JP3558931B2 - Reinforcement structure for automobile seat device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a reinforcing structure for a vehicle seat device provided with a connecting member for connecting legs of left and right seats constituting a seat device.
[0002]
[Prior art]
Conventionally, there is an automobile disclosed in Japanese Utility Model Laid-Open 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 pair of left and right seats is disposed above.
[0004]
The seat includes a seat cushion disposed above the floor panel, a leg for supporting the inner portions of the seat cushions opposed to each other in the width direction of the vehicle body to the floor panel, and a rear end of the seat cushion. And a seat back projecting upward from the vehicle.
[0005]
Further, in the above configuration, conventionally, a seat belt anchor of a seat belt device capable of restraining a seated person sitting on each seat on the seat is attached to a rear end of the inner portion of each seat cushion. is there.
[0006]
[Problems to be solved by the invention]
By the way, a large load is applied to each leg of the seat from the occupant side.Also, at the time of a side collision where an object collides with the side of the vehicle body from the outside, or during forward running of the vehicle. At the time of a front collision colliding with any object in front thereof, a large impact force may be applied to the legs of the sheet, and in this case, there is a possibility that these legs are deformed.
[0007]
In particular, in the event of a side collision of the vehicle, the impact force is concentrated on one of the sheets adjacent to the side wall via the one side wall, and the leg of the sheet may be more easily deformed.
[0008]
Further, as described above, when the seat belt anchor of the seat belt device is attached to the rear end of the seat cushion in the width direction of the seat cushion in the width direction of the seat, the occupant sits on the seat by the seat belt device. When a frontal collision is made in a state in which the seat is restrained, a large component force toward the outside of the vehicle body tends to be given to the seat due to the impact force applied to the seat from the seated person via the seat belt anchor, At this time, a larger component force is applied to the rear leg of the front and rear legs toward the outside of the vehicle body, and the rear leg may be easily deformed.
[0009]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in the event of an automobile collision, the leg of the seat is more reliably prevented from being deformed, and the seated person is firmly supported on the floor panel via the seat. The task is to do so.
[0010]
[Means for Solving the Problems]
The reinforcing structure in the vehicle seat device of the present invention for solving the above-mentioned problems is as follows.
[0011]
According to the first aspect of the present invention, a pair of left and right seats 14 and 14 are disposed on the floor panel 3 of the vehicle body 1, and each of these seats 14 is disposed above the floor panel 3, Legs 16 and 17 for supporting the inner portions 15a of the respective seat cushions 15 facing each other in the width direction of the seat cushion 15 on the floor panel 3, and a seat back 18 projecting upward from the rear end of the seat cushions 15; In a seat device of an automobile having:
[0012]
Among the left and right sheets 14, 14, a second connecting member (connecting member) 43 for connecting the leg 17 of one sheet 14 and the leg 17 of the other sheet 14 to each other is provided.
[0013]
According to a second aspect of the present invention, in addition to the first aspect, a pair of front and rear legs 16 and 17 of each of the seats 14 is provided so that a seated person sitting on each of the seats 14 can be restrained on the seat 14. In a vehicle seat device in which a seat belt anchor 22 of a seat belt device 21 is attached to a rear end of the inner portion 15a of each of the seat cushions 15,
[0014]
The rear legs 17, 17 of the front and rear legs 16, 17 of each of the sheets 14 are connected to each other by the second connecting member (connecting member) 43.
[0015]
According to a third aspect of the present invention, in addition to the first or second aspect of the present invention, a tunnel portion 10 is formed by expanding a middle portion in the width direction of the floor panel 3 upward and extending forward and backward, thereby forming the width of the vehicle body 1. In a vehicle seat device in which each of the seats 14 is disposed on each outer side of the tunnel portion 10 in a direction,
[0016]
The lower ends of the legs 17, 17 connected to each other by the second connecting member (connecting member) 43 are supported on the respective sides of the tunnel portion 10, and are separated above the tunnel portion 10 to separate the second connecting member. (Coupling member) 43 is located.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
In FIG. 2, reference numeral 1 denotes a sheet-metal body of an automobile, and an arrow Fr indicates the front of the automobile. Note that 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”).
[0019]
The vehicle body 1 includes left and right side walls 2 and 2 and a floor panel 3 disposed between lower ends of the left and right side walls 2 and 2 and supported by lower ends of the side walls 2. 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.
[0020]
Each of the side walls 2 includes an outer panel 6 and an inner panel 7 which face each other in the “width direction” and are connected to each other. Further, the floor panel 3 bulges upward, forming general portions 9 and 9 constituting 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 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 symmetric with respect to a vertical central imaginary plane 11 that passes through substantially the center in the “width direction”.
[0021]
The vehicle 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. 14, and these sheets 14, 14 are disposed outside each of the tunnel portions 10 in the “width direction”.
[0022]
Each of the seats 14 is configured such 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. 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; 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, the seat back 18 protruding upward from the portion and allowing a seated person sitting on the seat cushion 15 to be able to back up. The seat cushion 15 is interposed and movable back and forth with the seat back 18 with respect 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.
[0023]
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 of an inner portion 15a of a seat cushion 15 of each seat 14 facing each other in the "width direction". A seat belt 23 is provided which extends from the knee and has an extended end portion removably engaged with the seat belt anchor 22 so as to restrain a seated person.
[0024]
The seat cushion 15 includes a seat pan 25 made of sheet metal having a lower portion and functioning as a seat frame, and a seat cushion main body 26 fitted in the seat pan 25 and supported by the seat pan 25. In order to increase the thickness of the seat cushion main body 26 to improve elastic sitting comfort, the bottom 25a of the seat pan 25 is bulged downward so as to be spherical.
[0025]
Of the legs 16 and 17 of each seat 14, before and after supporting the inner portion 15 a of the seat cushion 15, and before and after the rear leg 16 and 17, the lower ends of the legs 16 and 17 of the tunnel portion 10 are fastened by fasteners 28. It is firmly fixed to each side and is supported by the floor panel 3. On the other hand, before the outer portion 15b of the seat cushion 15 on the opposite side of the inner portion 15a in the "width direction", before supporting the rear portion, and the rear legs 16, 17, the lower ends of the legs 16 and 17 are respectively fastened by fasteners 29. The floor panel 3 is fixed to the outer end of each general portion 9 and is supported by the floor panel 3.
[0026]
The slide rail means 19 is supported by each upper end of each of the legs 16 and 17 and extends in the front-rear direction. A pair of left and right fixed rails 30 is provided, and each of the fixed rails 30 is freely movable back and forth. And a movable rail 31 which is supported so as to be engaged and disengageable at a desired arbitrary position, and a bracket 32 is provided on each of the movable rails 31. Are fastened and supported by fasteners 34.
[0027]
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 each of the side walls 2 in the “width direction”. Here, of the legs 16 and 17 of each seat 14 supporting 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 to each other by a tool 39. 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. And a fastener 41 to be connected to the inner panel 7 by fastening. That is, the first connecting member 36 is connected 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.
[0028]
Further, of the left and right sheets 14, 14, there is provided a second coupling member 43 for coupling the leg 17 of one sheet 14 and the leg 17 of the other sheet 14 to each other. The second coupling member 43 is located at a position above the tunnel portion 10 and, among the legs 16 and 17 supporting the inner portion 15 a of the seat cushion 15 of each of the left and right seats 14, the rear left and right legs 17 and 17. And a fastening member 45 for fastening each end of the joining member main body 44 to the leg 17 by fastening. In this case, each end of the second coupling member 43 is coupled to the upper part of each leg 17 near the vertical direction of the slide rail means 19.
[0029]
Below the seat cushion 15 in each of the seats 14, a third connecting member 46 for connecting the left and right side ends of the seat 14 to each other is provided. The third coupling member 46 includes a pair of left and right 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 pipe supported by welding and extending in the “width direction”. That is, the third connecting member 46 connects the left and right side ends of the seat pan 25 of the seat cushion 15 to each other. The seat pan 25 is reinforced by being connected.
[0030]
In the above case, the first to third coupling members 36, 43, 46 are located at substantially the same position in the front-rear direction and the vertical direction of the vehicle body 1, respectively. The first to third connecting 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.
[0031]
According to the above configuration, the first coupling member 36 that couples each of the side walls 2 and 2 and the sheet 14 adjacent to each of the side walls 2 is provided, and the sheets 14 and 14 that are adjacent to each other in the “width direction” are connected to each other. Is provided, and the first and second connecting members 36 and 43 are located at substantially the same position in the front-rear direction of the vehicle body 1.
[0032]
For this reason, the side walls 2 and 2, the tunnel portion 10, the sheets 14 and 14 adjacent to each other, the first coupling member 36, and the second coupling member 43 cooperate with each other to function as 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 being concentrated only on the one side wall 2, and the seats 14, 14 and the first The energy is transmitted to the second coupling members 36 and 43 so as to be dispersed, and energy in the “width direction” of the vehicle body 1 is absorbed by the impact force, and the impact force is reduced.
[0033]
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 in the “width direction” of the vehicle body 1 as described above. 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.
[0034]
Further, as described above, each seat 14 is disposed above the floor panel 3 so that a seated person can be seated thereon, and the leg 17 for supporting the seat cushion 15 on the floor panel 3 is provided. The first coupling member 36 couples the side wall 2 and the leg 17 of the seat 14.
[0035]
For this reason, a large load is applied to the leg 17 of the seat 14 from the occupant side. However, since the leg 17 is reinforced by the first coupling member 36, the seat 14 is Even if an impact force is applied to each of the legs, the legs 17 are prevented from being easily deformed, so that the seated person is firmly supported by the floor panel 3 via the seat 14.
[0036]
In addition, since the first coupling member 36 is coupled to the leg 17 of the seat 14 on which the occupant sits, the first coupling member 36 is located below the seat cushion 15. Therefore, even if the first coupling member 36 is provided, it is possible to prevent the first coupling member 36 from interfering with a seating operation of the occupant on the seat 14.
[0037]
Therefore, it is possible to prevent the smooth operation in the case where the seat 14 is seated, detached, or operated in the seated state from being hindered by the first coupling member 36.
[0038]
Further, as described above, the second coupling member 43 couples the legs 17 of the left and right sheets 14 to each other.
[0039]
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 coupling members 43, and the occupant can be further strengthened with respect to the floor panel 3 via the seat 14. Strongly supported.
[0040]
Further, since the second coupling member 43 is coupled to the leg 17 of the seat 14 on which the occupant sits below the seat cushion 15, the second coupling member 43 is disposed below the seat cushion 15. Therefore, even if the second coupling member 43 is provided, it is possible to prevent the second coupling member 43 from interfering with the seating operation of the occupant on the seat 14.
[0041]
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 a seated state by the second coupling member 43.
[0042]
Moreover, each of the seats 14 can be seated from the front thereof, 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, it is possible to more reliably prevent the first and second coupling members 36 and 43 from obstructing the seat 14 from sitting on the seat 14.
[0043]
Further, according to the above configuration, a pair of legs 16 and 17 of each seat 14 is provided in front and rear, respectively, and the seat belt anchor 22 is attached to a rear end of the inner portion 15a of each seat cushion 15 and The rear legs 17, 17 of the front and rear legs 16, 17 of the seat 14 are connected to each other by the second connecting member 43.
[0044]
Here, as described above, when the seat belt anchor 22 of the seat belt device 21 is attached to the rear end of the seat 14 in the "width direction" of the seat cushion 15 of the seat 14 so as to be biased toward the inner portion 15a. When a frontal collision occurs with the occupant restrained on the seat 14 by the device 21, the impact force applied to the seat 14 from the occupant side via the seatbelt anchor 22 applies the vehicle body 1 to the seat 14. Of the front and rear legs 16 and 17, in particular, a larger component toward the outside of the vehicle body 1 is applied to the rear leg 17. May be easily deformed.
[0045]
However, as described above, since the rear legs 17, 17 are connected to each other by the second connecting member 43, the legs 17 reinforce each other, and the deformation thereof is prevented.
[0046]
Therefore, even when an impact force is applied to each of the seats 14 at the time of a collision of the automobile, each of the legs 17 is prevented from being easily deformed. Strongly supported by
[0047]
Further, as described above, the lower ends of the legs 17, 17 connected to each other by the second connecting member 43 are supported on the respective side portions of the tunnel portion 10, and are separated above the tunnel portion 10 so as to be separated from the second portion. The coupling member 43 is located.
[0048]
Here, the tunnel portion 10 is a portion in which a part of the floor panel 3 is bulged upward, and is a portion having high strength and rigidity. Therefore, each of the legs 17, 17 is firmly attached to the floor panel 3. The tunnel portion 10, the legs 17, 17 and the second coupling member 43 are supported and have a frame structure that easily ensures high strength and rigidity when viewed from the line of sight of the vehicle body 1 in the front-rear direction. Each of the legs 17 is very strongly reinforced, so that its deformation is more reliably prevented.
[0049]
Therefore, even when an impact force is applied to each of the seats 14 at the time of a collision of the automobile, each of the legs 17 is prevented from being easily deformed. Strongly supported by
[0050]
Further, as described above, the third connecting member 46 for connecting the left and right side portions of the sheet 14 to each other is provided.
[0051]
Therefore, when the impact force at the time of the side collision of the vehicle is applied to the seat 14, the fact that the seat cushion 15 and the like of the seat 14 are deformed to be reduced in the "width direction" is determined by the third coupling member 46. Thus, the impact of the impact force on the seat 14 to the seated person can be reduced.
[0052]
In addition, since the third coupling member 46 is positioned below the seat cushion 15 of the seat 14 on which the occupant sits, even if the third coupling member 46 is provided, the third coupling member 46 can be used for the seating operation of the occupant with respect to the seat 14. Is prevented from being in the way.
[0053]
Therefore, it is possible to prevent the smooth operation in the case where the seat 14 is seated, detached, or operated in the seated state from being hindered by the third coupling member 46.
[0054]
The first to third coupling members 36, 43, 46 are located at substantially the same position in the front-rear direction and the up-down direction of the vehicle body 1.
[0055]
For this reason, the third connecting member 46 cooperates with each side wall 2, the tunnel portion 10, each seat 14, the first and second connecting members 36, 43, and the like, like a stronger cross member in the vehicle body 1. Since it works, the effect of preventing the deformation of the side wall 2 and each of the legs 17 and 17 and the effect of reducing the impact force are further ensured.
[0056]
Although the above description is based on the illustrated example, the first to third coupling members 36, 43, and 46 are applied to the front left and right legs 16, 16 in addition to or in place of the above configuration. The seats 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.
[0057]
Further, the third connecting member 46 may directly connect the left and right legs 16 and 16 on the front side or the right and left legs 17 and 17 on the rear side. In this case, the third connecting member 46 is larger from the seated person side. Each leg 16, 17 to which a load is applied is more reliably reinforced by the third coupling member 46, so that the occupant of the floor panel 3 is more firmly supported via the seat 14.
[0058]
【The invention's effect】
The effects of the present invention are as follows.
[0059]
According to the first aspect of the present invention, a pair of left and right seats is disposed on a floor panel of the vehicle body, and each of the seats is opposed to a seat cushion disposed above the floor panel and each of the seat cushions oppose each other in a width direction of the vehicle body. A vehicle seat device including a leg for supporting an inner portion of a seat cushion on the floor panel and a seatback protruding upward from a rear end of the seat cushion,
[0060]
A connecting member is provided for connecting the leg of one of the left and right sheets and the leg of the other sheet to each other.
[0061]
Therefore, each leg of the left and right sheets is reinforced by the connecting member.
[0062]
Further, when the impact force is applied to one of the sheets during a side collision of the vehicle, the impact force is prevented from being concentrated on only one of the sheets, and the impact force is also applied to the other sheet via the coupling member. The energy is transmitted so as to be dispersed, and the energy based on the above-mentioned impact force is absorbed by each part in the “width direction” of the vehicle body, and the impact force is reduced.
[0063]
Therefore, even when an impact force is applied to each of the seats at the time of a collision of the automobile, each of the legs is prevented from being easily deformed to the extent that the impact force is alleviated. Are strongly supported by floor panels.
[0064]
Further, since the coupling member is coupled to the leg lower than the seat cushion of the seat on which the seated person sits, the coupling member is positioned below the seat cushion, and therefore, Even if the coupling member is provided, it is possible to prevent the coupling member from obstructing the seating operation of the occupant with respect to the seat.
[0065]
Therefore, it is possible to prevent the smooth operation of the seat when the user is seated, separated from the seat, or operated in the seated state by the coupling member.
[0066]
The invention of claim 2 provides a seat belt anchor of a seat belt device that provides a pair of front and rear legs of each of the seats so that a seated person sitting on each of the seats can be restrained on the seat. In a vehicle seat device attached to a rear end portion of an inner portion,
[0067]
Among the front and rear legs of each of the sheets, the rear legs are connected to each other by the connecting member.
[0068]
Here, as described above, when the seat belt anchor of the seat belt device is attached to the rear end of the seat cushion in the "width direction" of the seat in the "width direction", the seat belt device applies When a frontal collision occurs with the occupant restrained, a large component force directed outward of the vehicle body is applied to the seat by an impact force applied to the seat from the occupant side via the seat belt anchor. At this time, a larger component force is applied to the rear leg of the front and rear legs toward the outside of the vehicle body, so that the leg may be easily deformed thereafter.
[0069]
However, as described above, since the rear legs are connected to each other by the connecting member, the respective legs reinforce each other, and the deformation thereof is prevented.
[0070]
Therefore, even when an impact force is applied to each of the seats at the time of a collision of the automobile, each of the legs is prevented from being easily deformed, so that the seated person is firmly supported by the floor panel via the seat. Is done.
[0071]
According to a third aspect of the present invention, a midway portion of the floor panel in the width direction is bulged upward to form a tunnel portion extending forward and backward, and the seats are arranged outside each of the tunnel portions in the width direction of the vehicle body. In the installed car seat device,
[0072]
The lower end of each leg connected to each other by the connecting member is supported on each side of the tunnel portion, and the connecting member is positioned above and separated from the tunnel portion.
[0073]
Here, since the tunnel portion is a portion in which a part of the floor panel is bulged upward and has high strength and rigidity, the respective legs are firmly supported by the floor panel, and From the perspective of the front-rear direction, since the tunnel portion, each leg, and the connecting member have a frame structure that easily ensures large strength and rigidity, the legs are extremely strongly reinforced. The deformation is more reliably prevented.
[0074]
Therefore, even when an impact force is applied to each of the seats at the time of a collision of the automobile, each of the legs is prevented from being easily deformed, so that the seated person is firmly supported by the floor panel via the seat. Is done.
[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 Cabin 9 General part 10 Tunnel part 13 Seat device 14 Seat 15 Seat cushion 15a Inside part 15b Outside part 16, 17 Leg 18 Seat back 19 Slide rail means 21 Seat belt device 22 Seat belt anchor 23 Seat belt 43 2nd joining member (joining member)

Claims (3)

A pair of left and right seats is disposed on a floor panel of the vehicle body, and each of these seats is disposed above the floor panel, and an inner portion of each of the seat cushions opposed to each other in the width direction of the vehicle body. In a vehicle seat apparatus including a leg supported by a floor panel and a seat back protruding upward from a rear end of the seat cushion,
A reinforcing structure for an automobile seat device provided with a connecting member for connecting a leg of one of the left and right seats and a leg of the other seat to each other. A pair of front and rear legs of each of the seats are provided, and a seat belt anchor of a seat belt device that enables a seated person sitting on each of the seats to be restrained on the seat is provided at a rear end of the inside portion of each of the seat cushions. In the attached car seat device,
The reinforcing structure according to claim 1, wherein the rear legs of the front and rear legs of the respective seats are connected to each other by the connecting member. A vehicle seat device in which a midway portion in the width direction of the floor panel is bulged upward to form a tunnel portion extending forward and backward, and the seats are disposed outside each of the tunnel portions in the width direction of the vehicle body. ,
3. The vehicle according to claim 1, wherein lower ends of the legs connected to each other by the connecting member are supported on each side of the tunnel, and the connecting member is located above the tunnel. Reinforcement structure in the seat device.

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