JP2016153266A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suck or blow out air from the wide region of a seat back surface including the lower part of a seat back having a lumber mechanism.SOLUTION: A vehicle seat includes a seat cushion on which an occupant sits, and a seat back on which the back of the occupant sitting on the seat cushion rests. The seat back includes a seat cover disposed on a surface on which the back of the occupant rests and having air permeability, a plurality of pad members having surfaces thereof covered with the set covers and formed in vertical and horizontal directions, a lumber mechanism component for supporting the lumber spine of the occupant sitting on the seat cushion, a blower disposed on the rear surface side of the pad member, a duct for connecting at least one of a plurality of ventilation holes provided in the pad members above the lumber mechanism part to the blower, and a cover covering the blower, the duct, and the lumber mechanism component to form a rear surface side and a sealed space of the pad member.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, Patent Document 1 discloses that a seat fan is attached to the back side of the seat back through a suction duct through a hole formed near the side surface of the seat back surface in a state where the fan is rotated. A configuration is described in which the air in the vicinity of the surface is sucked and the sucked air is blown out to the surface of the back sheet through a hole formed in the central portion through a blowing duct.

JP 2010-52494 A

  A lumbar mechanism for supporting the lumbar spine of the occupant when the occupant seated on the seat cushion leans back is provided at the lower part of the seat back. The upper part (upper side) of the back of the seat back has a relatively large space, and air can be sucked and blown from the seat back surface using a blower and a duct. However, the lower part (lower side) of the back of the seat back has a lumbar mechanism, so the space is relatively narrow and it is difficult to arrange the duct.

  Therefore, as described in Patent Document 1, air can be sucked and blown from the seat back surface using a blower and a duct only on the upper side of the seat back, and a lumbar mechanism is installed. In the lower part of the seat back, air cannot be sucked or blown from the surface using a duct.

  The present invention is for a vehicle that solves the above-described problems of the prior art and makes it possible to suck and blow air from a wide area of the seat back surface including the lower portion of the seat back where the lumbar mechanism is installed. To provide a sheet.

  In order to solve the above-described problems, in the present invention, in a vehicle seat including a seat cushion on which an occupant sits and a seat back on which the occupant sitting on the seat cushion leans back, the occupant A seat cover that is placed on the side that can be folded and has air permeability, a pad member that is covered with a seat cover and has a plurality of ventilation holes in the vertical and horizontal directions, and a lumbar vertebra of an occupant sitting on the seat cushion Connecting the lumbar mechanism component to support, the blower arranged on the back side of the pad member, and at least one hole above the lumbar mechanism component among the plurality of ventilation holes provided in the pad member and the blower And a cover that covers the blower, the duct, and the lumbar mechanism parts and forms a sealed space with the back side of the pad member.

  In order to solve the above-described problems, in the present invention, in a vehicle seat including a seat cushion on which an occupant sits and a seat back on which the occupant sitting on the seat cushion leans back, the seat back is A seat cover that is disposed on the backside and has air permeability, a pad member that is covered with the seat cover and has a plurality of holes for ventilation, and a blower that is disposed on the back side of the pad member; A ventilation hole having a duct connecting at least one hole and a blower at an upper part of the pad member among a plurality of ventilation holes provided in the pad member, and connecting to a duct formed at the upper part of the pad member Through either the air suction from the surface of the seat cover or the air blowing using a duct connected to the blower, and a ventilation member formed at the bottom of the pad member And to perform either suction or air outlet of the air from the surface of the seat cover without using the duct through.

  According to the present invention, air can be sucked and blown from a wide area of the seat back surface including the lower portion of the seat back where the lumbar mechanism is installed.

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 seat back 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 seat back 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 seat back 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 seat back of the vehicle seat which concerns on Example 3 of this invention.

  In the present invention, the back surface of the seat back has a sealed structure, and at the top of the seat back, either air is sucked from the surface or air is blown out using a duct, and the duct is not used at the bottom of the seat back. In addition, either air suction or air blowing from the seat back surface is performed. As a result, it is possible to suck and blow air from the seat back surface even at the lower part of the seat back where the lumbar mechanism is installed. Enabled to blow out air.

  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 a cross-section of the seat back of the vehicle seat 100. 121 is a seat cover of the seat back 120 and has air permeability. Reference numeral 122 denotes a pad member of the seat back 120 made of urethane. An air blowing hole 123 is formed above the pad member 122, and a number of air suction holes 124 are formed below the pad member 120.

  In the configuration shown in FIG. 2, the illustration of the mechanical parts is omitted for the sake of simplicity.

  On the back side of the seat back 120, there are an air duct 211, an air blower 212, and a lumbar mechanism part 213 which is a part of the lumbar mechanism, the front end part of which is fitted in an air blowing hole 123. Has been. A sirocco fan is used as the blower 212. When the blower 212 using this sirocco fan is operated, air is sucked in from the left side surface of the blower 212 in FIG. 2, and the sucked air is discharged to the side of the blower duct 211 attached to the upper surface of the blower 212. It is.

  In such a configuration, when the blower 212 is operated, the blower 212 sucks air in the space 214 closed by the back cover 210 and sends the air to the blower duct 211 side. The air is blown out from the breathable seat cover 121 to the surface side of the seat cover 121 as indicated by an arrow A through the hole 123.

  The front end portion of the blowing duct 211 is fitted so that there is no gap in the air blowing hole 123. Further, a portion of the air duct 211 connected to the air blower 212 is in close contact with the air blower 212 side. Thereby, the space 214 inside the back cover 210 is separated from the inside of the air duct 211 and the outside of the air duct 211, and can be in different pressure states. In this state, the air sent from the blower 212 to the blower duct 211 passes through the air blowout hole 123 without returning again into the space 214 closed by the back cover 210, and the front side of the seat cover 121. Is blown out.

  On the other hand, in the space 214 closed by the back cover 210 into which air has been sucked, the air pressure becomes lower than the atmospheric pressure, and a large number of air sucking air formed on the lower side of the pad member 120 via the breathable seat cover 121. Air is sucked from the hole 124 as shown by the arrow B.

  In this way, by using the air duct 211 in the space 214 closed by the back surface cover 210, the air blower 212 is operated to pass the air blowing hole 123 from the air duct 211 to the front surface side of the seat cover 121. At the same time, air is sucked into the space 214 closed by the back cover 210 from a large number of air suction holes 124 formed on the lower side of the pad member 120 through the breathable seat cover 121. Can be performed efficiently and stably.

  FIG. 3 shows a perspective view of the pad member 122. An air blowing hole 123 is formed in the upper part of the pad member 122, and a number of air sucking holes 124 are formed in the lower part. The air blowing hole 123 and the air suction hole 124 are formed through the pad member 122.

  In the example shown in FIG. 3, only one air blowing hole 123 is formed, but a plurality of air blowing holes 123 may be provided. In this case, the front end portion of the air duct 211 is branched by the number of the air blowing holes 123 formed in the pad member 122 so that the respective front end portions are fitted in the air blowing holes 123 so that there is no gap. To.

  Further, in the example shown in FIG. 3, an example in which a plurality of air suction holes 124 are arranged below the pad member 122 is shown, but the air suction holes 124 are arranged in the vicinity of the air blowing holes 123 or the pads. You may make it provide also in the center part of the member 122. FIG. Further, air suction holes 124 may be provided on the entire surface of the pad member 122.

  Thus, by separating the air sent by the blower 212 and the air sucked into the blower 212 using the blower duct 211, it becomes unnecessary to arrange a duct on the air suction side of the blower 212, and the lumbar mechanism component 213. An air suction hole 124 can be provided in the lower portion of the seat back 120 where the air bag is installed.

  As a result, the air blowing hole 123 and the air sucking hole 124 can be provided at an arbitrary position with respect to the seat back 120, preventing the heat from burning around the occupant's waist and efficiently dehumidifying. Made it possible to do.

  In the first embodiment, the case where the air duct 211 is used has been described. In this embodiment, an example using the air suction duct will be described with reference to FIG.

  FIG. 4 is a sectional view of the seat back 120-1 according to the present embodiment. In the configuration shown in FIG. 4, the same components as those described in the first embodiment are denoted by the same reference numerals. The configuration of the back side of the seat back 120-1 is different from the first embodiment. The hole 123 has been described as a hole for air blowing in the first embodiment, but is a hole for air suction in the second embodiment. In addition, the numerous holes 124 are described as air suction holes in the first embodiment, but in the second embodiment, they are described as air blowing holes.

  In the configuration shown in FIG. 4, on the back side of the seat back 120-1, there are an air suction duct 221, a blower 222, and a lumbar mechanism component 213 whose front end portions are fitted in air suction holes 123. It is arranged inside a space 224 that is sealed and closed by the back cover 220. The air suction duct 221 is connected in close contact with the air suction side of the blower 222, and the air discharge side of the blower 222 is opened to a space 224 that is sealed and closed by the back cover 220. As the blower 222, a sirocco fan is used as in the first embodiment.

  When the blower 222 is operated in such a configuration, the blower 222 passes through the air suction hole 123 from the air suction duct 221 and passes through the air-permeable seat cover 121, and the arrow C from the surface side of the seat cover 121 Air is inhaled as shown in. The sucked air is discharged from the blower 222 into a space 224 that is sealed and closed by the back cover 220. The inside of the space 224 sealed and closed by the back cover 220 from which the air has been discharged from the blower 222 becomes higher than the atmospheric pressure, and the air blowing hole 124 passes through the breathable seat cover 121. It is blown out to the surface side of the seat cover 121.

  The tip of the air suction duct 221 is fitted so that there is no gap in the air suction hole 123. Thus, the air discharged from the blower 222 into the space 224 sealed and closed by the back cover 220 passes through the air blowing hole 124 and returns to the air suction duct 221 side by the arrow D. As shown, it is blown out to the surface side of the seat cover 121.

  In this manner, by using the air suction duct 211 in the space 214 closed by the back cover 210, the blower 222 is operated and the air suction duct 221 passes through the air suction hole 123 and the seat cover 121. At the same time as air is sucked in from the front surface side, air is blown out from the numerous air blowing holes 124 to the front surface side of the seat cover 121 through the breathable seat cover 121 into the space 214 closed by the back cover 210. This can be done efficiently and stably.

  The arrangement of the holes 123 and 124 formed in the pad member 122 in the present embodiment is the same as that described with reference to FIG. 3 in the first embodiment, and only the action of blowing or sucking air is different. The description is omitted.

  According to the present embodiment, the air blowing hole 124 and the air sucking hole 123 can be provided at an arbitrary position with respect to the seat back 120-1, and the heat generated around the occupant's waist is reduced. It was possible to prevent and dehumidify efficiently.

  In the first embodiment, an example using the blower duct 211 is described, and in the second embodiment, an example using the air suction duct 221 is described. However, in this embodiment, one duct includes a blower duct and an air suction duct. An example in the case of serving also as a duct will be described.

  FIG. 5 is a cross-sectional view of the seat back 120-2 according to the present embodiment. In the configuration shown in FIG. 5, the same components as those described in Example 1 are denoted by the same reference numerals. The configuration of the back side of the seat back 120-2 is different from the first embodiment. In the first embodiment, the hole 123 has been described as an air blowing hole. However, in the third embodiment, the hole 123 serves as both an air blowing hole and an air suction hole. In the first embodiment, the numerous holes 124 are described as air suction holes. However, in the third embodiment, the air blowing holes and the air suction holes are also used.

  In the configuration shown in FIG. 5, on the back side of the seat back 120-2, the front end portion is fitted in the hole 123 that serves as both the air suction hole and the air suction hole, for air suction and for air blowing There are a duct 231, a blower 232, and a lumbar mechanism component 213 that also serve as the components, and these are arranged in a space 234 that is sealed and closed by the back cover 230. The duct 231 is connected to one side of the blower 232, and the other side of the blower 232 is opened to a space 234 that is sealed and closed by the back cover 230. In the first and second embodiments, the case where a sirocco fan is used as the blower 212 or 222 has been described. However, in this embodiment, an axial fan is used.

  The blower 232 using the axial flow fan can change the direction of rotation of the fan by changing the polarity of electricity, thereby changing the direction of air flow.

  That is, by rotating the axial fan of the blower 232 in the normal direction, the air in the space 234 sealed and closed by the back cover 230 is sucked by the blower 232 as in the case described in the first embodiment. From the blower 232 to the duct 231 side. The air blown to the side of the duct 231 passes through the hole 123 and is blown from the surface side of the seat cover 121 as indicated by an arrow E through the breathable seat cover 121.

  The front end portion of the duct 231 is fitted so that there is no gap in the hole 123. As a result, the air sent from the blower 232 to the duct 231 passes through the hole 123 without returning again into the space 234 closed by the back cover 230, and the air is shown on the surface side of the seat cover 121 as indicated by an arrow E. Blown out.

  On the other hand, in the space 234 closed by the back cover 230 into which air has been sucked, the atmospheric pressure becomes lower than the atmospheric pressure, and a large number of three holes 124 formed below the pad member 120 via the air-permeable seat cover 121. As shown by the arrow F, air is inhaled.

  Further, by reversing the axial fan of the blower 232, the air on the duct 231 side is sucked by the blower 232 as in the case described in the second embodiment, and the sucked air is on the side opposite to the duct 231. The air is blown out into the space 234 sealed and closed by the back cover 230. That is, by reversing the axial fan of the blower 232, air is sucked from the front surface side of the seat cover 121 through the hole 123 from the duct 231, and at the same time, the air inside the space 234 closed by the back cover 230 is Air is blown out from the numerous holes 124 toward the surface of the air-permeable seat cover 121 in the direction opposite to the direction of the arrow F.

  Thus, by using an axial fan for the blower 232, the direction in which air is sent out from the blower 232 can be changed by changing the polarity of the voltage applied to the blower 232. Thereby, on the surface of the seat back, it is possible to switch between a position for sucking air and a position for blowing air.

  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 110 ... Seat cushion 120 ... Seat back 121 ... Seat cover 122 ... Pad member 123, 124 ... Hole 210, 220, 230 ... Back cover 211, 221, 231 ... Duct 212, 222, 232 ... Blower 213 ... Lumber mechanism parts

Claims (6)

A seat cushion on which an occupant sits,
A vehicle seat comprising a seat back 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 ventilation holes are formed in the vertical and horizontal directions;
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 duct connecting at least one hole above the lumbar mechanism component among the plurality of ventilation holes provided in the pad member and the blower;
A vehicular seat comprising a cover that covers the blower, the duct, and the lumbar mechanism component and forms a sealed space and a back surface side of the pad member.   The vehicle seat according to claim 1, wherein by operating the blower, a plurality of ventilation holes formed in the pad member from a surface of the seat cover other than holes connected to the duct. Air is sucked into a sealed space formed by the back side of the pad member and the cover through a hole, and the introduced air is connected to the duct provided in the pad member from the blower through the duct. A vehicle seat, wherein the vehicle seat is blown out from the hole to the surface of the seat cover.   2. The vehicle seat according to claim 1, wherein air is sucked from a surface of the seat cover through a vent hole connected to the duct provided in the pad member via the duct by operating the blower. The air introduced into the sealed space formed by the back surface side of the pad member and the cover other than the holes connected to the duct among the plurality of ventilation holes formed in the pad member. A vehicle seat characterized by being blown out from the surface of the seat cover through a hole. A seat cushion on which an occupant sits,
A vehicle seat comprising a seat back 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;
A blower disposed on the back side of the pad member;
A duct connecting at least one hole and the blower at an upper portion of the pad member among a plurality of ventilation holes provided in the pad member;
The pad is connected to the blower by either sucking air or blowing air from the surface of the seat cover through a ventilation hole connected to the duct formed in the upper part of the pad member. A vehicle seat characterized in that air is sucked or blown from the surface of the seat cover without using the duct through a ventilation hole formed in a lower part of the member.   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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