JP4971927B2 - Wind direction adjustment device - Google Patents

Description

  The present invention relates to a wind direction adjusting device that is arranged on an instrument panel or the like and adjusts the wind direction of air blown into a passenger compartment in order to perform ventilation or air conditioning in an automobile.

  Generally, a wind direction adjusting device is mounted on an instrument panel or the like of an automobile, and by operating the wind direction adjusting device by a driver or the like, the wind direction of the air blown into the passenger compartment can be adjusted in the vertical direction and the horizontal direction. Further, the air blowing can be closed to stop the air blowing. An example of such a wind direction adjusting device is disclosed in Japanese Patent Laid-Open No. 2002-2144861 (Patent Document 1), Japanese Utility Model Publication No. 6-28329 (Patent Document 2), and the like.

  As shown in FIG. 5, the wind direction adjusting device 61 described in Patent Document 1 includes a case body 62 whose outlet is directed toward the passenger compartment, and an end of the case body 62 on the outlet side (hereinafter referred to as “the air outlet”). A guide member 63 that functions as a vertical fin, a plurality of wind direction adjusting lateral fins 64 that are rotatably disposed upstream of the guide member 63 in the case body 62, and a guide. An operation knob 65 that is slidably attached to the member 63 and operates to rotate the horizontal fins 64 and a link member 66 that interlocks the rotations of the plurality of horizontal fins 64 are provided.

  In general, the plurality of horizontal fins 64 whose rotations are linked to each other by the link member 65 are inclined downward toward the passenger compartment when the air outlet is closed so as not to impair the design of the instrument panel. It is arranged to become.

  Further, a notch 67 for restricting the movable range of the operation knob 65 is provided on the upstream surface side of the guide member 63, and the notch 67 has a lateral side for restricting the movement of the operation knob 65. An engaging portion 68 protruding toward the fin 64 is formed at a predetermined position.

  In this case, the operation knob 65 has a hook-like claw portion that goes around the upstream surface of the guide member 63 and fits to the guide member 63 when the operation knob 65 is attached to the guide member 63. Thereby, when the operation knob 65 is moved to the lower end position of the movable range, the claw portion of the operation knob 65 is engaged with the engaging portion 68 of the guide member 63. Can be restricted.

  With such a wind direction adjusting device 61 of Patent Document 1, the driver or the like operates the operation knob 65 to rotate the plurality of horizontal fins 64 in conjunction with each other, thereby blowing out from the air outlet of the case body 62. It is possible to adjust the wind direction of the air in an arbitrary direction. Further, by rotating the plurality of horizontal fins 64 to bring the adjacent horizontal fins 64 into a closed state (a fully closed state) overlapping each other as shown in FIG. Without providing a dedicated shut valve (damper plate) or the like for opening and closing the air flow path on the upstream side of the lateral fin 64, the air blowing from the wind direction adjusting device 61 into the vehicle compartment can be stopped.

  Further, in the wind direction adjusting device 61 of Patent Document 1, when the lateral fin 64 is rotated to the closed state, the claw portion of the operation knob 65 gets over the engaging portion 68 of the guide member 63 and becomes the engaging portion 68. Engage. Accordingly, the closed state of the horizontal fins 64 can be stably maintained, and the horizontal fins 64 can rotate from the closed state even when subjected to vibrations of the automobile or the wind pressure of the air supplied into the case body 62. Can be prevented from opening.

  On the other hand, the air conditioner described in Patent Document 2 is provided with a register case, an adjustment plate that is pivotably disposed in the vicinity of the upstream end edge in the register case, and an adjustment plate that adjusts the air flow rate. A ridge that is erected on an inner wall surface and that contacts one end edge of the adjustment plate that rotates in the closing direction to regulate the rotation of the adjustment plate, and the register case is fully closed; Have. In addition, a plurality of notches are provided in the lower side of the inner peripheral portion of the upstream edge of the register case, and the lower side of the inner peripheral portion is formed in an uneven shape.

  In such an air conditioner of Patent Document 2, a minute gap is formed between the adjustment plate and the protrusion just before the adjustment plate is rotated to make the inside of the register case fully closed. Generally, when air flows into such a minute gap vigorously, Karman vortices are generated when the air passes through the gap, and a high-pitched whistling sound (eddy current sound) is generated.

On the other hand, in the air conditioner of Patent Document 2, since the lower side of the inner peripheral portion of the upstream end edge is formed in a concavo-convex shape by a plurality of notches, the air is very small between the adjustment plate and the protrusion. Before flowing into the gap, the air flow is disturbed by the lower side of the uneven inner peripheral portion. Thereby, since generation | occurrence | production of a Karman vortex is suppressed when air passes the said clearance gap, generation | occurrence | production of a whistling sound (eddy current sound) can be prevented.
JP 2002-144861 A Japanese Utility Model Publication No. 6-28329

  In the conventional wind direction adjusting device 61 as in Patent Document 1, when the lateral fins 64 are turned to the closed state in order to stop the air blowing, the air direction adjusting device 61 is viewed from the air outlet side (front). In the center area of the blowout port, the plurality of horizontal fins 64 overlap each other and are completely closed. For this reason, in the center part area | region of a blower outlet, as FIG. 5 shows, the flow of the air supplied in the case can be easily interrupted | blocked by the some horizontal fin in a closed state.

  However, in such a wind direction adjusting device 61 of Patent Document 1, since the case body 62 and the horizontal fin 64 are generally formed of synthetic resin such as ABS, the horizontal fin 64 is rotated when the horizontal fin 64 is rotated. When 64 and the case body 62 interfere with each other, the interference portion is worn away. Therefore, in general, in order to prevent the horizontal fin 64 and the case body 62 from interfering with each other, for example, between the peripheral edge of the entire horizontal fin 64 in a closed state and the inner wall surface of the case body 62, FIG. A small gap 69 as shown is provided.

  For this reason, even if the driver or the like rotates the horizontal fins 64 in a closed state in order to stop the air blowing from the wind direction adjusting device 61, in practice, the gap between the peripheral edge of the entire horizontal fins and the wall surface of the case body. The air leaks from the gap 69 formed in the above. In particular, in the wind direction adjusting device 64 of Patent Document 1, since the lateral fins 64 are generally arranged so as to incline downward toward the passenger compartment when the air outlet portion is closed as described above, The air that has flown is guided to the lower edge side of the lowermost horizontal fin 64 by a plurality of inclined horizontal fins 64 in the closed state, and between the lower edge of the horizontal fin 64 and the case body wall surface. There is a problem that the flow rate of air leaking from the gap 69 increases.

  Therefore, in the wind direction adjusting device 61 of Patent Document 1, for example, although the driver or the like has rotated the lateral fin 64 to the closed state, the air leaks strongly from the gap 69, so that the driver or the like There was a case of feeling a crevice wind or abnormal noise (wind noise). As a result, problems such as discomfort to the driver and the like, and problems such as deterioration of the quality of the wind direction adjusting device have occurred.

  On the other hand, in the air conditioner of Patent Document 2, when the air blowing is stopped, the adjustment plate is rotated in the closing direction, and one end edge of the adjustment plate is erected on the lower inner wall surface of the register case. By contacting the strip, the inside of the register case is fully closed.

  However, even in the air conditioner of Patent Document 2, for example, the adjustment plate is repeatedly opened and closed, and a contact portion between the adjustment plate and the ridge is worn to form a gap between the adjustment plate and the ridge. In this case, or when a gap is provided between the other edge of the adjustment plate and the upper inner peripheral surface of the register case when the adjustment plate is held in a fully closed state, the above-mentioned Patent Document 1 is used. Similarly to the above, there is a problem that the driver or the like feels a crevice wind or abnormal noise (wind noise) occurs even when the adjustment plate is rotated to the fully closed state.

  The present invention has been made in order to solve such a conventional problem, and a specific object of the present invention is that, when the air blowing is stopped by rotating the fins to the fully closed state, the driver or the like. An object of the present invention is to provide a high-quality wind direction adjusting device that prevents a driver from feeling unpleasant feelings by preventing a gap air from being felt and from generating abnormal noise (wind noise).

In order to achieve the above object, a wind direction adjusting device provided by the present invention has, as a basic configuration, a case body and at least one wind direction adjustment rotatably arranged at a blowout port of the case body. and a use fin, by the rotation operation of the wind direction adjustment fins, a wind deflector which made it possible to open and close the discharge port as well as adjusting the wind direction of the air blown out through the air outlet portion The inner wall surface of the case body has a stepped portion that expands the interval between the opposed inner wall surfaces of the case body in the direction orthogonal to the air blowing direction to the air outlet side, and the stepped portion includes the wind direction adjusting fin. The tip of the wind direction adjusting fin is provided at a position where the wind direction adjusting fin overlaps at the time of closing, and a position avoiding interference with the wind direction adjusting fin when the wind direction adjusting fin is rotated, Of the case body Are both erected in a position corresponding to the gap away from the gap formed between the wall surface and the wind direction adjustment fins, to become a protruding portion impinging airflow leaking from the gap It is the main feature.

  Further, the wind direction adjusting device according to the present invention is slidably fitted to the first fin and at least one first fin disposed in the air outlet of the case body, and the wind direction adjusting fin An operation knob for operating the rotation, wherein the fin for adjusting the wind direction is arranged as a second fin on the upstream side of the first fin and in a direction intersecting the first fin, and It is preferable that the portion is at a position between the first fin and the second fin on the wall surface of the case body and continuously extends in parallel with the second fin.

  In such a wind direction adjusting device according to the present invention, the case body includes a main body portion and a spacer that is attached to the air outlet side in the main body portion and fits the first fin. The part is preferably provided upright on the spacer.

Further, in the present invention, the wind direction adjusting fin is attached to the case body so as to close the case body outlet in a state where the fin is adjusted at a predetermined angle with respect to the blowing direction of the case body, The strip is arranged at a position along the first edge of the wind direction adjusting fin on the side where the flow of air supplied to the case body in the closed state is guided by the inclination of the wind direction adjusting fin. It is preferable. In this case, it is particularly preferable that the ridge portion is also arranged at a position along the second edge that is opposite to the first edge of the entire wind direction adjusting fin in the closed state. preferable.
Furthermore, it is preferable that the standing height of the protrusion is set to 1 mm or more and 3 mm or less.

  The wind direction adjusting device of the present invention includes a case body and at least one wind direction adjusting fin that is rotatably arranged at the air outlet portion of the case body. The wind direction adjusting device also includes a case body wall surface when the case body outlet is closed by the wind direction fin to prevent the rotating wind direction adjusting fin and the case body wall surface from interfering with each other. A predetermined gap is provided between the wind direction adjusting fins. Furthermore, in the present invention, a ridge portion is erected at a position on the downstream side of the inner wall surface of the case body that is opposed to the gap.

  According to such a wind direction adjusting device of the present invention, even when air leaks through the gap between the wind direction adjusting fin and the case body wall surface in the closed state, the leaked air flow is It can be diffused by colliding with the ridges standing from the wall surface. By diffusing the air flow leaking out of the ridges in this way, it is possible to effectively prevent the driver and the like from feeling a crevice wind and the generation of wind noise. The quality of the wind direction adjusting device can be improved without giving any air.

  In particular, the wind direction adjusting device of the present invention includes at least one first fin disposed in the air outlet portion of the case body and a slidably fitted to the first fin, and the wind direction adjusting fin is rotated. And an operation knob for operating the movement. Moreover, the said wind direction adjustment fin is distribute | arranged as a 2nd fin in the direction which crosses with respect to the said 1st fin in the upstream of a 1st fin. Furthermore, the said protrusion part exists in the position between the 1st fin and the 2nd fin of the case body wall surface, and is extended in parallel with the 2nd fin.

  According to such a wind direction adjusting device, it is possible to easily open and close the air wind direction and the air outlet by rotating the second fin for adjusting the wind direction by operating the operation knob. Further, in this case, since the protruding portion is located between the first fin and the second fin and extends continuously in parallel with the second fin, the air leaked from the gap. It can be effectively diffused by colliding with the ridges without escaping the flow.

  In such a wind direction adjusting device of the present invention, the case body includes a main body portion and a spacer that is attached to the air outlet side in the main body portion and fits the first fin. Moreover, the said protrusion part is standingly arranged by the spacer. As a result, when assembling the wind direction adjusting device, the spacer having the protrusions and the first fin can be easily assembled to the case body main body, so that the wind direction adjusting device can be easily assembled. Become.

  In the wind direction adjusting device of the present invention, the wind direction adjusting fin closes the case body outlet in a state inclined at a predetermined angle with respect to the air blowing direction of the case body (for example, a downward inclined state). Has been attached to. Further, the ridge portion is arranged at a position along the first edge of the airflow direction adjusting fin on the side where the air supplied to the case body is guided by the inclination of the airflow direction adjusting fin when the air outlet portion is closed. Has been.

  As a result, the air flowing through the case body is guided toward the first end edge side of the entire wind direction adjusting fin along the inclination of the wind direction adjusting fin in the closed state, and further, Although it leaks strongly from the gap formed between the first edge and the inner wall surface of the case, in the present invention, the leaked air flow is projected along the first edge. It can be effectively diffused by the part.

  In this case, it is preferable that the protruding portion is also disposed at a position along the second end edge of the entire wind direction adjusting fin when the wind direction adjusting fin is closed. As a result, the air flow leaking from between the second end edge of the entire wind direction adjusting fin and the inner wall surface of the case can be easily diffused by the ridge portion, so that the driver feels a crevice wind. In addition, the generation of wind noise can be more effectively prevented.

  Furthermore, the standing height of the protrusion in the present invention is set to 1 mm or more and 3 mm or less. By setting the standing height of the ridge part to be 1 mm or more, the air flow leaking from between the wind direction adjusting fin in the closed state and the wall surface of the case body is surely collided with the ridge part. Can be diffused efficiently.

  In addition, the ridge portion must be provided at a position where it does not interfere with the wind direction adjusting fin even if the wind direction adjusting fin rotates, but the height of the ridge portion is set to 3 mm or less. The protrusion can be disposed near the gap formed when the wind direction adjusting fin is closed without interfering with the wind direction adjusting fin, and the air flow can be reliably diffused as described above. Can do. Moreover, if the standing height of the ridge is 3 mm or less, the ridge can be made inconspicuous when the ridge is viewed from the outlet side (front side) of the wind direction adjusting device. The appearance of the wind direction adjusting device is not deteriorated.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a wind direction adjusting device according to the present invention will be described in detail with reference to the drawings.
Here, FIG. 1 is a perspective view when the wind direction adjusting device according to the present embodiment is viewed from the air outlet side. FIG. 2 is a schematic sectional view showing the rotation of the second fin for adjusting the wind direction in the same wind direction adjusting device, and FIG. 3 is an enlarged view of the vicinity of the lower edge of the second fin in the same wind direction adjusting device. FIG.

  The wind direction adjusting device 1 according to the present embodiment is attached to a substantially rectangular opening formed in an instrument panel of an automobile, and includes a case body 2 having both front and rear ends opened in the blowing direction, and the case body 2 The first louver 3 on the passenger compartment side (downstream side) attached to the end 21a on the air outlet side (hereinafter referred to as the air outlet 21a) and the first louver 3 attached to the upstream side of the first louver 3 2 louvers 4 and an operation knob 5 for operating rotation of the second louvers 4.

  The upstream opening of the case body 2 is connected to an air conditioner via a duct (the duct and the air conditioner are not shown). Further, the downstream opening forms an air outlet for blowing air supplied from the air conditioner into the passenger compartment. This case body 2 includes a substantially rectangular tube-shaped case main body 21, a spacer 22 attached to the air outlet side of the case main body 21, and a sealing material 23 fixed to the upstream outer peripheral surface of the case main body 21. have.

  The case body 21 has a step 21b at the air outlet 21a, and is formed so as to widen in the vertical direction (height direction) toward the passenger compartment via the step 21b. A plurality of engaging portions 25 for engaging a frame-like finisher (not shown) are provided on the outer peripheral surface of the case main body 21 on the air outlet side.

  The spacer 22 has upper and lower spacer portions 22a and 22b that are fitted to upper and lower inner wall surfaces of the air outlet portion 21a in the case body portion 21, and the upper and lower spacer portions 22a and 22b are respectively A plurality of fitting holes are formed in which vertical fins 31a to 31c, which will be described later, of the first louver 3 can be fitted with a predetermined interval.

  The first louver 3 includes three vertical fins (first fins) 31a, 31b, and 31c pivotally attached between the upper and lower spacer portions 22a and 22b, and the three vertical fins 31a. The first link member 32 that interlocks the rotation of ˜31c with each other. The 1st louver 3 can adjust the wind direction of the air which blows off into a vehicle interior in the left-right direction by rotating the vertical fins 31a-31c.

  The first louver 3 has, for example, three vertical fins 31a to 31c pivoted to the upper and lower spacer portions 22a and 22b in a state where the first link member 32 is connected, and further, the upper and lower spacer portions 22a. , 22b can be easily assembled to the case body 2 by fitting them into the case main body 21. The second louver 4 described later is assembled to the case body 2 in advance before the first louver 3 is assembled to the case body 2.

  In the first louver 3, one vertical fin 31 b arranged at the center of the three vertical fins 31 a to 31 also functions as a sliding operation guide member to which the operation knob 5 is fitted. The vertical fin 31b serving as the guide member is provided with a raised portion 35 on one surface (left surface) in a predetermined range along the vertical direction. When the operation knob 5 is attached to the vertical fin 31b, the raised portion 35 is in sliding contact with the inner surface of the operation knob 5, so that the operation knob 5 can be prevented from rattling. Furthermore, a regulating portion (not shown) for regulating the movable range of the operation knob 5 is provided on the other surface (right surface) of the vertical fin 31b.

  The operation knob 5 fitted to the vertical fin 31b includes a knob main body 5a having an internal space through which the vertical fin 31b can be inserted, an elastic member 5b fitted into the knob main body 5a, and a first upstream of the knob main body 5a. A bifurcated arm 5c projecting toward the louver 4; The elastic member 5b is made of silicon rubber, and is fitted to a protrusion 5d provided on the inner wall of the knob body 5a, and abuts against the downstream edge of the vertical fin 31b so that the vertical fin 31b is appropriately Pressing. As a result, it is possible to further prevent the operation knob 5 from rattling, and since an appropriate sliding resistance is generated when the operation knob 5 is operated, good operability is obtained, and the sliding operation is terminated. The operation knob 5 can be reliably stopped at the position, and the position can be stably maintained.

  The second louver 4 is pivotally attached to the left and right inner wall surfaces of the case body 21 and can be turned up and down to six wind direction adjusting lateral fins (second fins) 41a, 41b, 41c, 41d, 41e, 41f. And a second link member 42 that interlocks the rotation of these lateral fins 41a to 41f. At this time, the rotation shafts of the horizontal fins 41 a to 41 f are arranged in a direction orthogonal to the rotation shafts of the vertical fins 31 a to 31 c of the first louver 3.

  Further, among the plurality of horizontal fins 41a to 41f, the horizontal fin 41d that is arranged in the middle step portion and has the smallest cross-sectional shape has a shaft portion 45 that is sandwiched between the bifurcated arm 5c of the operation knob 5, and A connecting portion 46 for connecting the coaxial portion 45 and the lateral fin 41d is provided. As a result, when the operation knob 5 is operated in the vertical direction along the vertical fin 31b, the horizontal fin 41d rotates in accordance with the movement of the operation knob 5, and the other horizontal members connected by the second link member 42 are rotated. The fins 41a to 41c, 41e, and 41f also rotate as the horizontal fin 41d rotates.

  In this case, by operating the operation knob 5 within the movable range, each of the horizontal fins 41a to 41f is in a fully open state (solid line in FIG. 2) parallel to the air blowing direction and a part of the horizontal fins adjacent to each other. Since it can be rotated between a closed state (two-dotted line in FIG. 2) that overlaps each other and closes the air outlet portion 21a, the air direction of the air blown into the passenger compartment is adjusted in the vertical direction; and The air outlet 21a of the case body 2 can be opened and closed.

  Further, the horizontal fins 41a to 41f of the second louver 4 are arranged so that the plurality of horizontal fins 41a to 41f that overlap each other when the air outlet 21a is closed are directed to the air outlet so as not to impair the design of the instrument panel. So as to incline downward at a predetermined angle. For this reason, when air is supplied to the case body 2 from an air conditioner (not shown) when the horizontal fins 41a to 41f are in the closed state, the air flows in the case body 2 to the horizontal fins 41a to 41f in the closed state. It collides and is further guided toward the lower end edge of the lateral fin 42f arranged on the lowermost side along the upstream side surfaces (back surfaces) of the lateral fins 41a to 41f that are inclined downward.

  In such a wind direction adjusting device 1 of the present embodiment, when the horizontal fins 41a to 41f of the second louver 4 are rotated and held in the closed state, from the lower end edge of the horizontal fin 41f arranged on the lowermost side. In order to prevent air from leaking as much as possible, the lower spacer portion 22b is provided with a step portion 26 in which a part of the lateral fin 41f overlaps in the closed state.

  Further, on the downstream side of the stepped portion 26, between the horizontal fins 41a to 41f and the vertical fins 31a to 31c, a ridge portion 27 standing from the surface of the lower spacer portion 22b is disposed. The strip portion 27 is continuously extended in parallel with the lower end edge of the lateral fin 41f arranged on the lowermost side. In this case, as shown in FIG. 3, the ridge portion 27 is erected slightly inclined toward the upstream side in the blowing direction, and the ridge portion 27 stands from the surface of the lower spacer portion. The installation height is set to 1 mm or more and 3 mm or less.

  Further, these stepped portion 26 and ridge portion 27 prevent interference with the lateral fin 41f disposed at the lowermost position when the plurality of lateral fins 41a to 41f rotate in conjunction with each other. As shown in FIG. 3, a gap 48 having a gap of about 0.5 mm is provided between the step portion 26 and the horizontal fin 41f, and between the protrusion 27 and the rotation locus 47 of the horizontal fin 41f. In addition, a gap 49 having an interval of about 0.5 mm is provided.

  For this reason, even when the air direction adjusting device 1 rotates the horizontal fins 41a to 41f to the closed state and closes the air outlet part 21a, the gap 48 formed between the step part 26 and the horizontal fin 41f is provided. Air leaks into the passenger compartment. In particular, in the present embodiment, when the horizontal fins 41a to 41f are closed, the air supplied into the case body 2 is guided toward the lower end edge of the horizontal fin 41f arranged below as described above. Since it concentrates, the flow rate of the air leaking from the gap 48 increases, and the flow velocity is also increased.

  However, in the wind direction adjusting device 1, the ridge portion 27 erected on the lower spacer portion 22 b is arranged at a downstream position facing the gap 48 between the step portion 26 and the lateral fin 41 f. For this reason, the air flow 10 that has leaked strongly through the gap 48 directly collides with the ridge 27 and is further diffused upward by the collided ridge 27. At this time, the ridge portion 27 is slightly inclined to the upstream side, and its standing height is set to be 1 mm or more and larger than the gap 48, so that the leaked air flow 10 is ridged. The air flow 10 can be effectively diffused by reliably colliding with the portion 27.

  When the standing height of the ridge 27 is set to be larger than 3 mm, the ridge 27 is arranged further downstream in order to prevent interference between the rotating lateral fin 41f and the ridge 27. There is a need. However, if the protruding portion 27 is arranged too far downstream, the leaked air flow 10 may blow out into the vehicle interior without colliding with the protruding portion 27, so the protruding portion in the present embodiment. The standing height of the portion 27 is set to 3 mm or less as described above.

  As described above, according to the wind direction adjusting apparatus 1 of the present embodiment, even when air actually leaks from the gap 48 between the step portion 26 and the horizontal fin 41f when the horizontal fins 41a to 41f are closed, Since the leaked air flow 10 can be effectively diffused, it is possible to prevent the driver and the like from feeling a crevice wind and generating wind noise. Therefore, the wind direction adjusting apparatus 1 according to the present embodiment is provided as a high-quality product in which the conventional drawbacks are eliminated without causing discomfort to the driver or the like.

  It should be noted that the present invention is not limited to the above-described embodiment, and various modifications are possible as long as it has substantially the same configuration as the present invention and exhibits the same effects. is there. For example, in the wind direction adjusting device 1 according to the above-described embodiment, the protrusions 27 are erected only on the lower spacer portion 22b attached to the lower inner wall surface side of the case body 2. However, the present invention is not limited to this. For example, as shown in FIG. 4, the lower inner wall surface (lower space portion 22b) and the upper inner wall surface (case main body) of the case body 2 on the downstream side of the lateral fins 41a to 41f. It is also possible to provide the ridges 27 on the upper surface of the part 21.

  Thus, when the horizontal fins 41a to 41f are closed, the air flow 10 leaking from the gap 48 between the step portion 26 and the horizontal fin 41f is diffused by the lower protrusion 27 and the case body 2 The air flow leaking from the gap formed between the upper inner wall surface and the upper end edge of the entire horizontal fins 41a to 41f (that is, the upper end edge of the uppermost horizontal fin 41a) is also the upper protrusion. It can collide with 27 and can be diffused. For this reason, it can prevent more effectively that a driver | operator etc. feel a breeze and a wind noise generate | occur | produces.

  In the wind direction adjusting apparatus 1 of the above embodiment, a plurality of vertical fins 31 a to 31 c are fitted to the first louver 3 on the downstream side (vehicle compartment side), and a plurality of horizontal fins 41 a are fitted to the second louver 4 on the upstream side. ˜41f is fitted and configured. However, in the present invention, for example, a plurality of horizontal fins are fitted to the first louver on the downstream side, and a plurality of vertical fins are fitted to the second louver on the upstream side. It is also possible to configure the wind direction adjusting device so as to close the outlet.

  In this case, the protrusion that diffuses the leaked air flow is erected on the left or right inner wall surface of the case body. In the present invention, the number of fins attached to the first louver on the downstream side may be one, or may be fixed to a spacer or the like without rotating.

  Further, in the present invention, in order to simplify the structure of the wind direction adjusting device, for example, the first louver 3 and the operation knob 5 can be omitted from the wind direction adjusting device 1 of the above embodiment, and the wind direction adjusting device can be configured. It is. In this case, the operation of the wind direction adjusting horizontal fins 41a to 41f arranged on the second louver 4 can be easily performed by directly moving the horizontal fins 41a to 41f with a finger or the like.

It is the perspective view which looked at the wind direction adjustment apparatus which concerns on this invention from the blower outlet side. It is a schematic sectional drawing of the same wind direction adjustment apparatus. It is the expanded sectional view which expanded and showed the lower end edge neighborhood of the 2nd fin in the same wind direction adjusting device. It is the schematic sectional drawing which showed the modification of the wind direction adjustment apparatus which concerns on this invention. It is a schematic sectional drawing which shows the conventional wind direction adjustment apparatus. It is the expanded sectional view which expanded and showed the lower end edge neighborhood of the 2nd fin in the conventional wind direction adjusting device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air direction adjustment apparatus 2 Case body 3 1st louver 4 2nd louver 5 Operation knob 5a Knob main body 5b Elastic member 5c Arm 5d Protrusion 10 Air flow 21 Case main body 21a Air outlet part 21b Step 22 Spacer 22a Upper spacer part 22b Lower spacer part 23 Sealing material 25 Engagement part 26 Step part 27 Projection part 31a-31c Vertical fin (1st fin)
32 1st link member 35 Raised part 41a-41f Lateral fin (2nd fin)
42 Second link member 45 Shaft portion 46 Connecting portion 47 Rotation locus 48, 49 Clearance

Claims (6)

A case body (2), and at least one wind direction adjusting fin (41a to 41f) rotatably disposed at an outlet (21a) of the case body (2). by rotating operation of (41a to 41f), the wind direction adjustment device made it possible to open and close the air outlet portion (21a) with adjusting the wind direction of the air blown out through the air outlet portion (21a) (1) Because
The inner wall surface of the case body (2) has a stepped portion (26) that expands the gap between the inner wall surfaces facing the case body (2) in the direction orthogonal to the blowing direction to the outlet side,
The step portion (26) is provided at a position where the tip portions of the wind direction adjusting fins (41a to 41f) overlap when closed by the wind direction adjusting fins (41a to 41f),
The case body (2 ) at a position avoiding interference with the wind direction adjusting fins (41a to 41f) at the time of rotation of the wind direction adjusting fins (41a to 41f) and downstream of the stepped portion (26). ) And the air direction adjusting fins (41a to 41f) are spaced apart from the gap (48) and are erected at a position opposite to the gap and leak out of the gap (48). Having a ridge (27) for colliding the flow (10) ,
A wind direction adjusting device characterized by that. At least one first fin (31a to 31c) disposed in the air outlet of the case body (2) and a slidably fitted to the first fin (31b), the wind direction adjusting fin ( 41a to 41f) and an operation knob (5) for operating the rotation,
The wind direction adjusting fins (41a to 41f) are arranged as second fins on the upstream side of the first fins (31a to 31c) and in a direction intersecting the first fins (31a to 31c),
The protrusion (27) is located between the first fin (31a to 31c) and the second fin (41a to 41f) on the inner wall surface of the case body (2), and the second fin (41f) parallel to and continuously extending,
The wind direction adjusting device according to claim 1.   The case body (2) includes a main body portion (21) and a spacer (22) that is attached to the air outlet side in the main body portion (21) and fits the first fins (31a to 31c). The wind direction adjusting device according to claim 2, wherein the protrusion (27) is provided upright on the spacer (22). The wind direction adjusting fins (41a to 41f) are arranged on the case body (2) so as to close the case body outlet part in a state where the fin is adjusted at a predetermined angle with respect to the air blowing direction of the case body (2). Attached,
The ridge portion (27) is on the wind direction adjusting side which is on the side where the flow of air supplied to the case body (2) is guided by the inclination of the wind direction adjusting fins (41a to 41f) in the closed state. It is arranged at a position along the first edge of the fins (41a to 41f),
The wind direction adjustment apparatus in any one of Claims 1-3.   The protrusion (27) is also arranged at a position along the second edge that is opposite to the first edge of the entire wind direction adjusting fin (41a to 41f) in the closed state. The wind direction adjusting device according to claim 4.   The wind direction adjusting device according to any one of claims 1 to 5, wherein a standing height of the protrusion (27) is set to 1 mm or more and 3 mm or less.

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