JP2002159368A - Seat cushion structure of automobile seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of a seat failing to support the sitting posture of a rider in a comfortable condition due to the deformation of a cushion pad around the buttocks of the rider, involved in the slide of the rider in the direction of a load by providing notches in an automobile seat in which a seat cushion is formed by mounting a cushion pad on a cushion panel having notches in the sidewall portions as the parts around the buttocks of the rider. SOLUTION: A supporting property is added by embedding auxiliary members 8 and 10 in positions corresponding to notches 7 in the cushion pad 5 to supplement the supporting property of notches of the sidewall plate 6b of a cushion panel 6. By adjusting the thickness, material, embedding position, or the like, of the auxiliary members 8 and 10, an automobile seat having a variety of supporting forces can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat cushion for an automobile seat, and more particularly, to a seat cushion excellent in support of an occupant during driving.

[0002]

2. Description of the Related Art As shown in FIG. 1, an automobile seat 1 mainly includes a seat cushion 2, a seat back 3, and a headrest 4. As shown in FIGS. 2 and 3, the seat cushion 2 includes a cushion pad 5, a cushion panel 6 for mounting the cushion pad 5, and a skin material 9 covering the surface and side surfaces of the cushion pad 5. I have.

As shown in FIG. 2, the cushion panel 6 has a substantially box-like shape having a bottom plate 6a and a side wall plate 6b around the bottom plate 6a. As shown in FIG. Is the side wall plate 6b of the cushion panel 6.
Is assembled so as to cover the end 6c.

[0004] The side wall plate 6b of the cushion panel 6 acts as a regulating wall against deformation of the cushion pad 5 when the seating position of the occupant 11 is deviated due to the lateral G during turning, and the occupant 11 is prevented from moving. There is a role to maintain the posture.

[Problems to be solved by the invention]

[0005] In the manufacture of automotive seats, cushion panels of the same shape are often shared by various types of models regardless of the vehicle class or the concept of interior design, for the purpose of reducing the number of parts and the like. Therefore, on models that do not require much support or models with a thin cushion pad, the cushion pad is deformed around the buttocks where the seating load is most applied, and the gap between the occupant and the side wall plate is reduced, resulting in a cushioning function. And the occupant feels cramped / foreign, which causes a problem of deteriorating the occupant's riding comfort.

Therefore, in order to remove the feeling of cramp and foreign body,
As shown in FIG. 4A, a countermeasure for notching the left and right sides of the side wall plate 6b has been taken, and the cushion panel 6 having the notch 7 in the side wall plate 6b has been adopted.

In this way, the problem in a model that does not require much supportability or a model in which the cushion pad is thin is solved. However, in the model requiring supportability, since the portion indicated by reference numeral 7 is cut off, the displacement of the seating position of the occupant due to the lateral G is received by the cushion pad. In this case, since the side wall plate is cut off as described above, the cushion pad is not restricted at all, and it is very difficult to maintain a posture during driving.

However, if the cushion panel, which is a large part, is set as a dedicated part for each vehicle class or interior design concept, not only will the number of parts increase and the cost will increase, but also the work efficiency will decrease in the mixed flow line. Occurs.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a vehicle seat in which a cushion panel of the same shape can be shared by a plurality of vehicle types while providing supportability suitable for the concept of a vehicle model or an interior design. The purpose is to provide. In order to achieve the above object, the following solutions have been proposed. That is, the cushion pad 5 and
Cushion panel 6 for placing cushion pad 5
And a skin material 9 for covering the surface and side surfaces of the cushion pad 5, and constitutes the seat cushion 2. The cushion panel 6 is provided with a side wall plate 6 b around it, and cutouts 7 are provided on both sides rear of the side wall plate 6 b. Car seats 1
In this embodiment, an auxiliary member 8 for restricting deformation of the cushion pad 5 due to a sitting load is buried in a position corresponding to the notch 7 in the cushion pad 5.

[0010]

By burying the auxiliary member 8 at a position corresponding to the notch 7 provided in the side wall plate 6b in the cushion pad 5, the seating position of the occupant will be displaced in the lateral direction due to the lateral G during turning. However, since the auxiliary member 8 prevents the cushion pad 5 from being deformed, the posture of the occupant 11 can be firmly supported.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. FIG. 1 shows an automobile seat 1 to which one embodiment of the present invention is applied. The vehicle seat 1 mainly includes a seat cushion 2, a seat back 3, and a headrest 4. As shown in FIGS. 2 and 3, the seat cushion 2 includes a cushion pad 5, a cushion panel 6 on which the cushion pad 5 is mounted, and a skin material 9 covering the surface and side surfaces of the cushion pad 5. Have been. The cushion pad 5 has a raised portion 5a extending in the front-rear direction in order to support the lateral side of the occupant.

The cushion pad 5 is made of a relatively soft and elastic material in order to improve sitting comfort. In general, a material such as a urethane resin is foamed in a mold and molded. As shown in FIG. 3, the cushion panel 6 is laterally wider than the cushion panel 6 in order to cover the end 6c of the side wall plate 6b. The shape protrudes to the side.

FIG. 6A shows a position corresponding to the notch 7 provided in the side wall plate 6b in the cushion pad 5.
As shown in (b), the auxiliary member 8 is embedded. One embodiment of the auxiliary member 8 is shown in FIG. The auxiliary member 8 is 2
It is a U-shaped wire member composed of a lateral side portion 8a of a book and a connecting portion 8b connecting them, and is arranged in a cushion pad so that the U-shape opens forward around the occupant 11, and is integrally foamed. It is embedded in the cushion pad during molding.
The front end of the lateral portion 8a is bent downward at the bent portion 8c to form a vertical portion 8d extending downward, and further folded back at the bent portion 8e. Further, as is apparent from FIGS. 3 and 8, the auxiliary member 8, particularly the lateral portion 8a
Are arranged at positions higher than the end 6c of the cushion panel. By doing so, a composite elastic support by the auxiliary member 8 and the cushion pad 5 can be obtained regardless of the side wall plate 6b.

The advantages of using a wire material include that it can be easily formed into an arbitrary shape, and that it is made of metal, so that the temperature can be easily controlled when integrally forming and foaming. At the same time, as will be understood from the operation description described later, there is an advantage that elastic properties combined with the cushion pad can be easily obtained.

The shape of the auxiliary member 8 is not limited to the shape described above. The object of the present invention can be satisfied if it is provided at a position corresponding to the cutout portion 7 provided on the side wall plate 6b of the cushion panel 6 and supports the occupant 11. As another example, as shown in FIG. 7, there is a band-shaped plate member 10 arranged so as to open forward around a passenger 11.

As an embedding method, the auxiliary member is held in advance in the foam molding die of the cushion pad 5,
At the same time, a method of integrally molding may be used, or a method of inserting into the cushion pad 5 after molding may be used. If inserted after pad molding, to prevent positional displacement over time,
Means such as closing the insertion port are required.

The supportability obtained as an effect of the present invention can be appropriately adjusted by changing the thickness or thickness of the auxiliary member and the distance between the auxiliary member and the occupant 11.

However, it is necessary to consider the riding comfort of the occupant 11 regarding the position where the auxiliary member is embedded. The thickness of the cushion pad 5 of the automobile is different depending on the vehicle type and the like. If the auxiliary member is buried at a position too close to the pad surface in the thickness direction, the occupant 11 is given a foreign-body sensation and the ride comfort is deteriorated. I do.

Further, with respect to the arrangement in the width direction, an optimal position is selected in order to achieve the support of the occupant 11 which is the object of the present invention and to improve the riding comfort of the occupant 11,
In this embodiment, as shown in FIG. 6 (a), it is preferable to arrange as appropriate as possible so as to be as close as possible to the side wall plate 6b of the cushion panel 6 and not to feel a foreign object in a normal sitting state.

As shown in FIGS. 5 and 7, in the above-described embodiment, the tip of the auxiliary member is bent. By bending, the auxiliary member and the cushion pad 5 are firmly engaged and fixed. For this reason, the lateral portion 8a of the auxiliary member receiving the load of the occupant undergoes elastic deformation curved in an arc shape in the load direction, that is, in the vehicle width direction. By being integrated with the above, the elastic deformation can be determined appropriately. If the bent portion moves in the vehicle width direction due to the seating load, the above elastic deformation cannot be secured. In this way, an elastic human body support in which the cushion pad and the auxiliary member are combined is realized. In addition to the above, there are other effects that the positional displacement with time can be prevented, and that the auxiliary member can be easily fixed when integrally foamed with the cushion pad 5. Regarding the bending method, by changing the bending shape and direction, the occupant 11
Various methods that do not hinder the ride comfort of the vehicle can be applied.

[0021]

As described above, the seat cushion 2 of the automobile seat 1 to which the present invention is applied is provided with the notch portions 7 on the cushion panel 6 having the notches 7 on both sides rear of the surrounding side wall plate 6b. The cushion pad 5 in which the auxiliary member 8 is buried is placed at a position corresponding to the above, and is covered with a skin material 9. Therefore, the cut-out cushion panel can be used as a common component for a plurality of models, which is effective for reducing the number of components and cost. At the same time, handling in the mixed flow line is simplified, which is advantageous in terms of improving productivity. Even if a new mold for the cushion panel is not required, support can be imparted only by arranging the auxiliary member corresponding to a portion having insufficient support due to the cutout.

Further, by adjusting the thickness, thickness and arrangement position of the auxiliary member to be embedded, the elastic deformation state of the auxiliary member itself can be selected, and a vehicle seat with arbitrarily changed supportability can be obtained.

Therefore, generally speaking, various automobile seats can be provided by using the cushion panel, which is a large part, as a common part and changing the cushion pad and the auxiliary member, thereby reducing costs and work efficiency. Can be improved.

Further, when the auxiliary member is buried in the soft and elastic cushion pad, the auxiliary member can be moved, so that the feeling of a foreign object when the occupant is displaced toward the auxiliary member can be reduced. Even if the auxiliary member is fixed to the cushion panel, the supportability can be imparted, but it is difficult to adjust the support force, and a large foreign object is felt when an external force is applied and the occupant is displaced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of an automobile seat of the present invention.

FIG. 2 is a perspective view showing a configuration of a seat cushion to which the present invention is applied.

FIG. 3 is a sectional view taken along line III-III of FIG.

FIG. 4A is a sectional view taken along the line ■ a- ■ a in FIG. 2;
(B) is a plan view of the cushion panel.

FIG. 5 is a perspective view showing an auxiliary member using a wire material.

6A and 6B show an arrangement state of an auxiliary member in a seat cushion, wherein FIG. 6A is a plan view and FIG. 6B is a left side view.

FIG. 7 is a seat cushion to which an auxiliary member using a band-shaped plate material is applied.

FIG. 8 is a diagram showing supportability against external force according to the present invention. (A) shows the state of the present invention, and (b) shows the state when the present invention is not applied. In addition, since this figure is for showing the difference in supportability, the skin material is omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automotive seat 2 Seat cushion 5 Cushion pad 6 Cushion panel 6b Side wall plate 7 Notch 8,10 Auxiliary member 9 Skin material

Claims (3)

[Claims] 1. A seat cushion in which a cushion pad is mounted on a cushion panel provided with a side wall plate around the periphery, and both sides of the side wall plate are notched, and the surface and side surfaces of the cushion pad are covered with a skin material. The vehicle seat according to claim 1, wherein an auxiliary member for restricting deformation of the cushion pad due to a seating load is provided at a position corresponding to the cutout portion of the side wall plate in the cushion pad. Seat cushion structure of the seat. 2. The seat cushion structure for an automobile seat according to claim 1, wherein the auxiliary member is formed by using a wire material. 3. The seat cushion structure for an automobile seat according to claim 1, wherein the auxiliary member is formed using a band-shaped plate material.