JP2006123731A - Seat mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat mounting structure capable of suppressing deformation of a vehicle body at a side collision with a simple configuration.
SOLUTION: In the seat mounting structure of the present invention, when a seat 6 is mounted between a side sill 3 and a floor tunnel 2, an external force applied to the side sill 3 during a side collision is applied between the side sill 3 and the floor tunnel 2. A bridging member 10 that is transmitted to the floor tunnel 2 is provided over the floor tunnel 2.
[Selection] Figure 1

Description

  The present invention relates to an improvement in a seat mounting structure in which a seat is mounted between a side sill and a floor tunnel.

  2. Description of the Related Art Conventionally, a seat mounting structure is known in which a seat is slidably mounted in a vehicle front-rear direction between a side sill and a floor tunnel (see, for example, Patent Document 1).

In this structure, the seat cushion is provided with a connecting member that transmits the external force applied to the vehicle body from the outside in the vehicle width direction to the inside during a side collision.
JP 2001-341567 A

  However, this conventional seat mounting structure is insufficient for suppressing vehicle body deformation at the time of a side collision, and further improvement is desired. In order to deliberately suppress the deformation of the vehicle body at the time of the side collision, a reinforcing member having a large mass must be provided on the vehicle body, which causes a problem that the weight increases.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a seat mounting structure that can suppress deformation of a vehicle body at the time of a side collision with a simple configuration.

  The seat mounting structure according to claim 1, wherein a seat is mounted between a side sill and a floor tunnel, and an external force applied to the side sill during a side collision is applied between the side sill and the floor tunnel. It is characterized in that a bridging member that is transmitted to the bridge is provided.

  The seat mounting structure according to claim 2, wherein the seat is provided so as to be slidable in the vehicle front-rear direction, and a slide rail extending in the vehicle front-rear direction is provided on a side wall of the side sill and a side wall of the floor tunnel, A pair of guided rails guided by the slide rail are provided at intervals in the vehicle width direction, and the bridging member is provided on the slide rail.

  The seat mounting structure according to claim 3 is characterized in that the bridging member is provided below a guided rail provided on the seat.

  The seat mounting structure according to claim 4, wherein a dimension between a distance from the floor tunnel to the side sill and a distance in a vehicle width direction of the guided rail provided on the seat is between the slide rail and the floor tunnel. An adjustment mechanism for adjusting the difference is provided.

  According to the first aspect of the present invention, since the bridging member is provided between the floor tunnel and the side sill, the input moment applied to the vehicle body from the outside at the time of a side collision can be reduced. The vehicle body deformation at the time of a side collision can be suppressed with a simple configuration.

  Since the mounting span of the seat in the vehicle width direction can be expanded, it is possible to expect an improvement in rigidity when holding the seat. In addition, the seated person sitting in the rear seat can easily put the toe of the leg into the lower space of the seat cushion in the front seat, and the comfort of the seated person in the rear seat is improved.

  According to the second aspect of the present invention, since the bridging member is provided on the slide rail on the vehicle body side, an external force applied to the vehicle body from the outside during a side collision can be efficiently transmitted to the inside of the vehicle body.

  According to the invention described in claim 3, since the bridging member is provided below the guided rail provided on the seat, the side slide function can be achieved without impeding the seat slide function and realizing a small size and light weight. An external force applied to the vehicle body from outside can be efficiently transmitted to the inside of the vehicle body.

  According to the invention described in claim 4, between the slide rail and the floor tunnel, an interval from the floor tunnel to the side sill and an interval in the vehicle width direction of the pair of guided rails provided on the seat. Since an adjustment mechanism for adjusting the dimensional difference is provided, an external force applied from the outside to the vehicle body at the time of a side collision can be efficiently transmitted to the inside of the vehicle body without impairing the sliding performance of the seat.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a seat mounting structure according to the present invention will be described below with reference to the embodiments shown in the drawings.

Example 1
In FIG. 1, 1 is a floor, 2 is a floor tunnel, and 3 is a side sill. Between the floor tunnel 2 and the side sill 3, a seat 6 roughly constituted by a seat cushion 4 and a seat back 5 is provided so as to be slidable in the vehicle front-rear direction. The side sill 3 includes an inner sill 3A and an outer sill 3B. The inner sill 3A is joined to the standing wall 1A of the floor 1, and the standing wall 1A is a side wall portion of the side sill 3.

  A rectangular frame 5 is provided inside the seat cushion 4, and a pair of leg portions 6A, 6A are provided on the frame 5 with an interval in the vehicle width direction. Guided rails 7 and 7 are provided on the pair of legs 6A and 6A, respectively.

  Slide rail plates 8, 8 extending in the vehicle front-rear direction are provided on the side wall 2 </ b> A of the floor tunnel 2 and the side wall of the side sill 3. The slide rail plates 8 and 8 are provided with guide rail portions 9 and 9 for guiding the guided rails 7 and 7. The guided rails 7 and 7 are guided by the guide rail portions 9 and 9.

  Appropriate gaps H1 and H2 are set between the guide rail portions 9 and 9 and the guided rails 7 and 7 as shown in an enlarged view in FIG. 2 so that the seat 6 can slide smoothly. It has become.

  The pair of slide rail plates 8, 8 are provided with a bridging member 10 that is positioned below the seat cushion 4 and extends in a direction crossing the floor tunnel 2 and the side sill 3. Here, the bridging member 10 is constituted by a cylindrical pipe member.

  As shown in FIG. 3, the slide rail plates 8 and 8 are provided with attachment portions 9A and 9A below the guide rail portions 9 and 9, and both ends of the bridging member 10 are connected to the attachment portions 9A and 9A. It is fixed by welding. As shown in FIG. 4, a pair of the bridging members 10 and 10 are provided at intervals in the longitudinal direction of the vehicle, and play a role of transmitting an external force F (see FIG. 1) applied to the side sill 3 to the floor tunnel 2 at the time of a side collision.

  When the bridging members 10 and 10 are provided below the seat cushion 4, the sliding of the seat 6 is not obstructed, so as shown in FIG. Thus, the total length of the vehicles 8 in the front-rear direction can be shortened, and the weight and size can be reduced while taking measures for deformation of the vehicle at the time of a side collision.

  On the other hand, as shown in FIG. 4B, the length of the slide rail plates 8 and 8 is increased with respect to the total length of the seat 6 in the vehicle front-rear direction, and the bridging members 10 and 10 are placed above the seat cushion 4. However, even in this case, it is possible to take measures for deformation of the vehicle at the time of a side collision without obstructing the sliding of the seat 6. it can.

In FIG. 4, reference sign Zf indicates the most forward position in the sliding direction of the sheet 6, and reference sign Zb indicates the rearmost position in the sliding direction of the sheet 6.
(Example 2)
A pair of mounting seats 12 are provided on the side wall portion 2A of the floor tunnel 2 at intervals in the vehicle front-rear direction in order to stand the slide rail plates 8 and 8 vertically in consideration of the inclination of the side wall portion 2A. . The mounting seat 12 is provided with an adjusting mechanism 13. The adjustment mechanism 13 includes an outer adjustment nut 14 and an inner adjustment nut 15. The outer adjustment nut 14 has a thread portion 16 formed on the inner periphery thereof, and the inner adjustment nut 15 has screw portions 17 and 18 formed on the outer periphery and inner periphery thereof. One end of the outer adjustment nut 14 is fixed to the mounting seat 12 by welding.

  The inner adjustment nut 15 is screwed into the outer adjustment nut 14, and the screw portion 16 of the outer adjustment nut 14 and the screw portion 17 of the inner adjustment nut 15 are in a reverse screw relationship. A mounting bolt insertion hole 19 is formed in the slide rail plates 8, 8. When the mounting bolt 20 is screwed into the inner adjustment nut 15 and the mounting bolt 20 is tightened, the inner adjustment nut 15 protrudes from the outer adjustment nut 14. Thus, the distance from the slide rail plate 8 attached to the floor tunnel 2 to the slide rail plate 8 attached to the side wall portion of the side sill 3 is adjusted, whereby the distance S1 from the floor tunnel 2 to the side sill 3 (FIG. 1). ) And the width S2 in the vehicle width direction of the pair of guided rails 7 and 7 provided on the seat 6 can be adjusted. As a result, the external force F applied to the vehicle body from the outside during a side collision can be efficiently transmitted to the interior of the vehicle body without impairing the sliding performance of the seat 6.

  As described above, the embodiment of the invention has been described. A pair of guided rails 6A and 6A provided on the leg portion 6A of the seat 6 are bolted to the side wall portion 2A of the floor tunnel 2 and the side wall portion of the side sill 3 (not shown). In the seat mounting structure in which the seat 6 is fixed between the floor tunnel 2 and the side sill 3, a bridging member 10 is provided on the pair of guided rails 7 and 7, You may make it reduce the external force applied to a vehicle body from the outside at the time of a collision.

It is a front view which shows the principal part structure of the sheet | seat attachment structure concerning Example 1 of this invention. It is the elements on larger scale which show the relationship between the slide rail board shown in FIG. 1, and a to-be-guided rail. It is a fragmentary perspective view which shows the principal part structure of the sheet | seat attachment structure concerning Example 1 of this invention. It is a figure for demonstrating the positional relationship of the slide rail board shown in FIG. 1, a sheet | seat, and a bridging member, Comprising: (a) shows the figure which provided the bridging member below the to-be-guided rail of a sheet | seat, (b) Fig. 6 shows a view in which a bridging member is provided above the guided rail of the seat. It is explanatory drawing which shows the principal part structure of the seat attachment structure concerning Example 2 of this invention, Comprising: The space | interval from a floor tunnel to a side sill and the guided rail provided in the sheet | seat between a slide rail and a floor tunnel. It is a figure which shows the example which provided the adjustment mechanism for adjusting the dimensional difference with a vehicle width direction space | interval. FIG. 6 is a partial view showing a detailed configuration of the adjustment mechanism shown in FIG. 5.

Explanation of symbols

2 ... floor tunnel 3 ... side sill 6 ... sheet 10 ... bridging member

Claims (4)

  In a seat mounting structure in which a seat is attached between a side sill and a floor tunnel, a bridging member is provided between the side sill and the floor tunnel so as to bridge an external force applied to the side sill in a side collision to the floor tunnel. A seat mounting structure characterized by that.   The seat is slidable in the vehicle front-rear direction, a slide rail extending in the vehicle front-rear direction is provided on a side wall of the side sill and a side wall of the floor tunnel, and a pair of guides guided by the slide rail is provided on the seat The seat mounting structure according to claim 1, wherein guided rails are provided at intervals in the vehicle width direction, and the bridging member is provided on the slide rail.   The seat attachment structure according to claim 2, wherein the bridging member is provided below a guided rail of the seat.   An adjusting mechanism is provided between the slide rail and the floor tunnel to adjust the dimensional difference between the distance from the floor tunnel to the side sill and the distance in the vehicle width direction of the guided rail provided on the seat. The seat mounting structure according to claim 3, wherein the seat mounting structure is provided.

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