JP2018103692A - Air conditioning duct device for vehicles - Google Patents

Abstract

An object of the present invention is to provide a vehicular air conditioning duct system capable of increasing the mounting rigidity of a duct to an interior panel and reducing its weight without increasing the number of parts. A vehicle air conditioning duct system (10) mounted on a vehicle includes a side face duct (20) and a side defroster duct (30), and the side defroster duct (30) connects the side defroster duct (30) to the side face duct (20). The connecting arm 36 has an extending portion 38 extending from a connecting portion 37 with the side face duct 20 toward the instrument panel 2 as an interior panel. serves as a mounting seat for the side face duct 20 with respect to the instrument panel 2 . [Selection drawing] Fig. 2

Description

  The present invention relates to an air conditioning duct device mounted on a vehicle.

  Patent Document 1 below discloses an example of this type of air conditioning duct device. This air conditioning duct device includes an air conditioning duct for supplying conditioned air generated by the air conditioning unit into the passenger compartment. The air conditioning duct includes a plurality of resin ducts formed by blow molding or the like. Among these plurality of ducts, the face duct is a duct that blows conditioned air toward the passenger, and the defroster duct is a duct that blows conditioned air toward the window glass. The face duct is configured to be attached to the instrument panel in an integrated state with the defroster duct.

  Patent Document 2 below discloses an air-conditioning duct mounting structure. This mounting structure is for mounting a foot duct (hereinafter simply referred to as a “duct”) that blows air-conditioned air toward the feet of an occupant to a member on the instrument panel side. In this mounting structure, the duct includes a plate-like fixed piece integrally formed with the duct at the time of blow molding. This duct is configured to be fixed to the front panel on the instrument panel side by a fixed piece.

JP 2011-156974 A JP 2012-71650 A

  In order to attach the face duct disclosed in Patent Document 1 to the instrument panel, the mounting structure disclosed in Patent Document 2 can be employed. When this mounting structure is adopted, when the face duct is blow-molded, the duct and the fixing piece are formed integrally, and the fixing piece is used as a mounting seat for the instrument panel. This attachment structure is effective for attaching the face duct to the instrument panel without using another member other than the duct.

In the above mounting structure, it is preferable to increase the rigidity of the fixed piece itself in order to increase the mounting rigidity of the face duct to the instrument panel. For this purpose, it is conceivable to increase the plate thickness of the fixed piece.
However, in the case of blow molding, when the plate thickness of the fixed piece is increased, the rigidity of the fixed piece is increased, but there is a problem that the thickness of the entire face duct increases and becomes heavy due to the influence. However, if the thickness of the entire face duct is reduced, the weight can be reduced. Is difficult. Further, if the fixed piece is made of another member other than the duct, it is disadvantageous because the number of parts increases.
The above-described problems can occur not only for the installation of the face duct but also for the installation of other air conditioning ducts.

  The present invention has been made in view of such a problem, and intends to provide an air conditioning duct device for a vehicle that can increase the rigidity of mounting the duct to the interior panel and reduce the weight thereof without increasing the number of parts. It is.

One embodiment of the present invention provides:
An air conditioning duct device for a vehicle mounted on a vehicle,
A first duct which is attached to the interior panel and guides the conditioned air to the first outlet provided in the interior panel;
A second duct for guiding conditioned air to a second outlet provided in the interior panel adjacent to the first outlet;
With
The second duct includes a connecting arm for connecting the second duct to the first duct, and the connecting arm extends from a connecting portion with the first duct toward the interior panel. A vehicle air-conditioning duct device, wherein the extension portion is configured to serve as a mounting seat for the first duct with respect to the interior panel.

According to the above vehicle air-conditioning duct device (hereinafter also simply referred to as “duct device”), the first duct is used for the interior by using the extending portion which is a part of the connecting arm of the second duct as a mounting seat. Can be installed on the panel. At this time, the extension part of the connecting arm of the second duct performs the same function as this mounting seat when it is assumed that the mounting seat is provided on the first duct itself.
Thereby, the attachment rigidity of the 1st duct with respect to an interior panel can be set using the connection arm by the side of the 2nd duct independent of the structure of this 1st duct. Therefore, while the weight of the first duct can be reduced, the rigidity of the first duct attached to the interior panel can be increased by increasing the rigidity of the extending portion of the connecting arm.
Further, since the mounting seat for the first duct can be constructed without using another member other than the existing duct, it is possible to prevent the number of parts of the duct device from increasing.

  As described above, the vehicle air-conditioning duct device according to the above aspect can increase the mounting rigidity of the duct to the interior panel and reduce the weight thereof without increasing the number of parts.

The figure which looked at the instrument panel of the vehicle from the passenger | crew side. The perspective view which looked at the side face duct and the side defroster duct of the air-conditioning duct apparatus for vehicles in FIG. 1 from back diagonally upward. The perspective view which looked at FIG. 2 from back diagonally upward. FIG. 3 is a perspective view showing a state where a side face duct (first duct) and a side defroster duct (second duct) are separated from each other in FIG. 2. FIG. 4 is a perspective view showing a state where a side face duct (first duct) and a side defroster duct (second duct) are separated from each other in FIG. 3. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. Sectional drawing which shows typically the mode at the time of blow molding of a side defroster duct (2nd duct). The figure which looked at the side defroster duct (2nd duct) after blow molding from back.

  Preferred embodiments of the above aspects are described below.

  In the duct device, it is preferable that the extension portion of the connection arm is configured as a plate-like piece having a plate thickness that exceeds the thickness of the first duct.

  According to this duct device, the thickness of the first duct can be reduced by reducing the thickness thereof, while the thickness of the extending portion of the connecting arm is increased from the thickness of the first duct, thereby reducing the first duct. Regardless of the thickness, the rigidity of the extension can be increased.

  In the duct apparatus, the connection arm is preferably configured such that the connection portion is connected to an opening edge portion of a blowout opening that opens toward the first blowout port in the first duct. .

  According to this duct device, the first duct is attached to the interior panel in the vicinity of the blowout opening by connecting the connecting arm of the second duct to the opening edge of the first duct. For this reason, the wobble of the 1st duct in the state attached to the interior panel can be suppressed, and the attachment stability of the 1st duct can be secured.

  In the duct apparatus, the second duct is a blow molded product made of a resin material, and the connecting arm is preferably constituted by a crushed portion formed by crushing the resin material during blow molding.

  According to this duct apparatus, since the thickness of the crushing part in the blow molded product exceeds the thickness of the second duct, it is possible to increase the rigidity of the extending part of the connecting arm without increasing the weight of the entire second duct. In this case, the extending part of the connecting arm can be easily set to a desired thickness.

In the duct apparatus, the connection arm includes a hinge portion in which the resin material is thinned at the time of blow molding of the second duct,
The external dimension of the second duct is variable by rotating between an initial position and a connecting position when the connecting arm is connected to the first duct, with the connecting arm passing through the hinge portion as a rotation center line. The outer dimensions are preferably configured to be larger when the connecting arm is in the connecting position than when the connecting arm is in the initial position.

  According to this duct apparatus, the second duct, which is a blow-molded product, is connected to the first duct in a state where the connecting arm is rotated from the initial position to the connecting position via the hinge portion, that is, in a state where the outer dimension is increased. Connected. For this reason, the external dimension at the time of blow molding of the second duct may be smaller than the external dimension at the time of connection that is actually connected to the first duct. Therefore, the size of the mold used for blow molding of the second duct can be kept small, and the equipment cost required for the mold can be reduced.

  In the duct device, the second duct is a small duct having a flow passage cross-sectional area of the conditioned air lower than the first duct, and a part of the conditioned air flowing from the first duct and flowing through the first duct. Is preferably configured to guide the air to the second air outlet.

  According to this duct device, since the mounting seat for the first duct may be provided in the second duct that is smaller than the first duct, the molding operation is less than when the mounting seat is provided in the first duct itself. Easy to do.

(Embodiment)
Hereinafter, an embodiment of a vehicle air-conditioning duct device (hereinafter simply referred to as a “duct device”) will be described with reference to the drawings.

  In the drawings for explaining the duct device, the forward direction is indicated by an arrow FR, the upper side is indicated by an arrow UP, the right side is indicated by an arrow R, and the left side is indicated by an arrow L unless otherwise specified. In addition, each of these directions in this duct apparatus corresponds with the said direction in a vehicle.

  As shown in FIG. 1, the duct device 10 is mounted on the vehicle 1 and has a function of supplying conditioned air generated by an air conditioning unit (not shown) into the vehicle compartment through a plurality of ducts. The duct device 10 is covered with an interior panel 2 provided in the front part of the passenger compartment.

  The interior panel 2 is an instrument panel on which various instruments are arranged. The interior panel 2 is provided with a center face air outlet 3, a center defroster air outlet 4, side face air outlets 5 and 6, and side defroster air outlets 7 and 8.

  The center face outlet 3 is for blowing conditioned air toward the front seat occupant, and is provided at the center in the left-right direction of the occupant facing surface 2a of the interior panel 2. The center defroster outlet 4 is for blowing the conditioned air toward the front glass, and is provided at the center in the left-right direction of the upper surface 2 b of the interior panel 2. The side face outlets 5 and 6 are for blowing conditioned air toward the front seat occupant, and are provided at the left end and the right end of the occupant facing surface 2a of the interior panel 2, respectively. The side defroster air outlets 7 and 8 are for blowing conditioned air toward the side glass, and are provided adjacent to the side face air outlets 5 and 6 on the outside thereof.

  The duct device 10 includes a side face duct 20 and a side defroster duct 30. The side face duct 20 is a duct that is attached to the interior panel 2 and guides the conditioned air to the side face outlet 6 on the driver's seat provided in the interior panel 2. The side face duct 20 is also provided for the side face outlet 5 on the passenger seat side. The side defroster duct 30 is a duct for guiding the conditioned air to the side defroster outlet 8 on the driver's seat side provided in the interior panel 2 adjacent to the side face outlet 6. The side defroster duct 30 is also provided for the side defroster outlet 7 on the passenger seat side.

  In the following description, for convenience, the side face duct 20 is referred to as a “first duct 20” and the side defroster duct 30 is referred to as a “second duct 30”. Further, the side face outlet 6 is referred to as “first outlet 6”, and the side defroster outlet 8 is referred to as “second outlet 8”. Further, the structure of the duct is bilaterally symmetric between the driver seat side and the passenger seat side, and only the first duct 20 and the second duct 30 on the driver seat side will be described here.

  As shown in FIGS. 2 and 3, the first duct 20 includes a cylindrical main body portion 21, an outlet opening 22 that opens toward the first outlet 6 on one end side of the main body portion 21, and the main body portion 21. And a branch opening 24 that opens at a portion upstream of the blowout opening 22.

  The first duct 20 is configured such that the outlet opening 22 is disposed opposite to the first outlet 6 and the second duct 30 is attached to the opening edge 25 of the branch opening 24. For this reason, the conditioned air generated by the air conditioning unit (not shown) and supplied to the upstream side of the main body 21 is guided to the first outlet 6 after flowing through the main body 21 toward the outlet opening 22. While it blows out from this 1st blower outlet 6, the one part branches from the branch opening 24, and flows into the 2nd duct 30. FIG.

  The second duct 30 includes a cylindrical main body 31, a blowout opening 32 that opens toward the second outlet 8 on one end side of the main body 31, an opening on the other end side of the main body 31, and the first duct. An inflow opening 34 communicating with the twenty branch openings 24 and a connecting arm 36 are provided.

  The second duct 30 has its outlet opening 32 opposed to the second outlet 8 and the opening edge 35 of the inflow opening 34 is fitted into the opening edge 25 of the first duct 20. It is configured to be attached to. For this reason, the conditioned air that has branched from the first duct 20 to the second duct 30 is guided to the second air outlet 8 and blows out from the second air outlet 8.

  The second duct 30 is a smaller duct than the first duct 20, and the flow path cross-sectional area S <b> 2 in the cylinder of the main body portion 31 is equal to the flow path cross-sectional area S <b> 1 in the cylinder of the main body portion 21 of the first duct 20. It is configured to be lower. For this reason, the conditioned air flowing through the main body 21 of the first duct 20 mainly flows to the first outlet 6 through the blowout opening 22 according to the flow path resistance, while the remaining conditioned air is second through the branch opening 24. It flows to the duct 30.

  The connection arm 36 is for connecting the second duct 30 to the first duct 20, and is configured to extend from the main body portion 31 of the second duct 30 toward the first duct 20. The connecting arm 36 includes a connecting portion 37 for connecting to the first duct 20 and an extending portion 38 extending from the connecting portion 37 toward the interior panel 2. That is, the connecting arm 36 extends to the interior panel 2 via the first duct 20.

  The connecting portion 37 of the connecting arm 36 is configured to be connected to the opening edge portion 23 of the outlet opening 22 that opens toward the first outlet 6 in the first duct 20 via a rivet 40 as a fixture. Has been.

  The extending portion 38 of the connecting arm 36 is configured to serve as a mounting seat for the first duct 20 with respect to the interior panel 2 in a state where the connecting portion 37 is connected to the opening edge 23 of the first duct 20. The extension portion 38 is provided with an insertion hole 38a into which a fastening member (not shown) is inserted, and the extension portion 38 is fastened and fixed to the fastened portion 2a of the interior panel 2 via the fastening member. The As a result, the first duct 20 is attached to the interior panel 2.

  As shown in FIG. 4, the connecting arm 36 has a plate thickness d <b> 2 that exceeds the thickness d <b> 1 of the main body 21 of the first duct 20, and the plate thickness of the connecting portion 37 and the extending portion 38 is substantially the same. It is configured as a plate-shaped piece. The extending portion 38 is configured to extend along the opening plane of the blowing opening 22 on the first duct 20 side (a plane defined by both the vertical direction and the horizontal direction).

  The opening edge 23 of the first duct 20 is provided with a connection hole 23a on the right wall thereof and a connection hole 23b on the lower wall thereof. On the other hand, the connecting portion 37 of the connecting arm 36 of the second duct 30 includes a plate-like first connecting piece 37a and a second connecting piece 37b. The first connection piece 37a and the second connection piece 37b are provided with a connection hole 37c and a connection hole 37d, respectively.

  For this reason, when the connecting portion 37 of the connecting arm 36 is connected in a state of being aligned with the opening edge 23 of the first duct 20, the shaft portion of one rivet 40 is inserted into the connecting hole 37c of the first connecting piece 37a. Later, it is inserted into the connecting hole 23a of the opening edge 23 and caulked, and the shaft portion of another rivet 40 is inserted into the connecting hole 37d of the second connecting piece 37b and then inserted into the connecting hole 23b of the opening edge 23. Clamp. As a result, in the connecting portion 37, the first connecting piece 37 a is connected and fixed to the right wall of the opening edge 23 of the first duct 20, and the second connecting piece 37 b is the lower wall of the opening edge 23 of the first duct 20. It is fixed to the link. As a result, the first duct 20 and the second duct 30 are integrated.

  The connecting arm 36 includes a hinge portion 39 that extends linearly in the front-rear direction at the boundary between the first connecting piece 37 a and the second connecting piece 37 b of the connecting portion 37. The hinge portion 39 is a thin portion having a relatively thin plate thickness than other portions, and the resin material is thinned when the second duct 30 is blow-molded. Therefore, the connecting arm 36 is configured to be rotatable with a line passing through the hinge portion 39 as a rotation center line L. The hinge portion 39 is also referred to as “integral hinge”.

  As shown in FIG. 5, the opening edge 25 of the first duct 20 includes an engaging claw 25 a standing on the outer wall surface. On the other hand, the opening edge 35 of the second duct 30 is provided with an engagement recess 35a in which the engagement claw 25a on the first duct 20 side fits on the inner wall surface.

  Therefore, when the second duct 30 is attached so that the opening edge 35 of the second duct 30 covers the opening edge 25 of the first duct 20, the engaging claw 25a on the first duct 20 side is elastic inward from the initial state. It deforms and fits into the engaging recess 35a on the second duct 30 side, and then returns to the initial state (see FIG. 6). At this time, the engaging claw 25a and the engaging recess 35a are configured so that the opening edge 35 once attached to the opening edge 25 is separated from the opening edge 25 and the second duct 30 is detached from the first duct 20. It functions as a retaining stopper to prevent it.

  Each of the first duct 20 and the second duct 30 is a blow molded product made of a resin material, and is formed by blow molding in which a pipe-shaped parison is sandwiched between molds and expanded with air. Since this blow molding is a known molding method, detailed description thereof is omitted here.

  In FIGS. 2 to 5, for each of the first duct 20 and the second duct 30, “PL” is attached to a parting line that is a divided surface of the mold at the time of blow molding. In each drawing, the up and down direction is the mold drawing direction.

  A molded body 30 a shown in FIG. 7 is a molded body in the previous stage that finally becomes the second duct 30. This molded body 30a is formed by blow molding using split molds D1, D2. The molded body 30a includes a crushed portion 30b formed on one parting line PL and a crushed portion 30c formed on the other parting line PL. Both the crushing part 30b and the crushing part 30c are parts having no internal space where the resin material is crushed by the molds D1, D2 during blow molding.

  In this molded body 30a, the root of one crushed portion 30b is cut according to the cut line CL. Further, the connecting arm 36 is formed from the other crushed portion 30c of the molded body 30a. That is, although not particularly shown, the molds D1 and D2 are configured such that the mold space corresponding to the crushing portion 30c of the molded body 30a forms the shape of the connecting arm 36.

  Thereby, the crushing part 30c is shape | molded by the connection arm 36, and the molded object 30a finally becomes the 2nd duct 30 as shown in FIG. In this case, the connecting arm 36 composed of the crushed portion 30c of the molded body 30a has a plate thickness corresponding to approximately twice the thickness of the main body portion 31 of the second duct 30, and has high rigidity.

  As shown in FIG. 8, the second duct 30 is located between the initial position P <b> 1 and the connection position P <b> 2 when the connection arm 36 is connected to the first duct 20 around the rotation center line L passing through the hinge portion 39. The outer dimension (vertical height dimension) is variable by rotating at.

  Here, the connection arm 36 is disposed at the initial position P1 when no external load is applied in a state where the second duct 30 is formed by blow molding. On the other hand, when connecting the second duct 30 to the first duct 20, an external load is applied to the connecting arm 36 so as to expand the connecting arm 36 downward. At this time, the connecting arm 36 is disposed at the connecting position P2.

  The outer dimension when the connecting arm 36 is at the initial position P1 is H1, and the outer dimension when the connecting arm 36 is at the connecting position P2 is H2 (> H1) exceeding H1. That is, the second duct 30 is configured such that the outer dimension is larger when the connecting arm 36 is at the connecting position P2 than when the connecting arm 36 is at the initial position P1.

  Below, the effect of the above-mentioned embodiment is demonstrated.

According to the duct device 10 described above, the first duct 20 can be attached to the interior panel 2 by using the extending portion 38 that is a part of the connecting arm 36 of the second duct 30 as the attachment seat. At this time, the extending portion 38 of the connecting arm 36 of the second duct 30 performs the same function as this mounting seat when it is assumed that the mounting seat is provided on the first duct 20 itself. Thereby, the attachment rigidity of the 1st duct 20 with respect to the interior panel 2 can be set using the connection arm 36 by the side of the 2nd duct 30 of the structure independent of the structure of this 1st duct 20. FIG. Therefore, while the weight of the first duct 20 can be reduced, the rigidity of the attachment of the first duct 20 to the interior panel 2 can be increased by increasing the rigidity of the extending portion 38 of the connecting arm 36.
In addition, since the mounting seat for the first duct 20 can be constructed without using another member other than the existing ducts 20 and 30, the number of parts of the duct device 10 can be prevented from increasing.
As a result, the mounting rigidity of the first duct 20 with respect to the interior panel 2 can be increased without increasing the number of parts, and the weight can be reduced.

  According to the duct device 10 described above, the mounting seat is fixed when the first duct 20 is mounted on the interior panel 2 by increasing the rigidity of the mounting seat for the first duct 20 (the extending portion 38 of the connecting arm 36). Since it becomes difficult to bend, workability | operativity of attachment work improves.

  According to the duct device 10 described above, the position of the mounting seat is not easily restricted as compared with the case where the mounting seat for the first duct 20 is provided in the first duct 20 itself, and the degree of freedom of the position of the mounting seat is increased. Can be increased.

  According to the duct device 10 described above, the blow molding conditions are set according to the position and dimensions of the mounting seat, which is necessary when the mounting seat for the first duct 20 is provided on the first duct 20 itself by blow molding. I don't need it.

  According to the duct device 10 described above, the thickness of the first duct 20 can be reduced by reducing the thickness thereof, while the plate thickness of the extending portion 38 of the connecting arm 36 is increased more than the thickness of the first duct 20. As a result, the rigidity of the extending portion 38 can be increased regardless of the thickness of the first duct 20.

  According to the above duct device 10, the first duct 20 is attached to the interior panel 2 in the vicinity of the blowout opening 22 by connecting the connecting arm 36 of the second duct 30 to the opening edge 23 of the first duct 20. . For this reason, the wobble of the 1st duct 20 in the state attached to the interior panel 2 can be suppressed, and the attachment stability of the 1st duct 20 is securable.

  According to the duct device 10 described above, since the thickness of the crushing portion 30c in the blow molded product exceeds the thickness of the second duct 30, the extension portion 38 of the connecting arm 36 is not increased without increasing the weight of the entire second duct 30. Stiffness can be increased. In this case, the extending portion 38 of the connecting arm 36 can be easily set to a desired thickness.

  According to the duct device 10 described above, the second duct 30 that is a blow-molded product is a state in which the connecting arm 36 is rotated from the initial position P1 to the connecting position P2 via the hinge portion 39, that is, the outer dimensions in the vertical direction. It is connected to the 1st duct 20 in the state where became large. For this reason, the external dimension at the time of blow molding of the second duct 30 may be smaller than the external dimension at the time of connection to the first duct 20. Therefore, the dimensions of the molds D1 and D2 used for blow molding of the second duct 30 can be kept small, and the equipment cost required for the molds D1 and D2 can be reduced.

  According to the duct device 10 described above, the mounting seat for the first duct 20 may be provided in the second duct 30 that is smaller than the first duct 20, and therefore the mounting seat is provided in the first duct 20 itself. Compared with, molding work is easier.

According to the duct device 10 described above, the second duct 30 can be stably supported from below by connecting the second duct 30 to the first duct 20 via the connecting arm 36 extending from the lower part thereof. . In this case, by providing two connecting pieces 37a and 37b that serve as a fixing portion of the second duct 30 with respect to the first duct 20 in the connecting portion 37 of the connecting arm 36, for example, any one of the two connecting pieces 37a and 37b. Compared to the case where only one of them is used, the number of fixing portions of the second duct 30 can be increased. For this reason, the noise suppression effect which suppresses the noise produced by the vibration of the 2nd duct 30 can be heightened.
In order to further enhance the above-described noise suppression effect, the connecting portion 37 of the connecting arm 36 is connected and fixed to the left wall of the opening edge 23 of the first duct 20 in addition to the two connecting pieces 37a and 37b. A third connecting piece can also be provided.

  The present invention is not limited to the above-described embodiments, and various applications and modifications can be considered without departing from the object of the present invention. For example, the following embodiments applying the above-described embodiment can be implemented.

  In the above embodiment, the case where the extending portion 38 of the connecting arm 36 of the second duct 30 is configured as a plate-like piece is exemplified, but a shape other than the plate shape is adopted as the shape of the extending portion 38. You can also.

  In the above embodiment, the case where the connecting portion 37 of the connecting arm 36 of the second duct 30 is connected to the opening edge 23 of the first duct 20 is illustrated, but instead, the connecting portion 37 of the connecting arm 36 is used. Can be connected to a part of the first duct 20 other than the opening edge 23.

  In the above embodiment, the case where the hinge portion 39 is provided on the connecting arm 36 of the second duct 30 has been described, but the hinge portion 39 may be omitted as necessary.

  In said embodiment, although illustrated about the case where the 1st duct 20 and the 2nd duct 30 smaller than this 1st duct 20 were connected via the connection arm 36 provided in the 2nd duct 30, The magnitude relationship between the two ducts is not limited to this. For example, a structure is adopted in which a first duct and a second duct that is equivalent to or larger than the first duct are connected via a connecting arm provided in the second duct. You can also.

  In the above embodiment, the case where the connecting arm 36 of the second duct 30 is formed by blow molding has been illustrated, but injection molding can be used instead of blow molding to form the connecting arm 36.

  In the above embodiment, the duct mounting structure for the instrument panel as the interior panel 2 of the vehicle 1 has been illustrated, but this mounting structure can also be applied to the duct mounting structure for interior panels other than the instrument panel. . In this mounting structure, the duct may be a duct for blowing conditioned air toward the occupant seated in the front seat of the vehicle, or for blowing conditioned air toward the occupant seated in the rear seat of the vehicle. It may be a duct.

1 vehicle
2 Interior panel (instrument panel)
5,6 Side face outlet (first outlet)
7, 8 Side defroster outlet (second outlet)
10 Vehicle air-conditioning duct equipment (duct equipment)
20 Side face duct (first duct)
22 Opening opening 23 Opening edge 30 Side defroster duct (second duct)
36 connecting arm 37 connecting part 38 extension part (mounting seat)
39 Hinge part L Rotation center line P1 Initial position P2 Mounting position H1, H2 Height dimensions (external dimensions)
S1, S2 Channel cross-sectional area

Claims (6)

An air conditioning duct device for a vehicle mounted on a vehicle,
A first duct which is attached to the interior panel and guides the conditioned air to the first outlet provided in the interior panel;
A second duct for guiding conditioned air to a second outlet provided in the interior panel adjacent to the first outlet;
With
The second duct includes a connecting arm for connecting the second duct to the first duct, and the connecting arm extends from a connecting portion with the first duct toward the interior panel. The vehicle air-conditioning duct apparatus is configured such that the extending portion serves as a mounting seat for the first duct with respect to the interior panel.   The vehicular air conditioning duct device according to claim 1, wherein the extending portion of the connecting arm is configured as a plate-like piece having a plate thickness that exceeds the thickness of the first duct.   The said connection arm is comprised so that the said connection part may be connected with the opening edge part of the blowing opening opened toward the said 1st blower outlet among the said 1st ducts. Air conditioning duct device for vehicles.   The said 2nd duct is a blow molding product which consists of resin materials, The said connection arm is comprised by the crushing part by which the said resin material is crushed at the time of blow molding, The any one of Claims 1-3 An air conditioning duct device for vehicles as described in 1. The connecting arm includes a hinge portion in which the resin material is thinned during blow molding of the second duct,
The external dimension of the second duct is variable by rotating between an initial position and a connecting position when the connecting arm is connected to the first duct, with the connecting arm passing through the hinge portion as a rotation center line. 5. The vehicle air conditioning duct device according to claim 4, wherein the outer dimension is configured to be larger when the connecting arm is in the connecting position than when the connecting arm is in the initial position.   The second duct is a small duct having a flow passage cross-sectional area of the conditioned air that is smaller than the first duct, and a part of the conditioned air that branches from the first duct and flows through the first duct is second blown. The vehicular air conditioning duct device according to any one of claims 1 to 5, wherein the vehicular air conditioning duct device is configured to guide to an exit.

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