JPH0417063Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a ventilated seat for a vehicle that is easy to manufacture and allows good spread of cold air.

[Prior Art] Even if a vehicle is equipped with an air conditioner, passengers may feel hot during long hours of driving due to poor ventilation in the portion of the seat that contacts the body.

In the seat disclosed in Utility Model Publication No. 50-81525,
The interior of the seat is hollow, and air is blown out through openings in the resin upholstery, but only the parts of the body that are in contact with the openings are cooled, so it is not necessarily comfortable. In the above-mentioned seat, it is necessary to seal the lower side of the seat portion with the skin material, and it takes time and effort to apply the skin material in relation to the seat back and forth movement mechanism. Further, even if the interior of the seat is hollow, if the cushioning material does not have good breathability, the structure will become complicated, such as providing the cushioning material with an air passage that communicates the hollow part with the opening in the skin material.

In the ventilated seat disclosed in Japanese Patent Application Laid-Open No. 58-41512, a pipe material serving as an air conditioning duct penetrates the inside of the seat, passes through a flexible duct, extends into the inside of the backrest, and a large number of pipes are inserted in the middle of the pipe material. It has an air outlet. The pipe material is buried inside a cushioning material such as urethane and covered with a resin skin material. Therefore, the outlet of the tube is actually communicated with the outlet of the skin material through the passage of the cushioning material. Although the pipe has the advantage of serving as a reinforcing material for the seat, the structure of the cushioning material's passage is complicated, and it takes time to assemble the cushioning material so that the passage of the cushioning material matches the outlet of the tube and the outlet of the skin material. is multiplied.

[Problems to be solved by the invention] In view of the above-mentioned problems, the purpose of the invention is to simplify manufacturing and assembly, and to ensure that the passage inside the seat and the exhaust port are integrated with the core body, so that they can be distributed evenly from the entire surface of the seat. To provide a ventilated seat for a vehicle from which air is blown out.

[Means for Solving the Problems] In order to achieve the above object, the configuration of the present invention is that air conditioning ducts are connected to three duct holes provided in the horizontal plate of the seat frame, and the seat and backrest are connected to the left and right sides. A core body consisting of a flat hollow body made of hard resin that communicates through a pair of bellows-shaped ducts is joined to the seat frame and back frame, and a breathable cushioning material is placed on top of the core body to create a woven fabric. The seat portion of the core body is partitioned into three internal spaces by partition walls in the front and back direction formed by press-bonding the upper wall and the lower wall in a groove shape,
The air supply ports provided on the lower wall of each internal cavity communicate with the duct hole, the central internal cavity communicates with the exhaust port on the upper wall, and the internal cavities on both sides communicate with the duct part and the internal cavity of the backrest. It communicates with the exhaust port on the upper wall.

[Function] According to the present invention, the core of the seat and the backrest, which constitute the frame of the seat, are molded from a hard resin into a flat hollow body by blow molding. The rear edge of the seat and the lower edge of the backrest are integrally connected by a bellows-shaped duct, and the cold air from the air conditioner enters the inner space of the seat, passes through the exhaust port, and is discharged to the fabric as a skin material. It is blown out from the weave of the cloth onto the entire seat area. At the same time, the cold air enters the inner space of the backrest through the inner space of the seat and the flexible duct,
It is blown out from the weave of the fabric used as the skin material to the entire surface of the backrest through the exhaust port.

[Embodiment of the invention] As shown in Fig. 2, the seat has a seat part 7 and a backrest 8.
It consists of The seat part 7 is adjustable in forward and backward movement, and the backrest 8 is configured to be adjustable in tilting forward and backward relative to the seat part 7. A duct 2 connected to the outlet of the air conditioner is arranged on the floor of the vehicle, and extendable ducts 4, 5, and 6 are connected to the ends of the duct 2, which extend to the lower side of the seat 7 via an air pump unit 3. be done.

As shown in FIG. 3, a pair of left and right seat frames 31 that support the seat 7 and are movable back and forth are connected at their front ends by a horizontal plate 33 and at their rear ends by a horizontal plate 34, respectively. Duct holes 14, 1 provided in the horizontal plate 33
The terminal ends of the ducts 4, 5 and 6 are connected to the ducts 5 and 16, respectively, and are communicated with the inner space of the seat 7 as described later.

The lower ends of the left and right backrest frames 36 are connected by a support shaft 35 between a bracket 32 provided at the rear end of the seat frame 31, and can be adjusted to an appropriate inclination by a known reclining mechanism. Backrest frame 3
6 are connected to each other by a horizontal plate 37.

As shown in FIGS. 1 and 4, for the frame configured as described above, the core body 9 is formed from a synthetic resin, preferably a hard resin, by blow molding. The rear end portion 17c of the seat portion 17 and the lower edge portion of the backrest 18 are integrally connected by a pair of left and right bellows-shaped duct portions 20. The aforementioned duct holes 14 to 16 are formed on the lower wall of the seat portion 17.
Air supply ports 14a to 16a are provided that match.
An exhaust port 19 is located in the center of the upper wall of the seat 17, and the backrest 18
Exhaust ports 23 and 25 are provided on the upper and lower walls, respectively.

As shown in FIG. 5, the inner cavity of the seat 17 of the core body 9 is divided into at least three inner cavities 30 by a partition wall 12 formed by press-bonding an upper wall 17a and a lower wall 17b in a groove shape. The air supply ports 14a, 15a, and 16a described above are provided in each inner space 30. That is, as shown in FIG. 1, a partition wall 12 extending laterally is formed near the front edge of the seat portion 17, and is connected to the air supply port 15a by a pair of left and right partition walls 13 extending rearward from the partition wall 12. An inner space 30 is defined. An exhaust port 19 is provided in the upper wall 17a that partitions the inner space 30. Reinforcing protrusions 10 extend rearward from both ends of the partition wall 12, and branch-like reinforcing protrusions extend laterally from the reinforcing protrusions 10.

The inner space 30 provided with the air supply port 14a is connected to the partition wall 1
The partition wall 22, 2 of the backrest 18 is partitioned by the left edge of the backrest 18 and
It communicates with an inner space 30 surrounded by 1. Bulkhead 2
The upper wall 17 of the inner space 30 divided by 1 and 22
An exhaust port 23 is provided at a.

The inner space 30 provided with the air supply port 16a is connected to the partition wall 1
2, 13 and the right side edge, and communicates with the inner space 30 surrounded by the partition walls 21, 24, 24a via the right duct part 20. An exhaust port 25 is provided in the lower wall 17b (strictly speaking, the back surface) of the inner space 30 to blow out cool air to the occupants in the rear seats. Reinforcement ridges 26 extend from each partition wall 24, 24a to the side.
will be extended. A reinforcing ridge 27 extends upward from the partition wall 24.
will be extended.

The illustrated embodiment shows a bucket-type seat, and the seat portion 17 has both side edges curved slightly upwards from the center. Similarly, both side edges of the backrest 18 are curved forward. A projecting piece 38 constituting a headrest is formed upward from the backrest 18. The core body 9 is integrally formed by blow molding as described above.
Preferably, bolts are inserted into bolt insertion holes drilled in the partition wall 12, the reinforcing ridges 26, etc., and fastened to the horizontal plates 33, 34, 37 shown in FIG. Core body 9
A cushioning material with excellent air permeability, such as palm lock, is applied to the surface of the material, and a skin material made of woven fabric is sewn into the material.

As shown in FIG. 6, the lower wall 17b of the seat portion 17 presses the air supply port 15a against the elastic sealing member 40 arranged so as to surround the duct hole 15 of the horizontal plate 33.
The duct 5 and the inner space 30 of the seat portion 17 are communicated with each other. The sealing member 40 is a tapered ring formed on the horizontal plate 33.
is fixed in advance. The air supply port 15a of the lower wall 17b is also formed into a tapered hole that projects into the inner space 30. Similarly, the air supply ports 14a, 15a, and 16a are connected to the duct hole 1.
4 and 16.

Next, the operation of the ventilated vehicle seat according to the present invention will be explained. Cool air from the exhaust port of the well-known air conditioner is distributed almost equally to each duct 4, 5, 6 by the air pump unit 3 via the duct 2, and then to the 3 of the seat 17 via the air supply ports 14a, 15a, 16a. It is supplied to two inner cavities 30. The cold air supplied from the air supply port 15a to the inner space 30 at the center of the seat portion 17 is blown out from the exhaust port 19 to the occupant's body through the texture of the woven fabric serving as the skin material. The cool air supplied from the air supply port 14a to the inner space 30 of the seat portion 17 passes through the left duct portion 20 to the exhaust port 23 of the backrest 18.
It is blown out onto the backs of the passengers.

The cool air supplied from the air supply port 16a to the inner space 30 of the seat portion 17 passes through the duct portion 20 on the right side and is blown out from the exhaust port 25 of the backrest 18 to the rear seat.
Each exhaust port 19, 23, 25 depending on the seating position of the passenger.
The air pump unit 3 evenly distributes the cold air to each duct 4, 5, 6 even if the blowing resistances of the ducts are different.

The bellows-shaped duct part 20 has a seat part 17 and a backrest 18.
The inner spaces 30 of the backrest 18 are communicated with each other and can be freely bent to adjust the inclination of the backrest 18.

[Effects of the invention] The seat according to the invention has a cushioning material with good air permeability applied to the surface of the core and covered with a skin material made of woven fabric. All you have to do is place it on top of the seat, align the air supply port of the core with the duct hole in the seat frame, connect it, apply a cushioning material to the top of the core, and sew it to cover it with the outer skin made of woven fabric. .
Since there is no need to cover the back and forth movement adjustment mechanism on the lower side of the seat with the skin material, attachment of the skin material is easy.

A plurality of passages are formed in the inner cavity of the core of the seat part by partition walls in the front and rear direction, and the passages on both sides communicate with the inner cavity of the backrest through bellows-shaped duct parts. Therefore, cool air is almost evenly supplied to the seat and backrest from the plurality of duct holes provided in the seat frame.

The cold air blown from the exhaust port of the core passes through gaps in the cushioning material and is blown out from the texture of the upholstery over the entire surface, so the body parts that come into contact with the seat are cooled almost evenly and do not get stuffy.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the core of a ventilated vehicle seat according to the present invention, Fig. 2 is a perspective view of the seat, Fig. 3 is a perspective view of the frame of the seat, and Fig. 4 is the same as Fig. 1. FIG. 5 is a front sectional view showing the main structure of the core, and FIG. 6 is a front sectional view showing the joint between the core and the frame. 3... Air pump unit, 4, 5, 6... Duct, 9... Core body, 10, 26, 27... Reinforcement protrusion, 12, 13, 21, 22, 24, 24a...
Partition wall, 14a, 15a, 16a...Air supply port, 17
... Seat, 18... Backrest, 19, 23, 25...
...Exhaust port, 20...Duct part, 30...Inner space,
31...Seat frame, 33...Horizontal board.

Claims (1)

[Scope of utility model registration request] An air conditioning duct is connected to the three duct holes provided in the horizontal plate of the seat frame, and the seat and backrest are connected through a pair of bellows-shaped ducts on the left and right sides.The core body is made of a flat hollow body made of hard resin. It is connected to the seat frame and the backrest frame, a breathable cushioning material is placed on the core body and covered with a woven fabric, and the seat part of the core body is pressed and connected to the upper wall and the lower wall in a groove shape. The three inner cavities are divided by front and rear partition walls, each of which has an air supply port on the lower wall that communicates with the duct hole, and the central inner space that communicates with the exhaust port on the upper wall. , a ventilated seat for a vehicle in which the inner cavities on both sides communicate with the exhaust port on the upper wall through the duct part and the inner cavity of the backrest.