JP2010202008A - Vehicle body structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body structure allowing widening of a cabin and enhancing of strength against load input in a side face (a side collision, for instance). <P>SOLUTION: This vehicle body structure 11 includes a roll bar body 14 fixed to an under body 28. The roll bar body 14 is erected because both ends (an inside end part 37 and outside end part 38) are fixed to the under body 28, and is fixed by an L-shaped bar member 44 extended from the roll bar body 14 to a side body 31, directed to the front of a vehicle 12 via a curved part 41 and extended up to the vicinity of a getting on-and-off port 42 of the side body 31. In the L-shaped bar member 44, a bracket 46 for attaching a seat belt anchor 45 to the curved part 41 is attached. In the roll bar body 14, an outside leg part 56 having the outside end part 38 is extended to a rear part of the vehicle 12 and is connected to a rear damper base of a rear suspension via a rear damper fastening part 58 of the under body 28. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle body structure in which a roof is provided so as to be openable and closable above a seat, and a roll bar is disposed behind the seat.

  In the vehicle body structure, when the roll bar is provided on the vehicle body, the side bar of the roll bar is reinforced on the left and right sides of the vehicle body in a state where the side bar is reinforced later, and the upper bar extending left and right is provided at the upper end of the side bar. Some have improved strength (for example, see Patent Document 1 (FIG. 3)).

However, in the conventional technique (Patent Document 1), the side bar of the roll bar is dispersed by receiving a load inputted to the side of the center pillar or the like. In this case, the side bars cannot be used. For example, it is conceivable to arrange individual roll bars after the seats.
However, in order to widen the space of the passenger compartment, it is necessary to move the individual roll bar that receives the load with the seat to the rear of the vehicle, and the position of the roll bar is separated from the position of the other vehicle that inputs the load to the side. Therefore, there is a problem that it is difficult to increase the strength of the vehicle body.
Further, when the seat is moved to the rear of the vehicle, the position of the seat belt anchor needs to be moved to the rear of the vehicle together with the seat, and there is a problem that the seat belt anchor and the device for storing the hood approach each other.
In a convertible with a hood for the roof, there is no steel roof, so it is difficult to increase the strength of the vehicle body against the load from the rear suspension while reducing the weight.

JP-A-5-238339

  In the present invention, the convertible vehicle can be widened, the strength against the load input to the side surface (for example, side collision) can be increased, the seat belt anchor can be disposed near the seat, and the rear damper can be fastened. It is an object of the present invention to provide a vehicle body structure in which the strength of a part is increased.

  In order to solve the above-mentioned problem, the invention according to claim 1 includes a hood that covers the upper part of the passenger compartment in an openable and closable manner, and a roll bar body that is disposed at the rear part of the passenger compartment and is fixed to the underbody that forms the floor. , The roll bar main body is formed in a U shape and is fixed by being fixed to the underbody at both ends, and extends from the roll bar main body toward the side body forming the side wall of the passenger compartment. It is fixed by the L-shaped bar member extended to the vicinity of the entrance / exit of a side body toward the vehicle front via a curved part.

  In the invention which concerns on Claim 2, the bracket which attaches a seatbelt anchor to the curved part is attached to the L-shaped bar member, It is characterized by the above-mentioned.

  In the invention according to claim 3, the roll bar main body has an outer leg portion having an outer end portion arranged in the vicinity of the side body at both ends, extending rearward of the vehicle, and the rear portion via the rear damper fastening portion of the underbody. It is connected to the rear damper base of the suspension.

  In the invention according to claim 1, the roll bar main body is formed in a U shape and is fixed by being fixed to the underbody at both ends, and extends from the roll bar main body toward the side body forming the side wall of the passenger compartment. Since it is fixed by an L-shaped bar member that extends to the front of the vehicle through the curved portion and to the vicinity of the entrance / exit of the side body, even if the roll bar main body is moved rearward, it is input to the side surface (for example, side collision) Load can be dispersed by the L-shaped bar member. That is, the passenger compartment can be widened by moving the roll bar body toward the rear of the vehicle.

  Further, the load input to the side surface (for example, side collision) can be dispersed by the L-shaped bar member, and the strength against the load input to the side surface (for example, side collision) can be increased.

  In the invention which concerns on Claim 2, since the bracket which attaches a seatbelt anchor to the curved part is attached to the L-shaped bar member, a seatbelt anchor can be arrange | positioned near the seat along a roll bar main body.

  Moreover, the separate part which attaches a seatbelt anchor can be reduced by attaching the bracket which attaches a seatbelt anchor to a curved part beforehand.

  Furthermore, the load can be distributed to the bracket, the bending of the L-shaped bar member can be suppressed, and the strength against the load input to the side surface (for example, side collision) can be further increased.

  In the invention according to claim 3, the roll bar main body has an outer leg portion having an outer end portion arranged in the vicinity of the side body at both ends, extending rearward of the vehicle, and the rear portion via the rear damper fastening portion of the underbody. Since the suspension is connected to the rear damper base of the suspension, the rigidity of the rear damper fastening portion can be increased by transmitting the load input from the rear damper base to the rear damper fastening portion of the underbody to the roll bar body.

1 is a perspective view of a vehicle body structure according to an embodiment of the present invention. FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1. FIG. 3 is a view taken in the direction of arrow 3 in FIG. 1. FIG. 4 is a view taken in the direction of arrow 4 in FIG. 1. FIG. 5 is a view taken in the direction of arrow 5 in FIG. 1.

  Hereinafter, embodiments of the present invention will be described in detail with reference to examples.

  As shown in FIG. 1, the vehicle body structure 11 according to the embodiment includes a roll bar main body 14 provided in a driver's seat 13 and a roll bar main body 14 provided in a passenger seat 15, which is employed in a vehicle 12. In addition to the general purpose of the roll bar, the strength of the vehicle body 17 is improved. This will be specifically described below.

  As shown in FIGS. 1 to 5, the vehicle 12 is a convertible that can fold the hood 21 as shown by an arrow a <b> 1, and is a left-hand drive vehicle that includes a steering wheel 22 provided on the left of the vehicle 12. , A passenger compartment 23, a driver seat 13 provided on the left side of the passenger compartment 23, a seat 25 of the driver seat 13, a passenger seat 15 provided on the right, a seat 26 of the passenger seat 15, an underbody 28 of the vehicle body 17, a side body 31, A rear suspension 32 supported by the side body 31, a roll bar mechanism 34, and the vehicle body structure 11 are provided.

As shown in FIGS. 1 to 5, the vehicle body structure 11 includes a hood 21 that covers the upper part (the position of the roof) of the vehicle compartment 23 so as to be openable and closable, and an underbody 28 that is disposed on the rear portion 36 of the vehicle compartment 23 and forms a floor. And a roll bar main body 14 fixed to the head.
The roll bar main body 14 is formed in a U shape, and both ends (the inner end 37 and the outer end 38) are fixed to the underbody 28, and the roll bar main body 14 extends from the roll bar main body 14 to the side wall of the vehicle compartment 23. It is fixed by an L-shaped bar member 44 that extends toward the side body 31 that extends to the vicinity of the entrance / exit 42 of the side body 31 toward the front of the vehicle 12 via the curved portion 41.

The L-shaped bar member 44 is provided with a bracket 46 for attaching the seat belt anchor 45 to the curved portion 41.
The main body 47 of the L-shaped bar member 44 is obtained by plastic working a steel pipe from the center of the entire length into an L shape.

  The bracket 46 has a substantially U-shaped cross section, and is formed with a rounded portion 51 that coincides with the curved portion 41 on the opening side, continues to the rounded portion 51, and has a string side portion 52 formed on the center side of the radius of the curved portion 41, Bolts 54 that fasten the seat belt anchor 45 are screwed into upper portions 53 that are orthogonal to the string side portion 52 and are directed upward in the vehicle 12.

  In the roll bar main body 14, an outer leg portion 56 having an outer end portion 38 disposed in the vicinity of the side body 31 of both ends (the inner end portion 37 and the outer end portion 38) extends rearward of the vehicle 12, and the underbody 28. The rear damper 32 is connected to the rear damper base 61 (FIG. 1) of the rear suspension 32 via the rear damper fastening portion 58.

  Although the roll bar main body 14 has been described above, the steel pipe is plastic processed into a U shape from the center of the entire length, and the center of the outer leg portion 56, that is, the portion 63 where the L-shaped bar member 44 is fixed is moved to the rear of the vehicle. The U-shape is reversed with respect to the vehicle 12 when viewed from the front side of the vehicle 12 (viewpoint in FIG. 3), and the L-shaped bar member 44 is fixed. The outer end portion 38 is separated from the seat 25 by being bent into a U-shape from the portion 63 and is directed to the rear damper fastening portion 58 at the rear of the vehicle 12.

The underbody 28 includes a rear floor panel 65, a tire house 66 formed on the rear floor panel 65, and a rear damper fastening portion 58 formed continuously with the tire house 66.
The side body 31 includes an entrance / exit 42 and a center pillar 67 located behind the vehicle 12 in the frame of the entrance / exit 42.

  The roll bar mechanism 34 includes the roll bar main body 14 described above, the L-shaped bar member 44 whose ends are respectively fixed to the roll bar main body 14 and the side body 31, the roll bar main body 14 for the driver's seat 13, and the roll for the passenger seat 15. A connecting member 71 connected to the bar body 14 and fixed to the left and right side bodies 31 respectively, specifically to the tire house 66;

  The connecting member 71 is connected to the center in the height direction of the inner leg 73 of the roll bar main body 14 by the first lug 75, and the inner end member 76 at one end of the L-shaped bar member 44 is fastened to the first lug 75. A central clamp member 78 provided in the center of the L-shaped bar member 44 is fastened to the center of the outer leg portion 56 of the roll bar main body 14 via a second lug 77 at the center in the height direction. An outer leg end member 81 provided at the end portion 38 is fastened to a rib member 82 that is erected from the rear damper fastening portion 58 and joined to the tire house 66, and the outer end member 83 at the other end of the L-shaped bar member 44 is Fastened to the inner surface of the outer panel 85 of the side body 31.

  The roll bar main body 14 is directed to the lower side of the seat 25 with the inner end portion 37 being brought close to the seat 25 by bending the inner leg portion 73 from the center to which the L-shaped bar member 44 is fastened. .

The central clamp member 78 is formed integrally with the bracket 46. As a result, the number of parts can be reduced.

Next, the operation of the vehicle body structure 11 according to the embodiment of the present invention will be described.
In the vehicle body structure 11, when a load is input to the side surface of the vehicle 12, for example, in a side collision, the load is transmitted from the center pillar 67 of the side body 31 to the roll bar main body 14 by the L-shaped bar member 44. The strength against a load input to the side surface (for example, side collision) can be increased.
Moreover, since the L-shaped bar member 44 disperses the load to the connecting member 71, the strength against the load input to the side surface (for example, side collision) can be increased.

  The vehicle body structure 11 can increase the strength of the side body 31 by the L-shaped bar member 44 even if the seat is disposed rearward of the vehicle 12 as compared to a general convertible.

  In the vehicle body structure 11, when a load is input to the rear damper base 61 (FIG. 1) of the rear suspension 32, the outer end 38 and the outer leg of the roll bar main body 14 connected to the rear damper fastening portion 58. Since 56 is received and dispersed, the rigidity of the rear damper fastening portion 58 is increased.

  The roll bar main body 14 has the outer leg 56 opened to the rear of the vehicle and the inner leg 73 opened to the front of the vehicle in a side view of the vehicle (FIG. 5). The vehicle body rigidity can be increased.

  In addition, although the vehicle body structure of this invention is employ | adopted convertible in embodiment, it can employ | adopt other than convertible.

  The vehicle body structure of the present invention is suitable for conversion.

  DESCRIPTION OF SYMBOLS 11 ... Car body structure, 14 ... Roll bar main body, 21 ... Top, 23 ... Car compartment, 28 ... Underbody, 31 ... Side body, 32 ... Rear suspension, 36 ... Rear part of vehicle compartment, 37 ... Inner edge of roll bar main body , 38 ... outer end of roll bar main body, 41 ... curved part, 42 ... entrance / exit, 44 ... L-bar member, 45 ... seat belt anchor, 46 ... bracket, 56 ... outer leg, 58 ... rear damper fastening part 61 ... Rear damper base.

Claims (3)

In a vehicle body structure comprising: a hood that covers the upper part of the passenger compartment in an openable and closable manner; and a roll bar body that is disposed at the rear part of the passenger compartment and is fixed to an underbody that forms a floor.
The roll bar main body is formed in a U-shape and both ends thereof are fixed to the underbody, and extends from the roll bar main body to a side body that forms a side wall of the vehicle compartment via a curved portion. A vehicle body structure characterized by being fixed by an L-shaped bar member extending toward the front of the vehicle to the vicinity of the entrance / exit of the side body.   The vehicle body structure according to claim 1, wherein a bracket for attaching a seat belt anchor is attached to the curved portion of the L-shaped bar member.   In the roll bar body, an outer leg portion having an outer end portion disposed in the vicinity of the side body of the both ends extends rearward of the vehicle, and a rear damper of a rear suspension is provided via a rear damper fastening portion of the underbody. The vehicle body structure according to claim 1, wherein the vehicle body structure is connected to a base.

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