JP2003341354A - Air-conditioning blowoff device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of parts and man-hours of assembling work in a structure to turn a vertical louver and to prevent conditioned air from leaking out of a housing, in an air-conditioning blowoff device for a vehicle in which a plurality of vertical louvers are slidably provided at a blowoff port to blowoff the conditioned air into a cabin interlocking with each other around shafts in a substantially vertical direction, allowing the swinging movement of the vertical louver to change the blowoff direction of the conditioned air. <P>SOLUTION: The housing 7 comprises a frame body 9 and a bezel 11. Either of the shafts 21 of the plurality of vertical louvers 17, 17 is made to be a drive shaft 23 which is rotatably clamped between the bottom of the cutout recess 9b of the frame body 9 lower wall 9a and the tip of the protruding piece 11b of the bezel 11 rear face. An engaging part 25 extending to the bezel 11 side is integrally provided at the tip of the drive shaft 23. Then, a vertical louver operation knob 33 integrally rotating with the drive shaft 23 is fitted and locked to the engaging part 25. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular air-conditioning blowout device in which a vertical louver is swung to change the blowing direction of conditioned air into a vehicle compartment, and more particularly to a structure for swinging the vertical louver. Belong to the technical field.

[0002]

2. Description of the Related Art Conventionally, as a vehicle air-conditioning blow-out device of this type, as shown in, for example, Japanese Unexamined Patent Publication No. 5-270256, a plurality of air-conditioning blow-out devices blows out conditioned air sent from the air-conditioning device into the passenger compartment. The horizontal louvers can be oscillated around the shaft in the substantially horizontal direction, and multiple vertical louvers are linked to the back side of the horizontal louver (opposite to the passenger compartment) to oscillate around the shaft in the substantially vertical direction. It is known that each of the louvers is movably provided so that the blowing direction of the conditioned air can be changed in the vertical direction and the horizontal direction by swinging the horizontal louvers and the vertical louvers.

In addition, in addition to this, in the one disclosed in Japanese Patent Application Laid-Open No. 7-228136, contrary to the above, a plurality of vertical louvers are provided on the vehicle compartment side, and a plurality of horizontal louvers are provided on the opposite vehicle compartment side. Are located in each.

In such a vehicle air-conditioning blowout apparatus, the vertical louver is provided with a plate-shaped louver body having a substantially flat surface portion, and a shaft portion projecting from the end of the louver body. Is supported on the upper and lower side walls of the housing forming the air outlet, so that the vertical louver is swung around the shaft portion. On the other hand, each louver body is provided with a link mechanism for connecting a plurality of vertical louvers and swinging them in the same direction. By rotating an operation knob connected to the link mechanism, a plurality of link mechanisms are provided. The vertical louvers can be simultaneously swung in the same direction.

Further, conventionally, since the above-mentioned operation knob (particularly the outer peripheral surface thereof) faces the passenger compartment side, it is necessary to use a resin material higher in quality than the frame of the housing which cannot be seen by the occupant and the link mechanism. It is separate from the invisible part of. The center of rotation is rotatably supported by the upper wall portion or the lower wall portion of the housing by a component such as a screw.

Further, for example, the operation knob has an arm portion extending to the side opposite to the outer peripheral surface thereof, an engaging pin is provided at the tip of the arm portion, and the engaging pin penetrates the lower wall portion of the housing. Is engaged with the connecting plate of the link mechanism, and by rotating the operation knob in this state, the arm portion is swung, and the engagement pin at the tip of the arm portion is concentric with the rotation center of the operation knob. It is swung while drawing an arcuate trajectory. Along with this, the direction of the conditioned air is changed to the left and right by the swing of the vertical louver. At this time, in order to secure a movable range of the engaging pin, it is necessary to form an arc hole concentric with the rotation center of the operation knob in the lower wall portion of the housing.

[0007]

However, if the operation knob for swinging the vertical louver is fastened to the lower wall portion of the housing by means of screws as in the conventional example, only the number of parts increases. Instead, a tool must be used for assembling, and there is a problem that the number of assembling steps increases.

Further, there is a problem that conditioned air leaks out of the housing due to the arcuate hole in the lower wall portion of the housing.

The present invention has been made in view of these points, and an object thereof is to reduce the number of parts and the number of assembling steps and improve the conditioned air from the housing by devising the mounting structure of the operation knob. The purpose is to prevent leakage.

[0010]

In order to achieve the above object, in the invention of claim 1, a plurality of vertical louvers are linked to each other around a shaft portion in a substantially vertical direction at an outlet for blowing conditioned air into a vehicle compartment. The present invention is intended for a vehicle air-conditioning blow-out device which is provided so as to be swingable, and the blowing direction of conditioned air is changed to the left-right direction by swinging of the vertical louver.

The air conditioning blow-out device for a vehicle comprises a frame body whose both ends are open, and a bezel integrally attached to the vehicle compartment side of the frame body and having a knob accommodating hole for operating the vertical louver. A housing having the housing, the outlet is provided in the housing, and the shaft portion of any one of the vertical louvers is a drive shaft portion protruding from the lower wall portion or the upper wall portion of the housing to the outside of the housing. The projecting end portion of the drive shaft portion is integrally provided with an engaging portion extending toward the bezel side, and the lower wall portion or the upper wall portion corresponding to the drive shaft portion of the frame body is provided with the drive shaft. While the notch recessed to the position of the notch is provided, on the back surface of the bezel corresponding to this notch recess, there is provided a protrusion that fits into the notch, and the bottom of the notch and the tip of the protrusion. The drive shaft is rotatably sandwiched between An operation knob for operating a vertical louver, which has an arcuate outer peripheral surface that penetrates the knob accommodating hole of the bezel and faces the interior of the vehicle and rotates integrally with the drive shaft portion, is retained in the engagement portion and is retained. It is assumed that the configuration is combined.

According to the above construction, the engaging portion is integrally provided at the projecting end portion of the drive shaft portion of the vertical louver projecting from the lower wall portion or the upper wall portion of the housing to the outside of the housing. In addition, since the operation knob for swinging the vertical louver is retained and engaged integrally with the swing, it is not necessary to fasten the operation knob separate from the housing to the housing with a screw, and the number of parts can be reduced. At the same time, the number of assembling steps can be reduced.

Further, since the drive shaft portion is rotatably sandwiched between the bottom portion of the notched concave portion and the tip end portion of the projecting piece, and the operation knob is rotated integrally with the drive shaft portion, it is different from the conventional case. It is not necessary to provide the housing with an arcuate hole for moving the engaging pin (drive shaft). Therefore, the conditioned air does not leak out of the housing.

According to the second aspect of the present invention, the engaging portion includes a pair of horizontal plates that are substantially orthogonal to the drive shaft portion and are separated from each other in the axial direction of the drive shaft portion. The operation knob has a pair of holding portions for sandwiching the held portions in contact with the left and right side wall surfaces. Then, the holding portion of the operation knob is inserted between the horizontal plates from the outer end side of the held portion in the engaging portion, and the side wall surface of the held portion and the holding portion are brought into surface contact with each other. It is configured such that it is engaged with and held by the engaging portion so as to rotate together.

According to the above construction, the operation knob is swingably and integrally engaged with and held by the engaging portion in a state where the side wall surface of the held portion and the holding portion are in surface contact with each other, so that the contact area between the two is increased. When the operation knob is rotated, its rotational force is transmitted to the held portion and the vertical louver is moved to the drive shaft portion. It can be rocked securely around. Further, even if vibration of the vehicle is transmitted, there is no rattling between the operation knob and the held portion of the engaging portion, and vibration does not occur.

According to the third aspect of the present invention, a pair of holding portions of the operation knob are provided at their tips with abutting portions projecting substantially orthogonal to the holding portions and extending away from the holding portions. On the inner end side of the part, a vertical plate that is orthogonal to this horizontal plate and is connected to both horizontal plates is provided. Make sure it is stopped.

According to the above construction, since the contact portion at the tip of the holding portion is in contact with the vertical plate, the rotary operation force applied to the operation knob can be directly transmitted to the vertical plate, so that the small rotary operation force. Therefore, the vertical louver can be rocked more reliably.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 6 shows an instrument panel P provided at a front end portion of a vehicle compartment of a vehicle. A center blow-out portion 2 is provided at a substantially central portion of a rear surface of the instrument panel P facing the vehicle compartment, and a left and right end portions thereof are provided. Are provided with side blowout portions 3 and 3, and defroster blowout portions 4 and 4 are provided in the front portion. These blowout parts 2, 3 and 4 are
Although not shown, it is connected to an air conditioner provided in the instrument panel P via an air duct, and the conditioned air conditioned by this air conditioner is passed through the air ducts from the blowout portions 2, 3, 4 to the passenger compartment and the front windshield. It is designed to be blown out (not shown).

The center air outlet 2 is provided with a vehicle air conditioning air outlet 1 according to an embodiment of the present invention. As shown in the enlarged detail of FIG. 5, the vehicle air-conditioning blowout device 1 includes a housing 7 made of a resin molded product, and the housing 7 has a rectangular frame body 9 with both ends in the vehicle front-rear direction open.
And a bezel 11 integrally attached to the vehicle body side of the frame body 9. On the left and right sides of the lower portion of the bezel 11, rectangular knob accommodating holes 11a, 11a for accommodating vertical louver operation knobs 33, 33 described later are opened. The rear end of the bezel 11 in the vehicle front-rear direction in the housing 7 is open to the inside of the vehicle, and the front end of the frame 9 is connected to the air conditioner.

A partition wall 7a (indicated by a broken line in FIG. 5) is integrally formed in the housing 7 at the substantially left and right center thereof, and the partition wall 7a defines two air outlets 13 in the housing 7. ing. A plurality of (in the present embodiment, 3
Book) lateral louvers 15, 15, ...
A plurality of (six in the present embodiment) vertical louvers 17, which extend in the vertical direction, are provided inside the instrument panel P (front side of the vehicle) with respect to 5, 15 ,.

As shown in FIG. 1, a plurality of engaging pieces 11 are provided on the back surfaces (front side of the vehicle) of the upper and lower edges of the bezel 11.
c, 11c, ... are separated from each other in the vehicle width direction, and the air outlets 13, 13 are provided.
Is provided so as to surround the frame toward the frame body 9 side, and a rectangular engagement hole 11d is opened at the tip end side of each engagement piece 11c. On the other hand, the upper wall 9d and the lower wall 9a of the frame body 9 are provided with engaging projections 9c, 9c, ... Corresponding to the engaging pieces 11c, 11c ,. The engaging projection 9c can be engaged with the engaging hole 11d of the engaging piece 11c, and the engagement between the engaging hole 11d and the engaging projection 9c causes the frame 9 and the bezel 11 to have their peripheral edges. In, they are continuously and integrally assembled in a substantially airtight manner.

As shown in FIG. 4, in the lower wall portion 9a of the frame 9 of each of the outlets 13, a part of the end portion on the bezel 11 side is substantially rectangular to the position of the drive shaft portion 23 described later. A notched recess 9b formed by notching in a shape is provided, and on the rear surfaces (vehicle front side surfaces) of upper and lower edges of the bezel 11 corresponding to the notched recess 9b, the notched recess 9b is fitted. The protrusion 11b is provided. And the notch recess 9b
The semi-circular halves 12a and 12b are formed at the bottom of the base and the tip of the protrusion 11b. When the frame body 9 and the bezel 11 are assembled, each notch 9b forms the protrusion 11b. The hole 12 for the drive shaft portion is airtightly closed by the halves, and is substantially circular between the bottom of the notch 9b and the tip of the protrusion 11b by the respective halves 12a and 12b.
And a drive shaft portion 23 described later is formed in the drive shaft portion hole 12.
Is rotatably clamped.

Incidentally, each lateral louver 15 of each of the above outlets 13
Are swingably supported by the left and right shaft portions (not shown) on the left and right sidewalls of the outlet 13, that is, on the outer wall of the bezel 11 and the partition wall. Further, outer ends in the vehicle width direction of the plurality of horizontal louvers 15, 15, ... Are connected by a horizontal louver link mechanism 20 (only shown in FIG. 1), and the lowermost horizontal louver 15 is connected.
Has a substantially cylindrical lateral louver operating knob 19 integrally formed therewith, and when the lateral louver operating knob 19 is rotated, all the upper lateral louvers 15, 15, ... It is configured to be.

As a feature of the present invention, as shown also in FIG. 2, each vertical louver 17 of each of the outlets 13 has a plate-shaped vertical louver body 17a. On the rear end side (vehicle compartment side), shaft portions 21 and 21 extending substantially in the vertical direction are provided concentrically.
The vertical louvers 17 are swingably supported by the upper and lower walls of the frame 9 by the reference numerals 1 and 21.

A connecting shaft 17b (shown by a broken line in FIG. 2) is provided on the lower surface of the front end side (vehicle front side) of each of the vertical louvers 17, while the vertical louver is provided below the front end of each of the vertical louvers 17. A plate-shaped link plate 39 for connecting the connecting shafts 17, 17 ...
Vertical louver connection holes 39a, 39a, into which b, ... Are inserted.
Are provided, and the vertical louver connecting holes 39a, 3 are provided.
By inserting the connecting shafts 17b, 17b, ... Into 9a ,.
The vertical louvers 17, 17, ... Are connected and simultaneously swung in the same left and right directions.

A plurality of vertical louvers 17 at each of the outlets 13,
Out of the partition walls 17a, ...
The lower shaft portion 21 (the central one in FIG. 2) of the vertical louver 17 located substantially in the center in the vehicle width direction of the drive shaft portion projects from the lower wall portion 9a of the frame body 9 to the outside of the frame body 9. It is said to be 23. An engagement portion 25 extending toward the bezel 11 side is integrally formed with the drive shaft portion 23.

The engagement portions 25 are arranged substantially orthogonal to the drive shaft portion 23 and are separated from each other in the axial direction of the drive shaft portion 23, and the bezel 11 side is a pair of upper and lower horizontal plates 27 having an arc shape. 27, which is located between the horizontal plates 27, 27 and connects the horizontal plates 27, 27 to each other, and the left and right side wall surfaces 29a,
A held portion 29 in which 29a are formed in parallel to each other, and an inner end side (driving shaft portion 23 side) of the held portion 29 are arranged so as to be orthogonal to the horizontal plates 27, 27, and both horizontal plates 27, a vertical plate 31 connected to 27.
A predetermined gap is provided between the inner end of the held portion 29 and the vertical plate 31.

A vertical louver operation knob 33 is engaged with the held portion 29 of the engaging portion 25. As shown in FIGS. 2 and 3, the vertical louver operation knob 33 has a semicircular plate shape having an arcuate outer peripheral surface 33a and arranged substantially horizontally, and has an inner peripheral surface (rear surface) Is a pair of holding portions 35, 35 extending to a position corresponding to the diameter portion of the disk portion, which are parallel to each other and are projected at a predetermined interval.
The gap 35 is slightly larger than the gap between the left and right side walls 29a, 29a of the held portion 29 of the engaging portion 25.

Further, hook-shaped locking portions 37, 37 for preventing the vertical louver operation knob 33 from coming off the held portion 29 are provided on the opposing surfaces of the holding portions 35, 35 so as to face each other. Further, a contact portion 41 is provided at the tip of each holding portion 35 so as to project substantially orthogonal to the holding portion 35 and extend away from each other. The abutting portion 41 abuts the vertical plate 31, and the holding portions 35, 35 move the held portion 29 of the engaging portion 25 to the left and right side wall surfaces 29a, 29a.
29a is sandwiched in the state of being in contact with 29a, and the locking portion 3
The vertical louver operation knob 33 causes the vertical louver operation knob 33 to engage with each other by fitting 7, 7 and 37 between the held portion 29 and the vertical plate 31 and engaging with the inner end surface (on the side of the vertical plate 31) of the held portion 29. It is designed to be locked against rotation and to be retained.

The outer peripheral surface 3 of the vertical louver operation knob 33 is
A reference mark 33b, which indicates the swing direction of the vertical louvers 17, 17, ... The outer peripheral surface 33a of the vertical louver operation knob 33 and the outer peripheral surface of the horizontal louver operation knob 19 are provided with knurls or the like to prevent slippage, thereby improving operability.

Further, as shown in FIG. 1, the lower wall portion 9a of the frame body 9 is located inside the drive shaft portion holes 12 (on the front side of the vehicle).
Stoppers 43, 43 are provided so as to be spaced apart from each other by a predetermined distance, and the stoppers 43, 43 regulate the turning end of the vertical louver operation knob 33.

Next, a procedure for assembling the vehicle air conditioning / blowing device 1 according to the embodiment of the present invention will be described. As shown in FIG. 2, when assembling the vehicle air conditioning / blowing device 1, first, the vertical louvers 17 and 1 to which the link plates 39 are attached are attached.
.. are assembled to the frame 9. This makes the vertical louver 1
The engaging portion 25 integrally formed with the drive shaft portion 23 of one of 7, 17, ... Is protruding from the lower wall portion 9a of the frame body 9. Next, each vertical louver operation knob 33 is attached to the engaging portion 25. That is, the vertical louver operation knob 33
The holding portions 35, 35 of the engaging portion 25 are inserted from the outer end side of the held portion 29 between the horizontal plates 27, 27, and the side wall surfaces 29a, 29a of the held portion 29 and the inner surfaces of the holding portions 35, 35 are inserted. And are brought into surface contact with each other, and the contact portions 41, 41 are brought into contact with the vertical plate 31. This allows the vertical louver operation knob 3
3 is engaged with and held by turning integrally with the engaging portion 25 while being prevented from rotating. At this time, the latching portions 37, 37 of the holding portions 35, 35 sandwich the inner end surface of the held portion 29 so that the vertical louver operation knob 33 does not come out of the held portion 29.

After that, the bezel 11 having the horizontal louvers 15, 15, ... Assembled is mounted so that the vertical louver operation knob 33 fits into the knob accommodating hole 11a of the bezel 11.
Of the drive shaft portion 23, and the drive shaft portion 23 is halved at the bottom of the notched recess portion 9b of the frame body 9 forming the drive shaft portion hole 12 and the tip portion of the projection 11b of the bezel 11. The engaging portion 25 at the lower end of the drive shaft portion 23 is sandwiched between the concave portion 12b and the vertical louver operation knob 33, and is disposed below the housing 7.

In this way, when the frame body 9 and the bezel 11 are engaged and integrally assembled, the drive shaft portions 2 are formed.
The vertical louver operation knob 33 engaged with the engaging portion 25 of No. 3 projects from the knob housing hole 11a of the bezel 11 so as to face the vehicle compartment side, and the outer peripheral surface 33a thereof can be rotated left and right.

With the vehicle air-conditioning blow-out device 1 thus assembled assembled in the center blow-out portion 2 of the instrument panel P, conditioned air is generated in the air-conditioner by the operation of the air-conditioner, and its harmony is produced. The air is blown into the vehicle compartment through the air ducts in the instrument panel P from the outlets 2, 3, 4 on the surface of the instrument panel P.

At this time, in the vehicle air-conditioning blow-out device 1 provided in the center blow-out portion 2 at the left and right center of the instrument panel P, it is necessary to appropriately change the blowing direction of the conditioned air depending on the occupant arrangement and the like. In such a case, the horizontal louver operation knob 19 is pivotally operated in the vertical direction to swing the horizontal louvers 15, 15, ..., Thus, the vertical blowing direction of the conditioned air can be changed to a desired direction. it can. Furthermore, by rotating the vertical louver operation knob 33 in the left-right direction,
By swinging the vertical louvers 17, 17, the left and right blowing directions of the conditioned air can be changed to a desired direction, and by these operations, the blowing direction of the conditioned air can be freely changed left, right, up and down. You can

That is, the vertical louver operation knob 33 is rotated in the left-right direction of the outer peripheral surface 33a of the vertical louver 1 to operate the vertical louver 1.
When the outer peripheral surface 33a is rotated to the far right, the drive shaft portion 23 of the vertical louver 17 is rotated counterclockwise as viewed from above, and the vertical louver 17 is rotated. The rotational force is transmitted from the connecting shaft 17b to the link plate 39, and the link plate 39 moves to the left. As a result, the vertical louvers 17, 17, ... Are rotated so that the rear side portions of the vertical louver main bodies 17a, 17a, .. are directed to the left side of the front end portion, and the conditioned air is blown out to the rightmost direction. . On the other hand, when the outer peripheral surface 33a of the vertical louver operation knob 33 is rotated to the leftmost position, the vertical louvers 17, 17, ..., Reverse the rear side portions of the vertical louver main bodies 17a, 17a ,. The conditioned air is rotated toward the right side and is blown out toward the leftmost side.

Therefore, in this embodiment, the vertical louver 1 protruding from the lower wall portion 9a of the frame 9 of the housing 7 to the outside of the frame 9 at each outlet 13 of the vehicle air-conditioning blow-out device 1.
7, the engaging portion 25 is provided integrally with the drive shaft portion 23, and the vertical louver operation knob 33 that swings the vertical louver 17 is retained and integrally engaged with the engaging portion 25. ,
Since it is not necessary to fasten the vertical louver operation knob, which is separate from the housing, to the housing with screws, the number of parts can be reduced and the number of assembling steps can be reduced.

Further, the drive shaft 23 is rotatably sandwiched between the bottom of each notch 9b of the frame 9 and the tip of each projection 11b of the bezel 11, and the vertical louver operation knob 3 is provided.
Since 3 rotates integrally with the drive shaft portion 23, conditioned air does not leak out of the housing 7.

Further, the vertical louver operation knob 33 is attached to the engaging portion 2.
5, the side wall surfaces 29a, 29a of each held portion 29 and the holding portion 3
Since the rocking pieces 5 and 35 are engaged with each other in a swinging manner while being in surface contact with each other, the contact area between them is increased, and the holding portions 35 and 35 of the vertical louver operation knob 33 and the driven shaft portion 23 are covered. When the vertical louver operation knob 33 is rotated reliably and stably with the holding portion 29, its rotational force is transmitted to the held portion 29 and the vertical louvers 17, 17 ,. Can be rocked to. Further, even if vibration of the vehicle is transmitted, there is no rattling between the vertical louver operation knob 33 and the held portion 29 of the engaging portion 25, and vibration does not occur.

Further, the contact portions 4 at the tips of the holding portions 35, 35
Since 1 and 41 are in contact with the vertical plate 31, the rotational force transmitted to the vertical louver operation knob 33 can be directly transmitted to the vertical plate 31, and the vertical louvers 17 and 17 can be more reliably provided with a small turning operation force. , ... can be rocked.

Although the drive shaft portion hole 12 is provided on the lower wall portion 9a side of the frame body 9 in this embodiment, it may be provided on the upper wall portion side of the frame body. In this case, the vertical louver operation knob 33 is arranged on the upper wall portion 9d side of the frame body 9.

Further, in the present embodiment, the vehicle air-conditioning blow-out device 1 is provided in the central portion of the instrument panel P, but it may be provided in the left and right end portions of the instrument panel P, the ceiling of the passenger compartment, the vicinity of the rear seats, and the like. It is also possible to adopt a structure in which a swing type vertical louver is provided at the conditioned air outlet.

[0044]

As described above, according to the vehicular air-conditioning blow-out device of the first aspect of the present invention, a plurality of vertical louvers are provided at the blow-out port for blowing the conditioned air into the vehicle interior, and any one of the vertical louvers is provided. The shaft portion is a drive shaft portion protruding from the lower wall portion or the upper wall portion of the housing to the outside of the housing, and the protruding end portion is integrally provided with an engaging portion extending toward the bezel side forming the vehicle compartment side portion of the housing. , The drive shaft portion is rotatably sandwiched between the bottom portion of the cutout recessed portion of the housing on the side opposite the vehicle compartment of the housing and the tip portion of the projecting piece on the back surface of the bezel, and the engagement portion is integrally formed with the drive shaft portion. Since the operation knob for operating the vertical louver that rotates to the left is retained and engaged, conditioned air does not leak out of the housing, and not only the number of parts can be reduced but also the number of assembly steps can be reduced. it can.

According to the second aspect of the present invention, the holding portion of the operation knob is inserted between the horizontal plates from the outer end side of the held portion in the engaging portion, and the side wall surface of the held portion and the surface of the holding portion. In the contact state, the operation knob is engaged with and held by the engaging portion so that the vertical louver can be reliably swung around the drive shaft portion, and the operation knob is transmitted even when vehicle vibration is transmitted. Vibration does not occur between the holding part and the held part.

According to the third aspect of the present invention, the vertical louver can be more surely moved with a small turning operation force by bringing the abutting portions of the pair of holding portions of the operating knob into contact with the vertical plates of the engaging portions. Can swing.

[Brief description of drawings]

FIG. 1 is a plan view of a vehicular air-conditioning blowout device according to an embodiment of the present invention, as viewed from the bottom surface.

FIG. 2 is an exploded perspective view showing a main part of a vehicle air conditioning / blowing device.

FIG. 3 is an enlarged plan view of a vertical louver operation knob.

FIG. 4 is a plan view of the periphery of the drive shaft portion hole of the housing lower wall portion when the vertical louver operation knob and the engaging portion are omitted, as seen from the lower surface.

FIG. 5 is a perspective view of the vehicle air conditioning blow-out device as viewed from the left side of the vehicle.

FIG. 6 is a perspective view of an instrument panel provided with a vehicle air conditioning / blowing device according to an embodiment of the present invention.

[Explanation of symbols]

1 Vehicle air-conditioning blower 7 housing 9 frame 9a lower wall 9b Notch recess 11 bezel 11a knob accommodation hole 11b protrusion 13 Outlet 17 Vertical louver 21 Shaft 23 Drive shaft 25 Engagement part 27 Horizontal plate 29 Held part 29a Side wall surface 31 vertical plate 33 Vertical louver operation knob 33a Arc-shaped outer peripheral surface 35 holding part 37 Locking part 41 Contact part

Continued front page    (72) Inventor Takashi Tamura             2-25-31 West, Kabe Minami, Asakita-ku, Hiroshima-shi             Kawa Kasei Co., Ltd.

Claims (3)

[Claims] 1. A plurality of vertical louvers are provided at an outlet for blowing conditioned air into a vehicle compartment so as to be swingable in association with each other around a shaft portion in a substantially vertical direction, and the louver swings the conditioned air. In a vehicle air-conditioning blowout device in which the direction is changed to the left and right, a frame body having both open ends, and a frame accommodating unit integrally attached to the vehicle compartment side of the frame body, the knob accommodation hole for operating the vertical louver is opened. A housing having an open bezel, the outlet is provided in the housing, and a shaft portion of any one of the vertical louvers projects from a lower wall portion or an upper wall portion of the housing to the outside of the housing. The drive shaft portion is integrally provided with an engaging portion extending toward the bezel side at a protruding end portion of the drive shaft portion, and a lower wall portion corresponding to the drive shaft portion of the frame body. Or, cut to the position of the drive shaft on the upper wall. While notched recesses are provided, on the back surface of the bezel corresponding to the notched recesses, there are provided protrusions that fit into the notched recesses, and the bottom of the notched recesses and the tip of the protrusions are provided. The drive shaft portion is rotatably sandwiched between the drive shaft portion and the engagement portion having an arcuate outer peripheral surface that penetrates the knob receiving hole of the bezel and faces the vehicle interior. An air conditioning blow-out device for a vehicle, wherein an operation knob for operating a vertical louver that rotates integrally is retained and engaged with the operation knob. 2. The vehicle air-conditioning blow-out device according to claim 1, wherein the engaging portion is a pair of horizontal plates that are substantially orthogonal to the drive shaft portion and are separated from each other in the axial direction of the drive shaft portion. And a held portion formed between the horizontal plates and having left and right side wall surfaces formed in parallel with each other, and the operation knob is provided with the held portion in contact with the left and right side wall surfaces. A pair of holding parts to be sandwiched are provided so as to project, and the holding part of the operation knob is inserted between the horizontal plates from the outer end side of the held part in the engaging part so as to connect the side wall surface of the held part and the holding part. An air conditioner blow-out device for a vehicle, wherein the operation knob is engaged with and held by an engaging portion so as to rotate integrally with each other by being brought into surface contact with each other. 3. The vehicle air-conditioning blow-out device according to claim 2, wherein a pair of holding portions of the operation knob are provided at their tips with projecting contact portions that extend substantially orthogonal to the holding portions and extend away from the holding portions. A vertical plate that is orthogonal to the horizontal plate and is connected to both horizontal plates is provided on the inner end side of the held part of the engaging part. The air-conditioning blow-out device for a vehicle, wherein: