JP2016147616A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable intake and exhaust of a seat cushion and a seat back with a small number of components and with a relatively simple constitution in a vehicle seat.SOLUTION: A seat back of a vehicle seat comprises: a seat cover which is arranged on the surface on which an occupant leans and which has air permeability; a pad member whose surface is covered with the seat cover and in which a plurality of ventilation holes 123 are formed; a lumbar mechanism component which supports the lumbar of the occupant sitting on the seat cushion; an air blower which is arranged on the rear surface side of the pad member; and a cover which covers the air blower and the lumbar mechanism component 126 and forms the sealed space with the rear surface side of the pad member. A seat cushion comprises: a seat cover which is arranged on the surface on which the occupant sits and which has air permeability; and a pad member whose surface is covered with the seat cover and in which a ventilation groove 113 is formed. A duct is configured to connect the grooves formed on the air blower of the seat back and the pad member of the seat cushion by penetrating the cover.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle seat such as a passenger car, and more particularly to a vehicle seat having a blowing function for sending air (wind) to a seat on which an occupant is seated.

  In order to maintain the comfort of the seat cushion on which the vehicle seat occupant sits and the seat back on which the occupant seated on the seat cushion sits, the air is sucked from the surface of the seat and the inhaled air is separated from the seat. Means for discharging from various places are used.

  As an example of such a configuration, in Patent Document 1, an air exhaust is attached to the lower side of the seat cushion, and the air exhaust is operated to open the seat cushion and the seat from a hole formed near the side surface of the seat cushion and the seat back. A configuration is described in which air near the surface of the bag is sucked and the sucked air is blown out of the exhaust fan.

JP 2014-94623 A

  As a configuration in which air is sucked from a seat cushion or a seat back and the sucked air is blown to the outside, in Patent Document 1, an air intake device is installed under the seat cushion, and the air intake device, the seat cushion, and the seat back are ducted. The configuration connected with is described.

  The duct connected to the seat back is configured to be connected in communication with a ventilation groove having a plurality of air exhaust passages penetrating to the front surface formed in the pad of the seat back.

  A drive mechanism for sliding the seat back and forth and a drive mechanism for reclining the seat back are arranged under the seat cushion where the occupant sits. Many mechanisms are installed in a relatively small space. Yes. For this reason, in order to arrange the intake device and the duct connecting to it at the lower part of the seat cushion, the arrangement including other parts becomes complicated, the number of parts increases, and the assembly takes time and costs. There is a problem.

  In addition, the seat back is provided with a lumbar mechanism part for supporting the seated occupant's lumbar vertebrae.To arrange the duct so as not to interfere with this lumbar mechanism part, the shape of the duct is devised. There must be.

  Furthermore, in order to connect the seat cushion and the seat back from the intake device, a plurality of ducts must be provided, which increases the number of parts and becomes a bottleneck in assembling costs.

  The present invention solves the above-described problems of the prior art, and provides a vehicle seat that enables intake and exhaust of a seat cushion and a seat back with a relatively simple configuration with a small number of parts. is there.

  In order to solve the above problems, in the present invention, for a vehicle including a seat cushion on which an occupant sits, a seat back on which a occupant sitting on the seat cushion leans back, and a duct connecting the seat cushion and the seat back. In the seat, the seat back includes a seat cover that is disposed on a surface on which an occupant is seated and has air permeability, a pad member that is covered with a seat cover and has a plurality of ventilation holes, and a seat cushion. A lumbar mechanism component for supporting a seated occupant's lumbar spine, a blower disposed on the back side of the pad member, and a cover that covers the blower and the lumbar mechanism component to form a sealed space with the back side of the pad member The seat cushion is arranged on the surface on which the occupant sits and has a breathable seat cover, and the surface is covered with a seat cover and a ventilation groove is formed. It is and a pad member which duct is configured to connect between the grooves formed in the pad material of the blower and the seat cushion of the seat back penetrate the cover.

  In order to solve the above problems, in the present invention, in a vehicle seat provided with a seat cushion on which an occupant sits, a seat back on which an occupant sitting on the seat cushion leans back, and a blower, the seat back is A seat cover that is disposed on the surface on which the occupant is seated and has air permeability, a pad member that is covered with a seat cover and has a plurality of holes for ventilation, and a lumbar spine of the occupant sitting on the seat cushion A seat cover that has a lumbar mechanism part for supporting, a cover that covers the lumbar mechanism part and forms a sealed space and a back surface side of the pad member, and a seat cushion that is disposed on a surface on which an occupant sits and has air permeability And a pad member having a surface covered with a seat cover and formed with a groove for ventilation. The blower is connected to the groove of the pad member of the seat cushion. A first duct, and configured to have a second duct connected with the cover of the seat back.

  According to the present invention, it is possible to provide a vehicle seat that allows intake and exhaust of a seat cushion and a seat back with a relatively simple configuration with a small number of parts.

1 is a perspective view showing a schematic configuration of a vehicle seat according to the present invention. It is sectional drawing which shows the structure of the outline of the vehicle seat which concerns on Example 1 of this invention. It is a perspective view which shows the structure of the outline of the pad member of the vehicle seat which concerns on Example 1 of this invention. It is sectional drawing which shows the structure of the outline of the vehicle seat which concerns on Example 2 of this invention. It is sectional drawing which shows the structure of the outline of the vehicle seat which concerns on Example 3 of this invention. It is sectional drawing which shows the structure of the outline of the vehicle seat which concerns on Example 4 of this invention.

  In the present invention, the back surface of the seat back is hermetically sealed, the blower and the cushion seat are connected by a duct, and air is sucked in or blown out from the surface of the seat cushion through the duct. By adopting a structure that does not use a duct for sucking air from or blowing out air, it is possible to suck air from both the seat cushion side and the seat back side by using one blower and one duct. The air can be blown out.

  In the present invention, air is sucked from the surface of the seat cushion and blown out from the surface of the seat back, or conversely, air from the surface of the seat cushion using one blower and one duct. The air balloon and the air suction from the surface of the seat back can be performed simultaneously.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows the appearance of a vehicle seat 100 that is the subject of the present invention. The vehicle seat 100 includes a seat cushion 110 on which an occupant (not shown) sits, a seat back 120 on which the occupant sitting on the seat cushion 110 turns his back, and a headrest 130 that supports the head of the occupant.

  FIG. 2 schematically shows cross sections of the seat cushion 110 and the seat back 120 of the vehicle seat 100 according to the present embodiment. In FIG. 2, the display of the headrest 130 and the display of the mechanical components of the seat cushion 100 and the seat back 120 are omitted for the sake of simplicity.

  The seat cushion 110 includes a seat cover 111 having air permeability and a pad member 112 made of urethane. The pad member 112 has a groove 113 for blowing air or sucking air. The groove 113 serves as an air passage when air is blown out or sucked into the surface of the seat cushion 110 via the air-permeable seat cover 111 covering the surface.

  The seat back 120 includes a seat cover 121 having air permeability and a pad member 122 formed of urethane. The pad member 122 has a hole 123 for blowing out air or sucking in air.

  A back cover 124 is attached to the back side of the seat back 120, and a space 125 surrounded by the pad member 122 and the back cover 124 is sealed. In the sealed space 125, a lumbar mechanism component 126, which is a component of the lumbar mechanism, a blower 210, and a duct 213 connected to the exhaust side of the blower 210 are installed. A sirocco fan is used as the blower 210. The air inlet 211 of the blower 210 is open to the sealed space 125 side. Actually, various mechanical parts are also installed in the sealed space 125, but in order to simplify the explanation, these parts are not shown in FIG.

  The duct 211 connected to the blower 210 extends through the back cover 124 and extends outward, and its tip extends to the inside of the groove 113 formed in the pad member 112 on the seat cushion 110 side, not shown. It is fixed by means.

  In such a configuration, when the blower 210 is operated, the blower 210 is a space closed by the back cover 124 as indicated by an arrow A2 opened in the space 125 closed by the back cover 124 from the air inlet 211. The air in 125 is sucked and the air is sent to the duct 211 connected to the exhaust side. The air sent into the duct 211 enters the inside of the groove 113 of the seat cushion 110 as indicated by an arrow A3. The air that has entered the groove 113 is blown out from the breathable seat cover 111 to the surface side of the seat cover 121 as indicated by an arrow A4.

  On the other hand, the pressure in the space 125 closed by the back cover 124 into which air has been sucked in by the blower 210 is lower than the atmospheric pressure. As a result, air is sucked through a large number of holes 123 formed in the pad member 122 through the air-permeable seat cover 121 of the seat back 120 as indicated by an arrow A1.

  In this way, air is sucked into the space 125 closed by the back cover 124 from the seat cover 121 side of the seat back 120 and is sent to the seat cushion 110 side by the duct 213 to be seat cover 111 of the seat cushion 110. By blowing out from the air, the suction of air in the seat back 120 and the blowing out of air in the seat cushion 110 can be performed simultaneously using only one blower 210 and one duct 213.

  In the configuration shown in FIG. 2, an example is shown in which the blower 210 is disposed below the lumbar mechanism component 126 in the sealed space 125 on the back surface of the seat back 120. You may arrange | position above this.

  FIG. 3 is a perspective view of the pad member 112 on the seat cushion 110 side and the pad member 122 on the seat back 120 side. An air blowing groove 113 is formed in the pad member 112 on the seat cushion 110 side. The pad member 122 on the seat back 120 side has a large number of air suction holes 123 formed therein. The air suction hole 123 is formed through the pad member 122.

  As described above, according to the present embodiment, since the back surface of the seat back 120 on which the lumbar mechanism component 126 and the blower 210 are arranged is sealed, a duct for sucking air from the surface of the seat back 120 is provided. This eliminates the need for air suction in the seat back 120 and air blowing out in the seat cushion 110 with a simpler structure using one blower 210 and one duct 213.

  As a second embodiment of the present invention, a case reverse to that of the first embodiment, that is, a configuration in which air is sucked from the seat back 110 side and air is blown out from the seat back 120 side, with reference to FIG. explain. In the configuration shown in FIG. 4, the same components as those described with reference to FIG. 2 in the first embodiment are denoted by the same reference numerals, and description thereof is omitted to avoid duplication. The configuration shown in FIG. 4 is different from the configuration described in FIG. 2 in that the duct 214 is attached to the air inlet 211 side of the blower 210. As the blower 210, a sirocco fan is used as in the case of the first embodiment.

  In the configuration shown in FIG. 4, when the blower 210 is operated, the blower 210 passes through the duct 214 connected to the air inlet 211 and the groove 113 of the seat cushion 110 from the breathable seat cover 111 as indicated by an arrow B1. Then, the air on the surface side of the seat cover 121 is sucked.

  The air sucked from the front surface side of the seat cover 121 passes through the duct 214 as shown by an arrow B2, is sucked into the blower 210 from the air inlet 211 as shown by an arrow B3, and is back as shown by an arrow B4. It is discharged into the space 125 closed by the cover 124.

  In the space 125 closed by the back cover 124 from which air is discharged by the blower 210, the atmospheric pressure becomes higher than the atmospheric pressure. As a result, air is blown out of the seat back 120 through the numerous holes 123 formed in the pad member 122 through the breathable seat cover 121 of the seat back 120 as indicated by the arrow B5.

  In this way, the air sucked from the seat cushion 110 side is discharged into the space 125 closed by the back cover 124 via the duct 214 and blown from the seat back 120 side, whereby the air in the seat cushion 110 is discharged. Suction and air blowing in the seat back 120 can be performed simultaneously by using only one blower 210 and one duct 214.

  In addition, about the groove | channel 113 formed in the pad member 112 by the side of the seat cushion 110 and the hole 123 formed in the pad member 122 by the side of the seat back 120 in a present Example, it is the same as what was demonstrated using FIG. It is.

  As described above, according to the present embodiment, since the back surface of the seat back 120 on which the lumbar mechanism component 126 and the blower 210 are arranged is sealed, a duct for blowing out air from the surface of the seat back 120 is provided. This eliminates the need for air suction in the seat cushion 110 and air blowing out in the seat back 120 with a simpler structure using one blower 210 and one duct 213.

  In the first embodiment, an example in which air is blown from the seat cushion 110 and air is sucked from the seat back 120 will be described. In the second embodiment, air is sucked from the seat cushion 110 and air is blown from the seat back 120 simultaneously. In the present embodiment, the rotation direction of the blower is switched, and the air blowing in the seat cushion 110 and the air suction in the seat back 120 are simultaneously performed and the air suction in the seat cushion 110 is performed. An example of switching between simultaneous air blowing in the seat back 120 will be described with reference to FIG.

  In the configuration shown in FIG. 5, the same components as those described in the first and second embodiments are denoted by the same reference numerals. The blower 220 is different from the first and second embodiments. That is, in the first and second embodiments, an example in which a sirocco fan is used as the blower 210 has been described. However, in this embodiment, an axial fan is used as the blower 220. When an axial fan is used as a blower, the rotation direction of the axial fan can be changed (reverse rotation) by switching the polarity of the voltage applied to the axial fan, thereby reversing the direction of the flowing air. it can.

  In the configuration shown in FIG. 5, by rotating the axial fan of the blower 220 forward, air is sucked from the seat back 120 and air is blown from the seat cushion 110 as in the case described in the first embodiment.

  On the other hand, by reversing the axial fan of the blower 220, air is sucked from the seat cushion 110 and air is blown from the seat back 120, as in the case described in the second embodiment.

  In addition, about the groove | channel 113 formed in the pad member 112 by the side of the seat cushion 110 and the hole 123 formed in the pad member 122 by the side of the seat back 120 in a present Example, it is the same as what was demonstrated using FIG. It is.

  Thus, by using an axial fan for the blower 220, the direction in which air is sent out from the blower 220 can be changed by switching the polarity of the voltage applied to the blower 220. Accordingly, in the same configuration, it is possible to switch between air suction and air blowing on the surfaces of the seat cushion 110 and the seat back 120.

  In Embodiments 1 to 3, the description has been made with the configuration in which the blower is disposed on the seat back 120 side. However, in this embodiment, the case where the blower is installed on the seat cushion 110 side will be described.

  FIG. 6 shows the configuration of the vehicle seat in this embodiment. In this embodiment, the blower 230 is installed on the lower side of the seat cushion 110, the air inlet 231 of the blower 230 and the groove 113 of the seat cushion 110 are connected by a duct 232, and the pad member 122 of the seat back 120 A space 125 surrounded by the back cover 124 and the exhaust side of the blower are connected by a duct 233. Note that a sirocco fan is used as the blower 230.

  When the air blower 230 is operated in such a configuration, the arrow C1 from the breathable seat cover 111 passes through the duct 232 connected to the air inlet 231 and the groove 113 of the seat cushion 110 as in the case of the second embodiment. As described above, the air on the surface side of the seat cover 121 is sucked.

  The air sucked from the front surface side of the seat cover 121 passes through the duct 232 as shown by an arrow C2, is sucked into the blower 230 from the air inlet 231 as shown by an arrow C3, and is back as shown by an arrow C4. It is discharged into the space 125 closed by the cover 124.

  In the space 125 closed by the back cover 124 from which air has been discharged by the blower 230, the atmospheric pressure becomes higher than the atmospheric pressure. As a result, air is blown out of the seat back 120 from the numerous holes 123 formed in the pad member 122 through the air-permeable seat cover 121 of the seat back 120 as indicated by the arrow C5.

  In this manner, air sucked from the seat cushion 110 side through the duct 232 is discharged into the space 125 closed by the back cover 124 through the duct 233 and blown out from the seat back 120 side. The suction of air in the seat cushion 110 and the blowing of air in the seat back 120 can be performed simultaneously by only one blower 230.

  In addition, about the groove | channel 113 formed in the pad member 112 by the side of the seat cushion 110 and the hole 123 formed in the pad member 122 by the side of the seat back 120 in a present Example, it is the same as what was demonstrated using FIG. It is.

  As described above, according to the present embodiment, the duct is attached to the sealed space on the back surface of the seat back 120 and connected to the blower 230 installed on the lower side of the seat cushion 110. A duct for blowing out air is no longer necessary, and air suction in the seat cushion 110 and air blowing out in the seat back 120 can be performed simultaneously with a simpler structure using a single blower 210.

  In the later generation shown in FIG. 6, by reversing the attachment positions of the ducts 232 and 233 to the blower 230, as described in the first embodiment, from the seat cover 121 side of the seat back 120. Air is sucked into the space 125 closed by the back cover 124, sent to the blower 230 through the duct 213, sent from the blower 230 to the seat cushion 110 side through the duct 232, and ejected from the seat cover 111 of the seat cushion 110. Can be made.

  Further, by using an axial fan as the blower 230 instead of the sirocco fan in the same manner as in the third embodiment, the direction in which air is sent out from the blower 230 can be changed by switching the polarity of the voltage applied to the blower 230. In the same configuration, it is possible to switch between air suction and air blowing on the surfaces of the seat cushion 110 and the seat back 120.

  As mentioned above, although the invention made by the present inventor has been specifically described based on the embodiments, it is needless to say that the present invention is not limited to the above embodiments and can be variously modified without departing from the gist thereof. Yes.

  DESCRIPTION OF SYMBOLS 100 ... Vehicle seat 111, 121 ... Seat cover 112, 122 ... Pad member 113 ... Groove 120 ... Seat back 124 ... Back cover 126 ... Lumber mechanism component 210, 220 , 230 ... Blowers 213, 214, 221, 232, 233 ... Duct

Claims (9)

A seat cushion on which an occupant sits,
A vehicle seat comprising a seat back on which an occupant sitting on the seat cushion leans back, and a duct connecting the seat cushion and the seat back,
The seat back is
A seat cover which is disposed on a surface on which the occupant falls and has air permeability;
A pad member whose surface is covered with the seat cover and a plurality of holes for ventilation are formed;
Lumber mechanism parts for supporting the lumbar spine of the occupant sitting on the seat cushion,
A blower disposed on the back side of the pad member;
A cover that covers the blower and the lumbar mechanism component and forms a sealed space with the back side of the pad member;
The seat cushion is
A seat cover that is disposed on a surface on which an occupant is seated and has air permeability;
A pad member whose surface is covered with the seat cover and a groove for ventilation is formed,
The duct is configured to connect between a blower of the seat back and a groove formed in a pad material of the seat cushion via the cover.   The vehicle seat according to claim 1, wherein the duct is connected to an air inlet of the blower.   The vehicle seat according to claim 1, wherein the duct is connected to an exhaust side of the blower. A seat cushion on which an occupant sits,
A vehicle seat provided with a seat back and a blower on which a passenger sitting on the seat cushion can lean back,
The seat back is
A seat cover which is disposed on a surface on which the occupant falls and has air permeability;
A pad member whose surface is covered with the seat cover and a plurality of holes for ventilation are formed;
Lumber mechanism parts for supporting the lumbar spine of the occupant sitting on the seat cushion,
A cover that covers the lumbar mechanism component and forms a sealed space with the back side of the pad member;
The seat cushion is
A seat cover that is disposed on a surface on which an occupant is seated and has air permeability;
A pad member whose surface is covered with the seat cover and a groove for ventilation is formed,
The blower is
A first duct connected to the groove of the pad member of the seat cushion;
A vehicle seat comprising a second duct connected to the cover of the seat back.   The vehicle seat according to claim 4, wherein the blower is disposed under the seat cushion.   6. The vehicle seat according to claim 4, wherein the first duct is connected to an air inlet of the blower, and the second duct is connected to an exhaust side of the blower. A vehicle seat.   6. The vehicle seat according to claim 4, wherein the first duct is connected to an exhaust side of the blower, and the second duct is connected to an intake port of the blower. A vehicle seat.   5. The vehicle seat according to claim 1, wherein a sirocco fan is used as the blower.   5. The vehicle seat according to claim 1, wherein an axial fan is used as the blower.

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