JP2015089467A - Blast seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weight-saving blast seat that can sufficiently perform blast and that is excellent in seating feeling.SOLUTION: A large number of air outlets 10A, 11A and 20A are opened in a seat back body 2 and a seat cushion body 1, which are blow-molded in approximately outer shapes of a seat back SB and a seat cushion SC, and a blower module is attached to the seat back body 2 and the seat cushion body 1 so that internal spaces of the seat back body 2 and the seat cushion body 1 can serve as chambers.

Description

The present invention relates to a vehicle air blowing sheet having an air conditioning function.

2. Description of the Related Art An automobile seat includes a blower sheet that blows air toward a seated person from a seat cushion seating surface and a seat back back surface.

For example, as disclosed in Patent Document 1, this blower sheet is provided with a ventilation path such as a groove for ventilation on the trim cover side of a foam pad constituting a seat cushion and a seat back. A duct arranged so as to penetrate the inside of the pad communicates with the ventilation channel, and hot air and cold air blown from the blower structure are ducted, and the trim cover that covers the pad via the ventilation channel is closer to the seated person I am blowing.

Japanese Patent No. 4728311

Since the conventional products described above are provided with a ventilation passage for ventilation in the pad, the ventilation passage is crushed by a load at the time of sitting and air blowing performance is impaired, so that a sufficient air volume cannot be blown to the seated person.

On the other hand, in order to prevent the air passage from being crushed, if the air passage or its corresponding portion is formed with a member that is not easily deformed, there is a problem that the seat becomes a foreign object when seated and the seat cannot be used comfortably.

Then, this invention aims at providing the ventilation sheet which can fully perform the said ventilation, is excellent in a seating feeling, and can achieve weight reduction further.

The vehicle blower seat according to the present invention includes a seat back body or a seat cushion body formed by blow molding into an outer shape of a substantially seat back or a substantially seat cushion,
A number of air outlets opened in the seat back body or seat cushion body;
It consists of the air blower with which the said seat back body or the seat cushion body was mounted | worn.

In this blower sheet, since the seat back body and the seat cushion body have a hollow structure, the entire interior of the seat back body and the seat cushion body becomes a space for air blowing, and a conventional air blowing member such as a duct becomes unnecessary. In addition, since the seat back body and the seat cushion body are small in space and have a low air blowing resistance, the driving force of the air blower is not required so much, power saving is achieved, and noise and vibration of the air blower can be reduced.

In addition, since the space becomes a chamber and the internal pressure can be made constant, the air volume and wind speed can be adjusted by adjusting the opening area of each outlet.

Since the seat back body and the seat cushion body have a hollow structure, it is possible to reduce the weight of the seat, and since the seat back body and the seat cushion body have appropriate deflection, the seating feeling is improved.

It is preferable that the surface of the seat back body or the seat cushion body is covered with a breathable trim cover or a non-breathable trim cover having a through hole in a portion corresponding to the air outlet.

By doing in this way, the seating feeling of a sheet | seat improves and the external appearance quality of a sheet | seat is also improved. The cover of the trim cover protects the seat back body and the seat cushion body, which are blow molded products, and can prevent damage to the seat back body and the air outlet of the seat cushion body.

By arranging an air outlet that blows out toward the foot of the seated person on the front side of the seat cushion body that does not contact the body of the seated person when sitting, the air outlet of the seated person is not blocked. The air can be sufficiently blown even before, and warm air and cold air can be blown to the entire lower body of the seated person.

Similarly, by providing an air outlet that blows out toward the foot of the rear seat occupant on the rear side of the seat cushion body that is not blocked by the body of the seat occupant when seated. Hot air and cold air can be blown from the lower leg to the toes.

Further, by providing an air outlet that blows out toward the rear seat occupant on the back of the back of the seat back body, since there is no air blow resistance at the air outlet, the air can be sufficiently blown, and only the rear seat occupant The entire interior of the vehicle can be heated and cooled.

According to the present invention, the air blower performance is not impaired by the seating of the seated person, and it is not necessary to arrange a duct or the like inside the seat. Moreover, weight reduction can be achieved and the ventilation sheet excellent in a seating feeling can be provided.

It is a partial notch perspective view of the ventilation sheet for vehicles concerning the present invention. It is the XX line end view of FIG. FIG. 2 is an end view taken along line YY in FIG. 1. It is a partial notch perspective view of the state seen from the back back direction of the ventilation sheet for vehicles of FIG.

An embodiment of the present invention will be described with reference to FIGS.
As an embodiment of the air blowing sheet for a vehicle according to the present invention, a case of an air blowing sheet for an automobile front seat will be described.

In the figure, SC is a seat cushion, SB is a seat back, and is connected to the seat cushion SC by a reclining device or the like. The illustrated seat cushion SC and seat back SB are both blow molded seat cushion body 1 and seat back body 2 covered with trim covers 3 and 4 to protect seat cushion body 1 and seat back body 2, And the appearance quality is improved.

The seat cushion body 1 and the seat back body 2 described above are reinforced and supported by frames 6 and 7 made of metal pipes disposed inside.

The seat cushion body 1 has a substantially outer shape of the seat cushion SC, and the seat back body 2 has a substantially outer shape of the seat back SB, mainly composed of an olefin such as polypropylene, depending on requirements such as heat resistance, cold resistance, and strength. As appropriate, a blended product of an engineer resin such as nylon or polycarbonate and a polyolefin is used as a raw material and is molded by blow molding.

A large number of air outlets 10A, 11A, and 12A are opened in the upper portion 10, front side portion 11, and rear side portion 12 of the seat cushion body 1, and the air outlet 10A in the upper portion 10 is formed on the hips and thighs of the seated person. Further, the air outlet 11A provided in the front side portion 11 is further provided in the rear side portion 12 so as to blow air from the lower leg portion of the seated person toward the toes. The air outlet 12A is formed so as to blow air from the lower leg of the rear seat occupant toward the toes.

The illustrated seat cushion body 1 is covered with a trim cover 3 and fixed by means such as adhesion. The trim cover 3 formed of a non-breathable member has a vent hole opened at a position corresponding to the air outlets 10A, 11A, and 12A, and the trim cover 3 made of a gas permeable member is a blower outlet. It is formed so as to be ventilated from the portions 30A, 31A, 32A corresponding to 10A, 11A, 12A.

On the other hand, air outlets 20A and 22A are opened in the front surface portion 20 and the back back upper portion 22 of the seat back body 2, and the air outlet 20A is opened toward the rear seat occupant direction. Hot air and cold air are blown.
Each of the air outlets 10A, 11A, 12A, 20A, and 22A described above is configured to adjust the air volume and the air speed of the warm air and the cold air for each part of the seated person by adjusting the opening area.

The seat back body 2 is covered with a trim cover 4 sewn in a bag shape. In the trim cover 4 having air permeability like the seat cushion body 1, a portion 40A corresponding to the air outlets 20A, 22A, It is comprised so that it may ventilate from 41A outside.
In the figure, reference numeral 40 denotes a front portion of the trim cover 4, and 41 denotes a rear portion of the trim cover 4.

Since the air outlets 11A, 12A, and 22A have no obstacle when the air is blown out, there is no resistance to the air and the air can be sufficiently and effectively sent.

In the drawing, reference numerals 50 and 51 denote air blowers, which have a cooling and heating function, and are attached to attachment ports 22B provided in the seat cushion body 1 and the seat back body 2.

Accordingly, the cold air and the hot air from the air blowers 50 and 51 are blown into the chamber which is the internal space of the seat cushion body 1 and the seat back body 2, so that the internal pressure becomes constant, and the air outlets 10A, 11A, 12A, 20A, The air is blown from 22A at the same air volume and speed.

And since the thing which becomes ventilation resistance, such as a duct and the ventilation flow path for ventilation, is not used, the operating efficiency of the air blowers 50 and 51 is good, and it can aim at power saving, the noise by the air blowers 50 and 51, Vibration can be reduced. Moreover, since no duct or the like is used, the number of parts is small, and the cost can be reduced.

In the illustrated example, the seat cushion body 1 and the seat back body 2 are covered with the trim covers 3 and 4, but the present invention can achieve the object without being covered with the trim covers 3 and 4. Needless to say.

SC is a seat cushion SB is a seat back 1 is a seat cushion body 2 seat back bodies 10A, 11A and 12A are air outlets 20A for the seat cushion body, 22A is an air outlet 22 for the seat back body, and an upper back 3 of the seat back body, 4 is a trim cover 50, 51 is a blower

Claims (5)

A seat back body or a seat cushion body formed by blow molding into an outer shape of a substantially seat back or a substantially seat cushion;
A number of air outlets opened in the seat back body or seat cushion body;
An air blowing seat for a vehicle, comprising: an air blowing device attached to the seat back body or the seat cushion body. 2. The vehicle blower seat according to claim 1, wherein a surface of the seat back body or the seat cushion body is covered with a breathable trim cover or a non-breathable trim cover having a through hole in a portion corresponding to the air outlet. . The blower seat for vehicles according to claim 1 or 2, wherein a blower outlet that blows out from a lower leg of a seated person toward a toe is disposed on a front side portion of the seat cushion body. The blower seat for a vehicle according to claim 1 or 2, wherein an air outlet that blows out from a lower leg portion of a rear seat occupant toward a foot tip is provided on a rear side portion of the seat cushion body. The blower seat for vehicles according to claim 1 or 2 which provides a blower outlet which blows off toward the backseat occupant at the back back upper part of said seat back body.