WO2014203772A1

WO2014203772A1 - Door holding structure for vehicle air conditioner, and vehicle air conditioner with same

Info

Publication number: WO2014203772A1
Application number: PCT/JP2014/065409
Authority: WO
Inventors: 浩隆古城
Original assignee: 株式会社ヴァレオジャパン
Priority date: 2013-06-17
Filing date: 2014-06-11
Publication date: 2014-12-24
Also published as: JPWO2014203772A1; JP6261054B2

Abstract

[Problem] To provide a door holding device for a vehicle air conditioner, the door holding device being configured so that, when a first door and a second door are arranged so as to be rotatable on the same axis, the movement of the second door in the rotation axis direction is limited not by the contact of the second door with the first door but by restriction mechanisms configured from walls and the second door. [Solution] An air conditioner (1) is configured in such a manner that a mix door (20) which is provided with first supported sections (21a, 21b) and a mode door (30) which is provided with second supported sections (31a, 31b) are disposed between the case member (2a) and the case member (2b) of an air conditioner case (2), and in such a manner that the first supported sections (21a, 21b) and the second supported sections (31a, 31b) are rotatable on the same rotation axis. The range of movement of the mix door (20) is restricted by restriction mechanisms (50a, 50b), and the range of movement of the mode door (30) is restricted by a restriction mechanism (60a) which is configured from the mode door (30) and the case member (2a) and by a restriction mechanism (60b) which is configured from the mode door (30) and the case member (2b).

Description

Vehicle air conditioner door holding structure and vehicle air conditioner equipped with the same

The present invention relates to a vehicle air conditioner door holding structure employed for supporting two doors on the same axis, and a vehicle air conditioner equipped with the door holding structure. In particular, a door movement restricting mechanism that can prevent the other door from being affected by the rotation of one of the two doors and can set a small gap between one of the two doors and the wall. Concerning structure.

In a vehicle air conditioner, a door holding structure as already disclosed in Patent Document 1 is already known as a structure that rotatably supports two doors on the same axis.

An outline of the door holding structure of the vehicle air conditioner is as follows. The first door and the second door, which are two doors, are respectively connected to the closed portion (door plate portion) and the both ends of the closed portion (door plate portion). It comprises a pair of protruding rotating shaft portions. Furthermore, a slit part is provided in the rotating shaft part of the first door, and a reduced width part in which the radial width is partially shortened is provided in the rotating shaft part of the second door. Then, the reduced width portion of the rotation shaft portion of the second door is inserted into the slit portion from the radially outer side of the rotation shaft portion of the first door, and after temporarily assembling the first door and the second door, By inserting a 1st rotating shaft part in a bearing part, a 1st door and a 2nd door are rotatably arrange | positioned between the walls of the case of a vehicle air conditioner.

Furthermore, the first door and the second door are so-called rotary doors. And the side wall part extended in the radial direction of a rotating shaft part and connected with the both ends of a closure part (door board part) in the both ends of each closure part (door board part) of a 1st door and a 2nd door (Side plate part). Furthermore, the inner side surface of the side wall portion (side plate portion) of the first door and the outer side surface of the side wall portion (side plate portion) of the second door face each other.

JP 2011-207307 A

Here, the structure of the 1st door of patent document 1 is between the wall of a case, and a pair of side wall part (side plate part) of a 1st door so that a 1st door can move to the axial direction of a rotating shaft part. A first movement range is provided between the first door and the first door, and the first door is held by the case, thereby preventing a problem that the rotation operation is hindered. Similarly, the configuration of the second door includes a pair of side wall portions (side plate portions) of the first door and a pair of side wall portions (side plates) of the second door so that the second door can move in the axial direction of the rotating shaft portion. The second movement range is provided between the first door and the second door, and the second door is sandwiched by the first door to prevent the rotation operation from being hindered.

That is, the second door has a movement range in which the second movement range provided for the second door is added to the first movement range provided for the first door to the case wall. It is installed in a form. A large gap is generated between the wall of the case and the pair of side wall portions (side plate portions) of the second door. When the air conditioning control is performed with the second door, the large gap becomes a passage for the leaked air, and the amount of air leakage increases, which causes a problem that the efficiency of the air conditioning control deteriorates.

Moreover, in the structure of the 1st door and 2nd door of patent document 1, in the axial direction of a rotating shaft part, the contact with a 1st door and a 2nd door cannot be prevented, but it receives to the influence of mutual rotation operation | movement. Therefore, the first door and the second door whose rotational positions are to be controlled are brought into contact with each other, the rotational torque is increased, and the rotational control may be deteriorated.

Therefore, the present invention provides a configuration in which the first door and the second door are arranged so as to be rotatable coaxially, and there is no large gap between the wall of the case and the side wall of the second door, and It is an object of the present invention to provide a vehicle air conditioner door holding structure and a vehicle air conditioner that do not restrict the movement of the two doors in the rotation axis direction by contact with the first door.

The door holding structure for a vehicle air conditioner according to the present invention includes a first door including a pair of first supported portions and a second door including a pair of second supported portions. A door holding structure for a vehicle air conditioner in which the first door and the second door are arranged between a first wall and a second wall, wherein one of the first supported parts is The second supported portion is rotatably supported by the first wall, and the second supported portion is rotatably supported by the first supported portion, and the other of the first supported portion and the first supported portion. The other of the two supported parts is rotatably supported by the second wall, or is rotatably supported by the supported part supported by the second wall, and the first supported part. And the second supported portion are rotatable on the same rotation axis, and the movement of the first door in the direction along the rotation axis is the first In a door holding structure in which a door is regulated by abutting against the first wall and abutting against the second wall, the first regulating mechanism is constituted by the second door and the first wall. The second door and the second wall constitute a second restriction mechanism, and the movement of the second door in the direction along the rotation axis is the first restriction mechanism and the second wall It is characterized by being regulated by a regulation mechanism (claim 1). Here, the first door is, for example, a mix door, and the second door is, for example, a mode door.

Thereby, the movement of the second door in the direction along the rotation axis is regulated by the first wall and the second wall via the first and second regulating mechanisms, and therefore in the direction along the rotation axis. There is no need to regulate using the movable first door, and the movement range of the second door can be reduced. For this reason, since the clearance gap between the 1st wall and the 2nd door and the clearance gap between the 2nd wall and the 2nd door can be set small, the amount of leakage of the air which passes through these clearance gaps can be controlled. It becomes possible. In addition, the movement of the first door and the second door in the direction along the rotation axis is restricted by the first wall and the second wall, respectively, so that the first door and the second door are in the direction along the rotation axis. There is no contact. For this reason, both the first door and the second door can be prevented from being affected by the rotation of the counterpart door, and the independence of the door position control can be improved.

As a first example of the present invention, the movement of the second door in the direction along the rotation axis includes a one-side door extension portion that extends from the second door and can abut on the first wall. A first restricting mechanism constituted by the first wall, the other side door extending portion that extends from the second door and can come into contact with the second wall, and the second wall It is characterized by being restricted by at least one of the 2nd regulation mechanism comprised by these (Claim 2).

As a result, in the restriction mechanism using the door extension portion, the restriction mechanism itself rotates and moves according to the rotation of the second door, so that the restriction of the movement range of the second door in the direction along the rotation axis is stabilized. Can be done.

The other of the second supported parts is supported by the second wall, and the movement of the second door in the direction along the rotation axis is at least the other side door extension part and the second part. The second door extending portion is restricted by the second restricting mechanism configured with a wall, and the other side door extending portion extends in a direction substantially perpendicular to the rotation axis from the other of the second supported portions. (Claim 3).

Since the extension part of the second door is provided so as to extend from the other of the second supported parts supported by the second wall, the extension part of the second door is set to the center of rotation of the second door. Can be placed near. For this reason, even when the movement in the direction along the rotation axis of the second door is restricted by the second restriction mechanism, the influence of the rotational torque on the rotation direction of the second door can be suppressed.

As a second example of the present invention, the movement of the second door in the direction along the rotation axis is capable of extending from the second door and the first wall and coming into contact with the second door. A first restricting mechanism configured with a side wall extending portion, the second door, and a second side wall extending portion that extends from the second wall and can come into contact with the second door. It is characterized by being regulated by at least one of the second regulation mechanism (claim 4).

In the regulation mechanism provided with the wall extending portion, it is not necessary to provide the extending portion on the second door, so that the productivity of the second door can be improved.

As a third example of the present invention, the movement of the second door in the direction along the rotation axis is the second door and the second wall of the first wall that is more than the surface facing the first door. The first regulating mechanism configured with a step surface on one side close to the wall of the first door, the second door, and the second wall of the second wall that is closer to the first wall than the surface facing the first door. It is characterized by being restricted by at least one of a second restricting mechanism constituted by the adjacent other side step surface (Claim 5).

In the regulation mechanism using the stepped surface, it is not necessary to provide an extension part on the second door, so the productivity of the second door can be improved. Further, since the wall and the second door are close to each other and the gap is narrowed, it is possible to suppress the amount of air leaking through these gaps, and to improve the accuracy of air conditioning control.

As Example 1 of the door holding structure of the vehicle air conditioner according to the present invention, one of the paired first supported portions is rotatable in a first bearing hole formed in the first wall. The other supported second pair of supported parts is rotatably supported by a second bearing hole formed in the second wall, and the other of the first supported parts is Supported by a door support portion formed on the second wall, is rotatable about an axis of the second bearing hole, and includes a slit portion through which the other of the second supported portions can be inserted, One of the second supported parts is rotatably supported on one inner diameter side or outer diameter side of the first supported part (Claim 6).

In supporting the first door having the first supported portion forming a pair and the second door having the second supported portion forming the pair on the same rotation axis, the second door The other is rotatably supported by a second bearing hole formed in the second wall, and the other of the first supported parts is supported by a door support part formed in the second wall. Yes. For this reason, the supported parts of the respective doors are supported at different positions with respect to the second wall, and even when one of the doors has a dimensional variation or a slight deflection, the respective doors rotate and slide. It is possible to stabilize the quality by ensuring smooth door rotation.

As Example 2 of the door holding structure of the vehicle air conditioner according to the present invention, one of the first supported parts is rotatably supported by a first bearing hole formed in the first wall, The other of the second supported portions is rotatably supported by a second bearing hole formed in the second wall, and one of the second supported portions is the first supported portion. Is supported along a perpendicular line from the first bearing hole, is rotatable about the axis of the first bearing hole, and the other of the first supported parts is the second supported part. The second support hole is supported along the perpendicular from the second bearing hole, and is rotatable about the axis of the second bearing hole (Claim 7).

In supporting the first door having the first supported portion forming a pair and the second door having the second supported portion forming the pair on one axis, one of the second supported portions is supported. One of the first supported portions is rotatably supported along a perpendicular line from the first bearing hole, and the other of the first supported portions is supported on the other of the second supported portions. It supports so that it can rotate along the perpendicular from. For this reason, when temporarily assembling the first door and the second door, it is not necessary to insert another supported portion from the outside in the radial direction of the supported portion, and force is applied to each supported portion from the radial direction. Disappears. Therefore, it is possible to prevent the supported portion from being bent in the radial direction, and the smooth rotation of the door is not hindered.

As Example 3 of the door holding structure of the vehicle air conditioner according to the present invention, one of the first supported portions is rotatably supported by a first bearing hole formed in the first wall, The other of the first supported parts is rotatably supported by a second bearing hole formed in the second wall, and one of the second supported parts is the first supported part. Is supported on one inner diameter side or outer diameter side of the first bearing hole and is rotatable about the axis of the first bearing hole. The other of the second supported parts is the other of the first supported parts. Is supported on the inner diameter side or outer diameter side of the second bearing hole, and is rotatable about the axis of the second bearing hole (claim 8). Here, one of the second supported parts may or may not penetrate the first bearing hole formed in the first wall, and the other of the second supported parts may be Even if it penetrates the 2nd bearing hole formed in the 2nd wall, it is good also as what does not penetrate.

As described above, in the door holding structure, one of the second supported portions is supported on one inner diameter side or outer diameter side of the first supported portion, and rotates about the axis of the first bearing hole. The other of the second supported parts is supported on the other inner diameter side or outer diameter side of the first supported part and is rotatable about the axis of the second bearing hole. Even when it is adopted, the movement range of the second door can be restricted by contacting the first wall and the second wall via the first and second restriction mechanisms. Moreover, it can prevent that a 1st door and a 2nd door contact in the direction in alignment with the rotating shaft line of a to-be-supported part by a 1st control mechanism and a 2nd control mechanism.

Here, in the door holding structure for a vehicle air conditioner according to the present invention, the first door and the second door include a pair of side wall portions extending substantially perpendicular to the respective supported portions, A rotary door configured to include a closing portion that connects between the pair of side wall portions may be used (claim 9). Further, the first door and the second door may be a plate door provided with a plate-like portion extending substantially parallel to the axis of each supported portion (claim 10).

In the vehicle air conditioner in which the door holding structure is used, the first wall and the second wall are part of an air conditioning case in which an air flow path is formed, and the first door And the second door are arranged in the air flow path (claim 11).

By adopting such a configuration for the first wall, the second wall, the first door, and the second door, the door holding structure according to any one of claims 1 to 8 is employed in the vehicle air conditioner. Is possible.

As described above, according to the first to eleventh aspects of the present invention, the movement of the second door in the direction along the rotation axis is caused by the first wall via the first and second restriction mechanisms. And can be regulated by the second wall. For this reason, it is not necessary to regulate using the 1st door which can move to the direction which follows a rotation axis, and the movement range of the 2nd door can be made small. Therefore, since the gap between the second door and the first wall and the gap between the second door and the second wall can be set small, it is possible to suppress the amount of air leaking through these gaps. It becomes.

Moreover, according to invention of Claim 1-11, the movement of the direction along the rotating shaft line of a 1st door and a 2nd door can be controlled with a 1st wall and a 2nd wall, respectively. . For this reason, the first door and the second door do not come into contact with each other in the direction along the rotation axis, and can be prevented from being affected by the rotation of the counterpart door, thereby improving the independence of the door position control. It becomes possible to make it.

In particular, according to the second aspect of the invention, since the regulating mechanism uses the door extension portion, the regulating mechanism itself rotates and moves in accordance with the rotation of the second door. The movement range of the second door can be regulated stably.

Particularly, according to the invention described in claim 3, the extending portion of the second door is provided so as to extend from the other of the second supported portions supported by the second wall. For this reason, the extension part of the 2nd door can be arranged near the rotation center of the 2nd door, and the movement of the direction along the axis of rotation of the 2nd door was regulated by the 2nd regulation mechanism. Sometimes, the influence of the rotational torque on the rotational direction of the second door can be suppressed.

In particular, according to the invention described in claim 4, since the restriction mechanism has a configuration in which the wall extending portion is provided, it is not necessary to provide the extending portion on the second door, so that the productivity of the second door is improved. be able to.

In particular, according to the invention described in claim 5, since it is not necessary to provide the extension portion on the second door in the regulation mechanism using the step surface, the productivity of the second door can be improved. Further, since the wall and the second door are close to each other and the gap is narrowed, it is possible to suppress the amount of air leaking through these gaps, and to improve the accuracy of air conditioning control.

In particular, according to the sixth aspect of the present invention, the first door having the first supported portion that makes a pair and the second door having the second supported portion that makes the pair are arranged on the same rotational axis. In supporting, the other of the second supported portions is rotatably supported in a second bearing hole formed in the second wall, and the other of the first supported portions is supported on the second wall. The door is supported by the formed door support. For this reason, the supported parts of the respective doors are supported at different locations with respect to the second wall, and even if one of the doors has a dimensional variation or slight deflection, the respective doors rotate and slide. It is possible to stabilize the quality by ensuring smooth door rotation.

In particular, according to the seventh aspect of the present invention, the first door having the first supported portion that makes a pair and the second door having the second supported portion that makes the pair are coaxially supported. In doing so, one of the second supported parts is supported by one of the first supported parts so as to be rotatable along a perpendicular line from the first bearing hole, and the other of the first supported parts is secondly supported. The other supported portion is supported so as to be rotatable along a perpendicular line from the second bearing hole. For this reason, when temporarily assembling the first door and the second door, it is not necessary to insert another supported portion from the outside in the radial direction of the supported portion, and force is applied to each supported portion from the radial direction. Disappears. Therefore, it is possible to prevent the supported portion from being bent in the radial direction, and the smooth rotation of the door is not hindered.

In particular, as in the invention according to claim 8, in the door holding structure, one of the second supported parts is supported on one inner diameter side or outer diameter side of the first supported part, It is rotatable about the axis of the bearing hole, and the other of the second supported parts is supported on the other inner diameter side or outer diameter side of the first supported part, and the axis of the second bearing hole is Even when the structure is rotatable as a center, the movement range of the second door is regulated by contacting the first wall and the second wall via the first and second regulating mechanisms. can do. Moreover, it can prevent that a 1st door and a 2nd door contact in the direction in alignment with the rotating shaft line of a to-be-supported part by a 1st control mechanism and a 2nd control mechanism.

In particular, according to the invention described in claim 11, the vehicle air conditioner is configured as described above from claim 1 to claim 1 by adopting such a configuration for the first wall, the second wall, the first door, and the second door. It becomes possible to employ | adopt the door holding structure of claim | item 8.

FIG. 1 is a cross-sectional view showing an overall configuration example of a vehicle air conditioner in which a door holding structure according to the present invention is used. FIG. 2 is a cross-sectional view showing a schematic configuration of the first example of the first embodiment of the door holding structure according to the present invention. The second door has one side door extension portion on one side wall portion. It is explanatory drawing which shows that the other side door extension part is provided in the other of the support parts, and the one side door extension part and the 1st wall are contacting. FIG. 3 is a cross-sectional view showing a schematic configuration of the first example of the first embodiment of the door holding structure according to the present invention. The second door has one side door extension portion on one side of the side wall portion. It is explanatory drawing which shows that the other side door extension part is provided in the other of the support parts, and the other side door extension part and the 2nd wall are contact | abutting. FIG. 4 is an explanatory view showing a first example of the first embodiment, and FIG. 4A is a perspective view showing a state before the first door and the second door are assembled, and FIG. ) Is a perspective view showing a state where the first door and the second door are temporarily assembled. FIG. 5 is a cross-sectional view showing a schematic configuration of a second example of the first embodiment of the door holding structure according to the present invention, and the second door has one side door extension portion on one side wall portion and the side wall portion. It is explanatory drawing which shows that the other side door extension part is provided in the other of the part, and the one side door extension part and the 1st wall are contacting. FIG. 6 is a cross-sectional view showing a schematic configuration of a second example of the first embodiment of the door holding structure according to the present invention. The second door has one side wall extending portion on one side wall portion, It is explanatory drawing which shows that the other side door extension part is provided in the other of the part, and the other side door extension part and the 2nd wall are contact | abutting. FIG. 7 is an explanatory view showing a second example of the first embodiment, and FIG. 7A is a perspective view showing a state before the first door and the second door are assembled, and FIG. ) Is a perspective view showing a state where the first door and the second door are temporarily assembled. FIG. 8 is a cross-sectional view showing a schematic configuration of the third example of the first embodiment of the door holding structure according to the present invention, in which the first wall has one side wall extending portion on the surface facing the second door. The second wall is an explanatory view showing that the other side wall extending portion is provided on the surface facing the second door, and that the one side wall extending portion and the second door are in contact with each other. FIG. 9 is a cross-sectional view showing a schematic configuration of the third example of the first embodiment of the door holding structure according to the present invention, in which the first wall has a side wall extending portion on the surface facing the second door. The second wall is an explanatory view showing that the other side wall extension is provided on the surface facing the second door, and the other side wall extension and the second door are in contact with each other. FIG. 10A is a perspective view showing one of the supported parts of the first door and the second door in the third example of the first embodiment, and FIG. It is a perspective view which shows the other of each supported part of a 1st door and a 2nd door in the 3rd example of Example 1. FIG. FIG. 11 is a cross-sectional view showing a schematic configuration of a fourth example of the first embodiment of the door holding structure according to the present invention, in which one side step is formed on the first wall facing one of the side walls of the second door. It is explanatory drawing which shows that the other side level | step difference surface is provided in the 2nd wall facing the other side wall part of a 2nd door, and the one side level | step difference surface and the 2nd door contact | abut. FIG. 12 is a cross-sectional view showing a schematic configuration of a fourth example of the first embodiment of the door holding structure according to the present invention, in which one side step is formed on the first wall facing one of the side walls of the second door. It is explanatory drawing which shows that the other side level | step difference surface is provided in the 2nd wall facing the other side wall part of a 2nd door, and the other side level | step difference surface and the 2nd door contact | abutted. FIG. 13 is a cross-sectional view showing a schematic configuration of the first example of the second embodiment of the door holding structure according to the present invention. In the second door, one side door extension portion is provided on one side wall portion. It is explanatory drawing which shows that the other side door extension part is provided in the other of the support parts, and the one side door extension part and the 1st wall are contacting. FIG. 14 is a cross-sectional view showing a schematic configuration of the first example of the second embodiment of the door holding structure according to the present invention. In the second door, one side door extension portion is provided on one side wall portion. It is explanatory drawing which shows that the other side door extension part is provided in the other of the support parts, and the other side door extension part and the 2nd wall are contact | abutting. FIG. 15 is an explanatory view showing a first example of the second embodiment, and is a perspective view showing a state before the first door and the second door are assembled. FIG. 16: is sectional drawing which shows schematic structure of the 2nd example of Example 2 of the door holding structure which concerns on this invention, and the 2nd door has one side door extension part in one side wall part, and a side wall. It is explanatory drawing which shows that the other side door extension part is provided in the other of the part, and the one side door extension part and the 1st wall are contacting. FIG. 17: is sectional drawing which shows schematic structure of the 2nd example of Example 2 of the door holding structure which concerns on this invention, and the 2nd door has one side door extension part in one side wall part, and a side wall. It is explanatory drawing which shows that the other side door extension part is provided in the other of the part, and the other side door extension part and the 2nd wall are contact | abutting. FIG. 18 is an explanatory view showing a second example of the second embodiment, and is a perspective view showing a state before the first door and the second door are assembled. FIG. 19 is a cross-sectional view showing a schematic configuration of a third example of the second embodiment of the door holding structure according to the present invention, in which the first wall has a side wall extending portion on the surface facing the second door. The second wall is an explanatory view showing that the other side wall extending portion is provided on the surface facing the second door, and that the one side wall extending portion and the second door are in contact with each other. FIG. 20 is a cross-sectional view showing a schematic configuration of a third example of the second embodiment of the door holding structure according to the invention, and the first wall has a side wall extending portion on a surface facing the second door, It is explanatory drawing which shows that the other side wall extension part is each provided in the surface facing a 2nd door, and the other side wall extension part and the 2nd door contact | abut the 2nd wall. FIG. 21A is a perspective view showing one of the supported portions of the first door and the second door in the third example of the second embodiment, and FIG. It is a perspective view which shows the other of each supported part of a 1st door and a 2nd door in the 3rd example of Example 2. FIG. FIG. 22 is a cross-sectional view showing a schematic configuration of a fourth example of the second embodiment of the door holding structure according to the present invention, in which one side step is formed on the first wall facing one of the side walls of the second door It is explanatory drawing which shows that the other side level | step difference surface is provided in the 2nd wall facing the other side wall part of a 2nd door, and the one side level | step difference surface and the 2nd door contact | abut. FIG. 23 is a cross-sectional view showing a schematic configuration of a fourth example of the second embodiment of the door holding structure according to the present invention, in which one side step is formed on the first wall facing one of the side walls of the second door. It is explanatory drawing which shows that the other side level | step difference surface is provided in the 2nd wall facing the other side wall part of a 2nd door, and the other side level | step difference surface and the 2nd door contact | abutted. FIG. 24 is a cross-sectional view showing a schematic configuration of the first example of the third embodiment of the door holding structure according to the present invention, and the second door has one side door extension portion on one of the supported portions, It is explanatory drawing which shows that the other side door extension part is provided in the other of the supported parts, and the one side door extension part and the 1st wall are contacting. FIG. 25 is a cross-sectional view showing a schematic configuration of the first example of the third embodiment of the door holding structure according to the present invention, and the second door has one side door extension portion on one of the supported portions, It is explanatory drawing which shows that the other side door extension part is provided in the other of the supported parts, and the other side door extension part and the 2nd wall are contact | abutting. FIG. 26 is an explanatory view showing a first example of the third embodiment. FIG. 26A is a perspective view showing a state before the first door and the second door are assembled, and FIG. ) Is a perspective view showing a state where the first door and the second door are temporarily assembled. FIG. 27 is a cross-sectional view showing a schematic configuration of a second example of the third embodiment of the door holding structure according to the present invention, and the second door has one side extending portion on one side wall portion and the side wall portion. It is explanatory drawing which shows that the other side extension part is provided in the other, and the one side extension part and the 1st wall are contacting. FIG. 28 is a cross-sectional view showing a schematic configuration of a second example of the third embodiment of the door holding structure according to the present invention, and the second door has one side wall extension portion on one side wall portion and the side wall portion. It is explanatory drawing which shows that the other side door extension part is provided in the other of the part, and the other side door extension part and the 2nd wall are contact | abutting. FIG. 29 is an explanatory view showing a second example of the third embodiment, and FIG. 29 (a) is a perspective view showing a state before the first door and the second door are assembled, and FIG. 29 (b). ) Is a perspective view showing a state where the first door and the second door are temporarily assembled. FIG. 30 is a cross-sectional view illustrating a schematic configuration of a third example of the third embodiment of the door holding structure according to the present invention, in which the first wall has a side wall extending portion on a surface facing the second door. The second wall is an explanatory view showing that the other side wall extending portion is provided on the surface facing the second door, and that the one side wall extending portion and the second door are in contact with each other. FIG. 31 is a cross-sectional view showing a schematic configuration of a third example of the third embodiment of the door holding structure according to the present invention, wherein the first wall has a side wall extending portion on a surface facing the second door. The second wall is an explanatory view showing that the other side wall extension is provided on the surface facing the second door, and the other side wall extension and the second door are in contact with each other. FIG. 32 is a cross-sectional view showing a schematic configuration of a fourth example of the third embodiment of the door holding structure according to the present invention, in which one side step is formed on the first wall facing one of the side walls of the second door. It is explanatory drawing which shows that the other side level | step difference surface is provided in the 2nd wall facing the other side wall part of a 2nd door, and the one side level | step difference surface and the 2nd door contact | abut. FIG. 33 is a cross-sectional view showing a schematic configuration of a fourth example of the third embodiment of the door holding structure according to the present invention, in which one side step is formed on the first wall facing one of the side walls of the second door. It is explanatory drawing which shows that the other side level | step difference surface is provided in the 2nd wall facing the other side wall part of a 2nd door, and the other side level | step difference surface and the 2nd door contact | abutted.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows an example of an air conditioning unit 1 of a vehicle air conditioner in which the door holding structure according to the present invention is used. The air conditioning unit 1 is a center-mounted type mounted on a center console portion of a vehicle, and is disposed closer to the vehicle compartment than a partition plate that partitions the engine room and the vehicle compartment. The air conditioning unit 1 is configured so that outside air (air outside the cabin) and / or inside air (air inside the cabin) is introduced into the air introduction space 3 of the air conditioning case 2 via a blower unit (not shown). It has become.

The air-conditioning case 2 forms a passage for air flowing toward the passenger compartment, and is formed of a synthetic resin material. For reasons of assembling the air-conditioning equipment in the case, and for convenience of die-cutting, a plurality of It is comprised by the case member. In this example, the air conditioning case 2 is configured by a case member that is divided in the vehicle left-right direction.

The air conditioning case 2 includes an introduction port 4 that introduces air into the air introduction space 3, a first outlet passage 5 that guides air upward of the air conditioning case 2, and a second outlet passage that guides air downward of the air conditioning case 2. 6 is provided.

In the air conditioning case 2, an evaporator 7 serving as a cooling heat exchanger is disposed in the air introduction space, and a heater core 8 serving as a heating heat exchanger is disposed downstream of the evaporator 7.

The evaporator 7 constitutes a part of the refrigeration cycle, and is disposed in the air passage so that all the air introduced from the inlet 4 passes, and the passing air is cooled and dehumidified as necessary. can do.

Downstream of the evaporator 7, a partition wall 9 formed integrally with the air conditioning case 2 is disposed in the approximate center of the air passage.

The heater core 8 heats air using, for example, engine cooling water as a heat source, and is disposed below the partition wall 9. In this embodiment, the heater core 8 is installed substantially horizontally from the lower end of the partition wall 9 to the guide wall 16 provided on the passenger compartment side of the air conditioning case 2.

Thereby, between the evaporator 7 and the partition wall 9 in the downstream side of the evaporator 7, the air that has passed through only the evaporator 7 (cold air that has been bypassed without passing through the heater core 8) is inclined toward the vehicle interior side. A bypass passage 10 (in this embodiment, a cold air passage) leading upward is formed. Further, between the partition wall 9 and the guide wall 16 on the downstream side of the evaporator 7, the air that has passed through the evaporator 7 and the heater core 8 (warm air that has passed through the heater core 8) is guided upward toward the passenger compartment. A hot air passage 11 is formed.

Above the partition wall 9, a mixed space 12 for mixing the cold air supplied from the bypass passage 10 and the hot air supplied from the hot air passage 11 is formed. In the mix space 12, the first blowing passage 5 and the first air passage Two blowout passages 6 are connected.

The first blowing passage 5 guides the air introduced by the blower unit to the upper side of the air conditioning case 2, and includes a mix space 12, a defrost blowing opening 13 for blowing the introduced air toward the glass inner surface in front of the vehicle, The introduced air communicates with a vent outlet 14 for blowing out the air toward the upper body of the occupant.

The second blowing passage 6 guides the air introduced by the blower unit to the lower side of the air conditioning case 2 and communicates with the mix space 12 and the foot blowing opening 15 that blows the introduced air toward the feet of the occupant. ing.

In this embodiment, the bypass passage 10, the hot air passage 11, the first blowout passage 5, and the second blowout passage 6 are centered on the mix space 12 and around the bypass passage 10, the first blowout passage 5, and the second blowout passage. The passage 6 and the warm air passage 11 are arranged in this order, and are connected to the mix space 12.

The portion where the bypass passage 10 and the first outlet passage 5 are connected to the mix space 12 is separated by a circumferential wall 17 in which a part of the air conditioning case 2 is formed in a circumferential shape. A portion where the first blowing passage 5 and the second blowing passage 6 are connected to the mix space 12 is separated by a circumferential wall 18 that forms a part of the air conditioning case 2 in a circular shape. A portion where the second blow-out passage 6 and the hot air passage 11 are connected to the mix space 12 is separated by a circumferential wall 19 in which a part of the air conditioning case 2 is formed in a circumferential shape. A portion where the warm air passage 11 and the bypass passage 10 are connected to the mix space 12 is separated by the partition wall 9 formed integrally with the air conditioning case 2.

In the mix space 12, a mix door 20 that adjusts the introduction ratio of the cold air supplied from the bypass passage 10 and the hot air supplied from the hot air passage 11, and the air from the mix space 12 toward the first outlet passage 5, A mode door 30 that adjusts the air distribution ratio with the air toward the second blow-out passage 6 is provided.

The mix door 20 is made of a synthetic resin material. The mix door 20 includes a pair of first supported portions 21a provided on the rotation axis, as shown in FIGS. 1, 4, 7, 15, 18, 18, 26, or 29. 21b and a pair of

side wall portions

22a and 22b extending from the first supported

portions

21a and 21b along the radial direction of the first supported

portions

21a and 21b and forming a pair of substantially fan shapes parallel to each other. And between the

side wall portions

22a and 22b in the vicinity of the closed portion 23 formed so as to connect the outer peripheral edges of the pair of

side wall portions

22a and 22b and the first supported

portions

21a and 21b. And ribs 24.

The first supported

portions

21a and 21b are rotatably arranged at the approximate center of the mix space 12 (only the first supported portion 21a on one side is shown in FIG. 1), and the closing portion 23 is formed. The opening ratio of the bypass passage 10 and the hot air passage 11 with respect to the mix space 12 can be adjusted by being positioned upstream of the first supported

portions

21a and 21b.

The mode door 30 is also made of a synthetic resin material. The mode door 30 includes a pair of second supported portions 31a provided on the rotation axis, as shown in FIG. 1, FIG. 4, FIG. 7, FIG. 15, FIG. 31b and

side wall portions

32a, 32b extending from the second supported

portions

31a, 31b along the radial direction of the second supported

portions

31a, 31b to form a pair of substantially fan-shaped parallel portions. And between the

side wall portions

32a and 32b in the vicinity of the closed portion 33 formed so as to connect the outer peripheral edges of the pair of

side wall portions

32a and 32b and the first supported

portions

31a and 31b. Rib 34.

The second supported

portions

31a and 31b are rotatably arranged on the same rotational axis as the mix door 20, and the closing portion 33 is positioned downstream of the second supported

portions

31a and 31b. The opening ratio with respect to the mix space 12 of the 1st blowing path 5 and the 2nd blowing path 6 can be adjusted now.

Further, the first blow-out passage 5 is provided with a cantilever type differential vent door 40 that adjusts the air distribution ratio between the air from the mix space 12 toward the defrost blow opening 13 and the air from the mix space 12 toward the vent blow opening 14. ing. By positioning the differential vent door 40 in cooperation with the mode door 30, the air introduced into the air conditioning case 2 via the blower unit is transferred to the defrost outlet opening 13, the vent outlet opening 14, and the foot outlet opening 15 at an appropriate ratio. Can be distributed.

By the way, in the vehicle air conditioner described above, as a door holding structure for holding the first supported

portions

21a and 21b of the mix door 20 and the second supported

portions

31a and 31b of the mode door 30 on the same axis, There are structures described as Example 1, Example 2, and Example 3. Further, when adopting the door holding structure in each embodiment, as a restriction mechanism for restricting the movement range of the mix door 20 and the mode door 30 as the first example, the second example, the third example, and the fourth example There is a structure to show. Hereinafter, while describing each of the first to third embodiments, each regulation mechanism will be described in the description of the embodiment.

2 to 12 show a first embodiment of a door holding structure.

As shown in FIGS. 4, 7, and 10, the first supported portion 21 a (one of the first supported portions) of the mix door 20 extends from the side wall portion 22 a on the rotation axis to the outside of the air conditioning case 2. It is formed by extending in a cylindrical shape toward. One of the first supported portions 21a rotates in a bearing hole 41 formed in the case member 2a of the case members 2a (first wall) and 2b (second wall) facing the air conditioning case 2. It is supported freely and has a cylindrical hole 25. Further, the first supported portion 21b (the other of the first supported portions) of the mix door 20 is a circle formed at the end of the side wall portion 22b as shown in FIGS. The plate-shaped portion 28 a and a peripheral wall portion 28 b extending from the peripheral edge of the disk-shaped portion 28 a toward the outside of the air conditioning case 2 along the rotation axis are configured. The other 21b of the first supported portion has a peripheral wall portion 28b from the side opposite to the closing portion 23 (upper side in FIG. 4) toward the closing portion 23 side (lower side in FIG. 4). A slit 28c is formed by cutting out the disk-shaped part 28a and having its tip extending to the center in the radial direction of the disk-shaped part 28a.

As shown in FIGS. 4, 7, and 10, the second supported portion 31 a (one of the second supported portions) of the mode door 30 is located outside the air conditioning case 2 on the rotation axis from the side wall portion 32 a. It is formed by extending in the shape of a column toward One of the second supported portions 31 a is rotatably supported by one of the first supported portions 21 a of the mix door 20. The second supported portion 31b (the other of the second supported portions) of the mode door 30 is located outside the air conditioning case 2 on the rotation axis from the side wall portion 32b, as shown in FIGS. It is formed by extending in a cylindrical shape toward. The other 31b of the second supported portion is rotatably supported by a bearing hole 42 formed in the case member 2b of the facing

case members

2a and 2b of the air conditioning case 2.

As shown in FIG. 10B, the case member 2b may be formed with a first door support portion 43 that holds the other 21b of the first supported portion. The first door support portion 43 extends in an annular shape around the second bearing hole 42 toward the inside of the air conditioning case 2 while covering the periphery thereof. The outer diameter of the first door support 43 is slightly smaller than the inner diameter of the peripheral wall 28b of the other 21b of the first supported part, and the other 21b of the first supported part is supported by the first door. The part 43 can be externally rotated.

Further, the end portion of one end 31a of the second supported portion is formed so that the outer diameter is slightly smaller than the inner diameter size of the cylindrical hole 25 formed in the first supported portion one 21a. The end portion of one of the two supported portions 31a can be rotatably inserted into the cylindrical hole 25 of the first supported portion 21a.

To assemble the mix door 20 and the mode door 30 having such a configuration, as shown in FIGS. 4A and 7A, the first supported

portions

21a and 21b and the second supported The mix door 20 and the mode door 30 are made to face each other with the

portions

31a and 31b close to each other, and from this state, the mode door 30 is first tilted so that one of the second supported portions 31a is connected to the first supported portion. One side 21a is inserted into the cylindrical hole 25, and thereafter, the other 31b of the second supported part is radially outward from the other 21b of the first supported part (in FIGS. 4A and 7A). 4 (b), by inserting the slit portion 28c close to the upper portion from the upper side and substantially matching the axial centers of the first supported

portions

21a and 21b and the second supported

portions

31a and 31b. As shown in FIG. 7B, the mix door 20 and the mode door 3 The door to assembly provisional.

After that, as shown in FIG. 10, the mix door 20 and the mode door 30 are brought closer to the

case member

2a, 2b in the state divided into the left and right from the rotational axis direction, and the first supported portion 21a is placed in the case. The case member is inserted into the bearing hole 41 of the member 2a, and the other 31b of the second supported portion is inserted through the slit portion 28c of the other 21b of the first supported portion (through the slit portion 28c). 2b is inserted into the bearing hole 42, the other 21b of the first supported portion is externally mounted on the first door support portion 43 of the case member 2b, and the

case members

2a and 2b are combined to constitute the air conditioning case 2. In FIG. 10, the mix door 20 and the mode door 30 are shown separately for the sake of clarity, but the above operation is performed in a temporarily assembled state.

Thus, the mix door 20 and the mode door 30 are disposed between the

case members

2a and 2b of the air conditioning case 2 so as to be rotatable and on the same rotational axis.

(First example)
Next, the mix door 20 or the mode door 30 and the case member 2a or the case member 2b are appropriately configured to restrict the movement of the

doors

20 and 30 in the direction along the rotation axis of the supported portions 21 and 31. A first example of the

restriction mechanisms

50a, 50b and 60a, 60b will be described with reference to FIGS.

As shown in FIGS. 2 and 3, the restriction mechanism 50a is composed of the first door 20 and the case member 2a (first wall), and the outer surface of the side wall portion 22a is formed on the inner surface of the case member 2a. The contact is possible. As shown in FIGS. 2 and 3, the restriction mechanism 50 b is composed of the first door 20 and the case member 2 b (second wall), and the other of the first supported portions 21 b. The peripheral wall portion 28b can contact the inner surface of the case member 2b.

As shown in FIGS. 2 to 4, the restriction mechanism 60 a is configured by the second door 30 and the case member 2 a (first wall), from the outer surface of the side wall portion 32 a toward the case member 2 a. The extended one-side door extension 61 can be brought into contact with the inner surface of the case member 2a. In this embodiment, as shown in FIG. 4, the one-side door extension portion 61 has an arc shape extending along the circumferential direction centering on one side 31 a of the second supported portion. Further, as shown in FIG. 2 to FIG. 4, the restriction mechanism 60 b is configured by the second door 30 and the case member 2 b (second wall), from the other 31 b of the second supported portion. The other-side door extension 62 extending in a direction substantially perpendicular to the rotation axis can be brought into contact with the inner surface of the case member 2b.

Here, as shown in FIG. 2, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall). ) Has the following relationship when the mix door 20 and the mode door 30 are in contact with the case member 2a.

The space L1 exists between the other side door extension 62 of the mode door 30 (second door) and the inner surface of the case member 2b. The interval L1 is a range of movement of the mode door 30 in the rotation axis direction. Moreover, the space | interval L2 exists between the other 21b of the 1st supported part of the mix door 20 (1st door), and the inner surface of the case member 2b. The interval L2 is a range of movement of the mix door 20 in the rotation axis direction. Between the mix door 20 and the mode door 30, the distance L101 between the disk-like part 28a of the other 21b of the first supported part of the mix door 20 and the side wall part 32b of the mode door 30, and the mix door The distance L102 between one of the first supported portions 20a of the 20 and the outer surface of the side wall portion 32a of the mode door 30, the bottom surface of the cylindrical hole 25 of the first supported portion 21a of the mix door 20 and the mode The distance L103 between the top surface of one of the second supported parts of the door 30 and the circle of the other side door extension part 62 of the mode door 30 and the other 21b of the first supported part of the mix door 20 There is an interval L104 between the plate-like portion 28a. The interval L1 is set smaller than the interval L2, the interval L101, the interval L102, the interval L103, and the interval L104, and the interval L2 is set smaller than any of the interval L101, the interval L102, the interval L103, and the interval L104. .

Moreover, as FIG. 3 shows, the mix door 20 (1st door), the mode door 30 (2nd door), the case member 2a (1st wall), and the case member 2b (2nd wall) Is the following relationship in a state where the mix door 20 and the mode door 30 are in contact with the case member 2b.

A space L3 exists between the one-side door extension 61 of the mode door 30 (second door) and the inner surface of the case member 2a. The interval L3 is a moving range of the mode door 30 in the rotation axis direction, and is equal to the interval L1. Moreover, the space | interval L4 exists between the side wall part 22a of the mix door 30 (1st door), and the inner surface of the case member 2a. The interval L4 is a moving range of the mix door 20 in the rotation axis direction, and is equal to the interval L2. Between the mix door 20 and the mode door 30, the space L101, the space L102, the space L103, and the space L104 exist. The interval L3 is set smaller than any of the intervals L101, L102, L103, and L104, and the interval L4 is set smaller than any of the intervals L3, L101, L102, L103, and L104. .

Therefore, the distance L1 is equal to the distance L3, and the distances L1 and L3 are smaller than the distances L101, L102, L103, and L104 (the sizes of the distances L101, L102, L103, and L104 are not important). The intervals L2 and L4 are equal, and the intervals L2 and L4 are smaller than the intervals L101, L102, L103, and L104 (the sizes of the intervals L101, L102, L103, and L104 are not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 2), the interval L1 is greater than the interval L101. Since the distance L2 is smaller than the distance L102, the distance L103, and the distance L104, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 2), the interval L101 is reduced, and the interval L102, the interval L103, and the interval L104 are increased. Here, since the distance L1 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the distance L101, the distance L101 does not become zero. When only the mix door 20 moves so as to contact the case member 2b, the interval L101 widens, and the interval L102, the interval L103, and the interval L104 shrink. Here, since the interval L2 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the interval L102, the interval L103, and the interval L104, the interval L102, the interval L103, and the interval L104 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the distance L1 is smaller than the distance L2, so that the movement amount of the mode door 30 is smaller than the mix door 20, and the distance L101. And the interval L102, the interval L103, and the interval L104 are reduced. Here, since the interval L2 is smaller than the interval L102, the interval L103, and the interval L104, the interval L102, the interval L103, and the interval L104 do not become zero.

Further, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2a (move to the left in FIG. 3), the interval L3 is larger than the intervals L102, L103, and L104. Since the distance L4 is smaller than the distance L101, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 3), the interval L101 is widened, and the interval L102, the interval L103, and the interval L104 are reduced. Here, since the interval L3 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the interval L102, the interval L103, and the interval L104, the interval L102, the interval L103, and the interval L104 do not become zero. When only the mix door 20 moves so as to contact the case member 2a, the interval L101 is reduced, and the interval L102, the interval L103, and the interval L104 are increased. Here, since the distance L4 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the distance L101, the distance L101 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the distance L3 is smaller than the distance L4. Therefore, the movement amount of the mode door 30 is smaller than the mix door 20, and the distance L101. Shrinks, and the interval L102, the interval L103, and the interval L104 increase. Here, since the interval L4 is smaller than the interval L101, the interval L101 does not become zero.

However, according to the first example of the first embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

31 a and 31 b is the contact between the mix door 20 and the mode door 30. Regardless, since it is performed only by contact with the

case members

2a and 2b, the movement range of the mode door 30 can be reduced. Further, since the mix door 20 and the mode door 30 do not contact each other, the two

doors

20 and 30 are not affected by the rotation of the other door.

(Second example)
Furthermore, the restriction | limiting comprised suitably by the mix door 20 or the mode door 30, and the case member 2a or the case member 2b for restrict | limiting the movement of the supported parts 21 and 31 of the

doors

20 and 30 in the direction along the rotation axis. A second example of the

mechanisms

50a and 50b and 60a and 60b will be described with reference to FIGS.

As shown in FIGS. 5 and 6, the restriction mechanism 50 a is configured by the first door 20 and the case member 2 a (first wall) as in the first example, and the outer surface of the side wall portion 22 a. Can contact the inner surface of the case member 2a. As shown in FIGS. 5 and 6, the restriction mechanism 50b includes the first door 20 and the case member 2b (second wall), as in the first example. The peripheral wall part 28b of the other part 21b of the part can be brought into contact with the inner surface of the case member 2b.

As shown in FIGS. 5 to 7, the restriction mechanism 60 a is configured by the second door 30 and the case member 2 a (first wall), as in the first example, and the outer surface of the side wall portion 32 a. The one-side door extension portion 61 extending from the case toward the case member 2a can be brought into contact with the inner surface of the case member 2a. In this embodiment, as shown in FIG. 7, the one-side door extension portion 61 has an arc shape extending along the circumferential direction centering on one side 31 a of the second supported portion. Further, as shown in FIG. 5 to FIG. 7, the restriction mechanism 60 b is configured by the second door 30 and the case member 2 b (second wall), and extends from the outer surface of the side wall portion 32 b to the case member 2 b. The other-side door extension 63 extending toward the inner side of the case member 2b can be brought into contact therewith. In this embodiment, as shown in FIG. 7, the other side door extension 63 has an arc shape extending along the circumferential direction with the other end 31b of the second supported portion as the center point.

Here, as shown in FIG. 5, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall). ) Has the following relationship when the mix door 20 and the mode door 30 are in contact with the case member 2a.

The space | interval L5 exists between the other side door extension part 63 of the mode door 30 (2nd door), and the inner surface of the case member 2b. The interval L5 is a moving range of the mode door 30 in the rotation axis direction. Similar to the first example, an interval L2 exists between the other 21b of the first supported portion of the mix door 20 (first door) and the inner surface of the case member 2b. Between the mix door 20 and the mode door 30, the space | interval L101, the space | interval L102, and the space | interval L103 exist among the space | intervals between the mix door 20 and the mode door 30 shown by the 1st example. The interval L2 is set smaller than any of these intervals L101, L102, and L103. The interval L5 is set smaller than any of the interval L2, the interval L101, the interval L102, and the interval L103.

Moreover, as FIG. 6 shows, the mix door 20 (1st door), the mode door 30 (2nd door), the case member 2a (1st wall), and the case member 2b (2nd wall) Is the following relationship in a state where the mix door 20 and the mode door 30 are in contact with the case member 2b.

As in the first example, an interval L3 exists between the one-side door extension 61 of the mode door 30 (second door) and the inner surface of the case member 2a. Similar to the first example, an interval L4 exists between the side wall portion 22a of the mix door 20 and the inner surface of the case member 2a. Among the intervals between the mix door 20 and the mode door 30 shown in the first example, there are an interval L101, an interval L102, and an interval L103 between the mix door 20 and the mode door 30. The intervals L3 and L4 are set smaller than any of these intervals L101, L102, and L103.

Therefore, the distance L5 is equal to the distance L3, and the distances L5, L3 are smaller than the distances L101, L102, L103 (the size between the distances L101, L102, L103 is not important). The intervals L2 and L4 are equal, and the intervals L2 and L4 are smaller than the intervals L101, L102, and L103 (the sizes of the intervals L101, L102, L103, and L104 are not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 move so as to abut against the case member 2b (move to the right in FIG. 5), the interval L5 is Since the distance L2 is smaller than the distance L101 and the distance L2 is smaller than both the distance L102 and the distance L103, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 5), the interval L101 is reduced, and the interval L102 and the interval L103 are increased. Here, since the distance L5 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the distance L101, the distance L101 does not become zero. When only the mix door 20 moves so as to contact the case member 2b, the interval L101 widens, and the interval L102 and the interval L103 shrink. Here, since the distance L2 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the distance L102 and the distance L103, the distance L102 and the distance L102 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the distance L5 is smaller than the distance L2, so that the movement amount of the mode door 30 is smaller than the mix door 20, and the distance L101. Increases and the interval L102 and the interval L103 are reduced. Here, since the distance L2 is smaller than the distance L102 and the distance L103, the distance L102 and the distance L103 do not become zero.

When one or both of the mix door 20 and the mode door 30 move so as to contact the case member 2a (move to the left in FIG. 6), the intervals L3 and L4 are the intervals L101 and L102. Since the distance is smaller than any of the intervals L103, the mix door 20 and the mode door 30 do not come into contact with each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 6), the interval L101 is widened, and the interval L102 and the interval L103 are reduced. Here, since the distance L3 (the movement range of the mode door 30 in the rotation axis direction) is smaller than the distance L102 and the distance L103, the distance L102 and the distance L103 do not become zero. When only the mix door 20 moves so as to contact the case member 2a, the interval L101 is reduced, and the interval L102 and the interval L103 are increased. Here, since the distance L4 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the distance L101, the distance L101 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the distance L3 is smaller than the distance L4. Therefore, the movement amount of the mode door 30 is smaller than the mix door 20, and the distance L101. Shrinks and the interval L102 and the interval L103 increase. Here, since the interval L4 is smaller than the interval L101, the interval L101 does not become zero.

However, also in the second example of the first embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

31 a and 31 b is applied to the contact between the mix door 20 and the mode door 30. Regardless, since it is performed only by contact with the

case members

doors

20 and 30 are not affected by the rotation of the other door.

(Third example)
Furthermore, it is appropriately configured by the mix door 20 or the mode door 30 and the case member 2a or the case member 2b for restricting the movement of the supported portions 21 and 31 of the

doors

20 and 30 in the direction along the rotation axis. A third example of the

restriction mechanisms

50a and 50b and 60a and 60b will be described with reference to FIGS.

As shown in FIGS. 8 and 9, the restriction mechanism 50 a is configured by the first door 20 and the case member 2 a (first wall) as in the first and second examples. The outer surface of the portion 22a can be brought into contact with the inner surface of the case member 2a. As shown in FIGS. 8 and 9, the restricting mechanism 50b is configured by the first door 20 and the case member 2b (second wall) as in the first and second examples. The peripheral wall portion 28b of the other supported portion 21b can be brought into contact with the inner surface of the case member 2b.

As shown in FIGS. 8 to 10, the restriction mechanism 60 a is configured by the second door 30 and the case member 2 a (first wall), and faces the second door 30 from the inner surface of the case member 2 a. The one side wall extending portion 64 extending so as to be able to abut on the outer surface of the side wall portion 32 a of the second door 30. On the other hand, as shown in FIG. 10A, the side wall extending portion 64 has an arc shape extending along the circumferential direction with the bearing hole 41 as a center point, as shown in FIG. Further, as shown in FIG. 8 to FIG. 10, the restriction mechanism 60 b is configured by the second door 30 and the case member 2 b (second wall), and the second door 30 extends from the inner surface of the case member 2 b. The other side wall extending portion 65 extending toward the side can be brought into contact with the outer surface of the side wall portion 32 b of the second door 30. In this embodiment, the other side wall extending portion 65 has an arc shape extending along the circumferential direction with the bearing hole 42 as the center point, as shown in FIG.

Here, as shown in FIG. 8, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall). ) Has the following relationship when the mix door 20 and the mode door 30 are in contact with the case member 2a.

There is a gap L6 between the side wall 32b of the mode door 30 (second door) and the other side wall extension 65 of the case member 2b. The interval L6 is a range of movement of the mode door 30 in the rotation axis direction. Similar to the first example and the second example, a gap L2 exists between the other 21b of the first supported portion of the mix door 20 (first door) and the inner surface of the case member 2b. Similar to the second example, an interval L101, an interval L102, and an interval L103 exist between the mix door 20 and the mode door 30. The interval L2 is set smaller than any of these intervals L101, L102, and L103, and the interval L6 is set smaller than any of the intervals L2, L101, L102, and L103.

Moreover, as FIG. 9 shows, the mix door 20 (1st door), the mode door 30 (2nd door), the case member 2a (1st wall), and the case member 2b (2nd wall) Is the following relationship in a state where the mix door 20 and the mode door 30 are in contact with the case member 2b.

There is a gap L7 between the side wall 32a of the mode door 30 (second door) and the one side wall extension 64 of the case member 2a. The interval L7 is a range of movement of the mode door 30 in the rotation axis direction, and is equal to the interval L6. Similar to the first example and the second example, a gap L4 exists between the side wall 22a of the mix door 20 (first door) and the inner surface of the case member 2a. Similar to the second example, an interval L101, an interval L102, and an interval L103 exist between the mix door 20 and the mode door 30. The intervals L7 and L4 are set smaller than any of these intervals L101, L102, and L103.

Therefore, the distance L6 is equal to the distance L7, and the distances L6, L7 are smaller than the distances L101, L102, L103 (the size between the distances L101, L102, L103 is not important). The distance L2 is equal to the distance L4, and the distances L2 and L4 are smaller than the distances L101, L102, and L103 (the size between the distances L101, L102, and L103 is not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 8), the interval L6 is greater than the interval L101. Since the distance L2 is smaller than the distance L102 and the distance L103, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moved to the right in FIG. 8), the interval L101 is reduced, and the interval L102 and the interval L103 are increased. Here, since the distance L6 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the distance L101, the distance L101 does not become zero. When only the mix door 20 moves so as to contact the case member 2b, the interval L101 widens, and the interval L102 and the interval L103 shrink. Here, since the distance L2 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the distance L102 and the distance L103, the distance L102 and the distance L103 do not become zero. When the mix door 20 and the mode door 30 move so as to abut against the case member 2b, the distance L6 is smaller than the distance L2. Increases and the interval L102 and the interval L103 are reduced. Here, since the distance L2 is smaller than the distance L102 and the distance L103, the distance L102 and the distance L103 do not become zero.

Further, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2a (move to the left in FIG. 9), the interval L7 is smaller than the intervals L102 and L103. Since L4 is smaller than the distance L101, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 9), the interval L101 is widened, and the interval L102 and the interval L103 are reduced. Here, since the distance L7 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the distance L102 and the distance L103, the distance L102 and the distance L103 do not become zero. When only the mix door 20 moves so as to contact the case member 2a, the interval L101 is reduced, and the interval L102 and the interval L103 are increased. Here, since the distance L4 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the distance L101, the distance L101 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the distance L7 is smaller than the distance L4. Therefore, the movement amount of the mode door 30 is smaller than the mix door 20, and the distance L101. Shrinks and the interval L102 and the interval L103 increase. Here, since the interval L4 is smaller than the interval L101, the interval L101 does not become zero.

However, also in the third example of the first embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

case members

doors

20 and 30 are not affected by the rotation of the other door.

(4th example)
And the regulation suitably comprised by the mix door 20 or the mode door 30, and the case member 2a or the case member 2b for restricting the movement of the supported parts 21 and 31 of the

doors

20 and 30 in the direction along the rotation axis. A fourth example of the

mechanisms

50a, 50b and 60a, 60b will be described with reference to FIGS.

As shown in FIGS. 11 and 12, the restriction mechanism 50a is configured by the first door 20 and the case member 2a (first wall) as in the first to third examples. The outer surface of the portion 22a can be brought into contact with the inner surface of the case member 2a. As shown in FIG. 11 and FIG. 12, the restriction mechanism 50b is composed of the first door 20 and the case member 2b (second wall) as in the first to third examples. The peripheral wall portion 28b of the other supported portion 21b can be brought into contact with the inner surface of the case member 2b.

As shown in FIGS. 11 and 12, the restriction mechanism 60a is configured by the second door 30 and the case member 2a (first wall), and the side wall portion 32a of the mode door 30 of the case member 2a. A flat stepped surface formed by bending a portion that faces the outer surface of the mix door 20 and is above the first supported portion 21a of the mix door 20 to the case member 2b side of the other portion of the case member 2a. 66. The step surface 66 can be brought into contact with the outer surface of the side wall portion 32a. Moreover, as shown in FIGS. 11 and 12, the regulating mechanism 60b is configured by the second door 30 and the case member 2b (second wall), and the mode door 30 of the inner surface of the case member 2b. By bending a portion that faces the outer surface of the side wall portion 32b and is above the peripheral wall portion 28b of the first supported portion 21b of the mix door 20 to the case member 2a side than the other portion of the case member 2b. A flat stepped surface 67 is formed. The step surface 67 can be brought into contact with the outer surface of the side wall portion 32b.

Here, as shown in FIG. 11, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall). ) Has the following relationship when the mix door 20 and the mode door 30 are in contact with the case member 2a.

The space | interval L8 exists between the side wall part 32b of the mode door 30, and the level | step difference surface 67 of the case member 2b. The interval L8 is a moving range of the mode door 30 in the rotation axis direction. Similar to the first to third examples, an interval L2 exists between the other 21b of the first supported portion of the mix door 20 (first door) and the inner surface of the case member 2b. Between the mix door 20 and the mode door 30, there are an interval L101, an interval L102, and an interval L103, as in the second example and the third example. The interval L2 is set smaller than any of these intervals L101, L102, and L103, and the interval L8 is set smaller than any of the intervals L2, L101, L102, and L103.

As shown in FIG. 12, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall). Is the following relationship in a state where the mix door 20 and the mode door 30 are in contact with the case member 2b.

There is a gap L9 between the side wall 32a of the mode door 30 (second door) and the step surface 66 of the case member 2a. The interval L9 is a range of movement of the mode door 30 in the rotation axis direction, and is equal to the interval L8. Similar to the first to third examples, a gap L4 exists between the side wall 22a of the mix door 20 (first door) and the inner surface of the case member 2a. Between the mix door 20 and the mode door 30, there are an interval L101, an interval L102, and an interval L103, as in the second example and the third example. The intervals L9 and L4 are set smaller than any of these intervals L101, L102, and L103.

Therefore, the distance L8 is equal to the distance L9, and the distances L8, L9 are smaller than the distances L101, L102, L103 (the size between the distances L101, L102, L103 is not important). The distance L2 is equal to the distance L4, and the distances L2 and L4 are smaller than the distances L101, L102, and L103 (the size between the distances L101, L102, and L103 is not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 11), the interval L8 is greater than the interval L101. Since the distance L2 is smaller than the distance L102 and the distance L103, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 11), the interval L101 is reduced, and the interval L102 and the interval L103 are increased. Here, since the distance L8 (the movement range of the mode door 30 in the rotational axis direction) is smaller than the distance L101, the distance L101 does not become zero. When only the mix door 20 moves so as to contact the case member 2b, the interval L101 widens, and the interval L102 and the interval L103 shrink. Here, since the distance L2 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the distance L102 and the distance L103, the distance L102 and the distance L103 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the distance L8 is smaller than the distance L2, so that the movement amount of the mode door 30 is smaller than the mix door 20, and the distance L101. Increases and the interval L102 and the interval L103 are reduced. Here, since the distance L2 is smaller than the distance L102 and the distance L103, the distance L102 and the distance L103 do not become zero.

However, also in the fourth example of the first embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

case members

doors

20 and 30 are not affected by the rotation of the other door.

13 to 23 show a second embodiment of the door holding structure.

The first supported portion 21a (one of the first supported portions) of the mix door 20 is located outside the air conditioning case 2 on the rotation axis from the side wall portion 22a, as shown in FIGS. It is formed by extending in a cylindrical shape toward. And one side 21a of the 1st supported part is in bearing hole 41 formed in case member 2a of case member 2a (1st wall) and 2b (2nd wall) which air conditioning case 2 counters. It is rotatably supported and has a cylindrical hole 25. In addition, the first supported portion 21b (the other of the first supported portions) of the mix door 20 has an air conditioning case 2 on the rotation axis from the side wall portion 22b, as shown in FIGS. It is formed by extending in the shape of a column toward the outside.

As shown in FIGS. 15, 18 and 21, the second supported portion 31a (one of the second supported portions) of the mode door 30 is positioned outside the air conditioning case 2 on the rotation axis from the side wall portion 22a. It is formed by extending in the shape of a column toward Further, the second supported portion 31b (the other of the second supported portions) of the mode door 30 is air-conditioned case 2 on the rotation axis from the side wall portion 22b, as shown in FIGS. It is formed by extending in a cylindrical shape toward the outside. The other supported portion 31b of the second supported portion is rotatably supported by a bearing hole 42 formed in the case member 2b of the facing

case members

2a and 2b of the air conditioning case 2 and has a cylindrical hole 35. Have.

One end 31a of the second supported portion has an outer diameter dimension slightly smaller than the inner diameter size of the cylindrical hole 25 formed in the first supported portion one 21a. One end 31a of the supported portion can be rotatably inserted into the cylindrical hole 25 of the first supported portion 21a. The other end 21b of the first supported portion has an outer diameter that is slightly smaller than the inner diameter of the cylindrical hole 35 formed in the other 31b of the second supported portion. The end portion of the other supported portion 21b of the first supported portion can be rotatably inserted into the cylindrical hole 35 of the second supported portion 31b.

The dimension in the direction along the rotation axis of one side 21a of the first supported part is formed to be longer than the dimension in the direction along the rotation axis of one side 31a of the second supported part. The inner shape of the cylindrical hole 25 in a range where one of the two supported portions 31a is inserted is formed so that at least the cross section is circular. The dimension of the second supported part in the direction along the rotation axis of the other supported part 31b is longer than the dimension of the other part of the first supported part in the direction of the rotational axis of the other supported part 21b. The inner shape of the cylindrical hole 35 in the range where the other 21b of the first supported portion is inserted is formed so that at least the cross section is circular.

To assemble the mix door 20 and the mode door 30 having such a configuration, as shown in FIGS. 15 and 18, the first supported

portions

21a and 21b and the supported

portions

31a and 31b are brought close to each other. The mixed door 20 and the mode door 30 are made to face each other, and from this state, the supported

portions

21a and 21b of the mixed door 20 and the supported

portions

31a and 31b of the mode door 30 are arranged in a line along the coaxial line. The

doors

20 and 30 are shifted from each other along the rotational axis, and then the mode door 30 is moved so as to overlap the mix door 20 in the axial direction, and one of the second supported parts is moved. 31a is made to approach along the axial direction with respect to one side 21a of the first supported part, and the other 31b of the second supported part is placed along the axial direction with respect to the other side 21b of the first supported part. No. The brought closer to one 31a of the support portion in the first direction and the same direction to be close to one 21a of the supported portion.

Then, the one 31a of the second supported part is inserted into the cylindrical hole 25 of the one 21a of the first supported part, that is, the one 21a of the first supported part is inserted into the one 31a of the second supported part. And the other 31b of the second supported portion is sheathed on the other 21b of the first supported portion, that is, the other 21b of the first supported portion is the other 31b of the second supported portion. The mix door 20 and the mode door 30 are temporarily assembled so as to be rotatable on the same axis by being inserted into the cylindrical hole 35 having the same.

After that, as shown in FIG. 21, the mix door 20 and the mode door 30 are brought closer to the

case member

2a, 2b in the state of being divided into left and right from the rotation axis direction, and the first supported portion 21a is moved to the case member. 2a is inserted into the bearing hole 41, the other 31b of the second supported portion is inserted into the bearing hole 42 of the other 2b of the first case member, and the

case members

2a and 2b are combined to form the air conditioning case 2. . In FIG. 21, the mix door 20 and the mode door 30 are illustrated separately for the sake of clarity, but the above operation is performed in a temporarily assembled state.

doors

regulation mechanisms

50a, 50b and 60a, 60b will be described with reference to FIGS.

As shown in FIGS. 13 to 15, the restriction mechanism 50 a is configured by the first door 20 and the case member 2 a (first wall), and the outer surface of the side wall portion 22 a is on the inner surface of the case member 2 a. It can be contacted. Further, as shown in FIG. 13 to FIG. 15, the regulation mechanism 50 b is configured by the first door 20 and the case member 2 b (second wall), and extends from the outer surface of the side wall portion 22 b to the case member 2 b. A door extension 51 extending toward the front can be contacted. In this embodiment, as shown in FIG. 15, the door extension portion 51 has an arc shape extending along the circumferential direction with the other side 21 b of the first supported portion as a center point.

As shown in FIGS. 13 to 15, the restriction mechanism 60 a is configured by a case member 2 a (first wall) and a second door 30, and the outer surface of the side wall portion 32 a is formed on the inner surface of the case member 2 a. The one-side door extension 61 extending from the case toward the case member 2a can be brought into contact therewith. In this embodiment, as shown in FIG. 15, the one-side door extension portion 61 has an arc shape extending along the circumferential direction with the first supported portion 31 a as the center point. Further, as shown in FIG. 13 to FIG. 15, the restriction mechanism 60 b is composed of a case member 2 b (second wall) and a second door 30, and a second member 30 is formed on the inner surface of the case member 2 b. The other-side door extension 62 extending in a direction substantially perpendicular to the rotation axis from the other supported portion 31b can be contacted.

Next, referring to FIG. 13, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) The dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2a will be described below. However, the same intervals as those in the first embodiment are given the same reference numerals as those in the first embodiment, and the description thereof is simplified by giving the intervals L1, L102, and L103.

Between the mode door 30 (second door) and the case member 2b, there is an interval L1 similar to that in the first embodiment. A gap L10 exists between the door extension 51 of the mix door 20 (first door) and the inner surface of the case member 2b. The interval L10 is a moving range of the mix door 20 in the rotation axis direction. And between the mix door 20 and the mode door 30, the outer surface of the side wall part 22b of the mix door 20 and the 2nd supported part of the mode door 30 other than the space | interval L102 and the space | interval L103 similar to Example 1. There is an interval L105 between the other 31b and an interval L106 between the other 31b of the first supported portion of the mix door 20 and the second supported portion 31b of the mode door 30. The interval L10 is set smaller than any of the intervals L102, L103, L105, and L106.

Further, referring to FIG. 14, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) A dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2b will be described below. However, the same intervals as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is simplified for the intervals L3, L4, L102, and L103.

Between the mode door 30 (second door) and the case member 2a, there is an interval L3 similar to that in the first embodiment, and between the mixed door mode door 20 (second door) and the case member 2b, There is an interval L4 similar to that in the first embodiment. Between the mix door 20 and the mode door 30, in addition to the interval L102 and the interval L103 similar to the first embodiment, the outer surface of the side wall portion 22b of the mix door 20 and the other 31b of the second supported portion of the mode door 30 are provided. And an interval L106 between the other first supported portion 31b of the mix door 20 and the second supported portion 31b of the mode door 30 exist. The interval L3 is set smaller than any of the intervals L102, L103, L105, and L106.

Therefore, the distance L1 is equal to the distance L3, and the distances L1 and L3 are smaller than the distances L102, L103, L105, and L106 (the sizes of the distances L102, L103, L105, and L106 are not important). The distance L10 is equal to the distance L4, and the distances L10 and L4 are smaller than the distances L102, L103, L105, and L106 (the sizes of the distances L102, L103, L105, and L106 are not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 13), the interval L10 is the interval L102. Since it is smaller than any of the interval L103, the interval L105, and the interval L106, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (move to the right in FIG. 13), only the interval L1 is reduced, and all of the intervals L102, L103, L105, and L106 are reduced. There is no. For this reason, even if the mode door 30 moves to the right side of FIG. 13, the interval L102, the interval L103, the interval L105, and the interval L106 do not become zero. When only the mix door 20 moves so as to contact the case member 2b, all of the intervals L102, L103, L105, and L106 are reduced. Here, since the interval L10 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the interval L102, the interval L103, the interval L105, and the interval L106 become zero. There is nothing. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the movement amount of the mode door 30 does not affect the mix door 20 even if the interval L10 is smaller than the interval L1. Therefore, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the intervals L102, L103, L105, and L106 are similar to the case where only the mix door 20 moves. All of them shrink, but since the interval L10 is smaller than the intervals L102, L103, L105, and L106, the intervals L102, L103, L105, and L106 do not become zero.

Further, when one or both of the mix door 20 and the mode door 30 move so as to contact the case member 2a (move to the left in FIG. 14), the interval L3 is the interval L102, the interval L103, the interval L105, the interval Since it is smaller than any of L106, the mix door 20 and the mode door 30 do not contact in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 14), all of the intervals L102, L103, L105, and L106 are reduced. Here, since the interval L3 (the movement range of the mode door 30 in the rotation axis direction) is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the interval L102, the interval L103, the interval L105, and the interval L106 become zero. There is nothing. When only the mix door 20 moves so as to contact the case member 2a, only the interval L4 is reduced, and none of the intervals L102, L103, L105, and L106 is reduced. For this reason, even if the mix door 20 moves to the left side of FIG. 14, the interval L102, the interval L103, the interval L105, and the interval L106 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the movement amount of the mix door 20 does not affect the mode door 30 even if the interval L4 is smaller than the interval L3. For this reason, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the intervals L102, L103, L105, L106 All of them shrink, but the interval L3 is smaller than the intervals L102, L103, L105, and L106, so the intervals L102, L103, L105, and L106 do not become zero.

However, according to the first example of the second embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

case members

doors

20 and 30 are not affected by the rotation of the other door.

doors

20 and 30 in the direction along the rotation axis. A second example of the

mechanisms

50a, 50b and 60a, 60b will be described with reference to FIGS.

As shown in FIGS. 16 to 18, the restriction mechanism 50 a is configured by the first door 20 and the case member 2 a (first wall) as in the first example of the present embodiment. The outer surface of the portion 22a can be brought into contact with the inner surface of the case member 2a. Further, as shown in FIGS. 16 to 18, the regulating mechanism 50 b is configured by the first door 20 and the case member 2 b (second wall) as in the first example of the present embodiment. The door extension 51 extending from the outer surface of the side wall 22b toward the case member 2b can be brought into contact therewith. In this embodiment, as shown in FIG. 18, the door extension portion 51 has an arc shape extending along the circumferential direction with the other side 21 b of the first supported portion as a center point.

As shown in FIGS. 16 to 18, the restriction mechanism 60 a is composed of a case member 2 a (first wall) and a second door 30 as in the first example of the present embodiment. The one side door extension part 61 extended from the outer surface of the side wall part 32a toward the case member 2a can contact | abut on the inner surface of the member 2a. In this embodiment, as shown in FIG. 18, the one-side door extension portion 61 has an arc shape extending along the circumferential direction centering on one side 31 a of the second supported portion. Further, as shown in FIGS. 16 to 18, the regulation mechanism 60 b is configured by the second door 30 and the case member 2 b (second wall), and is formed from the outer surface of the side wall portion 32 b to the case member 2 b. The other side door extending portion 63 extending toward the inner side can be brought into contact with the inner surface of the case member 2b. In this embodiment, as shown in FIG. 18, the other side door extension 63 has an arc shape extending along the circumferential direction with the other end 31 b of the second supported portion as the center point.

Next, referring to FIG. 16, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) The dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2a will be described below. However, the same intervals as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof will be simplified.

Between the mode door 30 (second door) and the case member 2b, an interval L5 similar to that in the first embodiment exists. A gap L10 exists between the door extension 51 of the mix door 20 (first door) and the inner surface of the case member 2b. The interval L10 is a moving range of the mix door 20 in the rotation axis direction. Between the mix door 20 and the mode door 30, in addition to the interval L102 and the interval L103 similar to the first embodiment, the outer surface of the side wall portion 22b of the mix door 20 and the other 31b of the second supported portion of the mode door 30 are provided. And an interval L106 between the other first supported portion 31b of the mix door 20 and the second supported portion 31b of the mode door 30 exist. The interval L10 is set smaller than any of the intervals L102, L103, L105, and L106.

In addition, referring to FIG. 17, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) A dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2b will be described below. However, the same intervals as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is simplified for the intervals L3, L4, L102, and L103.

Between the mode door 30 (second door) and the case member 2a, there is an interval L3 similar to that in the first embodiment, and between the mixed door mode door 20 (second door) and the case member 2b, There is an interval L4 similar to that in the first embodiment. Between the mix door 20 and the mode door 30, in addition to the interval L102 and the interval L102 similar to the first embodiment, the outer surface of the side wall portion 22b of the mix door 20 and the other 31b of the second supported portion of the mode door 30 are provided. And an interval L106 between the other first supported portion 31b of the mix door 20 and the second supported portion 31b of the mode door 30 exist. The interval L3 is set smaller than any of the intervals L102, L103, L105, and L106.

Therefore, the distance L5 is equal to the distance L3, and the distances L5 and L3 are smaller than the distances L102, L103, L105, and L106 (the sizes of the distances L102, L103, L105, and L106 are not important). The distance L10 is equal to the distance L4, and the distances L10 and L4 are smaller than the distances L102, L103, L105, and L106 (the sizes of the distances L102, L103, L105, and L106 are not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 16), the first of the second embodiment. Similarly to the example, since the interval L10 is smaller than any of the interval L102, the interval L103, the interval L105, and the interval L106, the mix door 20 and the mode door 30 do not contact in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 16), only the interval L5 is reduced, and all of the intervals L102, L103, L105, and L106 are reduced. There is no. For this reason, even if the mode door 30 moves to the right side of FIG. 16, the interval L102, the interval L103, the interval L105, and the interval L106 do not become zero. When only the mix door 20 moves so as to contact the case member 2b, all of the intervals L102, L103, L105, and L106 are reduced. Here, since the interval L10 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the interval L102, the interval L103, the interval L105, and the interval L106 become zero. There is nothing. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, even if the interval L10 is smaller than the interval L5, the movement amount of the mode door 30 does not affect the mix door 20. Therefore, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the intervals L102, L103, L105, and L106 are the same as the case where only the mix door 20 moves. All of them shrink, but since the interval L10 is smaller than the intervals L102, L103, and L105, the intervals L102, L103, L105, and L106 do not become zero.

In addition, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a (move to the left in FIG. 17), the interval L3 is set as in the first example of the second embodiment. Since it is smaller than any of the interval L102, the interval L103, the interval L105, and the interval L106, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 17), all of the intervals L102, L103, L105, and L106 are reduced. Here, since the interval L3 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the interval L102, the interval L103, the interval L105, and the interval L106 become zero. There is nothing. When only the mix door 20 moves so as to contact the case member 2a, only the interval L4 is reduced, and none of the intervals L102, L103, L105, and L106 is reduced. For this reason, even if the mix door 20 moves to the left side of FIG. 17, the intervals L102, L103, L105, and L106 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the movement amount of the mix door 20 does not affect the mode door 30 even if the interval L4 is smaller than the interval L3. For this reason, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the interval L102, the interval L103, the interval L105, and L106 are similar to the case where only the mode door 30 moves. All of them shrink, but since the interval L3 is smaller than the intervals L102, L103, L105, and L106, the intervals L102, L103, L105, and L106 do not become zero.

However, also in the second example of the second embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

case members

doors

20 and 30 are not affected by the rotation of the other door.

doors

20 and 30 in the direction along the rotation axis. A third example of the

restriction mechanisms

50a and 50b and 60a and 60b will be described with reference to FIGS.

As shown in FIGS. 19 to 21, the restriction mechanism 50 a is configured by the first door 20 and the case member 2 a (first wall) as in the first example and the second example of the present embodiment. Therefore, the outer surface of the side wall portion 22a can be brought into contact with the inner surface of the case member 2a. Further, as shown in FIG. 19 to FIG. 21, the regulating mechanism 50b includes the first door 20 and the case member 2b (second wall) as in the first example and the second example of this embodiment. The door extension part 51 extended from the outer surface of the side wall part 22b toward the case member 2b can be contacted. Although not shown, the door extension 51 is an arc extending along the circumferential direction centering on the other side 21b of the first supported portion, as in FIG. 15 of the first example and FIG. 18 of the second example. It has a shape.

As shown in FIGS. 19 to 21, the restriction mechanism 60 a is configured by the second door 30 and the case member 2 a (first wall), and faces the second door 30 from the inner surface of the case member 2 a. The one side wall extending portion 64 extending so as to be able to abut on the outer surface of the side wall portion 32 a of the second door 30. On the other hand, in this embodiment, the side wall extending portion 64 has an arc shape extending along the circumferential direction with the bearing hole 41 as the center point, as shown in FIG. Further, as shown in FIGS. 19 to 21, the restriction mechanism 60 b is configured by the second door 30 and the case member 2 b (second wall), and the second door 30 is formed from the inner surface of the case member 2 b. The other side wall extending portion 65 extending toward the side can be brought into contact with the outer surface of the side wall portion 32 b of the second door 30. In this embodiment, the other side wall extension 65 has an arc shape extending along the circumferential direction with the bearing hole 42 as the center point, as shown in FIG.

Next, referring to FIG. 19, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) The dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2a will be described below. However, the same intervals as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof will be simplified.

Between the mode door 30 (second door) and the case member 2b, an interval L6 similar to that in the first embodiment exists. A gap L10 exists between the door extension 51 of the mix door 20 (first door) and the inner surface of the case member 2b. The interval L10 is a moving range of the mix door 20 in the rotation axis direction. Between the mix door 20 and the mode door 30, in addition to the interval L102 and the interval L103 similar to those in the first embodiment, the outer surface of the side wall 22b of the mix door 20 and the other 31b of the second supported portion of the mode door 30 are provided. And an interval L106 between the other first supported portion 31b of the mix door 20 and the second supported portion 31b of the mode door 30 exist. The interval L10 is set smaller than any of the intervals L102, L103, L105, and L106.

Further, referring to FIG. 20, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) A dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2b will be described below. However, the same intervals as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is simplified for the intervals L7, L4, L102, and L103.

Between the mode door 30 (second door) and the case member 2a, there is an interval L7 similar to that in the first embodiment, and between the mixed door mode door 20 (second door) and the case member 2b, An interval L4 similar to that in the first embodiment exists. Between the mix door 20 and the mode door 30, in addition to the interval L102 and the interval L103 similar to those in the first embodiment, the outer surface of the side wall 22b of the mix door 20 and the other 31b of the second supported portion of the mode door 30 are provided. And an interval L106 between the other first supported portion 31b of the mix door 20 and the second supported portion 31b of the mode door 30 exist. The interval L7 is set smaller than any of the intervals L102, L103, L105, and L106.

Therefore, the interval L6 is equal to the interval L7, and the intervals L6 and L7 are smaller than the intervals L102, L103, L105, and L106 (the size between the intervals L102, L103, L105, and L106 is not important). The distance L10 is equal to the distance L4, and the distances L10 and L4 are smaller than the distances L102, L103, L105, and L106 (the sizes of the distances L102, L103, L105, and L106 are not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 19), the first of the second embodiment. Like the example and the second example, since the interval L10 is smaller than any of the interval L102, the interval L103, the interval L105, and the interval L106, the mix door 20 and the mode door 30 abut in the direction along the rotation axis. There is nothing.

That is, when only the mode door 30 moves so as to contact the case member 2b (move to the right in FIG. 19), only the interval L6 is reduced, and all of the intervals L102, L103, L105, and L106 are reduced. There is no. For this reason, even if the mode door 30 moves to the right side of FIG. 19, the intervals L102, L103, L105, and L106 do not become zero. When only the mix door 20 moves so as to contact the case member 2b, all of the intervals L102, L103, L105, and L106 are reduced. Here, since the interval L10 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the interval L102, the interval L103, the interval L105, and the interval L106 become zero. There is nothing. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the movement amount of the mode door 30 does not affect the mix door 20 even if the interval L10 is smaller than the interval L6. Therefore, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the intervals L102, L103, L105, and L106 are the same as the case where only the mix door 20 moves. All of them shrink, but since the interval L10 is smaller than the intervals L102, L103, and L105, the intervals L102, L103, L105, and L106 do not become zero.

Further, when one or both of the mix door 20 and the mode door 30 move so as to contact the case member 2a (move to the left in FIG. 20), the interval L7 is the interval L102, the interval L103, the interval L105, the interval Since it is smaller than L106, the mix door 20 and the mode door 30 do not contact in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 20), all of the intervals L102, L103, L105, and L106 are reduced. Here, since the interval L7 (the movement range of the mode door 30 in the rotation axis direction) is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the interval L102, the interval L103, the interval L105, and the interval L106 become zero. There is nothing. When only the mix door 20 moves so as to contact the case member 2a, only the interval L4 is reduced, and none of the intervals L102, L103, L105, and L106 is reduced. For this reason, even if the mix door 20 moves to the left side of FIG. 20, the interval L102, the interval L103, the interval L105, and the interval L106 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the movement amount of the mix door 20 does not affect the mode door 30 even if the interval L4 is smaller than the interval L7. For this reason, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the interval L102, the interval L103, the interval L105, and L106 are similar to the case where only the mode door 30 moves. All of them shrink, but since the interval L7 is smaller than the intervals L102, L103, L105, and L106, the intervals L102, L103, L105, and L106 do not become zero.

However, even in the third example of the second embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

case members

doors

20 and 30 are not affected by the rotation of the other door.

doors

20 and 30 in the direction along the rotation axis. A fourth example of the

mechanisms

50a, 50b and 60a, 60b will be described with reference to FIGS.

As shown in FIGS. 22 and 23, the restriction mechanism 50a includes the first door 20 and the case member 2a (first wall) as in the first to third examples of the present embodiment. Therefore, the outer surface of the side wall portion 22a can be brought into contact with the inner surface of the case member 2a. Further, as shown in FIG. 22 and FIG. 23, the restriction mechanism 50b is configured by the first door 20 and the case member 2b (second wall) as in the first to third examples of the present embodiment. Thus, the door extension 51 extending from the outer surface of the side wall 22b toward the case member 2b can be brought into contact. Although not shown, the door extension 51 is an arc extending along the circumferential direction with the other side 21b of the first supported portion as the center point, as in FIG. 15 of the first example and FIG. 18 of the second example. It has a shape.

As shown in FIGS. 22 and 23, the restriction mechanism 60a includes the second door 30 and the case member 2a (first wall), and the side wall portion 32a of the mode door 30 in the case member 2a. A flat stepped surface formed by bending a portion that faces the outer surface of the mix door 20 and is above the first supported portion 21a of the mix door 20 to the case member 2b side of the other portion of the case member 2a. 66. And this level | step difference surface 66 can contact | abut on the outer surface of the side wall part 32a. Further, as shown in FIGS. 22 and 23, the restriction mechanism 60b is configured by the second door 30 and the case member 2b (second wall), and the mode door 30 of the inner surface of the case member 2b. By bending a portion that faces the outer surface of the side wall portion 32b and is above the peripheral wall portion 28b of the first supported portion 21b of the mix door 20 to the case member 2a side than the other portion of the case member 2b. A flat stepped surface 67 is formed. And this level | step difference surface 67 can contact | abut on the outer surface of the side wall part 32b.

Next, referring to FIG. 22, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) The dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2a will be described below. However, the same intervals as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, with the intervals L8, L102, and L103 being the same as those in the first embodiment.

Between the mode door 30 (second door) and the case member 2b, there is an interval L8 similar to that in the first embodiment. A gap L10 exists between the door extension 51 of the mix door 20 (first door) and the inner surface of the case member 2b. The interval L10 is a moving range of the mix door 20 in the rotation axis direction. Between the mix door 20 and the mode door 30, in addition to the interval L102 and the interval L103 similar to those in the first embodiment, the outer surface of the side wall 22b of the mix door 20 and the other 31b of the second supported portion of the mode door 30 are provided. And an interval L106 between the other first supported portion 31b of the mix door 20 and the second supported portion 31b of the mode door 30 exist. The interval L10 is set smaller than any of the intervals L102, L103, L105, and L106.

23, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) A dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2b will be described below. However, the same intervals as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof will be simplified for the intervals L9, L4, L102, and L103.

Between the mode door 30 (second door) and the case member 2a, there is an interval L9 similar to that in the first embodiment, and between the mixed door mode door 20 (second door) and the case member 2b, An interval L4 similar to that in the first embodiment exists. Between the mix door 20 and the mode door 30, in addition to the interval L102 and the interval L102 similar to the first embodiment, the outer surface of the side wall portion 22b of the mix door 20 and the other 31b of the second supported portion of the mode door 30 are provided. And an interval L106 between the other first supported portion 31b of the mix door 20 and the second supported portion 31b of the mode door 30 exist. The interval L9 is set smaller than any of the interval L102, the interval L103, the interval L105, and the interval L106.

Therefore, the distance L8 is equal to the distance L9, and the distances L8 and L9 are smaller than the distances L102, L103, L105, and L106 (the size between the distances L102, L103, L105, and L106 is not important). The distance L10 is equal to the distance L4, and the distances L10 and L4 are smaller than the distances L102, L103, L105, and L106 (the sizes of the distances L102, L103, L105, and L106 are not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 22), the first of the second embodiment. From the example to the third example, since the interval L10 is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the mix door 20 and the mode door 30 can contact in the direction along the rotation axis. Absent.

That is, when only the mode door 30 moves so as to contact the case member 2b (move to the right in FIG. 22), only the interval L8 is reduced, and all of the intervals L102, L103, L105, and L106 are reduced. There is no. For this reason, even if the mode door 30 moves to the right side of FIG. 22, the interval L102, the interval L103, the interval L105, and the interval L106 do not become zero. When only the mix door 20 moves so as to contact the case member 2b, all of the intervals L102, L103, L105, and L106 are reduced. Here, since the interval L10 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the interval L102, the interval L103, the interval L105, and the interval L106 become zero. There is nothing. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the movement amount of the mode door 30 does not affect the mix door 20 even if the interval L10 is smaller than the interval L8. Therefore, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the intervals L102, L103, L105, and L106 are the same as the case where only the mix door 20 moves. All of them shrink, but since the interval L10 is smaller than the intervals L102, L103, and L105, the intervals L102, L103, L105, and L106 do not become zero.

In addition, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2a (move to the left in FIG. 23), the interval L9 is the interval L102, the interval L103, the interval L105, the interval Since it is smaller than L106, the mix door 20 and the mode door 30 do not contact in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 23), all of the intervals L102, L103, L105, and L106 are reduced. Here, since the interval L9 (the movement range of the mode door 30 in the rotation axis direction) is smaller than the interval L102, the interval L103, the interval L105, and the interval L106, the interval L102, the interval L103, the interval L105, and the interval L106 become zero. There is nothing. When only the mix door 20 moves so as to contact the case member 2a, only the interval L4 is reduced, and none of the intervals L102, L103, L105, and L106 is reduced. For this reason, even if the mix door 20 moves to the left side of FIG. 23, the intervals L102, L103, L105, and L106 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the movement amount of the mix door 20 does not affect the mode door 30 even if the interval L4 is smaller than the interval L9. For this reason, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the interval L102, the interval L103, the interval L105, and L106 are similar to the case where only the mode door 30 moves. All of them shrink, but since the interval L9 is smaller than the intervals L102, L103, L105, and L106, the intervals L102, L103, L105, and L106 do not become zero.

However, also in the fourth example of the second embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

case members

doors

20 and 30 are not affected by the rotation of the other door.

24 to 33 show a third embodiment of the door holding structure.

The first supported portion 21a (one of the first supported portions) of the mix door 20 faces the outside of the air conditioning case 2 on the rotation axis from the side wall portion 22a, as shown in FIGS. It is formed by extending in a cylindrical shape. And one side 21a of the 1st supported part is in bearing hole 41 formed in case member 2a of case member 2a (1st wall) and 2b (2nd wall) which air conditioning case 2 counters. It is rotatably supported and has a cylindrical hole 25. Further, the first supported portion 21b (the other of the first supported portions) of the mix door 20 is placed on the outer side of the air conditioning case 2 on the rotation axis from the side wall portion 22b, as shown in FIGS. It is formed by extending in a cylindrical shape. The other 21b of the first supported portion is rotatably supported by a bearing hole 42 formed in the case member 2b of the

case members

2a and 2b facing the air conditioning case 2 and the cylindrical hole 26. It has become.

The cylindrical holes 25 and 26 have a circular shape when viewed from the axial direction, and the inner diameter thereof is larger than the maximum width of the mode door 30 described below, and the supported

portions

21a and 21b It has slit

parts

29 and 30 that extend in the direction along the axis of the

support parts

21a and 21b and communicate with the

cylindrical holes

25 and 26. The width in the direction along the circumferential direction of the supported

portions

21a and 21b of the slit portion 29 (the direction intersecting the direction along the axis) is reduced by the second supported

portions

31a and 31b of the mode door 30 described below. It is slightly larger than the shortest width dimension of the

width portions

36 and 37. Accordingly, after the reduced

width portions

36 and 37 of the second supported

portions

31a and 31b are inserted into the

cylindrical holes

25 and 26 from the slit portion 29 of the supported

portions

21a and 21b, the second supported portion 31a. , 31b can be rotated within the

cylindrical holes

25, 26.

The second supported portion 31a (one of the second supported portions) of the mode door 30 faces the outside of the air conditioning case 2 on the rotation axis from the side wall portion 32a, as shown in FIGS. It is formed by extending. One of the second supported parts 31a is a thin plate-like reduced width part 36 at least in a required range from the side wall part 32a. Further, the second supported portion 31b (the other of the second supported portions) of the mode door 30 is placed on the rotation axis from the side wall portion 32b to the outside of the air conditioning case 2 as shown in FIGS. It is formed by extending towards. Then, the other 31b of the second supported portion is a thin plate-like reduced width portion 37 at least in the required range from the side wall portion 32b. Further, in the third embodiment, the reduced

width portions

36 and 37 extend from the

side wall portion

32a or 32b with the relatively wide side surfaces inclined.

To assemble the mix door 20 and the mode door 30 having such a configuration, as shown in FIGS. 26A and 29A, the first supported

portions

21a and 21b and the second supported The mix door 20 and the mode door 30 are opposed to each other with the

portions

31a and 31b being close to each other. The shortest width portion is aligned with the slit portion 29 of the first supported

portions

21a and 21b, and the reduced

width portions

36 and 37 of the second supported

portions

31a and 31b are moved from the slit portion 29 to the first supported portion 21a. After being inserted into the

cylindrical holes

25 and 26 of 21b, the reduced

width portions

36 and 37 are rotated within the

cylindrical holes

25 and 26, as shown in FIGS. 26 (b) and 29 (b). The mix door 20 and the mode door 30 are temporarily assembled.

Thereafter, although not shown in the drawings, as in the first and second embodiments so far, the mix door 20 and the mode door 30 are brought closer to the rotation axis along the

case members

2a and 2b that are divided into the left and right sides. One side 21a of the supported part is inserted into the bearing hole 41 of the case member 2a, the other part 31b of the second supported part is inserted into the bearing hole 42 of the case member 2b, and the

case members

2a and 2b are combined to form the air conditioning case 2. Configure.

doors

restriction mechanisms

50a, 50b and 60a, 60b will be described with reference to FIGS.

As shown in FIGS. 24 to 26, the restriction mechanism 50a is composed of the first door 20 and the case member 2a (first wall), and the case member of the first supported portion 21a. It has the one side door extension part 52 extended from the end side site | part which protruded outside 2a to the one radial direction outer side (radial direction lower side in this Example) of the said 1st to-be-supported part. And this one side door extension part 52 can contact | abut on the outer surface of the said case member 2a. Further, as shown in FIGS. 24 to 26, the restriction mechanism 50b is configured by the first door 20 and the case member 2b (second wall), and the other of the first supported parts 21b. It has the other side door extension part 53 extended from the site | part which protruded outside the case member 2b to the radial direction outer side (in this embodiment radial direction lower side) of the other 21b of the said 1st supported part. . And this other side door extension part 53 can contact | abut on the outer surface of the said case member 2b.

The restricting mechanism 60a is composed of the second door 30 and the case member 2a (first wall), and the first of the end portions of one end 31a of the second supported portion is outside the case member 2a. A part (extension part 68a) extending from a part protruding further outward than one side 21a of one supported part to a radially outer side (in the radial direction upper side in this embodiment) of one side 31a of the second supported part And a hook-like one-side door extension 68 comprising an extension part 68b extending from the extension part 68a toward the case member 2a. And this one side door extension part 68 can contact | abut on the outer surface of case member 2a. Further, the regulation mechanism 60b is configured by the second door 30 and the case member 2b (second wall), and is outside the case member 2b in the end side portion of the other 31b of the second supported portion. The portion (extension portion) extending from the portion protruding further outward than the other 21b of the first supported portion to the radially outer side (in the radial direction upper side in this embodiment) of the other 31b of the second supported portion. 69a) and an extension part 69b extending from the extension part 69a toward the case member 2b. And this other side door extension part 69 can contact | abut on the outer surface of the case member 2b.

Next, referring to FIG. 24, the mix door 20 (first door), the mode door 30 (second door), the case member 2b (first wall), and the case member 2b (second wall) The dimensional relationship in a state where the mix door 20 and the mode door 30 are in contact with the case member 2b will be described below. However, the same intervals as in the first and second embodiments are denoted by the same reference numerals as the interval L102 and the first and second embodiments, and the same intervals as in the second embodiment are the same as the interval L105 and the second embodiment. The same reference numerals are used to simplify the description.

A space L11 exists between the other side door extension 69 of the mode door 30 (second door) and the outer surface of the case member 2b. The interval L11 is a movement range of the mode door 30 in the direction of the rotation axis. A gap L12 exists between the other side door extension 53 of the mix door 20 (first door) and the outer surface of the case member 2b. The interval L12 is a moving range of the mix door 20 in the rotation axis direction. Between the mix door 20 and the mode door 30, the distance L102 similar to the first and second embodiments, the same distance L105 as the second embodiment, and the other 31b of the first supported portion of the mix door 20 and the mode There is an interval L107 between the door 30 and the other side door extension 69, and an interval L108 between the first supported portion 31a of the mix door 20 and the one side door extension 69 of the mode door 30. The interval L11 is set smaller than any of the interval L102, the interval L1105, the interval L1107, and the interval L108. The interval L12 is set smaller than any of the interval L102, the interval L105, the interval L107, and the interval L108.

Next, referring to FIG. 25, the mix door 20 (first door), the mode door 30 (second door), the case member 2b (first wall), and the case member 2b (second wall) The dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2a will be described below. However, the same intervals as in the first and second embodiments are denoted by the same reference numerals as the interval L102 and the first and second embodiments, and the same intervals as in the second embodiment are the same as the interval L105 and the second embodiment. The same reference numerals are used to simplify the description.

A space L13 exists between the one side door extension 68 of the mode door 30 (second door) and the outer surface of the case member 2a. The interval L13 is a moving range of the mode door 30 in the rotation axis direction, and is equal to the interval L11. A gap L14 exists between the one-side door extension 52 of the mix door 20 (first door) and the outer surface of the case member 2a. The interval L14 is a moving range of the mix door 20 in the rotation axis direction, and is equal to the interval L12. Between the mix door 20 and the mode door 30, the distance L102 similar to the first and second embodiments, the same distance L105 as the second embodiment, and the other 31b of the first supported portion of the mix door 20 and the mode There is an interval L107 between the door 30 and the other side door extension 69, and an interval L108 between the first supported portion 31a of the mix door 20 and the one side door extension 69 of the mode door 30. The interval L13 is set smaller than any of the interval L102, the interval L1105, the interval L1107, and the interval L108. The interval L14 is set smaller than any of the interval L102, the interval L105, the interval L107, and the interval L108.

Therefore, the interval L11 is equal to the interval L13, and the intervals L11 and L13 are smaller than the intervals L102, L103, L105, L107, and L108 (the size between the intervals L102, L103, L105, L107, and L108 is not important). It is in. The distance L12 is equal to the distance L14, and the distances L12 and L14 are smaller than the distances L102, L103, L105, L107, and L108 (the sizes of the distances L102, L103, L105, L107, and L108 are irrelevant). .

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the left in FIG. 24), the interval L11 is the interval L102. Since the distance L12 is smaller than the distance L107 and the distance L12 is smaller than the distance L105 and the distance L108, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moves to the left in FIG. 24), the interval L102 and the interval L107 are reduced, and the interval L105 and the interval L108 are increased. Here, since the distance L11 (the movement range of the mode door 30 in the rotation axis direction) is smaller than the distance L102 and the distance L107, the distances L102 and L107 do not become zero. When only the mix door 20 moves so as to contact the case member 2b, the interval L102 and the interval L107 are widened, and the interval L105 and the interval L108 are shortened. Here, since the distance L12 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the distance L105 and the distance L108, the distance L105 and the distance L108 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the distance L11 is smaller than the distance L12. Therefore, the movement amount of the mode door 30 is smaller than the mix door 20, and the distance L102 The interval L107 is widened, and the interval L105 and the interval L108 are shortened. Here, since the distance L12 is smaller than the distance L105 and the distance L108, the distance L105 and the distance L108 do not become zero.

Further, when the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a (move to the right in FIG. 25), the interval L13 is smaller than the intervals L105 and L108, and the interval L14 Is smaller than the interval L102 and the interval L107, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (move to the right in FIG. 25), the interval L105 and the interval L108 are reduced, and the interval L102 and the interval L107 are increased. Here, since the distance L13 (the movement range of the mode door 30 in the rotation axis direction) is smaller than the distance L105 and the distance L108, the distances L105 and L108 do not become zero. When only the mix door 20 moves so as to contact the case member 2a, the interval L105 and the interval L108 are widened, and the intervals L102 and L107 are reduced. Here, since the distance L14 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the distance L102, the distances L102 and L107 do not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the distance L13 is smaller than the distance L14. The interval L108 is widened, and the interval L102 and the interval L107 are shortened. Here, since the distance L14 is smaller than the distance L102 and the distance L107, the distance L102 and the distance L107 do not become zero.

However, according to the first example of the third embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

case members

doors

20 and 30 are not affected by the rotation of the other door.

(Second example)
Furthermore, the restriction | limiting comprised suitably by the mix door 20 or the mode door 30, and the case member 2a or the case member 2b for restrict | limiting the movement to the direction along the rotating shaft line of the supported parts 21 and 31 of the

doors

20 and 30. A second example of the

mechanisms

50a, 50b and 60a, 60b will be described with reference to FIGS.

As shown in FIGS. 27 and 28, the restriction mechanism 50a includes the first door 20 and the case member 2a (first wall). It can be contacted. As shown in FIGS. 27 and 28, the restriction mechanism 50b includes the first door 20 and the case member 2b (second wall). It is possible to contact the inner surface.

As shown in FIGS. 27 to 29, the restriction mechanism 60a is configured by the second door 30 and the case member 2a (first wall), from the outer surface of the side wall portion 32a toward the case member 2a. The extended one-side door extension 61 can be brought into contact with the inner surface of the case member 2a. In this embodiment, as shown in FIG. 29, the one-side door extension portion 61 has an arc shape extending along the circumferential direction centering on one side 31a of the second supported portion. Further, as shown in FIG. 27 to FIG. 29, the restriction mechanism 60b is configured by the second door 30 and the case member 2b (second wall), and from the outer surface of the side wall 32b to the case member 2b. The other-side door extension 63 extending toward the inner side of the case member 2b can be brought into contact therewith. In this embodiment, as shown in FIG. 29, the other side door extension portion 63 has an arc shape extending along the circumferential direction with the other end 31b of the second supported portion as a center point.

Next, referring to FIG. 27, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) The dimensional relationship in a state where the mix door 20 and the mode door 30 are in contact with the case member 2a will be described below. However, the intervals similar to those in the first and second embodiments are given the same reference numerals as the intervals L5 and L102, and the first and second embodiments, and the intervals similar to the second embodiment are the intervals L105 and The same reference numerals as those in the second embodiment are assigned to simplify the description.

Between the mode door 30 (second door) and the case member 2b, an interval L5 similar to that in the first and second embodiments exists. Moreover, the space | interval L15 exists between the side wall part 22b of the mix door 20 (1st door), and the inner surface of the case member 2b. The interval L15 is a moving range of the mix door 20 in the rotation axis direction. Between the mix door 20 and the mode door 30, there is an interval L102 similar to the first and second embodiments and an interval L105 similar to the second embodiment. The interval L5 is set smaller than both the interval L102 and the interval L105, and the interval L15 is set smaller than both the interval L102 and the interval L105.

28, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) A dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2b will be described below. However, the intervals similar to those in the first and second embodiments are given the same reference numerals as the intervals L3 and L102 and the first and second embodiments, and the intervals similar to those in the second embodiment are the intervals L105 and L105. The same reference numerals as those in the second embodiment are assigned to simplify the description.

Between the mode door 30 (second door) and the case member 2a, an interval L3 similar to that in the first and second embodiments exists. Further, a gap L4 similar to that in the first and second embodiments exists between the mix door 20 (first door) and the case member 2a. Between the mix door 20 and the mode door 30, there is an interval L102 similar to the first and second embodiments and an interval L105 similar to the second embodiment. The interval L3 is set smaller than both the interval L102 and the interval L105, and the interval L4 is set smaller than both the interval L102 and the interval L105.

Therefore, the distance L5 is equal to the distance L3, and the distances L5 and L3 are smaller than the distances L102 and L105 (the size between the distances L102 and L105 is not important). The distance L15 is equal to the distance L4, and the distances L15 and L4 are smaller than the distances L102 and L105 (the size between the distances L102 and L105 is not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 27), the interval L5 is greater than the interval L105. Since the distance L15 is smaller than the distance L102, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moved to the right in FIG. 27), the interval L105 is reduced and the interval L102 is increased. Here, since the distance L5 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the distance L105, the distance L105 does not become zero. When only the mix door 20 moves so as to contact the case member 2b, the interval L105 widens and the interval L102 shrinks. Here, since the interval L15 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the interval L102, the interval L102 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the distance L5 is smaller than the distance L15. Therefore, the movement amount of the mode door 30 is smaller than that of the mix door 20, and the distance L105 Increases and the interval L102 decreases. Here, since the interval L15 is smaller than the interval L102, the interval L102 does not become zero.

When one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 28), the interval L3 is smaller than the interval L102, and the interval L4 is the interval. Since it is smaller than L105, the mix door 20 and the mode door 30 do not contact in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moved to the left in FIG. 28), the interval L102 is reduced and the interval L105 is increased. Here, since the distance L3 (the movement range of the mode door 30 in the rotation axis direction) is smaller than the distance L102, the distance L102 does not become zero. When only the mix door 20 moves so as to contact the case member 2a, the interval L102 increases and the interval L105 decreases. Here, since the interval L4 (the movement range of the mix door 20 in the direction of the rotation axis) is smaller than the interval L105, the interval L105 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the distance L3 is smaller than the distance L4. Increases and the interval L105 decreases. Here, since the interval L4 is smaller than the interval L105, the interval L105 does not become zero.

However, even in the second example of the third embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

case members

doors

20 and 30 are not affected by the rotation of the other door.

doors

20 and 30 in the direction along the rotation axis. A third example of the

restriction mechanisms

50a and 50b and 60a and 60b will be described with reference to FIGS.

As shown in FIGS. 30 and 31, the restriction mechanism 50 a is configured by the first door 20 and the case member 2 a (first wall) as in the second example of the present embodiment. The outer surface of the portion 22a can be brought into contact with the inner surface of the case member 2a. Further, as shown in FIGS. 30 and 31, the regulating mechanism 50b is configured by the first door 20 and the case member 2b (second wall), as in the second example of the present embodiment. The outer surface of the side wall portion 22a can contact the inner surface of the case member 2b.

As shown in FIGS. 30 and 31, the restriction mechanism 60 a is configured by the second door 30 and the case member 2 a (first wall), and faces the second door 30 from the inner surface of the case member 2 a. The one side wall extending portion 64 extending so as to be able to abut on the outer surface of the side wall portion 32 a of the second door 30. On the other hand, the side wall extending portion 64 is not particularly illustrated, but has an arc shape extending along the circumferential direction with the bearing hole 41 as the center point, similarly to the one side wall extending portion 64 shown in FIG. ing. Further, as shown in FIGS. 30 and 31, the restriction mechanism 60 b is configured by the second door 30 and the case member 2 b (second wall), and the second door 30 extends from the inner surface of the case member 2 b. The other side wall extending portion 65 extending toward the side can be brought into contact with the outer surface of the side wall portion 32 b of the second door 30. Although not particularly illustrated, the other side wall extending portion 65 has an arc shape extending along the circumferential direction with the bearing hole 42 as the center point, similarly to the other side wall extending portion 65 shown in FIG. ing.

Next, referring to FIG. 30, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) The dimensional relationship in a state where the mix door 20 and the mode door 30 are in contact with the case member 2a will be described below. However, the same intervals as in the first and second embodiments are denoted by the same reference numerals as the first and second embodiments, and the same interval as that of the first and second embodiments. The same reference numerals as those in the second embodiment are assigned to simplify the description.

Between the mode door 30 (second door) and the case member 2b, an interval L6 similar to that in the first and second embodiments exists. Further, a gap L15 exists between the side wall portion 22b of the mix door 20 and the inner surface of the case member 2b. The interval L15 is a moving range of the mix door 20 in the rotation axis direction. Between the mix door 20 and the mode door 30, there is an interval L102 similar to the first and second embodiments and an interval L105 similar to the second embodiment. The interval L6 is set smaller than both the interval L102 and the interval L105, and the interval L15 is set smaller than both the interval L102 and the interval L105.

In addition, referring to FIG. 31, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) A dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2b will be described below. However, the same intervals as those in the first and second embodiments are the same as the intervals L7, L4, and L102, and the same symbols as those in the first and second embodiments. L105 and the code | symbol common with Example 2 are attached | subjected, and the description is simplified.

Between the mode door 30 (second door) and the case member 2a, an interval L7 similar to that in the first and second embodiments exists. Further, a gap L4 similar to that in the first and second embodiments exists between the mix door 20 (first door) and the case member 2a. Between the mix door 20 and the mode door 30, there is an interval L102 similar to the first and second embodiments and an interval L105 similar to the second embodiment. The interval L7 is set smaller than both the interval L102 and the interval L105, and the interval L4 is set smaller than both the interval L102 and the interval L105.

Therefore, the distance L6 is equal to the distance L7, and the distances L6 and L7 are smaller than the distances L102 and L105 (the size between the distances L102 and L105 is not important). The distance L15 is equal to the distance L4, and the distances L15 and L4 are smaller than the distances L102 and L105 (the size between the distances L102 and L105 is not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 30), the interval L6 is greater than the interval L105. Since the distance L15 is smaller than the distance L102, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 30), the interval L105 is reduced and the interval L102 is increased. Here, since the interval L6 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the interval L105, the interval L105 does not become zero. When only the mix door 20 moves so as to contact the case member 2b, the interval L105 widens and the interval L102 shrinks. Here, since the interval L15 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the interval L102, the interval L102 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the distance L6 is smaller than the distance L15. Increases and the interval L102 decreases. Here, since the interval L15 is smaller than the interval L102, the interval L102 does not become zero.

When one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 31), the interval L7 is smaller than the interval L102, and the interval L4 is the interval. Since it is smaller than L105, the mix door 20 and the mode door 30 do not contact in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 31), the interval L102 is reduced and the interval L105 is increased. Here, since the distance L7 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the distance L102, the distance L102 does not become zero. When only the mix door 20 moves so as to contact the case member 2a, the interval L102 increases and the interval L105 decreases. Here, since the interval L4 (the movement range of the mix door 20 in the direction of the rotation axis) is smaller than the interval L105, the interval L105 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the distance L7 is smaller than the distance L4. Increases and the interval L105 decreases. Here, since the interval L4 is smaller than the interval L105, the interval L105 does not become zero.

However, also in the third example of the third embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

31 a and 31 b is applied to the contact between the mix door 20 and the mode door 30. Regardless, since it is performed only by contact with the extending

portions

64 and 65 of the

case members

doors

20 and 30 are not affected by the rotation of the other door.

doors

20 and 30 in the direction along the rotation axis. A fourth example of the

mechanisms

50a, 50b and 60a, 60b will be described with reference to FIGS.

As shown in FIGS. 32 and 33, the restriction mechanism 50a includes the first door 20 and the case member 2a (first wall) as in the second and third examples of the present embodiment. Therefore, the outer surface of the side wall portion 22a can be brought into contact with the inner surface of the case member 2a. Further, as shown in FIGS. 32 and 33, the restriction mechanism 50b includes the first door 20 and the case member 2b (second wall) as in the second and third examples of the present embodiment. Thus, the outer surface of the side wall 22a can be brought into contact with the inner surface of the case member 2b.

As shown in FIGS. 32 and 33, the regulating mechanism 60a includes the second door 30 and the case member 2a (first wall). The restricting mechanism 60a is configured so that the portion of the case member 2a that faces the outer surface of the side wall portion 32a of the mode door 30 and that is above the first supported portion 21a of the mix door 20 is the other portion of the case member 2a. A flat stepped surface 66 is formed by bending the portion closer to the case member 2b. The stepped surface 66 can be brought into contact with the outer surface of the side wall 32a. Further, as shown in FIG. 32 and FIG. 33, the restriction mechanism 60b includes the second door 30 and the case member 2b (second wall). And the control mechanism 60b opposes the outer surface of the side wall part 32b of the mode door 30 among the inner surfaces of the case member 2b, and is located above the peripheral wall part 28b of the first supported part 21b of the mix door 20. A flat stepped surface 67 is formed by bending the other part of the case member 2b toward the case member 2a, and the stepped surface 67 can be brought into contact with the outer surface of the side wall 32b.

Next, referring to FIG. 32, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) The dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2a will be described below. However, the same intervals as in the first and second embodiments are denoted by the same reference numerals as the first and second embodiments, and the same interval as that of the first and second embodiments. The same reference numerals as those in the second embodiment are used to simplify the description.

Between the mode door 30 (second door) and the case member 2b, an interval L8 similar to that in the first and second embodiments exists. Moreover, the space | interval L15 exists between the side wall part 22b of the mix door 20 (1st door), and the inner surface of the case member 2b. The interval L15 is a moving range of the mix door 20 in the rotation axis direction. Between the mix door 20 and the mode door 30, there is an interval L102 similar to the first and second embodiments and an interval L105 similar to the second embodiment. The interval L8 is set smaller than both the interval L102 and the interval L105, and the interval L15 is set smaller than both the interval L102 and the interval L105.

33, the mix door 20 (first door), the mode door 30 (second door), the case member 2a (first wall), and the case member 2b (second wall) A dimensional relationship in the state where the mix door 20 and the mode door 30 are in contact with the case member 2b will be described below. However, the same intervals as in the first and second embodiments are the same as the intervals L9, L4, and L102, and the same symbols as those in the first and second embodiments. L105 and the code | symbol common with Example 2 are attached | subjected, and the description is simplified.

Between the mode door 30 (second door) and the case member 2a, an interval L9 similar to that in the first and second embodiments exists. Further, a gap L4 similar to that in the first and second embodiments exists between the mix door 20 (first door) and the case member 2a. Between the mix door 20 and the mode door 30, there is an interval L102 similar to the first and second embodiments and an interval L105 similar to the second embodiment. The interval L9 is set smaller than both the interval L102 and the interval L105, and the interval L4 is set smaller than both the interval L102 and the interval L105.

Therefore, the distance L8 is equal to the distance L9, and the distances L8 and L9 are smaller than the distances L102 and L105 (the size between the distances L102 and L105 is not important). The distance L15 is equal to the distance L4, and the distances L15 and L4 are smaller than the distances L102 and L105 (the size between the distances L102 and L105 is not important).

Because of such a dimensional relationship, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 32), the interval L8 is greater than the interval L105. Since the distance L15 is smaller than the distance L102, the mix door 20 and the mode door 30 do not contact each other in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2b (moves to the right in FIG. 32), the interval L105 is reduced and the interval L102 is increased. Here, since the distance L8 (the movement range of the mode door 30 in the direction of the rotation axis) is smaller than the distance L105, the distance L105 does not become zero. When only the mix door 20 moves so as to contact the case member 2b, the interval L105 widens and the interval L102 shrinks. Here, since the interval L15 (the movement range of the mix door 20 in the rotation axis direction) is smaller than the interval L102, the interval L102 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2b, the distance L8 is smaller than the distance L15. Increases and the interval L102 decreases. Here, since the interval L15 is smaller than the interval L102, the interval L102 does not become zero.

Further, when one or both of the mix door 20 and the mode door 30 moves so as to contact the case member 2a (move to the left in FIG. 33), the interval L9 is smaller than the interval L102, and the interval L4 is the interval. Since it is smaller than L105, the mix door 20 and the mode door 30 do not contact in the direction along the rotation axis.

That is, when only the mode door 30 moves so as to contact the case member 2a (moves to the left in FIG. 33), the interval L102 is reduced and the interval L105 is increased. Here, since the distance L9 (the movement range of the mode door 30 in the rotation axis direction) is smaller than the distance L102, the distance L102 does not become zero. When only the mix door 20 moves so as to contact the case member 2a, the interval L102 increases and the interval L105 decreases. Here, since the interval L4 (the movement range of the mix door 20 in the direction of the rotation axis) is smaller than the interval L105, the interval L105 does not become zero. When the mix door 20 and the mode door 30 move so as to contact each other with respect to the case member 2a, the distance L9 is smaller than the distance L4. Therefore, the movement amount of the mode door 30 is smaller than the mix door 20, and the distance L102 Increases and the interval L105 decreases. Here, since the interval L4 is smaller than the interval L105, the interval L105 does not become zero.

However, also in the fourth example of the third embodiment, the restriction on the movement of the mode door 30 in the direction along the rotation axis of the second supported

portions

31 a and 31 b is applied to the contact between the mix door 20 and the mode door 30. Regardless, since it is performed only by contact with the step surfaces 66 and 67 of the

case members

doors

20 and 30 are not affected by the rotation of the other door.

With respect to the configuration of the mix door 20, in FIG. 4 and the like, the pair of first supported

portions

21a and 21b disposed on the same rotation axis and substantially perpendicular to the supported

portions

21a and 21b are provided. Although illustrated and explained as a rotary door having a pair of

side wall portions

22a and 22b and a closing portion 23 connecting between the pair of

side wall portions

22a and 22b, it is not necessarily limited to this. Although not shown, a plate door including a supported portion having the same configuration as the supporting

portions

21a and 21b and a plate-like portion extending substantially parallel to the axis of the supported portion may be used. And even if it is the mix door 20 which is such a plate door, although not shown in figure, the

regulation mechanisms

50a and 50b are comprised with the

case member

2a or 2b.

The same applies to the mode door 30. In FIG. 4 and the like, the pair of first supported

portions

31a and 31b disposed on the same rotation axis and the first supported

portions

31a and 31b. Although illustrated and described as a rotary door configured to include a pair of

side wall portions

32a and 32b extending substantially vertically and a closing portion 33 connecting between the pair of

side wall portions

32a and 32b. It is not necessarily limited to this. Although not shown, it may be a plate door including a supported portion having the same configuration as the first supporting

portions

31a and 31b and a plate-like portion extending substantially parallel to the axis of the supported portion. . And even if it is the mode door 30 which is such a plate door, although not shown in figure, the one side door extension part 61 and the other side door extension part 62 are provided in the surface which faces the supported part and

case members

2a and 2b. The one side door extension part 63 and the other side door extension part 64 are appropriately provided, the one side wall extension part 64 and the other side wall extension part 65 are provided on the

case members

2a and 2b, and the

case members

2a and 2b. By providing the step surfaces 66 and 67, although not shown, the

regulation mechanisms

60a and 60b can be configured with the

case member

2a or 2b.

DESCRIPTION OF SYMBOLS 1 Air conditioning unit 2 Air conditioning case 2a Case member (1st wall)
2b Case member (second wall)
DESCRIPTION OF SYMBOLS 3 Air introduction space 4 Inlet 5 First blow passage 6 Second blow passage 7 Evaporator 8 Heater core 9 Partition wall 10 Bypass passage 11 Hot air passage 12 Mix space 13 Defrost blow opening 14 Vent blow opening 15 Foot blow opening 20 Mix door ( 1st door)
21a One of the first supported parts 21b The other of the first supported parts 22a Side wall part 22b Side wall part 23 Closed part 25 Cylinder hole 26 Cylinder hole 30 Mode door (second door)
31a One of the second supported parts 31b The other of the second supported parts 32a Side wall part 32b Side wall part 33 Closure part 35 Cylindrical hole 41 Bearing hole 42 Bearing hole 50a Mix door restriction mechanism 50b Mix door restriction mechanism 51 Mix Door extension part of door 52 One side door extension part of mix door 53 Other side door extension part of mix door 60a Mode door regulation mechanism (first regulation mechanism)
60b Mode door restriction mechanism (second restriction mechanism)
61 One-side door extension part of mode door 62 Other-side door extension part of mode door 63 Other-side door extension part of mode door 64 One side wall extension part of case member 65 Other side wall extension part of case member 66 Case Step surface of member 67 Step surface of case member 68 One side door extension part of mode door 69 Other side door extension part of mode door

Claims

A first door having a first supported portion forming a pair and a second door having a second supported portion forming a pair, between the first wall and the second wall facing each other; A vehicle air conditioner door holding structure in which the first door and the second door are arranged,
One of the first supported parts is rotatably supported by the first wall,
One of the second supported parts is rotatably supported by the first supported part,
The other of the first supported portion and the other of the second supported portion are rotatably supported by the second wall or rotated by the supported portion supported by the second wall. Supported as possible,
The first supported part and the second supported part are rotatable on the same rotation axis,
In the door holding structure in which the movement of the first door in the direction along the rotation axis is regulated by the first door being in contact with the first wall and the second wall.
The second door and the first wall constitute a first restriction mechanism,
The second door and the second wall constitute a second restriction mechanism,
The movement of the second door in the direction along the rotation axis is restricted by the first restriction mechanism and the second restriction mechanism. A door holding structure for a vehicle air conditioner.
The movement of the second door in the direction along the rotational axis is as follows:
A first restricting mechanism configured by a first door extending portion extending from the second door and capable of contacting the first wall; and the first wall;
Restricted by at least one of the second-side door extending portion that extends from the second door and can come into contact with the second wall, and the second restricting mechanism configured by the second wall. The door holding structure for a vehicle air conditioner according to claim 1.
The other of the second supported parts is supported by the second wall,
The movement of the second door in the direction along the rotation axis is restricted by the second restriction mechanism configured by at least the other side door extension portion and the second wall,
The door holding structure for a vehicle air conditioner according to claim 2, wherein the other side door extension portion extends in a direction substantially perpendicular to the rotation axis from the other of the second supported portions. .
The movement of the second door in the direction along the rotational axis is as follows:
A first restricting mechanism configured by the second door and one side wall extending portion that extends from the first wall and can come into contact with the second door;
Restricted by at least one of the second door and a second restricting mechanism constituted by the other side wall extending portion that extends from the second wall and can come into contact with the second door. The door holding structure for a vehicle air conditioner according to claim 1.
The movement of the second door in the direction along the rotational axis is as follows:
A first regulating mechanism configured by the second door and a step surface of the first wall that is closer to the second wall than the surface facing the first door of the first wall;
At least one of the second door and a second regulating mechanism configured by the other side step surface closer to the first wall than the surface facing the first door among the second walls. The door holding structure for a vehicle air conditioner according to claim 1, wherein the door holding structure is restricted by the above.
One of the paired first supported parts is rotatably supported by a first bearing hole formed in the first wall,
The other of the pair of second supported parts is rotatably supported in a second bearing hole formed in the second wall;
The other of the first supported parts is supported by a door support part formed on the second wall, and is rotatable about the axis of the second bearing hole. The second supported part The other of the has a slit portion that can be inserted,
One of the second supported parts is rotatably supported on one inner diameter side or outer diameter side of the first supported part. The door holding structure of the vehicle air conditioner described in 1.
One of the first supported parts is rotatably supported by a first bearing hole formed in the first wall,
The other of the second supported parts is rotatably supported in a second bearing hole formed in the second wall,
One of the second supported portions is supported by one of the first supported portions along a perpendicular line from the first bearing hole, and is rotatable about the axis of the first bearing hole. Yes,
The other of the first supported parts is supported along the perpendicular from the second bearing hole to the other of the second supported parts, and is rotatable about the axis of the second bearing hole. The door holding structure for a vehicle air conditioner according to any one of claims 1 to 5, wherein the door holding structure is provided.
One of the first supported parts is rotatably supported by a first bearing hole formed in the first wall,
The other of the first supported parts is rotatably supported by a second bearing hole formed in the second wall,
One of the second supported portions is supported on one inner diameter side or outer diameter side of the first supported portion, and is rotatable about the axis of the first bearing hole,
The other of the second supported parts is supported on the other inner diameter side or outer diameter side of the first supported part, and is rotatable about the axis of the second bearing hole. The door holding structure for a vehicle air conditioner according to any one of claims 1 to 5.
The first door and the second door include a pair of side wall portions that extend substantially perpendicular to each supported portion, and a closing portion that connects between the pair of side wall portions. It is a rotary type door. The door holding structure of the vehicle air conditioner in any one of Claim 1 to 8 characterized by the above-mentioned.
The said 1st door and the said 2nd door are plate doors provided with the plate-shaped part extended substantially parallel with respect to the axis line of each to-be-supported part, Any one of Claim 1 to 8 characterized by the above-mentioned. A vehicle air conditioner door holding structure according to claim 1.
The first wall and the second wall are part of an air conditioning case in which an air flow path is formed,
The vehicle air conditioner according to any one of claims 1 to 10, wherein the first door and the second door are arranged in the air flow path.