JP2019024938A - Seat pad and chair seat - Google Patents

Abstract

To suppress crush of a ventilation groove when a crew sits.SOLUTION: A seat pad 1 has a seating surface 17 on which a crew sits, and includes a foam molding 11 composed of a synthetic resin material. The foam molding has a ventilation groove 16 formed therein for air conditioning. The ventilation groove is formed on an attachment face 15 opposite to the seating surface in the foam molding. A reinforcement sheet 18 is provided on the attachment face of the foam molding. The reinforcement sheet closes an opening of the ventilation groove in the attachment face.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seat pad and a seat.

  2. Description of the Related Art Conventionally, a configuration in which a ventilation groove for air conditioning is formed in a foam molded body is known as a pad for a sheet having a seating surface on which an occupant is seated and a foam molded body made of a synthetic resin material.

JP 2007-2222397 A

  However, conventionally, when the occupant is seated, the ventilation groove is crushed, and the desired air conditioning effect may 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 pad and a seat that can prevent the ventilation groove from being crushed when a passenger is seated.

In order to solve the above-mentioned problems and achieve such an object, the seat pad of the present invention has a seating surface on which an occupant sits, and includes a foamed molded body made of a synthetic resin material. The air-conditioning ventilation groove is formed on the mounting surface on the opposite side of the seating surface and reinforced to the mounting surface of the foam molding. A sheet is provided, and the reinforcing sheet closes an opening of the ventilation groove on the mounting surface.
The seat of the present invention comprises a seat pad of the present invention, a frame-like frame disposed on the mounting surface of the foam molded body, an inner opening of the frame, and the mounting surface of the foam molded body. And a supporting wire.

According to the present invention, since the reinforcing sheet closes the opening of the ventilation groove on the mounting surface of the foamed molded body, the opening of the ventilation groove on the mounting surface is held by the reinforcing sheet, and the seating of the occupant Sometimes, even if the mounting surface is deformed and the ventilation groove is crushed, a tensile force is generated in the reinforcing sheet. Therefore, the inner surface of the ventilation groove can be prevented from being deformed over the entire region in the depth direction, and the ventilation groove can be prevented from being crushed.
In addition, by providing a reinforcing sheet on the mounting surface, such an effect can be achieved.For example, it can be easily manufactured compared to fitting a pipe into a ventilation groove, Good riding comfort can be ensured.

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

The reinforcing sheet may include a press felt.
In this case, since the reinforcing sheet includes the press felt, the above-described effects can be easily achieved while suppressing an increase in weight.

  Further, the reinforcing sheet may be disposed on at least a part of a portion of the attachment surface of the foamed molded body where the ventilation groove and the wire overlap in a plan view.

  In this case, the reinforcing sheet is disposed on at least a part of the portion of the mounting surface of the foamed molded body where the ventilation groove and the wire overlap in a plan view. The opening portion of the portion where a large compressive force is easily applied is sometimes held by the reinforcing sheet, and the collapse of the ventilation groove can be further reliably suppressed.

  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 a seat seat shown as one embodiment concerning the present invention. It is an AA arrow directional cross-sectional view of the seat seat shown in FIG.

Hereinafter, an embodiment of a seat pad and a seat according to the present invention will be described with reference to FIGS. 1 and 2.
For example, the seat 10 attached to 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 sheet pad 1 includes a foam molded body 11 made of a synthetic resin material. The foam molding 11 is obtained by foam molding a foam stock solution containing a polyol, for example, a polyisocyanate such as diphenylmethane diisocyanate (MDI), a crosslinking agent, a foaming agent, and a catalyst. In the illustrated example, the foamed molded body 11 is integrally formed of the same material as a whole.

  The seat pad 1 includes a seating surface 17 on which an occupant seated on the seat abuts. The seat pad 1 can be used as a cushion pad and a back pad. As a part of the occupant in contact with the seating surface 17, a hip, a thigh, or a back can be cited.

When the seat pad 1 is used as a cushion pad, the seating surface 17 faces upward in the vertical direction with the seat pad 1 mounted on the vehicle, and the passenger's load is applied to the seat pad 1 from above. Works. Further, when the seat pad 1 is used as a back pad, the seating surface 17 faces the front side of the vehicle with the seat pad 1 mounted on the vehicle, and the occupant's load is on the front side of the seat pad 1. Acts from.
Hereinafter, the seat pad 1 used as a 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 that are continuous with the main body portion 12 from both sides in the left-right direction X, and an attachment portion 14 that protrudes rearward from the main body portion 12. And a seating surface 17.
In the seating surface 17, first boundary grooves 11 a extending in the front-rear direction Y are formed separately at the boundary portion between the pair of side portions 13 and the main body portion 12, and at the boundary portion between the main body portion 12 and the attachment portion 14. A second boundary groove 11b extending in the left-right direction X is formed.
The main body 12 has a rectangular shape with a pair of sides extending in the front-rear direction Y and the remaining pair of sides extending in the left-right direction X orthogonal to the front-rear direction Y in a top view. In the illustrated example, the planar view shape of the main body 12 is a rectangular shape that is long in the front-rear direction Y.

  A ventilation groove 16 for air conditioning is formed in the foamed molded body 11. The ventilation groove 16 is formed in the mounting surface 15 opposite to the seating surface 17 in the foamed 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 communicates with the outside of the seating surface 17 through a through hole 17 a formed in the seating surface 17.

  The ventilation groove 16 includes a lateral groove 16a continuously extending over the entire length in the left-right direction X of the main body portion 12, a pair of left and right outer grooves 16b extending forward from both ends of the lateral groove X in the left-right direction X, and left and right in the lateral groove 16a. An inner groove 16c extending forward from the center in the direction X, and a rear groove 16d extending rearward from a portion shifted in the left-right direction X from the inner groove 16c in an intermediate portion in the left-right direction X of the lateral groove 16a. Prepare. 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 disposed in a portion of the main body 12 that is located behind the central portion in the front-rear direction Y. The outer groove 16 b and the inner groove 16 c are disposed across the center in the front-rear direction Y of the main body 12 in the front-rear direction Y.
The lateral grooves 16a, the outer grooves 16b, the inner grooves 16c, and the rear grooves 16d have the same groove width. The horizontal grooves 16a, the outer grooves 16b, the inner grooves 16c, and the rear grooves 16d have the same depth.

  It should be noted that the position of the outer groove 16b, the inner groove 16c and the rear groove 16d in the left-right direction X, the position of the lateral groove 16a in the front-rear direction Y, and the number of the lateral grooves 16a, outer grooves 16b, inner grooves 16c and rear grooves 16d. Is not limited to this embodiment, and may be changed as appropriate. For example, the lateral groove 16a may be disposed in a portion of the main body portion 12 that is 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 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 may be adopted.

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

Here, the seat pad 1 is attached to the vehicle via a rectangular frame 21. The frame 21 is formed of, for example, a metal material. The frame 21 spans the boundary portion between the main body portion 12 and the mounting portion 14, the pair of left and right side portions 13, and each portion where the front end portion of the main body portion 12 is positioned, of the mounting surface 15 of the foamed molded body 11. It is arranged integrally. Note that the frame 21 is not limited to a rectangular frame shape, and may be changed as appropriate, for example, a circular frame shape.
The frame 21 is provided with a first wire 22 and a second wire 23 that divide the inner openings of the frame 21 in a lattice shape and support the mounting 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 numbers and positions of the first wires 22 and the second wires 23 are not limited to the present embodiment and may be changed as appropriate.

The first wire 22 extends in the left-right direction X and connects a pair of left and right vertical portions 21 a extending in the front-rear direction Y of the frame 21. In the illustrated example, the first wire 22 connects the central portions in the front-rear direction Y of the vertical portion 21 a to each other, and is positioned over the entire region in the left-right direction X at the central portion of the main body portion 12 in the front-rear direction Y.
The second wire 23 extends in the front-rear direction Y, and connects a pair of front and rear lateral portions 21 b extending in the left-right direction X of the frame 21. In the illustrated example, two second wires 23 are arranged so as to divide the inner opening of the frame 21 into approximately three equal parts in the left-right direction X. The 2nd wire 23 is located over the whole area of the front-back direction Y except the front-end edge part among the main-body parts 12. FIG. Between the two second wires 23, the inner groove 16c and the rear groove 16d in the ventilation groove 16 are located.

  In the present embodiment, the reinforcing sheet 18 is disposed on the mounting surface 15 of the foam molded body 11. The reinforcing sheet 18 closes the opening of the ventilation groove 16 in the mounting surface 15 of the foamed molded body 11. Examples of the reinforcing sheet 18 include a metal plate, a resin plate, a press felt, a felt, and a nonwoven fabric. The reinforcing sheet 18 is bonded to the mounting surface 15 of the foamed molded body 11.

  The reinforcing sheet 18 is disposed on at least a part of a portion of the mounting surface 15 of the foamed 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 in the mounting surface 15 of the foamed molded body 11. In the illustrated example, the reinforcing sheet 18 has a rectangular shape that is long in the left-right direction X in plan view. The reinforcing sheet 18 is disposed on a part of the main body 12 in the mounting surface 15. The reinforcing sheet 18 is disposed over the entire area of the mounting surface 15 of the main body 12 except the front part. The reinforcing sheet 18 may be disposed over the entire area of the attachment surface 15 of the main body 12. In this case, the ventilation groove 16 can be more effectively prevented from being crushed.

  As described above, according to the seat pad 1 and the seat 10 according to the present embodiment, since the reinforcing sheet 18 closes the opening of the ventilation groove 16 in the mounting surface 15 of the foam molded body 11, the foam molding is performed. The opening of the ventilation groove 16 in the attachment surface 15 of the body 11 is held by the reinforcing sheet 18, and even when the occupant is seated, the attachment surface 15 side is deformed and the ventilation groove 16 is crushed. A 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 region in the depth direction, and it is possible to suppress the ventilation groove 16 from being crushed.

In addition, by providing the reinforcing sheet 18 on the mounting surface 15, such an operational effect can be achieved. For example, it is easier to manufacture compared to fitting a pipe into the ventilation groove 16. As well as being able to ensure good riding comfort.
Further, since the reinforcing sheet 18 closes the entire opening of the ventilation groove 16 in the mounting surface 15 of the foamed molded body 11, the collapse of the ventilation groove 16 can be reliably suppressed.

Further, since the reinforcing sheet 18 includes the press felt, the above-described effects can be easily achieved while suppressing an increase in weight.
Further, the reinforcing sheet 18 is disposed on at least a part of the portion of the mounting surface 15 of the foamed molded body 11 where the ventilation groove 16 and the first wire 22 and the second wire 23 overlap in a plan view. Therefore, the opening portion of the ventilation groove 16 where a large compressive force is easily applied when the occupant is seated is held by the reinforcing sheet 18, and the collapse of the ventilation groove 16 can be further reliably suppressed. .

  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-described embodiment, the seat pad 1 including the side portion 13 and the attachment portion 14 is shown. However, the present invention is applicable even to a seat pad that does not include these 13 and 14.
Moreover, in the said embodiment, although the reinforcement sheet | seat 18 showed the structure which obstruct | occluded the whole opening of the ventilation groove 16 in the attachment surface 15 of the foaming molding 11, although not restricted to this, for example, the foaming molding 11 of the foaming molding 11 is shown. The mounting surface 15 may be changed as appropriate, such as being disposed in at least a part of a portion where the ventilation groove 16 and the first wire 22 and the second wire 23 overlap in a plan view.

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Seat pad 10 Seat sheet 11 Foam molding 15 Mounting surface 16 Ventilation groove 17 Seating surface 18 Reinforcement sheet 21 Frame 22 1st wire (wire)
23 Second wire (wire)

Claims (5)

A seat pad having a seating surface on which an occupant is seated, a foam molded body made of a synthetic resin material, and having a ventilation groove formed on the foam molded body,
The ventilation groove is formed on the mounting surface opposite to the seating surface in the foamed molded body,
A reinforcing sheet is disposed on the mounting surface of the foamed molded body,
The sheet pad according to claim 1, wherein the reinforcing sheet closes an opening of the ventilation groove on the mounting surface.   2. The sheet pad according to claim 1, wherein the reinforcing sheet closes the entire opening of the ventilation groove on the mounting surface of the foamed molded body.   The pad for a sheet according to claim 1, wherein the reinforcing sheet includes a press felt. The seat pad according to any one of claims 1 to 3,
A frame-like frame disposed on the mounting surface of the foam molded article;
A seat that includes an inner opening of the frame and a wire that supports a mounting surface of the foamed molded body.   The reinforcing sheet is disposed on at least a part of a portion of the attachment surface of the foamed molded product where the ventilation groove and the wire overlap in a plan view. The listed seat.

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