JP6994861B2 - Seat seat - Google Patents

Description

The present invention relates to a seat .

Conventionally, as a seat pad having a seating surface on which an occupant can be seated and having a foam molded body made of a synthetic resin material, a configuration in which a ventilation groove for air conditioning is formed in the foam molded body has been known.

JP-A-2007-222397

However, in the past, there was a risk that the ventilation groove would be crushed when the occupant was seated, and the desired air conditioning effect would not be exhibited.

The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a seat that can prevent the ventilation groove from being crushed when the occupant is seated.

In order to solve the above problems and achieve such an object, the seat of the present invention has a seating surface on which an occupant sits, and also includes a foam molded body made of a synthetic resin material. A seat pad having a ventilation groove for air conditioning, a frame-shaped frame arranged on a mounting surface opposite to the seating surface in the foam molded body, and an inner opening of the frame are partitioned. A wire that supports a mounting surface of the foam molded body is provided , the ventilation groove is formed on the mounting surface of the foam molded body, a reinforcing sheet is disposed on the mounting surface of the foam molded body, and the reinforcing sheet is provided. The opening of the ventilation groove on the mounting surface is closed, and the reinforcing sheet is applied to at least a part of the mounting surface of the foam molded body where the ventilation groove and the wire overlap in the plan view. Disposed, the ventilation groove comprises a lateral groove extending in the left-right direction and a longitudinal groove extending in the front-rear direction from the lateral groove in the plan view of the mounting surface, and the wire is provided in the plan view of the mounting surface. A first wire extending in the left-right direction and a second wire extending in the front-rear direction are provided, the lateral groove and the first wire are separated from each other in the front-rear direction, and the vertical groove and the second wire are separated from each other in the left-right direction. Separately, in a plan view of the mounting surface, the lateral groove and the second wire intersect each other, and the vertical groove and the first wire intersect each other .

According to the present invention, since the reinforcing sheet closes the opening of the ventilation groove on the mounting surface of the foam molded body, the opening of the ventilation groove on the mounting surface is held by the reinforcing sheet, and the occupant is seated. Occasionally, even if the mounting surface side is deformed and the ventilation groove is crushed, a tensile force is generated on the reinforcing sheet. Therefore, it is possible to suppress the deformation of the inner surface of the ventilation groove over the entire area in the depth direction, and it is possible to suppress the collapse of the ventilation groove.
Moreover, since such an action and effect are obtained by arranging the reinforcing sheet on the mounting surface, it can be manufactured more easily than, for example, by fitting a pipe into a ventilation groove. Good ride comfort can be ensured.
Since the reinforcing sheet is disposed on at least a part of the mounting surface of the foam molded body where the ventilation groove and the wire overlap in the plan view, the ventilation groove has a large compression when the occupant is seated. The opening of the portion where the force is easily applied is held by the reinforcing sheet, and the collapse of the ventilation groove can be suppressed more reliably.

Here, the reinforcing sheet may close the entire opening of the ventilation groove on the mounting surface of the foam molded product.
In this case, since the reinforcing sheet closes the entire opening of the ventilation groove on the mounting surface of the foam molded body, it is possible to surely prevent the ventilation groove from being crushed when the occupant is seated.

Further, the reinforcing sheet may contain press felt.
In this case, since the reinforcing sheet contains the press felt, the above-mentioned action and effect can be easily achieved while suppressing the increase in weight.

According to the present invention, it is possible to prevent the ventilation groove from being crushed when the occupant is seated.

It is a top view of the seat shown as one Embodiment which concerns on this invention. FIG. 3 is a cross-sectional view taken along the line AA of the seat shown in FIG. 1.

Hereinafter, an embodiment of a seat pad and a seat seat according to the present invention will be described with reference to FIGS. 1 and 2.
For example, a seat seat 10 mounted on a vehicle such as an automobile includes a seat pad 1, a frame 21, a first wire (wire) 22 and a second wire (wire) 23.
The seat pad 1 includes a foam molded body 11 made of a synthetic resin material. The foam molded product 11 is obtained by foam molding a foaming stock solution containing a polyol, for example, a polyisocyanate such as diphenylmethane diisocyanate (MDI), a cross-linking agent, a foaming agent, and a catalyst. In the illustrated example, the foam molded body 11 is integrally formed of the same material as a whole.

The seat pad 1 includes a seating surface 17 with which an occupant seated on the seat abuts. The seat pad 1 can be used as a cushion pad and a back pad. The parts of the occupant that come into contact with the seating surface 17 include the buttocks and the thighs, or the back.

When the seat pad 1 is used as a cushion pad, the seating surface 17 faces the upper side in the vertical direction with the seat pad 1 mounted on the vehicle, and the load of the occupant is applied to the seat pad 1 from the upper side. It works. When the seat pad 1 is used as the back pad, the seating surface 17 faces the front side of the vehicle with the seat pad 1 mounted on the vehicle, and the load of the occupant is applied to the seat pad 1 on the front side. Acts from.
Hereinafter, the seat pad 1 used as the cushion pad will be described as an example.

The foam molded body 11 of the seat pad 1 includes a main body portion 12, a pair of left and right side portions 13 connected to the main body portion 12 from both sides in the left-right direction X, and a mounting portion 14 projecting rearward from the main body portion 12. It also has a seating surface 17.
On the seating surface 17, first boundary grooves 11a extending in the front-rear direction Y are separately formed at the boundary portion between the pair of side portions 13 and the main body portion 12, and the boundary portion between the main body portion 12 and the mounting portion 14 is formed separately. , A second boundary groove 11b extending in the left-right direction X is formed.
The main body portion 12 exhibits a rectangular shape in which a pair of side portions extend in the front-rear direction Y and the remaining pair of side portions extend in the left-right direction X orthogonal to the front-rear direction Y in a top view. In the illustrated example, the plan view shape of the main body portion 12 is a rectangular shape long in the front-rear direction Y.

A ventilation groove 16 for air conditioning is formed in the foam molded body 11. The ventilation groove 16 is formed in the mounting surface 15 on the opposite side of the seating surface 17 in the foam molded body 11. The ventilation groove 16 is formed in the main body portion 12. The ventilation groove 16 communicates with the air supply source side and also communicates with the outside of the seating surface 17 through the through hole 17a formed in the seating surface 17.

The ventilation groove 16 includes a lateral groove 16a extending continuously over the entire length of the lateral groove 16 in the main body 12, a pair of left and right outer grooves 16b extending forward from both ends of the lateral groove 16a in the lateral direction X, and left and right in the lateral groove 16a. An inner groove 16c extending forward from the central portion of the direction X and a rear groove 16d extending rearward from a portion displaced in the left-right direction X from the inner groove 16c in the intermediate portion of the lateral groove 16a in the left-right direction X. Be prepared. The direction in which the outer groove 16b extends in the front-rear direction Y from the lateral groove 16a and the direction in which the inner groove 16c extends in the front-rear direction Y from the lateral groove 16a may be reversed.

The lateral groove 16a is arranged in a portion of the main body 12 located behind the central portion in the front-rear direction Y. The outer groove 16b and the inner groove 16c are arranged so as to straddle the central portion of the main body portion 12 in the front-rear direction Y in the front-rear direction Y.
The groove widths of the lateral groove 16a, the outer groove 16b, the inner groove 16c, and the rear groove 16d are the same as each other. The depths of the lateral groove 16a, the outer groove 16b, the inner groove 16c, and the rear groove 16d are also equal to each other.

The positions of the outer groove 16b, the inner groove 16c, and the rear groove 16d in the left-right direction X, the positions of the lateral groove 16a in the front-rear direction Y, and the number of each of the lateral groove 16a, the outer groove 16b, the inner groove 16c, and the rear groove 16d. Is not limited to this embodiment and may be appropriately changed. For example, the lateral groove 16a may be arranged in a portion of the main body 12 located in front of the central portion in the front-rear direction Y. As the outer groove 16b and the inner groove 16c, a configuration may be adopted in which the central portion of the main body portion 12 in the front-rear direction Y does not straddle the front-rear direction Y.

The groove widths of the lateral groove 16a, the outer groove 16b, the inner groove 16c, and the rear groove 16d may be different from each other, and the depths of the lateral groove 16a, the outer groove 16b, the inner groove 16c, and the rear groove 16d may be different from each other. May be good. The groove width and depth of the lateral groove 16a do not have to be the same over the entire length of the left-right direction X, and may be different at least in a part of the left-right direction X. The groove widths and depths of the outer groove 16b, the inner groove 16c, and the rear groove 16d may not be equal over the entire length of the front-rear direction Y, but may be different at least in a part of the front-rear direction Y.

Here, the seat pad 1 is attached to the vehicle via the rectangular frame-shaped frame 21. The frame 21 is made of, for example, a metal material. The frame 21 straddles each portion of the mounting surface 15 of the foam molded body 11 where the boundary portion between the main body portion 12 and the mounting portion 14, the pair of left and right side portions 13, and the front end portion of the main body portion 12 are located. It is arranged integrally. The frame 21 is not limited to a rectangular frame shape, and may be appropriately changed, for example, to have a circular frame shape.
A first wire 22 and a second wire 23 are attached to the frame 21 by partitioning the inner openings of the frame 21 in a grid pattern and supporting the attachment surface 15 of the foam molded body 11. The first wire 22 and the second wire 23 are made of, for example, a metal material. The number and position of each of the first wire 22 and the second wire 23 are not limited to this embodiment and may be appropriately changed.

The first wire 22 extends in the left-right direction X and connects a pair of left-right vertical portions 21a extending in the front-rear direction Y of the frame 21. In the illustrated example, the first wire 22 connects the central portions of the vertical portion 21a in the front-rear direction Y to each other, and is located at the central portion of the main body portion 12 in the front-rear direction Y over the entire area of the left-right direction X.
The second wire 23 extends in the front-rear direction Y and connects a pair of front-rear horizontal portions 21b extending in the left-right direction X of the frame 21. In the illustrated example, two second wires 23 are arranged so as to substantially divide the inner opening of the frame 21 into three equal parts in the left-right direction X. The second wire 23 is located in the main body portion 12 over the entire area in the front-rear direction Y excluding the front end edge portion. The inner groove 16c and the rear groove 16d in the ventilation groove 16 are located between the two second wires 23.

In the present embodiment, the reinforcing sheet 18 is arranged on the mounting surface 15 of the foam molded body 11. The reinforcing sheet 18 closes the opening of the ventilation groove 16 on the mounting surface 15 of the foam molded body 11. Examples of the reinforcing sheet 18 include metal plates, resin plates, press felts, felts, and non-woven fabrics. The reinforcing sheet 18 is adhered to the mounting surface 15 of the foam molded body 11.

The reinforcing sheet 18 is arranged on at least a part of the mounting surface 15 of the foam molded body 11 where the ventilation groove 16 and the first wire 22 and the second wire 23 overlap in a plan view. The reinforcing sheet 18 integrally closes the entire opening of the ventilation groove 16 on the mounting surface 15 of the foam molded body 11. In the illustrated example, the reinforcing sheet 18 exhibits a long rectangular shape in the left-right direction X in a plan view. The reinforcing sheet 18 is arranged on a part of the main body portion 12 of the mounting surface 15. The reinforcing sheet 18 is arranged over the entire area of the mounting surface 15 of the main body 12 except for the front portion. The reinforcing sheet 18 may be arranged over the entire area of the mounting surface 15 of the main body 12. In this case, it is possible to more effectively prevent the ventilation groove 16 from being crushed.

As described above, according to the seat pad 1 and the seat seat 10 according to the present embodiment, since the reinforcing sheet 18 closes the opening of the ventilation groove 16 on the mounting surface 15 of the foamed molded body 11, foam molding is performed. The opening of the ventilation groove 16 on the mounting surface 15 of the body 11 is held by the reinforcing sheet 18, and even if the mounting surface 15 side is deformed and the ventilation groove 16 is crushed when the occupant is seated, the reinforcing sheet 18 is used. Tensile force will be generated. Therefore, it is possible to suppress the deformation of the inner surface of the ventilation groove 16 over the entire area in the depth direction, and it is possible to suppress the collapse of the ventilation groove 16.

Moreover, since the reinforcing sheet 18 is provided on the mounting surface 15 to exert such an action and effect, it can be manufactured more easily than, for example, by fitting a pipe into the ventilation groove 16. At the same time, it is possible to surely secure a good ride comfort.
Further, since the reinforcing sheet 18 closes the entire opening of the ventilation groove 16 on the mounting surface 15 of the foam molded body 11, it is possible to reliably suppress the collapse of the ventilation groove 16.

Further, since the reinforcing sheet 18 contains the press felt, the above-mentioned action and effect can be easily achieved while suppressing the increase in weight.
Further, the reinforcing sheet 18 is disposed in at least a part of the mounting surface 15 of the foam molded body 11 where the ventilation groove 16 and the first wire 22 and the second wire 23 overlap in a plan view thereof. Therefore, the opening of the portion of the ventilation groove 16 where a large compressive force is likely to be applied when the occupant is seated is held by the reinforcing sheet 18, and the collapse of the ventilation groove 16 can be suppressed more reliably. ..

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above embodiment, the seat pad 1 provided with the side portion 13 and the mounting portion 14 is shown, but the present invention can be applied to a seat pad not having these 13 and 14.
Further, in the above embodiment, the reinforcing sheet 18 has shown a configuration in which the entire opening of the ventilation groove 16 on the mounting surface 15 of the foam molded body 11 is integrally closed, but the present invention is not limited to this, and for example, the foam molded body 11 is not limited to this. It may be appropriately changed such that the ventilation groove 16 and the first wire 22 and the second wire 23 are arranged at least a part of the overlapping portion of the mounting surface 15 in the plan view.

In addition, it is possible to appropriately replace the components in the above-described embodiment with well-known components without departing from the spirit of the present invention, and the above-mentioned modifications may be appropriately combined.

1 Seat pad 10 Seat seat 11 Foam molded body 15 Mounting surface 16 Ventilation groove 17 Seating surface 18 Reinforcing sheet 21 Frame 22 First wire (wire)
23 Second wire (wire)

Claims (3)

A seat pad having a seating surface on which an occupant can be seated, a foam molded body made of a synthetic resin material, and a ventilation groove for air conditioning formed in the foam molded body ,
In the foam molded body , a frame-shaped frame arranged on a mounting surface opposite to the seating surface, and a frame-shaped frame.
A wire that partitions the inner opening of the frame and supports the mounting surface of the foam molded article .
The ventilation groove is formed on the mounting surface of the foam molded body, and is formed.
A reinforcing sheet is arranged on the mounting surface of the foam molded body, and the reinforcing sheet is arranged.
The reinforcing sheet closes the opening of the ventilation groove on the mounting surface, and the reinforcing sheet closes the opening of the ventilation groove.
The reinforcing sheet is disposed on at least a part of the mounting surface of the foam molded body where the ventilation groove and the wire overlap in a plan view.
The ventilation groove includes a horizontal groove extending in the left-right direction and a vertical groove extending in the front-rear direction from the horizontal groove in a plan view of the mounting surface.
The wire includes a first wire extending in the left-right direction and a second wire extending in the front-rear direction in a plan view of the mounting surface.
The lateral groove and the first wire are separated from each other in the front-rear direction.
The flutes and the second wire are separated from each other in the left-right direction.
A seat seat characterized in that, in a plan view of the mounting surface, the lateral groove and the second wire intersect each other, and the vertical groove and the first wire intersect each other . The seat seat according to claim 1, wherein the reinforcing sheet closes the entire opening of the ventilation groove on the mounting surface of the foam molded body. The seat seat according to claim 1 or 2, wherein the reinforcing seat includes press felt.

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