JP2009126332A - Vehicle structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the weight of a load transfer body while securing the strength of the load transfer body. <P>SOLUTION: The vehicle structure is provided with seat rods arranged on right and left seats of a vehicle to extend in a vehicular width direction and the load transfer body 10 arranged on a vehicular floor between the seat rods of the right and left seats and receives a collision load from a vehicular side direction by a load transfer body 10 via a seat rod of a seat and transfers the collision load to a vehicular side wall at an opposite side of a collision portion via a seat rod of the other seat from the load transfer body 10. The load transfer body 10 is provided with a pedestal 20 fixed to the vehicular floor F and a load receiving part 30 arranged on the pedestal 20 and constituted to be capable of abutting on the seat rods. The pedestal 20 is molded of resin, and the load receiving part 30 is molded of resin mixed with a reinforcing material. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention includes a seat rod provided on the left and right seats of the vehicle so as to extend in the vehicle width direction, and a load transmission body provided on the vehicle floor and disposed between the seat rods of the left and right seats. A configuration in which a collision load from a side is received by the load transmission body via a seat rod of one seat and transmitted from the load transmission body to a vehicle side wall opposite to the collision site via a seat rod of the other seat. It relates to the vehicle structure.

A vehicle structure related to this is described in Patent Document 1.
According to the vehicle structure, as shown in FIG. 8, a high-rigidity console box 103 that functions as a load transmission body is disposed between the driver seat 101 and the passenger seat 102. The console box 103 includes an upper open type container and a lid portion that closes the opening of the container, and the lid portion is configured to be fitted to the peripheral edge of the opening of the container. Thereby, when the cover part is closed, the console box 103 becomes one box shape, and the intensity | strength with respect to a collision load becomes high. That is, as shown in FIG. 8, a collision load from the left side of the vehicle is received by the console box 103 via the seat rod 102r of the passenger seat 102, and the right side of the body is passed from the console box 103 via the seat rod 101r of the driver seat 101. Can be transmitted to the center pillar Cp and the like.
However, in consideration of the function as the console box 103, there is a limit in improving the strength because a reinforcing wall or a support material cannot be provided in the internal space of the container. For this reason, it is difficult to efficiently transmit the side collision load to the seat rod 101r of the driver's seat 101, the center pillar Cp on the right side of the body, and the like. Moreover, since it is necessary to increase the thickness dimension of a container and a cover part more than needed in order to improve intensity | strength with the said structure, it is not economical and a weight also increases.

In order to solve the above problem, as shown in FIGS. 9 and 10, a technique is known in which a floor box 110 is provided as a load transmission body separately from the console box 103. In this vehicle structure, a steel steel floor box 110 is attached so as to cover the raised portion Fa at the center of the floor F.
The floor box 110 includes a box body portion 112 that receives a collision load from the seat rods 101r and 102r, and a pedestal portion 114 that fixes the floor box 110 to the raised portion Fa. The box body 112 is formed with a height that reaches the height equal to or higher than the seat rods 101r and 102r of the driver's seat 101 and the passenger's seat 102 from the upper surface of the raised portion Fa. A reinforcing plate (not shown) that is folded back into a V-shaped cross section is attached.
The pedestal portion 114 is bent into a trapezoidal shape so as to cover the upper surface and the left and right side walls of the raised portion Fa, and is integrated with the box body portion 112. The floor box 110 is fixed to the floor F by bolting the pedestal part 114 to the upper surface and the left and right side walls of the raised part Fa.
With the above configuration, the strength of the floor box 110 can be improved to a desired strength.

JP 2001-151022 A

  In the case of the floor box 110 described above, it is necessary to increase the thickness dimension of the steel plate in order to improve the strength. Here, the strength required in the floor box 110 is the upper part of the box body 112 where the seat rods 101r and 102r of the driver's seat 101 and the passenger seat 102 collide. However, since the floor box 110 is a single member from the box body 112 to the pedestal 114, when the strength of the floor box 110 is improved, the overall thickness of the steel plate from the box body 112 to the pedestal 114 is increased. There is a need to. For this reason, the weight of the floor box 110 increases by improving the strength of the floor box 110.

  The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to reduce the weight of the load transmission body while ensuring the strength of the load transmission body. is there.

The above-described problems are solved by the inventions of the claims.
According to a first aspect of the present invention, there is provided a seat rod provided on the left and right seats of the vehicle so as to extend in the vehicle width direction, and a load transmitting body provided on the vehicle floor and disposed between the seat rods of the left and right seats. It receives the collision load from the side of the vehicle with the load transmission body through the seat rod of one seat, and transmits it from the load transmission body to the side wall of the vehicle opposite to the collision site through the seat rod of the other seat. The load transmission body includes a pedestal portion that is fixed to the vehicle floor, and a load receiving portion that is installed on the pedestal portion so that the seat rod can come into contact therewith. The pedestal portion is formed of a resin, and the load receiving portion is formed of a resin mixed with a reinforcing material.

According to the present invention, the load transmission body includes a pedestal portion fixed to the vehicle floor and a load receiving portion with which the seat rod can abut. For this reason, it is possible to reduce the strength of the pedestal portion in a state where the strength of the load receiving portion necessary for transmitting the load is ensured. That is, it is possible to reduce the weight of the pedestal portion by the amount of the strength reduction.
Further, the pedestal portion is formed of resin, and the load receiving portion is formed of resin mixed with a reinforcing material. For this reason, for example, compared with the case where a load receiving part and a base part are shape | molded with a steel plate etc., a load transmission body can be reduced in weight significantly.

According to the invention of claim 2, the left and right ends of the load receiving portion are projected in the vehicle width direction from the left and right ends of the pedestal portion.
That is, since the width dimension of the pedestal portion can be set to the minimum necessary in a state where the width dimension of the load receiving portion is maximized, the load transmitting body can be efficiently reduced in weight.

According to invention of Claim 3, the said base part and the said load receiving part are installed in the inner side of the outer side wall of a console box, and the lower side of the goods storage part of the console box.
For this reason, the load transmission body is not exposed in the room, and the appearance of the room does not deteriorate.

  According to the present invention, it is possible to reduce the weight of the load transmission body while ensuring the strength of the load transmission body.

[Embodiment 1]
Hereinafter, a vehicle structure according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 8. Here, FIG. 1 is a side view of a load transmission body used in the vehicle structure according to the present embodiment, FIG. 2 is a rear view of the load transmission body, and FIG. 3 is a perspective view of the load transmission body. 4 and 5 are a perspective view and a longitudinal sectional view of a load receiving portion of the load transmitting body, and FIGS. 6 and 7 are a perspective view and a plan sectional view of a pedestal portion of the load transmitting body.
In addition, front and rear, right and left, and up and down in the figure correspond to front and rear, left and right and up and down of the vehicle.

<Overview of vehicle structure>
In the vehicle structure according to the present embodiment, a collision load from the side of the vehicle is received by the load transmission body 10 via the seat rod 2r of one seat (for example, the passenger seat 2 in FIG. 8), and from the load transmission body 10 This is a structure for transmitting to the vehicle side wall opposite to the collision site via the seat rod 1r of the other seat (driver's seat 1).
The seat rod 1r of the driver's seat 1 is housed inside the seat cushion 1c of the driver's seat 1 and is disposed so as to extend in the vehicle width direction. Similarly, the seat rod 2r of the passenger seat 2 is housed inside the seat cushion 2c of the passenger seat 2, and is disposed so as to extend in the vehicle width direction at the same height as the seat rod 1r of the driver seat 1. Yes.
As shown in FIGS. 1 and 2, the load transmission body 10 is disposed below the item storage portion 3 s in the outer wall 3 k of the console box 3, and the seat rod 1 r of the driver seat 1 and the passenger seat 2 are arranged. The seat rod 2r is sandwiched from the vehicle width direction.

<About the load transmission body 10>
The load transmission body 10 is a member for transmitting the collision load received from the seat rod 2r of one seat (for example, the passenger seat 2) to the seat rod 1r of the other seat (for example, the driver's seat 1). The load transmitting body 10 includes a mounting bracket 12 that fixes the load transmitting body 10 to the raised portion Fa of the vehicle floor F, a pedestal portion 20, and a load receiving portion 30 that is installed on the pedestal portion 20 and receives the collision load. It consists of and.
As shown in FIGS. 2, 3, etc., the mounting bracket 12 is a bracket that is fixed to the upper left and right corners of the raised portion Fa on the vehicle floor F, and two pieces are used as a set. The left and right mounting brackets 12 are bilaterally symmetric, and are formed in a substantially square shape in cross section from the upper plate portion 12u and the inclined side plate portion 12k. And the bolt hole 12h through which the fixing volt | bolt B1 (refer FIG. 2) of the load transmission body 10 is passed through the upper-plate part 12u of the attachment metal fitting 12 is formed in two places front and back. Further, the inclined side plate portion 12k of the mounting bracket 12 is formed with two bolt holes 12x through which a bolt B2 for fixing the mounting bracket 12 to the raised portion Fa of the vehicle floor F is passed.

<About the pedestal 20 of the load transmitting body 10>
The pedestal portion 20 of the load transmitting body 10 is a pedestal that holds a load receiving portion 30 described later at a height equal to the seat rod 1r of the driver seat 1 and the seat rod 2r of the passenger seat 2. As shown in FIGS. 6 and 7, the pedestal portion 20 includes a rectangular tube portion 21 composed of front, rear, left and right side walls, and a rectangular upper plate portion 22 that closes the upper opening of the rectangular tube portion 21, and the lower portion is opened. It is formed in a box shape. And the flange part 24 overlapped with the upper-plate part 12u of the said attachment metal fitting 12 is provided in the lower end of the left-right side wall of the square cylinder part 21. As shown in FIG. Between the flange portion 24 and the side wall of the rectangular tube portion 21, ribs 23r are provided at the positions of the front end and the rear end, and a rib-like protrusion 23t is formed at the center. And in the said flange part 24, as shown in FIG. 3, the bolt hole 24h which overlaps with the bolt hole 12h of the upper-plate part 12u of the attachment bracket 12 is formed between the front-and-rear rib 23r and the rib-shaped protrusion 23t. Yes.
Here, as shown in FIG. 1, the raised portion Fa of the vehicle floor F is inclined so that the front side of the vehicle is raised, so that the upper plate portion 12 u of the mounting bracket 12 fixed to the raised portion Fa. Is also inclined so that the front side is higher. For this reason, the rectangular tube portion 21 of the pedestal portion 20 is formed in a forward inclined state in accordance with the inclination of the upper plate portion 12u of the mounting bracket 12. Thereby, in a state where the flange portion 24 of the pedestal portion 20 is fixed to the upper plate portion 12u of the mounting bracket 12, the rectangular upper plate portion 22 of the pedestal portion 20 becomes substantially horizontal.

The interior of the rectangular tube portion 21 of the pedestal portion 20 is partitioned into a plurality in the vehicle front-rear direction by a front-rear partition wall 26 extending in the vehicle width direction, as shown in the plan sectional view of FIG. The inside of the rectangular tube portion 21 is divided into two in the vehicle width direction by left and right partition walls 27 extending in the vehicle front-rear direction at the center. Thereby, the twist strength and buckling strength of the base part 20 improve.
Nuts 28 for bolting load receiving portions 30 to be described later are embedded in the four corners of the rectangular upper plate portion 22 of the pedestal portion 20. Further, a positioning recess 29 in which the positioning projection 39 of the load receiving portion 30 is fitted is formed in the vicinity of the intersection of the left and right partition walls 27 and the front and rear partition walls 26 before and after the central portion of the rectangular upper plate portion 22. ing.
The pedestal portion 20 is an injection-molded product of resin, and as the resin material, for example, a mixture of polycarbonate (PC) resin and polybutylene terephthalate (PBT) resin is used. As described above, since the pedestal portion 20 is a resin injection-molded product, even if it has a complicated shape, it can be easily molded.

<About the load receiving portion 30 of the load transmitting body 10>
The load receiving portion 30 of the load transmitting body 10 is such that the end portions of the seat rods 1r and 2r of the driver's seat 1 and the passenger seat 2 are arranged via the outer wall 3k of the console box 3 when the vehicle is collided from the side. It is a colliding part. As shown in FIG. 2, the load receiving portion 30 is formed wider than the pedestal portion 20, and both left and right ends thereof protrude in the vehicle width direction from the left and right ends of the pedestal portion 20. For this reason, the space | interval of the seat rods 1r and 2r of the driver's seat 1 and the passenger seat 2 and the load receiving part 30 can be made as small as possible.
As shown in FIGS. 4 and 5, the load receiving portion 30 is a wall member that connects the left and right side wall portions 31 with which the seat rods 1 r and 2 r collide and the left and right side wall portions 31, and has a cross-section extending in the vehicle width direction. And a U-shaped corrugated partition wall 33. In other words, the partition wall 33 partitions the space between the left and right side walls 31 into a large number of spaces.
The side wall part 31 is formed in a substantially square thick plate shape that is long in the front-rear direction, and as shown in FIG. 5 and the like, the front lower corner of the side wall part 31 is cut off. That is, the lower surface of the front portion of the side wall portion 31 is an inclined surface that gradually increases on the front side.

As shown in FIG. 5, the partition wall portion 33 includes a downward first U-shaped portion 331, an upward second U-shaped portion 332, a downward third U-shaped portion 333, and an upward fourth U-shaped portion, which are provided in order from the front side. 334, a downward fifth U-shaped portion 335, and an upward sixth U-shaped portion 336.
The first U-shaped part 331 is narrow and has a height dimension set to about ½ of the height dimension of the side wall part 31, and the upper end position of the first U-shaped part 331 is the upper end position of the side wall part 31. It is matched. The lower end position of the first U-shaped portion 331 is aligned with the position of the inclined surface of the side wall portion 31. The second U-shaped portion 332 is configured to be continuous with the downward first U-shaped portion 331, and is set to have a width dimension and a height dimension substantially equal to the first U-shaped portion 331. The third U-shaped portion 333 is configured to be continuous with the upward second U-shaped portion 332, and has a width dimension approximately twice that of the first and second U-shaped portions 331 and 332. The position of the upper wall portion 333 u of the third U-shaped portion 333 is aligned with the upper position of the side wall portion 31. As shown in FIG. 4, the upper wall 333u of the third U-shaped portion 333 has a nut 34 into which a fixing bolt (not shown) of the item storage portion 3s of the console box 3 is screwed to an end portion in the left-right direction. Embedded.

The fourth U-shaped portion 334 is configured to be continuous with the downward third U-shaped portion 333 and has a width dimension substantially equal to that of the third U-shaped portion 333. The position of the lower wall portion 334 d of the fourth U-shaped portion 334 is matched with the lower end position of the side wall portion 31. Further, as shown in FIG. 5, a positioning projection 39 is formed on the lower wall portion 334d of the fourth U-shaped portion 334 so as to protrude downward at the center position in the left-right direction. The positioning projection 39 is a projection that fits into the positioning recess 29 formed in the rectangular upper plate portion 22 of the pedestal portion 20, and includes a large-diameter head 39h and a pin portion 39p. And the pin part 39p of the positioning protrusion 39 is formed in the cross-sectional shape of the cross section (refer FIG. 4).
Further, the lower wall portion 334d of the fourth U-shaped portion 334 is bolted to a position where it overlaps with the nut 28 of the rectangular upper plate portion 22 of the pedestal portion 20 in a state where the positioning protrusion 39 is fitted to the positioning recess 29 of the pedestal portion 20. A hole (not shown) is formed.
The fifth U-shaped portion 335 is configured to be continuous with the upward fourth U-shaped portion 334, and is formed to be slightly narrower than the fourth U-shaped portion 334. The position of the upper wall portion 335 u of the fifth U-shaped portion 335 is aligned with the upper position of the side wall portion 31.

The sixth U-shaped portion 336 is configured to be continuous with the downward-facing fifth U-shaped portion 335, and is formed in a shape substantially equal to the fourth U-shaped portion 334. That is, the position of the lower wall portion 336d of the sixth U-shaped portion 336 is aligned with the lower end position of the side wall portion 31, and the positioning projection 39 and the bolt hole (not shown) are formed on the lower wall portion 336d. The sixth U-shaped portion 336 is provided with a rear end flange portion 336 f at the rear upper end position, and the rear end flange portion 336 f is aligned with the rear upper end position of the side wall portion 31. Then, as shown in FIG. 4, a nut 34 into which a fixing bolt of the item storage portion 3 s of the console box 3 is screwed is embedded in an end portion of the rear end flange portion 336 f of the sixth U-shaped portion 336 in the left-right direction. ing.
The load receiving portion 30 is a resin injection-molded product. As the resin material, for example, a material obtained by mixing glass fiber with polypropylene (PP) resin is used. Thus, since the load receiving portion 30 is a resin injection molded product, it can be easily molded even if it has a complicated shape. Further, since the glass fiber is mixed with the polypropylene (PP) resin, the strength of the load receiving portion 30 is higher than the strength of the pedestal portion 20. In addition, as a resin material, it is also possible to use a material in which carbon fiber is mixed with polypropylene (PP) resin, or a material in which glass fiber is mixed with nylon.
That is, the said glass fiber, carbon fiber, etc. correspond to the reinforcing material of this invention.

<Assembly method of load transmitting body 10>
First, the left and right mounting brackets 12 of the load transmitting body 10 are bolted to the raised portion Fa of the vehicle floor F. Next, the bolt hole 24 h of the flange portion 24 of the pedestal portion 20 is overlapped with the bolt hole 12 h of the upper plate portion 12 u of the mounting bracket 12, and the pedestal portion 20 is bolted to the mounting bracket 12. Thereby, the base part 20 is fixed to the vehicle floor F so that the square upper board part 22 may become horizontal.
Next, the positioning protrusions 39 of the load receiving portion 30 are inserted into the positioning recesses 29 formed in the rectangular upper plate portion 22 of the pedestal portion 20, and the load receiving portions 30 are inserted into the nuts 28 at the four corners of the rectangular upper plate portion 22. Bolt holes (not shown) of the lower wall portions 334d and 336d are matched. And the load receiving part 30 is bolted to the base part 20 using the said nut 28 and the said bolt hole (refer FIG. 3). Next, the bolt holes (not shown) of the item storage portion 3s of the console box 3 are aligned with the nuts 34 provided on the upper wall portion 333u and the rear end flange portion 336f of the load receiving portion 30, and the item storage portion 3s is loaded. It is bolted to the receiving part 30. Finally, the load transmission body 10 and the article storage portion 3 s are covered with the outer wall 3 k of the console box 3.

<About the function of the vehicle structure>
According to the vehicle structure described above, as shown in FIGS. 2 and 8, when a collision load S is received from the left side of the vehicle, the left center pillar Cp is pushed into the passenger compartment by the collision load S and the passenger seat 2 is moved to the driver's seat. Press to the 1 side. Thus, the collision load S is transmitted to the load receiving portion 30 of the load transmitting body 10 through the seat rod 2r of the passenger seat 2. The collision load S is transmitted from the load receiving portion 30 to the seat rod 1r of the driver's seat 1 and is transmitted to the right center pillar Cp by the seat rod 1r. Here, the load receiving portion 30 has a configuration in which the left and right side wall portions 31 are supported by a partition wall portion 33 having a substantially U-shaped cross section extending in the vehicle width direction, and the space between the side wall portions 31 is defined by the partition wall portion 33. It is partitioned into a number of spaces. Furthermore, the load receiving part 30 is formed of a material obtained by mixing glass fiber with polypropylene (PP) resin. For this reason, the load receiving portion 30 has a high buckling strength, and the collision load S can be efficiently transmitted to the seat rod 1r and the right center pillar Cp of the driver's seat 1. That is, the right center pillar Cp receives the collision load S transmitted by the seat rod 1r of the driver's seat 1 and is deformed outward from the passenger compartment.
Thus, since the collision load S from the left side of the vehicle not only deforms the left center pillar Cp but also the right center pillar Cp, the deformation amount of the left center pillar Cp is reduced and the vehicle interior of the left center pillar Cp is reduced. The amount of entering can be suppressed.

<Advantages of the vehicle structure according to this embodiment>
According to the vehicle structure according to the present embodiment, the load transmission body 10 includes the pedestal portion 20 fixed to the vehicle floor F and the load receiving portion 30 with which the seat rods 1r and 2r can abut. For this reason, it is possible to reduce the strength of the pedestal portion 20 in a state where the strength of the load receiving portion 30 necessary for transmitting the load is ensured. That is, it is possible to reduce the weight of the pedestal portion 20 by the amount of decrease in strength.
The pedestal portion 20 is molded from resin, and the load receiving portion 30 is molded from resin mixed with a reinforcing material (glass fiber or the like). For this reason, for example, compared with the case where a load receiving part and a base part are shape | molded with a steel plate etc., the load transmission body 10 can be reduced in weight significantly.
Moreover, since the width dimension of the base part 20 can be set to the minimum necessary in the state which made the width dimension of the load receiving part 30 the maximum, the load transmission body 10 can be reduced in weight efficiently.
Furthermore, since the pedestal 20 and the load receiver 30 are installed on the inner side of the outer wall 3k of the console box 3 and below the item storage portion 3s of the console box 3, the load transmitting body 10 is disposed in the vehicle interior. There is no exposure and the appearance of the room does not deteriorate.

<Example of change>
Here, the present invention is not limited to the above-described embodiment, and can be modified without departing from the gist of the present invention. For example, in this embodiment, the example which comprises the load receiving part 30 from the left-and-right side wall part 31 and the partition wall part 33 of a cross-sectional substantially U waveform was shown. However, instead of the partition wall portion 33 having a substantially U-shaped cross section, the partition wall portion can be formed in a honeycomb structure.
Moreover, although the example which bolts the load receiving part 30 and the base part 20 was shown, the structure connected with a load receiving part and a base part by fitting is also possible.
Moreover, although the example which forms the base part 20 by PC resin and PBT resin was shown, it is also possible to make a thickness dimension small using the material which mixed glass fiber in PP resin.

It is a side view of the load transmission body used with the vehicle structure which concerns on Embodiment 1 of this invention. It is a rear view of the load transmission body. It is a perspective view of the load transmission body. It is a perspective view of the load receiving part of the said load transmission body. It is a longitudinal cross-sectional view of the load receiving part of the said load transmission body. It is a perspective view of the base part of the said load transmission body. It is a plane sectional view of the pedestal part of the load transmission body. It is a model rear view showing the function of a vehicle structure. It is a model rear view showing the conventional vehicle structure. It is a perspective view showing the conventional vehicle structure.

Explanation of symbols

F ... Vehicle floor 1 ... Driver's seat 1r ... Seat rod 2 ... Passenger seat 2r ... Seat rod 3 ... Console box 3s ... · Article storage unit 3k ··· Outer wall 10 ··· Load transmitting body 20 ··· Base 30 · · · Load receiver

Claims (3)

A seat rod provided on the left and right seats of the vehicle so as to extend in the vehicle width direction, and a load transmission body provided on the vehicle floor and disposed between the seat rods of the left and right seats, The vehicle structure has a configuration in which a collision load is received by the load transmission body through a seat rod of one seat and is transmitted from the load transmission body to a vehicle side wall opposite to the collision site through the seat rod of the other seat. And
The load transmission body includes a pedestal portion that is fixed to the vehicle floor, and a load receiving portion that is installed on the pedestal portion so that the seat rod can come into contact therewith,
The vehicle structure according to claim 1, wherein the pedestal portion is formed of a resin, and the load receiving portion is formed of a resin mixed with a reinforcing material. A vehicle structure according to claim 1,
The vehicle structure according to claim 1, wherein the left and right ends of the load receiving portion project in the vehicle width direction from the left and right ends of the pedestal portion. A vehicle structure according to claim 1 or claim 2,
The vehicle structure, wherein the pedestal part and the load receiving part are installed on the inner side of the outer wall of the console box and below the item storage part of the console box.

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