JP3692771B2 - Seat support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat support device for a seat in a vehicle such as a bus, in particular, a seat mounted in a vehicle compartment on a wheel house.
[0002]
[Problems to be solved by the invention]
The present invention is intended to provide an apparatus that can easily support a load even when a load in the vehicle front-rear direction or the like acts on the seat when the seat is mounted in a vehicle compartment on a wheel house in the vehicle.
[0003]
[Means for Solving the Problems]
For this reason, the seat support device according to the present invention is joined to the cross members so that the wheel house in the vehicle straddles the cross members extending in the vehicle width direction at the front and rear positions of the axle, and the wheel house in the vehicle front and rear direction. A reinforcing member extending along the vertical wall surface is fixed to the extending vertical wall surface on the center side of the passenger compartment, and a leg portion of a seat attached to the vehicle interior on the wheel house is fixed to the reinforcing member.
[0004]
Therefore, when the running vehicle is suddenly braked to avoid danger, the inertia of the occupant sitting on the seat on the wheel house is transmitted to the seat by the seat belt, and the load in the vehicle longitudinal direction is applied to the seat, When a load with rotational moment due to the load is applied, the load is transmitted from the reinforcing member to the vertical wall surface on the center side of the wheel house . The wheel house has cross members extending in the vehicle width direction at the front and rear positions of the axle. It is joined to both cross members so as to straddle, and the vertical wall surface of the wheel house extends in the vehicle front-rear direction, so the strength of the wheel house vertical wall surface in the vehicle front-rear direction is very large. The load can be supported as a whole, and the load can be distributed from the vertical wall surface to the surrounding vehicle body parts via the reinforcing member. It can be.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention shown in the drawings will be described.
Cross members 1 having a hat-shaped cross section forming a bus skeleton extend in the vehicle width direction at the front and rear positions of the axle, and wheel houses 2 are welded to the upper surface of each cross member 1 so as to straddle the cross members 1. A reinforcing member 4 having a U-shaped cross-section extending in the vehicle front-rear direction is fixed to the longitudinal center wall surface 3 of the house 2 in the vehicle front-rear direction by bolting or welding. Bolt holes 6 are formed in the top.
[0006]
Further, a U-shaped reinforcing member 10 extending in the longitudinal direction of the vehicle is overlapped with the reinforcing member 4 so that the bolt hole 12 formed in the upper surface 11 of the reinforcing member 10 coincides with the bolt hole 6 of the reinforcing member 4. In addition, the reinforcing member 4 and the reinforcing member 10 form a closed cross-sectional structure by welding the inner peripheral surface of the hole 13 formed in the reinforcing member upper surface 11 and the upper surface 5 of the reinforcing member 4. The lower surface of the reinforcing member 10 is appropriately welded to the wheel house 2.
[0007]
Furthermore, the ends of the reinforcing members 14 and 14 having a U-shaped cross section extending in the vehicle front-rear direction are fitted to both ends of the reinforcing member 10 in the vehicle front-rear direction, and both the reinforcing members 10 and 14 are welded, and Each reinforcing member 14 is welded to the upper surface of each cross member 1, and the upper surface 11 and the side surface 15 of the reinforcing member 10 are covered with a floor plate 16 to form a passage 17.
[0008]
On the other hand, the seat 20 disposed above the wheel house 2 has one side fixed to a frame (not shown) on the side wall 21 of the vehicle body, and a bolt 23 that engages with a leg 22 on the other side, which is the center side of the passenger compartment. The floor plate 16 and the bolt holes 12 and 6 of the reinforcing members 10 and 4 are sequentially inserted from above and fastened with nuts 24, whereby the legs 22 are fixed to the reinforcing members 4 and 10, and A seat belt device 26 for restraining the seated occupant 25 to the seat 20 is provided on the seat 20.
[0009]
In this case, sudden braking is applied to the traveling bus for some reason, and the inertia of the occupant 25 is applied to the seat 20 via the seat belt device 26. Therefore, the load applied to the front of the vehicle on the seat 20 and the load illustrated in FIG. When the load with the counterclockwise rotational moment is applied, the load is transmitted from the reinforcing member 4 to which the leg 22 of the seat 20 is attached to the vertical wall surface 3 of the wheel house 2 to which the leg 22 is fixed. Since the wall surface 3 extends in the vehicle front-rear direction and has a relatively large area, the overall strength in the vehicle front-rear direction is extremely high, so that the vertical wall surface 3 can firmly support the load.
[0010]
Further, the load is transmitted from the reinforcing member 4 and the reinforcing member 10 to which the legs 22 of the seat 20 are fixed to the reinforcing member 14 and is also shared by the reinforcing member 14, so that the seat 20 can be firmly supported. As a result, the occupant 25 can be reliably protected.
[0011]
Further, as described above, the vertical wall surface 3 of the wheel house 2 supports the load from the seat 20, and the supporting force by the reinforcing members 4, 10 may be so small, and the reinforcing members 4, 10 are combined. Since the closed cross-sectional structure is formed, the strength thereof is relatively large. Therefore, the reinforcing members 4 and 10 can be configured to be relatively small. Therefore, the passage 17 can be easily widened in the vehicle width direction. It can be formed and has the advantage that it is convenient as a bus.
[0012]
Moreover, as described above, the seat 20 can be firmly supported by the vertical wall surface 3 and the reinforcing members 4, 10, etc. of the wheel house 2, so that there is an advantage that the shape of the wheel house 2 does not need to be particularly changed. is there.
[0013]
In the above-described embodiment, the reinforcing members 4 and 10 extend in the vehicle front-rear direction. However, when the front and rear reinforcing members 14 and 14 are arranged slightly shifted up and down, the wheel house 2 is used. The reinforcing members 4 and 10 fixed to the vertical wall surface 3 and coupled to the reinforcing members 14 are appropriately inclined up and down, or the front and rear ends of the reinforcing members 4 in the above embodiments are directly connected to the reinforcing members 14. Even if connected and the reinforcing member 10 is omitted, the same effects as those of the above embodiments can be obtained.
[0014]
【The invention's effect】
In the seat support device according to the present invention, when a load in the vehicle front-rear direction or the like is applied to a seat mounted in the vehicle compartment on the wheel house, the load is applied from the reinforcing member to the vehicle central side vertical wall surface of the wheel house. Although it is reported, the wheel house is joined to both cross members so as to straddle the cross members extending in the vehicle width direction at the front and rear positions of the axle, and the vertical wall surface of the wheel house extends in the vehicle front and rear direction. Since the longitudinal strength of the vehicle on the vertical wall surface of the wheel house is very high, the load can be supported by the entire vertical wall surface of the wheel house, and the load is applied from the vertical wall surface to each part of the surrounding vehicle body via the reinforcing member. It can be dispersed and supported, and as a result, an occupant sitting on the seat can be reliably protected.
[Brief description of the drawings]
FIG. 1 is a schematic side view of an embodiment of the present invention.
2 is a longitudinal sectional view taken along the line II-II in FIG.
FIG. 3 is an exploded perspective view of a main part of the embodiment.
[Explanation of symbols]
2 Wheelhouse 3 Vertical wall surface 4, 10, 14 Reinforcement member 17 Passage 20 Sheet

Claims (2)

A wheel house in a vehicle is joined to both cross members so as to straddle cross members extending in the vehicle width direction at the front and rear positions of the axle, and the vertical wall surface on the vehicle compartment center side extending in the vehicle front and rear direction of the wheel house is connected to the vertical wall surface. A seat support device in which a reinforcing member is fixed and a leg portion of a seat attached to the vehicle interior on the wheel house is fixed to the reinforcing member. In claim 1, the front and rear ends of the reinforcing member, the sheet supporting device which is respectively connected to the reinforcing member secured to the cross member are disposed before and after each said wheel house.

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