JP2013028228A - Air-conditioning register - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the directivity of the air-conditioning air that blows out from the air outlet without causing an increase in the number of parts.SOLUTION: In an air-conditioning register that tiltably supports a barrel 30 that has two or more long fins 31 and 32 at the part that approaches the air outlet 20 in a retainer 10, when a barrel 30 is made a neutral state that is made by making each of long fins 31 and 32 parallel to each second wall 22 including a long side Y of the air outlet 20, the one that is the nearest to the long side Y of the long fins 31 located in the air outlet 20 is assumed to be a main long fin. Then, swelling parts 23 that swell to inside of the air outlet 20, and when the barrel 30 is made to tilt to the maximum tilt position in the movable range, approach to the downstream edge of the main long fin 31 at the front side in the tilting direction are provided to both second walls 22, respectively.

Description

  The present invention relates to an air-conditioning register that adjusts the direction of air-conditioning air sent from an air-conditioning apparatus and blown into a room.

  In an instrument panel or the like of a vehicle, an air conditioning register is provided at an outlet of air for air conditioning (hot air or cold air) sent from an air conditioner. This air-conditioning register includes a cylindrical retainer that has an internal space as a ventilation path and has a square-shaped air outlet at the downstream end, and a plurality of fins that can be tilted in the retainer. In this air conditioning register, the direction of the air conditioning air blown from the air outlet (wind direction) is variable by adjusting the direction of each fin.

  By the way, in recent years, from the viewpoint of design and installation space, the air outlet as described in Patent Document 1 and Patent Document 2 has a rectangular shape as the air conditioning register and is called thin. There is a tendency to require a type. In this thin air conditioning register, among the four wall portions around the ventilation path of the retainer, the one including the short side of the air outlet is the first wall portion, and the one including the long side is the second wall portion. As the plurality of fins, a long fin extending in the direction along the long side and a short fin extending in the direction along the short side are used. The long fins are supported to be tiltable by support shafts provided on both sides in the direction along the long side, and the short fins are supported to be tiltable by support shafts provided on both sides in the direction along the short side. .

  A state in which the long fin is parallel to the second wall portion is defined as a neutral state of the long fin, and a state in which the short fin is parallel to the first wall portion is defined as a neutral state of the short fin. When both the long fins and the short fins are in a neutral state, the air-conditioning air from the air conditioner flows along the long fins and the short fins and is blown straight out from the air outlet of the retainer to the occupant side. Further, when at least one of the long fin and the short fin is inclined from the neutral state, the air for air conditioning flows along the inclined fin and is blown out from the retainer air outlet toward the inclined fin.

  By the way, in the thin air conditioning register, the number of long fins arranged in the direction along the short side is smaller than the number of short fins arranged in the direction along the long side. This is to ensure a flow path of air conditioning air between adjacent long fins. The number of fins arranged in the direction along the short side is smaller than the number of fins arranged in the direction along any side of the air outlet in a general air-conditioning register in which the air outlet has a square shape.

JP 2006-306365 A JP-A-61-188219

  However, in the thin air-conditioning register, if the number of long fins arranged in the direction along the short side of the air outlet is reduced, the direction of the air conditioning air from the air outlet when the long fin is tilted (the fin It is difficult to blow out precisely in the tilted direction), and the directivity of the air-conditioning air blown from the air outlet is not sufficiently high.

  In particular, when the long fin in the neutral state is tilted to the maximum tilt position of the movable range, a gap is generated between the second wall portion and the long fin closest to the long side among the long fins located in the air outlet. The air for air conditioning blows through this gap. This air-conditioning air that blows through affects the flow of air-conditioning air that flows between adjacent long fins and blows out from the air outlet, thereby reducing the directivity of the air-conditioning air.

  There are also air conditioning registers that have a separate mechanism for suppressing the above-mentioned decrease in directivity. In this case, however, an increase in the number of parts is unavoidable, and a thin air conditioning register that wants to reduce the number of parts is unique. It is difficult to meet the demands.

  The present invention has been made in view of such circumstances, and its purpose is to improve the directivity of air-conditioning air blown from an air outlet without causing an increase in the number of parts. Is to provide.

  In order to achieve the above object, the invention according to claim 1 comprises a cylindrical body having an internal space as a ventilation path for air conditioning air and having a rectangular air outlet at the downstream end of the ventilation path, Among the four wall portions around the ventilation path, the retainer including the short side of the air outlet as the first wall portion and the long wall including the second wall portion as the second wall portion of the cylindrical body, A spindle that has two or more long fins that extend in a direction along the long side in the retainer and are arranged in parallel in a state of being separated from each other in the direction along the short side, and extends in the direction along the long side The air conditioning register includes a barrel that is tiltably supported by the first wall portion at a location close to the air outlet, wherein the barrel connects the long fins to the second wall portions. Positioned in the air outlet when neutralized in parallel Among the long fins, the one closest to the long side is the main long fin, and both the second wall portions bulge to the inside of the air outlet, and the barrel is tilted to the maximum inclined position of the movable range. When it is done, the gist is that each of the bulging portions close to the downstream end of the main long fin on the front side in the tilting direction is provided.

  According to said structure, when a barrel is made into a neutral state, each long fin will become parallel to a 2nd wall part. The air-conditioning air flowing between the adjacent main long fins flows parallel to the second wall portion along the two main long fins. In addition, the air-conditioning air that flows between the main long fin and the second wall portion adjacent thereto flows along the main long fin and the second wall portion in parallel to the second wall portion.

  On the other hand, when the barrel is tilted with the support shaft as a fulcrum and the long fin is tilted with respect to the second wall portion, the air-conditioning air flowing between the adjacent main long fins is along the two main long fins. Thus, the direction can be changed in the inclination direction of the main long fin.

  And the air for air conditioning which passed the barrel as mentioned above blows off from the air outlet of the downstream end of a retainer. When the barrel is in a neutral state, the air-conditioning air that has passed between the adjacent main fins and the air-conditioning air that has passed between the main fins and the second wall are parallel to the second wall from the air outlet. Blow out. On the other hand, when the barrel is tilted from the neutral state, the air-conditioning air that has passed between adjacent main long fins blows out from the air outlet in the direction in which the main long fins are inclined. Thus, according to the first aspect of the present invention, the necessary directivity is ensured for the air-conditioning air blown from the air outlet.

  Further, when the barrel is tilted to the maximum tilt position of the movable range, the air-conditioning air flowing between the main long fins on the front side in the tilting direction and the second wall portion flows into the main long fins and the second wall portion. Try to flow along. At this time, if there is a gap between the downstream end of the main long fin on the front side in the tilt direction and the second wall portion, the air for air conditioning blows through between the main long fin and the second wall portion. The air-conditioning air that has blown through the air affects the air-conditioning air that passes between the adjacent long fins and blows out from the air outlet, and may reduce the directivity.

  In this regard, in the first aspect of the invention, due to the tilting of the barrel, the downstream end of the main fin is close to the bulging portion provided on the second wall portion of the retainer, and the downstream end and the bulging portion. The gap between them becomes smaller. For this reason, the air-conditioning air that has flowed in between the main long fins on the front side in the tilting direction and the second wall portion is difficult to blow through between the main long fins and the second wall portion, and passes between the adjacent long fins. It hardly affects the air-conditioning air blown out from the air outlet. As a result, the directivity of the air-conditioning air blown from the air outlet is improved.

In addition, since no separate member is added, the directivity improvement effect can be obtained without increasing the number of parts.
According to a second aspect of the present invention, in the first aspect of the present invention, when the barrel is in the neutral state, a secondary long fin disposed inside the retainer and outside the air outlet is disposed on the long side. The gist is to further have fins.

  According to said structure, the sub-long fin which comprises some long fins in a barrel exhibits the function which determines the direction of the flow of the air for air conditioning like other long fins. When the barrel is in a neutral state, the sub-long fin is also parallel to the second wall portion, like the other long fins. At this time, the sub-long fin is located outside the air outlet. The air-conditioning air that has flowed between the sub-long fin and the adjacent long fin (main fin) flows parallel to the second wall portion along the long fins. And this air for an air conditioning blows off in parallel with a 2nd wall part from an air exit.

  On the other hand, when the barrel is tilted from the neutral state, the air-conditioning air that flows between the main long fin and the adjacent sub long fins flows along the main and sub long fins. The direction can be changed in the inclination direction of the sub-long fins. The air-conditioning air is blown out from the air outlet in the direction in which the main and sub long fins are inclined.

As a result, the directivity of the air-conditioning air blown out from the air outlet is further improved as compared with a barrel long fin that is not provided with the sub-long fin.
According to a third aspect of the present invention, in the second aspect of the present invention, the sub-long fin is provided at a location close to the second wall portion, and the downstream end of the sub-long fin is the main long fin. The main point is that it is located on the upstream side of the downstream end.

According to said structure, since the clearance gap between a sub-long fin and a 2nd wall part is small, the air for an air conditioning which blows off from an air outlet through this clearance gap is few.
In addition, since the downstream end of the sub-long fin is located on the upstream side of the downstream end of the main long fin, when the barrel is tilted from the neutral state, the sub-long fin on the front side in the tilting direction hits the second wall portion. Interference is unlikely to occur. In addition, it is unlikely that the secondary long fin on the rear side in the tilting direction is exposed to the downstream side from the air outlet of the retainer to impair the appearance.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the retainer extends in a direction along the short side and is separated from each other in a direction along the long side. In this state, there are provided a plurality of short fins that are arranged in parallel and further supported so as to be tiltable on a support shaft that extends in a direction along the short side, and at least a part of each short fin is provided in the barrel. The short shaft is supported by the barrel, and the short fins are connected by a connecting rod.

  According to said structure, the direction of the air for an air conditioning which flows through the ventilation path of a retainer is determined also with a short fin in addition to the said long fin. When one of the plurality of short fins is made parallel to the first wall portion, the other short fins connected to each other via the connecting rod are also made parallel to the first wall portion. Therefore, the air-conditioning air that has flowed in between the adjacent short fins flows in parallel with the first wall portion along both the short fins.

  On the other hand, when one of the plurality of short fins is tilted with the support shaft as a fulcrum, the tilt is transmitted to the other short fins via the connecting rod. By this transmission, the plurality of short fins are tilted in the same direction while maintaining a parallel state (in synchronization). All the short fins are inclined with respect to the first wall portion. The air-conditioning air that has flowed in between the adjacent short fins can be turned in the inclination direction of the short fins along the short fins. And the air for an air conditioning which passed the short fin as mentioned above blows off from an air exit.

  Here, since at least a part of each short fin is disposed in the barrel, it overlaps with each long fin in the direction along the ventilation path. Therefore, in the direction along the ventilation path, the total length of each short fin and each long fin is shorter than when the short fins are not arranged in the barrel. As a result, it is possible to reduce the size of the air conditioning register in the direction along the ventilation path and to make the air conditioning register compact in the same direction.

  In addition, when each short fin moves away from the air outlet in the direction along the ventilation path, even if the air for air conditioning is changed in direction of flow by the short fin, the first wall portion or barrel is blown before blowing out from the air outlet. Is likely to hit. Such a tendency is strengthened when the short fin is arranged upstream of the barrel in the direction along the ventilation path. In this case, the air-conditioning air hitting the first wall portion or the barrel is changed in the flow direction in the direction along the first wall portion or the barrel, and is blown out from the air outlet in this state.

  However, in the invention according to the fourth aspect, as described above, at least a part thereof is disposed in the barrel. The short fin is closer to the air outlet than the case where the short fin is arranged upstream of the barrel in the direction along the ventilation path. Therefore, the air-conditioning air whose direction of flow has been changed by the short fins is less likely to hit the first wall portion or the barrel, and is easily blown out from the air outlet in the inclination direction of the short fins.

  According to a fifth aspect of the present invention, in the invention of the fourth aspect, the short fins are formed longer in the direction along the ventilation path than the main long fins in a state of being parallel to the first wall portion. In the short fin, the gist is that a portion of 1/3 or more of the length in the direction along the ventilation path is disposed in the barrel.

  According to said structure, in the state by which each short fin was made parallel to the 1st wall part, in a short fin, the part 1/3 or more of the length about the direction along a ventilation path overlaps with a long fin. Therefore, the effect of the invention according to claim 4 can be efficiently obtained, such as reducing the size of the air-conditioning register in the direction and reducing the size.

The gist of the invention of claim 6 is that, in the invention of claim 4 or 5, the downstream end of the short fin is located at a location close to the downstream end of the main long fin.
Since the barrel is disposed at a location close to the air outlet in the retainer, according to the above configuration, the downstream end of the short fin in the direction along the ventilation path is located at a location close to the air outlet. Therefore, the effect of the invention according to claim 4 can be efficiently obtained such that the air-conditioning air whose direction of flow is changed by the short fins is blown from the air outlet without hitting the first wall portion or the barrel. become.

  According to the air conditioning register of the present invention, the directivity of the air conditioning air blown from the air outlet can be improved without causing an increase in the number of parts.

The perspective view which shows the external appearance shape of the air-conditioning register | resistor for vehicles in one Embodiment which actualized this invention. The side sectional view of the register for air conditioning in which the barrel was made into the neutral state in one embodiment. The plane sectional view of the register for air conditioning in which each short fin was made into the neutral state in one embodiment. The side sectional view of the register for air conditioning in which the barrel was tilted to the maximum inclination position of one (downward) of the movable range in one embodiment. It is a figure which shows a comparative example, and the sectional side view of the air-conditioning register | resistor in which the barrel was tilted to the maximum inclination position of one (downward) of a movable range.

Hereinafter, an embodiment in which the present invention is embodied in a vehicle air-conditioning register will be described with reference to the drawings.
In the following description, the forward direction of the vehicle is described as forward, and front, rear, upper, lower, left, and right are defined based on the forward direction. In each figure, “front” indicates the front side of the vehicle and “rear” indicates the rear side of the vehicle.

  In the passenger compartment, an instrument panel (not shown) is disposed in front of the driver seat and the passenger seat. Low-profile air-conditioning registers with a shorter vertical dimension (lower height) than the dimension in the vehicle width direction (left-right direction) are incorporated at both ends and the center of the instrument panel in the vehicle width direction. ing. The main function of the air-conditioning register is to adjust the direction (wind direction) of air sent from an air-conditioning apparatus (not shown) and blown into the passenger compartment.

  FIG. 1 shows the external shape of the air-conditioning register of this embodiment. The air-conditioning register includes a retainer 10, a barrel 30 having a plurality of long fins, a group of short fins, and the like. Next, the configuration of each unit will be described.

<Retainer 10>
As shown in FIGS. 1 and 2, the retainer 10 has an internal space as a flow path for air conditioning air A (hereinafter referred to as “ventilation path 9”), and a main body 11 formed of a resin material. And a bezel 16. The main body 11 is a cylindrical body that extends in the direction along the ventilation path 9 (the flow direction of the air-conditioning air A). In the following description, “upstream” and “downstream” refer to upstream and downstream in the direction along the ventilation path 9. Regarding the same direction, the direction closer to the air conditioner is referred to as “upstream”, and the direction farther away is referred to as “downstream”. In this connection, the upstream end indicates the upstream end, and the downstream end indicates the downstream end.

  The main body 11 is composed of a portion 12 on the upstream side and a portion 13 on the downstream side with respect to the central portion in the direction along the ventilation path 9. The upstream end of the upstream portion 12 is opened in a horizontally long rectangular shape, and this opening constitutes an inlet for air-conditioning air A to the air-conditioning register.

  The downstream portion 13 has a larger cross section in the vertical direction than the upstream portion 12 as a cross section orthogonal to the direction along the ventilation path 9. In the boundary part 14 of both the parts 12 and 13, the said cross section is expanding up and down gradually toward the downstream side. In the said boundary part 14, the cross-sectional shape (side cross section) in alignment with the ventilation path 9 has comprised circular arc shape (refer FIG. 2). Locking holes 15 are formed above and below the downstream end of the downstream portion 13.

  The bezel 16 includes a square annular mounting portion 17 and a square frame-shaped frame portion 18 provided integrally with the downstream end of the mounting portion 17 and constituting a design surface of the air-conditioning register. Locking claws 19 are formed above and below the upstream end of the attachment portion 17. The bezel 16 is disposed on the downstream side of the main body 11, and the mounting portion 17 is inserted into the portion 13, and the locking claw 19 is engaged with the corresponding locking hole 15 from the inside, thereby the main body portion. 11. A part of the opening in the mounting portion 17 of the bezel 16 constitutes an outlet for air-conditioning air A (hereinafter referred to as “air outlet 20”) from the air-conditioning register. In the present embodiment, the portion of the opening of the bezel 16 having the smallest opening area is used as the air outlet 20.

  Here, in order to distinguish each side of the air outlet 20 having a horizontally long rectangular shape, a side extending in the vertical direction is referred to as “short side X”, and a side extending in the vehicle width direction (left-right direction) is referred to as “long side Y”. ".

  The ventilation path 9 is surrounded by four wall portions of the retainer 10. In order to distinguish these four wall portions, a portion including the short side X of the air outlet 20 is referred to as a first wall portion 21, and a portion including the long side Y is referred to as a second wall portion 22. In the present embodiment in which the air outlet 20 has a horizontally long rectangular shape, the wall portion facing in the vehicle width direction (left-right direction) becomes the first wall portion 21, and the wall portion facing in the vertical direction is the second wall portion 22. It becomes.

  Further, in the retainer 10 of the present embodiment, the bulging portions 23 that bulge to the inside of the air outlet 20 are integrally formed on the second wall portions 22. Specifically, the upper bulging portion 23 bulges downward, and the lower bulging portion 23 bulges upward. The bulging direction front end (bulging end) of each bulging portion 23 is located immediately downstream of the sub-long fin 32 when the barrel 30 is in a neutral state to be described later (see FIG. 2). Further, the bulging end of each bulging portion 23 is close to the downstream end of the main long fin 31 on the front side in the tilting direction when the barrel 30 is tilted to the maximum tilt position of the movable range (see FIG. 4).

<Barrel 30>
As shown in FIGS. 2 and 3, the barrels 30 extend in the retainer 10 in the direction along the long side Y of the air outlet 20 (vehicle width direction) and are separated from each other in the direction along the short side X (vertical direction). In this state, two or more (four in this embodiment) long fins 31 and 32 arranged in parallel and a pair of side walls 33 arranged on both sides of the long fins 31 and 32 in the direction along the long side Y With. These long fins 31 and 32 and both side walls 33 are formed of a resin material. The plurality of long fins 31 and 32 are each formed in a flat plate shape having a predetermined width in the direction along the ventilation path 9.

  Each side wall 33 extends in a direction (vertical direction) along the short side X at a location close to the first wall portion 21 of the retainer 10, and is integrally formed with the long fins 31 and 32. From each side wall 33, a support shaft 34 projects toward the adjacent first wall portion 21. In other words, both the support shafts 34 extend in the direction along the long side Y. The barrel 30 is supported by the first wall portion 21 on these support shafts 34 so as to be tiltable at locations close to the air outlet 20 in the direction along the ventilation path 9.

  Here, with respect to the barrel 30, in the direction along the short side X (or long side Y) of the air outlet 20, the side approaching the center of the short side X (or long side Y) is referred to as “inside”. The side away from the center is called “outside”.

  In addition, the state of the barrel 30 (see FIG. 2) when the long fins 31 and 32 are parallel to the second wall portions 22 is referred to as a “neutral state”. The state of the barrel 30 (see FIG. 4) when inclined with respect to the two wall portions 22 is referred to as an “inclined state”.

  Further, in order to distinguish the plurality of long fins 31 and 32, the middle two sheets in the direction along the short side X are referred to as “main long fins 31”. Two sheets located outside are referred to as “sub-long fins 32”. When the barrel 30 is in a neutral state, the downstream end of each main long fin 31 is located at or near the air outlet 20. Further, the two main long fins 31 constitute the long fin 31 located in the air outlet 20 that is closest to the long side Y. A bearing hole 35 is formed at the upstream end of each main long fin 31.

  Both the sub-long fins 32 are provided at locations close to the second wall portion 22 (see FIG. 2), and are located inside the retainer 10 and outside the air outlet 20 when the barrel 30 is in a neutral state. . Further, the outer surface of each sub-long fin 32 is a curved surface that bulges outside the air outlet 20. In the neutral state of the barrel 30, the upstream end of each of the sub-long fins 32 is located at a location close to the upstream end of each of the main long fins 31 in the direction along the ventilation path 9. On the other hand, the downstream end of each sub-long fin 32 is located upstream of the downstream end of the main long fin 31, that is, the air outlet 20. Accordingly, each sub-long fin 32 is shorter than each main long fin 31 in the direction along the ventilation path 9.

  Further, if the distance between the main long fins 31 is D1, and the distance between each main long fin 31 and the adjacent sub long fin 32 is D2, the barrel 30 is formed so as to satisfy the relationship of the distance D1> the distance D2. Has been.

<Short fin group>
As shown in FIGS. 2 and 3, the short fin groups are arranged in parallel in the retainer 10 so as to extend in the direction along the short side X of the air outlet 20 and are separated from each other in the direction along the long side Y. It consists of a plurality of (7 in this embodiment) resin short fins 40. Each short fin 40 is formed in a flat plate shape having a predetermined width in the direction along the ventilation path 9. Each short fin 40 is formed longer in the direction along the ventilation path 9 than each sub-long fin 32 and each main long fin 31. In a state where each short fin 40 is parallel to the first wall portion 21, in each short fin 40, a portion of 1/3 or more of the length L1 (see FIG. 3) in the direction along the ventilation path 9 is a barrel. 30. In the present embodiment, a region between the downstream end of each short fin 40 and a portion that is separated from the downstream end to the upstream side by 1/3 or more of the length L1 is disposed in the barrel 30.

  With the above arrangement, the short fins 40 overlap the long fins 31 and 32 in the direction along the ventilation path 9. Therefore, in the direction along the ventilation path 9, the total length of each short fin 40 and each long fin 31, 32 is shorter than the case where each short fin 40 is not arranged in the barrel 30.

  In order to realize a configuration in which at least a part of each short fin 40 is disposed in the barrel 30 as described above, the upstream portion of each short fin 40 is configured by one base 41, and the downstream portion is It is constituted by three projecting portions 42, 43, 42 projecting downstream from the base portion 41 in a state of being separated from each other along the short side X. Each of the two protrusions 42 is slightly larger than the thickness of the main long fin 31 from the protrusion 43 of the intermediate part in the direction along the short side X. A pair of support shafts 44 project from the projecting portion 43 at the intermediate portion toward the projecting portions 42 on both sides. In other words, both the support shafts 44 extend in the direction along the short side X.

  And the protrusion part 43 of the intermediate part is inserted and arrange | positioned toward the downstream from the upstream between the said main long fins 31. As shown in FIG. The downstream end of the projecting portion 43 is located at a location approaching the downstream ends of both the main long fins 31 in the direction along the ventilation path 9, that is, a location approaching the air outlet 20. Further, the protruding portions 42 on both side portions are inserted and arranged from the upstream side toward the downstream side between the main long fins 31 and the adjacent sub long fins 32. Further, both the support shafts 44 of the respective short fins 40 are engaged with the bearing holes 35 of the respective main long fins 31 so as to be tiltable.

  Among the plurality of short fins 40, an operation knob 45 is attached to the one located at the center in the direction along the long side Y. Further, in each short fin 40, a connecting shaft 46 is provided on the upstream side of the support shaft 44. In the present embodiment, a notch 47 is formed below the base 41 in each short fin 40, and the connecting shaft 46 extending downward from the notch 47 is provided in the short fin 40. The connecting shaft 46 for each short fin 40 is connected by a long connecting rod 48 extending in the direction along the long side Y. The connecting rod 48 is used to transmit the tilt of one short fin 40 (short fin 40 with the operation knob 45 attached) to the other short fin 40 (short fin 40 with no operation knob 45 attached). It is.

  In addition, about the short fin group and the short fin 40, the state (refer FIG. 3) when each said short fin 40 becomes parallel with respect to each 1st wall part 21 is called a "neutral state." A state (not shown) when inclined with respect to each first wall portion 21 is referred to as an “inclined state”.

Next, the operation of the air conditioning register of the present embodiment configured as described above will be described.
In this air conditioning register, most of the air conditioning air A flowing through the ventilation path 9 of the retainer 10 passes through the barrel 30. At this time, the flow direction of the air-conditioning air A is determined by each long fin (both main long fins 31 and both sub long fins 32) and each short fin 40.

  2 and 3 show an air conditioning register in which the barrel 30 is in a neutral state and each short fin 40 is in a neutral state. At this time, both the sub-long fins 32 are located outside the air outlet 20 in the retainer 10. The bulging portions 23 are positioned on the downstream sides of the two sub-long fins 32, respectively. For this reason, when the occupant views the air conditioning register from the downstream side, both the sub-long fins 32 are hidden on the upstream side of the bulging portion 23 and are not visible to the occupant.

  The neutral state of each short fin 40 is obtained by making one of the plurality of short fins 40 (with the operation knob 45 attached) parallel to the first wall portion 21. When the short fins 40 are made parallel to the first wall portion 21, the other short fins 40 connected to each other via the connecting rod 48 are also made parallel to the first wall portion 21. The air conditioning air A that flows between the adjacent short fins 40 and the air conditioning air A that flows between the short fins 40 and the side walls 33 at both ends in the direction along the long side Y enter the short fins 40 and the side walls 33. By flowing along, it flows parallel to the first wall portion 21. The air-conditioning air A is blown out parallel to the first wall portion 21 from the air outlet 20 at the downstream end of the retainer 10.

  In the neutral state of the barrel 30, both the main long fins 31 and both the sub long fins 32 are parallel to the second wall portion 22. The air-conditioning air A flowing between the adjacent main long fins 31 flows in parallel to the second wall portion 22 along the two main long fins 31. Further, the air-conditioning air A that has flowed in between the main long fin 31 and the adjacent sub long fin 32 flows in parallel to the second wall portion 22 along the main and sub long fins 31 and 32. . The air conditioning air A that has passed between the adjacent main long fins 31 and the air conditioning air A that has passed between the main and sub long fins 31 and 32 are both blown out in parallel to the second wall portion 22 from the air outlet 20. . In addition, since the clearance gap between each sub long fin 32 and the 2nd wall part 22 is small, the air-conditioning air A which blows off from the air outlet 20 through this clearance gap is few.

  On the other hand, when one of the plurality of short fins 40 (with the operation knob 45 attached) is tilted with both the support shafts 44 as fulcrums, the tilt is transmitted via the connecting shaft 46 and the connecting rod 48. To other short fins 40. By this transmission, the plurality of short fins 40 are tilted in the same direction while maintaining a parallel state (in synchronization). All the short fins 40 are inclined with respect to the first wall portion 21. The air-conditioning air A that has flowed into between the adjacent short fins 40 and the like can be changed in the inclination direction of the short fins 40 along the short fins 40. The air conditioning air A is blown out from the air outlet 20 in the direction in which each short fin 40 is inclined.

  Further, when the barrel 30 is tilted in a part of the movable range with the support shaft 34 as a fulcrum (not tilted to the maximum tilt position) and tilted with respect to the second wall portion 22, both the main long fins 31 and both The sub-long fin 32 is inclined with respect to the second wall portion 22. With this tilting, the main long fin 31 on the front side in the tilting direction approaches the bulging portion 23 on the front side, and the main long fin 31 on the rear side in the tilting direction moves away from the bulging portion 23 on the rear side. The air-conditioning air A that has flowed in between the adjacent main long fins 31 can be changed in the inclination direction of the main long fins 31 along the two main long fins 31. The air-conditioning air A flowing between the main long fin 31 and the adjacent sub long fin 32 is along the main and sub long fins 31, 32. The direction can be changed in 32 inclination directions. At this time, the downstream end of the main long fin 31 on the front side in the tilting direction of the barrel 30 is separated from the bulging portion 23 on the front side. However, the clearance between the downstream end of the main fin 31 and the bulging portion 23 is smaller than the clearance when the barrel 30 is in the neutral state. The air-conditioning air A is blown out from the air outlet 20 in the direction in which the main and auxiliary long fins 31 and 32 are inclined. At this time, since the gaps between the sub-long fins 32 and the second wall portion 22 are small, the air-conditioning air A blown from the air outlet 20 through the gaps is very small.

  In addition, since the downstream end of each sub-long fin 32 is located upstream from the downstream end of the main long fin 31, when the barrel 30 is inclined, the sub-long fin 32 on the front side in the tilting direction is the second. It is difficult to hit the wall 22. In addition, the sub-long fin 32 on the rear side in the tilting direction is unlikely to be exposed downstream from the air outlet 20 of the retainer 10.

  Furthermore, when the barrel 30 is tilted to the maximum tilt position in one of the movable ranges (downward in FIG. 4), the main long fin 31 and the second wall portion 22 on the front side in the tilt direction (lower side in FIG. 4). The air-conditioning air A that has flowed in tends to flow along the main long fins 31 and the second wall portion 22. At this time, as shown in FIG. 5, the bulging portion 23 is not provided in the second wall portion 22, and the downstream end of the main long fin 31 on the front side in the tilting direction (the lower side in FIG. 5), If there is a gap G between the two wall portions 22, the air-conditioning air A that flows between the main fins 31 and the second wall portion 22 blows through the gap G. The air-conditioning air A that has blown through the air affects the air-conditioning air A that passes between the adjacent main long fins 31 and blows out from the air outlet 20, thereby reducing directivity. In FIG. 5, the same elements as those in FIG. 4 are denoted by the same reference numerals. Further, in FIG. 5, for convenience of explanation, the retainer 10 is illustrated in a state where the main body portion 11 and the bezel 16 are integrated.

  In this regard, in the present embodiment in which the bulging portion 23 is provided in the second wall portion 22, as shown in FIG. 4, the main long fin on the front side in the tilting direction (the lower side in FIG. 4) due to the tilting of the barrel 30. The downstream end of 31 is close to the bulging portion 23, and the gap between the downstream end and the bulging portion 23 is reduced. Therefore, the air-conditioning air A that has flowed in between the main long fin 31 and the second wall portion 22 on the front side in the tilting direction is difficult to blow through the gap between the main long fin 31 and the second wall portion 22, and the adjacent main air fins 31. Air-conditioning air A that passes between the long fins 31 and blows out from the air outlet 20 is hardly affected. Even if it has an impact, the impact is negligible.

The same applies to the case where the barrel 30 is tilted to the other maximum (upward) tilt position of the movable range. Therefore, description is abbreviate | omitted here.
By the way, when each short fin 40 moves away from the air outlet 20 in the direction along the ventilation path 9, the air-conditioning air A is not blown out from the air outlet 20 even if the direction of the flow is changed by the short fin 40. The possibility of hitting the first wall portion 21 or the barrel 30 (side wall 33) increases. This tendency becomes stronger as each short fin 40 moves away from the air outlet 20 to the upstream side. In particular, when the short fins 40 are arranged on the upstream side of the barrel 30 in the direction along the ventilation path 9, the above phenomenon is likely to occur. In this case, the air-conditioning air A hitting the first wall portion 21 and the barrel 30 (side wall 33) is changed in the flow direction in the direction along the first wall portion 21 and barrel 30 (side wall 33). It will blow out from the air outlet 20.

  However, in the present embodiment, as described above, many portions of the short fins 40 (portions of 1/3 or more of the length L1) are arranged in the barrel 30 so that the downstream ends of the short fins 40 are , It is located at a location approaching the downstream end of each main fin 31, that is, a location approaching the air outlet 20. Therefore, the air-conditioning air A whose flow direction has been changed by the short fins 40 can be easily blown out from the air outlet 20 in the inclination direction of the short fins 40 without hitting the first wall portion 21 or the barrel 30 (side wall 33).

According to the embodiment described in detail above, the following effects can be obtained.
(1) An air-conditioning register that supports the barrel 30 in a tiltable manner at a location close to the air outlet 20 in the retainer 10 in the direction along the ventilation path 9 is assumed. In this air-conditioning register, when the barrel 30 is in a neutral state in which the main and sub-long fins 31 and 32 are parallel to the second wall portions 22, of the long fins located in the air outlet 20 The one closest to the long side Y is defined as the main long fin 31 (FIG. 2). Then, both the second wall portions 22 bulge to the inside of the air outlet 20, and when the barrel 30 is tilted to the maximum tilt position of the movable range, it approaches the downstream end of the main long fin 31 on the front side in the tilt direction. The bulging part 23 is provided, respectively (FIG. 4).

Therefore, the necessary directivity of the air-conditioning air A blown from the air outlet 20 can be secured by the two main long fins 31.
Further, when the barrel 30 is tilted to the maximum tilt position of the movable range, the air-conditioning air A is blown from the air outlet 20 through between the main long fin 31 and the second wall portion 22 on the front side in the tilt direction. The directivity of the air-conditioning air A can be improved.

Moreover, since no separate member is added, the directivity improvement effect can be obtained without increasing the number of parts.
(2) When the barrel 30 is in a neutral state, the secondary long fins 32 located inside the retainer 10 and outside the air outlet 20 are further provided in the barrel 30 as long fins (FIGS. 2 and 4).

Therefore, the directivity of the air-conditioning air A can be further improved as compared with the long fin 32 of the barrel 30 in which the sub long fin 32 is not provided.
(3) The sub-long fin 32 is provided at a location close to the second wall portion 22, and the downstream end of the sub-long fin 32 is positioned upstream of the downstream end of the main long fin 31 (FIGS. 2 and 4). .

Therefore, it is possible to suppress the air-conditioning air A from passing between the sub-long fin 32 and the second wall portion 22 and blowing out from the air outlet 20.
Further, when the barrel 30 is tilted, the secondary long fin 32 on the front side in the tilting direction is prevented from colliding with the second wall portion 22, and the secondary long fin 32 on the rear side in the tilting direction is prevented from interfering with the air outlet 20. It can suppress that it exposes to the downstream side from this and impairs an appearance.

  (4) A plurality of short fins 40 are provided in the retainer 10. At least a part (many parts) of each short fin 40 is disposed in the barrel 30. The support shaft 44 of each short fin 40 is supported by the barrel 30, and each short fin 40 is connected by a connecting rod 48 (FIGS. 2 and 3).

Therefore, the size of the air-conditioning register in the direction along the ventilation path 9 can be reduced and downsizing can be achieved.
In addition, the air-conditioning air A whose flow direction has been changed by the short fins 40 is blown out from the air outlet 20 in the inclination direction of the short fins 40 without hitting the first wall portion 21 or the barrel 30 (side wall 33). be able to.

  (5) Each short fin 40 is formed longer than each main long fin 31 in the direction along the ventilation path 9. In a state where each short fin 40 is made parallel to the first wall portion 21, a portion of 1/3 or more of the length L1 in the direction along the ventilation path 9 for each short fin 40 is disposed in the barrel 30. (Figure 3).

Therefore, it is possible to efficiently obtain the effect of the above (4) such that the size of the air-conditioning register in the direction along the ventilation path 9 is reduced and the size is reduced.
(6) The downstream end of the short fin 40 is positioned at a location close to the downstream end of the main long fin 31 (FIG. 3).

  Therefore, the effect of the above (4) in which the air-conditioning air A whose flow direction is changed by the short fins 40 is blown out from the air outlet 20 without hitting the first wall portion 21 or the barrel 30 (side wall 33) is efficient. Can get well.

Note that the present invention can be embodied in another embodiment described below.
<About barrel 30>
The barrel 30 may have another long fin disposed between the pair of main long fins 31.

In this case, three or more long fins are located in the air outlet 20, and two of them that are closest to the long side Y are the main long fins 31.
The barrel 30 may not have the sub-long fin 32 as the long fin.

<About the short fin 40>
Each short fin 40 may be formed in the same direction as the main long fin 31 or shorter than the main long fin 31 in the direction along the ventilation path 9.

  In each short fin 40, the short fin 40 is arrange | positioned in the barrel 30 on condition that the 1/3 or more part of length L1 about the direction along the ventilation path 9 overlaps with the main long fin 31. The length may be changed.

Each short fin 40 may be supported by the main long fin 31 so as to be tiltable by a support shaft made of a member different from the short fin 40.
Each short fin 40 may be supported by the sub long fin 32 so as to be able to tilt instead of or in addition to the main long fin 31.

-Each short fin 40 may be supported so that tilting is possible in the spindle provided in one place or three places or more about the direction along the short side X. As shown in FIG.
Each short fin 40 may overlap with all of the main long fins 31 in the direction along the ventilation path 9 or may overlap with only a part of the main long fins 31.

<Applicable points>
-This invention is applicable also to the register | resistor for an air conditioning arrange | positioned in the location different from an instrument panel in a vehicle interior.

-The air-conditioning register of the present invention is not limited to a vehicle and can be widely applied as long as it can adjust the direction of air sent from an air conditioner and blown into the room.
<Others>
-This invention is applicable also to the register | resistor for an air conditioning arrange | positioned so that the air outlet 20 may become vertically long. In this case, in the retainer 10, the wall portion facing each other in the vertical direction becomes the first wall portion 21, and the wall portion facing each other in the vehicle width direction becomes the second wall portion 22. The plurality of long fins 31 and 32 are arranged in the vehicle width direction, and the short fins 40 are arranged in the vertical direction.

  DESCRIPTION OF SYMBOLS 9 ... Ventilation path, 10 ... Retainer, 20 ... Air outlet, 21 ... 1st wall part, 22 ... 2nd wall part, 23 ... Swelling part, 30 ... Barrel, 31 ... Main long fin (long fin), 32 ... Sub-long fins (long fins), 34, 44 ... support shafts, 40 ... short fins, 48 ... connecting rod, A ... air for air conditioning, L1 ... length of short fins, X ... short sides, Y ... long sides.

Claims (6)

The internal space is made of a cylindrical body having a ventilation path for air-conditioning air and having a rectangular air outlet at the downstream end of the ventilation path, and the air out of the four wall portions around the ventilation path in the cylindrical body A retainer including a short side of the outlet as a first wall portion and a long side including a second wall portion;
The retainer has two or more long fins that extend in the direction along the long side and are arranged parallel to each other in the direction along the short side, and extend in the direction along the long side. An air conditioning register comprising a barrel supported tiltably on the first wall at a location close to the air outlet in the shaft;
When the barrel is in a neutral state in which the long fins are parallel to the second wall portions, the long fin closest to the long side among the long fins located in the air outlet is the main length. With fins,
The second wall portions bulge toward the inside of the air outlet, and when the barrel is tilted to the maximum tilt position of the movable range, the bulges close to the downstream end of the main long fin on the front side in the tilt direction. An air-conditioning register characterized by being provided with outlets. 2. The air conditioning register according to claim 1, wherein the barrel further includes, as the long fin, a sub-long fin disposed in the retainer and outside the air outlet when the barrel is in the neutral state. 3. The sub-long fin is provided at a location close to the second wall portion,
The air-conditioning register according to claim 2, wherein a downstream end of the sub-long fin is located upstream of a downstream end of the main long fin. Inside the retainer, they extend in a direction along the short side and are arranged in parallel in a state of being separated from each other in the direction along the long side, and are further supported so as to be tiltable on support shafts extending in the direction along the short side. Are provided with a plurality of short fins,
At least a portion of each of the short fins is disposed within the barrel, and the support shaft of each of the short fins is supported by the barrel;
Furthermore, each said short fin is the register | resistor for an air conditioning as described in any one of Claims 1-3 connected with the connection rod. Each of the short fins is formed longer in the direction along the ventilation path than the main long fin in a state of being parallel to the first wall portion,
5. The air-conditioning register according to claim 4, wherein in each of the short fins, a portion of 1/3 or more of the length in the direction along the ventilation path is disposed in the barrel. The air-conditioning register according to claim 4 or 5, wherein the downstream end of the short fin is located at a location close to the downstream end of the main long fin.

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