JP2013233900A - Vehicle seat and method for manufacturing skin material thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain the smearing of a skin material during ventilation as much as possible by using a relatively simple structure.SOLUTION: A skin material 6S includes: a first portion 31 disposed on the sitting side of a seat component and having ventilation properties; a second portion 32 laminated on the first portion 31 and inhibiting the intrusion of s foamed resin material; and a passage 34 provided at the second portion 32 and allowing air passage. The cushion material is formed in a state that the skin material 6S is disposed in a cavity, a projecting portion 64 is disposed to face the passage 34, and a ventilation member 40 having a dimension large enough to cover the passage 34 and the ventilation properties is interposed between the passage 34 and the projecting portion 64. Thus the ventilation member 40 is integrated with the cushion material and the skin material 6S while covering the passage 34.

Description

  The present invention relates to a vehicle seat including a cushion material, a flow path portion of the cushion material (a portion through which air of a blower can pass), and a skin material that covers the cushion material, and a method for manufacturing the skin material.

As this type of vehicle seat, a vehicle seat having a seat cushion and a seat back is known (see Patent Document 1).
Each of the seat cushion and the seat back (seat constituent member) includes a cushion material and a skin material. The skin material is a planar member that can cover the cushion material.
The cushion material is an elastic member (made of foamed resin) that forms the outer shape of the seat, and can be molded by a molding device (first mold, second mold, cavity). Here, the first mold and the second mold are mold members that can be closed together. The cavity is a space that follows the shape of the cushion material, and is formed between the first mold and the second mold.
In the known technique, a skin material is disposed between a first mold and a second mold, and then a foamed resin material is foamed in the cavity, whereby the cushion material is molded and integrated with the skin material.

Here, in the above-described vehicle seat, an air blower is attached to the seat constituent member, and air can be blown toward the passenger.
At this time, the cushion member is provided with a flow path portion (a portion penetrating the cushion member in the thickness direction) so that the air of the blower can pass therethrough. The flow path portion can be formed simultaneously with the formation of the cushion material using the above-described forming apparatus. For example, a protruding portion (a portion following the outer shape of the flow path portion) is formed on the inner surface of the second mold. Next, by closing the first mold and the second mold, the protruding portion is pressed against the skin material while protruding toward the inner surface of the first mold. By foaming the foamed resin material in this state, the cushion material can be molded while forming the flow path portion by the protruding portion.

By the way, in the above-mentioned composition, it is desirable to constitute a skin material with a plurality of materials from a viewpoint of improvement in sheet performance.
For example, a skin material (planar shape) in which a surface material (corresponding to a first part), a ventilation material, and a backing material (corresponding to a second part) are laminated is used. The surface material is a surface material that forms the seating side of the surface material, and can be composed of leather provided with a through hole. The air-permeable material is a surface material having air permeability, and has substantially the same dimensions as the surface material. The backing is a low-breathable or non-breathable face material, and a plurality of through holes are provided to allow air to pass therethrough.

Next, the surface material, the air-permeable material and the backing material are integrated in this order while being laminated in this order (forms a skin material).
At this time, the ventilation material and the backing material are bonded together while marking the position of the through hole of the backing material on the ventilation material side. Next, after an adhesive is applied to the entire surface of the air-permeable material, it is adhered to the front material while aligning the through hole of the front material and the marking position (through hole of the back material).
Further, when the cushion material is molded, the above-described protruding portion is pressed against the through hole of the backing material to prevent the molten resin from flowing in. The back material prevents impregnation of the foamed resin material on the surface material side, so that the cushion material and the skin material can be integrated while maintaining the original properties (flexibility, etc.) of the skin material as much as possible.
And by covering the cushion material with the skin material, the air of the blower blows in from the through hole of the backing material and blows out from the through hole of the surface material while passing through the ventilation material (surface material with air permeability) Is done. At this time, the surface material can be kept clean by capturing dust and dirt in the air with the air-permeable material (the air-soiled skin material can be prevented).

JP 2008-142244 A

By the way, in the above-mentioned structure, a ventilation material is interposed between a surface material and a back material, and ventilation dirt of a surface material is prevented. However, since the air-permeable material is a surface material having the same dimensions as the front material, the air-permeable material may be disposed at a place where air blowing is not required (a place different from the air hole of the backing material). For this reason, the above-described configuration is not a configuration that can be easily adopted from the viewpoint of reducing the manufacturing cost of the sheet.
The present invention has been devised in view of the above points, and the problem to be solved by the present invention is to prevent as much as possible aeration contamination of the skin material with a relatively inexpensive configuration.

As means for solving the above-mentioned problems, the vehicle seat of the first invention has a seat constituent member such as a seat cushion or a seat back, and a blower arranged on the seat constituent member.
The seat component member has a cushion material made of foamed resin that forms the outer shape of the seat, a flow path portion of the cushion material through which air of the blower can pass, and a skin material that can cover the cushion material, and is blown from the blower. The air can be blown to the skin material side through the flow path portion. Then, the cushion material is molded in the cavity of the molding apparatus, and the flow path portion is formed at the protruding portion disposed in the cavity.

In the present invention, the above-mentioned skin material is disposed on the seating side of the seat component and has a first portion having air permeability, a second portion that is laminated on the first portion and prevents entry of the foamed resin material, It has two passage parts and a passage part through which air can pass. In this way, by preventing the intrusion of the foamed resin material by the second part as much as possible, the cushion material and the skin material can be integrated while maintaining the original properties (flexibility, etc.) of the skin material as much as possible.
In this type of configuration, it is desirable to prevent the skin material from being aerated with a relatively inexpensive configuration.

Therefore, in the present invention, the protruding portion is disposed facing the passage portion while the skin material is disposed in the cavity. Then, the ventilation member covers the passage part by molding a cushion material in a state where a ventilation member having a size sufficient to cover the passage part and having air permeability is interposed between the passage part and the protruding part. However, it was set as the structure integrated with a cushion material and a skin material.
In the present invention, dust and dust in the air of the blower can be captured by a ventilation member (a member having a relatively small area) having a size that covers only the passage portion.

The method for manufacturing the skin material of the second invention is a method for manufacturing the skin material of the first invention, and includes the following first step and second step.
First step: A hole through which air can pass is provided in the first part.
Second step: Adhesive is applied to the surface of the second part excluding the passage part and adhesively fixed to the first part while the passage part and the hole are arranged facing each other.
In the present invention, the first part and the second part can be bonded and fixed while the passage part and the hole are arranged facing each other (directly aligned). And since an adhesive agent is apply | coated to the surface of the 2nd site | part (relatively narrow range) except a passage site | part, the usage-amount of an adhesive agent can be reduced.

  According to the first aspect of the present invention, it is possible to prevent the skin material from being ventilated as much as possible with a relatively inexpensive configuration. According to the second invention, the skin material can be manufactured at a low cost by a relatively simple procedure.

It is a perspective view of a vehicle seat. It is sectional drawing of a part of seat back. (A) is a perspective view of the ventilation member which concerns on an Example, (b) is a perspective view of the ventilation member which concerns on a modification. It is sectional drawing of a part of shaping | molding apparatus after mold closing. It is sectional drawing of a part of shaping | molding apparatus in the middle of mold closing. It is sectional drawing of a ventilation member and a skin material. It is sectional drawing of the ventilation member and skin material after mold closing.

Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In each figure, reference numeral F is attached to the front of each member, reference numeral B is attached to the rear of each member, reference sign UP is provided above each member, and reference sign DW is provided below each member.
The vehicle seat 2 in FIG. 1 has a seat cushion 4, a seat back 6, and a headrest 8. Each of these seat constituent members includes a frame member (4F, 6F, 8F) that forms a seat skeleton, a cushion material (4P, 6P, 8P) that forms the outer shape of the seat, and a skin material (4S, 6S, 8S).
Here, the frame member (4F, 6F) is typically a substantially rectangular or substantially rectangular frame, and can support the cushion material (4P, 6P).

And the seat back 6 has the above-mentioned structure (6F, 6P, 6S), the air blower 10, and the flow path part 20 (refer to FIG.1 and FIG.2 for details of each member later).
In this embodiment, the air blower 10 is attached to the seat back 6 and communicates with the flow path portion 20 in the seat back 6. Then, the air blown from the blower 10 is blown out to the skin material 6S side through the flow path portion 20, but this type of configuration eliminates aeration dirt of the skin material 6S as much as possible by a relatively inexpensive configuration. It is desirable to be able to prevent it.
Therefore, in this embodiment, the air-soil stain on the skin material 6S is prevented as much as possible by an inexpensive configuration (the ventilation member 40) described later. Hereinafter, each configuration will be described in detail.

[Blower]
The air blower 10 of a present Example is a hollow box (short cylindrical shape), and incorporates a ventilation mechanism (refer FIG. 2).
As the blower mechanism, for example, a centrifugal mechanism (a mechanism that blows air in the centrifugal direction while sucking air from the apparatus axial direction) can be used. Examples of this type of air blowing mechanism include multi-blade fans (sirocco fans), plate fans, turbo fans, airfoil fans, and limit load fans.

[Cushion material]
The cushion material 6P is a substantially rectangular member that forms the outer shape of the seat, and includes a flow path portion 20 and a lid member 26 described later (see FIGS. 1 and 2).
Here, the material of the cushioning material 6P is not particularly limited, but a polyurethane foam (density: 10 kg / m ^{3 to} 60 kg / m ³ ) can be exemplified.
In the cushion material 6P (upright state) of this embodiment, the end portion (upper end portion, lower end portion, etc.) is bent toward the back of the seat. And the location (storage part) dented in the seating side rather than an edge part is formed in the cushion material 6P center, and the air blower 10 can be accommodated. And the back side of cushion material 6P (storage part) can be covered with a board member (made of resin).

(Flow path and lid member)
The flow path part 20 is a flow path which guides the ventilation of the air blower 10 to the seating side, and has a groove part 22 and a plurality of hole parts 24 (see FIG. 2).
The groove portion 22 is, for example, a substantially H-shaped (front view) recessed portion, and can be formed on the back surface of the cushion material 6P (in the storage portion). Each of the plurality of hole portions 24 is a through-hole penetrating the cushion material 6P in the thickness direction, and one end side opens to the seating side and the other end side opens to the groove portion 22.
The lid member 26 is a substantially rectangular member (as viewed from the front) that can cover the groove portion 22 and can be generally made of a non-breathable or low breathable material (foamed resin or the like).

[Skin material]
The skin material 6S is a bag-like member that can cover the cushion material 6P (see FIGS. 2, 6, and 7). The skin material 6S of the present embodiment has a first part 31 and a second part 32 (passage part 34).
The 1st site | part 31 is a site | part which is arrange | positioned at the seating side of the skin material 6S, and has air permeability. Moreover, the 2nd site | part 32 is a site | part arrange | positioned at the back surface side of the skin material 6S, and can prevent the penetration | invasion of the foamed resin material of the cushion material 6P at the time of shaping | molding.

(First part, second part)
The 1st site | part 31 can be comprised with the leather (natural leather, synthetic leather) provided with the hole H, and the fabric (woven fabric, knitted fabric, nonwoven fabric) provided with air permeability.
Moreover, the 2nd site | part 32 is a site | part laminated | stacked on the 1st site | part 31, and has the passage site | part 34 (refer FIG.6 and FIG.7). Here, the second portion 32 is made of a material that can prevent the intrusion of the foamed resin material (molten resin) of the cushion material 6P as much as possible. As this type of material, low permeability of the slab urethane: it may be exemplified (air permeability ^{0cc / cm 2 · sec~10cc / cm} 2 · sec) or cloth, leather or resin layer (film shape).
The passage part 34 is a substantially circular through-hole penetrating the second part 32 in the thickness direction (diameter dimension L1). In the present embodiment, a plurality of passage portions 34 (substantially circular) can be formed in the second portion 32 at appropriate intervals.

(Manufacture of skin material)
In the present embodiment, the skin material 6S can be manufactured in the first step and the second step (relatively simple procedure) (see FIGS. 6 and 7).
In the first step, a hole H through which air can pass is provided in the first portion 31 (made of leather) (in FIGS. 6 and 7, only one hole is provided with a reference for convenience).
At this time, one or a plurality of hole portions H can be provided in the first portion 31 according to the sheet configuration. Here, the formation method of the hole H is not particularly limited, and examples thereof include a punch mechanism (physical means) and a laser (optical means).

In the second step, an adhesive is applied to the surface of the second part 32 excluding the passage part 34 and bonded and fixed to the first part 31 while the passage part 34 and the hole H are arranged facing each other.
Here, in the case where the plurality of hole portions H are provided in the first portion 31, at least a part of the plurality of hole portions H can be disposed facing the passage portion 34. By carrying out like this, the air of the air blower 10 can be guide | induced to the seating side.
In the present embodiment, the first part 31 and the second part 32 can be bonded and fixed while the passage part 34 and the hole H are arranged facing each other (directly aligned) (interposing work of other members or other members). The work of marking on is omitted.) At this time, since the adhesive is applied to the surface of the second portion 32 (relatively narrow range) excluding the passage portion 34, the amount of adhesive used can be reduced. Therefore, according to the present embodiment, the skin material 6S can be manufactured at a low cost by a relatively simple procedure.
The type of adhesive is not particularly limited, but inorganic adhesives such as cement and ceramics, natural adhesives such as natural rubber and starch, semi-synthetic adhesives such as nitrocellulose, thermoplastic resins and thermosetting resins Examples thereof include resin-based adhesives such as rubber-based resin adhesives such as proloprene rubber and nitrile rubber, and composite adhesives such as elastomer.

[Ventilation member]
The ventilation member 40 is a planar member (a sheet shape, a mat shape, or the like) having a size sufficient to cover the passage portion 34, and can be formed of a material having air permeability (FIGS. 3A, 6 and 6). 7).
As the ventilation member 40 (material), high breathability slab urethane (air ^{permeability: 200cc / cm 2 · sec~400cc /} cm 2 · sec), formed by laminating a natural fiber (cotton material or the like) and synthetic fibers with a fiber laminate A laminate of body, fabric and leather can be exemplified.
The ventilation member 40 preferably has a rigidity (typically inferior to the skin material 6S) having a 25% ILD (hardness) of 50 N or less. 25% ILD (hardness) can be measured according to JIS K6400.

The ventilation member 40 of the present embodiment is a substantially cylindrical planar member (diameter dimensions L2, L2> L1) and has a facing portion 42 (see FIG. 6).
Here, by setting the dimension (diameter dimension L2) of the ventilation member 40 to a range in which the passage part 34 can be covered (a relatively narrow range), a plurality of or a single ventilation member 40 is partially attached to the skin material 6S. Will be placed.
In addition, although the specific dimension (diameter dimension L2) of the ventilation member 40 is not specifically limited, it should just be a dimension (substantially the same dimension) which does not fit in the passage part 34, and is typically 1 mm-from the passage part 34. It is preferably about 50 mm larger.
The facing part 42 is a part that can face the passing part 34, and is set to have lower rigidity than the other parts of the ventilation member 40. The facing part 42 of the present embodiment is a mortar-like part (thin circular part) and has a lower rigidity than the other part of the ventilation member 40. In the present embodiment, the diameter L3 of the facing portion 42 is set to be larger than the passage portion 34 (the passage portion 34 can be more reliably covered), which is suitable for the leakage of the foamed resin material of the cushion material 6P. Can be prevented.

[Modification]
Here, the ventilation member can take various configurations in addition to the above-described configuration (see FIG. 3B).
For example, in the ventilation member 40A of the modified example, a plurality of mortar-shaped portions 42a (substantially semi-elliptical when viewed from above) are formed, and one facing portion is formed as a whole. The mortar-shaped portions 42a can be arranged around the center of the ventilation member 40A at, for example, approximately 90 ° intervals.
In this way, the facing portion is configured by a plurality of mortar-shaped (thin) portions 42a, so that rigidity can be set lower than that of the other portions of the ventilation member 40A.

[Molding equipment]
The cushion material 6P of the present embodiment can be molded using the molding device 50 (first mold 51, second mold 52, cavity 54) (see FIGS. 4 and 5).
The first mold 51 and the second mold 52 (details will be described later) are mold members that can be closed to each other. The cavity 54 is a space portion that follows the outer shape of the cushion material 6P, and is formed between the first mold 51 and the second mold 52 (mold closed state).

(First type)
The first mold 51 includes a complementary mold 51a, a first shaft portion 51b, and a recessed portion 51c. The first mold 51 is complemented by the complementary mold 51a to be a substantially rectangular member as a whole (see FIG. 4).
The recessed portion 51c of the first mold 51 (complemented with the complementary mold 51a) is a recessed portion at the center of the first mold 51, and has a shape that follows the surface shape of the cushion material 6P.
The complementary mold 51a is a substantially rectangular member (a member that follows the side shape of the first mold) in a cross-sectional view. In the present embodiment, a first shaft portion 51b (bar shape) is disposed at a lower side portion of the first die 51, and the complementary die 51a can be rotated to the side portion of the first die 51 via the first shaft portion 51b. Install.
The complementary mold 51a is displaceable between a complementary state in which the first mold 51 is complemented and a deployed state in which the first shaft portion 51b is separated from the first mold 51. The expanded complementary mold 51a is rotated around the shaft member (after being separated from the first mold 51) and then is expanded in a substantially horizontal direction.

(Second type)
The second mold 52 is a member that can be closed to the first mold 51, and includes a first movable mold 52a, a second movable mold 52b, and a second shaft portion 52c (bar shape) (see FIG. 4).
The first movable mold 52a is a substantially rectangular member, and can be moved up and down (closer to or away from the second mold 52). The back surface of the first movable mold 52a has a shape that follows the back surface shape (a part of the center portion) of the cushion material 6P.
The second movable mold 52b (detailed later) is a crank-shaped (cross-sectional view) member, and the movable mold back surface has a shape that follows the back surface shape (exclusively the side portion) of the cushion material 6P.
In the present embodiment, the second shaft portion 52c is disposed on the upper side portion of the first die 51, and the second movable die 52b is rotatably attached around the second shaft portion 52c. The second movable mold 52b rotates around the second shaft portion 52c, so that the storage state disposed in the first mold 51 (recessed portion 51c) and the state extracted from the first mold 51 are provided. It can be displaced between.

Here, the second movable mold 52b of the present embodiment has a crank shape (a shape extending toward the first mold after extending in the recessed portion), and includes a first flat plate portion 61, a second flat plate portion 62, It has the 3rd flat plate part 63 and the protrusion part 64 (refer FIG.4 and FIG.5).
The first flat plate portion 61 is a flat plate portion extending linearly from the second shaft portion 52c and can be tilted with respect to the first mold 51 (upper surface) with the second shaft portion 52c as a rotation center.
The second flat plate portion 62 is a portion bent at a right angle from the end of the first flat plate portion 61, and one surface side (side facing the complementary mold 51a) follows the back surface shape (side portion) of the cushion material 6P. Have a different shape. The 2nd flat plate part 62 is extended perpendicularly | vertically toward the recessed part 51c by making the 2nd movable mold | type 52b into an accommodation state.
The third flat plate portion 63 is a portion that is bent at a right angle from the end of the second flat plate portion 62, and has a shape that follows the back surface shape of the cushion material 6P (the other portion of the central portion). The 3rd flat plate part 63 is provided in the 1st movable mold 52a, extending toward the center of the recessed part 51c by making the 2nd movable mold 52b into an accommodation state. And the back surface of the 3rd flat plate part 63 and the back surface of the 1st movable mold | type 52a become flat shape, and it is set as the shape which followed the back surface shape of the cushioning material 6P.
Each of the plurality of protruding portions 64 is a cylindrical portion that follows the flow path portion 20. The plurality of projecting portions 64 are disposed so as to project from the third flat plate portion 63 toward the first mold 51 by placing the second movable mold 52b in the housed state (arranged so as to be able to contact the skin material 6S).

[Cushion material molding work]
With reference to FIGS. 4-7, in the shaping | molding apparatus 50, it integrates with the skin material 6S, shape | molding the cushion material 6P.
In the present embodiment, the skin material 6S is attached to the back surface of the first mold 51 while being disposed in the cavity 54 (see FIG. 5). At this time, the second portion 32 (passage portion 34) is exposed to the cavity 54 side while the first portion 31 is brought into contact with the first mold 51.
Next, the second movable mold 52b is rotated around the second shaft portion 52c and closed to the first mold 51, and then the second movable mold 52b is lowered and closed to the first mold 51 (see FIG. 4). reference).
At this time, the second flat plate portion 62 is disposed in the recessed portion 51c while the first flat plate portion 61 is tilted toward the first mold 51 side. Then, the cavity 54 can be formed between the first mold 51 and the second mold 52 by contacting the first movable mold 52 a with the third flat plate portion 63 facing the first mold 51 (back surface). .

(Intervention work of ventilation member)
With reference to FIGS. 4 to 7, the second movable mold 52 b is closed, and the protruding portion 64 is brought into contact with the passage portion 34, thereby preventing leakage of the foamed resin material from the passage portion 34.
At this time, there is a concern that the protruding portion 64 excessively presses the skin material 6S, and a part of the skin material 6S is recessed and deformed toward the first mold 51 (sitting side).
Therefore, in this embodiment, the ventilation member 40 (a member that is typically less rigid than the skin material 6S) is disposed between the passage portion 34 and the protruding portion 64 while being disposed on the passage portion 34 (FIG. 4). And see FIG. Then, the facing part 42 (part having lower rigidity) is arranged (covered) on the passing part 34.
By doing so, it is possible to suppress the dent deformation of the skin material 6S by absorbing the pressing force of the protruding portion 64 by the ventilation member 40 (low rigidity member). At this time, since the facing portion 42 (lower rigidity portion) is disposed facing the passage portion 34, the dent deformation of the skin material 6S can be more reliably suppressed. By setting the diameter L3 of the facing portion 42 to be larger than the passage portion 34, leakage of the foamed resin material can be suitably prevented.

Next, after the foamed resin material is injected from the second mold 52 into the cavity 54, the foamed resin material is foamed. When the foamed resin material is cured, the skin material 6S is integrally attached to the surface of the cushion material 6P while molding the cushion material 6P.
At this time, in the second part 32, the cushioning material 6P and the skin material 6S are suitably kept while maintaining the original properties of the skin material 6S as much as possible by preventing the foamed resin material from entering the first part 31 as much as possible. Can be integrated.
Simultaneously with the formation of the cushion material 6P, the flow path portion 20 can be formed in the cushion material 6P by the second mold 52 (projecting portion 64).

In this embodiment, the cushion material 6P and the skin material 6S are integrated with the ventilation member 40 interposed between the cushion material 6P and the skin material 6S (see FIG. 2).
Thus, the ventilation member 40 is integrated with the cushion material 6P and the skin material 6S while covering the passage portion 34. In this embodiment, since it is not necessary to bond and fix the skin material 6S and the ventilation member 40, the manufacturing process can be simplified and the amount of adhesive used can be further reduced (a cheaper sheet configuration can be obtained). .

[Installation work of blower]
With reference to FIG. 3, the air blower 10 is fixed to the frame member 6 </ b> F while being disposed in the cushion material 6 </ b> P (storage portion).
And the air blower 10 can be connected to the flow path part 20 by connecting the air blower 10 to the flow path part 20 via the duct member 54. Thus, the air blown from the blower device 10 can be blown to the occupant through the flow passage unit 20 by communicating the flow passage unit 20 with the blower device 10.
In the present embodiment, the air blown from the blower 10 passes through the ventilation member 40 from the flow path portion 20 and is guided to the skin material 6S (passage portion 34). At this time, there is a concern that dust and dust together with air flow from the flow path portion 20 to the skin material 6S (the first portion 31 side).
Therefore, in this embodiment, the dirt and dust in the air of the blower device 10 are captured by the ventilation member 40 that covers the passage portion 34, thereby preventing the ventilation dirt of the skin material 6S as much as possible.

As described above, in the present embodiment, the ventilation member 40 (a member having a relatively small area) can prevent the skin material 6S from being contaminated with air as much as possible. For this reason, the number of parts of the sheet can be reduced by eliminating the need for interposing other members (such as a ventilation member) in the first part 31 and the second part 32.
Further, in this embodiment, the first part 31 and the second part 32 can be directly bonded when manufacturing the skin material 6S (the work of marking can be omitted). Moreover, since an adhesive agent is apply | coated to the surface of the 2nd site | part 32 (relatively narrow range) except the passage site | part 34, the usage-amount of an adhesive agent can be reduced.
For this reason, according to the present embodiment, it is possible to prevent aeration dirt of the skin material 6S as much as possible with a relatively inexpensive configuration.

The vehicle seat of the present embodiment is not limited to the above-described embodiment, and can take other various embodiments.
(1) In the present embodiment, the cylindrical ventilation member 40 is exemplified, but the configuration of the ventilation member is not limited. The ventilation member can have various shapes such as an elliptical shape and a polygonal shape in addition to a circular shape when viewed from the front, and can have various external shapes such as a columnar shape and a spherical shape in addition to a cylindrical shape.
(2) In the present embodiment, the example in which the facing part 42 is provided in the ventilation member 40 has been described. However, the facing part may be omitted.
(3) Moreover, in this embodiment, although the structure of the passage part 34 (a shape, the number of formation, a formation part, etc.) was illustrated, it is not the meaning which limits the structure of the passage part 34. FIG.
(4) In the present embodiment, the seat back 6 has been described as an example. However, the embodiment can be applied to various seat configurations such as the seat cushion 4.

DESCRIPTION OF SYMBOLS 2 Vehicle seat 4 Seat cushion 6 Seat back 8 Headrest 6P Cushion material 6F Frame member 6S Skin material 10 Blower device 20 Flow path part 31 First part 32 Second part 34 Passing part 40 Ventilation member 42 Face part 50 Molding apparatus

Claims (2)

A seat constituent member such as a seat cushion and a seat back, and a blower provided in the seat constituent member;
The seat constituent member has a cushion material made of foamed resin that forms a seat outer shape, a flow path portion of the cushion material through which air of the blower can pass, and a skin material that can cover the cushion material, The air blown from the blower can be blown to the skin material side through the flow path portion,
In the vehicle seat having a configuration in which the cushion material is molded in the cavity of the molding apparatus, and the flow path portion is formed at a protruding portion disposed in the cavity.
The skin material is disposed on the seating side of the seat component and has a first part having air permeability, a second part laminated on the first part to prevent intrusion of the foamed resin material, and the second part And a passage site through which air can pass,
While disposing the skin material in the cavity, the projecting portion is disposed facing the passage portion, and a ventilation member having a size sufficient to cover the passage portion and having air permeability is provided as the passage portion. By forming the cushion material in a state of being interposed between the projecting parts, the ventilation member is configured to be integrated with the cushion material and the skin material while covering the passage part. Sheet. A first step of providing a hole in the first part through which air can pass;
The second step of applying an adhesive to the surface of the second part excluding the passing part and adhering and fixing to the first part while arranging the passing part and the hole facing each other. Manufacturing method of skin material.

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