JP6421743B2 - Thin register for air conditioning - Google Patents

Description

  The present invention relates to an air conditioning thin register that changes the direction of air conditioning air that is sent from an air conditioner and blows out from a rectangular outlet.

  An air conditioning register for changing the direction of air conditioning air sent from the air duct of the air conditioner and blown into the passenger compartment is incorporated in the instrument panel of the vehicle. As one form of this air-conditioning register, various types (hereinafter referred to as “air-conditioning thin registers”) whose dimensions are greatly different in the vertical and horizontal directions have been conventionally considered. This thin air conditioning register includes a retainer in which a ventilation path is formed. A ventilation path has a blower outlet in the downstream end of the flow direction of the air for an air conditioning. The air outlet has a rectangular shape including a pair of short sides and a pair of long sides orthogonal to both short sides and longer than both short sides.

In order to change the angle formed with respect to the short side portion of the air-conditioning air blown from the air outlet, a mechanism for changing the shape of the ventilation path is provided.
For example, the mechanism described in Patent Document 1 connects the outlet side connected to the outlet, the side of the air duct connected to the air duct, and both sides thereof as the wall material constituting the ventilation path. An intermediate portion. The blowout side portion includes a pair of plate-like portions arranged in parallel with each other in a state of being separated in a direction along the short side portion. The air duct side portion includes a pair of plate-like portions arranged in parallel with each other in a state of being separated in a direction along the short side portion. Then, when the blow side is tilted and the angle formed with respect to the short side is changed, the air duct side portion and the intermediate portion are interlocked with each other to change the shape of the ventilation path. The blowing direction is changed.

  Moreover, the mechanism described in Patent Document 2 is formed so that the ventilation path can be bent between a pair of film-like flexible membrane members arranged in a state of being separated from each other in the direction along the short side portion. . Further, the downstream portions of both flexible membrane members are sandwiched between a pair of support plates arranged in a state of being separated from each other in the direction along the short side portion. Then, by tilting both support plates, both flexible membrane members are bent in the direction along the short side, and the blowing direction of the air for air conditioning is changed.

JP2013-86518A JP 2013-86633 A

  In the mechanism described in Patent Document 1, the flow path cross-sectional area of the ventilation path does not change greatly with the change in the blowing direction of the air-conditioning air, so that pressure loss can be suppressed. However, since both the plate-like portions on the blowing side are tilted while being held in parallel, and both the plate-like portions on the air duct side are held in parallel, the structure of the mechanism becomes complicated.

  Moreover, in the mechanism described in the above-mentioned Patent Document 2, it is difficult to bend the two flexible membrane members in a state where they are held in parallel against the wind pressure of the air-conditioning air. As the air-conditioning air blowing direction is changed, both flexible membrane members are deformed, the flow passage cross-sectional area of the ventilation path is changed, and the pressure loss may not be suppressed.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an air conditioning thin register that can suppress pressure loss with a simple structure.

  An air conditioning thin register that solves the above problem includes a retainer in which a ventilation passage having an air outlet is formed at a downstream end in a flow direction of air conditioning air. The air outlet includes a pair of short sides and both short sides. A member that forms a rectangular shape that includes a pair of long side portions that are perpendicular to the portion and that is longer than both short side portions, and that changes the angle formed with respect to the short side portion of the air-conditioning air blown out from the air outlet, Each of the first fin, the second fin and the barrel extending along the long side portion, and the first fin and the second fin are arranged upstream of each long side portion in parallel with each other, and themselves The barrel is supported by the retainer by the fin shaft upstream of the first fin and the second fin and spaced apart from each other in the direction along the short side portion. With a pair of main fins At least the downstream portions of both the main fins are spaced in parallel with each other at an interval that approximates the interval between the first fin and the second fin, and an operation that is operated when changing the angle at which the air-conditioning air is blown out A transmission mechanism is provided between the member and the first fin, the second fin, and the barrel to tilt the first fin, the second fin, and the barrel in opposite directions according to the operation of the operation member. It has been.

  Here, with respect to the distance between at least the downstream portions of both the main fins, the distance approximate to the distance between the first fin and the second fin is close to the distance between the two fins so as not to affect the increase in pressure loss. Means.

  According to the above configuration, when the operation member is operated, the movement of the operation member is transmitted to each of the first fin, the second fin, and the barrel by the transmission mechanism. By this transmission, the first fin and the second fin are tilted upstream of the long side portion with the fin shaft provided at the downstream end of each fin as a fulcrum in a state in which they are parallel to each other. Further, by the transmission, the barrels upstream of the first fin and the second fin are tilted in the direction opposite to the fins with the fin axis as a fulcrum.

  Air conditioning air flows between the main fins of the barrel tilted as described above in the course of flowing through the ventilation path in the retainer, so that the air flows between the upstream end of the first fin and the upstream end of the second fin. Led to. The air-conditioning air flows between the fins, thereby changing the flowing direction, and is blown out from the outlet at the downstream end of the ventilation path. As a result, the angle formed with respect to the short side portion of the air-conditioning air blown from the air outlet is changed.

  Here, the first fin and the second fin are arranged in parallel to each other. Further, at least the downstream portions of the two main fins are spaced in parallel with each other at an interval approximate to the interval between the two fins. The flow path cross-sectional area of the ventilation path between at least the downstream portions of both main fins is approximately the same as the flow path cross-sectional area between the first fin and the second fin. Therefore, the flow passage cross-sectional area of the ventilation path does not change greatly until the air-conditioning air is blown out from the outlet through the gap between the two downstream portions, and an increase in pressure loss is suppressed.

  Further, both the main fins are formed as a part of the barrel, and with the tilting with the fin axis of the barrel as a fulcrum, the downstream portions of both the main fins are also tilted while maintaining a parallel state. Moreover, the member (member corresponding to the intermediate part of patent document 1) which connects a barrel, a 1st fin, and a 2nd fin directly is not used. From these things, the mechanism for changing the angle formed with respect to the short side portion of the air-conditioning air blown out from the outlet is a pair of plate-like portions constituting the air duct side portion and a pair of plates constituting the blow-out side portion. It becomes simpler than patent document 1 which connects a shape part to an intermediate part.

In the air-conditioning thin register, the barrel preferably includes auxiliary fins disposed between at least the downstream portions of both main fins and parallel to the downstream portion.
According to said structure, when the at least downstream part of the main fin in a barrel is mutually spaced apart in parallel, the auxiliary fin is arrange | positioned in parallel with respect to the said downstream part between both main fins. Therefore, air for air conditioning flows along auxiliary fins in addition to both main fins in the barrel. Therefore, the air for air conditioning is more easily guided between the upstream end of the first fin and the upstream end of the second fin than when the auxiliary fin is not provided. The flow direction of the air-conditioning air is guided between the first fin and the second fin without being sufficiently changed by both the main fins, and is blown out from the outlet without being sufficiently changed by both the fins ( Blow-through) is suppressed.

  In the thin air-conditioning register, the transmission mechanism is fixed to the fin shaft of the barrel and the drive gear that rotates as the operation member tilts in the direction along the short side portion, and meshes with the drive gear. The first transmission gear, the second transmission gear fixed to the fin shaft of the barrel, the first transmission gear fixed to the fin shaft of one of the first fin and the second fin, and the second transmission gear. It is preferable to include a meshed driven gear.

  According to said structure, if an operation member is tilted in the direction in alignment with the short side part of a blower outlet, a drive gear will rotate. This rotation is transmitted to the fin shaft of the barrel through the first transmission gear meshed with the drive gear. The first transmission gear is rotated, and the barrel is tilted in a direction opposite to the tilting direction of the operation member with the fin shaft as a fulcrum. Further, the second transmission gear is rotated with the rotation of the first transmission gear. The rotation of the second transmission gear is transmitted to the fin having the driven shaft fixed to the fin shaft among the first fin and the second fin via the driven gear meshed with the second transmission gear. Is tilted in the direction opposite to the barrel (same direction as the operation member) with the fin axis as a fulcrum.

In the thin air-conditioning register, the transmission mechanism preferably includes a rod that connects the first fin and the second fin at a location different from their fin axis.
According to the above configuration, when the fin with the driven gear fixed to the fin shaft is tilted as described above according to the tilt of the operation member, the tilt is transmitted via the rod. Thus, the driven gear is transmitted to the fins that are not fixed. As a result, the fin whose driven gear is not fixed to the fin shaft is tilted with the fin shaft as a fulcrum in a state parallel to the fin whose driven gear is fixed. In this way, the first fin and the second fin are tilted in the same direction as the operation member (the direction opposite to the barrel) in a state of being parallel to each other.

In the air conditioning thin register, the operation member is preferably disposed outside the air outlet.
When the operation member is disposed at the air outlet, it has ventilation resistance and causes an increase in pressure loss. In this respect, as the operating member is arranged outside the air outlet as in the above-described configuration, an increase in ventilation resistance and an increase in pressure loss due to the operating member are suppressed.

  In the air-conditioning thin register, upstream of the barrel of the retainer, the dimension in the direction along the short side is set to a dimension that matches or approximates the length of the short side. Of these, it is preferable that only the downstream portion is spaced apart from each other in parallel, and the upstream portions of the two main fins are inclined with respect to the downstream portion so that the distance between them increases toward the upstream.

  Here, with respect to the dimension in the direction along the short side upstream of the retainer barrel, the dimension approximating the length of the short side affects the increase in pressure loss with respect to the length of the short side. It means a dimension close to the extent of not affecting.

  Also, if both main fins in the barrel are spaced in parallel with each other at the same interval in the upstream portion, the barrel is tilted, and both main fins are inclined with respect to the short side portion in the outlet. The upstream portion of the main fin protrudes into the ventilation path, and becomes a flow resistance of air for air conditioning.

  In this regard, as described above, the upstream part of both main fins is inclined with respect to the downstream part so that the distance between the upstream parts increases toward the upstream side, thereby preventing the upstream part from protruding into the ventilation path. It is suppressed that it becomes ventilation resistance.

  In the thin air-conditioning register, the barrel, the first transmission gear, and the second transmission gear are configured by a single member, and the driven gear is fixed to a fin shaft of the first fin and the second fin. Preferably, the fin shaft and the driven gear are constituted by a single member.

  According to said structure, a barrel, a 1st transmission gear, and a 2nd transmission gear are comprised by the single member. Therefore, the number of parts is smaller than when these are constituted by separate members.

  Further, of the first fin and the second fin, the driven gear fixed to the fin shaft and the fin shaft and the driven gear are constituted by a single member. Therefore, the number of parts is smaller than when these are constituted by separate members.

  According to the thin register for air conditioning, pressure loss can be suppressed with a simple structure.

It is a figure showing one embodiment materialized in the thin register for air conditioning for vehicles, and is the perspective view which looked at the whole thin register for air conditioning from which the operation member was made into the neutral state from the downstream of the flow direction of air for air conditioning . The disassembled perspective view which shows a part of component of the thin register for air conditioning in FIG. The disassembled perspective view which shows a part of component of the thin register for air conditioning in FIG. The perspective view which shows a part of operation mechanism in one Embodiment. The disassembled perspective view which shows a part of component of the thin register for air conditioning in FIG. The disassembled perspective view which shows a part of component of the thin register for air conditioning in FIG. The perspective view which decomposes | disassembles and shows some components of the operation mechanism in one Embodiment. It is sectional drawing which decomposes | disassembles and shows some components of the operation mechanism in one Embodiment, (a) is a plane sectional view, (b) is a sectional side view. The front view which looked at the thin register for air conditioning of FIG. 1 from the downstream of the flow direction of the air for air conditioning. FIG. 10 is a sectional view taken along line 10-10 in FIG. 9; FIG. 11 is a partial cross-sectional view taken along line 11-11 in FIG. 9; FIG. 12 is a sectional view taken along line 12-12 in FIG. 9; FIG. 13 is a sectional view taken along line 13-13 in FIG. 9; FIG. 14 is a sectional view taken along line 14-14 of FIG. 9; FIG. 15 is a partial cross-sectional view taken along line 15-15 in FIG. Sectional drawing which extracts and shows a one part component of the transmission mechanism when an operation member was made into the neutral state with the 2nd fin and the barrel. Sectional drawing which extracts and shows a one part component of the transmission mechanism when an operation member was made into the neutral state with a 1st fin, a 2nd fin, and a barrel. FIG. 13 is a diagram corresponding to FIG. 12, and a partial cross-sectional view of the operation mechanism when the neutral operation member is tilted upward. FIG. 14 is a partial cross-sectional view of the air conditioning thin register when the neutral operation member is tilted upward, corresponding to FIG. 13. FIG. 17 is a view corresponding to FIG. 16, and is a cross-sectional view illustrating a part of the transmission mechanism together with the second fin and the barrel when the neutral operation member is tilted upward. FIG. 18 is a view corresponding to FIG. 17, and is a cross-sectional view showing a part of the components of the transmission mechanism together with the first fin, the second fin, and the barrel when the neutral operation member is tilted upward. FIG. 13 is a view corresponding to FIG. 12, and a partial cross-sectional view of the operation mechanism when the neutral operation member is tilted downward. FIG. 14 is a view corresponding to FIG. 13, and a partial cross-sectional view of the air conditioning thin register when the neutral operation member is tilted downward. FIG. 17 is a view corresponding to FIG. 16, and is a cross-sectional view illustrating a part of the transmission mechanism together with the second fin and the barrel when the neutral operation member is tilted downward. FIG. 18 is a view corresponding to FIG. 17, and is a cross-sectional view showing a part of the transmission mechanism part extracted together with the first fin, the second fin, and the barrel when the neutral operation member is tilted downward. In one embodiment, the partial plane sectional view showing a part of operation mechanism when the operation member in a neutral state is tilted rightward. It is a figure corresponding to Drawing 10, and a plane sectional view showing a part of operation mechanism when an operation member in a neutral state is tilted to the right with an upstream fin and a rod.

Hereinafter, an embodiment embodied in a thin air conditioning register for a vehicle will be described with reference to the drawings.
In the following description, it is assumed that the traveling direction (forward direction) of the vehicle is the front, the backward direction is the rear, and the height direction is the vertical direction. Moreover, about a vehicle width direction (left-right direction), a direction is prescribed | regulated on the basis of the case where a vehicle is seen from back.

  In the passenger compartment, an instrument panel is provided in front of the front seats (driver's seat and front passenger seat) of the vehicle, and a thin air conditioning register is incorporated in the center, side, etc. in the left-right direction (vehicle width direction). ing. The main functions of this air-conditioning thin register are to change the direction of air-conditioning air sent from the air-conditioner and blown out from the rectangular outlet into the passenger compartment, and to adjust the amount of air-conditioning air blown out. And so on.

  As shown in FIGS. 1, 2, and 6, the thin air conditioning register includes a retainer 10, a downstream fin group, an upstream fin group, a shut damper 75, a damper movable range defining portion 77, and an operation mechanism 80. Next, the configuration of each part constituting the thin air conditioning register will be described.

<Retainer 10>
The retainer 10 is for connecting an air duct (not shown) of the air conditioner and an opening (not shown) provided in the instrument panel. As shown in FIG. 2, the upstream retainer 11 and the downstream retainer 31 are connected. And a bezel 41. The internal space of the retainer 10 constitutes a flow path (hereinafter referred to as “ventilation path 35”) of air-conditioning air A1 (see FIG. 11). Here, regarding the flow direction of the air conditioning air A1, the side close to the air conditioner is referred to as “upstream”, “upstream side”, etc., and the side far from the air conditioner is referred to as “downstream”, “downstream side”, etc. .

  The upstream retainer 11 is a member that constitutes the most upstream portion of the retainer 10. The upstream retainer 11 includes an upstream retainer constituting portion 12 that constitutes an upper portion thereof, and an upstream retainer constituting portion 16 that constitutes a lower portion thereof.

  The lower upstream retainer component 16 is locked to the locking protrusions 13 provided at corresponding positions of the upper upstream retainer component 12 in the locking holes 17 provided on the left and right sides of the lower upstream retainer component 16. Thus, the upstream retainer constituting portion 12 is connected. The upstream retainer 11 formed in this way has a substantially rectangular tube shape in which the upstream end and the downstream end are opened and the dimension in the left-right direction (vehicle width direction) is larger than the dimension in the vertical direction.

  The downstream retainer 31 is disposed on the downstream side of the upstream retainer 11. Similar to the upstream retainer 11, the downstream retainer 31 has a substantially rectangular tube shape in which the upstream end and the downstream end are open and the dimension in the left-right direction (vehicle width direction) is larger than the dimension in the vertical direction. The downstream retainer 31 is coupled to the upstream retainer 11 by being latched by a latching protrusion 28 provided at a corresponding position of the upstream retainer 11 in a latching hole 32 provided at the upstream end of the downstream retainer 31. Has been.

  The ventilation path 35 is surrounded by four wall portions of the retainer 10. These four wall parts consist of a pair of side wall parts 36 and 37 which oppose the left-right direction (vehicle width direction), and the upper wall part 38 and the bottom wall part 39 which oppose the up-down direction. Both side wall portions 36 and 37 are opposed to each other in a state parallel to or close to each other.

  The bezel 41 is a member that constitutes the most downstream portion of the retainer 10. The bezel 41 is connected to the downstream retainer 31 by being locked to locking protrusions 33 provided at corresponding locations of the downstream retainer 31 at locking holes 42 provided at a plurality of locations.

  In the bezel 41, an air outlet 43 through which the air-conditioning air A1 is blown out is formed at a downstream end of the ventilation path 35 (see FIG. 9). The surface on the downstream side of the bezel 41 and the portion around the air outlet 43 constitutes the design surface of the air conditioning thin register.

  The air outlet 43 includes a pair of short sides 44 and a pair of long sides 45 longer than each short side 44. Both short side portions 44 extend substantially in the vertical direction while being spaced apart from each other in parallel. Both long side portions 45 extend in the left-right direction (vehicle width direction), which is a direction orthogonal to both short side portions 44, in a state of being spaced apart from each other in parallel. The air outlet 43 having such a configuration has a horizontally long rectangular shape that is longer in the left-right direction (vehicle width direction) than in the up-down direction.

  As shown in FIGS. 2 and 11, the right side portion of the bezel 41 protrudes rightward from the right side wall portion 37, and the window portion 46 formed of a circular hole is formed on the protruding portion. It is formed in a state separated from the air outlet 43 to the right.

  As shown in FIG. 6, an upper curved portion 14 that is curved so as to bulge upward is formed in the downstream portion of the upper upstream retainer constituting portion 12. Similarly, a lower curved portion 18 that is curved so as to bulge downward is formed in the downstream portion of the lower upstream retainer constituting portion 16. The upper bending portion 14 and the lower bending portion 18 are bent along an arc centered on a bearing portion 49 described later.

  As shown in FIGS. 13 and 14, the distance D <b> 1 between the upstream end of the upper curved portion 14 in the upper wall portion 38 and the upstream end of the lower curved portion 18 in the bottom wall portion 39 is a short side portion 44 of the outlet 43. Is set to an interval that matches or approximates the length L1. Here, with respect to the distance D1, the distance approximate to the length L1 of the short side portion 44 means a distance close to the length L1 that does not affect the increase in pressure loss.

  Further, an upper bulging portion 15 bulging upward is formed upstream of the upper curved portion 14 of the upper wall portion 38. Similarly, a lower bulging portion 19 bulging downward is formed upstream of the lower curved portion 18 of the bottom wall portion 39.

In the bottom wall portion 39, a groove portion 21 is formed between the lower curved portion 18 and the lower bulging portion 19, which is open on the upper surface and extends in the left-right direction (vehicle width direction).
As shown in FIGS. 2 and 6, four types of bearing portions 47, 48, 49, and 50 are provided on the left and right side wall portions 36 and 37 of the retainer 10, respectively.

  The left and right bearing portions 47 are provided between the downstream end portion of the downstream retainer 31 and the bezel 41 and in the vicinity of the upstream side of the upper long side portion 45. The left and right bearing portions 48 are provided between the downstream end of the downstream retainer 31 and the bezel 41 and in the vicinity of the upstream side of the lower long side portion 45.

  The left and right bearing portions 49 are provided between the upper bending portion 14 and the lower bending portion 18. Each of the left and right bearing portions 49 is located upstream from the left and right bearing portions 47, 48 in the flow direction of the air conditioning air A1, and in the vertical direction, the bearing portions 47, 48, Is located in the middle part.

The left and right bearing portions 50 are provided between the upper bulging portion 15 and the lower bulging portion 19. The left and right bearing portions 50 are located upstream of the left and right bearing portions 49.
In the upper wall portion 38 and the bottom wall portion 39, the bearing portions 51 are provided at a plurality of locations that are upstream of the bearing portion 49 and spaced apart from each other at substantially equal intervals in the left-right direction (vehicle width direction). ing. In the present embodiment, the bearing portion 51 of the upper wall portion 38 is provided in the vicinity of the upstream side of the upper curved portion 14, and the bearing portion 51 of the bottom wall portion 39 is provided in the vicinity of the upstream side of the lower curved portion 18 (see FIG. 14). ).

  An extension 22 is formed outside the lower upstream retainer component 16 and adjacent to the right side wall 37. In the extended portion 22, a groove portion 23 that is open on the lower surface and extends in the left-right direction (vehicle width direction) is formed at a location on the right side of the groove portion 21.

A communication hole (not shown) for communicating the groove portion 23 of the extension portion 22 and the groove portion 21 of the bottom wall portion 39 is formed in the right side wall portion 37.
In the extension part 22, a shaft part 24 protruding downward is formed in the vicinity of the downstream of the groove part 23 (see FIG. 12). Further, in the extension portion 22, a shaft portion 25 that protrudes downward is formed at a location further away from the shaft portion 24 on the downstream side.

  In the extended portion 22, a support wall portion 26 having a bearing portion 52 is formed in the vicinity of the upstream portion of the groove portion 23. The support wall portion 26 has a plate shape extending in the left-right direction (vehicle width direction) and the up-down direction. The bearing portion 52 is formed by cutting out the support wall portion 26.

  In the extension portion 22, a support wall portion 27 having a bearing portion 53 is formed at a position spaced apart to the right side of the bearing portion 50 (see FIG. 11). The support wall 27 has a plate shape extending in the flow direction and the vertical direction of the air-conditioning air A1. The bearing portion 53 is formed by cutting out the support wall portion 27.

<Downstream fin group>
As shown in FIGS. 2, 3, and 19, the downstream fin group includes three fins that change the angle α formed with respect to the short side portion 44 of the air-conditioning air A <b> 1 that blows out from the air outlet 43. Each of these fins includes a first fin 55, a second fin 61, and a barrel 65 that are formed of a hard resin. Each main part of the first fin 55 and the second fin 61 has a plate shape extending in the left-right direction (vehicle width direction) along the long side part 45 (see FIG. 14).

  The first fin 55 is disposed in the vicinity of the upstream side of the upper long side portion 45. A fin shaft 56 extending in the left-right direction (vehicle width direction) along the long side 45 is provided at the downstream end of the first fin 55. The fin shaft 56 is supported by the side wall portions 36 and 37 by the bearing portion 47. Reinforcing ribs 57 are formed at a plurality of locations separated from each other in the left-right direction (vehicle width direction) of the first fin 55 for the purpose of increasing the rigidity of the first fin 55.

  The second fins 61 are arranged in parallel with the first fins 55 in the vicinity of the upstream side of the lower long side portion 45. A fin shaft 62 extending in the left-right direction (vehicle width direction) along the long side portion 45 is provided at the downstream end of the second fin 61. The fin shaft 62 is supported by the side wall portions 36 and 37 by the bearing portion 48. Reinforcing ribs 63 are formed at a plurality of locations separated from each other in the left-right direction (vehicle width direction) of the second fin 61 in order to increase the rigidity of the second fin 61.

Accordingly, the distance between the downstream end portions of the first fin 55 and the second fin 61 is approximately the same as the length L1 (see FIG. 14) of the short side portion 44 in the outlet 43.
The barrel 65 includes a disk-shaped side wall portion 66 arranged in a state of being separated in the left-right direction (vehicle width direction), a pair of main fins 67 extending in the same direction and spanned between both side wall portions 66, An auxiliary fin 68 extending between the main fins 67 in the same direction and spanning between the side wall portions 66 is provided.

A fin shaft 69 is provided at the center of each side wall 66. Each fin shaft 69 is supported by the side wall portions 36 and 37 by the bearing portion 49.
Both main fins 67 are separated from each other in the direction along the short side portion 44 of the air outlet 43. The downstream portions 67b of both the main fins 67 are spaced apart from each other in parallel. The upstream portions 67a of the main fins 67 are inclined with respect to the downstream portion 67b so that the distance between the upstream portions 67a increases toward the upstream. The distance D2 between the two downstream portions 67b is disposed so as to approximate the length L1 of the short side portion 44 of the outlet 43 (see FIG. 14). Accordingly, the distance D2 approximates the distance between the first fin 55 and the second fin 61. Here, with respect to the distance D2, the distance approximate to the length L1 of the short side portion 44 means a distance close to the length L1 that does not affect the increase in pressure loss.

  The auxiliary fin 68 is arranged in a state parallel to the downstream portion 67b in the central portion between the two downstream portions 67b. The auxiliary fins 68 are disposed at locations spaced from the fin shafts 69 toward the downstream side. The downstream portion of the auxiliary fin 68 is located downstream from the downstream ends of both downstream portions 67b.

<Upstream fin group>
As shown in FIGS. 5, 11, and 14, the upstream fin group is for changing the angle β formed with respect to the long side portion 45 of the air-conditioning air A <b> 1 blown out from the air outlet 43. The upstream fin group is composed of a plurality of upstream fins 71 arranged upstream of the auxiliary fins 68 of the barrel 65 in the ventilation path 35. Each upstream fin 71 has the same configuration. Each upstream fin 71 is configured by a plate-like body that extends in the vertical direction within the ventilation path 35. The plurality of upstream fins 71 are disposed in the left-right direction (the vehicle width direction) at substantially equal intervals and spaced apart from each other substantially in parallel.

  Each upstream fin 71 includes a fin shaft 72 extending in the vertical direction. Each fin shaft 72 is located at a substantially central portion of the upstream fin 71 in the flow direction of the air-conditioning air A1. The fin shaft 72 for each upstream fin 71 is supported by the upper wall portion 38 and the bottom wall portion 39 by the bearing portion 51.

A connecting pin 73 protrudes downward from a lower end surface of each upstream fin 71 and away from the fin shaft 72 upstream.
<Shut damper 75>
As shown in FIGS. 6, 11, and 14, the shut damper 75 is disposed upstream of the upstream fin 71 of the ventilation path 35 in order to adjust the amount of air-conditioning air A <b> 1 that is blown from the outlet 43. Yes. The shut damper 75 has a plate shape extending in the left-right direction (vehicle width direction). The shut damper 75 includes a pair of damper shafts 76 extending in the left-right direction in a direction orthogonal to the flow direction of the air-conditioning air A1. Both damper shafts 76 are located at a substantially central portion of the shut damper 75 in the flow direction of the air-conditioning air A1. Each damper shaft 76 is supported by the left and right side wall portions 36 and 37 by the bearing portion 50 and supported by the support wall portion 27 by the bearing portion 53.

<Damper movable range defining portion 77>
As shown in FIGS. 11 and 15, the damper movable range defining portion 77 is for defining the rotational range (angle) of the damper shaft 76, and around the bearing portion 50 in the right side wall portion 37. An arc portion 78 formed and a projection 79 formed on the damper shaft 76 are provided. The protrusion 79 is formed only on a part of the circumferential direction of the damper shaft 76. The protrusion 79 is formed at a position corresponding to the arc portion 78 in the damper shaft 76 in the left-right direction (vehicle width direction). Both end portions in the circumferential direction of the arc portion 78 constitute stoppers 78a that prevent further rotation of the damper shaft 76 by the protrusions 79 coming into contact therewith. Therefore, the protrusion 79 is on the same circle as the arc portion 78 and can move (turn) in an area where the arc portion 78 is not formed. This area is an area where the damper shaft 76 is allowed to rotate. It is.

<Operation mechanism 80>
As shown in FIG. 1, the operation mechanism 80 is a mechanism that is operated when the first fin 55, the second fin 61, the barrel 65, the upstream fin 71, and the shut damper 75 are tilted, and the operation member 81 and the transmission mechanism. It is configured with TM. Further, the transmission mechanism TM includes three transmission mechanism units, a first transmission mechanism unit TM1, a second transmission mechanism unit TM2, and a third transmission mechanism unit TM3.

  The operation member 81 is a member that is operated by an occupant, and includes a spherical knob 81a and a shaft portion 81b that protrudes upstream from the knob 81a. The operation member 81 is disposed so as to be tiltable and rotatable outside the air outlet 43.

  More specifically, as shown in FIGS. 4, 7, and 12, a plate-like base 82 extending in the vertical direction and the horizontal direction (vehicle width direction) is disposed in the vicinity of the upstream side of the window portion 46 in the bezel 41. Yes. The base portion 82 is fastened to the right side portion of the bezel 41 with a screw 83.

  A substantially rectangular frame-shaped support frame portion 84 is formed at an intermediate portion in the vertical direction of the base portion 82. In the support frame portion 84, the upstream end is closed by the upstream wall portion 85, while the downstream end is open.

  The upstream wall 85 is provided with an insertion hole 86 that penetrates in the flow direction of the air-conditioning air A1. The downstream portion of the shaft 87 extending along the flow direction is inserted through the insertion hole 86. The shaft 87 is rotatably supported by the bearing portion 52 of the support wall portion 26 at the upstream portion thereof. A spherical engagement portion 88 is formed at the downstream end of the shaft 87. The engaging portion 88 is formed with a pair of protrusions 89 that protrude in a direction orthogonal to the flow direction of the air-conditioning air A1.

  Bearing portions 91 are respectively provided between the upper portion of the support frame portion 84 and the bezel 41 and between the lower portion of the support frame portion 84 and the bezel 41. In addition, bearing portions 92 are provided between the left and right sides of the support frame portion 84 and the bezel 41.

In the base portion 82, a through hole 93 that penetrates in the flow direction is formed immediately below the support frame portion 84. The through-hole 93 has an elongated shape in the left-right direction (vehicle width direction).
As shown in FIGS. 7, 8 (a), 8 (b), and 12, an outer shell member 94 having a hemispherical shell shape that is open in the upstream portion is disposed in the support frame portion 84. . A part of a spherical surface is formed on the inner surface of the outer shell member 94.

  The outer shell member 94 has a pair of support shafts 95 extending in the left-right direction (the vehicle width direction) which is the same direction as the fin shafts 56, 62, 69 of the first fin 55, the second fin 61, and the barrel 65. Yes. Both support shafts 95 are supported by both bearing portions 92 so as to be rotatable in the vertical direction with respect to the support frame portion 84. In the downstream portion of the outer shell member 94, a long hole 96 that penetrates in the flow direction of the air-conditioning air A <b> 1 and extends substantially in the left-right direction (substantially in the vehicle width direction) along its own support shaft 95 is formed. .

  Inside the outer shell member 94, an intermediate shell member 97 having a hemispherical shell shape and opened at the upstream portion is disposed. A part of a spherical surface is formed on each of the inner surface and the outer surface of the intermediate shell member 97. The intermediate shell member 97 is slidably engaged with the outer shell member 94 with the outer surface thereof in contact with the inner surface of the outer shell member 94. The intermediate shell member 97 has a pair of support shafts 98 extending in the vertical direction, which is the same direction as each fin shaft 72 of the upstream fin 71. Both support shafts 98 are supported by both bearing portions 91 so as to be rotatable in the left-right direction (vehicle width direction) with respect to the support frame portion 84. In the downstream portion of the intermediate shell member 97, a long hole 99 that penetrates in the flow direction of the air-conditioning air A1 and extends substantially in the vertical direction along its support shaft 98 is formed.

  Inside the intermediate shell member 97, an inner shell member 101 having a hemispherical shell shape and opened at the upstream portion is disposed. A part of a spherical surface is formed on the outer surface of the inner shell member 101. The inner shell member 101 is slidably engaged with the intermediate shell member 97 with the outer surface thereof in contact with the inner surface of the intermediate shell member 97.

  A part of a spherical surface is formed on the inner surface of the inner shell member 101. A pair of engagement grooves 102 extending along the flow direction of the air-conditioning air A <b> 1 are formed on the inner surface of the inner shell member 101. The engaging portion 88 of the shaft 87 is slidably engaged with the inner shell member 101 in a state where the outer surface of the shaft 87 is in contact with the inner surface of the inner shell member 101, and each projection 89 corresponds. The engagement groove 102 is engaged. Thus, the inner shell member 101 is engaged with the shaft 87 in such a manner as to transmit the rotation.

  The shaft portion 81 b of the operation member 81 is inserted through the outer shell member 94 and the intermediate shell member 97 at a portion where both the long holes 96 and 99 intersect. The shaft portion 81 b is fixed in a state of being fitted to the downstream end portion of the inner shell member 101.

  The outer shell member 94, the intermediate shell member 97, and the inner shell member 101 are used as members constituting a universal joint. Further, the outer shell member 94 constitutes a part of the first transmission mechanism part TM1. The first transmission mechanism TM1 transmits the movement of the operation member 81 in the direction (vertical direction) along the short side portion 44 to the barrel 65, the first fin 55, and the second fin 61 constituting the downstream fin group, This is a mechanism for performing the following operation. The operation is to tilt the first fin 55 and the second fin 61 and the barrel 65 in opposite directions in accordance with the operation of the operation member 81.

  As shown in FIGS. 3, 16, and 17, the first transmission mechanism portion TM <b> 1 includes a driving gear 103, a first transmission gear 104, a second transmission gear 105, a driven gear 106, and the outer shell member 94. A rod 109 is provided.

  The drive gear 103 has a side fan shape and is formed on the left support shaft 95 of the outer shell member 94. The drive gear 103 is disposed between the side wall portion 37 and the support frame portion 84 of the retainer 10 (see FIG. 11). Each tooth of the drive gear 103 is arranged along an arc centered on the support shaft 95.

  The first transmission gear 104 has a side fan shape and is formed on the fin shaft 69 on the right side of the barrel 65. The first transmission gear 104 is disposed outside the side wall 37 of the retainer 10 (see FIG. 11). Each tooth of the first transmission gear 104 is arranged along an arc centered on the fin shaft 69. The first transmission gear 104 is meshed with the drive gear 103.

  The second transmission gear 105 has a side fan shape, and is formed on the fin shaft 69 on the right side of the barrel 65 so as to overlap the first transmission gear 104. Each tooth of the second transmission gear 105 is arranged along an arc centered on the fin shaft 69.

  The driven gear 106 has a side fan shape and is formed on the fin shaft 62 on the right side of the second fin 61. The driven gear 106 is disposed outside the side wall portion 37 (see FIG. 11). Each tooth of the driven gear 106 is arranged along an arc centered on the fin shaft 62. The driven gear 106 is meshed with the second transmission gear 105.

  A connection pin 107 protrudes upstream of the fin shaft 56 on the right side of the first fin 55. Further, a connecting pin 108 protrudes upstream of the fin shaft 62 on the right side of the second fin 61. Both the connecting pins 107 and 108 are connected by a rod 109 extending substantially in the vertical direction. A parallel link mechanism that tilts the first fin 55 in synchronization with the second fin 61 so as to be parallel to the second fin 61 by the fin shafts 56 and 62, the connecting pins 107 and 108, and the rod 109. Is configured.

  As shown in FIGS. 5, 10 and 12, the intermediate shell member 97 constitutes a part of the second transmission mechanism portion TM2. The second transmission mechanism portion TM2 transmits the movement of the operation member 81 in the direction along the long side portion 45 (left-right direction, vehicle width direction) to the plurality of upstream fins 71, and uses the fin shaft 72 as a fulcrum to each upstream fin. 71 is a mechanism for tilting 71.

In addition to the intermediate shell member 97, the second transmission mechanism portion TM2 includes a drive gear 111, a transmission gear 114, a driven gear 115, and a rod 112.
The drive gear 111 has a flat fan shape, and is formed on the lower support shaft 98 of the intermediate shell member 97. The drive gear 111 is inserted through the through hole 93 of the base portion 82.

  A rod 112 extending in the left-right direction (vehicle width direction) is disposed in the groove portion 21 of the bottom wall portion 39 and the groove portion 23 of the extension portion 22 in a state of passing through the communication hole. In this rod 112, holes 113 are formed at positions spaced apart from each other at substantially equal intervals in the left-right direction (vehicle width direction), and the connecting pins 73 of the respective upstream fins 71 are inserted into these holes 113. A parallel link mechanism that tilts all the upstream fins 71 in a synchronized state so as to be parallel to each other is configured by the fin shaft 72 and the connecting pin 73 and the rod 112 for each upstream fin 71.

  A transmission gear 114 having teeth formed on the entire periphery is supported on the shaft portion 25 of the extension portion 22, and the transmission gear 114 is engaged with the drive gear 111. The shaft portion 24 of the extension portion 22 supports a driven gear 115 having teeth formed on the entire circumference thereof, and the driven gear 115 is engaged with the transmission gear 114.

  Further, in the driven gear 115, a connecting pin 116 protruding upward is formed at a location spaced radially outward from the shaft portion 24, and this connecting pin 116 is formed at the right end of the rod 112. The hole 117 is inserted.

  As shown in FIGS. 6 and 11, the inner shell member 101 constitutes a part of the third transmission mechanism part TM3. The third transmission mechanism portion TM3 is a mechanism portion for transmitting the rotation of the operation member 81 to the shut damper 75 via the shaft 87.

  In addition to the inner shell member 101, the third transmission mechanism part TM3 includes the shaft 87 and the bevel gear mechanism described above. The bevel gear mechanism is for transmitting the rotation of the shaft 87 orthogonal to the damper shaft 76 of the shut damper 75 to the damper shaft 76. The bevel gear mechanism is a combination of a drive-side bevel gear 118 formed on the upstream end of the shaft 87 and a driven-side bevel gear 119 formed on the right damper shaft 76 and meshed with the bevel gear 118. Consists of.

Next, the operation of the present embodiment configured as described above will be described.
11 and 12, the operating member 81 is located at the center of the movable region in the up-down direction and at the center of the movable region in the left-right direction (vehicle width direction), The state of each part when located is shown. The state of the operation member 81 at this time is referred to as a “neutral state”. In the neutral state, the shaft portion 81 b of the operation member 81 is located on the same axis as the shaft 87. At this time, in the damper movable range defining portion 77, as shown by the solid line in FIG. 15, the protruding portion 79 is in contact with one (left side) stopper 78 a of the arc portion 78. The shut damper 75 is in a posture (horizontal state) along the flow direction of the air-conditioning air A1 before being introduced into the ventilation path 35, that is, in a fully open state (see FIG. 13).

  As shown in FIG. 10, in the second transmission mechanism portion TM <b> 2, the connecting pin 116 of the driven gear 115 is located upstream of the shaft portion 24. In each upstream fin 71, the connecting pin 73 is located upstream of the fin shaft 72. As a result, as shown by a solid line in FIG. 11, each upstream fin 71 is in a posture along the flow direction of the air-conditioning air A <b> 1 before being introduced into the ventilation path 35. Each upstream fin 71 is substantially parallel to both side walls 36 and 37 of the retainer 10.

  As shown in FIGS. 16 and 17, in the first transmission mechanism portion TM1, the drive gear 103 and the first transmission gear 104 are engaged with each other at the teeth in the central portion in the circumferential direction. Both downstream portions 67b and the auxiliary fins 68 in the barrel 65 are in a posture (substantially horizontal state) along the flow direction of the air-conditioning air A1 before being introduced into the ventilation path 35.

  Further, the second transmission gear 105 and the driven gear 106 are meshed with each other at the teeth of the central portion in the circumferential direction. Similarly to the barrel 65, the second fin 61 is in a posture (substantially horizontal state) along the flow direction of the air-conditioning air A1 before being introduced into the ventilation path 35. The same applies to the first fin 55 connected to the second fin 61 via the rod 109. Moreover, the first fin 55 and the second fin 61 are located at substantially the same height as the downstream portions 67b.

  Therefore, as shown in FIGS. 11, 13, and 14, the air-conditioning air A <b> 1 that flows into the air-conditioning thin register first flows separately on the upper side and the lower side of the shut damper 75. The air conditioning air A1 that has passed through the shut damper 75 flows between the adjacent upstream fins 71 or between the upstream fins 71 at both ends in the left-right direction (vehicle width direction) and the side wall portions 36, 37 of the retainer 10. It flows into the barrel 65. Here, the upstream part 67a of both the main fins 67 in the barrel 65 is inclined with respect to the downstream part 67b. In the main fin 67, the distance between the two upstream portions 67a increases toward the upstream. Therefore, the air-conditioning air A1 that has flowed into the barrel 65 flows along the inclined upstream portion 67a of both the main fins 67 and is collected between the downstream portions 67b. The air conditioning air A <b> 1 flows between the downstream portion 67 b and the auxiliary fins 68 along the downstream portion 67 b and the auxiliary fins 68. Thereafter, the air-conditioning air A <b> 1 flows between the first fins 55 and the second fins 61 along the fins 55 and 61. As a result, a large amount of air-conditioning air A1 is blown straight out from the outlet 43 to the downstream side without changing the direction in which it flows in the left-right direction (vehicle width direction) or the vertical direction.

  When the knob 81a of the operation member 81 in the neutral state is picked and an upward force is applied in the direction (vertical direction) along the short side portion 44 of the air outlet 43, the force is applied to the axis of the operation member 81. It is transmitted to the inner shell member 101 fixed to the portion 81b. The inner shell member 101 is engaged with the inner surface of the inner shell member 101 in contact with the outer surface of the engaging portion 88 of the shaft 87. Further, the inner shell member 101 is engaged with the outer surface thereof in contact with the inner surface of the intermediate shell member 97.

  Further, the elongated hole 96 of the outer shell member 94 through which the shaft portion 81 b of the operation member 81 is inserted extends in the left-right direction (vehicle width direction), and this direction is a direction orthogonal to the operation direction of the operation member 81. . Further, the long hole 99 of the intermediate shell member 97 through which the shaft portion 81 b of the operation member 81 is inserted extends in the vertical direction, and this direction is the same as the operation direction of the operation member 81. Therefore, the upward force applied to the operation member 81 is transmitted to the outer shell member 94 through the wall surface of the long hole 96 extending in the left-right direction (vehicle width direction). Further, the above upward force is not transmitted to the intermediate shell member 97. This is because the shaft portion 81b of the operation member 81 moves upward along the long hole 99 extending in the vertical direction.

  The operating member 81 is engaged by the inner shell member 101 integrated therewith sliding upward with respect to the engaging portion 88 of the shaft 87 and the shaft portion 81b moving upward along the long hole 99. It is tilted upward with the joint 88 as a fulcrum. As shown in FIG. 18, the outer shell member 94 that has received an upward force through the shaft portion 81 b of the operation member 81 in the long hole 96 slides upward with respect to the intermediate shell member 97. Turn clockwise. Accordingly, the drive gear 103 formed on the support shaft 95 rotates in the clockwise direction in FIG. This rotation is transmitted to the fin shaft 69 of the barrel 65 via the first transmission gear 104 meshed with the drive gear 103 as shown in FIG. The first transmission gear 104 is rotated in the counterclockwise direction, which is the direction opposite to the drive gear 103, together with the barrel 65 and the second transmission gear 105, so that both the downstream portions 67b and the auxiliary fins 68 are downstream. It inclines so that the side becomes lower.

  The rotation of the second transmission gear 105 is transmitted to the second fin 61 via the driven gear 106 and the fin shaft 62 meshed with the second transmission gear 105, and the second fin 61 is transmitted to the fin shaft. With reference to 62 as a fulcrum, it is tilted in the opposite direction to the barrel 65 (the same direction as the operation member 81).

  The tilt of the second fin 61 is also transmitted to the first fin 55 via the rod 109 and the connecting pins 108 and 107 as shown in FIG. The first fin 55 tilts clockwise around the fin shaft 56 in synchronization with the second fin 61 in a state parallel to the second fin 61. In this way, the first fin 55 and the second fin 61 tilt in the opposite direction to the barrel 65 with the fin shafts 56 and 62 as fulcrums. The 2nd fin 61 and the 2nd fin 61 will be in the state inclined so that it might become low toward the upstream.

  Accordingly, as shown in FIG. 19, the air-conditioning air A1 that has flowed into the barrel 65 after passing through the upstream fin 71 flows between the two downstream portions 67b inclined as described above and flows along the bottom wall portion 39. Thus, it is guided between the upstream end of the first fin 55 and the upstream end of the second fin 61.

  Here, the two downstream portions 67b of the barrel 65 are spaced apart from each other in parallel, and the auxiliary fins 68 are disposed between the main fins 67 in parallel to the downstream portion 67b. Therefore, the air-conditioning air A1 flows along the auxiliary fins 68 in addition to the downstream portions 67b when passing through the barrel 65. Therefore, the air-conditioning air A <b> 1 is more easily guided between the upstream end of the first fin 55 and the upstream end of the second fin 61 than when the auxiliary fin 68 is not provided.

  The air-conditioning air A <b> 1 flows between the first fin 55 and the second fin 61, thereby changing the flowing direction, and is blown out obliquely upward from the air outlet 43. In this way, the angle α formed with respect to the short side portion 44 of the air-conditioning air A1 blown out from the outlet 43 is changed.

  Note that when an upward force is applied to the operation member 81 as described above, the force is not transmitted to the intermediate shell member 97. The intermediate shell member 97 does not rotate with the support shaft 98 as a fulcrum, and therefore the upstream fin 71 does not tilt. At this time, the inner shell member 101 is integrated with the operation member 81 and is rotated upward in the same direction as the tilt direction of the operation member 81. At this time, the inner shell member 101 slides with respect to the engaging portion 88 of the shaft 87, and only changes the engagement state (for example, positional relationship) between the engagement groove 102 and the projection 89, and the operation member 81 is tilted. Is difficult to be transmitted to the shaft 87. The shaft 87 hardly rotates, and therefore the opening degree of the shut damper 75 hardly changes.

  When the knob 81a of the operation member 81 is picked from the neutral state and a downward force is applied, as shown in FIG. The shaft portion 81b moves downward along the long hole 99, and is tilted downward with the engaging portion 88 as a fulcrum. The outer shell member 94 that has received a downward force through the shaft portion 81b of the operation member 81 slides downward with respect to the intermediate shell member 97, and thus rotates counterclockwise in FIG. Move. Accordingly, the drive gear 103 formed on the support shaft 95 rotates in the same direction. This rotation is transmitted to the fin shaft 69 of the barrel 65 via the first transmission gear 104. The first transmission gear 104 is tilted in the clockwise direction, which is the direction opposite to the tilting direction of the operation member 81, together with the barrel 65 and the second transmission gear 105, so that both the downstream portions 67b and the auxiliary fins 68 are It inclines so that it may become higher downstream.

  The rotation of the second transmission gear 105 is transmitted to the second fin 61 via the driven gear 106 and the fin shaft 62, and the second fin 61 is opposite to the barrel 65 with the fin shaft 62 as a fulcrum. It is tilted in the direction (the same direction as the operation member 81).

  The tilt of the second fin 61 is also transmitted to the first fin 55 via the rod 109 as shown in FIG. The first fin 55 tilts counterclockwise around the fin shaft 56 in synchronization with the second fin 61 in a state parallel to the second fin 61. In this way, the first fin 55 and the second fin 61 are tilted in the direction opposite to the tilting direction of the barrel 65 with the fin shafts 56 and 62 as fulcrums. The 2nd fin 61 and the 2nd fin 61 will be in the state which inclined so that it might become higher toward the upstream.

  Accordingly, as shown in FIG. 23, the air-conditioning air A1 that has flowed into the barrel 65 after passing through the upstream fin 71 flows between the two downstream portions 67b inclined as described above and flows along the upper wall portion 38. Thus, it is guided between the upstream end of the first fin 55 and the upstream end of the second fin 61.

  In this case as well, the air-conditioning air A1 flows along the auxiliary fins 68 in addition to the downstream portions 67b when passing between the main fins 67. Therefore, the air-conditioning air A <b> 1 is easily guided between the upstream end of the first fin 55 and the upstream end of the second fin 61 as compared with the case where the auxiliary fin 68 is not provided.

  The air-conditioning air A <b> 1 flows between the first fins 55 and the second fins 61, thereby changing the flowing direction, and is blown out obliquely downward from the air outlet 43. In this way, the angle α formed with respect to the short side portion 44 of the air-conditioning air A1 blown out from the outlet 43 is changed.

  Note that when a downward force is applied to the operation member 81 as described above, the force is not transmitted to the intermediate shell member 97. The intermediate shell member 97 does not rotate with the support shaft 98 as a fulcrum, and therefore the upstream fin 71 does not tilt. At this time, the inner shell member 101 is integrated with the operation member 81 and is rotated downward in the same direction as the tilt direction of the operation member 81. At this time, the inner shell member 101 slides with respect to the engaging portion 88 of the shaft 87, and only changes the engagement state (for example, positional relationship) between the engagement groove 102 and the projection 89, and the operation member 81 is tilted. Is difficult to be transmitted to the shaft 87. The shaft 87 hardly rotates, and therefore the opening degree of the shut damper 75 hardly changes.

  By the way, both the downstream parts 67b are spaced apart from each other in parallel. Further, the first fin 55 and the second fin 61 are arranged in parallel to each other. Therefore, even when the operation member 81 is tilted in the vertical direction as described above, the air-conditioning air A1 flows between the two downstream portions 67b and between the first fin 55 and the second fin 61 in the ventilation path 35. In this case, the flow path cross-sectional area does not change greatly.

  In particular, in the present embodiment, as shown in FIGS. 14 and 19, the fin shaft 56 is positioned in the vicinity of the upstream side of the upper long side portion 45, and the fin shaft 62 is positioned in the vicinity of the upstream side of the lower long side portion 45. It is located and the space | interval of the 1st fin 55 and the 2nd fin 61 approximates the length L1 of the short side part 44 of the blower outlet 43. FIG. An interval D2 between the two downstream portions 67b is set to an interval that matches or approximates the length L1 of the short side portion 44. With such a setting, the flow path cross-sectional area between the two downstream portions 67 b becomes approximately the same as the flow path cross-sectional area between the first fin 55 and the second fin 61. Therefore, the flow passage cross-sectional area does not change greatly until the air-conditioning air A1 is blown out from the outlet 43 through the first fin 55 and the second fin 61 between the two downstream portions 67b.

  Further, in this embodiment, as shown in FIG. 13, the dimension (interval D1) in the direction along the short side portion 44 matches the length L1 of the short side portion 44 upstream of the barrel 65 of the retainer 10. Or it is set to the approximate dimension. Therefore, if both the main fins 67 in the barrel 65 are spaced apart from each other in the upstream portion 67a in the same manner as the downstream portion 67b, the barrel 65 is tilted and the both downstream portions 67b are moved with respect to the short side portion 44. When inclined, the upstream portion 67a protrudes into the ventilation path 35, and becomes a flow resistance of the air-conditioning air A1.

  In this regard, in the present embodiment in which both upstream portions 67a are inclined with respect to the downstream portion 67b so that the distance between the upstream portions 67a increases toward the upstream side, as shown in FIGS. 19 and 23, the upstream portion 67a has a ventilation path. Protruding into 35 is suppressed, and ventilation resistance is suppressed.

  From the neutral state, when the knob 81a of the operation member 81 is picked and a rightward force is applied in the left and right direction (vehicle width direction), for example, the force is applied to the axis of the operation member 81. It is transmitted to the inner shell member 101 fixed to the portion 81b.

  Here, the long hole 96 of the outer shell member 94 through which the shaft portion 81 b of the operation member 81 is inserted extends in the left-right direction (vehicle width direction), and this direction is the same as the operation direction of the operation member 81. . Further, the long hole 99 of the intermediate shell member 97 into which the shaft portion 81 b of the operation member 81 is inserted extends in the vertical direction, and this direction is a direction orthogonal to the operation direction of the operation member 81.

  Therefore, the rightward force applied to the operation member 81 is transmitted to the intermediate shell member 97 through the wall surface of the long hole 99 extending in the vertical direction. Further, the above-mentioned force directed to the right is not transmitted to the outer shell member 94. This is because the shaft portion 81b of the operation member 81 moves to the right along the long hole 96 extending in the left-right direction.

  Therefore, as shown in FIG. 26, the operation member 81 has the inner shell member 101 sliding to the right with respect to the engaging portion 88 of the shaft 87 and the shaft portion 81 b moving to the right along the long hole 96. By doing so, it is tilted rightward with the engaging portion 88 as a fulcrum. The intermediate shell member 97 that has received a rightward force through the shaft portion 81b of the operation member 81 slides to the right with respect to the outer shell member 94, thereby rotating counterclockwise about the support shaft 98 as a fulcrum. To do. Accordingly, as shown in FIG. 27, the drive gear 111 formed on the support shaft 98 rotates counterclockwise. This rotation is transmitted to the transmission gear 114 meshed with the drive gear 111, and the transmission gear 114 rotates in the opposite direction to the drive gear 111. The rotation of the transmission gear 114 is transmitted to a driven gear 115 meshed with the transmission gear 114, and the driven gear 115 rotates in the same direction as the drive gear 111. Along with this, the connecting pin 116 of the driven gear 115 turns around the shaft portion 24 in the counterclockwise direction. A leftward force is applied to the rod 112 through the connecting pin 116, and the rod 112 moves to the left in the grooves 21 and 23. A leftward force is applied to the connecting pin 73 of each upstream fin 71 through the rod 112. Each upstream fin 71 tilts counterclockwise with the fin shaft 72 as a fulcrum in a synchronized state so as to be parallel to each other. As shown by a two-dot chain line in FIG. 11, each upstream fin 71 is inclined so as to be positioned to the right as it is downstream.

Therefore, the air-conditioning air A1 that has passed through the shut damper 75 can flow in the right direction by flowing between the upstream fins 71 that are inclined as described above.
The air-conditioning air A <b> 1 flows between the main fins 67 in the barrel 65 and between the first fin 55 and the second fin 61 in order, and then is changed from the outlet 43 by the upstream fin 71 ( It blows out toward the right). In this way, the angle β formed with respect to the long side portion 45 of the air-conditioning air A1 blown out from the air outlet 43 is changed.

  By the way, when the rightward force is applied to the operation member 81 as described above, the force is not transmitted to the outer shell member 94 as described above. The outer shell member 94 does not rotate with the support shaft 95 as a fulcrum, and therefore the barrel 65, the first fin 55, and the second fin 61 do not tilt. At this time, the inner shell member 101 is integrated with the operation member 81 and is rotated to the right, which is the same direction as the tilting direction of the operation member 81. At this time, the inner shell member 101 slides with respect to the engaging portion 88 of the shaft 87, and only changes the engagement state (for example, positional relationship) between the engagement groove 102 and the projection 89, and the operation member 81 is tilted. Is difficult to be transmitted to the shaft 87. The shaft 87 hardly rotates, and therefore the opening degree of the shut damper 75 hardly changes.

  In addition, when a force toward the left is applied to the operation member 81 from the neutral state, each part of the transmission mechanism TM is in the opposite direction to the case where the force toward the right is applied to the operation member 81 described above. To operate.

  When the knob 81a of the operation member 81 is picked from the neutral state and a circumferential force is applied, the force is transmitted to the inner shell member 101 fixed to the shaft portion 81b of the operation member 81. The inner shell member 101 rotates together with the operation member 81. This rotation is transmitted to at least one protrusion 89 of the engaging portion 88 of the shaft 87 via the engaging groove 102 on the inner surface of the inner shell member 101. By this transmission, the shaft 87 extending in the flow direction of the air-conditioning air A <b> 1 rotates with the driving-side bevel gear 118. The rotation is transmitted to the damper shaft 76 orthogonal to the flow direction through the driven bevel gear 119. At this time, the bevel gears 118 and 119 change the direction of the transmitted rotation. When the shut damper 75 is tilted with the damper shaft 76 as a fulcrum, the opening degree of the shut damper 75 changes to an opening degree corresponding to the rotation amount (angle) of the operation member 81. The amount of air-conditioning air A1 passing through the shut damper 75 in the ventilation path 35 is adjusted, and the amount of air-conditioning air A1 blown out from the outlet 43 is adjusted.

  When the operation member 81 is rotated as described above, the rotation is not transmitted to the outer shell member 94 and the inner shell member 101. This is because the operation member 81 is merely inserted through the outer shell member 94 and the inner shell member 101. Therefore, neither the barrel 65 nor the upstream fin 71 is tilted.

  Further, the protrusion 79 formed on the damper shaft 76 rotates as indicated by the two-dot chain line arrow in FIG. 15 as the damper shaft 76 rotates. Then, as shown by a two-dot chain line in FIG. 14, when the shut damper 75 is tilted to an angle at which the shut damper 75 is fully closed, the projection 79 comes into contact with the stopper 78a on the right side in FIG. Is regulated.

  By the way, in the present embodiment, the pair of main fins 67 and auxiliary fins 68 are formed as a part of the barrel 65, and the two main fins 67 are also in parallel with the tilting with the fin shaft 69 of the barrel 65 as a fulcrum. Tilt while maintaining. Moreover, the member (member corresponding to the intermediate part of patent document 1) which connects the barrel 65, the 1st fin 55, and the 2nd fin 61 directly is not used. Therefore, the mechanism for changing the angle α formed with respect to the short side portion 44 of the air-conditioning air A1 blown out from the air outlet 43 is a pair of plate-like portions constituting the air duct side portion and a pair of air outlet side portions constituting the air outlet side portion. It becomes simpler than the patent document 1 which connects a plate-shaped part to an intermediate part.

According to the embodiment described in detail above, the following effects can be obtained.
(1) The outlet 43 of the retainer 10 has a rectangular shape including a pair of short sides 44 and a pair of long sides 45 (FIG. 1). As a member for changing the angle α formed with respect to the short side portion 44 of the air-conditioning air A1 blown out from the air outlet 43, the retainer 10 is disposed upstream of the long side portion 45 in a state parallel to each other, and by the fin shafts 56 and 62. The first fin 55 and the second fin 61 supported by the first and second fins 61 and the barrel 65 supported by the retainer 10 by the fin shaft 69 upstream of the fins 55 and 61 are used. The barrel 65 has a pair of main fins 67 that are separated from each other in the direction along the short side portion 44 (FIG. 19). The downstream portions 67b of the two main fins 67 are spaced in parallel with each other at a distance D2 that approximates the distance between the two fins 55 and 61 (FIG. 14). A transmission mechanism TM is provided between the operation member 81 and the fins 55 and 61 and the barrel 65 to tilt the fins 55 and 61 and the barrel 65 in opposite directions in accordance with the operation of the operation member 81. (FIG. 11).

  Therefore, in the ventilation path 35, the air-conditioning air A <b> 1 passes from between the downstream portions 67 b of both the main fins 67 through the both fins 55, 61 until it blows out from the outlet 43. Can be prevented from changing greatly, and an increase in pressure loss can be suppressed (FIG. 19).

  In particular, both the fins 55 and 61 and the barrel 65 are made of hard resin, and have higher strength than the pair of flexible film members described in Patent Document 2. For this reason, when the fins 55 and 61 and the barrel 65 are tilted in the opposite directions, the high air pressure of the air-conditioning air A1 acts on the downstream portions 67b and the fins 55 and 61, but the downstream portions 67b are parallel to each other. The fins 55 and 61 can be held in a parallel state. It is possible to suppress the air passage 35 from being deformed due to the change in the blowing direction of the air-conditioning air A1 and greatly change the cross-sectional area of the flow path, and to suppress an increase in pressure loss.

  Further, both the main fins 67 are formed as a part of the barrel 65, and both the downstream portions 67b can be tilted in parallel with the tilting with the fin shaft 69 of the barrel 65 as a fulcrum. A mechanism for changing the angle α formed with respect to the short side portion 44 of the air-conditioning air A1 to be blown out can be made simpler than that of Patent Document 1.

(2) As the barrel 65, the one provided with the auxiliary fin 68 disposed in parallel with the downstream portion 67b between the downstream portions 67b is used (FIGS. 19 and 23).
Therefore, when the barrel 65 is tilted so that both the downstream portions 67b are inclined, the flow direction of the air-conditioning air A1 is not sufficiently changed by the main fins 67, and the first fin 55 and the second fin It is possible to suppress the lead between the two. As a result, the air-conditioning air A1 can be prevented from being blown out (blown out) from the outlet 43 without being sufficiently changed in direction by the fins 55 and 61.

(3) As the transmission mechanism TM, one having a drive gear 103, a first transmission gear 104, a second transmission gear 105, and a driven gear 106 is used (FIG. 16).
Therefore, when the operation member 81 is tilted in the direction along the short side portion 44 of the air outlet 43, the barrel 65 is tilted in the direction opposite to the tilt direction of the operation member 81, and the second fin 61 is moved to the barrel 65. Can be tilted in the opposite direction (the same direction as the tilting direction of the operation member 81).

  (4) As the transmission mechanism TM, a mechanism including a rod 109 that connects the first fin 55 and the second fin 61 at a location different from the fin shafts 56 and 62 is used (FIG. 17).

Therefore, the first fin 55 can be tilted in a state parallel to the second fin 61.
(5) When the operation member 81 is disposed at the air outlet 43, it becomes a ventilation resistance and causes an increase in pressure loss. In this regard, in the above-described embodiment, the operation member 81 is disposed outside the air outlet 43 (FIGS. 1 and 11).

Therefore, it is possible to suppress an increase in ventilation resistance due to the operation member 81 and, in turn, an increase in pressure loss.
(6) On the upstream side of the barrel 65 of the retainer 10, the dimension along the short side portion 44 (the distance D <b> 1 between the upper and lower curved portions 14, 18) matches or approximates the length L <b> 1 of the short side portion 44. Set to dimensions. While the downstream portions 67b of the two main fins 67 are spaced apart from each other in parallel, the upstream portions 67a of the two main fins 67 are inclined with respect to the downstream portion 67b so that the distance between them increases toward the upstream. (FIG. 13).

Therefore, when the barrel 65 is tilted (FIGS. 19 and 23), it is possible to suppress the upstream portion 67a of the main fin 67 from projecting into the ventilation passage 35 and causing ventilation resistance.
(7) The barrel 65, the 1st transmission gear 104, and the 2nd transmission gear 105 are comprised by the single member (FIG. 3).

Therefore, the number of parts and the number of assembling steps can be reduced as compared with the case where these are constituted by separate members.
(8) The 2nd fin 61, the fin axis | shaft 62, and the driven gear 106 are comprised by the single member.

Therefore, the number of parts and the number of assembling steps can be reduced as compared with the case where these are constituted by separate members.
In addition, the said embodiment can also be implemented as a modification which changed this as follows.

-The bezel 41 may be arrange | positioned in the state inclined with respect to the vertical surface.
-When sufficient rigidity is acquired in the 1st fin 55 and the 2nd fin 61, the number of the reinforcing ribs 57 and 63 may be reduced and may be omitted depending on the case.

In the barrel 65, not only the downstream portion 67b of both the main fins 67 but also the upstream portion 67a may be formed in parallel to each other.
-Depending on the distance between the downstream portions 67b, that is, if the distance is so small that the air-conditioning air A1 does not blow between the downstream portions 67b when the barrel 65 is tilted, the auxiliary fin 68 may be omitted. Good.

  The driven gear 106 in the first transmission mechanism part TM <b> 1 may be provided on the fin shaft 56 of the first fin 55 instead of the fin shaft 62 of the second fin 61 and meshed with the second transmission gear 105.

-The operation member 81 may be provided in the retainer 10 in the location different from the said embodiment on the condition that it is the exterior of the blower outlet 43. FIG.
The air conditioning thin register can be applied to an air conditioning thin register provided at a location different from the instrument panel in the passenger compartment.

  The thin air-conditioning register can be widely applied not only to the vehicle, but also to the air-conditioning air that is sent from the air-conditioning apparatus and can adjust the direction of the air-conditioning air A1 blown into the room using fins.

  The air conditioning thin register can also be applied to a type of air conditioning thin register in which the air outlet 43 is arranged vertically. In this case, as the first fin 55, the second fin 61, and the barrel 65, those extending in the vertical direction are used, and these are arranged in the horizontal direction (vehicle width direction). As the plurality of upstream fins 71, those extending in the left-right direction (vehicle width direction) are used, and these are arranged in a state of being separated from each other in the vertical direction.

  DESCRIPTION OF SYMBOLS 10 ... Retainer, 35 ... Ventilation path, 43 ... Air outlet, 44 ... Short side part, 45 ... Long side part, 55 ... 1st fin, 56, 62, 69 ... Fin axis, 61 ... 2nd fin, 65 ... Barrel 67 ... main fin, 67a ... upstream portion, 67b ... downstream portion, 68 ... auxiliary fin, 81 ... operating member, 103 ... driving gear, 104 ... first transmission gear, 105 ... second transmission gear, 106 ... driven gear, 109 ... Rod, A1 ... Air for air conditioning, D1, D2 ... Interval, L1 ... Length, α, β ... Angle, TM ... Transmission mechanism.

Claims (7)

A retainer in which a ventilation path having a blower outlet is formed at the downstream end in the flow direction of the air-conditioning air;
The outlet has a rectangular shape composed of a pair of short sides and a pair of long sides perpendicular to both short sides and longer than both short sides,
The members that change the angle formed with respect to the short side portion of the air-conditioning air blown out from the air outlet include a first fin, a second fin, and a barrel that extend along the long side portion, respectively.
The first fin and the second fin are arranged upstream of each long side portion in a state of being parallel to each other, and supported by the retainer by a fin shaft at its downstream end,
The barrel includes a pair of main fins supported by the retainer by a fin shaft upstream of the first fin and the second fin and spaced apart from each other in a direction along the short side part,
At least the downstream portions of the two main fins are spaced in parallel with each other at an interval approximate to the interval between the first fin and the second fin,
Between the operation member operated when changing the angle at which the air for air-conditioning is blown, and the first fin, the second fin and the barrel, the first fin and the A thin air conditioning register provided with a transmission mechanism for tilting the second fin and the barrel in opposite directions.   2. The air conditioning thin register according to claim 1, wherein the barrel includes auxiliary fins disposed between at least downstream portions of both main fins in parallel with the downstream portion. The transmission mechanism is
A drive gear that rotates as the operating member tilts in a direction along the short side; and
A first transmission gear fixed to the fin shaft of the barrel and meshed with the drive gear;
A second transmission gear fixed to the fin shaft of the barrel;
The thin air-conditioning register according to claim 1 or 2, further comprising a driven gear fixed to the fin shaft of one of the first fin and the second fin and meshed with the second transmission gear.   The thin air-conditioning register according to claim 3, wherein the transmission mechanism includes a rod that connects the first fin and the second fin at a location different from the fin axis.   The thin register for air conditioning according to any one of claims 1 to 4, wherein the operation member is disposed outside the air outlet. Upstream from the barrel of the retainer, the dimension along the short side is set to a dimension that matches or approximates the length of the short side,
Only the downstream part of both main fins is spaced apart in parallel with each other,
The thin air-conditioning register according to any one of claims 1 to 5, wherein the upstream portions of both main fins are inclined with respect to the downstream portion so that the distance between the upstream fins increases toward the upstream. The barrel, the first transmission gear and the second transmission gear are constituted by a single member,
The said 1st fin and said 2nd fin fixed to the said driven gear by the fin axis | shaft, and those fin axis | shafts and a driven gear are comprised by the single member. Thin register for air conditioning.

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