JP3621309B2 - Car seat reinforcement structure - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a vehicle seat reinforcing structure in which a floor panel disposed on a floor panel of a vehicle body is reinforced.
[0002]
[Prior art]
Conventionally, there is an automobile disclosed in Japanese Utility Model Publication No. 4-108433.
[0003]
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 sheet is disposed on the top.
[0004]
In the above configuration, there is a conventional seat cushion that includes a seat pan that constitutes a lower portion thereof and is supported by the floor panel, and a seat cushion body that is placed and supported on the seat pan. .
[0005]
[Problems to be solved by the invention]
By the way, since the sheet pan is usually made of a thin sheet metal, it is not easy to hold the sheet pan with sufficient strength.
[0006]
For this reason, in the case of a side collision when an object collides with the side of the vehicle body from the outside, the seat pan of the seat is given an impact force in the width direction of the vehicle body through the side wall and the floor panel, and the width There is a possibility that the dimension of the direction is deformed to be reduced.
[0007]
Therefore, it is conceivable to provide a reinforcing member that reinforces the seat pan. 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 intermediate portion of the seat pan may bulge downward in a plan view. The space between the bottom of the seat pan and the floor panel below it tends to be narrow.
[0008]
For this reason, if it is going to provide the above-mentioned reinforcement member, the amount of bulging of the bottom part of the above-mentioned seat pan will be controlled by the installation space, and the thickness of the above-mentioned seat cushion body will be reduced by that much, and the above-mentioned sitting It may cause a decrease in comfort.
[0009]
The present invention has been made paying attention to the above situation, and the seat pan is not easily deformed so that the width of the seat pan of the seat is reduced by the impact force at the time of a side collision of the automobile. The challenge is to do so.
[0010]
Moreover, even if it does as mentioned above, it makes it a subject to keep the seating comfort with respect to a seat cushion main body favorable.
[0011]
[Means for Solving the Problems]
The vehicle seat reinforcement structure of the present invention for solving the above-described problems is as follows.
[0012]
According to the first aspect of the present invention, the floor panel 3 of the vehicle body 1 includes a tunnel portion 10 that constitutes a substantially central portion in the width direction of the vehicle body 1 and extends in the front-rear direction, on the floor panel 3 and the tunnel portion 10. The seat 14 is disposed on the outer side of the seat cushion 15, and the seat 14 supports a seat cushion 15 on which the seated person can sit, and the floor panel 3 supports the outer portions 15 a and 15 b of the seat cushion 15. A pair of legs 16, 17 and slide rail means 19, 19 interposed between the seat cushion 15 and the upper ends of the legs 16, 17 in the vertical direction to allow the seat cushion 15 to move back and forth. includes a seat cushion 15 of the seat 14, the seat pan 25 which is supported on the floor panel 3 constituting the bottom, the seat pan 25 In automobile seat with a seat cushion main body 26 which is supported by being placed on,
[0013]
A third coupling member (coupling member) 46 that extends in the width direction of the vehicle body 1 and whose end portions are coupled to respective side end portions of the seat pan 25 is provided , and the seat cushion of the legs 16 and 17 is provided . Legs 16 and 17 that support inner part 15a of 15 are supported by tunnel 10 and the third coupling member (coupling member) 46 is positioned at the installation position of both slide rail means 19 and 19 in the vertical direction . Is.
[0014]
According to a second aspect of the present invention, in addition to the first aspect of the invention, the bottom portion 25a of the intermediate portion of the seat pan 25 bulges downward in a plan view, and the third coupling member is disposed below the seat pan 25. (Coupling member) 46 is disposed, and the third coupling member (coupling member) 46 is displaced in either the front or rear direction with respect to the bottom portion 25a.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
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 refers to the width direction of the vehicle body 1 facing forward (hereinafter simply referred to as “width direction”).
[0017]
The vehicle body 1 includes left and right side walls 2, 2 and a floor panel 3 that is disposed between the lower ends of the left and right side walls 2, 2 and supported by the lower ends of the side walls 2. In this case, the “width direction” end of the floor panel 3 is joined to and supported by the lower end of each side wall 2 by spot welding S. A space inside the vehicle body 1 surrounded by the side walls 2 and 2 and the floor panel 3 is a vehicle compartment 4.
[0018]
Each of the side walls 2 includes an outer panel 6 and an inner panel 7 that face each other in the “width direction” and are coupled to each other. Further, the floor panel 3 constitutes general portions 9 and 9 constituting left and right side portions thereof, and a substantially central portion that is a midway portion in the “width direction” of the floor panel 3, and bulges upward. And a tunnel portion 10 extending in the front-rear direction. Each of the general portions 9 and the tunnel portion 10 are integrally formed with each other, and the tunnel portion 10 has an inverted U-shaped cross section to enhance strength and rigidity. The vehicle body 1 is substantially bilaterally symmetric with respect to a vertical central imaginary plane 11 passing through substantially the center in the “width direction”.
[0019]
The automobile includes a seat device 13 provided in the vehicle compartment 4, and the seat device 13 is disposed on the floor panel 3 and is supported by the floor panel 3 in the “width direction”. The sheets 14 and 14 are disposed on the outer sides of the tunnel portion 10 in the “width direction”.
[0020]
Each seat 14 can be seated by a seated person from the front, and the seat 14 is disposed above the general portion 9 of the floor panel 3 so that the seated person can sit from the front. Seat cushion 15, a pair of left and right front and rear legs 16, 17 that extend vertically below the seat cushion 15 to support the seat cushion 15 on the floor panel 3, and a rear end of the seat cushion 15 Between the seat cushion 15 and the upper ends of the legs 16 and 17 in the up-down direction, and a seat back 18 projecting upward from the seat so that a seated person sitting on the seat cushion 15 can be seated on the back. The seat cushion 15 can be moved back and forth with the seat back 18 relative to the floor panel 3 and the legs 16 and 17. One and a slide rail means 19 for engaging detachably locked in any desired position.
[0021]
A seat belt device 21 is provided that allows a seated person sitting on each seat 14 to be restrained on each seat 14. The seat belt device 21 includes a seat belt anchor 22 attached to the rear end portion of the inner portion 15a of the seat cushion 15 of each seat 14 facing each other in the “width direction”, and the outer side of the vehicle body 1 of the seat 14. A seat belt 23 is provided which extends from the sleeve and whose extension end is detachably locked to the seat belt anchor 22 to restrain the seated person.
[0022]
The seat cushion 15 constitutes a lower part thereof, is supported by the floor panel 3 through the legs 16 and 17 and is opened upward, and is fitted into the seat pan 25. A seat cushion body 26 mounted on the upper surface thereof and supported by the seat pan 25. In plan view, the bottom portion 25a of the intermediate portion of the seat pan 25 is bulged downward so as to be substantially spherical, and thus the thickness of the seat cushion body 26 fitted inside the seat pan 25 is increased. Is made larger and the elastic sitting comfort is improved.
[0023]
Among the legs 16 and 17 of each seat 14, before supporting the inner portion 15 a of the seat cushion 15, the rear legs 16 and 17 are firmly attached to the respective side portions of the tunnel portion 10 by fasteners 28 at the lower ends thereof. Are fixed to the floor panel 3 and supported by the floor panel 3. On the other hand, before and after supporting the outer portion 15 b of the seat cushion 15 on the opposite side of the inner portion 15 a in the “width direction”, the rear legs 16 and 17 are respectively The lower end portion thereof is fixed to the outer end portion of each general portion 9 of the floor panel 3 by a fastener 29 and supported by the floor panel 3.
[0024]
The slide rail means 19 is supported by the upper ends of the legs 16 and 17 and extends in the front-rear direction. The pair of left and right fixed rails 30 and 30 and the fixed rails 30 and 30 are movable forward and backward. Movable rails 31 that are supported in such a manner that they are detachably locked at a desired arbitrary position. Brackets 32 project from the movable rails 31, and the seat pan 25 is protruded from the protruding end of the bracket 32. These side end portions are fastened and supported by a fastener 34.
[0025]
A first coupling member 36 for coupling the inner panel 7 of each of the left and right side walls 2 and the sheet 14 adjacent to each side wall 2 in the “width direction” is provided. Here, among the legs 16 and 17 of each seat 14 that supports the outer portion 15b of the seat cushion 15, the rear leg 17 is divided into upper and lower leg portions 37 and 38, and the divided ends are fastened. They are fastened together by means of tools 39. The first coupling member 36 includes a sheet metal coupling member main body 40 integrally formed with the lower leg portion 38, and an end of the coupling member main body 40 on the outer side of the vehicle body 1. A fastener 41 that is coupled to the inner panel 7 by fastening is provided. That is, the first coupling member 36 is coupled to the side wall 2 and the leg 17 adjacent to the side wall 2 on the rear side of the legs 16 and 17 of the seat 14.
[0026]
A second coupling member 43 that couples the sheets 14 adjacent to each other in the “width direction” is provided. The second coupling member 43 is located at a position above the tunnel portion 10, and the rear left and right legs 17, 17 among the legs 16, 17 that support the inner portions 15 a of the seat cushions 15 of the left and right seats 14. A coupling member main body 44 made of sheet metal and a fastener 45 for coupling each end of the coupling member main body 44 to the leg 17 by fastening. In this case, each end portion of the second coupling member 43 is coupled to the upper portion of each leg 17 in the vicinity of the slide rail means 19 in the vertical direction.
[0027]
In the vicinity of the seat cushion 15 in each seat 14, a third coupling member 46 is provided that extends in the “width direction” and whose end portions are coupled to the side end portions of the seat cushion body 26. . The third coupling member 46 includes a pair of left and right metal brackets 47, 47 that are fastened to the seat pan 25 by fasteners 34 that fasten 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 each of the left and right sides of the seat pan 25 of the seat cushion 15. The end portions are joined to each other to reinforce the seat pan 25.
[0028]
The third coupling member 46 is displaced behind the central portion (lowest portion) of the bottom portion 25a of the seat pan 25. Further, as seen from the line of sight of the vehicle body 1 in the front-rear direction, the bottom portion 25a and the middle portion of the coupling member main body 48 of the third coupling member 46 ("width direction") are overlapped, and thus the seat The pan 25 and the third coupling member 46 are compactly arranged in the vertical direction.
[0029]
In the above case, the first to third coupling members 36, 43, 46 are positioned at substantially the same position in the front-rear direction and the vertical direction of the vehicle body 1. The first to third coupling members 36, 43, and 46 are positioned in the vicinity of the rear portion 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.
[0030]
According to the above configuration, the first coupling member 36 that couples the side walls 2 and 2 and the sheet 14 adjacent to each side wall 2 is provided, and the sheets 14 and 14 adjacent to each other in the “width direction” are provided. Is provided, and the first and second coupling members 36 and 43 are located at substantially the same position in the longitudinal direction of the vehicle body 1.
[0031]
Therefore, the side walls 2 and 2, the tunnel portion 10, the adjacent sheets 14 and 14, the first coupling member 36, and the second coupling member 43 cooperate with each other and work like a cross member in the vehicle body 1. When an impact force is applied to one side wall 2 of the vehicle body 1 at the time of a side collision of the automobile, the impact force is prevented from concentrating only on the one side wall 2, and the seats 14, 14 and the first seat Then, the energy is transmitted to the second coupling members 36 and 43 so as to be dispersed, and the energy based on the impact force is absorbed by each part in the “width direction” of the vehicle body 1.
[0032]
Therefore, it is possible to prevent the impact force from concentrating only on one side wall 2 and greatly deforming the side wall 2, and as described above, the impact force is alleviated at each part in the “width direction” of the vehicle body 1. Therefore, the influence of the impact force on the seated person on the seat 14 adjacent to the one side wall 2 can be reduced.
[0033]
Further, as described above, each seat 14 is disposed above the floor panel 3 so that a seated person can sit on it, and a leg 17 that supports the seat cushion 15 on the floor panel 3. The first coupling member 36 couples the side wall 2 and the leg 17 of the seat 14.
[0034]
For this reason, a large load is applied to the leg 17 in the seat 14 from the seated person side. However, since the leg 17 is reinforced by the first coupling member 36, the seat 14 is at the time of an automobile collision. Even if an impact force is applied to the leg 17, the leg 17 is prevented from being easily deformed. Therefore, the seated person is firmly supported by the floor panel 3 through the seat 14.
[0035]
Further, since the first coupling member 36 is coupled to the leg 17 below the seat cushion 15 of the seat 14 on which the seated person sits, the first coupling member 36 is disposed below the seat cushion 15. For this reason, even if the first coupling member 36 is provided, it is prevented that this interferes with the seating operation of the seated person on the seat 14.
[0036]
Therefore, it is possible to prevent the first coupling member 36 from hindering a smooth operation when the seat 14 is seated, separated, or operated in a seated state.
[0037]
Further, as described above, the second coupling member 43 couples the legs 17 and 17 of the adjacent sheets 14 and 14 to each other.
[0038]
Therefore, in the seat 14, the leg 17 to which a large load is applied from the seated person side is more reliably reinforced by the second coupling member 43, so that the seated person further passes through the seat 14 with respect to the floor panel 3. Strongly supported.
[0039]
Further, since the second coupling member 43 is coupled to the leg 17 below the seat cushion 15 of the seat 14 on which the seated person sits, the second coupling member 43 is disposed below the seat cushion 15. For this reason, even if the second coupling member 43 is provided, it is prevented that this interferes with the seating operation of the seated person on the seat 14.
[0040]
Therefore, it is possible to prevent the second coupling member 43 from hindering a smooth operation when the seat 14 is seated, separated, or operated in a seated state.
[0041]
Moreover, each seat 14 can be seated from the front, while the first and second coupling members 36 and 43 are positioned below the rear portion of the seat cushion 15 in a side view of the seat 14. Therefore, the first and second coupling members 36 and 43 are more reliably prevented from interfering with the seating operation of the seated person on the seat 14.
[0042]
Further, as described above, the seat cushion 15 of the seat 14 disposed on the floor panel 3 of the vehicle body 1 constitutes a lower portion thereof and is supported by the floor panel 3, and the seat pan 25 And a seat cushion body 26 that is placed on and supported by the seat cushion body 26. The third coupling extends in the width direction of the vehicle body 1 and has its end portions coupled to the side end portions of the seat pan 25. A member 46 is provided.
[0043]
For this reason, when the impact force at the time of a side collision of the automobile is applied to the seat 14, the seat pan 25 of the seat cushion 15 of the seat 14 is deformed so as to shrink in the “width direction”. The coupling member 46 prevents the influence of the impact force on the seat 14 with respect to the seat 14 more reliably.
[0044]
Further, since the third coupling member 46 is disposed below the seat cushion 15 of the seat 14 on which the seated person sits, even if the third coupling member 46 is provided, the seating operation of the seated person on the seat 14 is performed. It is prevented that it gets in the way.
[0045]
Accordingly, it is possible to prevent the third coupling member 46 from hindering a smooth operation when the seat 14 is seated, separated, or operated in a seated state.
[0046]
Further, as described above, the coupling member main body 48 of the third coupling member 46 is displaced behind the bottom 25a of the seat pan 25.
[0047]
For this reason, the bottom portion 25 a of the seat pan 25 can be greatly bulged downward without being interfered by the third coupling member 46.
[0048]
Therefore, even when the deformation of the seat pan 25 is prevented by the third coupling member 46 as described above, the bulge amount of the bottom portion 25a of the seat pan 25 can be sufficiently increased. The seat cushion body 26 supported by the seat can ensure a desired thickness, and the seating comfort against this can be kept good.
[0049]
In the above case, since the third coupling member 46 is displaced rearward with respect to the bottom 25a of the seat pan 25, the third coupling member 46 interferes with the leg of the seated person seated on the seat cushion 15. This also prevents the sitting comfort of the seat cushion 15 from the seat cushion body 26.
[0050]
The first to third coupling members 36, 43, 46 are positioned substantially at the same position in the front-rear direction and the vertical direction of the vehicle body 1.
[0051]
For this reason, the third coupling member 46 cooperates with each side wall 2, the tunnel portion 10, each sheet 14, the first and second coupling members 36, 43, and the like, as a stronger cross member in the vehicle body 1. Since it works, the effects of preventing the deformation of the side wall 2 and the legs 17 and 17 and relaxing the impact force are further ensured.
[0052]
Although the above is based on the illustrated example, the third coupling member 46 may be displaced forward of the bottom 25a of the seat pan 25.
[0053]
【The invention's effect】
The effects of the present invention are as follows.
[0054]
According to the invention of claim 1, the floor panel of the vehicle body includes a tunnel portion that constitutes a substantially central portion in the width direction of the vehicle body and extends in the front-rear direction, and a seat is provided on the floor panel and on the outer side of the tunnel portion. A seat cushion on which a seated person can sit, a pair of left and right legs that support the outer side of the seat cushion on the floor panel, and the seat cushion and each leg in the vertical direction. A slide rail means interposed between the upper end of the seat and configured to allow the seat cushion to move back and forth, and the seat cushion of the seat constitutes a lower portion thereof and is supported by the floor panel And in an automobile seat comprising a seat cushion body that is placed and supported on this seat pan,
[0055]
A coupling member is provided that extends in the width direction of the vehicle body and has each end portion coupled to each side end portion of the seat pan. Of the legs, a leg that supports an inner portion of the seat cushion is provided in the tunnel portion. The coupling member is positioned at the installation position of the slide rail means in the vertical direction .
[0056]
For this reason, when the impact force at the time of a side collision of the automobile is applied to the seat, the deformation of the seat pan in the “width direction” of the body of the seat pan is reduced by the coupling member. This is surely prevented and the influence of the impact force on the seat to the seated person is small.
[0057]
According to a second aspect of the present invention, the bottom portion of the intermediate portion of the seat pan is bulged downward in plan view, and the coupling member is disposed below the seat pan.
[0058]
For this reason, even if it provides the above-mentioned connecting member, it is prevented that this interferes with the seating operation of the seated person on the seat.
[0059]
Further, the coupling member is displaced in either the front or rear direction with respect to the bottom of the seat pan.
[0060]
For this reason, the bottom part of the said sheet pan can be greatly bulged below, without interfering with the said coupling member.
[0061]
Therefore, even when the deformation of the seat pan is prevented by the coupling member as described above, the bulge amount of the bottom portion of the seat pan can be sufficiently increased, and the seat cushion main body supported by the seat pan accordingly. Therefore, the desired thickness can be ensured, and the seating comfort for this can be kept good.
[Brief description of the drawings]
FIG. 1 is a rear view of a sheet apparatus.
FIG. 2 is a side view of the seat device.
FIG. 3 is a plan view of the sheet apparatus.
FIG. 4 is a partially enlarged view of FIG. 1;
FIG. 5 is a cross-sectional view taken along line 5-5 in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Car body 3 Floor panel 4 Car compartment 13 Seat apparatus 14 Seat 15 Seat cushion 25 Seat pan 25a Bottom part 26 Seat cushion main body 46 3rd coupling member (coupling member)
47 Bracket 48 Connecting member body

Claims (2)

The floor panel of the vehicle body includes a tunnel portion that forms a substantially central portion in the width direction of the vehicle body and extends in the front-rear direction, and a seat is disposed on the floor panel and on the outer side of the tunnel portion. A seat cushion on which a seated person can sit, a pair of left and right legs that support the outer side of the seat cushion on the floor panel, and the seat cushion and the upper end of each leg in the vertical direction. A slide rail means interposed between the seat cushion for allowing the seat cushion to move back and forth, and the seat cushion of the seat constituting a lower portion thereof and supported by the floor panel, and on the seat pan In the seat of an automobile provided with a seat cushion body that is placed and supported,
A coupling member is provided that extends in the width direction of the vehicle body and has each end portion coupled to each side end portion of the seat pan. Of the legs, a leg that supports an inner portion of the seat cushion is provided in the tunnel portion. A vehicle seat reinforcing structure in which the coupling member is positioned at the installation position of the slide rail means in the vertical direction . In plan view, the bottom portion of the intermediate portion of the seat pan is bulged downward, the coupling member is disposed below the seat pan, and the coupling member is disposed in front or rear of the bottom portion. The automobile seat reinforcing structure according to claim 1, wherein the automobile seat is displaced.

Images