JP6020425B2 - Mounting structure for vehicle seat - Google Patents

Description

  The present invention relates to a mounting structure for a vehicle seat.

  A seat bracket attached to a front side surface of a floor panel below a rear portion of a seat is disclosed (see Patent Document 1). The seat bracket is disposed so as to overlap the tunnel side member in the vertical direction.

JP 2005-161975 A

  It has been found that the rigidity of the attachment point on the rear side of the seat among the attachment points of the vehicle seat in the vehicle greatly affects the riding comfort performance of the vehicle. In the conventional example described above, the rigidity of the attachment point of the vehicle seat is increased by disposing the tunnel side member below the seat bracket in the vehicle, but there is still room for improvement.

  The present invention has been made in view of the above facts, and an object thereof is to improve the riding comfort performance of a vehicle.

The mounting structure for a vehicle seat according to claim 1 includes a floor panel provided on a floor portion of a passenger compartment, a tunnel portion joined to the floor panel and formed to protrude upward from the floor panel, and the floor panel. vertical walls and to be joined to constitute a closed cross section, a mounting bracket for use in mounting of the vehicle seat to the floor, the vehicle of the mounting bracket provided on the vehicle upper side of the floor panel and the tunnel portion A reinforcing part which is provided on the lower side of the vehicle and below the floor panel and is joined to the floor panel to form a closed cross section, and a column which passes through the floor panel and is interposed between the mounting bracket and the reinforcing part a member, said threaded into the upper end of the strut member from the cabin side, a first bolt for fastening said strut member and the vehicle seat and the mounting bracket, the The lower end of the pillar member is screwed from the passenger compartment outer side, has a second bolt for fastening said strut member and the strong member.

  In this vehicle seat mounting structure, a column member is provided between a mounting bracket used for mounting the vehicle seat on the floor and a reinforcing portion on the vehicle lower side of the mounting bracket and on the vehicle lower side of the floor panel. Since it is interposed, the mounting rigidity of the vehicle seat is high. For this reason, the riding comfort performance of the vehicle can be improved.

  According to a second aspect of the present invention, in the vehicle seat mounting structure according to the first aspect, the reinforcing portion extends in the vehicle width direction of the tunnel portion extending in the vehicle longitudinal direction at the vehicle width direction central portion of the floor portion. Both ends are extended to the vehicle lower side of the floor panel.

  In this vehicle seat mounting structure, since the reinforcing portion is configured by extending both ends of the tunnel portion in the vehicle width direction to the vehicle lower side of the floor panel, the vehicle seat is not increased without increasing the number of parts. The mounting rigidity can be increased.

  According to a third aspect of the present invention, in the vehicle seat mounting structure according to the first or second aspect, the reinforcing portion is provided on each of the right side and the left side of the floor portion with respect to the vehicle width direction central portion. The left and right reinforcing portions are connected in the vehicle width direction by a connecting reinforcing member.

  In this vehicle seat mounting structure, the left and right reinforcing portions are connected in the vehicle width direction by the connecting reinforcing member, so that the mounting rigidity of the vehicle seat is further increased. For this reason, the riding comfort performance of the vehicle can be further improved.

  According to a fourth aspect of the present invention, in the vehicle seat mounting structure according to the third aspect, the connection reinforcing member is also provided on an under member provided on the vehicle width direction outer side of the reinforcing portion on the vehicle lower side of the floor panel. Are combined.

  In this vehicle seat mounting structure, since the connection reinforcing member is coupled not only to the left and right reinforcing portions but also to the under member, the mounting rigidity of the vehicle seat is further increased. For this reason, the riding comfort performance of the vehicle can be further improved.

  According to a fifth aspect of the present invention, in the vehicle seat mounting structure according to any one of the first to fourth aspects, the mounting bracket is a mounting point of a vehicle width direction inner portion of the rear portion of the vehicle seat. It has become.

  Among the attachment points of the vehicle seat, the attachment rigidity of the rear portion of the vehicle seat greatly affects the riding comfort performance. Conventionally, the attachment point of the rear portion of the vehicle seat in the vehicle width direction is the rear portion of the vehicle seat. Rigidity was low compared to the mounting point on the outside in the vehicle width direction. In the vehicle seat mounting structure according to the fifth aspect, the mounting bracket reinforced by the reinforcing portion and the column member is the mounting point of the inner portion in the vehicle width direction. For this reason, the input from the rear part of the vehicle seat can be suppressed, and the riding comfort performance can be improved.

  As described above, according to the vehicle seat mounting structure of the first aspect, it is possible to obtain an excellent effect that the riding comfort performance of the vehicle can be improved.

  According to the vehicle seat mounting structure of the second aspect, it is possible to obtain an excellent effect that the mounting rigidity of the vehicle seat can be increased without increasing the number of parts.

  According to the vehicle seat mounting structure of the third aspect, it is possible to obtain an excellent effect that the riding comfort performance of the vehicle can be further improved.

  According to the vehicle seat mounting structure of the fourth aspect, an excellent effect that the riding comfort performance of the vehicle can be further improved is obtained.

  According to the vehicle seat mounting structure of the fifth aspect, it is possible to obtain an excellent effect that the ride comfort performance can be improved by suppressing the input from the rear portion of the vehicle seat.

1 and 2 relate to the first embodiment, and FIG. 1 is a cross-sectional view showing a mounting structure for a vehicle seat. It is a principal part expanded sectional view which shows the attachment structure of the vehicle seat. It is sectional drawing which shows the attachment structure of the vehicle seat which concerns on 2nd Embodiment. It is sectional drawing which shows the attachment structure of the vehicle seat which concerns on 3rd Embodiment.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[First Embodiment]
1 and 2, the vehicle seat mounting structure S <b> 1 according to this embodiment includes a floor panel 10, a mounting bracket 14, a reinforcing portion 16, and a column member 18. The vehicle seat 12 is a front seat, for example.

  The floor panel 10 is provided on the floor 22 of the passenger compartment 20. A tunnel portion 24 extending in the vehicle front-rear direction is provided at the center of the floor portion 22 in the vehicle width direction. A rocker 26 extending in the vehicle front-rear direction is provided outside the floor portion 22 in the vehicle width direction. An end portion 10 </ b> A on the inner side in the vehicle width direction of the floor panel 10 is joined to the vertical wall portion 24 </ b> A of the tunnel portion 24. An end 10 </ b> B on the outer side in the vehicle width direction of the floor panel 10 is joined to the lower surface of the rocker 26.

  The mounting bracket 14 is a member used for mounting the vehicle seat 12 to the floor portion 22. The mounting bracket 14 is provided on the vehicle upper side of the floor panel 10 and constitutes a closed section 30. Specifically, the mounting bracket 14 is joined to the floor panel 10 and the vertical wall portion 24 </ b> A of the tunnel portion 24. Accordingly, the closed section 30 is constituted by the mounting bracket 14, the floor panel 10, and the vertical wall portion 24 </ b> A of the tunnel portion 24.

  The reinforcing portion 16 is provided on the vehicle lower side of the mounting bracket 14 and on the vehicle lower side of the floor panel 10 to form a closed section 32. Specifically, the reinforcing portion 16 is configured by extending both ends of the tunnel portion 24 in the vehicle width direction to the vehicle lower side of the floor panel 10 and joining the lower surface of the floor panel 10. Therefore, the closed section 32 is constituted by the reinforcing portion 16 and the floor panel 10. The reinforcing portion 16 is provided at the center portion in the vehicle width direction of the floor portion 22, specifically, on the right side and the left side across the tunnel portion 24.

  The support member 18 is inserted into the floor panel 10 and is interposed between the mounting bracket 14 and the reinforcing portion 16. The support member 18 is, for example, a metal collar and is hollow. A gap between the column member 18 and the floor panel 10 is closed by welding or a sealant. This is to prevent water from entering the passenger compartment 20 from the gap.

  The attachment bracket 14 is an attachment point of the rear portion of the vehicle seat 12 in the vehicle width direction. Specifically, the rear portion of the seat rail 28 on the inner side in the vehicle width direction is fastened on the mounting bracket 14 using bolts 34. The bolt 34 is screwed to the upper end of the column member 18. A bolt 36 is screwed to the lower end of the support member 18 from the reinforcing portion 16 side, and thereby the support member 18 and the reinforcing portion 16 are fastened.

  On the vehicle upper side of the rocker 26 and the floor panel 10, a mounting bracket 44 on the outer side in the vehicle width direction is provided to constitute a closed section 46. The mounting bracket 44 is an attachment point of the outer portion in the vehicle width direction of the rear portion of the vehicle seat 12. Specifically, the rear portion of the seat rail 29 on the outer side in the vehicle width direction is fastened on the mounting bracket 44 by using bolts 40 and nuts 41.

  A leg portion 38 on the vehicle width direction inner side of the vehicle seat 12 is attached to the seat rail 28, and a leg portion 39 on the vehicle width direction outer side is attached to the seat rail 29. Thereby, the position of the vehicle seat 12 can be adjusted in the vehicle longitudinal direction. The leg portions 38 and 39 of the vehicle seat 12 may be directly attached to the mounting brackets 14 and 44 without the seat rails 28 and 29, respectively.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. Of the attachment points of the vehicle seat 12, the attachment rigidity of the rear portion of the vehicle seat 12 greatly affects the riding comfort performance. However, the attachment point of the rear portion in the vehicle width direction of the rear portion of the vehicle seat 12 may be less rigid than the attachment point of the rear portion in the vehicle width direction. 1 and 2, in the vehicle seat mounting structure S <b> 1 according to the present embodiment, the mounting bracket 14 is the mounting point of the inner portion in the vehicle width direction. A support member 18 is interposed between the mounting bracket 14 and the reinforcing portion 16 on the vehicle lower side of the mounting bracket 14 and on the vehicle lower side of the floor panel 10. Therefore, the mounting rigidity of the vehicle seat 12 is high.

  In addition, since the reinforcing portion 16 is configured by extending both ends of the tunnel portion 24 in the vehicle width direction to the vehicle lower side of the floor panel 10, the mounting rigidity of the vehicle seat 12 is increased without increasing the number of parts. Can be increased. For this reason, the input from the rear part of the vehicle seat 12 can be suppressed, and the riding comfort performance of the vehicle can be improved.

[Second Embodiment]
In FIG. 3, in the vehicle seat mounting structure S <b> 2 according to the present embodiment, the reinforcing portion 16 is provided on the center portion in the vehicle width direction of the floor portion 22, specifically, on the right side and the left side across the tunnel portion 24. The left and right reinforcing portions 16 are connected in the vehicle width direction by a connecting reinforcing member 50. Specifically, the connection reinforcing member 50 is fastened to the left and right reinforcing portions 16 by bolts 36. The connection reinforcing member 50 is, for example, a metal brace.

  An under member 56 is provided on the vehicle width direction outer side of the reinforcing portion 16 on the vehicle lower side of the floor panel 10. The under member 56 is, for example, a cross-sectional hat-shaped reinforcing member extending in the vehicle front-rear direction, and forms a closed cross-section 48 with the floor panel 10. The connecting reinforcing member 50 extends to the outside in the vehicle width direction from the position of the reinforcing portion 16, and is also coupled to the under member 56 by a bolt 42 and a nut 43.

  Since other parts are the same as those in the first embodiment, the same parts are denoted by the same reference numerals in the drawings, and the description thereof is omitted.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In FIG. 3, in the vehicle seat mounting structure S <b> 2 according to this embodiment, the left and right reinforcing portions 16 are connected in the vehicle width direction by the connecting reinforcing member 50, and the connecting reinforcing member 50 is further connected to the under member 56. Therefore, the mounting rigidity of the vehicle seat 12 is further increased. For this reason, the riding comfort performance of the vehicle can be further improved.

[Third Embodiment]
In FIG. 4, in the vehicle seat mounting structure S <b> 3 according to this embodiment, a cross member 52 extending in the vehicle width direction is provided on the vehicle upper side of the floor panel 10. The cross member 52 is a skeleton member made of, for example, metal. The cross member 52 is formed, for example, in a hat shape in cross section, and is joined to the upper surface of the floor panel 10 over almost the entire length. Thereby, the closed cross-section 54 is comprised. In the first embodiment and the second embodiment, the closed cross sections 30 and 32 overlap in the vehicle vertical direction, but in the present embodiment, a closed cross section 54 is added between the closed cross sections 30 and 32. That is, the three closed cross sections 30, 32, and 54 are provided to overlap each other at the attachment point of the rear portion of the vehicle seat 12 in the vehicle width direction.

  Both ends of the cross member 52 are joined to the vertical wall portion 24A of the tunnel portion 24 and the rocker 26, respectively. The mounting bracket 44 on the outer side in the vehicle width direction is also joined to the upper surface of the cross member 52 and the rocker 26.

  An end 10B on the inner side in the vehicle width direction of the floor panel 10 is extended upward of the vehicle as compared with the first and second embodiments, and reaches the side of the mounting bracket 14 on the inner side in the vehicle width direction. The mounting bracket 14 is joined to the upper surface of the cross member 52 and is joined to the vertical wall portion 24A of the tunnel portion 24 and the end portion 10B on the inner side in the vehicle width direction of the floor panel 10 in a stacked manner. Therefore, the closed cross section 30 of the present embodiment is constituted by the mounting bracket 14, the cross member 52, and the floor panel 10.

  The end portion 10B of the floor panel 10 on the inner side in the vehicle width direction is extended upward in the vehicle and joined to the tunnel portion 24 to improve the sealing property between the floor panel 10 and the tunnel portion 24, and the floor portion. This is to prevent water from entering the vehicle compartment 20 from the vehicle 22. In order to further improve the sealing performance, this portion may be further subjected to a sealing treatment.

  The support member 18 is inserted through the floor panel 10 and the cross member 52. The gap between the column member 18 and the floor panel 10 and the gap between the column member 18 and the cross member 52 are respectively closed by welding, a sealing agent, or the like. This is also for preventing water from entering the cabin 20 from the floor 22.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In FIG. 4, in the vehicle seat mounting structure S <b> 3 according to the present embodiment, a cross member 52 is provided on the vehicle upper side of the floor panel 10, and a mounting bracket 14 is provided on the upper surface of the cross member 52. Since the three closed sections 30, 32, and 54 are present at the attachment point of the vehicle width direction inner portion of the rear portion of the vehicle seat 12, the rigidity of the attachment point is improved. Therefore, the mounting rigidity of the vehicle seat 12 is further increased. For this reason, the riding comfort performance of the vehicle can be further improved.

[Other Embodiments]
The reinforcing portion 16 is configured by extending both end portions of the tunnel portion 24 in the vehicle width direction to the vehicle lower side of the floor panel 10, but the reinforcing portion 16 may be a separate member from the tunnel portion 24. Good.

  In the second embodiment and the third embodiment, the connection reinforcing member 50 is connected not only to the reinforcing portion 16 but also to the under member 56. However, the connection reinforcing member 50 simply connects the left and right reinforcing portions 16 to the vehicle. You may connect in the width direction.

  The mounting bracket 14 serves as an attachment point for the rear portion of the vehicle seat 12 in the vehicle width direction. However, the present invention is not limited to this, and the attachment bracket 14 is applied to the attachment point at the front portion of the vehicle seat 12. It is also possible. Further, the vehicle seat 12 is not limited to the front seat but may be a rear seat or the like.

  As mentioned above, although an example of embodiment of this invention was demonstrated, embodiment of this invention is not limited above, In addition to the above, in a range which does not deviate from the main point, it can implement variously. Of course there is.

DESCRIPTION OF SYMBOLS 10 Floor panel 12 Vehicle seat 14 Mounting bracket 16 Reinforcement part 18 Prop member 20 Car compartment 22 Floor part 24 Tunnel part 30 Closed section 32 Closed section 50 Connection reinforcement member 56 Under member S1 Structure of vehicle seat S2 Structure of vehicle seat S3 Structure of vehicle seat

Claims (5)

A floor panel provided on the floor of the passenger compartment;
A tunnel portion joined to the floor panel and formed to protrude upward from the floor panel;
Wherein is joined to the floor panel said floor panel provided on the vehicle upper side of the vertical wall portion of the tunnel portion constitutes a closed cross section, a mounting bracket for use in mounting a vehicle seat to the floor,
A reinforcing portion that is provided on the vehicle lower side of the mounting bracket and on the vehicle lower side of the floor panel and is joined to the floor panel to form a closed cross-section;
A strut member penetrating the floor panel and interposed between the mounting bracket and the reinforcing portion,
A first bolt that is screwed onto the upper end of the support member from the vehicle compartment side and fastens the vehicle seat, the mounting bracket, and the support member;
A second bolt that is screwed into the lower end of the column member from the outside of the passenger compartment and fastens the reinforcing portion and the column member;
A vehicle seat mounting structure including: The reinforcing portion, wherein said center portion in the vehicle width direction of the floor portion both end portions in the vehicle width direction of the tunnel portion extending in the longitudinal direction of the vehicle, and is configured to extend to the vehicle lower side of the floor panel Item 2. A vehicle seat mounting structure according to Item 1. The reinforcing part is provided on each of the right side and the left side across the center part in the vehicle width direction of the floor part,
The vehicle seat mounting structure according to claim 1, wherein the left and right reinforcing portions are connected in the vehicle width direction by a connecting reinforcing member.   The vehicle seat mounting structure according to claim 3, wherein the connection reinforcing member is also coupled to an under member provided on the vehicle width direction outer side of the reinforcing portion on the vehicle lower side of the floor panel.   The mounting structure for a vehicle seat according to any one of claims 1 to 4, wherein the mounting bracket is an attachment point of an inner portion in a vehicle width direction of a rear portion of the vehicle seat.

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