JP5176588B2 - Sheet blower - Google Patents

Description

  The present invention relates to a sheet blower.

  2. Description of the Related Art Conventionally, there has been known a sheet blower that allows air to pass from the back surface side to the front surface side of the sheet skin in order to control the temperature of the sheet surface, suppress stuffiness, etc. (Patent Document 1).

In patent document 1, it is comprised so that air may be suck | inhaled from the clearance gap which passes the seatbelt (inner belt) provided in the seat back lower edge part, and it avoids that the passenger | crew who seated on the seat obstruct | occluded air intake doing.
JP 2007-223542 A

  However, the gap for passing the seat belt is relatively narrow, and it is difficult to increase the amount of air sucked and thus the amount of air blown. In addition, since the gap is narrow, a suction sound is generated, and there is a possibility that the passenger feels uncomfortable.

  Therefore, an object of the present invention is to obtain a sheet blowing device that can easily increase the amount of air sucked and thus the amount of blown air.

In the present invention, in the seat blower applied to a seat having a retractable armrest, the front side of the seatback is provided between the seat cushion and the portion located under the armrest storage portion of the seatback. In the section where the gap is formed, the lower surface of the gap is inclined downward from the front side of the seat back toward the back side, and the air intake is The main feature is that it is provided so as to face the gap while being spaced upward with respect to the lower surface .

According to the present invention, the lower surface of the gap penetrating from the front side of the seat back to the back side is inclined downward as it goes from the front side of the seat back to the back side, and the air intake is upward from the lower surface of the gap. Because it is provided at intervals, foreign matter that has entered the gap slides down to the back side of the seat back, and the foreign matter remains in front of the air intake, reducing the amount of air sucked in and the air intake Can be suppressed from being sucked to the blower side.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a seat equipped with a sheet blower according to the present embodiment, and FIG. 2 is a sectional view taken along the line II-II in FIG. In each figure, the front of the vehicle is indicated by FR, the vehicle width direction is indicated by WD, and the upper side of the vehicle is indicated by UP.

  A seat blower 1 according to the present embodiment is applied to a horizontally long seat 2 that is a rear seat of a vehicle such as an automobile. The seat 2 includes a seat cushion 3 and a seat back 4 that are both long (horizontal) along the vehicle width direction.

  A retractable armrest 5 is provided at an intermediate portion in the vehicle width direction of the seat 2, and a recess 6 is formed in the seatback 4 as an armrest storage portion for storing the armrest 5. In addition, the recessed part 6 may be penetrated from the surface 4a side (front side) of the seat back 4 to the back surface 4b side, and does not need to be penetrated.

  The armrest 5 is stored in the recess 6 when not in use, and the back surface 5a in use forms a surface substantially continuous with the front surface 4a of the seat back 4. Further, the lower portion 5b of the armrest 5 is supported by the seat back 4 so as to be rotatable about a rotation axis Ax extending along the vehicle width direction by a rotation support mechanism (not shown). During use, the upper portion 5c of the armrest 5 is pulled out to the front side (the vehicle front side in the present embodiment), and the armrest 5 is rotated around the rotation axis Ax and tilted to lie on the surface 4a of the seat back 4. Let At this time, in this embodiment, the lower edge 6a of the recess 6 is set to a position slightly higher than the surface 3a of the seat cushion 3, and a gap G1 is formed at least between the lower portion 5b of the armrest 5 and the surface 3a of the seat cushion 3. It is designed to form.

  Below the concave portion 6, a flat member 7 that is substantially equal in width to the concave portion 6 in a front view and is horizontally long is provided. As shown in FIG. 2, a gap G <b> 2 penetrating from the front surface 4 a side (front side) of the seat back 4 to the back surface 4 b side is formed between the member 7 and the seat cushion 3. Note that the front surface (upper surface) 3a of the seat cushion 3 that forms the lower surface of the gap G2 is directed from the front surface 4a side to the back surface 4b side of the seat back 4 (that is, from the front to the rear of the vehicle) at least in the section where the gap G2 is formed. Tilted downward (towards).

  As shown in FIG. 2, the seat 2 is equipped with a seat blower 1 that allows air to pass from the back surface side to the front surface side of the skin 8 in a specific region of the seat back 4 (blowout region S, see FIG. 1). It is. The sheet blower 1 includes a blower 10 having an axial fan, for example. In the present embodiment, the blower 10 is attached to the plate 16 fixed to the frame 15 of the seat 2.

  The blower 10 sends the air sucked through the air intake port 11 and the duct 12 into the substantially rectangular concave portion 14 formed in the blowing area S through the discharge path 13 in a front view. The air supplied into the recess 14 is blown out of the skin 8S from a large number of small air passage holes (not shown) penetrating the front and back formed in the skin 8S covering the surface side of the recess 14. In addition, a porous flat rectifying member 17 formed of, for example, a foam material and having open cells is accommodated in the concave portion 14, and the air blowing amount is equalized depending on the location in the blowing region S. . The straightening member 17 may be formed with a groove or a hole that forms an air passage. In addition, the air passage hole of the skin 8S may be formed by drilling a through hole in the skin 8S, or the gap of a cloth having many gaps may be used.

  In the present embodiment, as shown in FIG. 2, the air intake 11 faces the gap G <b> 2 formed between the member 7 located under the recess 6 of the seat back 4 and the seat cushion 3. It is provided. The air intake port 11 is provided above the back side of the gap G2 and above the front surface 3a of the seat cushion 3 that forms the lower surface of the gap G2. , The front surface 4a side of the seat back 4) and obliquely downward.

  As shown in FIG. 1, the air intake 11 is formed in an elongated oval shape in the left-right direction (that is, the lateral width direction of the surface 4 a of the seat back 4) in the front view of the seat, and has a flat cylindrical shape. The nozzle 18 is formed as a tip opening.

  Further, in the present embodiment, blowout areas S are set corresponding to two positions on both sides of the armrest 5, that is, positions where the occupant sits on both sides of the armrest 5, and the blower 10 corresponds to each blowout area S. Is provided. And the ducts 12 and 12 branched into two forks on both the left and right sides are connected to each of the blowers 10 from a nozzle 18 arranged at one position below the recess 6 as an armrest accommodating portion.

  According to the above configuration, when the surface 4a of the seat back 4 is at a high temperature, conversely at a low temperature, or when it gets steamed, air is blown out from the blowing area S of the surface 4a of the seat back 4 Adjust the temperature and get a feeling of comfort. The ventilation control may be automatically performed by a temperature sensor or the like, or may be performed based on an operation of a manual switch. Moreover, it is also possible to blow only with respect to the seating blowing area S.

  Here, in the present embodiment, the air intake port 11 is provided so as to face a gap G2 formed between the member 7 located under the recess 6 as the armrest storage portion of the seat back 4 and the seat cushion 3. It was. This gap G2 can be formed relatively wide. Therefore, it becomes easier to ensure a wider flow passage area on the suction side than in the prior art, and it becomes easier to increase the amount of air sucked and thus the amount of air blown. Moreover, it can suppress that a suction sound arises.

  In particular, when the armrest 5 is used, an occupant is seated on both sides of the armrest 5, so that the occupant can more reliably avoid obstruction of air intake, and the above effect can be obtained more reliably. it can. Furthermore, in the case of this embodiment, since it comprised so that the clearance gap G1 might be ensured between the armrest 5 laid down at the time of use and the surface 3a of the seat cushion 3, the air intake amount was ensured more reliably, The said effect can be acquired more reliably.

  Furthermore, by making the peripheral wall portion of the gap G2 (that is, the portion facing the member 7 and the member 7 of the seat cushion 3) relatively hard (for example, harder than the seating region of the seat cushion 3 or the seat back 4), It can be suppressed that the gap G2 is deformed by the deformation of the seat cushion 3 and the seat back 4 accompanying the seating and the like, and the suction amount is reduced. In the present embodiment, since the member 7 is a separate part from the main body of the seat back 4, it is easy to set the member 7 harder than the seat back 4.

  The gap G2 is originally formed at the boundary between the seat cushion 3 and the seat back 4 and is not newly formed to provide the air intake port 11. There is no loss. Further, since the gap G2 is formed relatively wide below the armrest 5, the suction amount can be relatively easily reduced by slightly increasing the height of the gap G2 without impairing the original function and aesthetics of the seat. Can be increased.

  Moreover, in this embodiment, the blowing area | region S which allows air to pass to the surface side from the back surface side of the skin 8S is set in the right and left both sides of the armrest 5, the air blower 10 is provided for every said blowing area | region S, Ducts 12 and 12 for distributing air toward the blower 10 are provided. For this reason, it is possible to share the air intake 11 and its upstream and downstream components (member 7, nozzle 18, etc.) for the two blowout areas S and S, thereby simplifying the configuration accordingly. The manufacturing cost can be reduced.

  In the present embodiment, the air intake 11 is formed to be elongated along the lateral width direction (the vehicle width direction in the present embodiment) of the surface 4 a of the seat back 4. For this reason, the opening area of the air intake port 11 is ensured more widely, and it becomes easy to increase a ventilation volume.

  Further, in the present embodiment, the gap G2 is penetrated from the front surface 4a side (front side) of the seat back 4 to the back surface 4b side, and the surface 3a (upper surface) of the seat cushion 3 forming the lower surface of the gap G2 is passed through the seat back. The air intake 11 was inclined downward from the front surface 4a side to the back surface 4b side, and the air intake port 11 was provided at a distance above the front surface 3a of the seat cushion 3. For this reason, foreign matter or the like that has inadvertently entered the gap G2 is slid down to the back surface 4b side of the seat back 4 along the surface 3a, and the foreign matter remains in front of the air intake 11 to reduce the amount of air sucked Or suction from the air intake 11 to the blower 10 side can be suppressed. In addition, it becomes possible to collect | recover the said foreign material from the area | region R (refer FIG. 2) by the back surface 4b side of the seat back 4. FIG. Further, since the air intake 11 is set above the back side in the front view of the gap G2, there is an advantage that the air intake 11 becomes difficult to see from the outside and does not cause a visually uncomfortable feeling.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

  For example, in the above-described embodiment, the configuration in which the blowing area is provided in the seat back is illustrated, but the present invention can be implemented as a configuration in which the blowing area is provided in the seat cushion. Further, instead of blowing out the sucked air as it is, it may be blown out after being heated, cooled, or dehumidified.

It is a perspective view of the sheet | seat equipped with the sheet | seat ventilation apparatus concerning one Embodiment of this invention. It is II-II sectional drawing of FIG.

Explanation of symbols

G2 Gap S Blowing area 1 Seat blower 2 Seat 3 Seat cushion 3a Surface (upper surface)
4 Seat back 4a Front (front)
4b Back 5 Armrest 6 Recess (armrest storage)
7 Member (the part located under the armrest storage)
8S skin 10 Blower 11 Air intake 12 Duct

Claims (3)

The seat back is provided with a seat back in which an armrest storage portion for storing a retractable armrest is formed, and a seat cushion. The air taken in from the air intake port is sent out by a blower, and the skin of the seat back or the seat cushion In the sheet blowing device that passes from the back side to the front side,
Forming a gap penetrating from the front side of the seat back to the back side between the portion of the seat back located below the armrest storage portion and the seat cushion;
In the section in which the gap is formed, the lower surface of the gap is inclined downward from the front side to the back side of the seat back, and the air intake is spaced upward with respect to the lower surface of the gap. A sheet blower characterized by being provided to face the gap while opening . Set a blowing area that allows air to pass from the back side to the front side of the skin on the left and right sides of the armrest, and provide the blower for each blowing area,
The sheet blower according to claim 1, further comprising a duct that distributes air from the air intake toward each blower.   The seat air blower according to claim 1 or 2, wherein the air intake port is formed to be elongated along a lateral width direction of the surface of the seat back.

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