JP2006082589A - Seat air conditioner for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat air conditioner for a vehicle applicable to a thin seat without sacrificing sitting comfort. <P>SOLUTION: A hanging groove 11 extending along a seat width direction is formed on an upper surface of an occupant sitting region of a cushion main body 5 of a seat cushion 2. A seat surface material 6 is drawn into the hanging groove 11 and the seat surface material 6 is fixed to a bottom part of the hanging groove 11 by a locking metal fitting, etc. An air blowing device 17 for air conditioning is arranged in a side support part 8. A blowoff part 21 of the air blowing device 17 is connected to an extension space 15 of the seat width direction generated between the hanging groove 11 and the seat surface material 6. The extension space 15 is made as an air conditioning air flow passage. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle seat air conditioner that performs air conditioning through a seat on which an occupant is seated.

  As a vehicle seat air conditioner, an air blower for air conditioning is arranged at the bottom of a seat cushion on which a passenger sits, and air conditioning is performed from a blowout hole that penetrates the seat skin material through a flow path of conditioned air formed in the cushion body of the seat cushion. The thing which blows off air is devised (refer patent document 1).

The seat air conditioner is provided with a storage space for disposing the blower at the bottom of the cushion body (bat member), and a plurality of branched flows that connect the blowout part of the blower and the blowout hole of the seat skin material. A path is formed in the cushion body. The conditioned air blown out from the blowout holes is applied to the occupant seated on the seat.
JP 2004-8334 A

However, in this conventional seat air conditioner, a blower is disposed at the bottom of the cushion body of the seat cushion, and a plurality of flow paths are formed in the cushion body to connect the blower and the blowout holes of the seat skin material. Therefore, in order to ensure a sufficient flow area of the conditioned air while maintaining the seating comfort of the seat, it is necessary to increase the thickness of the cushion body, and it is difficult to apply to a thin seat.
In recent years, a thin seat may be desired in relation to the seat design and the vehicle body layout, and even with such a thin seat, a seat air-conditioning device that can reliably perform air conditioning without sacrificing sitting comfort. I want to go out.

  Therefore, the present invention is intended to provide a vehicle seat air conditioner that can be applied to a thin seat without sacrificing the sitting comfort.

  In order to achieve the above object, an invention according to claim 1 is a vehicle seat air conditioner that distributes temperature-conditioned air to an occupant seating area, and includes a seat cushion (for example, a seat in an embodiment described later). In the cushion main body (for example, the cushion main body 5 in the embodiment described later) of the cushion 2), a fishing groove (for example, a fishing groove in the embodiment described later) that extends along the seat width direction on the upper surface of the occupant seating region. 11) is formed, a sheet skin material (for example, a sheet skin material 6 in an embodiment described later) is drawn into the fishing groove, and the sheet skin material is locked to the bottom of the fishing groove. Side support portion provided on the side of the cushion where the occupant is seated (for example, side support portion 8 in an embodiment described later) A blower for air conditioning (for example, a blower 17 in an embodiment described later) is disposed inside, and a blowing portion of the blower is formed as a space extending in the sheet width direction between the fishing groove and the sheet skin material. (For example, the extension space 15 in an embodiment described later) is connected, and the extension space is used as a flow path of the conditioned air.

  In the case of this invention, the conditioned air sent from the blower is supplied from the side support portion on the side of the occupant's seating position to the seating area of the occupant through the extension space between the fishing groove and the seat skin material. Become.

  The invention according to claim 2 is the invention according to claim 1, wherein a rigidity maintaining material having air permeability (for example, a rigidity maintaining material 9 in an embodiment described later) is partly extended in the extension space. The rigidity maintaining material itself is joined to the back surface of the seat covering material of the seat skin material from the extended space, and is joined to the back surface of the seat covering material of the seat skin material. did. In this case, the rigidity maintaining material joined to the back surface of the occupant seating position of the seat skin material can maintain an appropriate rigidity of the seat cushion at the time of occupant sitting, and the rigidity maintaining material is introduced into the extension space. It can be used as a flow path for guiding conditioned air to the back surface of the occupant seating position.

  According to a third aspect of the present invention, in the second aspect of the present invention, the exhaust passage through which the conditioned air introduced into the lower surface side of the seat skin material passes through the cushion body disposed on the lower surface side of the rigidity maintaining material. (For example, a discharge passage 19 in an embodiment described later) is formed, and heat exchange is performed between the conditioned air flowing through the rigidity maintaining material and the sheet skin material. In this case, heat exchange is performed between the conditioned air flowing through the rigidity maintaining material and the seat skin material, so that the seat skin material itself in contact with the occupant is directly warmed or cooled.

  According to a fourth aspect of the present invention, in the second aspect of the present invention, in the invention according to the second aspect, a blowout hole (for example, for blowing conditioned air introduced to the lower surface side of the sheet skin material to the outside of the sheet skin material) The blowout holes 25) in the embodiments described later are formed. In this case, the conditioned air introduced to the lower surface side of the seat skin material through the rigidity maintaining material is blown to the occupant side through the blowout hole.

  According to the first aspect of the present invention, the air blower is disposed on the side support portion shifted from the seating position of the seat cushion, and the conditioned air blown from the air blower is provided between the fishing groove and the seat skin material. Since the space is supplied to the occupant seating area through the extending space in the width direction, the air blower and the flow path can be efficiently arranged without increasing the thickness of the cushion body below the occupant seating position more than necessary. Therefore, according to the present invention, since the present invention can be applied to a thin seat without sacrificing the seating comfort of the occupant, the degree of freedom in seat design and vehicle body layout can be increased.

  Further, according to the invention described in claim 2, the rigidity maintaining material is joined to the back surface of the occupant seating position of the seat skin material, and appropriate rigidity is given to the occupant seating surface of the seat cushion by the rigidity maintaining material, Since air-conditioning air is guided from the extended space to the back of the occupant seating position using the air permeability of the rigidity maintaining material, there is no need to add dedicated parts or complicated processing to ensure reliable conditioned air flow to the occupant seating surface. Supply can be realized.

  According to the third aspect of the present invention, the seat skin layer itself can be reliably warmed or cooled without increasing the thickness of the cushion body.

  According to the fourth aspect of the present invention, it is possible to realize seat air conditioning in which air-conditioned air is blown from the seat skin layer without increasing the thickness of the cushion body.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In this specification, air heated or cooled for heating or cooling is referred to as “conditioned air”.
The vehicle seat air conditioner of this embodiment is provided in a seat cushion 2 portion of a seat 1 of a driver seat or a passenger seat. In FIG. 2, 3 is a seat back, and 4 is a headrest.

  The seat cushion 2 has a basic configuration in which a peripheral area of a cushion body 5 made of a pad material is covered with a seat skin material 6, and a side support portion in which a cross section bulges in a mountain shape on both sides of a seating portion 7 on which an occupant sits 8 is provided. A sheet-like rigidity maintaining material 9 (for example, a material called “space fabric”) having air permeability is joined to the back surface of the seating portion 7 of the seat skin material 6. For example, as shown in FIG. 5, the rigidity maintaining material 9 preferably has a structure in which high-rigid fibers a are arranged on the front and back sides, and the fibers a on the front and back sides are connected by thread-like fibers b that can expand and contract in the thickness direction. . When a material having such a structure is used, the surface has high rigidity while maintaining air permeability, and an appropriate elasticity that does not impair the function as a cushion can be obtained.

  Further, at a substantially center in the front-rear direction of the seating portion 7 of the seat cushion 2, as shown in FIGS. 1 and 2, a fishing portion 10 is provided in which a part of the seat skin material 6 is pulled and pulled inwardly of the cushion body 5. It has been. This fishing part 10 forms a fishing groove 11 extending in the seat width direction on the upper surface of the cushion body 5, draws the seat skin material 6 into the fishing groove 11, and as shown in FIG. It has a configuration in which the bottom is intermittently locked by the locking metal fitting 12.

  Specifically, as shown in FIG. 4, in the fishing portion 10, the end portions of the two sheet skin materials 6 in which the rigidity maintaining material 9 is joined to the back surface are sewn together with the resin plate 13 sandwiched therebetween. A plurality of portions of the resin plate 13 are locked and fixed to a fixing resin plate 14 embedded in the bottom of the fishing groove 11 by a C-shaped locking bracket 12. The latch metal 12 is deformed so as to close the C-shaped opening after being hooked on the resin plates 13 and 14 on the sheet skin material 6 side and the fishing groove 11 side. Further, the stitched portion of the sheet skin material 6 positioned in the fishing portion 10 is locked to the bottom portion of the fishing groove 11 by the locking fitting 12 as described above, but the end of the sewing portion is the locking fitting 12. An extension space 15 extending in the seat width direction is formed between the bottom of the fishing groove 11 after being locked. The extension space 15 forms a part of a flow path of conditioned air described later.

  In addition, an accommodation space 16 is provided inside the cushion body 5 of the side support portions 8 on both sides, and a blower device 17 for supplying conditioned air is disposed in the accommodation space 16. In the housing space 16, the air blower 17 may be arranged alone and connected to the heat exchange device outside the seat by piping. However, an air conditioner including a heat exchange element such as a Peltier element is integrated with the air blower 17. And may be arranged in the accommodation space 16 as a unit.

  In the side wall facing the extension space 15 of the side support portion 8, an introduction hole 18 communicating with the blowing portion 21 of the blower device 17 is formed as shown in FIGS. 1 and 3, and the conditioned air sent from the blower device 17. Flows into the extension space 15 through the introduction hole 18. The conditioned air flowing into the extension space 15 passes through the inside of the rigidity maintaining material 9 on the back surface of the seat skin material 6 and is introduced to the back surface side of the seating portion 7 of the seat skin material 6. Further, the cushion body 5 is provided with a discharge passage 19 using a joint of the pad material block, etc., and the conditioned air is discharged from the back surface side of the seat skin material 6 to the seat bottom portion through the discharge passage 19. It has become. In this seat air conditioner, the rigidity maintaining material 9 and the discharge passage 19 together with the extension space 15 constitute a flow path of conditioned air.

  In this seat air conditioner, heat exchange is performed between the conditioned air and the occupant seating area of the seat skin material 6 while the conditioned air passes through the inside of the rigidity maintaining material 9, and the seating area of the seat skin material 6 is air-conditioned. It is heated or cooled by air. As a result, the occupant seated on the seat 1 is informed of warmth and coldness through the contact portion with the seat skin material 6.

  In the seat air conditioner, as described above, since the blower 17 is disposed inside the side support portion 8 on the side of the occupant seating region, the blower 17 is disposed at the bottom of the cushion body 5. The total thickness of the cushion body 5 below the seating region can be reduced to obtain the same cushion performance as compared with the above. Furthermore, this apparatus does not form a flow path of the conditioned air in the cushion body 5, but the extension space 15 below the fishing portion 10 extending in the seat width direction, and the seat portion of the seat skin material 6. Since the air-conditioning air flow path is formed by using the rigidity maintaining material 9 bonded to the lower surface of the air-conditioner, it is not necessary to increase the thickness of the cushion main body 5 in order to form the air-conditioned air flow path in the cushion main body 5. Also greatly contributes to reducing the total thickness of the cushion body 5. For these reasons, when this seat air conditioner is employed, the seat cushion 2 can be made sufficiently thin without sacrificing sitting comfort. Therefore, the degree of freedom in seat design and body layout is greatly expanded.

  Further, in the seat air conditioner of this embodiment, the rigidity maintaining material 9 itself is air-conditioned by causing the end portion of the rigidity maintaining material 9 joined to the back surface of the seating position of the seat skin material 6 to face the extension space 15. Since it is used as an air flow path, it is not necessary to form a dedicated heat exchange chamber facing the back surface of the seat skin material 6 on the upper surface of the cushion body 5, and the flow path can be easily formed accordingly. There is an advantage.

  In the case of this embodiment, since the conditioned air is introduced along the back surface of the sheet skin material 6 from the extension space 15 on the lower surface side of the fishing portion 10, the flow of the conditioned air becomes smooth, There is also an advantage that uniform heat exchange can be easily performed in almost the entire area of the seating portion 7. That is, in the fishing section 10, as shown in FIG. 4, since the seat skin material 6 is smoothly curved and drawn into the fishing groove 11, the conditioned air that has flowed into the extension space 15 is absorbed by the seat. It flows smoothly along the curved shape of the skin material 6, and easily reaches every corner of the back surface of the seating portion 7.

  Furthermore, in this embodiment, since the seat skin material 6 and the bottom portion of the fishing part 10 are connected by the ring-shaped locking metal fitting 12 in the fishing part 10, a large-sized sheet skin material 6 can be easily assembled. Even when the locking fitting 12 is used, the conditioned air surely flows through the ring-shaped inner space of the locking fitting 12. Therefore, in the case of the apparatus of this embodiment, there is also an advantage that the locking metal fitting 12 does not easily obstruct the flow of conditioned air flowing through the extension space 15.

  In addition, this invention is not limited to the said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, in the embodiment described above, the conditioned air that has flowed into the back surface side of the seat skin material 6 through the extension space 15 of the fishing portion 10 and the rigidity maintaining material 9 is discharged below the cushion body 5 through the discharge passage 19. However, as shown in FIG. 6, a plurality of blowing holes 25 are formed in the seating portion 7 of the seat skin material 6, and the back surface side of the seat skin material 6 through the extension space 15 and the rigidity maintaining material 9. The conditioned air introduced into the vehicle may be blown out to the occupant side through the blowout hole 25. In this case, the seat cushion 2 can be made sufficiently thin without sacrificing sitting comfort, as in the above-described embodiment.

1 is a partially broken perspective view showing an embodiment of the present invention. The perspective view which shows the same embodiment. Sectional drawing which follows the AA line of FIG. 2 which shows the same embodiment. The expanded sectional view which follows the BB line of FIG. 3 which shows the same embodiment. The expanded sectional view of the rigidity maintenance raw material which shows the same embodiment. The expanded sectional view equivalent to FIG. 3 which shows other embodiment of this invention.

Explanation of symbols

2 Seat cushion 5 Cushion body 6 Seat skin material 8 Side support 9 Stiffness maintaining material (flow path)
11 Fishing groove 15 Extension space (flow path)
17 Blower 19 Discharge passage 21 Blowout part 25 Blowout hole

Claims (4)

A vehicle seat air conditioner that distributes temperature-conditioned air to an occupant seating area,
A fishing groove extending along the seat width direction is formed on the upper surface of the passenger seating area of the cushion body of the seat cushion,
In the one where the sheet skin material is drawn into the fishing groove, and the sheet skin material is locked to the bottom of the fishing groove,
A blower for air conditioning is arranged inside a side support portion provided on the side of the seat cushion occupant seating position, and the blowing portion of the blower is formed in the seat width direction between the fishing groove and the seat skin material. A vehicular seat air-conditioning apparatus, wherein the extended air-conditioning air passage is connected to the extension space and the extension space serves as a flow path for the conditioned air.   A rigid maintenance material having air permeability is joined to the back surface of the seating position of the seat cover material so that a part of the rigidity maintenance material faces the extension space, and the stiffness maintenance material itself is conditioned air from the extension space to the seat. The vehicle seat air conditioner according to claim 1, wherein the vehicle seat air conditioner is a flow path of conditioned air that is guided to a back surface of an occupant seating position of the skin material.   The cushion main body disposed on the lower surface side of the rigidity maintaining material forms a discharge passage through which the conditioned air introduced to the lower surface side of the seat skin material passes, and the conditioned air flowing through the rigidity maintaining material and the seat skin material The vehicle seat air conditioner according to claim 2, wherein heat exchange is performed between the two. The vehicle seat air conditioner according to claim 2, wherein a blowout hole is formed in the seat skin material to blow out the conditioned air introduced to the lower surface side of the seat skin material to the outside of the seat skin material.

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