JP2019038461A - Seat - Google Patents

Abstract

To provide a seat whose surface can sufficiently be ventilated as one example.SOLUTION: A vehicular seat comprises a plate material 8 arranged on a rear side of a back pad 6 with one surface of the seat opposing to the rear side of the back pad 6, and an air blower 7 arranged opposing to the other surface of the plate material 8. This allows loads caused by own weight of a seated person to be applied dispersively over a range corresponding to the size of the plate material 8, which can suppress the back pad 6 from being largely deformed locally. This can suppress cross section areas of a plurality of flow paths from being reduced largely, so that a surface of the seat can sufficiently be ventilated.SELECTED DRAWING: Figure 4

Description

  The present application relates to a seat having a function of ventilating the seat surface (hereinafter also referred to as an air conditioning function).

  For example, in the vehicle seat described in Patent Document 1, a flow path through which air flows is provided in the back pad, and an air flow is generated in the flow path by a blower, thereby realizing an air conditioning function. Yes.

JP 2006-132448 A

  A seat pad such as a back pad is elastically deformable and is made of a material (for example, urethane foam). For this reason, if a member having rigidity higher than that of the seat pad such as a blower is disposed on the back side of the seat pad, the flow path is reduced so that the cross-sectional area of the flow path is reduced by the load due to the weight of the seated person. The road may be deformed.

  That is, a large surface pressure is generated in a portion of the seat pad sandwiched between the seated person and the blower. For this reason, since the seat pad is largely deformed locally, the cross-sectional area of the flow path is reduced. When the cross-sectional area of the flow path is reduced, the flow rate of the air flowing through the flow path is reduced, so that there is a possibility that the seat surface cannot be sufficiently ventilated.

  In view of the above points, the present application discloses an example of a sheet that can sufficiently ventilate the sheet surface.

  The sheet is a plate-like plate material (8) having a rigidity higher than that of the seat pad (6), and one surface faces the back surface of the seat pad (6), and the sheet pad (6) has a back surface side. It is provided with the arranged plate material (8) and the blower (7) arranged in a state of being opposed to the other surface of the plate material (8) and generating an air flow flowing through the flow path (6B). desirable.

  As a result, the load due to the weight of the seated person acts in a distributed manner within the size range of the plate material (8). Therefore, since it can suppress that a seat pad (6) deform | transforms locally locally, it can suppress that the cross-sectional area of a flow path (6B, 6C) reduces significantly. As a result, it may be possible to sufficiently ventilate the sheet surface.

The sheet may have the following configuration.
A virtual plane parallel to the plate material (8) is used as a projection plane, and the seat pad (6) projected onto the projection plane is a part other than the flow path (6B) and is projected onto the projection plane. When the portion overlapping the outer edge side of the plate material (8) is used as the support portion, the first support portion (9A, 9C, 9E) is located in one region across the communication port (8A) projected on the projection surface. It is desirable that the second support portion (9B, 9D, 9F) is provided in the other region with the communication port (8A) projected on the projection surface.

  Thereby, the load by a seated person's own weight can be reliably disperse | distributed to the outer edge part side of a plate material (8). Accordingly, it is possible to reliably suppress the seat pad (6) from being greatly deformed locally.

  In a direction different from the direction from the first support portion (9A) to the second support portion (9B), the third support portion (9A, 9A, 9B) and fourth support portions (9E, 9F) are desirably provided on the other side of the communication port (8A) projected on the projection surface.

  Thereby, the load by a seated person's own weight can be reliably disperse | distributed to the outer edge part side of a plate material (8). Accordingly, it is possible to reliably suppress the seat pad (6) from being greatly deformed locally.

  The seat pad (6) is provided with a plurality of flow paths (6B, 6C) and a manifold portion (6D) in which the flow paths (6B, 6C) are connected, and a plate material ( 8) is larger than the manifold portion (6D) projected onto the projection plane, and the plurality of flow paths (6B, 6C) projected onto the projection plane are outer edges of the plate material (8) projected onto the projection plane. It is desirable to extend so as to cross.

  Thereby, the load by a seated person's own weight can be reliably disperse | distributed to the outer edge part side of a plate material (8). Accordingly, it is possible to reliably suppress the seat pad (6) from being greatly deformed locally.

  The surface of the seat pad (6) is provided with a groove (6F) in which the joint (5B) of the epidermis (5A) is accommodated, and the flow path (6B) projected on the projection plane is projected on the projection plane. In the configuration extending across the groove portion (6F), the first support portion (9A) is located on one side of the flow channel (6B), and the second support portion (9B) is the flow channel. It is desirable to be located on the other side across (6B).

  Thereby, the load by a seated person's own weight can be reliably disperse | distributed to the outer edge part side of a plate material (8). Accordingly, it is possible to reliably suppress the seat pad (6) from being greatly deformed locally. In the first to fourth support portions, some support portions may overlap.

  Incidentally, the reference numerals in the above parentheses are examples showing the correspondence with the specific configurations described in the embodiments described later, and the present invention is limited to the specific configurations indicated by the reference numerals in the parentheses. It is not something.

It is a figure which shows the vehicle seat which concerns on embodiment of this invention. It is a figure which shows the back pad which concerns on embodiment of this invention. It is a figure which shows the sheet | seat air conditioner which concerns on embodiment of this invention. It is a figure which shows the sheet | seat air conditioner which concerns on embodiment of this invention. It is a figure which shows the back pad which concerns on embodiment of this invention. It is a figure which shows the plate material which concerns on embodiment of this invention. It is a figure which shows the sheet | seat air conditioner which concerns on embodiment of this invention.

The “embodiment of the invention” described below shows an example of an embodiment belonging to the technical scope of the present invention. In other words, the invention specific items described in the claims are not limited to the specific configurations and structures shown in the following embodiments.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
At least one member or part described with at least a reference numeral is provided, except where “one” or the like is omitted. That is, when there is no notice such as “one”, two or more members may be provided.

  The arrows and the like indicating the directions attached to the drawings are described for easy understanding of the relationship between the drawings, and the present invention is not limited to the directions attached to the drawings. . Each direction means a direction in a state where the vehicle seat according to the present embodiment is assembled to the vehicle.

As used herein, the term “seated person” refers to a vehicle occupant or a person who uses a vehicle seat. Therefore, the seated person includes those who are not actually seated.
(First embodiment)
1. Outline of Seat In the present embodiment, the present invention is applied to a vehicle seat used for vehicles such as automobiles, railway vehicles, ships, and airplanes. A vehicle seat 1 shown in FIG. 1 has a seat body 2 and the like. The seat body 2 includes at least a seat cushion 3 and a seat back 5.

  The seat cushion 3 is a part that supports a seated person's buttocks, and includes at least a cushion pad (not shown), a skin 3A, and the like. The cushion pad is a cushioning material made of an elastically deformable material such as urethane foam. The skin 3A is a member that covers the surface side of the cushion pad.

  The seat back 5 is a part that supports the back of the seated person. The seat back 5 includes at least a back pad 6 (see FIG. 2), a skin 5A, and the like. The back pad 6 is a buffer material made of an elastically deformable material such as urethane foam. The skin 5 </ b> A is a member that covers the surface side of the back pad 6.

  The cushion pad and the back pad 6 are an example of a seat pad. That is, a member made of an elastically deformable material among members constituting the seat body 2 is called a seat pad.

  The surface of the seat pad is a portion of the seat body 2 that can be directly viewed by a seated person. That is, the surface side of the cushion pad corresponds to the upper surface and side surface of the cushion pad. The front surface side of the back pad 6 corresponds to the front surface and side surface of the back pad 6.

  The back side of the cushion pad refers to the side opposite to the front side with the cushion pad interposed therebetween. The back side of the back pad 6 refers to the side opposite to the front side with the back pad 6 in between. Therefore, the back side of the back pad 6 includes the back side of the back pad 6.

2. 2. Seat Air Conditioner 2.1 Outline of Seat Air Conditioner The seat body 2 is provided with an air conditioning function for ventilating the seat surface, that is, a seat air conditioner (SVS). The following description is an explanation of a seat air conditioner provided in the seat back 5.

As shown in FIG. 3, a ventilation fan 7 is provided on the back side of the back pad 6. In addition, the air blower 7 which concerns on this embodiment is being fixed to the back frame (not shown) via the lumbar support apparatus 10, as shown in FIG.

  As shown in FIG. 5, the back pad 6 is provided with a plurality of vent holes 6A. These vent holes 6A extend from the surface of the back pad 6 to the back side. On the back side of the back pad 6, as shown in FIG.

  Each air hole 6A is connected to the manifold portion 6D via a plurality of flow paths 6B and 6C. The manifold portion 6D is a space provided on the back side of the back pad 6 and is a space where a plurality of flow paths 6B and 6C are gathered.

  Each vent 6A penetrates from the surface of the back pad 6 to the back surface. Each of the flow paths 6B and 6C is a groove-shaped or recessed-shaped portion with the back side released. For this reason, the back surface of the back pad 6 is provided with a closing member (for example, a felt) 6E that closes the open sides of the air holes 6A and the flow paths 6B and 6C.

  As shown in FIG. 6, a plate material 8 is disposed on the back side of the back pad 6. The plate material 8 is a plate-like member having higher rigidity than the back pad 6. The plate material 8 is disposed on the back side of the back pad 6 with one surface facing the back surface of the back pad 6.

  The plate member 8 according to the present embodiment is disposed on the back side of the back pad 6 in a state of being fixed to the closing member 6E. That is, one surface of the plate material 8 indirectly faces the back surface of the back pad 6 through the closing member 6E (see FIG. 7).

  As shown in FIG. 6, the plate material 8 is disposed so as to close the release side of the manifold portion 6 </ b> D. The plate member 8 is provided with a communication port 8A. The airflow induced by the blower 7 flows through the communication port 8A. That is, the communication port 8A according to the present embodiment communicates with the manifold portion 6D.

  The blower 7 is arranged in a state of facing the other surface of the plate material 8 so as to close the communication port 8A. For this reason, when the blower 7 is operated, an air flow that flows through the flow paths 6B and 6C through the communication port 8A is generated.

  The blower 7 according to the present embodiment generates the air flow by sucking air from the communication port 8A. That is, the air on the sheet surface side gathers in the manifold portion 6D via the air holes 6A and the flow paths 6B and 6C, and is then sucked into the blower 7 and released to the outside of the sheet body 2.

2.2 Arrangement Configuration of Plate Material A virtual plane parallel to the plate material 8 is a projection plane, and the back pad 6 projected on the projection plane is a part other than the flow paths 6B and 6C, When the projected portion of the plate material 8 that overlaps the outer edge side (shaded portion in FIG. 6) is used as a support portion, there are a plurality of the support portions as shown in FIG.

  That is, the “projection surface” corresponds to the paper surface of FIG. “Parts overlapping the outer edge side of the plate material 8 projected on the projection surface”, that is, the support parts are the parts 9A to 9F (hereinafter referred to as support parts 9A to 9F) hatched in FIG.

The plate material 8 projected onto the projection plane is larger than the manifold portion 6D projected onto the projection plane. For this reason, the plurality of flow paths 6B and 6C projected onto the projection plane extend so as to cross the outer edge of the plate material 8 projected onto the projection plane.

  Any one of the plurality of support portions 9A to 9F satisfies the following requirements. That is, any one of the support portions 9A to 9F is provided in the region on one side across the communication port 8A projected on the projection surface and the region on the other side across the communication port 8A projected on the projection surface. ing.

  For example, when a region on the right side of the drawing with the communication port 8A interposed therebetween is the “one side region”, support portions 9A, 9C, and 9E are provided in the “one side region”. When the area on the left side of the drawing with the communication port 8A interposed therebetween is the “other side area”, support parts 9B, 9D, and 9F are provided in the “other side area”.

  That is, in the left-right direction of the drawing, the support portions 9A, 9C, and 9E are provided in “one side region”, and the support portions 9B, 9D, and 9F are provided in “the other side region”. The left-right direction (hereinafter referred to as the first direction) in the drawing is, for example, a direction parallel to the direction from the support portion 9A toward the support portion 9B.

  For example, when the area on the lower side of the sheet with the communication port 8A interposed therebetween is the “one side area”, support parts 9A and 9B are provided in the “one side area”. When the area on the upper side of the drawing with the communication port 8A interposed therebetween is the "other area", support parts 9E and 9F are provided in the "other area".

  That is, in the vertical direction of the drawing, the support portions 9A and 9B are provided in the “one side region”, and the support portions 9E and 9F are provided in the “other side region”. The vertical direction of the paper (hereinafter referred to as the second direction) is an example of a direction different from the first direction.

  For example, when a region on the lower left side of the drawing with the communication port 8A interposed therebetween is referred to as the “one side region”, a support portion 9B is provided in the “one side region”. When the area on the upper right side of the drawing with the communication port 8A interposed therebetween is the “other area”, a support portion 9E is provided in the “other area”.

  That is, in a direction parallel to the direction from the lower left side of the paper surface to the upper right side of the paper surface (hereinafter referred to as the third direction), the support portion 9B is provided in the “one side region” and the support portion is provided in the “other side region”. 9E is provided. The third direction is an example of a direction different from the first direction and the second direction.

  For example, when a region on the lower right side of the drawing with the communication port 8A interposed therebetween is referred to as the “one side region”, a support portion 9A is provided in the “one side region”. When a region on the upper left side of the drawing with the communication port 8A interposed therebetween is the “other side region”, the “other side region” is provided with a support portion 9F.

  That is, in a direction parallel to the direction from the lower right side of the paper surface to the upper left side of the paper surface (hereinafter referred to as the fourth direction), the support portion 9A is provided in the “one side region” and is supported in the “other side region”. A portion 9F is provided. The fourth direction is an example of a direction different from the first direction, the second direction, and the third direction.

Among the support portions 9A to 9F, in particular, the support portion 9A and the support portion 9B have the following relationship.
That is, the channel 6B projected on the projection surface extends so as to cross the groove 6F projected on the projection surface.

  The groove 6F is a groove extending in the sheet width direction on the surface of the back pad 6, and is a part in which the joint 5B (see FIG. 7) of the skin 5A is stored. The support portion 9A is located on one side of the channel 6B, and the support 9B is located on the other side of the channel 6B.

3. Features of vehicle seat according to this embodiment A vehicle seat 1 includes a plate material 8 disposed on the back side of the back pad 6 with one surface facing the back surface of the back pad 6, and the plate material. 8 is provided in a state facing the other surface of the fan 8.

  As a result, the load due to the weight of the seated person acts in a distributed manner within the size range of the plate material 8. Therefore, since it can suppress that the back pad 6 deform | transforms locally locally, it can suppress that the cross-sectional area of several flow paths 6B and 6C reduces significantly. As a result, it may be possible to sufficiently ventilate the sheet surface.

  One of the support portions 9A to 9F is provided in one area across the communication port 8A projected onto the projection surface and the other area across the communication port 8A projected onto the projection surface. . Thereby, the load due to the weight of the seated person can be reliably distributed to the outer edge side of the plate material 8. Therefore, the back pad 6 can be reliably suppressed from being greatly deformed locally.

  The plate material 8 projected onto the projection surface is larger than the manifold portion 6D projected onto the projection surface, and the plurality of flow paths 6B and 6C projected onto the projection surface are formed by the plate material 8 projected onto the projection surface. It extends across the outer edge.

Thereby, the load due to the weight of the seated person can be reliably distributed to the outer edge side of the plate material 8. Therefore, the back pad 6 can be reliably suppressed from being greatly deformed locally.
By the way, the flow path 6B projected on the projection surface extends so as to cross the groove 6F projected on the projection surface. For this reason, the thickness of the back pad 6 is reduced in the portion of the back pad 6 where the flow path 6B is provided. Therefore, there is a high possibility that the back pad 6 is greatly deformed locally, particularly in the groove 6F.

  On the other hand, in the vehicle seat 1 according to the present embodiment, among the support portions 9A to 9F, in particular, the support portion 9A is located on one side with the flow channel 6B interposed therebetween, and the support portion 9B has the flow channel 6B. Located on the other side across. Thereby, the load due to the weight of the seated person can be reliably distributed to the outer edge side of the plate material 8. Therefore, the back pad 6 can be reliably suppressed from being greatly deformed locally.

(Other embodiments)
The blower 7 according to the above-described embodiment is fixed to the back frame via the lumbar support device 10. However, the invention disclosed in this specification is not limited to this. That is, for example, a configuration in which the blower 7 is fixed to the plate material 8 may be employed.

  In the above-described embodiment, a plurality of the air holes 6A and the flow paths 6B and 6C are provided. However, the invention disclosed in this specification is not limited to this. That is, for example, a configuration in which one flow path is provided may be used.

  In the above-described embodiment, any one of the support portions 9A to 9F is provided in the region on one side across the communication port 8A projected on the projection surface and the region on the other side across the communication port 8A projected on the projection surface. Was provided. However, the invention disclosed in this specification is not limited to this.

  In the above-described embodiment, the plate material 8 projected onto the projection plane is larger than the manifold portion 6D projected onto the projection plane, and the plurality of flow paths 6B and 6C projected onto the projection plane are projected onto the projection plane. It extended so that the outer edge of the made plate material 8 might be crossed.

  However, the invention disclosed in this specification is not limited to this. That is, for example, the plate material 8 projected onto the projection surface is configured to be smaller than the manifold unit 6D projected onto the projection surface, or the plurality of flow paths 6B and 6C projected onto the projection surface are projected onto the projection surface. The structure which does not cross the outer edge of the plate material 8 may be sufficient.

  In the above-described embodiment, the support portion 9A is positioned on one side with the flow channel 6B interposed therebetween, and the support portion 9B is positioned on the other side with the flow channel 6B interposed therebetween. However, the invention disclosed in this specification is not limited to this.

  The blower 7 according to the above-described embodiment was a suction type blower. However, the invention disclosed in this specification is not limited to this. That is, the blower 7 may be, for example, a push (blowout) blower.

  The seat air conditioner according to the above-described embodiment is incorporated in the seat back 5. However, the invention disclosed in this specification is not limited to this. That is, the seat air conditioner may be incorporated in the seat cushion 3.

  In the above-described embodiment, the seat according to the present invention is applied to a vehicle seat. However, the application of the present invention is not limited to this, and can also be applied to stationary seats used in theaters and homes.

  Furthermore, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims. Therefore, you may combine at least 2 embodiment among several embodiment mentioned above.

DESCRIPTION OF SYMBOLS 1 ... Vehicle seat 2 ... Seat main body 3 ... Seat cushion 3A ... Skin 5 ... Seat back 5A ... Skin 5B ... Seam 6 ... Back pad 6A ... Vent hole 6B, 6C ... Flow path 6D ... Manifold part 6E ... Blocking member 6F ... Groove 7 ... Blower 8 ... Plate material 8A ... Communication port 9A-9F ... Supporting part

Claims (6)

An elastically deformable seat pad having a skin disposed on the surface side, and a seat pad provided with a flow path through which air flows,
A plate-like plate material having greater rigidity than the seat pad, and a plate material disposed on the back side of the seat pad in a state where one side faces the back side of the seat pad;
A sheet provided with a blower arranged to face the other surface of the plate material and generating an airflow flowing through the flow path. A virtual plane parallel to the plate material is used as a projection surface, and the portion of the sheet pad projected onto the projection surface is a portion other than the flow path and overlaps with the outer edge side of the plate material projected onto the projection surface. When the site is a support part, there are a plurality of the support parts,
The plate material is provided with a communication port through which airflow induced by the blower flows,
Further, the first support portion is provided in one region across the communication port projected on the projection surface, and the other region across the communication port projected on the projection surface. The sheet according to claim 1, wherein the second support portion is provided.   The third support part is provided on one side across the communication port projected on the projection surface in a direction different from the direction from the first support part toward the second support part; and The sheet according to claim 2, wherein the fourth support portion is provided in a region on the other side across the communication port projected on the projection surface. The seat pad is provided with a plurality of the flow paths, and a manifold portion connected to the flow paths,
The plate material projected onto the projection plane is larger than the manifold portion projected onto the projection plane,
The sheet according to claim 3, wherein the plurality of flow paths projected onto the projection plane extend so as to cross an outer edge of the plate material projected onto the projection plane. The surface of the seat pad is provided with a groove portion for storing the seam of the skin,
The flow path projected on the projection plane extends so as to cross the groove portion projected on the projection plane,
The sheet according to claim 2, wherein the first support portion is located on one side of the flow path, and the second support portion is located on the other side of the flow path. In vehicle seats mounted on vehicles,
A vehicle seat, wherein the seat body is constituted by the seat according to any one of claims 1 to 5.

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