JP2001097098A - Seat support device of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a leg of seat hard to be deformed at the time of side collision of automobile and to strongly support a person seated on the seat. SOLUTION: A car body 1 is provided with a pair of right and left side walls 2, 2 and a floor panel 3 disposed between respective lower end portions of these right and left side walls 2, 2 and supported to the respective lower end portions of these respective side walls 2, 2. A seat 14 is disposed on the floor panel 3. The seat 14 is provided with a seat cushion 15 which is disposed above the floor panel 3 and on which a person seated can be seated; and a leg 17 for supporting the seat cushion 15 to the floor panel 3. A support member 36 extending to a width direction of the car body 1 is provided between the floor panel 3 and the leg 17. The leg 17 is supported on the floor panel 3 through this support member 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat supporting device disposed on a floor panel of a vehicle body of an automobile.

[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.

[0004] The seat includes a seat cushion disposed above the floor panel so that a seated person can be seated thereon, and a leg for supporting the seat cushion on the floor panel.

[0005]

By the way, the leg of the seat is vertically long, and the strength of the leg to external force in the width direction of the vehicle body is generally lower than the strength to external force in the front-rear direction. It is.

[0006] Therefore, particularly in the event of a side collision in which an object collides against the side of the vehicle body from the outside, the impact force due to the collision acts on the leg of the seat, and the leg may be easily deformed. is there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a seat occupant is firmly supported on a seat so that a leg of the seat is not easily deformed in a side collision of an automobile. The task is to make it work.

[0008]

A vehicle seat supporting apparatus according to the present invention for solving the above-mentioned problems is as follows.

According to a first aspect of the present invention, the vehicle body 1 is disposed between the left and right side walls 2 and 2 and the lower ends of the left and right side walls 2 and 2 and provided at the lower end of each of the side walls 2 and 2. A seat cushion 15 provided on the floor panel 3, the seat 14 being disposed above the floor panel 3 so that a seated person can sit on the seat 14. And a leg 17 for supporting the seat cushion 15 on the floor panel 3.

A supporting member 36 extending in the width direction of the vehicle body 1 is interposed between the floor panel 3 and the leg 17, and the leg 17 is supported on the floor panel 3 via the supporting member 36. .

According to a second aspect of the present invention, in addition to the first aspect of the present invention, the support member 36 has a box-shaped closed cross-sectional structure in a side view of the vehicle body 1.

The invention according to claim 3 is the invention according to claim 1 or 2
In addition, the seat 14 is disposed adjacent to the one side wall 2 in the width direction of the vehicle body 1, and the end of the support member 36 on the one side wall 2 side is connected to the one side wall 2. Things.

[0013]

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 has 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 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 vehicle compartment 4. The seat device 13 is disposed on the floor panel 3 and is 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.

The seats 14 are arranged so that a seated person can be seated from the front thereof. The seats 14 are arranged above the general portion 9 of the floor panel 3 so that the seated person can be seated from the front. Possible seat cushion 15
A pair of left and right front and rear legs 16 and 17 extending vertically below the seat cushion 15 and supporting the seat cushion 15 on the floor panel 3;
A seat back 18 projecting 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, and the seat cushion 15 and the legs 16, 17 in the vertical direction. The seat cushion 15 and the seat back 18 are interposed between the floor panel 3 and each of the legs 1.
A slide rail means 19 is provided which is movable back and forth with respect to 6, 17 so as to be engaged and disengageable at any desired position.

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 thereof and is made of sheet metal having a function as a seat frame, and a seat cushion body which is fitted in the seat pan 25 and supported by the seat pan 25. 2
The bottom portion 25a of the seat pan 25 is bulged downward so as to have a spherical shape in order to increase the thickness of the seat cushion main body 26 and improve elastic sitting comfort. .

Of the legs 16 and 17 of each of the seats 14, before and after supporting the inner portion 15a of the seat cushion 15, the lower ends of the legs 16 and 17 are respectively connected to the respective sides of the tunnel portion 10 by fasteners 28. 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. 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.

The outer portion 15b of the seat cushion 15
A support member 36 made of sheet metal is interposed between the rear leg 17 and the floor panel 3 among the legs 16 and 17 of each of the sheets 14 for supporting the sheet 14, and the leg 17 is connected to the floor panel via the support member 36. 3 supported on.

The support member 36 is interposed between the leg 17 and the base member 37 and a base member 37 fixed below the leg 17 on the floor panel 3 by spot welding S as a fixing tool. And a support member main body 40 fixed to the base member 37 by a fastener 38 as a fastener. The support member main body 40 has a substantially inverted U-shape when viewed from the side of the vehicle body 1 (FIGS. 2 and 5), and a front plate 40a and a rear plate 40b that extend in the vertical direction facing front and rear, and
And an upper plate 40c for integrally connecting the upper edges of the plates 40a and 40b. The lower end of the leg 17 is attached to the upper plate 40c of the support member body 40 by the fastener 29.
It is fixed by.

The support member 36 extends longer in the "width direction" than its front and rear widths. Further, in a side view of the vehicle body 1 (FIGS. 2 and 5), the support member 36 has a box-shaped closed cross-sectional structure by cooperation of a base member 37 and a support member main body 40.

In the “width direction”, the end of the support member 36 on the side wall 2 side of the support member body 40 is
The support member main body 40 is fixed to the inner panel 7 of the side wall 2 by a fastener 41. As a result, the lower end of the leg 17 is joined across the side wall 2 of the vehicle body 1 and the floor panel 3, and the leg 17 is sufficiently reinforced.

The front plate 40 of the support member body 40
A plurality of beats # 42 are formed in the "a" and the rear plate 40b in the "width direction", and each of the beats # 42 has a shape extending vertically upward and downward.

Sheets 1 adjacent to each other in the "width direction"
A first connecting member 43 for connecting the first and fourth members 14 is provided. The first 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 first 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 lower side of each seat 14 below the seat cushion 15, a second connecting member 46 extending in the "width direction" and connecting the left and right side end portions of the seat 14 is provided. . This second coupling member 46
A pair of left and right brackets 47, 4 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.
7 and a connecting member body 4 made of a circular pipe supported in the brackets 47 and 47 by welding and extending in the “width direction”.
In other words, the second connecting member 46 reinforces the seat pan 25 by connecting the left and right side ends of the seat pan 25 of the seat cushion 15 to each other.

In the above case, the support member 36 and the first and second
The coupling members 43 and 46 are located at substantially the same position in the front-rear direction and the vertical direction of the vehicle body 1, respectively. Further, the support member 36 and the first and second coupling members 43 and 46 are attached to 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.
Is located near the rear.

According to the above configuration, the support member 3 extending in the “width direction” of the vehicle body 1 between the floor panel 3 and the leg 17
6, the legs 17 are supported on the floor panel 3 via the support members 36.

For this reason, if the height of the upper surface of the seat cushion 15 with respect to the floor panel 3 is maintained at a predetermined height, the support member 36 is interposed between the floor panel 3 and the legs 17 as described above. The length of the leg 17 can be reduced.

Further, in this case, the support member 36 is
In the "width direction", and the strength against external force in the "width direction" is large.

Therefore, as described above, the leg 17 is shortened to increase its strength and rigidity, and is firmly supported by the floor panel 3 by the above-mentioned supporting member 36 having high strength. When the impact force at the time acts on the leg 17 of the seat 14 in the “width direction”,
The leg 17 is reliably prevented from being easily deformed, and the occupant is firmly supported on the seat 14.

Further, as described above, the support member 36 has a box-shaped closed sectional structure when the vehicle body 1 is viewed from the side.

For this reason, the support member 36 has a sufficiently high strength and rigidity as a whole with respect to the external force in the “width direction”, so that the leg 17 is correspondingly supported by the floor member 3 by the support member 36. , And the deformation of the leg 17 due to the impact force is more reliably prevented.

Further, as described above, the sheet 14 is disposed so as to be adjacent to the one side wall 2 in the “width direction”, and the end of the support member 36 on the one side wall 2 side is attached to the one side wall 2. It has been combined.

For this reason, since the support member 36 is fixed across the side wall 2 and the floor panel 3 which are arranged substantially orthogonal to each other, the strength of the support member 36 against the external force in the "width direction" is secured. And the rigidity is further increased sufficiently, so that the leg 17 is more firmly supported by the support member 36 with respect to the side wall 2 and the floor panel 3, and the deformation of the leg 17 due to the impact force is more reliably performed. Is prevented.

As described above, the support member body 40
A plurality of beats # 42 extending long in the vertical direction are formed in the "width direction" of the vehicle body 1;
The support member body 40 of No. 6 has sufficient strength and rigidity even in the vertical external force, and thus the leg 17 is firmly supported on the floor panel 3 by the support member 36.

As described above, one end of the support member 36 in the “width direction” of the support member main body 40 is connected to the base member 3.
7, is fixed to the floor panel 3 by the spot welding S and the fixing tool 38, and supports the leg 17; Fastening fastener 4 extending to two sides
1 is fixed to the side wall 2. Moreover, as described above, the support member main body 40 is provided with a beat # 4 extending long vertically.
2 are molded in the "width direction".

For this reason, in the event of a side collision of the vehicle, the middle part of the support member 36 in the "width direction" of the vehicle body 1 is easily plastically deformed due to the presence of the beat # 42, thereby causing a collision. Energy based on the impact force at the time is absorbed, and the impact force is reduced.

Therefore, the deformation of the leg 17 can be prevented more reliably because the impact force acting on the leg 17 is reduced.

As described above, the first coupling 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 first coupling members 43, so that the occupant is more firmly supported on the seat 14. Is done.

Each of the seats 14 can be seated from the front, while the support member 36 and the first coupling member 43 are located below the rear of the seat cushion 15 in a side view of the seat 14. Because of this, the support member 36 and the first coupling member 43 are more reliably prevented from obstructing the seat 14 from sitting on the seat 14.

As described above, below the seat cushion 15 of each seat 14, the second connecting member 46 for connecting the left and right sides of the seat 14 to each other is provided.

Therefore, when the impact force at the time of the side collision of the vehicle is applied to the seat 14, the seat cushion 15 and the like of the seat 14 are deformed so as to be reduced in the "width direction". The member 46 is more reliably prevented, and the impact of the impact force on the seat 14 to the occupant can be reduced.

Although the above description is based on the illustrated example, in addition to or instead of the above configuration, the support member 36 and the first and second coupling members 43 and 46 are attached to the front left and right legs 16 and 16. May be applied, and these 36, 43, and 46 may be located near the front of the seat cushion 15 in the seat 14 in the front-rear direction of the vehicle body 1.

[0049]

The effects of the present invention are as follows.

According to the first aspect of the present invention, the vehicle body comprises left and right side walls,
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 disposed on the floor panel. A seat cushion disposed above the seat cushion and allowing a seated person to sit thereon, and a leg for supporting the seat cushion on the floor panel.

A support member extending in the "width direction" of the vehicle body is interposed between the floor panel and the leg, and the leg is supported on the floor panel via the support member.

For this reason, if the height of the upper surface of the seat cushion with respect to the floor panel is maintained at a predetermined height, the length of the leg is increased by the amount of the support member provided between the floor panel and the leg as described above. Can be shortened.

Further, in this case, the support member extends in the "width direction" of the vehicle body, and the strength against external force in the "width direction" is large.

Therefore, as described above, the leg is shortened to increase its strength and rigidity, and is firmly supported on the floor panel by the above-mentioned strong supporting member. When a force acts on the leg of the seat in the "width direction", the leg is reliably prevented from being easily deformed, and the seated person is firmly supported on the seat.

According to a second aspect of the present invention, the support member has a box-shaped closed cross-sectional structure when viewed from the side of the vehicle body.

For this reason, the support member has a sufficiently large strength and rigidity as a whole with respect to the external force in the “width direction” of the vehicle body, and accordingly, the leg is accordingly moved by the support member to the floor panel. It is more firmly supported, and the deformation of the leg due to the impact force is more reliably prevented.

According to a third aspect of the present invention, in the "width direction" of the vehicle body,
The sheet is disposed adjacent to one side wall, and the end of the support member on the side wall side is connected to the one side wall.

For this reason, since the support member is fixed over the side wall and the floor panel which are arranged substantially orthogonal to each other, the strength and rigidity of the support member against the external force in the “width direction” is further increased. The leg is made sufficiently large, so that the leg is more firmly supported on the side wall and the floor panel by the support member, and the deformation of the leg due to the impact force is more reliably prevented.

[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 2 Side wall 3 Floor panel 4 Cabin 13 Seat device 14 Seat 15 Seat cushion 15a Inside part 15b Outside part 16, 17 Leg 18 Seat back 19 Slide rail means 36 Support member 37 Base member 38 Fixing tool 40 Support member main body 40a Front Face plate 40b Rear plate 40c Top plate 41 Fastener 42 Beat

Claims (3)

[Claims] 1. A vehicle body comprising: left and right side walls; and a floor panel disposed between lower ends of the left and right side walls and supported by lower ends of the side walls. Wherein the seat is disposed above the floor panel, and a seat cushion is provided to allow a seated person to sit on the seat, and a leg that supports the seat cushion on the floor panel. An automobile seat support device comprising a support member extending in the width direction of a vehicle body interposed between a floor panel and a leg, and the leg supported on the floor panel via the support member. 2. The vehicle seat support device according to claim 1, wherein the support member has a box-shaped closed cross section when viewed from the side of the vehicle body. 3. The vehicle according to claim 1, wherein the seat is disposed adjacent to one side wall in a width direction of the vehicle body, and an end of the support member on the one side wall side is connected to the one side wall. An automotive seat support device as described in the above.