JP2006001352A - Vehicular seat installation structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular seat installation structure capable of suppressing ingress of a vehicle body portion inside a cabin caused by a side impact irrespective of the vehicle kind with a simple structure under a condition of installation in which one side of a seat cushion is installed on a raised part of a floor panel. <P>SOLUTION: A configuration in which a side part 15x outside the vehicle width direction is expanded to a point close to an adjacent side sill 3 is employed to a leg part 15b outside the vehicle width direction of a seat cushion 9a installed on a non-raised panel part 8b. When the side sill 3 is displaced in the rotational direction by the deformation of a vehicle body member 6 forming a side portion of a vehicle body 1 in a side impact, the side sill 3 is received immediately by the side part 15x of the leg part, the behavior of the rotation of the side sill 3 is suppressed by the rigidity and strength of the leg part 15b increased by expansion of the side part 15x to prevent ingress of the vehicle body member 6 inside the cabin. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle seat installation structure in which a seat cushion is installed between a raised panel portion and a non-raised panel.

  An automobile (vehicle) has a structure in which a large in-vehicle device, for example, a fuel tank is arranged using a space under a seat cushion of a front seat in order to earn an effective space in a vehicle interior. In this vehicle body structure, a structure is used in which a panel portion under a front seat of a floor panel is raised and a fuel tank is accommodated in the raised panel portion.

  By the way, since the fuel tank is a large-sized device, the raised panel portion is formed from the center in the vehicle width direction to both sides in the vehicle width direction.

  For this reason, the front seat is installed on a stepped panel part such as a raised panel part (raised part) and a non-raised panel part, unlike when installed on a normal flat floor panel for both the driver's seat and passenger seat. A structure is used. Specifically, for both the seat cushions of the driver's seat and the passenger seat, the side portion of the side sill side (the vehicle width direction outer side) is the leg portion, and is installed on the panel portion that does not rise, A structure is used in which the legs are reduced in height by the level difference of the panel part, and are installed on the raised panel part and installed in a horizontal state.

  By the way, the vehicle body is required to have safety for protecting the passenger in the vehicle compartment from the vehicle body member on the vehicle body side portion that is deformed by the impact of the side collision. For this purpose, it is desirable to suppress the intrusion amount of the vehicle body member, particularly the center pillar, that enters the vehicle interior due to a side collision.

To this end, it is conceivable to reinforce each part of the vehicle body using a reinforcing member. With regard to reinforcement, for example, many techniques have been proposed in which the base portion of the center pillar as disclosed in Patent Document 1 is reinforced with a cross member structure between side sills with thickened ends.
JP-A-11-291953

  However, the seat structure that supports both sides of the front seat with a raised portion and a panel portion other than the raised portion is a special structure that is different from that supported on a normal flat panel, so it fits within the raised portion. Due to equipment restrictions, members that penetrate the inside and outside of the panel cannot be installed. For this reason, the reinforcement technique as disclosed in Patent Document 1 cannot be applied.

  Therefore, in the case of an automobile equipped with a fuel tank in the raised part, instead of the side pillar, the rigidity of the center pillar and side sill is separately increased in order to suppress the intrusion amount of the vehicle body member that enters the vehicle interior, for example, the center pillar. A method of suppressing the displacement of the side sill by providing a reinforcing structure that reinforces each of them is adopted, or a method of increasing the clearance by increasing the gap between the center pillar and the seat cushion. However, the structure to be reinforced tends to be quite complicated. Also, in the case of a structure that increases the gap, the gap between the center pillar and the seat cushion cannot be secured depending on the vehicle type. For this reason, there are many problems in suppressing intrusion.

  Therefore, the object of the present invention is to have a simple structure under the installation condition that one side of the seat cushion is installed on the raised portion of the floor panel, and the vehicle body part can enter the vehicle interior side due to side collision regardless of the vehicle type. The object is to provide a seat mounting structure for a vehicle body that can be suppressed.

  In order to achieve the above object, the invention according to claim 1 is provided such that a side portion on the outer side in the vehicle width direction is adjacent to a leg portion on the outer side in the vehicle width direction of the seat cushion other than the raised portion of the floor panel. Adopting a structure that protrudes to a point close to the side sill, the gap between the side sill and the seat cushion is narrowed.

  According to the second aspect of the present invention, at least the center pillar of the second leg portion on the outer side in the vehicle width direction of the seat cushion so as to be the most suitable configuration for preventing the vehicle body member from entering the vehicle interior side. A configuration was adopted in which the side portion on the outer side in the vehicle width direction was extended to a point close to the side sill with respect to the second leg portion arranged nearby.

  The invention according to claim 3 employs a configuration in which the side portion where the second leg portion protrudes has a wide portion extending along the longitudinal direction of the side sill so that the side sill can be prevented from being displaced more effectively. .

  According to the first aspect of the present invention, when the side sill is displaced in the rotation direction due to deformation of the vehicle body member forming the side part of the vehicle body at the time of a side collision, the side sill is immediately received by the side part of the protruding leg part (contact) ) And the behavior which the side sill tries to rotate is suppressed by the rigidity strength of the leg part which increased when the side part protruded. By suppressing the displacement of the side sill, the progress of deformation of the vehicle body member forming the vehicle body side portion is suppressed. In addition, the invasion suppressing action can be sufficiently ensured even if the gap between the side sill and the leg is small.

  Therefore, in the installation condition where one side of the seat cushion is installed on the raised panel part, it is a simple structure that projects the outer side of the leg part in the vehicle width direction regardless of the vehicle type, at the time of side collision, Intrusion of the vehicle body member into the vehicle interior side can be suppressed.

  According to the second aspect of the present invention, it is effective in suppressing intrusion of the vehicle body member, particularly the center pillar into the vehicle interior side.

  According to the third aspect of the present invention, since the displacement of the side sill is suppressed in a wide area, it is possible to effectively suppress the intrusion of the vehicle body member into the vehicle interior side at the time of a side collision.

[One Embodiment]
Hereinafter, the present invention will be described based on an embodiment shown in FIGS.

  FIG. 1 shows a part of a side surface of an automobile (vehicle), for example, a sedan type automobile. In FIG. 1, reference numeral 1 denotes a vehicle body having entrances 2 (only one side is shown) on both sides in the vehicle width direction. In the figure, 3 is a side sill provided to extend in the longitudinal direction of the vehicle body along the lower edge of the entrance 2 and 4 is provided to extend in the longitudinal direction of the vehicle along the upper edge of the entrance 2. The roof side rail 5 is a front pillar provided at the front edge of the entrance 2 so as to be connected to the roof side end and the side sill end, and 6 is a longitudinal direction of the side sill 3 (front and rear of the vehicle body). Direction) A center pillar that rises from the center and partitions the center of each entrance 2 is shown. The upper end portion of the center pillar 6 is connected to the center in the longitudinal direction of the roof side rail 4. The entrance 2 is configured to be opened and closed by a front door and a rear door (not shown).

  In the figure, 8 is a floor panel provided between the side sills 3 and 3 (only one side is shown), and 9 is a driver seat and a passenger seat respectively arranged on the front side of the floor panel 8. Front seats (seats; each of which is configured to have a seat cushion 9a and a seat back 9b: only the passenger seat side is shown), 10 is a rear seat (partially arranged) on the rear side of the floor panel 8 Only shown). The front seat 9 is disposed at a point adjacent to the center pillar 6.

  Further, in the floor panel 8, a region α extending from the center in the vehicle width direction of the vehicle body 1 to both sides in the vehicle width direction (see FIG. In FIG. 4), a floor panel portion 8a (corresponding to the raised portion of the present application) is formed so as to be greatly raised above the other floor panel portion. In the floor panel portion 8a, a large vehicle-mounted device, for example, a fuel tank 11 is accommodated so as to occupy almost the entire region.

  As shown in FIGS. 2 to 4, the passenger seat cushion 9 a is disposed on the floor panel portion 8 a having a raised side (one side) in the center in the vehicle width direction, and is located on the opposite side in the vehicle width direction. The side portion (one side) is disposed on the floor panel portion 8b that is not raised. Although not shown, the seat cushion 9a of the driver's seat is also disposed on the floor panel portion 8a in which the side portion in the center in the vehicle width direction is raised, and the floor panel portion in which the side portion on the outer side in the vehicle width direction is not raised. 8b.

  As shown in FIGS. 2 to 4, for example, as shown in FIGS. 2 to 4, the passenger seat and the driver's seat seat cushion 9 a each extend in the vehicle longitudinal direction as shown in FIGS. 2 to 4. A seat slide mechanism 14 having a pair of slide rails 12 and a pair of frame members 13 along the lower portion of the slide rails 12 is provided. Further, leg portions 15 are assembled to the front and rear end portions of the slide rail 12 and the frame member 14, respectively.

  Of these leg portions 15 of the passenger seat and driver seat cushion 9a, the leg portions 15a (corresponding to the first leg portion of the present application) assembled at the front and rear of the center side in the vehicle width direction are all shown in FIG. As shown in the figure, for example, it is formed of, for example, a metal leg component which is configured to suppress the leg height in consideration of the raised floor panel portion 8a (the drawing shows only the passenger seat side). An installation seat 16a formed at the tip of these leg parts is supported on the floor panel portion 8a by a fastener, for example, a bolt and nut 17, respectively.

  Each of the remaining leg portions 15b (corresponding to the second leg portion of the present application) assembled to the front and rear of the remaining vehicle width direction outside is a normal flat floor panel portion 8b as shown in FIGS. For example, a sheet metal leg part having a leg height determined according to the (non-raised floor panel part) is used (the drawing shows only the passenger seat side). Of the leg parts of the driver seat and passenger seat, the rear leg parts arranged near the center pillar 6 are provided with side portions 15x on the outer side in the vehicle width direction as shown in FIGS. A structure that can project to the vicinity of the adjacent side sill 3 is employed.

  Here, the basic structure of the leg parts will be described. In this structure, for example, as shown in FIGS. 2 and 3, the rear end portion of the frame member 14 is held and attached to the rear end portion of the slide rail 12. Holder portion 18, wall portion 19 facing in the vehicle width direction descending from the end portion of holder portion 18 toward floor panel surface 8 b, and installation seat 20 (floor panel surface 8 b formed at the front end portion of wall portion 19 And a structure in which the installation seat 16a is supported by a floor panel portion 8b that is not raised by a fastener, for example, a bolt and nut 21, is used.

  And the front-end | tip part which faces the vehicle width direction outer side of the wall part 19 can be projected ahead among these. Specifically, the lower side of the front end portion of the wall portion 19 is as close as possible to a point approaching the adjacent side sill 3 as shown in FIG. 4, for example, a wall portion on the vehicle interior side of the inner panel 3a of the side sill 3. It is projected to the point where it was made to be, that is, the point near the wall. As shown in FIG. 4, the overhanging side portion 15x of the leg portion 15b in the vehicle width direction is disposed at a point close to the side sill 3, so that the gap L between the side sill 3 and the rear side leg portion 15b is obtained. Is reduced to a minimum.

  A wall portion 23 extends from the front end portion of the wall portion 19 along the length direction of the holder portion 18 which is the longitudinal direction of the side sill 3, and the side portion 15 x is a wide portion along the longitudinal direction of the side sill 3. .

  The same structure as that of the rear leg portion 15a described above is used for the front leg portion 15b (front leg component). Since the front leg portion 15b is the same as the front leg portion 15b, the same reference numerals are assigned to the rear leg portions 15a, and the description thereof is omitted.

  Reference numeral 24 denotes a side frame provided so as to pass through both sides of the floor panel 8 in the vehicle width direction, and 25 denotes a cover that covers the outside of the sliding mechanism 14 and the reclining mechanism (not shown) of the seat back 9b.

  According to the seat installation structure configured as described above, for example, the vehicle body 1 is subjected to a side collision, and an impact is applied to one side portion of the vehicle body 1, for example, the vicinity of the center pillar 6 as shown by an arrow F in FIG. Suppose power is applied.

  Then, the center pillar 6 and each door (not shown) forming the vehicle body side part enter the vehicle interior side.

  Here, the side sill 3 has a closed cross-sectional shape with higher rigidity and strength than the floor panel 8.

  Therefore, as shown in FIG. 5, the side sill 3 starts to be displaced (deformed) in the rotating direction while deforming the floor panel portion between the side sill 3 and the side frame 24 by the applied load.

  At this time, the side portion 15x of the leg portion 15b on the rear side of the front seat 9 disposed near the center pillar 6 projects to a point close to the side sill 3, so that the side sill 3 is immediately received (contacted). . And the behavior (deformation) that the side sill 3 tries to rotate is suppressed by the rigidity strength of the leg portion 15b increased by the overhang. The suppression of the deformation of the side sill 3 is also performed on the front leg 15a.

  By suppressing the deformation of the side sill 3, the progress of the deformation of the center pillar 6 and the door assembled to the side sill 3 can be suppressed, and the center pillar 6 and the door can be prevented from entering the vehicle interior (the amount of intrusion). : Decrease).

  Therefore, in a special seat structure in which one side of the seat is supported by the floor panel 8 that is raised on one side, the vehicle body such as the center pillar 6 and the door is provided in a simple structure in which the side portion 15x of the leg portion 15 is projected. Intrusion of the vehicle body member forming the side portion into the vehicle interior side can be suppressed. In addition, the invasion suppressing action can be sufficiently ensured even if the gap between the center pillar 6 or the side sill 3 and the leg portion 15 is small, and can be applied to any type of vehicle.

  In particular, since the protruding portion of the side portion 15x is formed at least on the leg portion 15 disposed near the center pillar 6, it is effective for the center pillar 6 that has a high tendency to enter the vehicle interior side. Of course, if the side portions 15x are formed on the front and rear leg portions 15, respectively, a more effective invasion suppression effect of the vehicle body member can be obtained.

  In addition, since the side portion 15x is wide in the longitudinal direction of the side sill 3, rotation (displacement) of the side sill 3 is suppressed in a wide area at the time of a side collision, and the intrusion of the vehicle body member into the vehicle interior side is effectively performed. Can be suppressed.

  The present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit of the present invention. For example, in one embodiment, the structure of the leg portion is such that only the lower side portion of the leg portion protrudes. However, the present invention is not limited to this, and all of the side portions may be extended.

The side view which shows the seat installation structure which concerns on one Embodiment of this invention with a vehicle body. The perspective view which looked at the installation structure of the passenger side seat from the front side. The perspective view similarly seen from the rear side. Sectional drawing of the center pillar, side sill, and leg part vicinity which followed the AA line in FIG. Sectional drawing which shows a state when receiving the side collision.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle body, 3 ... Side sill, 6 ... Center pillar, 8 ... Floor panel, 8a ... Raised panel part (raised part), 8b ... Non-raised panel part (panel part other than raised part), 9 ... Front seat (seat ), 9a ... Seat cushion, 11 ... Fuel tank (on-vehicle equipment), 15a ... Leg part on the center side in the vehicle width direction, 15b ... Leg part on the outer side in the vehicle width direction, 15 ... Projected side part.

Claims (3)

A vehicle body provided with a floor panel having a raised portion between side sills located on both sides in the vehicle width direction;
A first leg that is disposed on the floor panel adjacent to the side sill and that has a vehicle width direction center side installed on the raised portion and a vehicle leg direction outer side that is installed on a panel portion other than the raised portion. A seat cushion having
The vehicle seat installation structure according to claim 1, wherein the second leg portion is configured such that a side portion on the outer side in the vehicle width direction protrudes to a point approaching the side sill. The vehicle body is configured to have a center pillar that rises from the side sill,
The seat cushion has the second leg portion disposed on the floor panel adjacent to the center pillar and installed on a panel portion other than the raised portion at the front and rear portions on the outer side in the vehicle width direction. Configured,
A side portion of the second leg portion, which is disposed near at least the center pillar of the second leg portion, on the outer side in the vehicle width direction is configured to project to a point close to the side sill.
The vehicle seat installation structure according to claim 1.   3. The vehicle seat installation structure according to claim 1, wherein the projecting side portion of the second leg portion has a wide portion extending along a longitudinal direction of the side sill.

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