JPH0617667Y2 - Floor panel structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a floor panel structure of an automobile or the like.

2. Description of the Related Art For example, as an automobile floor panel structure, as shown in FIG. 7, a damping material 2, a felt 3 and a floor carpet 4 are superposed on a top surface of a steel sheet floor panel body 1 and the floor panel body is The lower surface of 1 has an ED coating film (electrodeposition coating film) 5, an undercoat 6, and a surface treatment with underfloor wax (this similar structure is, for example, Sankaidou published "Automotive Engineering Complete Volume 13 Car Body of Passenger Car"). ]).

Problems to be Solved by the Invention In the case where the above-mentioned configuration is adopted for the entire floor panel in which the strength can be increased by the floor panel main body 1, but the rigidity is mainly secured by the cross members, side members and side sills, However, there is a problem that it goes against the weight reduction of the vehicle body.

In addition, due to the nature of the floor panel body 1 made of a steel plate material, it is inevitable to use the damping material 2 in order to prevent the film vibration, which leads to a problem of cost increase.

Therefore, the present invention provides a floor panel structure that can reduce the weight of the vehicle body, is advantageous in terms of anti-vibration measures, and enables cost reduction.

Means for Solving the Problems In a floor panel structure in which an opening is formed in a general portion of a floor panel main body and a panel member is attached to the opening, the panel member uses a wire mesh as a base material and thread is provided in the wire mesh. It has a floor carpet inserted.

Function The wire mesh used as the base material of the floor carpet imparts rigidity to the panel member and moves the resonance point to eliminate the vibration damping material.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 6, a tunnel portion 8 is formed in a center portion in the vehicle width direction of a floor panel body 1 of an automobile, and sill inner panels 10 of side sills 9 are joined to both sides of the tunnel portion 8. A front cross member 11 and a rear cross member 12 are joined in the vehicle width direction of the floor panel body 1.

In this way, the rigidity of the underbody mainly composed of the floor panel body 1 is secured.

An opening 13 is formed in a general portion of the floor panel body 1 surrounded by the tunnel portion 8, the side sill 9, the front cross member 11, and the rear cross member 12.

A peripheral flange 14 is formed stepwise in the opening 13, and a panel member 15 is mounted on the peripheral flange 14 to cover the opening 13.

A seat slide rail 16 is fixed to a side portion of the tunnel portion 8, and a load (not shown) is directly applied to a general portion of the floor panel body 1 together with a seat mounting hole 17 provided on an upper surface of the front cross member 11. It prevents it from working.

As shown in FIGS. 2 and 3, the panel member 15 uses a wire mesh 18 (including a steel plate having a large number of holes, so-called “punching metal”) 18 for giving rigidity as a base material of the floor carpet 19. A felt 20 as a soundproof material is formed on the lower surface of the floor carpet 19, and an anticorrosive film 21 such as an aluminum foil is formed on the lower surface thereof.

The floor carpet 19 uses the wire mesh 18 as a base material,
The wire mesh 18 is folded through the thread 22 which becomes the fur of the floor carpet 19, and the thread 22 is the wire mesh 1.
The space between the eyes 8 is filled and the wire netting 18 is covered.

The panel member 15 is attached to the floor panel body 1
It is attached to the peripheral flange 14 of the opening 13 by means of adhesion, welding, bolts or the like.

The upper panel member 15 can be adhered or welded at the same time in the vehicle body coating and drying process.

According to the structure of the above-described embodiment, the panel member 15 is partially used, and the panel member 15 does not use a steel plate material but uses the wire mesh 18 as a base material of the floor carpet 19 as a rigid material, so that the weight of the vehicle body is reduced accordingly. can do.

In this case, the part to which the panel member 15 is attached is the general part of the floor panel body 1, and includes the tunnel part 8, the side sill 9, the front cross member 11, and the rear cross member 12.
Since it does not affect the disposition of the vehicle body skeleton member, the strength and rigidity of the underbody of the vehicle body are not reduced.

In addition, since the resonance point is moved by the wire net 18, a vibration damping material is not required as in the case of using a steel plate material, which also contributes to weight reduction of the vehicle body and can reduce the cost.

Further, since the wire net 18 is used as the base material of the floor carpet 19, the weight and the cost are reduced as compared with the case where the both are separately arranged, and the thread 22 which becomes the hair is embedded between the eyes of the wire net 18. Therefore, the wire mesh 18 by the external force F in the direction along the wire mesh surface as shown in FIGS.
Is less likely to occur (see FIG. 4), and the rigidity can be improved.

Since the wire mesh 18 is covered with the thread 22, the wire mesh 18 is not noticeable in the vehicle interior and the appearance quality is not deteriorated.

In addition, the floor carpet 1 has a shape retention property of the wire netting 18.
Since 9 can be manufactured by press molding according to the floor shape, there is a great merit in manufacturing.

As described above, according to the present invention, in the floor panel structure in which the opening is formed in the general portion of the floor panel body and the panel member is attached to the opening, the panel member is based on the wire mesh. By having a floor carpet in which thread is inserted through this wire mesh as a material, it is possible to add a function as a rigid material to the floor carpet. Therefore, the weight of the vehicle body can be reduced as compared with the case where a steel plate material is used as a rigid material. There is an effect that it can be achieved, and that it does not require a damping material and is advantageous in terms of anti-vibration.

Further, the moldability of the floor carpet is enhanced, and the rigid material is simultaneously molded by molding the floor carpet, so that it is possible to reduce the number of manufacturing machines and man-hours, and it is possible to reduce the cost.

Since the floor carpet yarn is inserted through the wire mesh used as the base material to form the floor carpet, there is an effect that deformation in the direction along the surface of the wire mesh can be prevented and the function as a rigid material is further enhanced.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention, FIG. 1 is a perspective view of a floor panel, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a main part of FIG. Enlarged view, Figure 4 is IV of Figure 2
FIG. 5 is a schematic view showing a deformed state of the wire mesh, and FIG. 7 is a cross-sectional view of a floor panel main body of the prior art. 1 ... floor panel, 13 ... opening, 15 ... panel member, 18 ... wire mesh, 19 ... floor carpet, 22
……yarn.

Claims (1)

[Scope of utility model registration request] 1. A floor panel structure in which an opening is formed in a general portion of a floor panel body, and a panel member is attached to the opening, wherein the panel member uses a wire mesh as a base material and thread is inserted into the wire mesh. A floor panel structure characterized by having a carpet.