JP7127437B2 - vehicle seat - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a vehicle seat mounted on a vehicle.

For example, a vehicle seat disclosed in Patent Document 1 is provided with an air outlet for supplying conditioned air toward the neck of a seated person.

JP-A-2004-283403

In the vehicle seat disclosed in Patent Document 1, an air outlet is provided between the seat back and the headrest. Therefore, for example, when a short person is seated, it is difficult to supply the conditioned air to the neck of the seated person.

In view of the above points, the present disclosure discloses an example of a vehicle seat capable of supplying air to the neck of a person of short stature even when the person is seated.

A vehicle seat mounted on a vehicle desirably has, for example, at least one of the following constituent requirements.
That is, the constituent elements are a seat back (5) for supporting the back of the occupant, and a headrest (7) provided above the seat back (5) for supporting the head of the occupant. A duct member (9) having a headrest (7) that can be displaced at least in the vertical direction with respect to the seat back (5), and an ejection port (9A) for ejecting air, wherein the ejection port (9A ) is provided between the seat back (5) and the headrest (7) and a duct member (9), and a turning portion provided in the headrest (7) for turning the flow direction of the airflow ejected from the ejection port (9A). (13).

As a result, in the vehicle seat, the air ejected from the ejection port (9A) located between the seat back (5) and the headrest (7) is diverted by the deflection portion (13) provided in the headrest (7). The direction of circulation is reversed. Thus, for example, even if a short person is seated, it may be possible to supply air to the neck of the seated person.

In addition, the said vehicle seat may be the following structures.
That is, it is desirable that the diverting portion (13) diverts downward the airflow jetted from the jet port (9A). This may ensure that even if a short person is seated, air can be supplied to the neck of the seated person.

The turning portion (13) is provided at the lower end portion of the headrest (7) on the front end side, and furthermore, even when the headrest (7) is at the lowest position, the seatback (5) and the headrest (7) are aligned. It is desirable that there is a gap (17) between them through which the airflow jetted from the jet port (9A) can flow.

This allows the vehicle seat to supply the occupant with air even when the headrest (7) is in its lowest position.
It is desirable to provide a diffusion suppressing portion (15) that suppresses diffusion of the airflow ejected from the ejection port (9A) in the seat width direction. Thereby, the vehicle seat can reliably supply air to the neck of the occupant.

The diffusion suppressor (15) is desirably provided at the lower end of the headrest (7). As a result, the diffusion suppressing portion (15) and the turning portion (13) are provided in the headrest (7), so that the configuration of the vehicle seat can be suppressed from being complicated.

Incidentally, the symbols in the parentheses above are examples showing the correspondence with specific configurations and the like described in the embodiments described later, and the present disclosure is limited to the specific configurations and the like indicated by the symbols in the parentheses. not something.

It is a figure showing a vehicle seat concerning a 1st embodiment. It is a figure showing structure of a vehicle seat concerning a 1st embodiment. FIG. 2 is a diagram showing the structure of the vehicle seat according to the first embodiment from which the back pad is removed; It is a figure which shows the headrest which concerns on 1st Embodiment.

The following "embodiment of the invention" shows an example of an embodiment belonging to the technical scope of the present disclosure. In other words, the matters specifying the invention described in the claims are not limited to the specific configurations, structures, etc. shown in the following embodiments.

At least one member or portion described with at least a reference numeral is provided unless otherwise specified as "one" or the like. In other words, two or more members may be provided unless there is a notice such as "one". The invention shown in the present disclosure includes at least components such as members or parts that are labeled and described.

The present embodiment is an example in which a seat according to the present disclosure is applied to a seat mounted in a vehicle such as a vehicle (hereinafter referred to as a vehicle seat). Directional arrows and the like attached to each figure are provided to facilitate understanding of the relationship between the figures.

Therefore, the inventions shown in this disclosure are not limited to the directions shown in each figure. The direction shown in each drawing is the direction in which the vehicle seat according to the present embodiment is assembled to the vehicle.

(First embodiment)
1. Overview of Vehicle Seat A vehicle seat 1 shown in FIG. 1 includes at least a seat back 5, a headrest 7, a duct member 9, and the like. The seat back 5 is a part for supporting the back of the seated person. The seat back 5 has at least a back frame 5A and a back pad 5B (see FIG. 2).

The back frame 5A is a strength member forming the skeleton of the seat back 5. As shown in FIG. The back pad 5B is made of an elastically deformable cushion material such as urethane. The back pad 5B is covered with a skin member such as leather or synthetic leather.

The headrest 7 is a part for supporting the head of the seated person. The headrest 7 is provided above the seatback 5 and is displaceable at least in the vertical direction with respect to the seatback 5 .

The headrest 7 is provided with at least one (two in this embodiment) stays (not shown). The headrest 7 is movably connected to the back frame 5A via these stays.

2. Duct member, turning part, etc. <Duct member>
The duct member 9, as shown in FIG. 2, is an example of an air guide member having an ejection port 9A for ejecting air. The duct member 9 according to this embodiment is configured by a flat cylindrical body having a rectangular cross section or an oval cross section. The long side direction of the flat cylinder substantially coincides with the seat width direction.

A jet port 9</b>A of the duct member 9 opens between the seat back 5 and the headrest 7 . The air introduction portion 9B of the duct member 9 communicates with the outlet of the blower 11 . The blower 11 is attached to the back frame 5A via an elastically deformable support member (not shown).

It should be noted that the blower 11 according to this embodiment constitutes a part of the seat air conditioning system. Specifically, the blower 11 promotes ventilation of the seat back 5 by sucking air from the surface of the seat back 5 and blows the sucked air toward the duct member 9 .

<Turning part>
The headrest 7 is provided with at least a deflection portion 13 . The turning portion 13 is an example of an airflow guiding portion that turns the flow direction of the airflow ejected from the ejection port 9A. The turning portion 13 according to the present embodiment is a wall-like portion that turns downward the airflow jetted from the jet port 9A.

That is, the turning portion 13 is provided at the front end side lower end portion of the headrest 7, as shown in FIG. The ejection port 9A opens toward the front of the seat in a substantially horizontal direction. Further, the turning portion 13 is formed of an inclined surface inclined approximately 45 degrees with respect to the horizontal direction at a position shifted toward the front side of the seat from the ejection port 9A.

The ejection port 9A according to this embodiment is a rectangular or oval opening extending in the seat width direction between two stays. For this reason, as shown in FIG. 4, the turning portion 13 according to the present embodiment is configured by a strip-shaped wall portion extending in the seat width direction.

<Diffusion Suppressor>
As shown in FIG. 3, one of the upper ends of the headrest 7 and the seat back 5 (the headrest 7 in this embodiment) is provided with a diffusion suppressing portion 15 . The diffusion suppressing portion 15 is a wall-like member that suppresses the diffusion of the airflow ejected from the ejection port 9A in the seat width direction.

As shown in FIG. 4, the diffusion suppressing section 15 according to this embodiment includes a first diffusion suppressing section 15A, a second diffusion suppressing section 15B, and the like. The first diffusion suppressing portion 15A is provided on one end side of the turning portion 13 in the sheet width direction. The second diffusion suppressing portion 15B is provided on the other end side of the turning portion 13 in the sheet width direction.

For this reason, a groove-shaped jet groove 16 composed of the turning portion 13, the first diffusion suppressing portion 15A, and the second diffusion suppressing portion 15B is formed at the front lower end of the headrest 7 according to the present embodiment. That is, the air ejected from the ejection port 9A circulates along the jet groove 16 and is ejected toward the seated occupant due to the Coanda effect.

<Others>
As shown in FIG. 2, even when the headrest 7 is at the lowest position, there is a gap 17 between the seat back 5 and the headrest 7 through which the airflow ejected from the ejection port 9A can flow.

That is, when the headrest 7 is at the lowest position, the airflow jetted from the jet port 9A toward the front side of the seat is turned downward at the turning portion 13, flows through the gap 17, and flows toward the occupant. Blow out.

When the headrest 7 is at the uppermost position, most of the airflow jetted from the jet port 9A toward the front side of the seat is blown directly toward the occupant without colliding with the turning portion 13 .

3. Features of the vehicle seat according to the present embodiment The headrest 7 according to the present embodiment is provided with a diverting portion 13 that diverts the flow direction of the airflow ejected from the jet port 9A opened between the seat back 5 and the headrest 7. It is

As a result, in the vehicle seat 1 according to the present embodiment, the flow direction of the air ejected from the ejection port 9A positioned between the seat back 5 and the headrest 7 is deflected by the deflecting portion 13 provided in the headrest 7. be done. Thus, for example, even if a short person is seated, it may be possible to supply air to the neck of the seated person.

The turning part 13 turns downward the airflow ejected from the ejection port 9A. This may ensure that even if a short person is seated, air can be supplied to the neck of the seated person.

In the vehicle seat 1, there is a gap 17 between the seat back 5 and the headrest 7, through which the airflow ejected from the ejection port 9A can flow, even when the headrest 7 is at the lowest position. Thereby, the vehicle seat 1 can supply air to the seated occupant even when the headrest 7 is in the lowest position.

The vehicle seat 1 includes a diffusion suppressing portion 15 that suppresses diffusion of the airflow jetted from the jet port 9A in the seat width direction. Accordingly, in the vehicle seat 1, air can be reliably supplied to the neck of the seated person.

The diffusion suppressing portion 15 is provided at the lower end portion of the headrest 7, as shown in FIG. As a result, the diffusion suppressing portion 15 and the turning portion 13 are provided in the headrest 7, so that the configuration of the vehicle seat 1 can be suppressed from becoming complicated.

(Other embodiments)
The vehicle seat according to the above-described embodiment was able to supply air to the neck of the seated person even when the seated person was short in stature. However, the invention disclosed herein is not so limited. That is, the present invention is sufficient if it is a vehicle seat provided with a turning portion 13 for turning the flow direction of the airflow ejected from the ejection port 9A, for example.

The diverter 13 according to the embodiment described above diverted the airflow downward. However, the invention disclosed herein is not so limited. That is, the invention may be configured to turn the airflow upward, in the seat width direction, or backward, for example.

The ejection port 9A according to the above-described embodiment opens toward the front of the seat in a substantially horizontal direction. However, the invention disclosed herein is not so limited. That is, the ejection port 9A may open upward or downward, for example.

The ejection port 9A according to the above-described embodiment was configured with one oblong opening positioned between two stays. However, the invention disclosed herein is not so limited. That is, the ejection port 9A may be composed of, for example, a plurality of circular openings, or one oval opening having a longer diameter dimension larger than the dimension between two stays.

In the above-described embodiment, the diffusion suppressing portion 15 is provided on the headrest 7 . However, the invention disclosed herein is not so limited. That is, the present invention includes, for example, a configuration in which the diffusion suppressing portion 15 is provided at the upper end of the seat back 5, a configuration in which the diffusion suppressing portion 15 is eliminated, or any one of the first diffusion suppressing portion 15A and the second diffusion suppressing portion 15B. A configuration in which a hook is provided may also be used.

In the above-described embodiment, air is supplied to the duct member 9 using the blower 11 for the seat air conditioning system. However, the invention disclosed herein is not so limited. That is, the invention may have a configuration provided with a dedicated fan for supplying air to the duct member 9, for example.

In the embodiment described above, the vehicle seat according to the present disclosure is applied to the vehicle. However, the application of the invention disclosed in this specification is not limited to this, and can also be applied to seats used in vehicles such as railway vehicles, ships and aircraft, and stationary seats used in theaters, homes, etc. Applicable.

Furthermore, the present disclosure is not limited to the above-described embodiments as long as it conforms to the gist of the inventions described in the above-described embodiments. Therefore, in the configuration in which at least two of the above-described embodiments are combined, or in the above-described embodiments, any one of the illustrated constituent elements or the constituent elements described with reference numerals is abolished. It may be configured as

DESCRIPTION OF SYMBOLS 1... Vehicle seat 5... Seat back 5A... Back frame 5B... Back pad 7... Headrest 9... Duct member 9A... Jet port 9B... Air introduction part 11... Blower 13... Turning part 15... Diffusion suppressing part 15A... First diffusion Suppression portion 15B Second diffusion suppression portion 16 Jet groove 17 Gap

Claims (4)

In a vehicle seat mounted on a vehicle,
a seat back for supporting the back of the occupant;
a headrest provided above the seatback for supporting the head of a seated person, the headrest being displaceable at least in the vertical direction with respect to the seatback;
a duct member having an ejection port for ejecting air, the duct member opening toward the front of the seat between the seat back and the headrest;
a turning portion that is provided in the headrest and turns the flow direction of the airflow ejected from the ejection port ;
The vehicle seat is a vehicle seat, wherein the turning portion is a wall-shaped portion provided at a lower end portion on the front end side of the headrest, for turning downward the airflow jetted from the jetting port . 2. The vehicle seat according to claim 1 , wherein even when the headrest is at the lowest position, there is a gap between the seat back and the headrest through which the airflow jetted from the jet port can flow. 3. The vehicle seat according to claim 1 , further comprising a diffusion suppressing portion that suppresses diffusion of the airflow jetted from the jet port in the seat width direction. The vehicle seat according to claim 3 , wherein the diffusion suppressing portion is provided at the lower end portion of the headrest.

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