JP5834784B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat including a blower, a duct member (a member that guides air of the blower to a seating side), and a wing member (a member that can change the air direction of air).

As this type of vehicle seat, a vehicle seat disclosed in Patent Document 1 is known. The vehicle seat includes a seat cushion, a seat back, a headrest, a blower, and a duct member.
Here, the seat back is a member that is connected to the seat cushion so as to stand upright. A headrest is disposed above the seat back, and a blower is disposed in the seat back.
The duct member is a substantially inverted L-shaped tube member (both ends open) and has a lattice element. The lattice element is a mesh-like member and can be fitted to the seating side (opening) of the duct member.
In the known technique, one side (bent portion) of the duct member is exposed from the upper portion of the seat back, and the other side of the duct member is communicated with the blower while being disposed in the seat back. And the air of an air blower can be guide | induced to the seating side via a duct member by directing one side of a duct member to a seating side.

By the way, in the above-mentioned structure, the direction of the blowing air can be changed by providing a wing member in the duct member.
For example, by disposing the wing member (flat plate shape) on the duct member while being disposed inside the lattice element, the blade member can be displaced from the horizontal state to the inclined state.
And by making a wing | blade member into a horizontal state, the air of an air blower blows off horizontally toward a seating side from a duct member. Further, by setting the wing member to the inclined state, the direction of the air of the blower can be changed to the upper side or the lower side of the seat.

JP-T-2006-523478

By the way, in the above-described configuration, the wing member is disposed in the duct member (inside the lattice element). For this reason, even if the direction of the air flow is directed upward or downward, the air flow may be blocked by the wall surface of the duct member and the air cannot be sufficiently blown (the air blowing efficiency is slightly inferior).
Of course, the wing member may be exposed from the duct member, but there is a concern that the wing member may be damaged due to contact with other members.
The present invention was devised in view of the above points, and the problem to be solved by the present invention is to efficiently change the air direction of the air blower while suitably preventing the wing member from being damaged. is there.

As means for solving the above problems, the vehicle seat according to the first aspect of the invention has a seat constituent member such as a seat cushion, a seat back, or a headrest. And a sheet | seat structural member has an air blower and a duct member which guides the air of an air blower to the seating side of a sheet | seat structural member.
In the present invention, the wing member in the duct member can be displaced between a first state in which the air of the blower is guided in one direction and a second state in which the air is guided in another direction different from the one direction. In this type of configuration, it is desirable to be able to efficiently change the air direction of the air of the blower while suitably preventing breakage of the wing member.
Therefore, in the present invention, the duct member described above has, as the wall surface arranged outside the seat, a wall surface facing the front of the seat, a wall surface facing the upper side of the seat or the lower side of the seat, and a wall surface facing the left side of the seat or the right side of the seat. It is a three-dimensional shape. Then, the wall surface facing the front of the seat is provided with a first passage through which air from the blower heading in one direction can pass, and the air from the air blower heading in the other direction can pass through the wall facing the upper side of the seat or the lower side of the seat. A second communicating portion is provided, and the first series communicating portion and the second communicating portion form a single curved surface shape, and also allow air to pass through the wall surface facing the left or right of the seat .
In this invention, according to the wind direction of the air of an air blower, the air of an air blower can be ventilated (without being disturbed as much as possible by the wall surface of a duct member) by a 1st communicating part or a 2nd communicating part.

The vehicle seat of the second invention is the vehicle seat of the first invention, wherein the first communicating portion and the second communicating portion are downstream in the air blowing direction from the arrangement position of the wing member (the air wind direction is changed). (Part). In addition, the duct member on the upstream side in the air blowing direction (the portion where the wind direction does not need to be changed) is formed in a sealed state with respect to the wing member.
In this invention, the air of an air blower can be efficiently ventilated by providing a 1st communicating part and a 2nd communicating part in a duct member part (part from which the wind direction of air changes). Further, by making the other part of the duct member (portion where the wind direction does not need to be changed) hermetically sealed, the air of the blower can be more efficiently guided to the first series communication part or the second communication part.

  According to the first aspect of the present invention, the air direction of the air blower can be changed efficiently. Moreover, according to the 2nd invention, the wind direction of the air of an air blower can be changed still more efficiently.

It is a side view showing a vehicular seat by partial sectional view. It is a perspective view of a ventilation duct. It is sectional drawing of a seat back part, (a) is a figure at the time of ventilating in front of a seat, (b) is a figure at the time of ventilating above a 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.
The vehicle seat 2 in FIG. 1 has a seat cushion 4, a seat back 6, and a headrest 8. These seat components include a frame member (4F, 6F, 8F) forming a seat skeleton, a cushion material (4P, 6P, 8P) forming a seat outer shape, and a covering material (4S, 6S, 8S) covering the cushion material. And have.

The seat back 6 has the above-described configuration (6F, 6P, 6S), the blower 10, the duct member 20, and the wing member 40 (details of each device and members will be described later).
In the present embodiment, the seat back 6 is connected to the seat cushion 4 so as to be able to rise and fall. Then, the headrest 8 is attached above the seat back 6 via the stay member 8 a, and the air blower 10 is disposed in the seat back 6.
And the air of the air blower 10 is sent from the upper part of the seat back 6 to the seating side (occupant neck, etc.) through the exposed duct member 20. At this time, the wing member 40 in the duct member 20 is displaced between a first state in which the air of the blower 10 is guided forward (in one direction) and a second state in which the air is guided upward (in the other direction). In this type of configuration, it is desirable that the air direction of the air blower 10 can be efficiently changed while suitably preventing the wing member 40 from being damaged.
Therefore, in the present embodiment, the air flow direction of the blower 10 is efficiently changed with the following configuration while suitably preventing the wing member 40 from being damaged. Hereinafter, each configuration will be described in detail.

[Basic configuration]
In this embodiment, the cushion material 6P is covered with the skin material 6S while the cushion material 6P is disposed on the frame member 6F (see FIG. 1).
Here, the frame member 6F is an arch-shaped frame member (not shown) and has a pair of support members (not shown). Each of the pair of support members is a cylindrical hollow member, and a stay member 8a (bar-shaped member) of the headrest 8 can be inserted therein. The skin material 6S is a bag-like member that can cover the cushion material 6P, and can be formed of fabric (woven fabric, knitted fabric, non-woven fabric) or leather (natural leather, synthetic leather).
The cushion material 6P is a substantially rectangular member that forms the outer shape of the seat, and can be formed of a resin having elasticity such as polyurethane foam. In the present embodiment, an opening 6X is provided in the upper part of the cushion material 6P (in a standing state) so that the duct member 20 (described later) can be exposed to the outside. Here, the position where the opening 6X is formed is not particularly limited.

[Blower]
The air blower 10 is a hollow box (short cylindrical shape) and incorporates an air blowing mechanism (see FIG. 1).
As the blower mechanism, for example, a centrifugal mechanism (a mechanism that blows air 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 air blower 10 is disposed in the seat back 6 (substantially in the center) and fixed to the frame member 6F and the like. And the air of the air blower 10 can be blown out to the seating side through the duct member 20 (after-mentioned).

[Duct member]
The duct member 20 is a substantially inverted L-shaped hollow tube member (both ends open), and can guide the air of the blower 10 to the seating side of the seat back 6 (see FIGS. 1 to 3).
The duct member 20 of the present embodiment includes a first duct portion 21, a second duct portion 22, a plurality of communication portions (first communication portion 31, second communication portion 32), and a wing member 40.
Both the first duct portion 21 and the second duct portion 22 are prismatic tubular portions (hollow), and the air of the blower 10 can pass through. And the 1st duct part 21 is a linear site | part (relatively long), and has the length dimension which can connect the air blower 10 and the opening part 6X.
The second duct portion 22 is a bent portion (relatively short) that is connected to one side of the first duct portion 21, and is bent at a substantially right angle from the first duct portion 21 (bent toward the seating side). In the middle of the second duct portion 22 (side wall) of the present embodiment, a through hole (reference numeral omitted) that opens in the sheet width direction is formed, and a wing member 40 (described later) can be attached.

(Wing member)
The wing member 40 is a flat plate-like member (substantially rectangular shape) that can be disposed in the duct member 20, and includes a shaft portion 42 and an operation portion 44 (see FIGS. 2 and 3).
The shaft portion 42 is a cylindrical rod-shaped portion extending in the sheet width direction. The operation unit 44 is a bar-shaped part that can be attached to the end of the shaft part 42.
In the present embodiment, after the shaft portion 42 is attached to one side of the wing member 40, the shaft portion 42 is rotatably attached to the second duct portion 22 (through hole). Next, one end of the shaft portion 42 is attached to the operation portion 44 while being exposed from the second duct portion 22. Then, the wing member 40 can be displaced from the first state of being substantially horizontal to the second state of being inclined by rotating the operation unit 44 up and down (operating) to rotate the shaft part 42.
In this embodiment, the air of the blower 10 can be guided to the front of the seat by setting the wing member 40 to the first state (substantially horizontal state). Moreover, the air of the air blower 10 can be guide | induced above a sheet | seat by setting the wing | blade member 40 to a 2nd state and arrange | positioning an other side rather than the wing member 40 one side below a sheet | seat.

(First communication part, second communication part)
The plurality of communication portions (the first communication portion 31 and the second communication portion 32) are portions through which the air of the blower 10 can pass, and can be formed on the tip side (details will be described later) of the second duct portion 22 ( See FIGS. 1-3.
The first communication part 31 of the present embodiment is a lattice-like part (mesh-like part through which air can pass) constituting the front wall of the second duct part 22 and allows passage of air toward the front of the seat. . The second communication portion 32 is a lattice-like portion that constitutes the upper wall of the second duct portion 22 and allows passage of air toward the upper side of the seat. In the present embodiment, the first communication part 31 and the second communication part 32 are formed as a single curved surface.
In addition, the both side walls of the second duct portion 22 can be formed in a lattice shape as in the present embodiment, or can be formed in a sealed shape.

[Relationship between each communicating part and wing member]
Here, the first communication part 31 and the second communication part 32 can be formed from the arrangement position of the wing member 40 toward the downstream side in the air blowing direction (part where the air wind direction changes) (see FIG. 3).
For example, in the present embodiment, the first series passage portion 31 can be formed on the distal end side (sitting side) of the second duct portion 22 with respect to the wing member 40. In addition, the second communication portion 32 can be formed from the upper wall portion of the duct member 20 that overlaps the movable range (rotation locus) of the wing member 40 toward the first communication portion 31. Thus, by providing the first communication part 31 and the second communication part 32 in a part of the duct member 20 (part where the air wind direction changes), the air of the blower 10 can be efficiently blown.
Further, in the present embodiment, the duct member 20 on the upstream side in the air blowing direction from the wing member 40 is formed in a hermetically sealed state (each communication portion is a non-formed portion). Thus, the air leakage of the air blower 10 can be prevented as much as possible by making the other part of the duct member 20 (portion where the wind direction does not need to be changed) hermetically sealed.

[Assembling work of duct members]
With reference to FIG. 1, the duct member 20 is disposed in the seat back 6 so that the air of the blower 10 can be blown to the seat seating side.
In the present embodiment, the first duct portion 21 communicates with the blower 10 while being disposed in the seat back 6. Next, the second duct portion 22 is directed toward the front side of the seat while being exposed from the cushion material 6P (opening portion 6X), so that the air of the blower 10 can be blown to the seat seating side.
Next, by setting the wing member 40 to the first state (substantially horizontal state), the air of the blower 10 can be guided to the front of the seat via the first series passage portion 31 (see FIG. 3).
Further, the wing member 40 is set to the second state (tilted state) by operating the operation unit 44. By doing so, the air of the blower 10 is smoothly blown out through the second communication portion 32 while being guided upward by the wing member 40.

As described above, according to the present embodiment, depending on the air direction of the air of the blower device 10, the first serial communication portion 31 or the second communication portion 32 (as much as possible without being disturbed by the wall surface of the duct member 20). The air of the blower 10 can be blown.
And since the wing member 40 is arrange | positioned inside the duct member 20 rather than the 1st continuous passage part 31 (it does not expose to the exterior of the duct member 20 as much as possible), the damage of the wing member 40 by contact with another member can be prevented as much as possible. . For example, the configuration of the present embodiment is a configuration in which problems such as damage to the wing member 40 are less likely to occur due to the wing member 40 winding the passenger's hair.
Further, in the present embodiment, the air of the blower 10 can be efficiently blown by providing the first communication part 31 and the second communication part 32 in a part of the duct member 20 (part where the air wind direction changes). Furthermore, by making the other part of the duct member 20 (portion where the wind direction does not need to be changed) hermetically sealed, the air of the blower 10 can be more efficiently guided to the first communication part 31 and the second communication part 32 ( It is a configuration with excellent blowing efficiency).
For this reason, according to the present Example, the wind direction of the air of the air blower 10 can be changed efficiently.

The vehicle seat of the present embodiment is not limited to the above-described embodiment, and can take other various embodiments.
(1) In this embodiment, although the example which arrange | positions the duct member 20 in the seat back 6 was demonstrated, it is not the meaning which limits the arrangement | positioning position of the duct member 20. FIG. The duct member 20 can be disposed on various seat constituent members such as the seat cushion 4 and the headrest 8.
For example, referring to FIG. 1, the duct member 20 can be provided in the lower portion of the headrest 8. At this time, the first communication part 31 is provided on the front wall of the second duct part 22, and the second communication part 32 is provided on the lower wall of the second duct part 22.
Then, by setting the wing member 40 to the first state (substantially horizontal state), the air of the blower 10 can be guided to the front of the seat via the first series passage portion 31. Further, the wing member 40 is placed in the second state (inclined state), and the other side of the wing member 40 is disposed above the seat, so that the air of the blower 10 is moved downward through the second communication portion 32. Can lead.

(2) Moreover, in this embodiment, it can be set as the structure which can be opened and closed by providing a cover member in the 1st communicating part 31 or the 2nd communicating part 32, etc.
And by making a wing member into a 1st state (substantially horizontal state) and closing a 2nd communicating part, the air of an air blower can be guide | induced to a sheet | seat front via a 1st serial communicating part. In addition, by setting the wing member in the second state (inclined state) and closing the first communication portion, the air of the blower can be guided to the upper side of the seat through the second communication portion.
In the above-described configuration, the opening / closing operation of the lid member is interlocked with the state displacement of the wing member, whereby a user-friendly seat configuration can be obtained.

(3) Moreover, in this embodiment, although the substantially L time-like pipe member was illustrated as the duct member 20, it does not mean that the structure of the duct member 20 is limited. An example of the duct member is a bellows-like tube member (a configuration that can be bent or bent). Further, the first duct portion and the second duct portion can be connected so as not to be detachable, and can also be connected detachably.
(4) In the present embodiment, the example in which the first communication unit 31 and the second communication unit 32 are formed in a lattice shape has been described. However, the configuration of each communication unit is not intended to be limited. For example, the first communication part and the second communication part may be a hole (a hole smaller than the opening of the duct member) or a groove that penetrates the second duct part in the thickness direction.
(5) In the present embodiment, the example in which the first communication part 31 and the second communication part 32 are formed on the downstream side in the air blowing direction (the part where the air wind direction changes) has been described. It is not intended to limit the formation positions of the part and the second communication part.
(6) In the present embodiment, the example in which the wing member 40 is disposed so as to be tiltable up and down in the seat has been described. In this case, the second communication portion can be provided on the side wall of the duct member.
(7) Moreover, in this embodiment, the example which ventilates the sheet | seat front (one direction) and the sheet | seat upper direction (other direction) in the wing | blade member 40 was demonstrated. One direction is any one of the front of the seat, the top of the seat, the bottom of the seat, and the side of the seat, and the other direction is a direction different from the one direction. Moreover, the structure which can change a wind direction in three or more directions may be sufficient as a wing member. In this case, a plurality of communicating portions can be provided in the duct member according to the number of changes in the wind direction by the wing member.

2 Vehicle Seat 4 Seat Cushion 6 Seat Back 8 Headrest 6F Frame Member 6P Cushion Material 6S Skin Material 6X Opening 8a Stay Member 10 Blower 20 Duct Member 21 First Duct Portion 22 Second Duct Portion 31 First Communication Portion 32 Second communication part 40 Wing member 42 Shaft part 44 Operation part

Claims (2)

While having a seat constituent member such as a seat cushion, a seat back, and a headrest, the seat constituent member has a blower device and a duct member that guides air of the blower device to a seating side of the seat constituent member,
In a vehicle seat that is displaceable between a first state that guides the air of the blower device in one direction and a second state that guides the air in the duct member in another direction different from the one direction. ,
The duct member is a three-dimensional shape having a wall surface facing the front of the seat, a wall surface facing the seat upper side or the lower side of the seat, and a wall surface facing the left side of the seat or the right side of the seat, as the wall surface arranged outside the seat,
The wall surface facing the front of the seat is provided with a first continuous portion through which the air of the blower directed in the one direction can pass , and the wall of the blower directed toward the other direction is formed on the wall facing the upper side of the seat or the lower side of the seat . A second communication part through which air can pass is provided, and the first communication part and the second communication part form a continuous curved surface shape, and air also passes through the wall facing the left or right of the seat. A vehicle seat that made it possible .   The first communication part and the second communication part are formed from the arrangement position of the wing member toward the downstream side in the air blowing direction, and the duct member on the upstream side in the air blowing direction from the wing member. The vehicle seat according to claim 1, wherein the vehicle seat is formed in a sealed state.

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