JP2010254226A - Structure for suppressing side collision deformation of automobile and cushion frame for rear seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for suppressing side collision deformation of an automobile capable of preventing a vehicle body from being deformed when the vehicle causes side collision by remodeling a cushion frame for rear seat into such a structure that receives collision energy generated when the vehicle causes side collision directly and easily. <P>SOLUTION: This structure for suppressing side collision deformation of the automobile includes two floor cross members 21a, 21b provided in a front floor panel 21 of a floor panel 2 to prevent the vehicle body from being deformed due to collision energy from a side face of the body 1 of the automobile having front doors, rear doors, and a center pillar 23 arranged between these doors and the cushion frame 3 for rear seat of a bench seat type fixed on a center floor panel 22 of the floor panel 2. The cushion frame 3 for rear seat is constituted by providing both of end parts 3a, 3b in the direction of width of the vehicle body 1 at positions opposing to the rear doors and fixing intrusion prevention plates 31, 32 for receiving collision energy on both of end parts 3a, 3b, respectively. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an automobile side collision deformation suppressing structure and a rear seat cushion frame, and more particularly to an automobile side collision deformation suppressing structure and a rear seat cushion frame that suppress deformation at the time of a side collision using the rear seat cushion frame.

  2. Description of the Related Art Conventionally, a vehicle is provided with a floor cross member on a floor panel in order to receive collision energy in a side collision and suppress the amount of bending of the vehicle body (see, for example, Patent Document 1 and Patent Document 2). . For example, as shown in FIG. 4, in the case of a vehicle body 50 of a four-door vehicle, the floor cross member is provided at two locations on the front floor panel 511, which is a portion from the lower end of the dash panel of the floor panel 51 to the foot of the rear seat. The center floor panel 512, which is a portion below the cushion frame 52 of the rear seat, is provided at one location. The first floor cross member 511 a of the front floor panel 511 is provided at the position of the front seat, and the second floor cross member 511 b is provided at the position of the center pillar 53. The center floor panel 512 is formed one step higher to incorporate the fuel tank at the position where the rear seat is disposed, and a floor cross member 512a is disposed on the front side of the step portion.

  The vehicle body 50 having such a floor panel structure has been subjected to a side collision test based on a side collision standard according to Article 18 of the safety standard of the Road Transport Vehicle Law. In this side collision test, as shown in FIG. 5, the safety of the collision is evaluated by causing the moving barrier 60 to collide with the side surface of the vehicle body around the center pillar of the vehicle body. The side collision test is performed with the front door and the rear door set on the vehicle body 50.

  In the moving barrier 60, a barrier face 60a reflecting the front characteristic of the automobile is fixed on the collision surface side. Here, the front characteristic of the automobile refers to the shape of the front face of the automobile.

JP-A-8-175425 JP 2002-331968 A

However, in the conventional vehicle body structure described in the background art, as shown in FIGS. 6 and 7, the height position at which the floor cross members 511 a, 511 b, and 512 a are provided on the vehicle body 50 and the barrier face 60 a of the moving barrier 60 are provided. because large spacing of H ₂ and height position of the collision center, a floor cross member 511a collision energy by moving the barrier 60, 511b, efficiently transmitted at 512a, can not be dispersed, it is transmitted directly to the center pillar and the door As a result, the crash safety evaluation was adversely affected. In FIG. 6, a two-dot chain line denoted by reference numeral 61 indicates the range of the moving barrier 60, and a hatched portion denoted by reference numeral 61a indicates the range of the barrier face 60a.

  The present invention has been made to solve such a conventional problem, and an automobile that suppresses deformation at the time of a side collision by improving the rear seat cushion frame to a structure that easily receives the collision energy in the side collision. An object of the present invention is to provide a side impact deformation suppressing structure and a rear seat cushion frame.

  The side impact deformation suppressing structure for a vehicle, which is the first mode for achieving the above object, suppresses vehicle body deformation due to collision energy from the side surface of the vehicle having a center pillar disposed between the front door and the rear door. In order to achieve this, a plurality of floor cross members provided on the floor panel and a bench seat type rear seat cushion frame fixed on the center floor panel of the floor panel are provided. Both end portions in the direction are provided at positions facing the rear door, and intrusion prevention plates for receiving collision energy are fixed to both end portions. In the present specification, the “vehicle body” means the monocoque structure body itself.

  According to the side collision deformation suppressing structure for an automobile according to the first aspect as described above, the rear seat cushion frame can be applied even when the collision energy from the side surface is received at a position higher than the position where the floor cross member of the floor panel is provided. Since the intrusion prevention plate is fixed to both ends provided at the position facing the rear door of the door, the intrusion prevention plate can easily receive the collision energy. Therefore, only the floor cross member of the conventional floor panel can be used. The amount of intrusion into the vehicle interior due to bending of the center pillar or door can be reduced as compared with the case of receiving collision energy from such side surfaces.

  According to a second aspect of the present invention, in the side collision deformation suppressing structure for an automobile according to the first aspect, the intrusion prevention plate is used for a side collision test based on a side collision standard according to Safety Standard Article 18 of the Road Transport Vehicle Law. The moving barrier is disposed at a height where the barrier face directly collides. According to the side impact deformation suppressing structure for an automobile according to the second aspect as described above, it is possible to cope with a side collision test in which an actual situation of an automobile accident is analyzed and reflected.

  According to a third aspect of the present invention, in the side collision deformation suppressing structure for an automobile according to the first aspect or the second aspect, the floor cross member is provided at a position where the front door and the center pillar of the front floor panel are located. It is what. According to such a third aspect of the structure for suppressing side collision deformation of an automobile, in addition to the operation and effect of the first aspect, the floor cross member is attached to the center floor panel as well as the front door and center pillar of the front floor panel. The weight of the floor panel can be reduced as compared with the conventional vehicle body structure provided.

  In addition, the rear seat cushion frame according to the fourth aspect for achieving the above object is provided with a floor cross member to suppress deformation of the vehicle body due to collision energy from the side surface of the vehicle body having the front door and the rear door. In the rear seat cushion frame fixed on the center floor panel of the floor panel, the center rod extending in the width direction of the vehicle body is disposed in parallel with the center rod in the horizontal direction, and both end portions thereof are bent, respectively. A substantially U-shaped cushion rod fixed to both ends, an intrusion prevention plate fixed to each end of the center rod and positioned opposite to the rear door to receive collision energy, and both ends of the center rod The center rod is fixed to each side It is formed in a shape extending toward the rear side of the vehicle body, and its front end is fixed to the floor panel and the gusset plate fixed to the floor panel, and fixed to the floor panel so as to support the cushion rod It consists of a floor pipe. In the present specification, “extended” means being in an extended state.

  According to the cushion frame for a rear seat according to the fourth aspect as described above, even if the collision energy from the side surface is received at a position higher than the position where the floor cross member of the floor panel is provided, it is disposed at a position facing the rear door. The intrusion prevention plate can easily receive the collision energy directly, and the collision energy received by the intrusion prevention plate can be efficiently transmitted and distributed by the two gusset plates together with the center rod. The amount of intrusion into the vehicle compartment due to the bending of the center pillar and the door can be reduced as compared with the case where only the floor cross member receives collision energy from such a side surface.

  According to a fifth aspect of the present invention, in the rear seat cushion frame according to the fourth aspect, a reinforcing gusset plate for suppressing a bending moment caused by collision energy is fixed to a portion of the center rod where the gusset plate is fixed. It is what has been. According to the rear seat cushion frame according to the fifth aspect, in addition to the operation and effect of the first aspect, the reinforcing gusset plate can further suppress the bending moment of the center rod due to the collision energy. And the amount of entry of the door into the vehicle compartment can be reduced as compared with the first mode.

  According to the automobile side impact deformation suppressing structure and the rear seat cushion frame of the present invention, the rear seat cushion frame is improved to a structure that can easily receive the collision energy in the side collision. It can be suppressed from the structure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a preferred embodiment of a side impact deformation suppressing structure for a vehicle and a cushion frame for a rear seat according to the present invention, in which (A) is a perspective view of the vehicle side impact deformation suppressing structure, and (B) is a rear seat shown in FIG. It is the perspective view which expanded the cushion frame for use. FIG. 2 is a schematic side view of FIG. 1A, showing a relationship between a floor cross member, a rear seat cushion frame, and a moving barrier. FIG. 3 is a schematic view of the automobile side collision deformation suppressing structure according to the present invention as seen from the rear side, and is a view showing a relationship between a rear seat cushion frame and a moving barrier. It is a perspective view which shows the side collision deformation | transformation suppression structure of the conventional motor vehicle. It is explanatory drawing which shows the side collision test of the motor vehicle by a moving barrier. FIG. 5 is a schematic side view of FIG. 4 and shows a relationship between a floor cross member and a moving barrier. It is the schematic diagram which looked at the side collision deformation | transformation suppression structure of the conventional motor vehicle from the rear side, and is a figure which shows the relationship between a floor cross member and a moving barrier.

  EMBODIMENT OF THE INVENTION Hereinafter, the example for implementing the side collision deformation | transformation suppression structure of a motor vehicle and the cushion frame for rear seats of this invention is demonstrated based on drawing. 1A is a perspective view showing a side surface of a vehicle body 1 of an automobile having a center pillar 23 disposed between these doors together with a front door and a rear door of a four-door vehicle, and FIG. It is the perspective view which expanded the part by which the rear door of this vehicle body 1 is arrange | positioned.

  As shown in FIG. 1 (A), the structure for suppressing side collision deformation of an automobile according to the present invention extends from the lower end of the dash panel of the floor panel 2 to the foot of the rear seat in order to suppress deformation of the vehicle body due to collision energy from the side surface of the vehicle body 1. Floor cross members 21a and 21b provided at two locations of the front floor panel 21 that is a portion of the floor, and a bench seat type rear seat cushion frame 3 fixed on the center floor panel 22 of the floor panel 2. ing. Note that the center floor panel 22 is formed one step higher so as to incorporate the fuel tank at the position where the rear seat is disposed.

  In the floor cross members 21a and 21b, the first floor cross member 21a is provided at the position of the front seat, and the second floor cross member 21b is provided at the position of the center pillar 23. In such floor cross members 21a and 21b, the first floor cross member 21a receives the collision energy from the side surface of the vehicle body 1 near the front seat, and the second floor cross member 21b is in the vehicle body 1 near the center pillar 23. It is structured to receive impact energy from the side.

  The rear seat cushion frame 3 has both end portions 3a, 3b in the width direction of the vehicle body 1 at positions facing the rear door, and both end portions 3a, 3b have intrusion prevention plates 31, 32 for receiving collision energy, respectively. It is fixed.

  The side collision deformation suppressing structure having such a configuration allows the rear seat cushion frame 3 even when the collision energy from the side surface of the vehicle body 1 is received at a position higher than the position where the floor cross members 21a and 21b of the floor panel 2 are provided. Since the intrusion prevention plates 31 and 32 are fixed to both end portions 3a and 3b provided at positions facing the rear door, the intrusion prevention plates 31 and 32 can easily receive the collision energy directly.

  The rear seat cushion frame 3 includes, for example, as shown in FIG. 1B, a center rod 33 extending in the width direction of the vehicle body 1 and both ends 34a disposed in parallel with the center rod 33 in the horizontal direction. 34b is bent and fixed to both ends 33a and 33b of the center rod 33, and the center rod 33 is fixed to both ends 33a and 33b of the center rod 33. The front end portions 35 a and 36 a are fixed to the gusset plates 35 and 36 fixed to the center floor panel 22 of the floor panel 2 and the cushion rod 34. The center floor panel 22 of the floor panel 2 so as to support the cushion rod 34 The intrusion prevention plates 31 and 32 are fixed to both end portions 33a and 33b of the center rod 33 so as to be disposed at positions facing the rear door in order to receive collision energy. ing. The fixing points of these members are fixed by welding, but may be bolted.

  The center rod 33 is formed in a substantially straight line in the width direction of the vehicle body 1, and the gusset plates 35 and 36 are easily bent by the collision energy at both ends 33 a and 33 b of the center rod 33. It is formed with a width that does not bend. Therefore, even if collision energy is applied to the intrusion prevention plates 31 and 32, the center rod 33 and the gusset plates 35 and 36 can efficiently transmit and disperse them.

  Further, the floor pipe 37 is formed in a substantially U-shape, and both ends are fixed to the cushion rod 34 so as to be provided downward from the cushion rod 34.

  The fixing points of the members of the rear seat cushion frame 3 having such a configuration are fixed by welding, but may be bolted. Further, the position where the gusset plates 35 and 36 are fixed to the center floor panel 22 is bolted by a portion 22a which is one step higher than the center floor panel 22, and the position where the floor pipe 37 is fixed to the center floor panel 22 is fixed to the center floor panel 22. It is bolted using a mounting plate or the like at a portion 22b lower than the portion 22a of the panel 22.

  By configuring the rear seat cushion frame 3 in this manner, even if the collision energy from the side surface is received at a position higher than the position where the floor cross members 21a and 21b of the floor panel 2 are provided, the rear seat cushion frame 3 is positioned so as to face the rear door. The arranged intrusion prevention plates 31 and 32 can easily receive the collision energy directly, and the collision energy received by the intrusion prevention plates 31 and 32 can be efficiently transmitted to the two gusset plates 35 and 36 together with the center rod 33. Since it can be dispersed, the amount of intrusion into the vehicle compartment due to the bending of the center pillar and the door can be reduced as compared with the case where only the floor cross member of the conventional floor panel receives impact energy from such a side surface.

  Further, the rear seat cushion frame 3 is configured such that reinforcing gusset plates 38 and 39 for suppressing a bending moment caused by collision energy are fixed to the upper surface of the portion of the center rod 33 where the gusset plates 31 and 32 are fixed. Good. By fixing the reinforcing gusset plates 38 and 39 to the upper surface of the portion of the center rod 33 where the gusset plates 31 and 32 are fixed, the reinforcing gusset plates 38 and 39 are bent by the collision energy of the center rod 33. Since the moment can be suppressed, the amount of intrusion of the center pillar or door into the vehicle interior can be reduced from the configuration pattern of the center rod 33 and the gusset plates 35 and 36. The intrusion prevention plates 31 and 32 completely cover the center rod 33 and the reinforcing gusset plates 38 and 39 fixed to the center rod 33 when viewed from the side of the vehicle body in order to efficiently receive the collision energy. In addition, it is necessary to have a thickness that does not easily buckle when collision energy is applied due to side collision. The intrusion prevention plates 31 and 32 have a thickness that is not easily buckled by collision energy in a side collision test based on a side collision standard according to Article 18 of the Safety Standards of the Road Transport Vehicle Law. About 0.0 mm.

  Further, between the center rod 33 and the cushion rod 34, two cushion plates 301 and 302 for fixing the seat cushion are fixed so as to straddle. The two cushion plates 301 and 302 are fixed at a position where the first cushion plate 301 is provided in the vicinity of the first gusset plate 35 and the second cushion plate 302 is provided in the vicinity of the second gusset plate 36. ing.

  About the deformation state of the vehicle body when the side collision test based on the side collision standard according to the safety standard Article 18 of the Road Transport Vehicle Law is performed on the vehicle body having the side collision deformation suppressing structure of the automobile of the present invention configured as described above. This will be described with reference to FIGS. In FIG. 2, a two-dot chain line denoted by reference numeral 41 indicates the range of the moving barrier 4, and a hatched portion denoted by reference numeral 41a indicates the range of the barrier face 4a.

When the moving barrier 4 collides with the side of the vehicle body with the center pillar 23 of the vehicle body 1 as the center, the height position of the intrusion prevention plates 31 and 32 of the rear seat cushion frame 3 and the collision center of the barrier face 4a of the moving barrier 4 Since the distance H _{1 from the} height position becomes small, even if the collision energy from the side surface of the vehicle body 1 is received at a position higher than the position where the floor cross members 21a, 21b of the floor panel 2 are provided, this intrusion prevention plate 31 and 32 can easily receive the collision energy directly. Accordingly, it is possible to reduce the amount of intrusion into the vehicle interior due to the bending of the center pillar and the door, compared to the case where the collision energy from the side surface is received only by the floor cross member of the conventional floor panel.

  The intrusion prevention plates 31 and 32 may be arranged at a height where the barrier face of the moving barrier used for the side collision test based on the side collision standard based on the safety standard Article 18 of the Road Transport Vehicle Law directly collides. Good. By arranging the intrusion prevention plates 31 and 32 in this way, it is possible to cope with a side collision test that reflects and reflects the actual situation of a car accident.

  Further, in the automobile side impact deformation suppressing structure of the present invention, a floor cross member may be provided below the rear seat cushion frame 3 as in the case of a conventional vehicle body structure unless an increase in weight is taken into consideration. Furthermore, the automobile employing the rear seat cushion frame 3 of the present invention shown in FIG. 1 (B) is not limited to a 4-door car but may be a 2-door car.

  Although the present invention has been described with the specific embodiments shown in the drawings, the present invention is not limited to the embodiments shown in the drawings, and is known so far as long as the effects of the present invention are achieved. It goes without saying that any configuration can be adopted.

DESCRIPTION OF SYMBOLS 1 ... Vehicle body 2 ... Floor panel 21a, 21b ... Floor cross member 22 ... Center floor panel 3 ... Rear seat cushion frame 3a, 3b ... Both ends 31, 32 ... Intrusion prevention plate 33 ... Center rod 33a, 33b …… Both ends 34 …… Cushion rods 34a, 34b …… Both ends 35, 36 …… Gusset plate 37 …… Floor pipe 38,39 …… Reinforcing gusset plate 23 …… Center pillar

Claims (5)

In order to suppress the deformation of the vehicle body due to the collision energy from the side surface of the vehicle body having a center pillar disposed between the doors together with the front door and the rear door, a plurality of floor cross members provided on the floor panel, With a bench seat type rear seat cushion frame fixed on the center floor panel,
The rear seat cushion frame has both end portions in the width direction of the vehicle body provided at positions facing the rear door, and an intrusion prevention plate for receiving the collision energy is fixed to each end portion. A structure for suppressing side impact deformation of an automobile.   The intrusion prevention plate is disposed at a height position where a barrier face of a moving barrier used in a side collision test based on a side collision standard according to Article 18 of the safety standard of the Road Transport Vehicle Law directly collides. The side collision deformation suppressing structure for an automobile according to claim 1.   3. The side collision deformation suppressing structure for an automobile according to claim 1, wherein the floor cross member is provided at a portion of the front floor panel where the front door and the center pillar are located. In the cushion frame for the rear seat fixed on the center floor panel of the floor panel provided with the floor cross member in order to suppress the vehicle body deformation due to the collision energy from the vehicle body side surface of the automobile having the front door and the rear door,
A center rod extending in the width direction of the vehicle body;
A substantially U-shaped cushion rod which is arranged in parallel with the center rod in the horizontal direction and which is bent at both ends and fixed to both ends of the center rod;
An intrusion prevention plate fixed to each of the both ends of the center rod and disposed at a position facing the rear door to receive the collision energy;
A gusset plate fixed to each of the both end portions of the center rod and formed in a shape extending from the center rod toward the rear side of the vehicle body, the tip of which is fixed to the floor panel;
A rear seat cushion frame comprising a floor pipe fixed to the cushion rod and fixed to the floor panel so as to support the cushion rod.   The rear seat cushion frame according to claim 4, wherein a reinforcing gusset plate for suppressing a bending moment caused by the collision energy is fixed to a portion of the center rod where the gusset plate is fixed. .

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