JP2015068559A - Register for air conditioning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress interference between a movable fin and a retainer.SOLUTION: A register for air conditioning includes: a retainer 10; a movable fin 25; a joint ball 18; a connection part 17; and a socket part 33. The retainer 10 has a cylindrical shape and has a spherical surface part 14 in one part. The movable fin 25 is arranged in the spherical surface part 14, and has a flow passage for air A for air conditioning. The connection part 17 is provided in the center of the retainer 10, and the joint ball 18 is provided at a downstream end of the connection part 17. The socket part 33 is provided in the center of the movable fin 25, and male-female coupled with the joint ball 18. In the register for air conditioning of such a configuration, a flow direction of the air A for air conditioning is changed by the movable fin 25 being rotated around the joint ball 18 and the inclination of the flow passage being changed. Furthermore, the movable fin 25 has a disc-shape, and has an operation knob 34. The flow passage for the air A for air conditioning is configured by a large number of hexagonal holes 26 penetrating the movable fin 25.

Description

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

  An air conditioning register is incorporated in an opening provided in an instrument panel or the like of the automobile. As one form of this air conditioning register, a type called a round register is known (for example, see Patent Document 1).

  As shown in FIG. 13, the air conditioning register includes a retainer 80 and a movable fin 84 as main components. The retainer 80 has a cylindrical shape and has a spherical portion 81 in part. A connecting portion 82 is provided at the center of the retainer 80. A plurality of support legs 83 extend radially from the upstream end of the connecting portion 82 and are connected to a location on the upstream side of the spherical surface portion 81 on the inner wall surface of the retainer 80. The movable fin 84 includes a cylindrical portion 85 disposed in the spherical portion 81 and a blade 86 disposed in the cylindrical portion 85, and is also referred to as a barrel. A joint ball 87 is provided at the downstream end of the connecting portion 82, and a socket portion 89 is provided at the center of the movable fin 84. The socket part 89 is male and female coupled to the joint ball 87.

  In the air conditioning register having the above configuration, the space surrounded by the cylindrical portion 85 of the movable fin 84 and the blade 86 functions as a flow path of the air A for air conditioning. Therefore, the air-conditioning air A that has flowed into the retainer 80 and passed through the support legs 83 flows along the wall surface of the cylindrical portion 85 and the blades 86, whereby the flow direction is determined. By performing a turning operation such as pushing the blade 86, the movable fin 84 is turned around the joint ball 87. With this rotation, the inclination of the cylindrical portion 85 and the blade 86 changes, and the flow direction of the air-conditioning air A is changed.

Japanese Utility Model Publication No. 6-55820

  However, in the conventional air-conditioning register, the weight of the movable fin 84 itself is large, and when the operation of rotating the movable fin 84 is performed, the connecting portion 82 bends due to the weight of the movable fin 84 and the operation load, There is a possibility that the movable fin 84 may interfere with the spherical surface portion 81 of the retainer 80.

  This invention is made | formed in view of such a situation, The objective is to provide the register | resistor for air conditioning which can suppress interference with the retainer of a movable fin.

  An air-conditioning register that solves the above-described problem is a retainer having a cylindrical shape and a spherical portion formed in part, a movable fin that is disposed in the spherical portion and has a flow path for the air-conditioning air, A connecting portion provided in a central portion of the retainer; a joint ball provided in one of the central portion of the movable fin and the connecting portion; provided in the other of the central portion of the movable fin and the connecting portion; and An air-conditioning register comprising: a socket portion for male-female coupling to a joint ball, wherein the flow direction of the air-conditioning air is changed by turning the movable fin about the joint ball to change the inclination of the flow path. And the said movable fin comprises disk shape and has an operation knob, and the said flow path is comprised by many holes which penetrate the said movable fin.

  According to the above configuration, in the air conditioning register, a large number of holes provided in the disk-shaped movable fin function as air conditioning air flow paths. Therefore, the air-conditioning air that has flowed into the retainer flows along the wall surface of the hole of the movable fin, so that the flow direction is determined. When the operation knob is operated, the movable fin is rotated about the joint ball. With this rotation, the inclination of the hole changes and the flow direction of the air-conditioning air is changed.

  Here, since the movable fin has a disk shape as described above and has a small thickness, the movable fin is lighter than the type (barrel type) in which the blade is disposed inside the cylindrical portion. . For this reason, even if an operation for rotating the movable fin is performed through the operation knob and the weight of the movable fin and the operation load act on the connecting portion, the movable fin may interfere with the spherical surface portion of the retainer. Hateful.

In the air-conditioning register, it is preferable that a large number of hexagonal holes are provided at regular intervals as the flow path in substantially the entire movable fin.
According to the above configuration, the flow channel is configured by a large number of hexagonal holes, so that the flow channel opening area is reduced as compared with the case where the flow channel is configured by a large number of holes having other shapes, for example, a large number of round holes. It becomes possible to enlarge. As the opening area increases, the ventilation resistance decreases and the pressure loss decreases.

  In the air-conditioning register, the socket portion includes a socket body and a bearing member formed of an elastic material and attached to the socket body and having a spherical recess, and the socket portion is in the spherical recess. It is preferable that the joint ball is rotatably connected to the male and female.

  According to said structure, a frictional force arises between the joint balls with the elastic holding force with respect to the joint balls of a bearing member. Due to this frictional force, a load is applied to the operation of rotating the movable fin around the joint ball, and a good operation feeling is obtained.

When the rotation operation is stopped, the posture (inclination) of the movable fin is held by the elastic gripping force of the bearing member.
In the air conditioning register, the connecting portion has a long shape extending along a central axis of the retainer, the joint ball is provided at a downstream end of the connecting portion, and the socket portion is It is provided at the center of the movable fin, and further, a cylindrical guide member is covered on the outer side of the connecting portion, and the guide member is provided with a diameter-expanding portion that increases in diameter toward the downstream side. preferable.

  According to said structure, the air for an air conditioning flows along a guide member near the center axis line of a retainer. This air-conditioning air flows along the enlarged diameter portion, so that the flow direction can be changed in the direction away from the central axis toward the downstream side, that is, in the direction away from the bearing member.

  Therefore, air conditioning air flowing near the central axis of the retainer is prevented from directly touching the bearing member and the socket body. As a result, the air-conditioning air flow is unlikely to be hindered by the bearing member and the socket body.

Further, the elastic gripping force of the bearing member changes due to the influence of the temperature of the air-conditioning air, and the friction between the bearing member and the joint ball fluctuates and the operation load is suppressed from changing.
In the air conditioning register, it is preferable that a fixed fin having a flow path for the air conditioning air that has passed through the hole is fixed downstream of the movable fin.

  According to the above configuration, when the air conditioning register is viewed from the downstream side, the downstream end surface of the fixed fin appears as a part of the design surface, and the downstream end surface of the movable fin passes through the fixed fin flow path. Looks as part of. Here, the movable fin changes its inclination by turning, whereas the fixed fin does not move. Therefore, compared with the case where no fixed fin is provided, the change in the design of the air-conditioning register when the movable fin is rotated can be reduced.

  According to the air conditioning register, interference with the retainer of the movable fin can be suppressed.

It is a figure which shows one Embodiment of the register | resistor for air conditioning, and is a perspective view which shows the register | resistor for air conditioning before an operation knob is attached. (A) is a front view of the air-conditioning register before a socket part and an operation knob are attached, (b) is a partial front view showing a part of (a) in an enlarged manner. The disassembled perspective view of the register | resistor for an air conditioning. FIG. 4 is a sectional view taken along line 4-4 of FIG. 2A (however, the socket portion and the operation knob are also shown). The perspective view which extracts and shows the principal part of both shut dampers and a damper drive mechanism from FIG. FIG. 6 is a sectional view taken along line 6-6 in FIG. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. Sectional view taken along line 8-8 in FIG. 2A (however, the socket part and the operation knob are also shown). FIG. 9 is a partial plan sectional view showing a state in which both shut dampers of FIG. 8 are tilted to a closed position. FIG. 5A is a side sectional view showing a state in which the movable fin of FIG. 4 is tilted, and FIG. 5B is a partial side sectional view showing a part of FIG. (A) is a front view which shows the modification of a movable fin, (b) is a partial front view which expands and shows a part of (a). The fragmentary flat sectional view which shows the modification of the peripheral part of a shut damper. The fragmentary sectional side view of the conventional air-conditioning register.

Hereinafter, an embodiment of an air-conditioning register mounted on an automobile will be described with reference to FIGS.
In the following description, the traveling direction (forward direction) of the vehicle is assumed to be 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 motor vehicle is seen from back.

  In the passenger compartment, an instrument panel (not shown) is provided in front of the driver's seat and front passenger seat of the automobile. Air-conditioning registers are incorporated in both sides and the center of the instrument panel in the vehicle width direction. The main functions of the air-conditioning register are to change the direction (wind direction) of air-conditioning air (hot air or cold air) sent from the air-conditioning system and blown into the vehicle interior, or to blow air-conditioning air into the vehicle interior It is to cut off.

  The main part of the air-conditioning register has the appearance shown in FIG. As shown in FIGS. 1 and 3, the air conditioning register includes a retainer 10, a movable fin 25, a fixed fin 40, a bezel 45, shut dampers 50 and 55, and a damper drive mechanism 65. Next, each part which comprises the register | resistor for an air conditioning is demonstrated.

<Retainer 10>
The retainer 10 is for connecting a ventilation duct (not shown) of the air conditioner and an opening (not shown) provided in the instrument panel, and has a cylindrical shape with both ends open. The internal space of the retainer 10 constitutes a flow path of the air-conditioning air A (hereinafter referred to as “ventilation path 11”).

  The upstream portion of the retainer 10 in the flow direction of the air-conditioning air A is configured by an introduction portion 12 having a polygonal cylindrical shape. Further, the downstream portion of the retainer 10 in the flow direction is constituted by a cylindrical lead-out portion 13. Further, with respect to the flow direction of the retainer 10, a portion between the introduction portion 12 and the lead-out portion 13 is constituted by a spherical portion 14 having a spherical inner surface and an outer surface.

  As shown in FIGS. 3 and 4, at the downstream end of the introduction portion 12, a cylindrical shape extending along the central axis C on the central axis C of the retainer 10 and having the upstream end and the downstream end opened. The adherend part 15 is formed. A plurality of support legs 16 each having a plate shape extend radially from the adherend 15, that is, outward in the radial direction. Here, four support legs 16 extend radially around the adherend 15 every 90 degrees. Each support leg 16 is connected to the inner wall surface of the introduction portion 12. In the present embodiment, the adherend portion 15 and the support legs 16 are integrally formed with the introduction portion 12.

  A long connecting portion 17 is inserted into the adherent portion 15 from the downstream side of the adherent portion 15 and is locked to the adherent portion 15. The connecting portion 17 extends downstream from the adherend portion 15 along the central axis C. The downstream end of the connecting portion 17 is located at the center of the spherical portion 14, and a joint ball 18 is provided at the downstream end. A truncated cone portion 19 having a diameter increasing toward the downstream side is provided at a location away from the joint ball 18 by a predetermined distance in the connecting portion 17. The joint ball 18 and the truncated cone part 19 are formed as a part of the connecting part 17.

  In the connecting portion 17, a part of the portion located in the spherical surface portion 14, specifically, the outer side of the truncated cone portion 19 and the upstream side portion thereof are covered with a cylindrical guide member 21. ing. A diameter-enlarged portion 22 is formed on the outer side of the truncated cone portion 19 of the guide member 21 so as to expand toward the downstream side corresponding to the truncated cone portion 19.

<Moving fin 25>
The movable fin 25 is disposed in the spherical surface portion 14 and has a flow path for air-conditioning air A. In the present embodiment, the movable fin 25 has a disk shape having a slightly smaller diameter than the inner diameter of the spherical surface portion 14. The movable fin 25 is formed in a curved surface shape that gently bulges downstream. The movable fin 25 is desirably formed to a thickness of 2.5 to 3.0 mm. If the thickness exceeds 3 mm, the pressure loss may exceed the allowable range.

  Except for the central portion and the outer peripheral portion of the movable fin 25, a large number of holes are regularly penetrated in the thickness direction. In the present embodiment, a large number of hexagonal holes 26 are provided at regular intervals in the portion of the movable fin 25 (see FIG. 2B). These hexagonal holes 26 constitute a flow path of the air-conditioning air A in the movable fin 25. Further, the movable fin 25 has a honeycomb-like honeycomb structure as a whole due to the numerous hexagonal holes 26. The thickness of the part between the adjacent hexagonal holes 26 is substantially uniform in any part.

  A hole 27 is formed in the central portion of the movable fin 25, and the socket body 28 is inserted and locked in the hole 27 from the downstream side. The socket body 28 is formed with a mounting recess 29 that opens at the upstream end thereof. A bearing member 31 made of an elastic material such as synthetic rubber or soft synthetic resin is attached inside the attachment recess 29. The bearing member 31 is formed with a spherical recess 32 that opens at the upstream end thereof. The spherical recess 32 is formed to have a slightly smaller diameter than the joint ball 18. By fitting the spherical recess 32 into the joint ball 18, the bearing member 31 is male and female coupled to the joint ball 18 so as to be rotatable in the spherical recess 32. The socket body 33 and the bearing member 31 constitute a socket portion 33.

  An operation knob 34 is integrally formed at the center of the socket body 28. The operation knob 34 includes a shaft portion 35 that extends downstream from the center portion of the socket body 28, and a substantially disc-shaped grip portion 36 that is provided at the downstream end of the shaft portion 35.

A part of the end face on the downstream side of the movable fin 25 constitutes a part of the design surface when the air-conditioning register is viewed from the downstream side.
<Fixing fin 40>
The fixed fins 40 are disposed on the downstream side of the movable fins 25 and are attached and fixed to the lead-out portion 13 of the retainer 10 from the downstream side. The fixed fin 40 is an annular large-diameter portion 41 attached to the lead-out portion 13, and an annular small-diameter portion 42 that is located at the center of the large-diameter portion 41 and has a smaller diameter than the large-diameter portion 41. And a plurality of (four) blades 43 connecting the small-diameter portion 42 and the large-diameter portion 41 (see FIG. 2A). In the present embodiment, the small diameter portion 42 is disposed in the upstream portion in the large diameter portion 41. A plurality (four) of blades 43 are provided around the small diameter portion 42 at equal angles (every 90 degrees). These blades 43 are inclined so as to be positioned on the upstream side with respect to the flow direction of the air-conditioning air A as they approach the small-diameter portion 42. Further, between the large-diameter portion 41 and the small-diameter portion 42 and between the adjacent blades 43, a flow path of the air-conditioning air A is configured.

Further, a part of the end face on the downstream side of the fixed fin 40 constitutes a part of the design surface when the air-conditioning register is viewed from the downstream side.
<Bezel 45>
The bezel 45 has a substantially annular shape. The bezel 45 is attached to the retainer 10 in such a manner that the bezel 45 can rotate around the central axis C in a state where many portions of the large-diameter portion 41 of the fixed fin 40 are covered. The end surface on the downstream side of the bezel 45 constitutes a part of the design surface when the air conditioning register is viewed from the downstream side.

<Shut damper 50, 55>
As shown in FIGS. 6 and 8, the shut dampers 50 and 55 are for opening and closing the ventilation path 11 in the introduction portion 12 of the retainer 10, and a pair of shut dampers 50 and 55 are provided. The main part of one of the shut dampers 50 is composed of a plate-shaped main body 51. A shaft 52 projects upward from the upper end of the main body 51, and a shaft 53 projects downward from the lower end. The shut damper 50 is supported by the pair of lateral wall portions 12a that are opposed to each other in the vertical direction in the introduction portion 12 by both upper and lower shafts 52 and 53.

  As shown in FIGS. 7 and 8, the main part of the other shut damper 55 is composed of a plate-like main body 56. A shaft 57 protrudes upward from the upper end of the main body 56 and a shaft 58 protrudes downward from the lower portion. Here, the lower shaft 58 of the shut damper 55 has a different structure from the lower shaft 53 of the shut damper 50. As shown in FIG. 3, the shaft 58 is divided into an upper divided shaft portion 61 constituting the upper portion thereof and a lower divided shaft portion 62 constituting the lower portion and connected to the upper divided shaft portion 61. ing. As shown in FIGS. 7 and 8, the shut damper 55 is supported by the upper and lower shafts 57 and 58 so as to be tiltable on both lateral wall portions 12 a of the introduction portion 12.

  Both the shut dampers 50 and 55 can tilt between an open position and a closed position. As shown in FIG. 8, both the shut dampers 50 and 55 are substantially parallel to the pair of vertical wall portions 12 b facing each other in the vehicle width direction at the introduction portion 12, as shown in FIG. To do. On the other hand, in the closed position, both shut dampers 50 and 55 are inclined with respect to both vertical wall portions 12b so as to be positioned on the downstream side as approaching the central axis C as shown in FIG. In this closed position, the outer edge portions of the shut dampers 50 and 55 come into contact with or approach the both lateral wall portions 12a and the vertical wall portions 12b of the introducing portion 12, and the ventilation path 11 is closed.

<Damper drive mechanism 65>
As shown in FIGS. 3 and 4, the damper drive mechanism 65 is a mechanism for opening and closing both the shut dampers 50 and 55, and is configured by a combination of a plurality of gears. More specifically, a rack gear 46 is formed along the same direction at the upstream end of the outer peripheral portion of the bezel 45 and at a part (lower part) in the circumferential direction.

  A support shaft 66 protrudes substantially downward from the bottom of the boundary portion between the spherical portion 14 and the lead-out portion 13, and a pinion gear 67 is rotatably supported on the support shaft 66. A pinion gear 67 is meshed with the rack gear 46. Further, a support shaft 68 protrudes downward from the bottom of the boundary portion between the introduction portion 12 and the spherical surface portion 14, and a gear 69 is rotatably supported on the support shaft 68. The gear 69 includes a large gear portion 71 having a relatively large diameter and a small gear portion 72 provided integrally on the large gear portion 71. The large gear portion 71 is meshed with the pinion gear 67.

  On the other hand, a fan-shaped gear 54 is formed on the lower shaft 53 of the shut damper 50. A fan-shaped gear 63 is formed on the upper split shaft portion 61 of the shut damper 55. These gears 54 and 63 are meshed with each other at a location close to the inner bottom portion of the introduction portion 12.

A fan-shaped gear 64 is formed on the lower split shaft portion 62 of the shut damper 55 below the introduction portion 12. The gear 64 is engaged with the small gear portion 72.
Of the above-described components of the air conditioning register, those other than the bearing member 31 are made of a resin material harder than the bearing member 31.

Next, the operation of the air conditioning register of the present embodiment configured as described above will be described.
FIG. 9 shows a state when both shut dampers 50 and 55 are in the closed position. In this state, the ventilation path 11 is blocked by the shut dampers 50 and 55. The flow of the air conditioning air A in the ventilation path 11 is blocked, and the blowing of the air conditioning air A from the flow path of the fixed fin 40 is stopped.

  On the other hand, FIG. 8 shows a state when both shut dampers 50 and 55 are in the open position. In this state, the ventilation path 11 is fully opened, and the air-conditioning air A flows separately on the left side and the right side of the main body parts 51 and 56 for each of the shut dampers 50 and 55. The air conditioning air A that has passed through the main body portions 51 and 56 flows along the support legs 16, the movable fins 25, and the like, and then blows out from the flow path of the fixed fins 40.

  The position switching of the shut dampers 50 and 55 from the closed position to the open position and the position switch from the open position to the closed position are performed through the turning operation of the bezel 45. When the bezel 45 is rotated in the circumferential direction by the occupant, the rotation is performed via the rack gear 46, the pinion gear 67, the gear 69, the gear 64, and the shaft 58, as shown in FIGS. The main body 56 is transmitted to one of the shut dampers 55 and tilts in a predetermined direction with the upper and lower shafts 57 and 58 as fulcrums (see FIG. 7). This tilt is transmitted to the other shut damper 50 via gears 63 and 54, and the main body 51 tilts in the opposite direction to the main body 56 with the upper and lower shafts 52 and 53 as fulcrums (see FIG. 6).

The following description is based on the assumption that both shut dampers 50 and 55 are in the open position.
As shown in FIGS. 8 and 10A, near the central axis C of the retainer 10, the air-conditioning air A flows downstream along the connecting portion 17. The bearing member 31 and the socket body 28 are located on the downstream side of the connecting portion 17. Therefore, if the air-conditioning air A flowing near the center axis C touches the bearing member 31 or the socket body 28, the air-conditioning air A may be prevented from flowing.

  In this regard, in this embodiment in which the guide member 21 having the enlarged diameter portion 22 is placed on the outside of the connecting portion 17, the air-conditioning air A that flows near the central axis C flows along the enlarged diameter portion 22. Thus, the flow direction can be changed in the direction away from the central axis C toward the downstream side, that is, the side away from the bearing member 31 and the socket body 28. Accordingly, the air-conditioning air A is less likely to be blocked by the bearing member 31 and the socket body 28, and flows smoothly downstream.

  In the air conditioning register, a large number of holes (hexagonal holes 26) provided in the disk-shaped movable fins 25 function as air conditioning air A flow paths. Therefore, the flow direction of the air-conditioning air A is determined by flowing along the wall surface of each hexagon hole 26.

  As shown by the solid lines in FIGS. 4, 6, 7, and 8, the wall surfaces of the hexagonal holes 26 are substantially parallel to the central axis C when the movable fins 25 are substantially orthogonal to the central axis C. . Therefore, the air-conditioning air A flows straight downstream along the central axis C.

  From the above state, when a force is applied to the operation knob 34 to change the flow direction of the air-conditioning air A, the force is transmitted to the movable fin 25 through the socket portion 33, and the movable fin 25 is centered on the joint ball 18. It can be rotated. At this time, an appropriate frictional force is generated between the bearing member 31 and the joint ball 18 due to the elastic gripping force of the bearing member 31 with respect to the joint ball 18. Due to this frictional force, an appropriate load (operation load) is applied to the operation of rotating the movable fin 25 around the joint ball 18.

  Here, when the air-conditioning air A (hot air or cold air) directly touches the bearing member 31, the elastic gripping force changes due to the influence of the temperature of the air-conditioning air A, and the bearing member 31 changes. The friction between the joint ball 18 and the joint ball 18 may fluctuate and the operation load may change.

  In this regard, as described above, in the present embodiment in which the guide member 21 having the enlarged diameter portion 22 is placed outside the connecting portion 17, the air-conditioning air A that flows near the central axis C is the enlarged diameter portion 22. , The flow direction can be changed in the direction away from the central axis C toward the downstream side, that is, in the direction away from the bearing member 31. As a result, the air-conditioning air A is unlikely to directly touch the bearing member 31. It is possible to suppress the elastic gripping force of the bearing member 31 from being affected by the temperature of the air conditioning air A.

  As the movable fin 25 rotates, the movable fin 25 is inclined with respect to the central axis C as indicated by a two-dot chain line in FIGS. 8 and 10A. The wall surface of each hexagonal hole 26 is inclined with respect to the central axis C. As shown by the arrows in FIG. 10B, the air-conditioning air A flows along the wall surface of each hexagonal hole 26, thereby moving along the central axis of each hexagonal hole 26, that is, toward the central axis C of the retainer 10. The direction of flow can be changed to the direction of inclination.

When the rotation operation is stopped, the posture (inclination) of the movable fin 25 is held by the elastic gripping force of the bearing member 31.
Moreover, in this embodiment, the flow path is constituted by a large number of hexagonal holes 26, and the opening area of the flow path is made larger than when the flow path is constituted by other holes, for example, round holes. For this reason, there is little ventilation resistance and pressure loss is small.

  Here, since the movable fin 25 has a disk shape as described above and has a small thickness, the movable fin 25 has a conventional movable fin 84 (with a blade 86 disposed inside the cylindrical portion 85 ( It is lighter than the barrel type). Therefore, even if the operation of rotating the movable fin 25 is performed through the operation knob 34 and the weight and the operation load of the movable fin 25 act on the connecting portion 17, the connecting portion 17 is not easily bent, and the movable fin 25 25 is unlikely to excessively approach the spherical surface portion 14 of the retainer 10.

  By the way, when the air-conditioning register is viewed from the downstream side, the downstream end surface of the bezel 45 and the downstream end surface of the fixed fin 40 can be seen as part of the design surface, respectively, and the movable fin can be passed through the flow path of the fixed fin 40. The end face on the downstream side of 25 can be seen as a part of the design surface. Here, the movable fin 25 changes its inclination by turning, whereas the fixed fin 40 does not move. The design of the bezel 45 hardly changes even when the bezel 45 is rotated. Therefore, when the movable fin 25 is rotated, the design of the air-conditioning register does not change much although the inclination of the operation knob 34 changes.

According to the embodiment described in detail above, the following effects can be obtained.
(1) As the movable fin 25, one having a disk shape and having an operation knob 34 is used. A large number of holes (hexagonal holes 26) penetrating the movable fin 25 constitute a flow path of the air-conditioning air A (FIG. 4).

Therefore, the weight of the movable fin 25 can be reduced, and interference with the retainer 10 (spherical surface portion 14) of the movable fin 25 can be suppressed.
(2) A large number of hexagonal holes 26 are provided at regular intervals as flow paths in substantially the entire movable fin 25 (FIG. 3).

Therefore, it is possible to increase the opening area of the flow path, reduce the ventilation resistance, and reduce the pressure loss.
Further, by forming a flow path with a large number of hexagonal holes 26 (FIG. 2B), the thickness of the portion between adjacent hexagonal holes 26 can be made substantially uniform. As a result, many flow paths can be efficiently formed in the movable fin 25 and the air-conditioning air A can be passed through efficiently.

  (3) The socket portion 33 is constituted by the socket body 28 and the bearing member 31 formed of an elastic material and attached to the socket body 28 and having the spherical recess 32. And the socket part 33 is gender-coupled to the joint ball 18 in the spherical recessed part 32 so that rotation is possible (FIG. 4).

Therefore, the operation load can be applied by the frictional force generated between the bearing member 31 and the joint ball 18, and the operation feeling can be improved.
(4) A joint ball 18 is provided at the downstream end of the elongated connecting portion 17 extending along the central axis C of the retainer 10. A socket part 33 is provided at the center of the movable fin 25. Furthermore, a cylindrical guide member 21 having a diameter-enlarged portion 22 whose diameter is increased toward the downstream side is placed on the outside of the connecting portion 17 (FIG. 4).

  Therefore, the flow of the air-conditioning air A can be prevented from being obstructed by the bearing member 31 and the socket body 28. In addition, the elastic gripping force of the bearing member 31 changes due to the influence of the temperature of the air-conditioning air A, and the friction between the bearing member 31 and the joint ball 18 fluctuates to prevent the operation load from changing. can do.

(5) A fixed fin 40 having a flow path for air conditioning air A is fixed downstream of the movable fin 25 (FIG. 1).
Thus, by providing the stationary fin 40 that does not move on the downstream side of the movable fin 25 whose inclination is changed by the rotation, the change in the design when the movable fin 25 is rotated can be reduced.

In addition, the said embodiment can also be implemented as a modification which changed this as follows.
<About movable fin 25>
The flow path of the air-conditioning air A in the movable fin 25 may be configured by a large number of round holes 75 as shown in FIGS.

Even in this case, the same operation and effect as the above embodiment can be obtained.
However, when a flow path is constituted by a large number of round holes 75, the thickness of the portion between adjacent round holes 75 becomes non-uniform. Compared with the case where the hexagonal hole 26 is used to form the flow path, the flow path that can be formed in the movable fin 25 is reduced by the amount of the thick portion.

The hexagonal hole 26 may be changed to a size different from that in the above embodiment.
One index indicating the size of the hexagonal hole 26 in this case is a pitch. The pitch is a distance between a pair of wall surfaces facing each other in each hexagon hole 26. By making this pitch variable, the size of each hexagon hole 26 can be changed. As the pitch increases, the hexagonal hole 26 increases.

Moreover, it replaces with a pitch and the length of the one side in the opening end of each hexagon hole 26 may be made into the said parameter | index. As this length increases, the hexagonal hole 26 increases.
When the flow path of the air-conditioning air A in the movable fin 25 is constituted by a large number of round holes 75, the sizes of the round holes 75 may be the same as each other, as shown in FIG. May be non-identical. In FIG. 11B, the round hole 75 is gradually enlarged as the distance from the center of the movable fin 25 increases.

-The flow path of the air-conditioning air A in the movable fin 25 may be comprised by many holes which make a polygonal cylinder shape other than a hexagon.
-When a flow path is comprised by many hexagonal holes 26, each hexagonal hole 26 may be a thing in which each side in the opening end is not uniform. For example, a hole having a flat hexagonal cylindrical shape (when only one set of opposing sides is longer than the other set of opposing sides) corresponds to this.

<About shut dampers 50 and 55>
When the shut dampers 50 and 55 are tilted to the “closed position”, the downstream ends 50a and 55a approach each other. It is difficult to make the gap between the downstream ends 50a and 55a zero. Therefore, as shown in FIG. 12, plate-like ribs 76 extending in the vertical direction may be provided at locations slightly away from the downstream ends 50a, 55a of the shut dampers 50, 55 in the closed position to the upstream side. . The rib 76 may be newly provided or may be configured by the support leg 16.

  In this way, the air-conditioning air A that flows in the vicinity of the central axis C of the retainer 10 flows along the left and right side surfaces of the rib 76, avoiding the rib 76. The air-conditioning air A that has flowed to the downstream end of the rib 76 hits the shut dampers 50 and 55 in the closed position, and flows along the shut dampers 50 and 55 to the side away from the central axis C. The air between the downstream ends 50a and 55a of the shut dampers 50 and 55 and the air between the rib 76 and the downstream ends 50a and 55a move away from the central axis C along the shut dampers 50 and 55. The air is sucked by the flow of the air-conditioning air A flowing to the side and flows together with the air-conditioning air A to the side away from the central axis C. Therefore, it is suppressed that air leaks out of the gap between the downstream ends 50a and 55a to the downstream side.

<About the joint ball 18 and the socket part 33>
-Contrary to the above-mentioned embodiment, joint ball 18 may be provided in movable fin 25, socket part 33 may be provided in connecting part 17, and both 18 and 33 may be coupled male and female.

<About fixed fin 40>
The number of the blades 43 in the fixed fin 40 may be changed to a number different from the above embodiment (four), for example, three, five, etc.

The blade 43 in the fixed fin 40 may extend from the small diameter portion 42 in a direction along the tangent line of the small diameter portion 42 and be connected to the large diameter portion 41.
-As the fixed fin 40, what has a structure and design surface different from the said embodiment may be used.

A plurality of types of fixed fins 40 may be prepared, and one of them may be appropriately selected and incorporated in the air conditioning register.
In addition, the type of the fixed fin 40 may be replaced at an appropriate timing, and by doing so, the design of the fixed fin 40 and thus the air-conditioning register can be changed.

<Applicable points>
The air conditioning register can also be applied to an air conditioning register that is installed in a different location from the instrument panel in the passenger compartment.

The above air-conditioning register is not limited to automobiles and can be widely applied as long as it can change the direction of air sent from an air conditioner or the like and blown into the room.
<Other matters>
・ Shut dampers 50 and 55, damper drive mechanism 65, etc., members, places, etc. that are not directly related to the features of the present invention may be changed as appropriate, such as by omitting or changing the shape, number, etc. May be.

  DESCRIPTION OF SYMBOLS 10 ... Retainer, 14 ... Spherical surface part, 17 ... Connection part, 18 ... Joint ball, 21 ... Guide member, 22 ... Diameter-expanding part, 25 ... Movable fin, 26 ... Hexagon hole (hole), 28 ... Socket main body, 31 ... Bearing member, 32 ... spherical recess, 33 ... socket part, 34 ... operation knob, 40 ... fixing fin, 75 ... round hole (hole), A ... air for air conditioning, C ... center axis.

Claims (5)

A retainer having a cylindrical shape and a spherical surface formed in part;
A movable fin disposed in the spherical portion and having a flow path for air conditioning air;
A connecting portion provided in a central portion of the retainer;
A joint ball provided on one of the central portion of the movable fin and the connecting portion;
A socket portion provided on the other of the central portion of the movable fin and the connecting portion and coupled to the male and female of the joint ball, and the movable fin is rotated about the joint ball so that the flow path is inclined. An air-conditioning register that can change the flow direction of the air-conditioning air by being changed,
The air-conditioning register according to claim 1, wherein the movable fin has a disk shape and has an operation knob, and the flow path includes a plurality of holes penetrating the movable fin. The air-conditioning register according to claim 1, wherein a large number of hexagonal holes are provided at regular intervals as the flow path in substantially the entire movable fin. The socket portion includes a socket body, and a bearing member that is formed of an elastic material and attached to the socket body, and has a spherical recess,
The air-conditioning register according to claim 1, wherein the socket part is male and female coupled to the joint ball so as to be rotatable in the spherical recess. The connecting portion has a long shape extending along the central axis of the retainer,
The joint ball is provided at a downstream end of the connecting portion;
The socket part is provided at the center of the movable fin,
The air-conditioning register according to claim 3, wherein a cylindrical guide member is placed outside the connecting portion, and the guide member is provided with a diameter-expanding portion that increases in diameter toward the downstream side. The air-conditioning register according to any one of claims 1 to 4, wherein a fixed fin having a flow path for the air-conditioning air that has passed through the hole is fixed downstream of the movable fin.