JP2000043536A - Air passage switching device and vehicular air- conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of hammering noise due to collision between a film member and a lattice. SOLUTION: Lattices 22a and 23a to partition an opening surface into a plurality of sections are formed at opening parts 22 and 23, and the lattices 22a and 23a are arranged in parallel in the slide direction A of a slide door 26. The slide door 26 is provided with a film member 26b to be forced into contact bonding to the end faces of the peripheral edge seal surfaces 22b and 23b of the opening parts 22 and 23 and the end faces of the lattices 22a and 23a to close the opening parts 22 and 23, and a door base plate 26a to support a film member 26b. An elastic press member 26e to press the film member 26b against peripheral edge seal surfaces 22b and 23b and the end faces of the lattices 22a and 23a is arranged at the base plate 26a. This constitution maintains the film member 26b in a state to always press the film member 26b against the end faces of the peripheral edge seal surfaces 22b and 23b and the lattice 22a and 23a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air passage switching device for switching an air passage by a slide door sliding along an opening of the air passage, and a vehicle air conditioner using the same.

[0002]

2. Description of the Related Art The present applicant has disclosed in Japanese Patent Laid-Open No. 8-258.
Japanese Patent Publication No. 538 and the like have already proposed a type in which an air passage in a vehicle air conditioner is switched by using a slide door of this type. In this conventional technique, as shown in FIG.
6a and a resin film member 26b supported by the door substrate 26a, and the wind pressure in the air passage through the opening 26c provided in the door substrate 26a is reduced.
b.

[0003] The wind pressure causes the film member 26b to move to the peripheral sealing surfaces 22b, 2b of the openings 22, 23 of the case 12a.
3b, the case-side openings 22, 23
Further, the slide door 26 is slid, and the film member 26b is separated from the case-side openings 22 and 23, thereby opening the case-side openings 22 and 23. Thereby, the air passage can be switched.

[0004]

By the way, when the film type sliding door 26 as described above is actually manufactured and examined, when the opening areas of the case side openings 22 and 23 become large, the openings 22 and 23 are closed. In this state, a phenomenon occurs in which the film member 26b enters the openings 22 and 23 with a large curve as shown in FIG. Then, a gap is generated between the peripheral sealing surfaces 22b and 23b of the openings 22 and 23 and the film member 26b, and there is a problem that air leakage occurs as indicated by an arrow B.

[0005] The film member 26b has an opening 22,
When the operating position of the slide door 26 is moved next, the film member 26b
Of the sliding door 26 cuts into the peripheral corners of the openings 22 and 23 and hinders the movement of the sliding door 26.
There is a problem that the operating force of the device is increased. Therefore, FIG.
2, grids 22a and 23a are provided on the side of the case 13 between the openings 22 and 23 in the direction perpendicular to the plane of the drawing.
Was formed to suppress the curvature of the film member 26b. However, if only the lattices 22a and 23a were formed, the film member 26b would
It has been found that there is a problem that a hitting sound is generated by colliding with the object.

That is, the film member 26b has a certain degree of flexibility, a small frictional resistance, and a non-permeable resin material, for example, PET (polyethylene terephthalate).
Although it is made of a film, it is formed of a material having considerable hardness and rigidity in order to secure necessary strength.
6b collides with the end faces of the gratings 22a and 23a to generate a tapping sound.

Further, the film member 26b is connected to the door substrate 26.
Since a predetermined distance is set between the sliding door 26 and the sliding door 26, the film surface is distorted into a wavy state (see FIG. 12) as the slide door 26 moves. As a result, the film member 26b collides with the lattices 22a and 23a due to the elastic reaction force caused by this distortion and generates a tapping sound, or the film member 26b vibrates due to the vibration during traveling of the vehicle and the lattice 22a, A hitting sound may be generated by colliding with 23a.

Further, the corrugated uneven surface of the film member 26b is moved by the
Contact and detachment with the end face of 3a may be repeated and chatter may be generated. The present invention has been made in view of the above points, and has as its object to prevent occurrence of a tapping sound caused by a collision between a film member and a lattice.

[0009]

In order to achieve the above object, according to the present invention, the air passages (22, 2
3) A grid (22a, 23a) for partitioning the opening surface into a plurality of sections is formed, and the grids (22a, 23a) are arranged in parallel with the sliding direction (A) of the slide door (26) to form an air passage (22). , 23) peripheral sealing surfaces (22b, 23)
b) and a film member (26) pressed against the end faces of the grids (22a, 23a) to close the air passages (22, 23).
b) and a door substrate (26a) supporting the film member (26b) are provided on the slide door (26), and the film member (26b) is provided on the peripheral sealing surfaces (22b, 23b) of the air passages (22, 23). And lattices (22a, 23a)
Pressing means (26e) for pressing against the end face of the door substrate (26).
a) is provided.

According to this, the phenomenon that the film member (26b) enters the air passages (22, 23) with a large curve as shown in FIG. 11 can be reliably prevented by the grids (22a, 23a). Moreover, the film member (26b)
Can always be kept pressed against the peripheral sealing surfaces (22b, 23b) and the end surfaces of the lattices (22a, 23a), so that the film member (26b) is vibrated by the vibration at the start of blowing air into the air passage or when the vehicle travels. Peripheral sealing surface (22
b, 23b) and the end faces of the grids (22a, 23a) can be prevented. Therefore, the film member (26b)
The hitting sound caused by the collision can be prevented from occurring.

Further, since the pressing member (26e) can prevent the film member (26b) from forming a wavy uneven surface, the wavy uneven surface is formed by the gratings (22a, 23a).
The phenomenon of intermittent repetition of contact and detachment with the end face of a) is eliminated, and chattering noise due to repetition of intermittent contact and detachment can be satisfactorily prevented. As in the second aspect of the present invention, the pressing means (26e) can be made of an elastic material that presses the film member (26b) with an elastic reaction force.

The pressing means (26e) has an elongated shape extending in parallel with the sliding direction (A) of the slide door (26). (26e) is connected to the peripheral sealing surfaces (22b, 23b) of the air passages (22, 23) and the grids (22a,
A plurality of arrangements can be made corresponding to the end faces of 3a).

Further, among the plurality of pressing means (26e),
The pressing means (26e) for pressing the film member (26b) against the end face of the grid (22a, 23a) may be disposed at a position directly facing the end face of the grid (22a, 23a), as described in claim 4. Alternatively, the lattices (22a, 23a) may be arranged at a nearby position shifted laterally from the end face of the lattice (22).

Further, as described in claim 6, the present invention is suitably implemented as an air passage switching device for opening and closing a plurality of air passages (22, 23) of air blown into a vehicle cabin in a vehicle air conditioner. it can. In addition, the code | symbol in the parenthesis of each said means shows the correspondence with the concrete means of embodiment mentioned later.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 7 show a first embodiment of the present invention. A vehicle air conditioner of this embodiment air-conditions a rear seat space of a one-box vehicle having a large cabin. The present invention relates to a rear seat air conditioner.

First, in FIG. 1, reference numeral 10 denotes a rear-seat vehicle air conditioner, and the main body of the air conditioner 10 is installed between a vehicle outer wall and a vehicle inner wall at a position near the floor at the rear of the vehicle. The vehicle air conditioner 10 includes a blower unit 11 and an air conditioner unit 12 that are roughly arranged in the vehicle longitudinal direction. The blower unit 11 is for sucking the inside air in the rear part of the vehicle compartment into the air conditioner 10, and in the present embodiment, the vehicle air conditioner sucks only the inside air. The blower unit 11 has inside air suction ports (not shown) formed on both sides in the vehicle width direction (the front and back directions in FIG. 1).

The blower unit 11 is provided with a centrifugal electric blower 13. The blower 13 has a centrifugal fan 14 and a fan drive motor 14a, and the centrifugal fan 14 is disposed in a scroll casing 15. A duct portion 16 that forms a flow path extending in the vehicle front-rear direction is formed on the air downstream side of the scroll casing 15 of the blower unit 11. The duct portion 16 changes the flow of the blast air blown from the blower unit 11 from below to above and introduces the blast air into the evaporator 17. The outlet of the blower unit 11 is connected to the inlet of the air conditioner unit 12 by the duct 16.

The air-conditioning unit 12 includes the blowing unit 1
1 and a resin case 12
The air passage is formed so as to extend upward from below by a. An evaporator 17 serving as a heat exchanger for cooling conditioned air is provided in a case 12a of the air conditioner unit 12.
And a heater core (heating heat exchanger) 18 located on the downstream side of the air. The evaporator 17 and the heater core 18 are arranged in the air conditioner unit 12 so as to be laminated in the vehicle up-down direction such that the ventilation surface is substantially horizontal.

Therefore, the air blown from the blower 13 flows from the front to the rear of the vehicle by the duct portion 16 and is then introduced into the case 12a of the air conditioner unit 12. The flow of the blown air introduced into the case 12a changes from the lower side to the upper side, and the evaporator 17 and the heater core 18
Pass through.

The evaporator 17 includes a compressor (not shown)
A well-known refrigeration cycle is connected to the condenser, the liquid receiver, and the pressure reducer by piping, and cools and dehumidifies the air in the case 12a. The heater core 18 is a heating heat exchanger that uses hot water (cooling water) from an automobile engine as a heat source, and heats the cool air cooled by the evaporator 17.

In the present embodiment, a hot water valve 19 for adjusting the amount of hot water to the heater core 18 is provided in the hot water circuit of the heater core 18, and the opening of the hot water valve 19 is adjusted to adjust the heater core 18.
The temperature of the air blown into the vehicle cabin is adjusted by adjusting the amount of hot water supplied to the vehicle. Further, a cool air bypass passage 20 through which the air (cool air) passing through the evaporator 17 bypasses the heater core 18 is provided in the case 12 a of the air conditioner unit 12. This cool air bypass passage 2
0 is opened and closed by the cool air bypass door 21.

In the case 12a of the air conditioner unit 12, a face opening 22 and a foot opening 23 are formed in a downstream portion (upper portion of the vehicle) of the heater core 18. The face opening 22 is formed in the heater core 1.
The air-conditioning air, the temperature of which is adjusted in step 8, is directed toward the upper body of the rear passenger, and a rear face air outlet (not shown) for the rear seat of the vehicle via a face duct 24.
It is connected to.

On the other hand, the foot opening 23 is for blowing the conditioned air whose temperature has been adjusted by the heater core 18 toward the feet of the rear occupant. Is connected to a rear seat foot outlet (not shown) located at the foot portion of the vehicle. The opening 22 for the face and the opening 23 for the foot are opened and closed by a slide door 26, whereby a well-known face mode, bi-level mode, and foot mode can be switched as a blowing mode.

Next, a specific example of the drive mechanism of the slide door 26 will be described with reference to FIGS. The sliding door 26 is provided with a face opening 22 and a foot opening 23 provided in the case 12a of the air conditioner unit 12.
Slides in the direction of arrow A shown in FIG. As shown in FIGS.
6 includes a door substrate 26a and a film member 26b supported by the door substrate 26a. Door board 26a
Is formed in a cross-shaped flat frame shape (FIG. 6) using a resin such as polypropylene. A film member 26b is mounted on the upper surface (the surface on the side of the openings 22, 23) of the door substrate 26a so as to cover the four openings 26c of the door substrate 26a. The film member 26b is used to close the openings 22 and 23 so as to close the openings 2 and 23.
It has an area larger than 2,23.

The film member 26b is formed of a thin resin material having a certain degree of flexibility, a small frictional resistance, and no air permeability. Specifically, the film member 26b is made of, for example, a PET (polyethylene terephthalate) film having a thickness of about 188 μm. The door substrate 26a is connected to the case 12a by the four openings 26c.
The internal wind pressure can be applied to the film member 26b.

The face opening 22 and the foot opening 23 of the case 12a of the air conditioner unit 12 have a substantially rectangular shape as shown in FIG. 4, and grids 22a and 23a are integrally formed at the center thereof. . This grid 2
2a and 23a are sliding (moving) directions A of the sliding door 26.
And the opening surfaces of the openings 22 and 23 are divided into two. Here, the peripheral sealing surfaces 22b and 23b of both openings 22 and 23 and the end surfaces of the lattices 22a and 23a are
As shown in FIG. 7, which will be described later, the slide door 26 is formed on the same plane as the film member 26b.

The cross section of the door substrate 26a is shaped like a square cross-section.
3b and a plate surface 26d (FIG. 6) extending in parallel to the door sliding direction A opposite to the end surfaces of the lattices 22a and 23a, and an elastic pressing member 26e is fixed to the plate surface 26d by means such as adhesion. I have. The elastic pressing member 26e is
It has an elongated shape with a rectangular cross-section extending with a width slightly smaller than the width of d.

The thickness t of the elastic pressing member 26e in the free state
In FIG. 6, the distance L (FIG. 7) between the door substrate 26 a and the peripheral sealing surfaces 22 b and 23 b on the case 12 a side in a state where the slide door 26 is assembled in the case 12 a is set. Thus, when the slide door 26 is assembled into the case 12a, the elastic pressing member 26e can be elastically compressed in the thickness direction t by a predetermined amount. As a result, an elastic reaction force is generated in the elastic pressing member 26e, and the film member 26b is moved by the elastic reaction force to the peripheral sealing surfaces 22b and 23b of the openings 22 and 23 and the lattice 2
The end faces 2a and 23a can be constantly pressed with a predetermined force.

As a specific design example, the elastic pressing member 26
e, the plate thickness t in the free state is t = 5 mm, the interval L = 4 mm, the elastic pressing member 26e is elastically compressed by 1 mm, and the film member 26b is always kept on the peripheral sealing surfaces 22b, 23b.
Press to the side. As shown in FIG. 7, when the air conditioner is operating, the film member 26b causes the peripheral sealing surface 22 of the opening 22 or 23 to be moved by wind pressure applied through the opening 26c.
The openings 22 or 23 can be reliably closed by being pressed against the end faces of the b, 23b and the lattices 22a, 23a.

As described above, since the film member 26b performs the sealing function, the elastic pressing member 26e does not need the sealing function.
Since it does not directly slide on the surface on the case 12a side only by contacting the surface 6b, there is no need to particularly increase the durability.
Therefore, if the elastic pressing member 26e is an elastic material, an inexpensive material can be used. Specifically, a sponge-like porous resin foam material can be used as the elastic pressing member 26e.

Next, a specific mounting structure of the film member 26b will be described. The film member 26b is formed into a shape having bent portions 26f at both ends in the door sliding direction A as shown in FIG. 26f has a plurality of circular mounting holes 26
g is open. On the other hand, at both ends of the door substrate 26a,
The same number of the mounting pins 26h as the mounting holes 26h are integrally formed so as to protrude, and after fitting the mounting holes 26g of the bent portion 26f of the film member 26b to the mounting pins 26h, the distal end portion of the mounting pin 26h is heat-sealed. Film member 26b
Is attached to the door substrate 26a. 4 and 5,
In FIG. 7, 26i is an enlarged portion of the distal end portion of the mounting pin 26h after heat caulking.

Further, two guide pins 26j are integrally formed on two sides of the door board 26a on both left and right sides in a direction orthogonal to the door sliding direction A, respectively. The guide pin 26j is for guiding the sliding of the slide door 26 in the arrow direction A. That is, in the case 12a of the air conditioner unit 12, the face opening 2
2 and a horizontal guide groove 27 extending parallel to the door sliding direction A on the inner wall surface below the foot opening 23.
28 (FIGS. 2 and 4) are provided on both left and right sides, and guide pins 26j are slidably fitted in the guide grooves 27 and 28, respectively. For this reason, the slide door 26 is slidably held by the case 12a by a fitting portion between the guide pin 26j and the guide grooves 27 and 28.

Further, a linear gear (rack) 26k extending parallel to the sliding direction A of the door is provided integrally with the door substrate 26a on the lower surface of the door substrate 26a (the surface facing the heater core 18). This linear gear 26k is shown in FIG.
As shown in FIG. 7, the lower surface of the door substrate 26a is formed on the lower surface of the central plate surface 26d. On the other hand, FIG.
As shown in the figure, in the case 12a, just below the slide door 26, in the middle part between the face opening 22 and the foot opening 23, the rotating shaft 29 is in a direction orthogonal to the door sliding direction A. Are located in This rotating shaft 2
Reference numeral 9 denotes a resin, which is rotatably supported by a bearing hole (not shown) in the wall surface of the case 12a. A circular connecting gear (pinion) 30 is integrally formed of resin at an intermediate portion of the rotating shaft 29 corresponding to the linear gear 26k. The connecting gear 30 is located in the case 12a and meshes with the linear gear 26k.

One end of the rotating shaft 29 is connected to the case 12a.
Of the drive side gear 31
Has been arranged. The drive gear 31 is also formed integrally with the rotary shaft 29 by resin. As shown in FIG. 2, the servo motor 32 constituting the door driving device
, And a fan gear 34 is connected to the output shaft 33. The fan gear 34 is the same as the driving gear 3 described above.
Meshing with one. Thus, the rotation of the servomotor 32 is transmitted to the rotating shaft 29 via the output shaft 33, the fan gear 34, and the driving gear 31. Further, the rotation of the rotating shaft 29 is converted into a linear motion of the slide door 26 by the engagement between the connecting gear 30 and the linear gear 26k.

In this embodiment, the rotation shaft 21a of the cool air bypass door 21 for opening and closing the cool air bypass passage 20 is connected to the pin portion 34a of the fan gear 34 via links 35 and 36, and the rotation of the fan gear 34 The cold air bypass door 21 is rotated in conjunction with the position. Next, the operation in the above configuration will be described. By selecting the rotation direction and the rotation amount of the output shaft 33 of the servo motor 32, the sliding position of the slide door 26 in the direction of arrow A can be set arbitrarily. , The face opening 22 and the foot opening 23 are opened and closed, and the face, bi-level,
Each mode of the foot can be selected as desired.

At this time, according to the present embodiment, the following advantages are obtained in the switching operation of the air passage by the slide door 26. The sliding direction A of the sliding door 26 is provided in the openings 22 and 23.
Grids 22a and 23a extending in parallel to the opening and partitioning the opening surface are arranged, and the film members 2 are formed by the grids 22a and 23a.
The bulging deformation of the central portion of 6b can be restricted. Therefore, it is possible to prevent the film member 26b from entering the openings 22 and 23 with a large curve. As a result, it is possible to prevent a gap from being generated between the peripheral sealing surfaces 22b and 23b of the openings 22 and 23 and the film member 26b due to the large curvature of the film member 26b.

Therefore, the film member 26b is connected to the opening 2
6c, the pressure is reliably applied to the peripheral sealing surfaces 22b, 23b of the openings 22, 23 and the end faces of the lattices 22a, 23a, so that the openings 22, 23 are securely closed by the film member 26b, thereby preventing air leakage. It can be prevented well. Since the phenomenon that the film member 26b enters the openings 22 and 23 in a large curved state is eliminated, when the operation position of the slide door 26 is moved next, the slide door 26 is moved lightly with a small operation force. Can be.

Peripheral sealing surface 22 of openings 22 and 23
b, 23b and the end faces of the lattices 22a, 23a, the film member 26b is constantly pressed by the elastic reaction force of the elastic pressing member 26e.
The phenomenon of collision with a and 23a is eliminated. Similarly,
The film member 26b vibrates due to the vibration during traveling of the vehicle, and the peripheral sealing surfaces 22b and 23b and the lattices 22a and 23a
There is no phenomenon of collision. Therefore, it is possible to prevent hitting sound due to the collision of the film member 26b.

The film member 26b is connected to the elastic pressing member 26
If the assembly structure of pressing constantly by the elastic reaction force e is not adopted, the film member 26b is distorted into a wavy state as shown in FIG. May cause chattering and chatter. However, according to the present embodiment, the film member 26b is always pressed against the peripheral sealing surface 2 by the elastic reaction force of the elastic pressing member 26e.
Pressing against the end faces of the grids 2b and 23b and the lattices 22a and 23a can also prevent the above-described hitting sound and chattering sound.

(Second Embodiment) FIG. 8 shows a second embodiment. In the first embodiment, the elastic pressing member 26e and the door are located immediately below the lattices 22a and 23a (positions directly facing the lattice end faces). Although the plate surface 26d of the substrate 26a is arranged, in the second embodiment, the plate surface 26d of the elastic pressing member 26e and the door substrate 26a is slightly shifted to the side of the lattice instead of the position directly below the lattices 22a and 23a. It is located near.

As described above, even when the elastic pressing member 26e is disposed near the side of the lattice, the pressing force of the elastic pressing member 26e acts on the film member 26b to press the film member 26b against the lattices 22a and 23a. Thus, substantially the same operation and effect as in the first embodiment can be exhibited. (Third Embodiment) FIG. 9 shows a third embodiment, which shows another example of the specific material of the film member 26b, and a resin substrate layer 100 made of a PET (polyethylene terephthalate) film, Woven fabric layer 102 bonded to resin substrate layer 100 via resin-based adhesive layer 101
And a resin coat layer 103 impregnated on the surface of the woven fabric layer 102.

The woven fabric layer 102 is woven from nylon fibers or the like, and can effectively improve the strength of the film. The resin coating layer 103 has a peripheral sealing surface 22b on the case 12a side,
3b and a sliding surface that slides in contact with the end faces of the lattices 22a and 23a, and is made of silicon resin, acrylic resin, fluororesin, or the like having a low friction coefficient and heat resistance.

According to the third embodiment, the film member 26
b has a multilayer structure as described above,
Since the mechanical strength can be effectively improved by adopting, the rigidity of the film member 26b can be reduced (in other words, the flexibility can be improved) while maintaining the required strength.
As a result, the film member 26b and the peripheral sealing surface 22b,
The adhesiveness between the end faces of the lattices 23b and the lattices 22a, 23a is improved, and the effect of reducing hitting noise and chattering sound and the sealing effect can be further improved.

(Fourth Embodiment) FIG. 10 shows a fourth embodiment. In the first embodiment, the door substrate 26a of the slide door 26 is formed in a flat frame shape. Although the whole shape is flat,
In the embodiment, the door substrate 26a is formed in an arc shape having a relatively large radius of curvature, and the entire shape of the slide door 26 is formed in an arc shape. Accordingly, the opening surfaces of the openings 22 and 23 on the case 12a side are also formed in an arc shape (not shown).

In this case, substantially the same operation and effect as in the first embodiment can be achieved. The drive mechanism of the slide door 26 only changes the linear gear 26k into an arc shape following the arc shape of the door substrate 26a, and the other points are the first.
It may be the same as the embodiment. (Other Embodiments) A sliding door according to the present invention may be used as an inside / outside air switching door of a vehicle air conditioner or a heater core 1.
The present invention can also be applied to an air mix door or the like that adjusts the ratio of the amount of warm air passing through the air passage 8 and the amount of cool air passing through the cool air bypass passage of the heater core 18. Further, the present invention can be widely applied to an air passage switching device for an application other than the vehicle air conditioner.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a vehicle rear seat air conditioner to which a first embodiment of the present invention is applied.

FIG. 2 is an enlarged front view of a main part of FIG.

FIG. 3 is an exploded perspective view of the slide door drive mechanism shown in FIG.

FIG. 4 is an exploded perspective view of a main part of FIG. 2;

FIG. 5 is an enlarged perspective view of a single slide door of FIG. 4;

FIG. 6 is an exploded perspective view of a single slide door of FIG. 5;

7A is a sectional view showing an assembling relationship between the slide door and the case-side opening in FIG. 5, and FIG. 7B is a sectional view taken along the line AA in FIG.

FIG. 8 is a sectional view of a main part showing a second embodiment of the present invention.

FIG. 9 is a partial sectional view of a film member according to a third embodiment of the present invention.

FIG. 10 is an enlarged perspective view of a single slide door according to a fourth embodiment of the present invention.

FIG. 11 is a cross-sectional view showing an assembling relationship between a slide door and a case-side opening according to the related art.

FIG. 12 is a cross-sectional view showing a state where a lattice is added to the case-side opening of FIG. 11;

[Explanation of symbols]

22: face opening, 23: foot opening, 26: sliding door, 26a: door substrate, 26b: film member, 26e: elastic pressing member.

Claims (6)

[Claims] 1. An air passage switch comprising a slide door (26) sliding along an opening surface of an air passage (22, 23) and opening and closing the air passage (22, 23) by the slide door (26). A device for forming a grid (22a, 23a) in the air passages (22, 23) for partitioning an opening surface into a plurality of openings, and connecting the grid (22a, 23a) to the sliding door (2).
6) is arranged parallel to the sliding direction (A), and the peripheral sealing surfaces (22b, 22b,
23b) and a film member (26b) that closes the air passages (22, 23) by pressing against the end faces of the lattices (22a, 23a), and a door substrate (26a) that supports the film member (26b). , The sliding door (2
6), an opening (26c) for applying a wind pressure to the film member (26b) is provided in the door substrate (26a), and the film member (26b) is provided on the periphery of the air passages (22, 23). An air passage switching device, wherein a pressing means (26e) for pressing the sealing surfaces (22b, 23b) and the end surfaces of the grids (22a, 23a) is provided on the door substrate (26a). 2. The air passage switching device according to claim 1, wherein the pressing means (26e) is made of an elastic material that presses the film member (26b) with an elastic reaction force. 3. The pressing means (26e) has an elongated shape extending parallel to the sliding direction (A) of the slide door (26), and the pressing means (26e) having the elongated shape is connected to the air passage (2).
The air passage switching device according to claim 1 or 2, wherein a plurality of peripheral seal surfaces (22b, 23b) and a plurality of end surfaces of the lattices (22a, 23a) are arranged, respectively. 4. The plurality of pressing means (26e),
The film member (26b) is connected to the grid (22a, 23).
The air passage switching device according to claim 3, wherein a pressing means (26e) for pressing against the end face of (a) is disposed at a position directly facing the end face of the lattice (22a, 23a). 5. The plurality of pressing means (26e),
The film member (26b) is connected to the grid (22a, 23).
The air passage switching device according to claim 3, wherein the pressing means (26e) for pressing against the end face of (a) is arranged at a position near the side face shifted from the end face of the grid (22a, 23a). 6. The slide door (26), comprising the air passage switching device according to claim 1.
A plurality of air passages (22, 2
3) An air conditioner for a vehicle, which opens and closes 3).