JP2013119344A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To blow comfortable air from a blowing device with a relatively simple configuration.SOLUTION: A vehicle seat is configured to blow air from a blowing device 20 through a blowing port 10a of a first part 10 in a first state, and not to blow air from the blowing device 20 through the blowing port 10a of the first part 10 in a second state. Substantially the same amount of air is blown from a blowing port 6a of a second part 6 when the first part 10 is in the second state, and from the blowing port 6a of the second part 6 when the first part 10 is in the first state.

Description

  The present invention relates to a vehicle seat provided with a blower and a plurality of outlets (openings through which air from the blower can be blown).

In a typical vehicle, various vehicle structures (instrument panel, door portion, console, vehicle seat, etc.) and a blower are disposed.
The blower is provided, for example, on an instrument panel, and can blow out air toward the vehicle seat. In this type of vehicle, it is desirable that air from the blower can be efficiently blown out to the occupant by providing a plurality of air outlets around the vehicle seat.
For example, in the vehicle of patent document 1, while providing a blower outlet in a console or a door part, each blower outlet is connected with an air blower via a duct member. And the air of an air blower can be efficiently blown out to a passenger | crew from the several blower outlet provided in the circumference | surroundings (instrument panel, console, door part, etc.) of the vehicle seat.

However, in the above-described configuration, since the duct member is disposed inside the vehicle, the vehicle configuration tends to be complicated.
Here, various seat constituent members (a seat cushion, a seat back, an armrest, etc.) are provided in the vehicle seat. Therefore, the air outlets are provided in the respective seat constituent members, and the air outlets are connected to the blower device via the duct members in the seat. For example, air can be blown out toward the occupant's neck by providing an air outlet on the upper side of the seat back. Moreover, air can be blown out toward the passenger | crew side part by providing a blower outlet in an armrest.
By doing so, the air of the blower can be efficiently blown to the occupant without requiring a significant change in the vehicle configuration.

JP 58-211905 A

By the way, a typical armrest can be displaced between a use state and a storage state. For example, the armrest in use can extend from the seat back to the seating side and support the occupant elbow. In addition, the armrest in the stowed state is compactly arranged on the side surface of the seat back. Here, since the armrest in the storage state does not face the occupant side portion (because it is not necessary to blow out), it is desirable to stop blowing from the armrest.
However, in the above-described configuration, when the armrest is displaced to the retracted state and the blowout is stopped, the air of the blower device may be excessively blown out from the other blowout ports (the configuration tends to be slightly inferior in comfort). )
The present invention has been devised in view of the above points, and the problem to be solved by the present invention is to comfortably blow out air from a blower device with a relatively simple configuration.

As means for solving the above problems, the vehicle seat of the first invention includes a seat constituent member such as a seat cushion, a seat back and a headrest, a first portion such as an armrest provided on the seat constituent member, and a seat constituent member. A second portion different from the first portion, a blower, and a duct portion through which air from the blower can pass.
In the present invention, one side of the duct member is communicated with the blower, and the other side of the duct member is branched in the middle to communicate with the first part outlet and the second part outlet. And the air of an air blower can be blown off to a passenger | crew from both the blower outlet of a 1st site | part and the blower port of a 2nd site | part.
The first part can be displaced between a first state that can be used for the original purpose of the first part and a second state that cannot be used for the original purpose of the first part. In this type of seat configuration, it is desirable that the air of the blower can be blown out comfortably with a relatively simple configuration.

In the present invention, the air of the blower is blown from the outlet of the first part in the first state, and the air of the blower is not blown from the outlet of the first part in the second state.
Therefore, in the present invention, the amount of air blown from the outlet of the second part when the first part is in the second state is the amount of air blown from the outlet of the second part when the first part is in the first state. The amount was substantially the same.
In the present invention, the amount of air blown from the outlet of the second part is made substantially the same regardless of the state displacement of the first part, so that the air of the blower is excessively discharged from the outlet of the second part. It can prevent blowing out as much as possible (it is the composition excellent in comfort).

The vehicle seat of the second invention is the vehicle seat of the first invention, and the air from the outlet of the second part when the first part is set to the second state by adjusting the output of the blower. The amount of air blow was made substantially the same as the amount of air blown from the air outlet of the second part when the first part was in the first state.
In the present invention, by adjusting the output of the blower (with a more reliable configuration), the amount of air blown from the outlet of the second part is substantially the same regardless of the state displacement of the first part. can do.

  According to the first aspect of the present invention, the air of the blower can be comfortably blown out with a relatively simple configuration. Moreover, according to the 2nd invention, the air of an air blower can be blown out comfortably more reliably.

It is a front perspective view of a vehicle seat. It is a back perspective view of a vehicle seat. It is a side view of a vehicle seat. It is a side view of a part of vehicle seat. It is sectional drawing of a part of vehicle seat.

Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In each of the drawings, a reference symbol F is attached to the front of the vehicle seat, a reference symbol B is attached to the rear of the vehicle seat, a reference symbol UP is provided above the vehicle seat, and a reference symbol DW is provided below the vehicle seat.
1 and 2 has a basic configuration (seat cushion 4, seat back 6, headrest 8), an armrest 10, an air blower 20, a duct member 30, and a control mechanism DM (each member). Details are described later).

Here, the armrest 10 (described later in detail) is a member that is connected to the seatback 6 so as to be able to be tilted and can be displaced between the first state and the second state (see FIG. 3).
The armrest 10 in the first state falls to the seat back 6 and protrudes toward the seat seating side (see the solid line state in FIG. 3). Further, the armrest 10 in the second state is in a standing state with respect to the seat back 6 and is disposed facing the side surface of the seat back 6 (see the two-dot broken line state in FIG. 3).

In this embodiment, the air of the blower 20 can be blown out from both the armrest 10 (first portion) and the upper portion of the seat back 6 (second portion) via the duct member 30 (a relatively simple configuration). Is).
At this time, the air blowing from the armrest 10 is started or stopped according to the state displacement of the armrest 10, but in this type of seat configuration, the air of the blower 20 is supplied from the upper part of the seat back 6 according to the same state displacement. It is desirable to blow out comfortably.
Therefore, in this embodiment, the air of the blower 20 is comfortably blown out by the configuration described later. Hereinafter, each configuration will be described in detail.

[Armrest (first part)]
The armrest 10 is a substantially rectangular parallelepiped member, and includes a first outlet 10a, a lid member 12, a shaft portion 14, and a part of a duct member 30 (described later) (see FIGS. 1 to 5).
The 1st blower outlet 10a is opening (substantially rectangular shape) which can blow off the air of the air blower 20, and is provided in the inner surface of the armrest 10 one side (it opens so that it can blow toward the passenger | crew side part).
The lid member 12 is a flat plate-like member that can be fitted into the first air outlet 10a. The lid member 12 is formed with an opening penetrating in the thickness direction so that air from the blower 20 can pass therethrough.
The shaft portion 14 is a rod-like portion (bolt shape) that is long in the seat width direction, and can project from the other side of the armrest 10. In the present embodiment, one side (head) of the shaft portion 14 is rotatably attached to the armrest 10 and the other side (shaft portion) of the shaft portion 14 is projected toward the seat back 6 (described later). It is arranged so that it can be screwed onto the shaft support part 6b).

[Seatback (second part)]
The seat back 6 is a member connected to the seat cushion 4 so as to be able to be tilted (see FIGS. 1 to 5).
The seat back 6 of the present embodiment includes a basic configuration (frame member 6F, cushion material 6P, skin material 6S), a second air outlet 6a, a shaft support portion 6b, a bracket 6D, a ventilation member 9, and a duct member. 30 (to be described later).
Here, the frame member 6F is a frame member (typically an arch shape) forming a seat skeleton (see FIG. 5). The cushion material 6P is an elastic member (typically made of polyurethane foam) that forms the outer shape of the seat. Further, the skin material 6S is a member (typically a bag shape) that covers the cushion material 6P, and can be composed of cloth or leather.
Moreover, the bracket 6D is a substantially circular (front view) flat plate member, and the shaft portion 14 can be rotatably inserted into the hole H (through hole) at the substantially center. The bracket 6D of the present embodiment is bent in a crank shape in a cross-sectional view. Then, the end portion side of the bracket 6D can be fixed to the frame member 6F while the central portion of the bracket 6D is spaced from the frame member 6F (while providing a clearance where the shaft support portion 6b can be disposed).
The shaft support portion 6b is a substantially cylindrical member (nut shape), and has a screw hole (reference numeral omitted) that can fix the shaft portion 14. The shaft support portion 6b can be disposed on the rear surface of the bracket 6D (between the bracket 6D and the frame member 6F). In the present embodiment, the shaft portion 14 can be inserted from the bracket 6D (hole H) toward the shaft support portion 6b.
The ventilation member 9 is a substantially inverted L-shaped hollow tube member, and a second air outlet 6a is provided at the tip (bent end) (see FIGS. 1 to 3). In the present embodiment, as will be described later, the ventilation member 9 can be protruded from the upper portion (second portion) of the seat back 6.

[Blower]
The air blower 20 is a hollow box (short cylindrical shape) and incorporates a blower mechanism (see FIG. 1).
As the blower mechanism, for example, a centrifugal mechanism (a mechanism that blows in the centrifugal direction while sucking air from the apparatus axial direction) can be used. Examples of this type of air blowing mechanism include multi-blade fans (sirocco fans), plate fans, turbo fans, airfoil fans, and limit load fans.
In the present embodiment, the blower 20 is disposed below the seat back 6 and is fixed to the frame member 6F and the like. And the air of the air blower 20 can be blown out from each blower outlet through the duct member 30 (after-mentioned).

[Vehicle seat assembly work]
With reference to FIG.1 and FIG.5, a pair of armrest 10 is attached rotatably with respect to the seat back 6 both sides | surfaces.
At this time, the armrest 10 (standing state) is disposed on the side surface of the seat back 6, and the lower shaft portion 14 is projected toward the seat back 6. The shaft portion 14 is inserted into the bracket 6D (hole H) and fixed at the shaft support portion 6b, so that the armrest 10 can be turned up and down around the shaft portion 14 (first state and second state). It can be displaced between states).
Then, the armrest 10 is tilted so that one side of the armrest 10 (first air outlet 10a) protrudes to the seat seating side (set to the first state). By carrying out like this, it becomes possible to blow the air of the air blower 20 toward the passenger | crew side part from the 1st blower outlet 10a.

Further, the headrest 8 is attached above the seat back 6 via a stay member 8a (see FIGS. 1 to 3).
Next, the second air outlet 6a is directed to the seat seating side while the ventilation member 9 is projected from the upper part of the seat back 6 (between the seat back 6 and the headrest 8). By carrying out like this, the air of the air blower 20 can be blown out toward the passenger | crew neck from the 2nd blower outlet 6a of the seat back 6 upper part (2nd site | part).

[Duct member]
The duct member 30 is a tube member (hollow) through which air from the blower 20 can pass, and includes a main duct portion 31 and a sub duct portion 32 (see FIGS. 2 and 5).
The main duct portion 31 is a channel portion that is open at both ends, and is long in the height direction of the seat back 6. In the present embodiment, a main duct portion 31 protrudes from the rear side of the seat back 6 (in a standing state) and extends up and down the seat, and blows in the middle of the main duct portion 31 (substantially rectangular portion in front view). It communicates with the device 20. And the lower end (opening part) of the main duct part 31 is opened below a sheet | seat, and external air outside a sheet | seat can be supplied to the air blower 20. FIG.
And the air of the air blower 20 can be blown out from the 2nd blower outlet 6a via the main duct part 31 by connecting the upper end of the main duct part 31 to the ventilation member 9. FIG.

The sub duct portion 32 is a flow path portion that branches from the main duct portion 31 and extends to the armrest 10, and includes a first duct portion 41 and a second duct portion 42 (see FIGS. 2, 4, and 5). ).
The first duct portion 41 is a flow path that extends toward the armrest 10 while branching from the middle of the main duct portion 31, and opens on the lower side surface of the seat back 6 (a first series opening 41a is formed). .
The second duct portion 42 is a flow path portion extending in the longitudinal direction in the armrest 10. One end of the second duct portion communicates with the first air outlet 10a, and the other end of the second duct portion 42 opens to the other side of the armrest 10 (a second communication opening 42a is formed).

In the present embodiment, both the communication openings 41a and 42a are arranged to face each other by setting the armrest 10 in the first state while adjusting the positions of the first communication opening 41a and the second communication opening 42a (FIGS. 4 and 4). 5). By carrying out like this, the 1st duct part 41 and the 2nd duct part 42 connect, and the air of the air blower 20 can blow out from the 2nd blower outlet 6a.
Further, when the armrest 10 is set to the second state (by rotating around the shaft portion 14), the second communication opening 42a moves around the shaft portion 14 and is separated from the first series opening 41a. By doing so, the first duct part 41 and the second duct part 42 are disconnected, and the air of the blower 20 cannot be blown out from the second outlet 6a.

[Control mechanism]
The control mechanism DM is a mechanism that adjusts the output of the blower 20, and includes a sensor unit 50 and a control unit (not shown) (see FIGS. 2 and 3).
The sensor unit 50 is a part that detects the state displacement of the armrest 10 and transmits an electrical signal. As this type of sensor unit 50, a contact type mechanism (limit switch, micro switch, etc.) or a non-contact type mechanism (infrared type, ultrasonic type, induction type, capacitance type, electromagnetic wave type) can be used.
For example, in the present embodiment, the sensor unit 50 provided with a contact-type mechanism (limit switch) is disposed so as to protrude from the upper side surface of the seat back 6. And the armrest 10 presses the sensor part 50 (it will be in an operation state), displacing from a 1st state to a 2nd state. Moreover, the sensor part 50 will be in a non-pressing state (it will be in a non-operation state) because the armrest 10 displaces from a 2nd state to a 1st state.

The control unit is a part (typically an ECU) that adjusts the output of the blower 20 and can receive an electrical signal from the sensor unit 50.
In the present embodiment, the state displacement of the armrest 10 is detected by the sensor unit 50 and then transmitted to the control unit. Then, the control unit can adjust the output (air volume) of the blower 20 according to the state of the armrest 10.
Therefore, the output (first output) of the blower 20 when the armrest 10 is in the first state is set. Moreover, the output (second output) of the blower 20 when the armrest 10 is in the second state is set. Then, by setting the second output lower than the first output (typically setting it to about 1/2), the amount of air blown from the second outlet 6a in the second state is set in the first state. The air blowing amount can be substantially the same.
Here, making the air blowing amount substantially the same means both keeping the air blowing amount from the second outlet 6a strictly constant and keeping it constant so as not to cause a sense of incongruity to the occupant. means. For example, even if the second output is set to ½ of the first output, a slight difference may occur in the air blowing amount due to the difference in the length dimension and shape of each duct part (difference in flow path resistance). Although there are such differences, they are substantially the same.

[Displacement of armrest state]
With reference to FIG.1 and FIG.3, the air of the air blower 20 blows off from the 1st blower outlet 10a and the 2nd blower outlet 6a via the duct member 30. FIG.
In the present embodiment, the armrest 10 is set in the first state, and the first duct portion 41 and the second duct portion 42 are communicated, whereby the air of the blower 20 can be blown out from the second outlet 6a (see FIG. 4 and FIG. 4). (See FIG. 5). And it can blow out from the 1st blower outlet 10a to a passenger | crew's neck etc. via the main duct part 31, and can blow out from the 2nd blower outlet 6a to a passenger | crew side part via the sub duct part 32.
As described above, in this embodiment, the air of the blower 20 can be efficiently blown to the occupant by the plurality of outlets 6a and 10a without requiring a significant change in the vehicle configuration.

Further, the armrest 10 is displaced from the first state to the second state, and is disposed in a compact manner on the side surface of the seat back 6.
At this time, since the armrest 10 does not face the passenger side, it is desirable to stop blowing from the armrest 10. And although the air of the air blower 20 is blown out only from the 1st blower outlet 10a, we are anxious about excess air blowing out at this time.
Here, in the present embodiment, the blowout from the second air outlet 6a is stopped by setting the armrest 10 in the second state and the first duct portion 41 and the second duct portion 42 in the non-communication state.
Therefore, in this embodiment, the control mechanism DM detects that the armrest 10 has been displaced to the second state, and reduces the output of the blower 20 (reduces the air volume). At this time, the output of the blower 20 can be adjusted so that the amount of air blown from the second outlet 6a can be made substantially the same as the amount of air blown when the armrest 10 is in the first state.

As described above, in this embodiment, the amount of air blown from the first air outlet 10a is substantially the same regardless of the state displacement of the armrest 10. By doing so, it is possible to prevent the air of the blower 20 from being excessively blown out from the first air outlet 10a as much as possible (a configuration excellent in comfort).
Moreover, in a present Example, by adjusting the output of the air blower 20, it can prevent more reliably that the air of the air blower 20 is blown out from a 2nd site | part excessively. Thereby, while being able to reduce the power consumption of the air blower 20, the movable sound of the air blower 20 can be reduced.
For this reason, according to the present Example, the air of the air blower 20 can be comfortably blown out by the structure (relatively simple structure) of the vehicle seat.

The vehicle seat of the present embodiment is not limited to the above-described embodiment, and can take other various embodiments.
(1) In the present embodiment, the armrest 10 is exemplified as the first part, but the purpose is not to limit the first part. Examples of the first part include various movable members such as an ottoman and an active headrest.
Here, the ottoman is a member provided at the front portion of the seat cushion. The ottoman in the first state can extend from the front portion of the seat cushion to the front of the seat and support the occupant calf. The ottoman in the second state extends from the front part of the seat cushion to the lower part of the seat and is stored compactly. Therefore, by providing the first air outlet on the seating surface (upper surface) side of the ottoman, air can be blown toward the passenger calf or the like in the first state.
The active headrest moves toward the passenger's head by detecting an impact at the time of a vehicle collision. Therefore, by providing the first air outlet on the seating surface (front surface) side of the active headrest, air can be blown toward the passenger's head or the like in the first state.

(2) Moreover, in this embodiment, although the seat back 6 upper part was illustrated as a 2nd site | part, it is not the meaning which limits a 2nd site | part. For example, the second portion can be provided on at least a part of the upper portion, the lower portion, the side portion, and the seating surface of the seat constituent member.
(3) Moreover, in this embodiment, the example which provides the sensor part 50 in the seat back 6 was demonstrated. Unlike this, the sensor unit can be provided on the armrest. In addition, the sensor unit can be provided in another part of the vehicle seat or the vehicle structure as long as the state displacement of the armrest can be detected.

(4) Moreover, in this embodiment, the output of the air blower 20 is adjusted so that the air blowing amount from the second outlet 6a in the second state is substantially the same as the air blowing amount in the first state. An example was explained.
Unlike this, in the second state, the air to be blown out to the first blower outlet is blown out from the other outlets (for example, to escape outside the seat), thereby reducing the amount of air blown from the second blower outlet 6a, It may be substantially the same as the air blowing amount in the first state.
(5) Moreover, although this embodiment demonstrated the example which forms the 1st blower outlet and the 2nd blower outlet, two or more can be formed independently, respectively. Moreover, the 3rd blower outlet can be provided in the 3rd site | part (site | part different from a 1st site | part or a 2nd site | part) of a sheet | seat structural member, and it can be made to blow out the air of a ventilation apparatus through a duct member. When three or more outlets are provided as described above, the output of the blower can be appropriately adjusted according to the number of outlets to be blown out.

2 Vehicle Seat 4 Seat Cushion 6 Seat Back 8 Headrest 9 Ventilation Member 10 Arm Rest 6a Second Air Outlet 10a First Air Outlet 20 Blower 30 Duct Member 31 Main Duct Portion 32 Sub Duct Portion 41 First Duct Portion 41a First Series Through opening 42 Second duct part 42a Second communicating opening 50 Sensor part DM Control mechanism

Claims (2)

A seat component such as a seat cushion, a seat back and a headrest; a first portion such as an armrest provided on the seat component; a second portion provided on the seat component and different from the first portion; And a duct member through which air of the blower can pass,
The one side of the duct member communicates with the blower, and the other side of the duct member branches in the middle to communicate with the air outlet of the first part and the air outlet of the second part, respectively. While the air of the blower can be blown out to the occupant from both the outlet of the first part and the outlet of the second part,
For a vehicle in which the first part is displaceable between a first state that can be used for the original purpose of the first part and a second state that cannot be used for the original purpose of the first part. In the sheet,
A configuration in which air of the blower is blown from the outlet of the first part in the first state and air of the blower is not blown from the outlet of the first part in the second state age,
The amount of air blown from the outlet of the second part when the first part is in the second state is the amount of air blown from the outlet of the second part when the first part is the first state. A vehicle seat that is substantially the same as the air blowing amount. By adjusting the output of the blower, the amount of air blown from the outlet of the second part when the first part is in the second state, and when the first part is in the first state The vehicle seat according to claim 1, wherein the air blowing amount from the air outlet of the second part is substantially the same.

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