is attached to the vehicle width direction center portion of the front edge portion. The striker 7d can be locked to the front vehicle body 1.

  The front portion of the hood 7 is disposed so as to be positioned higher than the upper surface of the upper member 11. That is, the automobile of the present embodiment is a derivative car having a different design by using the aforementioned front body 1 as it is. Specifically, as shown in FIGS. The hood 7 is arranged such that the front edge 7f thereof is positioned higher than the front edge 7f 'of the hood 7' of the existing front body 1 by a height h.

  A hood lock bracket 15 extending from the upper member 11 so as to face the lower surface of the hood 7 is joined to the center of the upper member 11 in the vehicle width direction by welding. A lock member 16 is bolted and fixed to the hood lock bracket 15, and a striker 7 d of the hood 7 is detachably engaged with the lock member 16.

  The hood lock bracket 15 is supported by a support member 17 that spans between the bracket 15 and the bumper-in hose 8 and is coupled by bolting. As a result, the strength against an impact load acting when the hood 7 is closed is increased.

  A radiator grille 18 is disposed between the hood 7 in front of the radiator support 3 and the bumper inhose 8. Headlights 19 and 19 are disposed outside the left and right side members 9 in the vehicle width direction.

  The left and right headlights 19 have a structure in which a lens 19b is attached to an opening portion of a housing 19a having a generally bowl shape, and a mounting portion that is bent and extends rearward at an upper edge portion of the housing 19a. 19c is formed (see FIG. 4).

  The left and right side members 9 are connected to raised members 20, 20 extending upward from the side members 9 toward the lower surface of the hood 7. A space A is formed between the front portion of the hood 7 and the upper member 11 by the left and right raising members 20 (see FIG. 1).

  The left and right raising members 20 include a raising body 21 that extends in the vertical direction, and an extension member 22 that is coupled to the upper end portion 21a of the raising body 21 and extends rearward from the upper end portion 21a.

  The left and right raised main bodies 21 are made of a sheet metal having a substantially U-shaped cross section in which a front flange portion 21d extending in the vertical direction, a rear edge projecting outward in the width direction, and rear flange portions 21e and 21e are bent. belongs to. The lower portions 21b of the left and right raised main bodies 21 are coupled to the outer wall surface 9c in the vehicle width direction of the side member 9 by welding.

  The extension member 22 is a sheet metal having a substantially U-shaped cross section that opens downward and includes an upper wall 22a having a substantially flat surface, and front and rear walls 22b and 22b extending downward from front and rear edges of the upper wall 22a. It is made of.

  The extension member 22 has a coupling portion 22g disposed so as to cover the upper end surface of the raised main body 21 from above, and an extension portion 22h extending from the coupling portion 22g to the rear of the vehicle. The left and right extension portions 22h extend from the coupling portion 22g so as to extend outward in the vehicle width direction, and then extend substantially linearly toward the rear of the vehicle.

  The front wall 22b and the rear wall 22b of the coupling portion 22g are coupled to the front and rear flange portions 21e of the raised body 21 by welding.

  The rear end portion 22i of the extension portion 22h is joined to the upper wall rear end portion 13a of the apron member 13 by welding.

  A radiator grille mounting hole 22d is formed in the upper wall 22a of the coupling portion 22g. Fender mounting brackets 23 and 23 are joined to the upper wall 22a of the left and right extension portions 22h by welding so as to protrude upward.

  A headlight mounting hole 22e is formed near the outside of the radiator grille mounting hole 22 on the upper wall 22a of the coupling portion 22g. An attachment portion 19c of the headlight 19 is attached to the headlight attachment hole 22a by a bolt 19d inserted from above. Thereby, the left and right headlights 19 are arranged at a height corresponding to the height h position of the hood 7.

  In the vicinity of the outer side of the headlight mounting hole 22e of the upper wall 22a of the coupling portion 22g, a hood stopper mounting seat surface 22f is formed so as to protrude upward. A rubber stopper member 24 is screwed onto the mounting seat surface 22f so as to adjust the vertical protrusion amount (see FIG. 5). By adjusting the amount of protrusion of the left and right stopper members 24, the accuracy of the mating surface between the hood 7 and the left and right front fenders 5 can be adjusted.

  The inner panel 7b of the hood 7 is formed with a contact seat 7e that contacts the stopper member 24 when the hood 7 is closed. Thereby, the impact force when the hood 7 is closed is alleviated.

  According to the present embodiment, the raising member 20 extending so as to face the hood 7 is coupled to the left and right side members 9, 9 of the radiator support 3, and the hood 7 is supported by the left and right raising members 20. By simply adding the raising member 20 to the existing left and right side members 9, a design derived vehicle in which the front portion of the hood 7 is positioned higher than the upper surface of the upper member 11 can be manufactured. An increase in cost can be suppressed compared to a case where the entire vehicle body is changed.

  In the present embodiment, the raising member 20 includes a raising body 21 and an extension member 22 extending rearward from the upper end portion 21a of the raising body 21, and the extension member 22 is coupled to the apron member 13, so that the vehicle The impact force from the front is transmitted from the extension member 22 of the raising member 20 to the front pillar 4 via the apron member 13, so that the impact force can be efficiently transmitted to the rear of the vehicle body, which has an influence on the passenger compartment. Can be suppressed.

  In this embodiment, since the raising member 20 that supports the hood 7 is connected to the left and right side members 9 so as to extend upward, a space A is formed between the hood 7 and the upper member 11. It will be. Thereby, the impact force when the colliding object collides with the hood 7 from above can be absorbed by the hood 7 being deformed downward, and the impact force on the colliding object can be suppressed.

  Further, since the left and right raising members 20 are coupled to the outer wall surfaces 9c of the left and right side members 9, the upper member 11 can be attached and detached without interfering with the raising members 20 during the assembly work of the radiator. Can do.

  In the above embodiment, the case where the stopper member 24 with which the hood 7 abuts is attached to the left and right raising members 20, but in the present invention, the hood can be rotated to the left and right raising members 20. It is also possible to attach a hinge member to be supported. In this case, a stopper member is attached to the rear end of the hood.

  Alternatively, the stopper member 24 may be attached to the hood 7 so that the protrusion amount can be adjusted, and an abutment seat surface on which the stopper member 24 abuts on the upper wall 22a of the raising member 20 may be formed.

It is a perspective view of the radiator support which constitutes the front body of the car by one embodiment of the present invention. It is a disassembled perspective view of the said front vehicle body. It is sectional drawing (III-III sectional view taken on the line of FIG. 1) of the raising member arrange | positioned at the said radiator support. It is sectional drawing (IV-IV sectional view taken on the line of FIG. 1) of the headlight attached to the said raising member. It is sectional drawing (VV sectional view taken on the line of FIG. 1) of the stopper member attached to the said raising member. It is sectional drawing (VI-VI sectional view taken on the line of FIG. 1) of the hood lock bracket arrange | positioned at the said radiator support. It is a side view of the said motor vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front vehicle body 2 Side member 3 Radiator support 4 Front pillar 7 Hood 9 Side member 11 Upper member 13 Apron member 20 Raising member 21 Raising main body 21a Upper end 22 Extension member

Claims (1)

Left and right side members extending in the longitudinal direction of the vehicle, and left and right side members coupled to the front end portions of the left and right side members and extending in the vehicle vertical direction, and upper ends of the left and right side members An upper member extending in the vehicle width direction, which is bridged between them, a front pillar which is disposed behind the side members of the left and right side members and extends in the vertical direction, and the left and right front pillars A front body structure of an automobile comprising: an apron member coupled and extending forward of the vehicle; and a hood disposed so as to cover the left and right apron members, the upper member and the left and right side members. There,
The front portion of the hood is arranged to be positioned higher than the upper surface of the upper member,
The left and right side members are combined with a raising member extending to face the front portion of the hood,
The left and right raising members include a raising body extending in the vertical direction, and an extension member coupled to the upper end portion of the raising body and extending rearward from the upper end portion,
The front body structure of an automobile, wherein the left and right extension members are coupled to the left and right apron members.

Images