JP2001097096A - Seat reinforcement structure of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a seat pan hard to be deformed so as to shrink a width dimension of the seat pan of a seat by an impact force at the time of side collision of automobile and to retain a comfortability to seat against a seat cushion body well in such the state. SOLUTION: A seat cushion 15 of a seat 14 disposed on a floor panel 3 of a car body 1 is provided with a seat pan 25 constituting a lower portion and supported to the floor panel 3; and a seat cushion body 26 placed and supported on this seat pan. A third bonding member 46 which extends in a width direction of the car body and of which respective ends are bonded to respective side end portions of the seat pan 25 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat reinforcing structure for reinforcing a floor panel provided on a vehicle body floor panel.

[0002]

2. Description of the Related Art Conventionally, automobiles have been disclosed in Japanese Utility Model Laid-Open No. 4-10884.
There is one disclosed in Japanese Patent Publication No. 33.

According to the above publication, the vehicle body includes left and right side walls, and a floor panel disposed between the lower ends of the left and right side walls and supported by the lower ends of the side walls. A seat is provided on the floor panel.

In the above configuration, conventionally, a seat cushion of a seat constitutes a lower portion and is provided with a seat pan supported by the floor panel and a seat cushion main body mounted and supported on the seat pan. There is something.

[0005]

Incidentally, since the above-mentioned seat pan is usually made of a thin sheet metal, it is not easy to keep the seat pan with sufficient strength.

Therefore, in the event of a side collision in which an object collides with the side of the vehicle body from the outside, an impact force is applied to the seat pan of the seat in the width direction of the vehicle body through the side wall and the floor panel. However, there is a possibility that the above-mentioned dimension in the width direction may be deformed to be reduced.

Therefore, it is conceivable to provide a reinforcing member for reinforcing the seat pan, but in this case, the following problem may occur. That is, in order to increase the thickness of the seat cushion body and improve the elastic sitting comfort, the middle part of the seat pan may be bulged downward in plan view. The space between the bottom of the seat pan and the floor panel below it tends to be narrow.

Therefore, when the reinforcing member is provided, the amount of swelling of the bottom of the seat pan is suppressed by the installation space, and the thickness of the seat cushion body is reduced accordingly. There is a possibility that the above-mentioned sitting comfort may be reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and the seat pan can be easily formed such that the width of the seat pan is reduced by an impact force at the time of a side collision of an automobile. The object is to prevent deformation.

Another object of the present invention is to maintain good sitting comfort with respect to the seat cushion body even in the case described above.

[0011]

The vehicle seat reinforcing structure of the present invention for solving the above-mentioned problems is as follows.

According to the first aspect of the present invention, a seat cushion 15 of a seat 14 disposed on a floor panel 3 of a vehicle body 1 is provided.
However, in a vehicle seat including a seat pan 25 that constitutes a lower portion thereof and is supported by the floor panel 3 and a seat cushion body 26 that is placed and supported on the seat pan 25,

A third coupling member (coupling member) 46 is provided which extends in the width direction of the vehicle body 1 and whose end is coupled to each side end of the seat pan 25.

According to a second aspect of the present invention, in addition to the first aspect, a bottom portion 25a of the middle portion of the seat pan 25 in a plan view is provided.
Is bulged downward, and the third coupling member (coupling member) 46 is disposed below the seat pan 25,
The third coupling member (coupling member) with respect to the bottom 25a.
46 is deviated to either the front or the rear direction.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 denotes a sheet-metal body of an automobile, and an arrow Fr indicates the front of the automobile. The left and right described below refer to the width direction of the vehicle body 1 facing forward (hereinafter, simply referred to as “width direction”).

The vehicle body 1 includes left and right side walls 2 and 2 and a floor panel 3 disposed between the lower ends of the left and right side walls 2 and 2 and supported by the lower ends of the side walls 2. ing. In this case, the “widthwise” end of the floor panel 3 is joined to and supported by the lower end of each side wall 2 by spot welding S. The space inside the vehicle body 1 surrounded by the side walls 2 and 2 and the floor panel 3 is a vehicle compartment 4.

Each of the side walls 2 has an outer panel 6 and an inner panel 7 which face each other in the "width direction" and are connected to each other.
And Further, the floor panel 3 forms general portions 9 and 9 forming left and right side portions thereof and a substantially central portion which is an intermediate portion in the “width direction” of the floor panel 3 and bulges upward. And a tunnel portion 10 extending forward and backward. Each of the general sections 9 and the tunnel section 10 are integrally formed with each other, and the tunnel section 10 has an inverted U-shaped cross section to enhance strength and rigidity. The vehicle body 1 is substantially bilaterally symmetrical with respect to a vertical central imaginary plane 11 passing substantially the center in the “width direction”.

The automobile includes a seat device 13 provided in the passenger compartment 4, and the seat device 13 is disposed on the floor panel 3 and supported by the floor panel 3 in a plurality of “widthwise” seats. 14, and the sheets 14, 14 are arranged in the “width direction” in the tunnel section 10.
It is arranged on each outer side.

Each of the seats 14 is configured so that a seated person can be seated from the front thereof. The seat 14 is disposed above the general portion 9 of the floor panel 3 so that a seated person can be seated from the front thereof. Possible seat cushion 15
And a pair of left and right front and rear legs 16, 17 extending vertically below the seat cushion 15 and supporting the seat cushion 15 on the floor panel 3.
A seat back 18 protruding upward from a rear end of the seat cushion 15 so that a seated person sitting on the seat cushion 15 can rest on the seat cushion 15; , 17 are interposed between the upper end of the seat cushion 15 and the seat back 18 so as to be movable back and forth with respect to the floor panel 3 and each of the legs 16, 17 and to be freely detachable at a desired arbitrary position. And a slide rail means 19 for causing the slide rails to move.

A seat belt device 21 is provided to enable a seated person sitting on each seat 14 to be restrained on each seat 14. The seatbelt device 21 includes a seatbelt anchor 22 attached to a rear end portion of an inner portion 15a of a seat cushion 15 of each seat 14 facing each other in the "width direction"; The seat belt 23 extends from the knee and has an extended end portion which is removably engaged with the seat belt anchor 22 so as to restrain a seated person.

The seat cushion 15 constitutes a lower portion of the seat panel 15 and the floor panel 3 is provided through the legs 16 and 17.
Sheet metal seat pan 2 supported by
5 and a seat cushion main body 26 that is fitted inside the seat pan 25 and placed on the upper surface thereof and supported by the seat pan 25. In a plan view, the bottom 25a of the intermediate portion of the seat pan 25 is bulged downward so as to be substantially spherical, and the thickness of the seat cushion main body 26 fitted inside the seat pan 25 is thus reduced. Are increased, and the elastic sitting comfort is improved.

Of the legs 16 and 17 of each seat 14, before and after supporting the inner portion 15 a of the seat cushion 15, the lower ends of the legs 16 and 17 are fastened by fasteners 28 on each side of the tunnel 10. Before and after supporting the outer portion 15b of the seat cushion 15 opposite to the inner portion 15a in the "width direction", the rear legs 16,
The lower ends 17 are fixed to the outer ends of the general portions 9 of the floor panel 3 by fasteners 29 and are supported by the floor panel 3.

The slide rail means 19 includes a pair of left and right fixed rails 30 supported on the upper ends of the legs 16 and 17 and extending in the front-rear direction, and moves back and forth on the fixed rails 30 and 30 respectively. A movable rail 31 which is supported so as to be freely movable and is detachably locked at a desired arbitrary position, and a bracket 32 is provided on each of the movable rails 31; Each side end of the seat pan 25 is fastened and supported by a fastener 34.

A first connecting member 36 is provided for connecting the inner panel 7 on each of the left and right side walls 2 and the sheet 14 adjacent to the respective side walls 2 in the "width direction". here,
Of the legs 16, 17 of each seat 14 supporting the outer portion 15b of the seat cushion 15, the rear leg 1
7 is divided into upper and lower leg portions 37 and 38, and the divided ends are fastened to each other by fasteners 39. And
The first connecting member 36 includes a sheet metal connecting member main body 40 integrally formed with the lower leg portion 38, and an end of the connecting member main body 40 on the outer side of the vehicle body 1. 7 and a fastener 41 to be connected by fastening. That is, the first coupling member 36 is connected to the side wall 2.
And between the legs 16 and 17 of the seat 14, the legs 17 adjacent to the side wall 2 on the rear side.

Sheets 1 adjacent to each other in the "width direction"
A second coupling member 43 that couples the fourth and fourth members 14 is provided. The second coupling member 43 is connected to the tunnel 10
16 and 17 that support the inner portion 15a of the seat cushion 15 of each of the left and right seats 14 at a position separated from above
Of these, a connecting member main body 44 made of sheet metal disposed between the rear left and right legs 17, 17 and a fastener 45 for connecting each end of the connecting member main body 44 to the leg 17 by fastening. Have. In this case, the second coupling member 43
Are connected to the upper portions of the legs 17 in the vicinity of the slide rail means 19 in the vertical direction.

In the vicinity of the seat 14 below the seat cushion 15, there is provided a third connecting member 46 which extends in the “width direction” and whose end is connected to each side end of the seat cushion main body 26. Have been. This third
The connecting member 46 includes a pair of left and right metal brackets 47, 47 which are fastened together to the seat pan 25 by fasteners 34 for fastening the brackets 32 of the slide rail means 19 to the seat pan 25, and these brackets 47, 47.
And a connecting member body 48 made of a circular metal pipe supported by welding and extending in the “width direction”. That is, the third connecting member 46 is provided on the left and right side ends of the seat pan 25 of the seat cushion 15. Are connected to each other to reinforce the seat pan 25.

The third connecting member 46 is deviated behind the central portion (lowest portion) of the bottom portion 25a of the seat pan 25. Further, when viewed from the line of sight of the vehicle body 1 in the front-rear direction, the bottom portion 25a and the middle portion in the longitudinal direction (“width direction”) of the coupling member main body 48 of the third coupling member 46 are overlapped, so that the seat The pan 25 and the third coupling member 46 are arranged compactly in the vertical direction.

In the above case, the first to third coupling members 36, 4
The reference numerals 3 and 46 are located at substantially the same positions in the front-rear direction and the vertical direction of the vehicle body 1, respectively. The first to third coupling members 36, 43, 46 are located near the rear of the seat cushion 15 of the seat 14 together with the seat belt anchor 22 in the front-rear direction of the vehicle body 1.

According to the above configuration, the first connecting member 36 for connecting the side walls 2 and 2 and the sheet 14 adjacent to each side wall 2 is provided, and the sheets 14 adjacent to each other in the "width direction" are provided. Connecting member 4 for connecting the members 14 and 14 to each other
3 and the first and second coupling members 36 and 43 are attached to the vehicle body 1.
Are located at substantially the same position in the front-rear direction.

For this reason, the side walls 2, 2, the tunnel portion 10, the adjacent sheets 14, 14, the first connecting member 36, and the second connecting member 43 cooperate with each other to form the vehicle body 1
When the impact force is applied to one side wall 2 of the vehicle body 1 at the time of a side collision of the vehicle, the impact force is prevented from being concentrated only on the one side wall 2 because Each of the sheets 14, 14 and the first and second sheets
It is transmitted so as to be distributed to the coupling members 36 and 43, and the vehicle body 1
The energy based on the impact force is absorbed in each part in the “width direction” of the above.

Therefore, the impact force is prevented from being concentrated on only one side wall 2 and the side wall 2 is largely deformed, and at the same time, the impact force is reduced at each portion of the vehicle body 1 in the "width direction". Therefore, the influence of the impact force on the seat 14 adjacent to the one side wall 2 to the occupant can be reduced.

Further, as described above, each sheet 14 is
A seat cushion 15 disposed above the floor panel 3 to allow a seated person to sit on the floor panel 3, and a leg 17 for supporting the seat cushion 15 on the floor panel 3; 2 and the legs 17 of the sheet 14 are connected.

For this reason, a large load is applied to the leg 17 of the seat 14 from the occupant's side. However, since the leg 17 is reinforced by the first coupling member 36, when the vehicle collides, Sheet 1 above
Even if an impact force is applied to the floor 4, each leg 17 is prevented from being easily deformed, so that the seated person is firmly supported by the floor panel 3 via the seat 14.

Since the first connecting member 36 is connected to the leg 17 of the seat 14 on which the occupant sits below the seat cushion 15, the first connecting member 36 is larger than the seat cushion 15. As a result, even if the first coupling member 36 is provided, the first coupling member 36 is prevented from obstructing the seating operation of the occupant on the seat 14.

Therefore, it is possible to prevent the smooth operation of the seat 14 from being seated, detached from the seat 14 or operated in the seated state by the first coupling member 36.

As described above, the second connecting member 43 is connected to the legs 17, 17 of the adjacent sheets 14, 14, respectively.
17 are connected to each other.

For this reason, in the seat 14, the legs 17 to which a large load is applied from the occupant side are more reliably reinforced by the second connecting members 43, and the occupant can be connected to the floor panel 3 via the seat 14. Is more strongly supported.

Since the second connecting member 43 is connected to the leg 17 of the seat 14 on which the occupant sits below the seat cushion 15, the second connecting member 43 is larger than the seat cushion 15. As a result, even if the second coupling member 43 is provided, it is possible to prevent the second coupling member 43 from obstructing the seat 14 from sitting on the seat 14.

Therefore, it is possible to prevent the smooth operation of the seat 14 from being seated, detached from the seat 14 or operated in a seated state by the second coupling member 43.

Further, each of the seats 14 can be seated from the front thereof, while the first and second connecting members 36 and 43 are located below the rear portion of the seat cushion 15 in a side view of the seat 14. Since the first and second coupling members 36 and 43 are positioned, it is more reliably prevented that the first and second coupling members 36 and 43 obstruct a seating operation of the occupant on the seat 14.

As described above, the seat cushion 1 of the seat 14 disposed on the floor panel 3 of the vehicle body 1
5 includes a seat pan 25 that constitutes a lower portion thereof and is supported by the floor panel 3, and a seat cushion body 26 that is mounted and supported on the seat pan 25. A third connecting member 46 is provided which extends in the width direction and whose end is connected to each side end of the seat pan 25.

Therefore, when an impact force is applied to the seat 14 at the time of a side collision of the vehicle, the seat pan 25 of the seat cushion 15 of the seat 14 is deformed to contract in the "width direction". By the third coupling member 46, the impact is more reliably prevented, and the impact of the impact force on the seat 14 to the occupant can be reduced.

Since the third connecting member 46 is disposed below the seat cushion 15 of the seat 14 on which the occupant sits, even if the third connecting member 46 is provided, the third connecting member 46 is It is possible to prevent the user from interfering with the seating operation.

Therefore, it is possible to prevent the smooth operation of the seat 14 from being seated on and off from the seat 14 or to be operated in the seated state.

Further, as described above, the connecting member main body 48 of the third connecting member 46 is deviated behind the bottom 25a of the seat pan 25.

Therefore, the bottom 25 of the seat pan 25
a can largely swell downward without being interfered by the third coupling member 46.

Therefore, even when the deformation of the seat pan 25 is prevented by the third connecting member 46 as described above, the swelling amount of the bottom 25a of the seat pan 25 can be made sufficiently large, and accordingly, The desired thickness can be ensured in the seat cushion main body 26 supported by the seat pan 25, and the sitting comfort against the desired thickness can be kept good.

In the above case, since the third connecting member 46 is deviated behind the bottom 25a of the seat pan 25, the third connecting member 46 is
Is prevented from hindering the legs of the occupant sitting on the vehicle, and also in this regard, the sitting comfort of the seat cushion 15 on the seat cushion main body 26 is well maintained.

The first to third coupling members 36, 4
The reference numerals 3 and 46 are located at substantially the same position in the front-rear direction and the vertical direction of the vehicle body 1.

For this reason, the third connecting member 46 is formed by the side walls 2, the tunnel section 10, the sheets 14, the first and second
Since it works like a stronger cross member in the vehicle body 1 in cooperation with the coupling members 36 and 43, the effect of preventing the deformation of the side wall 2 and each of the legs 17, 17 and the effect of reducing the impact force are further improved. It is assured.

Although the above description is based on the example shown in FIG.
The coupling member 46 may be displaced forward of the bottom 25 a of the seat pan 25.

[0053]

The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided a seat pan, wherein a seat cushion of a seat disposed on a floor panel of a vehicle body constitutes a lower portion thereof and is supported by the floor panel;
In an automobile seat including a seat cushion main body mounted and supported on the seat pan,

A connecting member is provided which extends in the width direction of the vehicle body and each end of which is connected to each side end of the seat pan.

Therefore, when the impact force at the time of a side collision of the automobile is applied to the seat, the width of the seat pan in the "width direction" of the vehicle body is reduced so as to be reduced. As a result, the seat is more reliably prevented, and the impact of the impact force on the seat to the occupant can be reduced.

According to a second aspect of the present invention, the bottom of the intermediate portion of the seat pan is swelled downward in a plan view, and the connecting member is disposed below the seat pan.

Therefore, even if the connecting member is provided, it is possible to prevent the connecting member from obstructing the seating operation of the seated person on the seat.

The connecting member is displaced forward or backward with respect to the bottom of the seat pan.

For this reason, the bottom of the seat pan can be greatly bulged downward without being interfered by the connecting member.

Therefore, even if the deformation of the seat pan is prevented by the connecting member as described above, the swelling amount of the bottom of the seat pan can be made sufficiently large, and the seat pan is supported by the seat pan accordingly. The desired thickness can be ensured in the seat cushion main body, and the sitting comfort against the desired thickness can be kept good.

[Brief description of the drawings]

FIG. 1 is a rear view of a seat device.

FIG. 2 is a side view of the seat device.

FIG. 3 is a plan view of the seat device.

FIG. 4 is a partially enlarged view of FIG. 1;

FIG. 5 is a sectional view taken along line 5-5 in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 3 Floor panel 4 Cab 13 Seat device 14 Seat 15 Seat cushion 25 Seat pan 25a Bottom 26 Seat cushion main body 46 Third connecting member (connecting member) 47 Bracket 48 Connecting member main body

Claims (2)

[Claims] 1. A seat cushion for a seat disposed on a floor panel of a vehicle body, a seat pan constituting a lower portion thereof and supported by the floor panel, and mounted and supported on the seat pan. A seat reinforcement structure for an automobile, comprising: a seat cushion body; and a connecting member extending in a width direction of the vehicle body and each end of which is connected to each side end of the seat pan. 2. A plan view in which a bottom portion of an intermediate portion of the seat pan is swelled downward, and the connecting member is disposed below the seat pan, and the connecting member is positioned forward with respect to the bottom portion. The vehicle seat reinforcing structure according to claim 1, wherein the vehicle seat reinforcing structure is displaced in any one of a rearward direction and a rearward direction.