JP2004016569A - Vehicle seat structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent air exhausted from an exhaust port of a fan from blowing topically against the occupant's body seated on a backseat when a vehicle seat structure has the fan on the back of a pad member which forms the backrest part of the seat. <P>SOLUTION: An air-permeable cover 13 covers the back of the pad member 11 with a predetermined space therebetween and the fan 14 is provided between the back of the pad member 11 and the cover 13. Air coming from an air vent 15b of the fan 14 is supplied to the front surface of the pad member 11. A wall member 11b spanning between the back of the pad member 11 and the cover 13 is provided and a space A is formed by the back of the pad member 11, the cover 13 and the wall member 11b. The air exhausted out of the exhaust port 16b of the fan 14 is supplied into the space A. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a seat structure in vehicles such as passenger cars, commercial vehicles, and buses.
[0002]
[Prior art]
In a vehicle seat as described above, an air blower is provided on the back surface of a pad member constituting a backrest portion of the seat, and air (hot air, cold air, normal temperature air) of the air blower is supplied to the surface of the pad member. There are those that have been configured. Thus, the air blown by the air blower is supplied to the surface of the pad member, so that the occupant sitting on the seat has high comfort.
When the above-described blower is provided on the back surface of the pad member in the backrest portion, the exhaust port of the blower may be arranged rearward from the backrest portion.
[0003]
[Problems to be solved by the invention]
As described in the related art, when the air outlet of the air blower is disposed rearward from the backrest, the air exhausted from the air outlet of the air blower causes a part of the hand or foot of the occupant sitting on the rear seat. May locally hit a part of the vehicle, and the occupant sitting on the rear seat may feel uncomfortable.
[0004]
In this case, a duct or tube is connected to the exhaust port of the blower, and the duct or tube is extended so that the exhaust air from the exhaust port of the blower does not hit the occupant sitting on the rear seat. However, since the ducts and tubes must be prepared separately, the production cost is high.
According to the present invention, in a vehicle seat structure, when a blower is provided on a back surface of a pad member constituting a seat back portion, exhaust air from an exhaust port of the blower is provided by a hand of an occupant sitting on a rear seat. It is an object of the present invention to provide a configuration in which a state in which a part or a part of a foot is locally hit can be avoided.
[0005]
[Means for Solving the Problems]
[I]
According to the feature of claim 1, the rear surface of the pad member constituting the back portion of the seat is configured to be covered at a predetermined interval from the rear surface of the pad member by a cover having air permeability, and the rear surface of the pad member and the cover are covered. And an air blower is provided between the air blower and the air blower to supply the air blown from the blower opening of the blower to the surface of the pad member. A wall member extending between the back surface of the pad member and the cover is provided between the back surface of the pad member and the cover, and a space is formed by the back surface of the pad member, the cover, and the wall member. It is configured to supply to.
[0006]
Thus, according to the feature of claim 1, when the exhaust air from the exhaust port of the blower is supplied to the space on the back surface of the pad member, the exhaust air from the exhaust port of the blower is mainly applied to the cover portion of the space. Through to the rear. In this case, when the space is formed by the back surface of the pad member, the cover, and the wall member, the width of the wall member is relatively narrow (when the back surface of the pad member is covered by the cover). This is because there is no need to unnecessarily set the gap between the back surface of the pad member and the cover), and the area of the cover portion of the space becomes relatively large.
[0007]
Therefore, according to the first aspect of the present invention, if the exhaust air from the exhaust port of the air blower flows to the rear side through the cover portion of the space having a relatively large area, the exhaust air from the exhaust port of the air blower is reduced. Since the air flows to the rear side in a state of being dispersed over a relatively large area, the exhaust air from the exhaust port of the blower is locally localized to a part of the occupant's hand or foot sitting on the rear seat. Does not occur.
[0008]
[II]
As described in the preceding section [I], when forming a space on the back surface of the pad member, it is conceivable to set all of the back surface of the pad member as a space without using a wall member. However, with this configuration, when the exhaust air from the exhaust port of the air blower is hot air or cool air, the heat of the exhaust air from the exhaust port of the air blower is transmitted to the entire surface of the pad member (the air blower). If the exhaust air from the exhaust port is warm air, the air supplied to the surface of the pad member from the air outlet of the air blower is often cool air), and heat is transmitted from the entire surface of the pad member to the air blower. It is conceivable that the exhaust air from the exhaust port is deprived of the air. (If the exhaust air from the exhaust port of the air blower is cool air, the air supplied from the air outlet of the air blower to the surface of the pad member is hot air. Often).
[0009]
According to the features of claim 1, a wall member extending between the back surface of the pad member and the cover is provided between the back surface of the pad member and the cover, and a space is formed by the back surface of the pad member, the cover, and the wall member. The entire back surface of the pad member is not set as a space. By forming a space not in the entire back surface of the pad member but in a limited portion of the back surface of the pad member as in the feature of claim 1, the heat of the exhaust air from the exhaust port of the blower as described above is formed. Is hardly transmitted to the entire surface of the pad member, or heat is deprived from the entire surface of the pad member by the exhaust air from the exhaust port of the blower.
According to the first aspect of the present invention, when the exhaust air from the air outlet of the air blower flows to the rear side through the space cover portion, the occupant seated on the rear seat is instructed to exhaust air from the air outlet of the air blower. It is relatively easy to set a space at a position where the wind does not easily flow.
[0010]
[III]
In the backrest portion of the vehicle seat, the back surface of the pad member is often covered with a panel having no air permeability, but the pad member is provided with a cover having air permeability (for example, made of cloth). Covering the back is also common.
[0011]
Thus, according to the features of the first aspect, the pad member which is the existing member and the cover having the air permeability which can be called the existing member are used, and the rear surface of the pad member and the cover are provided over these. A space is formed by adding a wall member. Therefore, according to the feature of claim 1, as described in "Problems to be Solved by the Invention", a configuration in which a duct or a tube is connected to the exhaust port of the blower and the duct or the tube is extended. No need to prepare.
[0012]
[IV]
According to the feature of the second aspect, similar to the case of the first aspect, it has the “action” described in the above items [I] to [III], and additionally has the following “action” in addition to this. I have.
According to the feature of claim 2, the wall member is formed by integrally protruding a part of the pad member from the back surface of the pad member toward the cover, so that the pad member and the cover are separate from each other. There is no need to provide a wall member.
In this case, since the pad member is often manufactured integrally using a mold and made of urethane foam, it is relatively difficult to project a part of the pad member integrally as in the feature of claim 2. It can be easily performed and can be performed simultaneously with the production of the pad member.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows a seat (a driver's seat and a passenger seat) of a passenger car. The seat includes a seat 1, a backrest 2, and a headrest 3. The seat 1 is configured by covering a surface of a pad member such as urethane foam with a skin made of air-permeable cloth (or made of vinyl leather or leather having many small holes).
[0014]
Next, the backrest 2 will be described.
As shown in FIGS. 2 and 3, the upper frame 4 in a gate shape in a front view, a vertical frame 5 connected to the right and left of the upper frame 4, a horizontal frame connected across the right and left vertical frames 5. Frames 6, 7; a cylindrical support portion 8 for mounting the headrest 3 connected to the upper frame 4; a spring 9, which is laid across the right and left vertical frames 5 and repeatedly bent in an S-shape; A frame body is constituted by the receiving portion 10 and the like for receiving the waist of the seated occupant connected to the lower horizontal frame 7.
[0015]
As shown in FIG. 4, slits are partially formed in the right and left vertical frames 5, and the slitted portions are bent inward. As a result, hook-shaped mounting portions 5a are formed on the right and left vertical frames 5, openings 5b are formed at the positions of the mounting portions 5a in the right and left vertical frames 5, and the springs 9 are mounted on the mounting portions 5a. Installed.
[0016]
As shown in FIGS. 2, 3, and 4, a pad member 11 made of urethane foam or the like is attached to a frame body, and is made of air-permeable cloth (or vinyl leather or leather having many small holes). A skin 12 covers the surface of the pad member 11. A cover 13 made of air-permeable cloth (or made of vinyl leather or leather provided with a large number of small holes) is connected to the skin 12, and the back surface of the pad member 11 is spaced a predetermined distance from the back surface of the pad member 11. Cover 13 is arranged so as to cover.
[0017]
As shown in FIGS. 2, 3, and 4, a part of the pad member 11 protrudes integrally from the back surface of the pad member 11 toward the cover 13, and the wall members 11a and 11b are formed integrally with the pad member 11. ing. The upper wall member 11a extends over substantially the entire width of the pad member 11, and is located above the upper spring 9. The lower wall member 11b spans the vicinity of the left and right centers of the pad member 11 and the right vertical frame 5, and is located below the upper spring 9. In this case, the wall members 11a and 11b are substantially in contact with the cover 13.
[0018]
As shown in FIGS. 1, 2, 3, and 4, a Y-shaped groove-shaped air passage 11c is provided on the surface of the pad member 11, and the air passage 11c is covered with a skin 12, and a lower portion of the air passage 11c is provided. An air blowing path 11d is provided to extend to the rear surface of the pad member 11. As shown in FIGS. 2, 3 and 4, a unit-shaped temperature control device 14 is provided, and the temperature control device 14 is attached to the upper spring 9, and the temperature control device 14 is connected between the back surface of the pad member 11 and the cover 13. It is located between them.
[0019]
As shown in FIGS. 2, 3, and 4, the first exhaust port 15b of the temperature control device 14 is inserted into the ventilation path 11d, and the temperature control device 14 (the first case 15 (see FIG. 4)) The second exhaust port 16b of the temperature control device 14 is inserted between the upper and lower wall members 11a and 11b in contact with the back surface and the upper spring 9. The temperature control device 14 (the second case 16 (see FIG. 4)) is in contact with the cover 13, and a mesh member having higher air permeability than the cover 13 is provided at a portion of the cover 13 facing the air inlet 16 c of the temperature control device 14. 13a is attached. Thus, a rectangular space A is formed by the back surface of the pad member 11, the upper and lower wall members 11a and 11b, the cover 13, the temperature control device 14, and the right vertical frame 5.
[0020]
With the above structure, as shown in FIGS. 3 and 4, air is sucked into the temperature control device 14 through the mesh member 13 a and the intake port 16 c, and the cold air (or hot air) heat-exchanged in the temperature control device 14. Is discharged from the first exhaust port 15b, is supplied from the ventilation path 11d to the ventilation path 11c, flows through the skin 12, and flows to the occupant sitting on the seat. Exhaust air (hot air or cold air) heat-exchanged in the temperature control device 14 is discharged from the second exhaust port 16b and supplied to the space A, and mainly flows to the rear through the cover 13 of the space A. . Further, the above-described exhaust air (warm air or cold air) flows to the right side through the opening 5b of the right vertical frame 5, the opening 11e provided in the pad member 11, and the skin 12.
[0021]
Next, the temperature control device 14 will be described.
As shown in FIGS. 5 and 6, the entire temperature control device 14 is covered by a first case 15 and a second case 16. A motor 17 is fixed to the center of the first case 15, a disk member 18a is attached to a drive shaft of the motor 17, and a number of fins 18b are provided on the disk member 18a to constitute a turbo fan 18. 17, the turbo fan 18 is driven to rotate around the rotation axis P1. In the second case 16, an intake port 16c is provided at a portion facing the rotation axis P1.
[0022]
As shown in FIGS. 5 and 6, a thin flat heat insulating material 19 is sandwiched between the first and second cases 15 and 16, and a portion of the turbo fan 18 in the heat insulating material 19 is opened in a circular shape. ing. A thin, flat, ring-shaped Peltier element 20 is mounted inside the heat insulator 19, and a thin, flat, ring-shaped heat insulator 19 is also mounted inside the Peltier element 20. As a result, in the first and second cases 15 and 16, portions other than the turbo fan 18 are separated by the heat insulating material 19 and the Peltier device 20.
[0023]
As shown in FIGS. 5 and 6, a base member 21 a made of a metal (for example, an aluminum alloy or the like) having a thin flat ring shape is fixed on the first case 15 side so as to be in contact with the heat insulating material 19 and the Peltier element 20. The base member 21a is provided with a large number of pins 21b made of metal (for example, an aluminum alloy) to form the first heat exchanger 21. On the second case 16 side, a base member 22a made of a metal (for example, aluminum alloy or the like) having a thin flat ring shape is fixed so as to be in contact with the heat insulating material 19 and the Peltier element 20, and the base member 22a is made of a metal (for example, The second heat exchanger 22 is provided with a large number of pins 22b of an aluminum alloy or the like.
[0024]
As shown in FIGS. 5 and 6, in the first and second heat exchangers 21 and 22, the pins 21 b and 22 b are arranged in a line at a predetermined interval (radial direction of the rotation axis P <b> 1). The rows of the pins 21b and 22b are arranged radially with respect to the rotation axis P1 at a predetermined interval (in the circumferential direction of the rotation axis P1). By arranging the second heat exchanger 22 on the second case 16 side, the position of the second heat exchanger 22 is closer to the intake port 16c than the position of the first heat exchanger 21.
[0025]
As shown in FIG. 6, the inner and outer diameters of the first and second heat exchangers 21, 22 and the number of pins 21b, 22b of the first and second heat exchangers 21, 22 are set to be the same. However, the height H2 of the second heat exchanger 22 is set higher than the height H1 of the first heat exchanger 21 (the height H1 of the first heat exchanger 21 and the height H1 of the second heat exchanger 21). The ratio of the height 22 to the height H2 is, for example, 1: 3).
[0026]
As shown in FIGS. 5 and 6, first and second exhaust paths 15 a and 16 a extend from a part of the outer peripheral portion of the first and second cases 15 and 16 in a tangential direction of rotation of the turbo fan 18. The first and second exhaust paths 15a, 16a are also partitioned by a heat insulating material 19, like the first and second cases 15, 16. A first exhaust port 15b in a direction orthogonal to the tangential direction of rotation of the turbofan 18 (parallel to the rotation axis P1) is provided in the first exhaust path 15a, and the tangential direction of rotation of the turbofan 18 (rotational axis) is provided. A second exhaust port 16b (in a direction orthogonal to the core P1) is provided in the second exhaust path 16a.
[0027]
As shown by the arrow X1 in FIG. 5, the turbo fan 18 is driven to rotate clockwise in FIG. 5, and the first and second cases 15, 16 and the first and second heat exchangers 21, 22 are rotated. The distance from the outer peripheral portion (the distance in the radial direction of the rotation axis P1) gradually increases along the direction of the arrow X1, and reaches the first and second exhaust paths 15a and 16a.
[0028]
As described above, since the height H2 of the second heat exchanger 22 is set to be higher than the height H1 of the first heat exchanger 21, the first case 15 and the first heat exchanger 21 The cross-sectional area of the space between the second case 16 and the outer peripheral part of the second heat exchanger 22 (rotational axis) is larger than the cross-sectional area of the space between the outer peripheral part (radial cross-sectional area of the rotation axis P1). The cross-sectional area of the core P1 in the radial direction) is large. Similarly, the sectional area of the second exhaust path 16a is larger than the sectional area of the first exhaust path 15a.
[0029]
With the above structure, it is assumed that a predetermined voltage is applied to the Peltier element 20 such that the first heat exchanger 21 is on the heat absorbing side and the second heat exchanger 22 is on the heat releasing side in the Peltier element 20. When the turbo fan 18 is rotationally driven in this state, as shown in FIG. 5 and FIG. 6, air is sucked from the intake port 16c, branched, and flows radially to the first and heat exchangers 21 and 22. The air that has flowed into the first heat exchanger 21 is cooled by heat exchange with the first heat exchanger 21, and is discharged from the first exhaust port 15b through the first exhaust path 15a. The air that has flowed into the second heat exchanger 22 becomes exhaust air (warm air) by heat exchange with the second heat exchanger 22, and is exhausted from the second exhaust port 16b through the second exhaust path 16a.
[0030]
Contrary to the above, when a predetermined voltage is applied to the Peltier element 20 so that the first heat exchanger 21 is on the heat dissipation side and the second heat exchanger 22 is on the heat absorption side, the temperature is increased. The wind is exhausted from the first exhaust port 15b, and the exhaust air (cool air) is exhausted from the second exhaust port 16b. If no voltage is applied to the Peltier element 20, the heat exchange function of the temperature control device 14 is stopped, and the normal-temperature air is discharged from the first exhaust port 15b.
[0031]
[Another embodiment of the invention]
Instead of the above-described [Embodiment of the invention], space A may be formed as shown in FIG.
As shown in FIG. 7, the wall members 11a and 11b on the back surface of the pad member 11 are eliminated, and the temperature control device 14 is attached to the lower spring 9. Between the back surface of the pad member 11 and the cover 13, a block-shaped wall member 23 such as slab urethane is provided between the temperature control device 14 and the horizontal frame 7, and between the temperature control device 14 and the right vertical frame 5. Installed between. Thereby, a square space A is formed by the back surface of the pad member 11, the wall member 23, the cover 13, the temperature control device 14, the right vertical frame 5, the horizontal frame 7, and the pad member 11 attached to the horizontal frame 7. Is formed.
[0032]
With the above structure, the exhaust air (hot air or cold air) heat-exchanged in the temperature control device 14 is discharged from the second exhaust port 16b and supplied to the space A, and mainly passes through the cover 13 of the space A. And flows backward. The right and left lower portions 11f of the pad member 11 are opened (the recliner portion of the seat and the right and left vertical frames 5 and the horizontal frames 7 are present) because it is necessary to arrange the recliner portion of the seat and the like. (Hot air or cold air) flows to the lower right side through the lower right portion 11f of the pad member 11.
[0033]
【The invention's effect】
According to the features of claim 1, in the vehicle seat structure, when a blower is provided on the back surface of the pad member constituting the seat back portion, the exhaust air from the air outlet of the blower is formed in a space having a relatively large area. With the configuration in which the air flows through the cover to the rear side, the exhaust air from the exhaust port of the air blower locally hits a part of a hand or a foot of an occupant sitting on the rear seat. It was possible to avoid the uncomfortable state and improve the comfort of the occupant sitting on the rear seat.
[0034]
According to the feature of claim 1, by forming a space in a limited portion of the back surface of the pad member, not all of the back surface of the pad member, the heat of the exhaust air from the exhaust port of the blower is reduced to the surface of the pad member. To prevent the heat from being transmitted to the entire surface of the vehicle or the heat from the entire surface of the pad member being taken away by the exhaust air from the exhaust port of the air blower, thereby improving the comfort of the occupant sitting on the seat. Could be enhanced.
[0035]
According to the feature of claim 1, a space is formed by using a pad member which is an existing member and a cover having air permeability which may be called an existing member, and a duct or a tube is provided at an exhaust port of the blower. It is not necessary to provide a configuration for extending the duct and the tube by connecting the two, which is advantageous in terms of simplifying the structure and reducing the production cost.
[0036]
According to the feature of the second aspect, the "effect of the invention" of the above-mentioned claim 1 is provided similarly to the case of the first aspect, and in addition to the "effect of the invention", the following "effect of the invention" It has.
According to the feature of claim 2, the wall member is constituted by integrally projecting a part of the pad member from the back surface of the pad member toward the cover, and the wall member separate from the pad member and the cover is formed. The point that there is no need to provide and that a part of the pad member can be made to protrude integrally can be relatively easily performed, and can be performed simultaneously with the production of the pad member, thereby simplifying the structure and reducing the production cost. In terms of
[Brief description of the drawings]
1 is an overall perspective view of a seat; FIG. 2 is a rear view of a seat back portion; FIG. 3 is a longitudinal side view of a seat back portion; FIG. 4 is a cross-sectional plan view of a seat back portion; FIG. FIG. 6 is a cross-sectional plan view of a temperature control device. FIG. 7 is a rear view of a seat back portion in another embodiment of the invention.
2 Backrest part 11 Pad members 11a, 11b, 23 Wall member 13 Cover 14 Blower 15b Blower 16b of blower Air outlet A of blower Space

Claims (2)

The back surface of the pad member constituting the back portion of the seat is configured to be covered at a predetermined interval from the back surface of the pad member by a cover having air permeability,
A blower is provided between the back surface of the pad member and the cover, and configured to supply air from a blower port of the blower to the surface of the pad member,
A wall member extending between the back surface of the pad member and the cover is provided between the back surface of the pad member and the cover, and a space is formed by the back surface and the cover of the pad member, and the wall member. A vehicle seat structure configured to supply exhaust air from the vehicle to the space. 2. The vehicle seat structure according to claim 1, wherein the wall member is configured by integrally projecting a part of the pad member from the back surface of the pad member toward the cover. 3.

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