JP2012228333A - Air permeable seat structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a permeable insert to be arranged on a seating surface of a seat without enlarging it on a plane.SOLUTION: An insert body 12a is obtained by internally providing a substantially planar flexible spacer member 26 having an air flow passage therein in a bag body 24 having permeability only on a surface side 24a, providing a permeation opening at a rear side of the bag body at a position aligning with the planer surface of the flexible spacer member 26, and arranging a permeation device 34 allowing air to flow between the inside of the insert body and the outside in the insert body in a manner allowing communication via a permeation duct 32 extending in a direction substantially orthogonal to the planar surface of the flexible spacer member from the permeation opening to form a permeable insert 12. At least a permeation opening 34a of the permeation device is exposed and arranged to the outside of the seat pad rear surface in a state where the permeation device and the permeation duct are inserted into a through hole 36 provided at the seat pad 14 and the insert body 12a is placed on a seat pad seating surface 14a.

Description

  The present invention relates to a breathable sheet structure in which a ventilation insert that forms a ventilation layer in a seat is disposed under the skin of a vehicle or the like.

  As a seat for automobiles, etc., an air-conditioning seat that releases hot air, cold air, etc. supplied from the outside of the seat to the surface of the seat, or heat and moisture on the surface of the seat is circulated inside the seat so that There are known a breathable sheet and the like (hereinafter collectively referred to as a breathable sheet) for suppressing dampening and the like. And as this kind of breathable sheet, there is a configuration in which a ventilation insert is arranged on the seat pad under the surface of the sheet, and the inside of this ventilation insert is secured as an air flow path, that is, a ventilation layer inside the sheet. It is known (for example, Japanese translations of PCT publication No. 2004-520889).

  This type of ventilation insert secures the bag body as an air flow path (ventilation layer) by installing a spacer member through which air can flow in a bag body made of, for example, a non-breathable material (cloth). ing. Usually, a plurality of ventilation holes are formed in the surface side member of the bag body, and air is circulated by a ventilation device such as a blower or a fan through the ventilation opening provided in the bag body, so that It is possible to supply hot air or cold air, or to intake air such as heat or moisture on the sheet surface, so-called ventilation.

  By providing such a ventilation insert as a ventilation layer in the seat, it is possible to suppress the loss of circulating air at the skin and the seat pad and to limit the breathable area to the required location. Electricity can be expected.

JP-T-2004-520889

  By the way, as disclosed in JP-T-2004-52089A, in a known configuration, one end of the bag body (for example, the rear end of the seat cushion or the lower end of the seat back) is usually extended. A ventilation device is provided in the extension portion so as to communicate therewith. This is a measure by disposing the ventilation device at a position away from the seating surface of the seat so as not to cause a feeling of bottoming at the time of sitting, but in such a configuration, by providing this extension portion The size of the ventilation insert on the plane is inevitable.

  Further, in the configuration in which the ventilation device is provided at the extension portion at one end of the bag body, the distance between the ventilation device and the side facing the extension portion where the ventilation device is provided becomes long. In addition to the disadvantageous air circulation, the amount of air required for the venting device is likely to increase, leading to uneven ventilation and an increase in the size of the venting device.

  An object of the present invention is to provide a breathable sheet structure that can be arranged on a seating surface of a seat without increasing the size of a ventilation insert on a plane.

  For the above purpose, according to the breathable sheet structure of the present invention according to claim 1, a substantially flat plate-like structure having an air circulation path inside the bag body which is breathable only on the surface side. A flexible spacer member is provided as an insert main body, and a vent opening is provided on the back side of the bag body at a position aligned with the flat plate surface of the flexible spacer member, and the flat plate surface of the flexible spacer member is formed from the vent opening. A ventilation device that circulates air between the inside of the insert body and the outside through a ventilation duct that extends in a direction substantially orthogonal to the inside of the insert body so as to be able to communicate with the inside of the insert body. . Then, the ventilation device and the ventilation duct are inserted into the through hole provided in the seat pad, and at least the vent of the ventilation device is exposed to the outside of the back surface of the seat pad with the insert body placed on the seat pad seating surface. doing.

  According to the second aspect of the present invention, the ventilation duct of the ventilation insert is a three-dimensional fiber structure having a breathability and elasticity formed in a substantially cylindrical shape, and the periphery thereof is made of a non-breathable material. By covering with the cover member, air circulation is ensured between the inside of the insert body and the ventilation device.

  According to the third aspect of the present invention, the insert body of the ventilation insert is fixed to the seat pad seating surface.

  In the breathable sheet structure according to the first aspect of the present invention, the ventilation duct and the ventilation device extend to the back side of the bag body at a position aligned with the flat plate surface of the flexible spacer member. An increase in size on a flat surface can be reliably prevented, and ventilation with suppressed bias can be easily ensured. Then, the ventilation duct and the ventilation device are extended from the ventilation opening provided on the back surface side of the bag body in a direction substantially orthogonal to the flat plate surface of the flexible spacer member, and are inserted into a through hole provided in the seat pad. Therefore, it is possible to arrange the ventilation device in a state that does not give the seated person a feeling of bottoming or the like. Furthermore, the direction in which the ventilation duct extends coincides with the direction in which the load from the seated person is applied, and the ventilation duct does not collapse from the direction perpendicular to the axis line. Can be secured appropriately.

  In the present invention according to claim 2, since the ventilation duct of the ventilation insert is a three-dimensional fiber structure having air permeability and elasticity formed in a substantially cylindrical shape, the cushion performance of the seat pad is adversely affected. A structure that is not given can be easily secured.

  Further, in the present invention according to claim 3, since the insert body of the ventilation insert is fixed to the seat pad seating surface, the displacement of the insert body with respect to the seat pad can be surely prevented.

It is a schematic longitudinal cross-sectional view of the vehicle seat by which the air permeable sheet structure of this invention was employ | adopted. It is a schematic longitudinal cross-sectional view of the ventilation | gas_flowing insert. It is a schematic exploded perspective view of a breathable sheet structure.

  A substantially flat flexible spacer member is provided in the bag body that has air permeability only on the front surface side, and the inside of the bag is used as an air flow path. Ventilation openings are provided on the back side of the bag body at the aligned position. Then, a ventilation device that allows air to flow between the inside of the insert body and the outside is communicated with the inside of the insert body through a ventilation duct that extends in a direction substantially orthogonal to the flat plate surface of the flexible spacer member from the ventilation opening. By arranging it as possible, this is used as a ventilation insert. In addition, the ventilation device and ventilation duct are inserted into the through-hole provided in the seat pad, and at least the vent of the ventilation device is exposed outside the back surface of the seat pad with the insert body placed on the seat pad seating surface. ing.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a schematic longitudinal sectional view of a vehicle seat in which the breathable seat structure of the present invention is adopted, FIG. 2 is a schematic longitudinal sectional view of a ventilation insert, and FIG. 3 is a schematic exploded perspective view of the breathable seat structure. . As shown in the drawings, in the breathable sheet structure 10 of the present invention, a ventilation insert 12 that forms a ventilation layer in the seat is disposed on the surface of the seat on the seating surface 14 a of the seat pad 14. .

  As shown in FIG. 1, the ventilation insert 12 can be disposed on either the seat cushion 18 or the seat back 20 of the vehicle seat 16, and usually the upper surface (or front surface) of the seat pad 14 that is a cushion body. Thus, it is arranged on the back surface (epidermal) of the epidermis 22 covering the sheet surface. The skin 22 of the seat cushion and the seat back is made of a breathable material that can ensure the ventilation between the seat cushion and the seat back.

  As shown in FIG. 2, the ventilation insert 12 disposed on the seating surface 14 a of the seat pad is a substantially flat plate having an air circulation path inside a bag body 24 that has air permeability only on the surface side. It has the insert main body 12a formed in the shape of the flexible spacer member 26 of the shape.

  The bag body 24 is made of, for example, a non-breathable material, and air permeability is given only to the surface side 24a, for example, by drilling a plurality of vent holes 28 or the like. The bag body 24 is not limited to the formation of the vent hole 28 on the surface side 24a. For example, the bag body is formed by stitching the surface side material and the back side material, and only the surface side material is vented. As a conductive material, air permeability may be given to the surface side.

  Further, the flexible spacer member 26 provided in the bag body 24 can secure an air flow path without being crushed even under the load of the seated person, for example, a three-dimensional combination of fiber materials. A substantially flat three-dimensional fiber structure having a predetermined thickness can be used. The flexible spacer member 26 is a substantially flat plate member having a predetermined thickness with flexibility, and it is possible to secure an air ventilation channel inside the flexible spacer member 26 without being crushed even under the load of the seated person. However, the present invention is not limited to the three-dimensional fiber structure, and may be a three-dimensional resin structure, for example.

  Here, as shown in FIG. 2, in the present invention, a ventilation opening 30 is provided on the back side 24b of the bag body at a position aligned with the flat plate surface of the flexible spacer member 26, and the flexible spacer is formed from the ventilation opening. By arranging a ventilation device 34 that allows air to flow between the inside of the insert body 12a and the outside via the ventilation duct 32 that extends in a direction substantially orthogonal to the flat plate surface of the member, This is used as a ventilation insert 12. As shown in FIGS. 1 and 2, the ventilation device 34 and the ventilation duct 32 are inserted into the through hole 36 provided in the seat pad 14, and the insert main body 12a is placed on the seating surface 14a of the seat pad. By disposing at least the vent hole 34a of the venting device 34 so as to be exposed to the outside of the back surface of the seat pad, the venting insert 12 is disposed on the seat cushion 18 and the seat back 20 of the seat.

  In this embodiment, the ventilation duct 32 is embodied as a three-dimensional fiber structure having air permeability and elasticity formed in a substantially cylindrical shape, and the periphery thereof is covered with a cover member 38 made of a non-air-permeable material. Thus, air circulation between the insert main body 12a and the ventilation device 34 is ensured. The cover member 38 can be embodied as an integral member with the bag body 24, for example.

  Further, as the aeration device 34, a blower, a fan, or the like can be used.

  Thus, in the breathable sheet structure of the present invention, the ventilation duct 32 and the ventilation device 34 are extended to the back surface side 24b of the bag body 24 at a position aligned with the flat plate surface of the flexible spacer member 26. An increase in size of the ventilation insert 12 on the plane is reliably prevented. And since the ventilation duct 32 and the ventilation apparatus 34 are aligned on the flat plate surface of the flexible spacer member 26, it is possible to ventilate any position of the flexible spacer member without significant deviation. Therefore, according to the present invention, it is possible to easily ensure ventilation with suppressed bias.

  Further, in the present invention, the ventilation duct 32 and the ventilation device 34 are extended from the ventilation opening 30 provided on the back surface side 24b of the bag body 24 in a direction substantially orthogonal to the flat plate surface of the flexible spacer member 26. A through hole 36 provided in the seat pad 14 is inserted and arranged. With such a configuration, the ventilation device 34 floats and sinks according to the load of the seated person, and even if the ventilation duct 32 is compressed in the extending direction, that is, in the axial direction, the elasticity of the ventilation duct is obtained. Since the load can be absorbed, the ventilation device can be arranged in a state that does not give the seated person a feeling of bottoming or the like. Further, the direction in which the ventilation duct 32 extends coincides with the direction of the load from the seated person, and the ventilation duct is not crushed from the direction perpendicular to the axis thereof. Performance can be secured appropriately.

  Here, in the embodiment of the present invention, the ventilation duct 32 of the ventilation insert is embodied as a three-dimensional fiber structure having air permeability and elasticity formed in a substantially cylindrical shape, but air can be circulated. Any structure can be used without limitation. However, if a substantially cylindrical three-dimensional fiber structure is used as in the ventilation duct 32 in this embodiment, a hollow portion is not formed on the seating surface 14a of the seatpad. A structure that does not adversely affect the structure can be easily secured.

  Further, it is desirable that the insert body 12a of the ventilation insert is fixed to the seat pad seating surface 14a. With such a configuration, the displacement of the insert body 12a with respect to the seat pad 14 can be surely prevented, and this can sufficiently eliminate the uncomfortable feeling at the time of sitting for the seated person.

  In addition, as a method of adhering the insert main body 12a to the seat pad seating surface 14a, adhesion with an adhesive, sticking with a double-sided tape, or the like can be exemplified.

  The above-described embodiments are for explaining the present invention, and are not intended to limit the present invention. All modifications, alterations and the like within the technical scope of the present invention are included in the present invention. Needless to say.

  Although the present invention is excellent in application to breathable sheets such as automobiles, the present invention is not limited thereto. For example, the present invention is applied to other vehicle seats such as trains, airplanes, and ships, and household seats and various facility seats. You may apply.

DESCRIPTION OF SYMBOLS 10 Breathable sheet structure 12 Venting insert 12a Insert body 14 Seat pad 24 Bag body 26 Flexible spacer member 30 Venting opening 32 Venting duct 34 Ventilating device 34a Venting port 36 Through hole

Claims (3)

In the breathable seat structure in which the ventilation insert that forms a ventilation layer in the seat is arranged on the seating surface of the seat pad under the surface of the seat,
A substantially flat flexible spacer member is provided in the bag body that has air permeability only on the front surface side, and the inside of the bag is used as an air flow path. A vent opening is provided on the back side of the bag body at the alignment position, and between the inside of the insert body and the outside through a vent duct extending from the vent opening in a direction substantially orthogonal to the flat surface of the flexible spacer member. By arranging the ventilation device that circulates air in the insert body so that it can communicate, this is used as the ventilation insert,
The ventilation device and ventilation duct are inserted through the through hole provided in the seat pad, and at least the ventilation hole of the ventilation device is exposed to the outside of the back surface of the seat pad with the insert body placed on the seat pad seating surface. Breathable sheet structure characterized by. The ventilation duct of the ventilation insert is a three-dimensional fiber structure having air permeability and elasticity formed in a substantially cylindrical shape, and the periphery of the ventilation duct is covered with a cover member made of a non-breathable material. The breathable sheet structure according to claim 1, wherein air circulation between the ventilation device and the ventilation device is ensured. The breathable seat structure according to claim 1 or 2, wherein an insert main body of the ventilation insert is fixed to a seat pad seating surface.

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