JP7151612B2 - air conditioning register - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-conditioning register that changes the direction of air-conditioning air sent from an air conditioner and blown into a room.

2. Description of the Related Art An instrument panel of a vehicle incorporates an air-conditioning register for changing the direction of air-conditioning air sent from an air conditioner and blown out from an air outlet into the vehicle interior. This air-conditioning register generally includes a retainer in which a ventilation passage for air-conditioning air is formed, and a fin group consisting of a plurality of fins. The retainer has an outlet at the downstream end in the flow direction of air-conditioning air. A plurality of fins in the fin group are arranged in rows in the air passage. The plurality of fins consist of a pair of end fins located at both ends in the arrangement direction and a plurality of intermediate fins located between the end fins. These end fins and intermediate fins are tiltably supported on the retainer by fin shafts.

Furthermore, in the air-conditioning registers described in Patent Documents 1 and 2, the two-end fins are operated as follows for the purpose of improving the directivity of the air-conditioning air blown out from the outlet.

In the neutral state of the fin group with the intermediate fins parallel to the central axis of the air passage, the end fins are parallel to the central axis. Therefore, at this time, the air-conditioning air flowing on both sides of the ventilation passages in the arrangement direction is blown straight downstream from the air outlets, like the air-conditioning air flowing in the middle portion in the same direction.

Also, in the tilted state of the fin group in which the intermediate fins are tilted with respect to the central axis, the end fins are tilted with respect to the central axis so as to approach each other toward the downstream side in the flow direction. At this time, one end fin is inclined in the same direction as the intermediate fin with respect to the central axis. Therefore, the air-conditioning air flowing along one side of the ventilation passage in the arrangement direction flows along the end fins in the same direction as the other intermediate fins, and then is blown out from the outlets. Also, the other end fin is inclined with respect to the central axis in a direction opposite to the inclination direction of the intermediate fin. Therefore, the air-conditioning air flowing along the other side of the ventilation passage in the arrangement direction hits the adjacent intermediate fins by flowing along the end fins, and the flow direction is changed to the direction along the intermediate fins. . Therefore, the air for air conditioning is blown out from the outlet after flowing in the same direction as the intermediate fins. As described above, the air-conditioning air flowing on both sides of the ventilation passage in the arrangement direction is blown in the same direction as the air-conditioning air flowing in the intermediate portion, so that directivity is improved.

JP-A-58-184439 JP-A-60-226652

However, in the conventional air-conditioning registers described in Patent Documents 1 and 2, a large number of parts are required to operate the fins on both ends as described above, and the structure for the same operation is complicated. There is a problem

The present invention has been made in view of such circumstances, and its object is to reduce the number of parts and reduce the number of parts to improve the directivity of the air-conditioning air blown out from the outlet. Moreover, the object is to provide an air-conditioning register which can be realized with a simple structure.

An air-conditioning register that solves the above problems comprises: a retainer formed with a ventilation passage for air-conditioning air and having an outlet at a downstream end in the flow direction of the air-conditioning air; Each of the fins is tiltably supported by the retainer, and the fins at both ends in the arrangement direction, or the fins at the same ends and the fins adjacent thereto are defined as a pair of end fins, and the plurality of fins between the fins at both ends are defined as intermediate fins. and a connection plate for connecting connection pins provided in all the fins of the fin group at locations radially away from the fin axis, wherein the intermediate fins of the both end fins are connected to the air passage. In a neutral state in which the fins are parallel to the central axis of the fins, they are parallel to the central axis. wherein the connecting pin for each of the end fins consists of an upstream connecting pin positioned upstream of the fin axis in the flow direction and a downstream connecting pin positioned downstream of the fin axis, wherein the connecting An upstream cam groove with which the upstream connecting pin is engaged and a downstream cam groove with which the downstream connecting pin is engaged are formed on both sides of the plate in the arrangement direction. Starting from a point where the upstream connecting pin is engaged in a neutral state, the two downstream cam grooves extend away from each other. extended.

According to the above configuration, in the neutral state of the fin group, the upstream connecting pin is engaged with the starting point of the upstream cam groove, and the downstream connecting pin is engaged with the starting point of the downstream cam groove. Both end fins are parallel to the central axis of the air passage.

When the connecting plate moves from the neutral state of the fin group to one side in the arrangement direction, the movement is transmitted to the intermediate fins via the connecting pins of the intermediate fins. Each intermediate fin is tilted with the fin axis as a fulcrum, and the fin group is in a tilted state in which all the intermediate fins are tilted with respect to the central axis.

Of the upstream cam groove and the downstream cam groove, the cam groove extending from the starting point in the direction opposite to the moving direction of the connecting plate is engaged with the starting point of the cam groove of the upstream connecting pin and the downstream connecting pin. Do not press the connecting pin in the direction of movement. On the other hand, the cam groove extending from the starting point in the same direction as the moving direction of the connecting plate moves the connecting pin of the upstream connecting pin and the downstream connecting pin, which is engaged with the starting point of the cam groove, in the moving direction. press.

The connecting pin pressed by the cam groove turns around the fin axis together with the connecting pin not pressed. The position in the cam groove of the connecting pin that is not pressed by the cam groove changes with the turning.

If the cam groove extending from the starting point in the same direction as the direction of movement of the connecting plate is the upstream cam groove, the end fin with which the upstream connecting pin is engaged with the upstream cam groove is the fin in the flow direction of the air-conditioning air. The portion on the upstream side of the shaft moves in the same direction as the direction of movement, and the portion on the downstream side tilts so as to move in the direction opposite to the direction of movement. On the other hand, when the cam groove extending from the starting point in the same direction as the moving direction of the connecting plate is the downstream cam groove, the end fin that the downstream connecting pin engages with the same downstream cam groove is The portion on the upstream side of the fin shaft moves in a direction opposite to the moving direction, and the portion on the downstream side tilts so as to move in the same direction as the moving direction. In this manner, in the inclined state of the fin group, the end fins are inclined with respect to the central axis so as to approach each other toward the downstream side in the flow direction.

As described above, the movement of the end fins displaces the upstream cam grooves and the downstream cam grooves in accordance with the movement of the connecting plate, thereby changing the engaging position of the upstream connecting pin in the upstream cam grooves, and also displacing the downstream cam grooves. It is realized by a simple structure such as changing the engaging position of the downstream connecting pin in the . Moreover, the connecting plate is originally used as a structural member of an air-conditioning register in order to tilt the plurality of intermediate fins in a synchronized manner. Therefore, it is not necessary to add a new part in order to realize the above operation of the both end fins.

In the air-conditioning register, all the fin shafts in the fin group protrude outside the retainer, an arm extends from a portion of each fin shaft that protrudes outside the retainer, and the intermediate fins are connected to each other. A pin is provided on the arm at a location away from the fin axis, and the arms on the end fins extend in opposite directions from the fin axis to cross the fin axis. It is preferable that the upstream connecting pin and the downstream connecting pin are provided at locations on the arm that sandwich the fin shaft and are separated from each other in opposite directions from the fin shaft.

According to the above configuration, when the connecting plate moves in one direction in the arrangement direction, the movement is transmitted to each intermediate fin via the connecting pin and the arm, and the intermediate fin tilts about the fin shaft as a fulcrum.

Further, the movement of the connecting plate is transmitted to one end fin via the upstream cam groove, the upstream connecting pin and the arm, and is also transmitted to the other end fin via the downstream cam groove, the downstream connecting pin and the arm. be. The end fins are tilted toward the side closer to each other toward the downstream side in the flow direction with the fin shaft as a fulcrum.

Here, in each end fin, the upstream connecting pin and the downstream connecting pin are formed on a common arm. Therefore, the structure for actuating the end fins is simpler than when the upstream and downstream connecting pins are formed on separate arms.

In the above air conditioning register, the fin axis of each end fin is upstream in the flow direction of the fin axis of the intermediate fin, and the fin axis of the same end fin and the downstream end of the same end fin in the flow direction. It is preferable that the intermediate fins are arranged at a location farther from the fin axis of the adjacent intermediate fin than the interval of .

According to the above configuration, when the connecting plate moves from the neutral state of the fin group in one direction in the arrangement direction, the fins at both ends move toward each other downstream in the flow direction with the fin shaft as a fulcrum in conjunction with the movement. Tilt to the approaching side. In the arrangement direction, the end fin adjacent to the front in the direction in which the downstream portion of the intermediate fin tilts relative to the fin axis tilts in the direction opposite to the tilting direction of the intermediate fin. Along with the tilting, the portion downstream of the fin axis of the end fin in the flow direction and the portion downstream of the fin axis of the adjacent intermediate fin in the flow direction approach each other. However, if the fin axis of each end fin is arranged at a location that satisfies the above conditions in relation to the fin axis of the intermediate fin, the downstream portion of each end fin and the downstream portion of the adjacent intermediate fin will be separated. Interference is less likely to occur.

In the above-described air-conditioning register, the retainer has a pair of first opposing wall portions that face each other, and the retainer faces the first opposing wall portions while intersecting with both first opposing wall portions. a pair of second opposing walls connected to the ends of the end fins and all of the intermediate fins arranged along one of the first opposing walls and the second opposing walls; It is preferable that the fin axis of the end fin is provided at the upstream end of the end fin in the flow direction and supported by the boundary portion between the first opposing wall portion and the second opposing wall portion.

According to the above configuration, the end fins positioned at both ends in the arrangement direction are provided at the upstream ends of the same end fins in the flow direction, and are located at the boundary between the first opposing wall portion and the second opposing wall portion. It is tilted with the supported fin shaft as a fulcrum. Therefore, in both the neutral state and the inclined state of the fin group, the gap between the end fin and the one adjacent to the end fin in the arrangement direction of the first opposing wall and the second opposing wall is reduced. However, it is possible to restrict the air for air conditioning from flowing through this gap.

In the above-described air-conditioning register, the retainer has a pair of first opposing wall portions that face each other, and the retainer faces the first opposing wall portions while intersecting with both first opposing wall portions. and a pair of second opposing wall portions connected to the ends of the fin group, wherein the end fins and all of the intermediate fins are upstream of the outlet in the flow direction and both second opposing wall portions a group of downstream fins arranged along the first opposing wall between and both end fins and all of the intermediate fins upstream of the group of downstream fins in the flow direction between both first opposing walls and an upstream fin group arranged along the second opposing wall portion, and the engagement of the upstream connecting pin with the upstream cam groove and the engagement of the downstream connecting pin with the downstream cam groove are performed by the downstream fin. Preferably, at least the upstream fin group out of the group and the upstream fin group.

Here, if the end fins of the downstream fin group are inclined so that the downstream portion in the flow direction is closer to the adjacent second opposing wall portion than the upstream portion, the air conditioning flowing along the end fins The air may hit the second opposing wall portion and be blown out from the outlet after being changed in flow direction. Also, if the end fins of the upstream fin group are inclined so that the downstream portion in the flow direction is closer to the adjacent first opposing wall portion than the upstream portion, the air-conditioning airflow flowing along the end fins will increase. The air hits the first opposing wall portion and is blown out from the outlet after the flow direction is changed.

Such a phenomenon is more likely to occur in the upstream fin group than in the downstream fin group. This is because the upstream fin group is located farther upstream from the outlet than the downstream fin group. The air-conditioning air flowing along the end fins of the downstream fin group may be blown out from the outlet without hitting the second opposing wall. However, it is unlikely that the air-conditioning air that has flowed along the end fins of the upstream fin group will be blown out of the outlet without hitting the first opposing wall.

Therefore, when the engagement of the upstream connecting pin with the upstream cam groove and the engagement of the downstream connecting pin with the downstream cam groove are applied to the upstream fin group, the directionality is improved more than when applied to the downstream fin group. You can get a big effect on the points.

According to the above air-conditioning register, the operation of the end fins for improving the directivity of the air-conditioning air blown out from the outlet can be realized with a small number of parts and with a simple structure.

1 is a front view of an air conditioning register with both the downstream fin group and the upstream fin group neutralized in one embodiment; FIG. FIG. 2 is a side view of the air conditioning register of FIG. 1; FIG. 2 is a cross-sectional view of the air conditioning register taken along line 3-3 of FIG. 1; FIG. 4 is a partially exploded perspective view showing constituent members of an upstream link mechanism in one embodiment; FIG. 2 is a plan view of the air-conditioning register of FIG. 1; FIG. 2 is a cross-sectional view of the air conditioning register taken along line 6-6 of FIG. 1; (a) is a side view explaining the downstream link mechanism in one Embodiment, (b), (c) is a fragmentary side view which expands and shows a part of Fig.7 (a), respectively. 8A is a plan view for explaining an upstream link mechanism in one embodiment, and FIGS. 8B and 8C are partial plan views each showing an enlarged part of FIG. 8A; FIG. In one embodiment, it is a diagram showing the state of the air conditioning register when the operation knob is positioned at the right end of the movable range, (a) is a partial plan view corresponding to FIG. 5, (b) is corresponding to FIG. Partial cross-sectional view. (a) and (b) are partial plan views showing the state of the upstream link mechanism when the operation knob is positioned at the right end of the movable range in one embodiment. (a) and (b) are partial plan views showing the state of the upstream link mechanism when the operation knob is positioned at the left end of the movable range in one embodiment. 4(a) and 4(b) are partial plan views showing the state of the upstream link mechanism when the operation knob is positioned between the central portion and the right end of the movable range in one embodiment. FIG. (a) and (b) are partial plan views showing the state of the upstream link mechanism when the operation knob is positioned in the intermediate portion between the center portion and the left end of the movable range in one embodiment. In one embodiment, it is a diagram showing the state of the air conditioning register when the operation knob is tilted with respect to the central axis of the ventilation passage, (a) is a partial side view corresponding to FIG. 2, (b) is a diagram 3 is a partial side sectional view corresponding to FIG. (a) is a side view showing the state of the downstream link mechanism when the operation knob is tilted with respect to the central axis of the ventilation passage in one embodiment; (b) and (c) are respectively FIG. Partial side view showing an enlarged part of. 16(a) is a plan view showing an upstream link mechanism of a modification, and (b) and (c) are partial plan views showing enlarged portions of FIG. 16(a).

An embodiment embodied in an air conditioning register for a vehicle will be described below with reference to FIGS. 1 to 15. FIG.
In the following description, it is assumed that the traveling direction (advance direction) of the vehicle is the front, the backward direction is the rear, and the height direction is the vertical direction. In addition, the vehicle width direction (horizontal direction) is defined with reference to the case where the vehicle is viewed from the rear.

In the passenger compartment, an instrument panel is provided in front of the front seats (driver's seat and front passenger's seat) of the vehicle, and air-conditioning registers are incorporated in the central portion, side portions, and the like in the left-right direction. The main function of this air-conditioning register is to change the direction of the air-conditioning air sent from the air conditioner and blown out into the passenger compartment.

As shown in FIGS. 1, 3 and 6, the air conditioning register 10 includes a retainer 11, a downstream fin group F1, an upstream fin group F2, an operation knob 31 and a transmission mechanism B1. Next, the configuration of each of these units will be described.

<Retainer 11>
The retainer 11 is a portion that constitutes the outer shell portion of the air conditioning register 10 . The retainer 11 includes a retainer body 12 connected to an air duct (not shown) of an air conditioner, and a bezel 19 .

The retainer body 12 has a tubular shape with both ends opened. The internal space of the retainer body 12 constitutes a ventilation passage 13, which is a passage for the air conditioning air A1. Here, regarding the flow direction of the air-conditioning air A1, the side closer to the air conditioner is called "upstream", "upstream", etc., and the side farther from the air conditioner is called "downstream", "downstream", etc. .

The retainer body 12 includes a plurality of members and is constructed by interconnecting these members. The upstream open end of the retainer body 12 constitutes an inlet 14 for the air-conditioning air A1 sent from the air conditioner through the blower duct.

The retainer body 12 has a pair of first opposing wall portions 15 that face each other in the left-right direction, and a pair of second opposing wall portions 17 that face each other in the vertical direction, which is the direction intersecting the first opposing wall portions 15 . It has The left-right ends of the second opposing walls 17 are connected to the vertical ends of the first opposing walls 15 .

Each second opposing wall portion 17 has a recess 18 at its downstream portion and upstream of the outlet 21 . In both second opposing wall portions 17 , the space in the vertical direction is wider at the location where the recessed portion 18 is provided than at the location adjacent to the upstream side of the recessed portion 18 .

Each first opposing wall portion 15 has a recess 16 on the upstream side of the recess 18 . In both first opposing wall portions 15 , the distance in the left-right direction is wider at the location where the recess 16 is provided than at the location adjacent to the upstream side of the recess 16 .

The bezel 19 is a member forming the downstream end of the retainer 11 . The bezel 19 has an outlet 21 for air conditioning air A1. The outlet 21 has a horizontally long rectangular shape that is elongated in the horizontal direction rather than in the vertical direction. A downstream side surface of the bezel 19 and a portion around the outlet 21 constitutes a design surface of the air-conditioning register 10 .

<Downstream fin group F1>
As shown in FIGS. 3 and 14(b), the downstream fin group F1 is for changing the vertical direction of the air-conditioning air A1 blown out from the outlet 21. As shown in FIG. The downstream fin group F<b>1 is composed of a plurality of fins arranged in the ventilation passage 13 along the first opposing wall portion 15 while being separated from each other in the vertical direction. These fins are composed of a pair of end fins 22 arranged at both ends in the vertical direction and a plurality of intermediate fins 23 arranged between the end fins 22 .

Each of the end fins 22 and each of the intermediate fins 23 has a plate-shaped fin body 24 extending in the left-right direction and the flow direction. The dimensions of the fin bodies 24 of the intermediate fins 23 in the flow direction are set to be substantially the same among the intermediate fins 23 . The fin bodies 24 of all the intermediate fins 23 are arranged at substantially the same position with respect to the flow direction. Further, the fin bodies 24 of the intermediate fins 23 are arranged in a state of being spaced apart from each other substantially parallel to each other at substantially equal intervals in the vertical direction. The fin bodies 24 of the end fins 22 are slightly shorter in the direction of flow than the fin bodies 24 of the intermediate fins 23 in the same direction.

Both the end fins 22 and all the intermediate fins 23 are provided with fin shafts 25 at both left and right end portions of the fin body 24, and these fin shafts 25 are tiltably supported by both first opposing wall portions 15. there is A fin axis 25 of each intermediate fin 23 is positioned downstream of the fin body 24 . The positions of the fin axes 25 of the intermediate fins 23 in the flow direction are substantially the same among the intermediate fins 23 .

Here, the state in which the intermediate fins 23 are parallel to the central axis CL of the ventilation passage 13 is called the neutral state of the downstream fin group F1, and the state in which the intermediate fins 23 are inclined with respect to the central axis CL is the inclined state of the downstream fin group F1. It is assumed that

A fin axis 25 of each end fin 22 is provided at the upstream end of the same end fin 22 . The fin axis 25 of each end fin 22 is located upstream of the fin axis 25 of the intermediate fin 23 and is closer to the adjacent intermediate fin 23 than the distance D1 between the fin axis 25 of the same end fin 22 and the downstream end. 25 is located far away. In the present embodiment, the fin axis 25 of each end fin 22 is arranged at substantially the same position in the flow direction as the upstream end of the fin main body 24 of the intermediate fin 23 when the downstream fin group F1 is in the neutral state. It is The fin shaft 25 of each end fin 22 is located in the concave portion 18 as a whole, and the boundary portion between the first opposing wall portion 15 and the second opposing wall portion 17, that is, each first opposing wall portion 15 is supported at the upper or lower end of the

<Upstream fin group F2>
As shown in FIGS. 6 and 9B, the upstream fin group F2 is for changing the horizontal direction of the air conditioning air A1 blown out from the outlet 21. are also located upstream. The upstream fin group F<b>2 is composed of a plurality of fins arranged in the ventilation passage 13 along the second opposing wall portion 17 while being separated from each other in the left-right direction. These fins are composed of a pair of end fins 26 arranged at both ends in the left-right direction and a plurality of intermediate fins 27 arranged between the end fins 26 .

Each of the end fins 26 and all the intermediate fins 27 has a plate-like fin body 28 extending vertically and in the flow direction. The dimensions of the fin bodies 28 in the intermediate fins 27 in the flow direction are set to be substantially the same among the intermediate fins 27 . The fin bodies 28 of all the intermediate fins 27 are arranged at substantially the same position with respect to the flow direction. Further, the fin bodies 28 of the intermediate fins 27 are arranged in a state in which they are spaced substantially parallel to each other at substantially equal intervals in the left-right direction. The fin body 28 of each end fin 26 has a smaller dimension in the flow direction than the fin body 28 of the intermediate fin 27 in the same direction. In this embodiment, the fin body 28 of each end fin 26 is about half the size of the fin body 28 of the intermediate fin 27 .

Both the end fins 26 and all the intermediate fins 27 are provided with fin shafts 29 at both upper and lower ends of the fin body 28, and these fin shafts 29 are tiltably supported by the two second opposing wall portions 17. there is A fin axis 29 of each intermediate fin 27 is positioned at the central portion of the fin body 28 in the flow direction. The positions of the fin axes 29 of the intermediate fins 27 in the flow direction are substantially the same among the intermediate fins 27 .

Here, the state in which the intermediate fins 27 are parallel to the central axis CL is referred to as the neutral state of the upstream fin group F2, and the state in which the intermediate fins 27 are inclined with respect to the central axis CL is referred to as the inclined state of the upstream fin group F2. do.

A fin axis 29 of each end fin 26 is provided at the upstream end of the same end fin 26 . The fin axis 29 of each end fin 26 is located upstream of the fin axis 29 of the intermediate fin 27 and is closer to the adjacent intermediate fin 27 than the distance D2 between the fin axis 29 of the same end fin 26 and the downstream end. 29 is located far away. In the present embodiment, the fin axis 29 of each end fin 26 is arranged at substantially the same position in the flow direction as the upstream end of the fin main body 28 of the intermediate fin 27 when the upstream fin group F2 is in the neutral state. ing. The fin shaft 29 of each end fin 26 is located in the concave portion 16 as a whole, and the boundary portion of each second opposing wall portion 17 with the first opposing wall portion 15 , that is, each second opposing wall portion 17 . supported at the left or right end of the

<Operation Knob 31>
As shown in FIGS. 3 and 6, the operation knob 31 is a member operated by the passenger when changing the blowing direction of the air conditioning air A1 from the blower outlet 21. As shown in FIG. The operation knob 31 is attached to the fin body 24 of the intermediate fin 23 in the central portion in the vertical direction so as to be slidable in the horizontal direction.

<Transmission Mechanism B1>
The transmission mechanism B1 is a mechanism for transmitting the sliding motion of the operation knob 31 to the intermediate fin 27 in the central portion in the left-right direction, and tilting the intermediate fin 27 with the fin shaft 29 as a fulcrum. A notch portion 33 is formed in the downstream portion of the fin body 28 of the intermediate fin 27 in the central portion, unlike the fin body 28 of the other intermediate fins 27 . Along with the formation of the notch 33 , a vertically extending transmission shaft 34 is formed at the downstream end of the fin body 28 . A bifurcated fork 32 is connected to the operation knob 31 . The forks 32 extend upstream while being separated from each other in the left-right direction, and sandwich the transmission shaft portion 34 from both the left and right sides.

The air conditioning register 10 further includes a downstream link mechanism LM1 and an upstream link mechanism LM2.
As shown in FIGS. 2 and 6, the downstream link mechanism LM1 is a mechanism for tilting the end fins 22 and all the intermediate fins 23 in the downstream fin group F1 in a synchronized manner. In the downstream link mechanism LM1, when the downstream fin group F1 is in a neutral state, the both end fins 22 are parallel to the central axis CL as shown in FIG. Further, in the downstream link mechanism LM1, in the inclined state of the upstream fin group F2, as shown in FIG. It is inclined with respect to the central axis CL so as to move away from the second opposing wall portion 17 .

As shown in FIGS. 3 and 5, the upstream link mechanism LM2 is a mechanism for tilting the end fins 26 and all the intermediate fins 27 in the upstream fin group F2 in a synchronized manner. In the upstream link mechanism LM2, when the upstream fin group F2 is in a neutral state, as shown in FIG. 6, both end fins 26 are parallel to the center axis CL. In the upstream link mechanism LM2, when the upstream fin group F2 is tilted, as shown in FIG. It is inclined with respect to the central axis CL so as to move away from the first opposing wall portion 15 .

The upstream link mechanism LM2 and the downstream link mechanism LM1 have structures similar to each other. Therefore, the upstream link mechanism LM2 will be described in detail here. The description of the items common to the upstream link mechanism LM2 in the downstream link mechanism LM1 will be omitted, and the description will focus on the different items.

Further, by using "number" + "U" as a code for the components of the upstream link mechanism LM2, and using "number" + "D" as a code for the components of the downstream link mechanism LM1, A distinction is made between the components of the upstream link mechanism LM2 and the components of the downstream link mechanism LM1. As for the "number", a value common to the upstream link mechanism LM2 and the downstream link mechanism LM1 is used.

<Upstream link mechanism LM2>
As shown in FIGS. 3, 5 and 9(a), all the upper fin shafts 29 in the upstream fin group F2 project upward from the upper second opposing wall portion 17, and from this projecting portion , arms 41U and 43U are extended.

The arm 41U of each intermediate fin 27 extends from the fin shaft 29 in a direction crossing the fin shaft 29 in the radial direction. In the neutral state of the upstream fin group F2, the arm 41U of each intermediate fin 27 extends upstream in parallel with the fin body 28 (see FIG. 8A). A connecting pin 42U protrudes upward from the end of the arm 41U of each intermediate fin 27 opposite to the fin shaft 29 .

On the other hand, as shown in FIGS. 4, 5 and 9A, the arms 43U of the end fins 26 extend from the fin shaft 29 in the radial direction intersecting the fin shaft 29. , extending in opposite directions. In the neutral state of the upstream fin group F2, the arm 43U of each end fin 26 extends upstream and downstream from the fin shaft 29 in parallel with the fin body . Connecting pins protrude upward from portions of the arm 43U of each end fin 26 that sandwich the fin shaft 29 and are separated from the fin shaft 29 in opposite directions. A pair of connecting pins for each end fin 22 consists of an upstream connecting pin 44U positioned upstream of the fin shaft 29 and a downstream connecting pin 45U positioned downstream.

The upstream link mechanism LM2 includes a connecting plate 46U that connects the connecting pin 42U for each intermediate fin 27 and the upstream connecting pin 44U and downstream connecting pin 45U for each end fin 22. As shown in FIG. The connection plate 46U has a plate shape elongated in the left-right direction, and is arranged near the upper side of the upper second opposing wall portion 17 (see FIG. 3). 47 U of engagement holes are formed in the left-right direction at regular intervals in the intermediate part except right-and-left both sides in the connection plate 46U. The connecting pins 42U of the intermediate fins 27 are engaged with these engaging holes 47U from below. Due to these engagements, the connecting pins 42U of all the intermediate fins 27 are connected to each other via the connecting plates 46U.

An upstream cam groove 48U with which the upstream connecting pin 44U is engaged and a downstream cam groove 51U with which the downstream connecting pin 45U is engaged are formed on the left and right side portions of the connecting plate 46U.

As shown in FIGS. 4 and 8(a) to (c), each downstream cam groove 51U has a curved portion 52U and a bent portion 53U. Both curved portions 52U extend toward each other from a position where the downstream connecting pin 45U is engaged in the neutral state of the upstream fin group F2. Each curved portion 52U is curved so as to swell toward the downstream side. Each bent portion 53U extends upstream from a location where the downstream connecting pin 45U engages in the neutral state of the upstream fin group F2.

Both upstream cam grooves 48U extend away from each other starting from a point where the upstream connecting pin 44U is engaged in the neutral state of the upstream fin group F2. Each upstream cam groove 48U is curved so as to gently swell toward the upstream side. In this embodiment, the upstream cam groove 48U is curved with a smaller curvature than the curved portion 52U of the downstream cam groove 51U, and is substantially straight.

<Downstream link mechanism LM1>
As shown in FIGS. 2 and 7(a) to (c), the downstream link mechanism LM1 includes arms 41D and 43D, a connecting pin 42D, an upstream connecting pin 44D, a downstream connecting pin 45D and a connecting plate 46D. The connection plate 46D has an engagement hole 47D, an upstream cam groove 48D and a downstream cam groove 51D. Each downstream cam groove 51D has a curved portion 52D and a bent portion 53D.

As shown in FIGS. 2, 7(a) to 7(c) and 9(a), all the right fin shafts 25 in the downstream fin group F1 extend to the right of the right first opposing wall portion 15. Arms 41D and 43D extend upstream from this projecting portion. The connecting pin 42D protrudes rightward from the arm 41D. The upstream connecting pin 44D and the downstream connecting pin 45D protrude rightward from the arm 43D.

The connection plate 46D has a plate shape elongated in the vertical direction, and is arranged in the vicinity of the right side of the right first opposing wall portion 15 (see FIG. 9B). The engagement holes 47D are formed at regular intervals in the vertical direction in an intermediate portion of the connecting plate 46D excluding the upper and lower side portions. The connecting pin 42D of each intermediate fin 23 is engaged with these engaging holes 47D from the left.

Combinations of the upstream cam groove 48D and the downstream cam groove 51D are formed on both upper and lower sides of the connecting plate 46D.
Next, the operation of this embodiment configured as described above will be described. In addition, effects caused by the action will also be described.

As described above, the upstream fin group F2 and the downstream fin group F1 have the same configuration. Also, the upstream link mechanism LM2 and the downstream link mechanism LM1 have the same configuration. Therefore, the upstream fin group F2 to which the upstream link mechanism LM2 is applied and the downstream fin group F1 to which the downstream link mechanism LM1 is applied operate similarly.

Therefore, here, the action and effect of the air-conditioning register 10 will be described, focusing on the operation of the upstream fin group F2 by the upstream link mechanism LM2. The operation of the downstream fin group F1 by the downstream link mechanism LM1 will be briefly described.

<Neutral state of upstream fin group F2>
As shown in FIGS. 1, 6, and 8(a) to (c), when the operation knob 31 is positioned at the center of the movable range of the intermediate fins 23 in the horizontal direction, the upstream fin group F2 is in a neutral state. be. A fin body 28 of each intermediate fin 27 is parallel to the central axis CL. The upstream connection pin 44U of each end fin 26 is engaged with the starting point of the upstream cam groove 48U, and the downstream connecting pin 45U is the starting point of the downstream cam groove 51U, more specifically, the boundary portion between the curved portion 52U and the bent portion 53U. is engaged. The fin bodies 28 of the fins 26 on both ends are all parallel to the central axis CL. Therefore, the air-conditioning air A1 flows along the fin bodies 28 of the intermediate fins 27 in the middle part in the left-right direction of the ventilation passage 13, and the air-conditioning air A1 flows along the fin bodies 28 of the end fins 26 in both sides. . The air-conditioning air A1 is blown straight from the outlet 21 toward the downstream side.

<Tilting state of upstream fin group F2>
When the operation knob 31 is moved in one of the left and right directions from the neutral state of the upstream fin group F2, for example, FIGS. , the movement is transmitted to the transmission shaft portion 34 via the fork 32 when it is slid to the right. A rightward force acts on the transmission shaft portion 34 . Therefore, the intermediate fin 27 having the transmission shaft portion 34 is tilted counterclockwise in plan view with its fin shaft 29 as a fulcrum. Along with this tilting, the connecting pin 42U connected to the fin shaft 29 via the arm 41U turns around the fin shaft 29 counterclockwise in plan view. The connecting plate 46U moves to the left along a curved path that gently swells toward the upstream side. The movement of this connecting plate 46U is transmitted to the other intermediate fin 27 via the connecting pin 42U and the arm 41U of the other intermediate fin 27. As shown in FIG. The other intermediate fin 27 is tilted in the same direction as the intermediate fin 27 having the transmission shaft portion 34 with the fin shaft 29 as a fulcrum. In this way, all the intermediate fins 27 are inclined with respect to the central axis CL so that the downstream portion of the fin shaft 29 is located on the right side of the upstream portion (FIGS. 9(b) and 12). See (a), (b)).

As the connecting plate 46U moves leftward, both the upstream cam grooves 48U and the downstream cam grooves 51U also move in the same direction, as shown in FIG. 9(a).
Among the upstream cam grooves 48U and the downstream cam grooves 51U, the cam grooves extending from the starting point in the direction opposite to the movement direction of the connecting plate 46U are the cam grooves of the upstream connecting pin 44U and the downstream connecting pin 45U. Do not press the connecting pin engaged with the starting point in the above direction.

As described above, the connecting plate 46U moves leftward. The cam grooves extending rightward from the starting point are the right upstream cam groove 48U and the left downstream cam groove 51U. The right upstream cam groove 48U does not press the upstream connecting pin 44U of the right end fin 26 leftward. Further, the left downstream cam groove 51U does not press the downstream connecting pin 45U of the left end fin 26 leftward.

On the other hand, among the upstream cam groove 48U and the downstream cam groove 51U, the cam groove extending from the starting point in the same direction as the moving direction of the connecting plate 46U is the same as the upstream connecting pin 44U and the downstream connecting pin 45U. The connecting pin engaged with the starting point of is pressed in the above direction.

The cam grooves extending leftward from the starting point in the same direction as the moving direction of the connecting plate 46U are the right downstream cam groove 51U and the left upstream cam groove 48U. The right downstream cam groove 51U presses the downstream connecting pin 45U of the right end fin 26 leftward. The left upstream cam groove 48U presses the upstream connecting pin 44U of the left end fin 26 leftward.

Since the connecting pin pressed by the cam groove is connected to the fin shaft 29 via the arm 43U, it turns around the fin shaft 29 together with the connecting pin that is not pressed. As shown in FIGS. 12(a) and 12(b) and FIGS. 10(a) and (b), the position of the connecting pin in the cam groove that is not pressed by the cam groove is the end opposite to the starting point. change toward the department.

The upstream cam groove 48U is a cam groove extending from the starting point in the same direction as the moving direction of the connecting plate 46U. The portion on the upstream side of the fin shaft 29 moves in the same direction as the movement direction, and the portion on the downstream side tilts so as to move in the direction opposite to the movement direction. That is, as shown in FIGS. 12A and 10A, the left end fin 26 tilts counterclockwise in plan view. This tilting direction is a direction in which the left end fin 26 approaches the right end fin 26 toward the downstream side. When the angle formed by the left end fin 26 with respect to the central axis CL becomes the maximum possible due to the tilting, as shown in FIG. It is positioned at the starting point of the groove 48U, and the downstream connecting pin 45U is positioned at the end opposite to the starting point of the curved portion 52U.

A cam groove extending from the starting point in the same direction as the moving direction of the connecting plate 46U is the downstream cam groove 51U. The portion on the upstream side of 29 moves in a direction opposite to the direction of movement, and the portion on the downstream side tilts so as to move in the same direction as the direction of movement. That is, as shown in FIGS. 12(b) and 10(b), the right end fin 26 tilts clockwise in plan view. This tilting direction is a direction in which the right end fin 26 approaches the left end fin 26 toward the downstream side. When the angle formed by the right end fin 26 with respect to the central axis CL becomes the maximum possible due to the tilting, as shown in FIG. The downstream connecting pin 45U is positioned at the end of the bent portion 53U farther from the starting point.

As described above, the connecting plate 46U moves leftward along with the rightward sliding operation of the operation knob 31, and the cam groove extending from the starting point in the same direction as the moving direction of the connecting plate 46U becomes the upstream cam groove 48U. and the downstream cam grooves 51U, the end fins 26 with the connecting pins engaged with those cam grooves tilt toward the side closer to each other toward the downstream side.

At this time, as shown in FIG. 9B, the left end fin 26 is inclined in the same direction as the intermediate fin 27 with respect to the central axis CL. Therefore, the air-conditioning air A1 flowing in the left side of the ventilation passage 13 flows along the left end fin 26 and the intermediate fin 27 on the right side thereof, and then is blown out from the outlet 21 .

Also, the right end fin 26 is inclined in a direction opposite to the inclination direction of the intermediate fin 27 with respect to the central axis CL. Therefore, the air-conditioning air A1 flowing in the right side of the ventilation passage 13 flows along the right end fin 26, hits the intermediate fin 27 on the left side, and changes its flow direction to the direction along the intermediate fin 27. be. Therefore, the air-conditioning air A1 flows in the same direction as the intermediate fins 27 and is then blown out from the outlet 21 .

As described above, both the air conditioning air A1 flowing through the left side and the air conditioning air A1 flowing through the right side of the ventilation passage 13 are blown out in the same direction as the air conditioning air A1 flowing through the intermediate section, so the directivity is enhanced. be done.

That is, if the left end fin 26 becomes parallel to the central axis CL in the inclined state of the upstream fin group F2, the air conditioning air A1 flowing along the end fin 26 is discharged from the outlet 21 in the above flow direction. The air is blown straight to the downstream side. Accordingly, the amount of the air-conditioning air A1 blown from the outlet 21 in the same direction as the inclined direction of the intermediate fins 27 is reduced.

However, in this embodiment, as described above, the left end fin 26 is inclined in the same direction as the intermediate fin 27 with respect to the central axis CL. Therefore, compared to the case where the left end fin 26 is parallel to the center axis CL as described above, the amount of the air conditioning air A1 blown out from the outlet 21 in the same direction as the inclined direction of the intermediate fins 27 is reduced. As the number increases, the directivity is enhanced.

Further, if the right end fin 26 tilts in the same direction as the intermediate fin 27 in the inclined state of the upstream fin group F2, the air conditioning air A1 flowing through the right side of the ventilation passage 13 will flow into the right end fin 26. By flowing along, it hits the first opposing wall portion 15 on the right side and is blown downstream from the outlet 21 after the flow direction is changed. Accordingly, the amount of the air-conditioning air A1 blown from the outlet 21 in the same direction as the inclined direction of the intermediate fins 27 is reduced.

In this regard, in the present embodiment, as described above, the right end fin 26 in the tilted state of the upstream fin group F2 tilts in a direction opposite to the tilting direction of the intermediate fins 27 with respect to the central axis CL. Therefore, compared to the case where the right end fin 26 tilts in the same direction as the intermediate fin 27, the amount of the air conditioning air A1 blown out from the outlet 21 in the same direction as the intermediate fin 27 is increased. , the directivity is enhanced.

Even if the air-conditioning air A1 that hits the intermediate fins 27 and changes its flow direction hits the first opposing wall portion 15 and changes its flow direction, the amount of the air will flow in the same direction as the intermediate fins 27 as described above. The amount of air-conditioning air A1 flowing along the tilting right end fin 26 is less than when it hits the first opposing wall portion 15 and changes its flow direction. This is because the intermediate fin 27 on the left side is farther from the first opposing wall portion 15 on the right side than the end fin 26 on the right side. Therefore, in the inclined state of the upstream fin group F2, compared to the case where the right end fin 26 tilts in the same direction as the intermediate fins 27, the air conditioning blows out from the outlet 21 in the same direction as the intermediate fins 27. The amount of air A1 is increased, and the directivity is enhanced.

Note that when the operation knob 31 is slid leftward from the inclined state of the upstream fin group F2, each constituent member of the upstream link mechanism LM2 is slid to the right when the operation knob 31 is slid rightward as described above. works in the opposite direction. As shown in FIGS. 5 and 6, when the operation knob 31 reaches the center of the movable range of the intermediate fins 23 in the horizontal direction, all the intermediate fins 27 and both end fins 26 are parallel to the center axis CL. Then, the upstream fin group F2 returns to the neutral state.

On the other hand, when the operation knob 31 is slid leftward from the neutral state of the upstream fin group F2, the intermediate fin 27 having the transmission shaft portion 34 rotates clockwise in a plan view around its fin shaft 29 as a fulcrum. It tilts and the connection plate 46U moves to the right. As the connecting plate 46U moves, the other intermediate fins 27 are tilted in the same direction as the intermediate fins 27 having the transmission shaft portion 34 with the fin shaft 29 as a fulcrum. In this manner, all the intermediate fins 27 are inclined with respect to the central axis CL such that the downstream side portion of the fin shaft 29 is located on the left side of the upstream side portion.

Each component of the upstream link mechanism LM2 operates in the direction opposite to when the operation knob 31 is slid rightward as described above. As shown in FIGS. 13(a), (b) and FIGS. 11(a), (b), even when the upstream cam groove 48U extends from the starting point in the same direction as the moving direction of the connecting plate 46U, In the case of the downstream cam grooves 51U as well, the two-end fins 26 whose connecting pins are engaged with those cam grooves tilt toward the side closer to each other toward the downstream side.

When the angle formed by the left end fin 26 with respect to the central axis CL becomes the maximum possible due to the tilting, as shown in FIG. The downstream connecting pin 45U is positioned at the end of the bent portion 53U farther from the starting point. Further, when the angle formed by the right end fin 26 with respect to the central axis CL reaches the maximum possible angle, as shown in FIG. , and the downstream connecting pin 45U is located at the end opposite to the starting point of the curved portion 52U.

Therefore, in this case as well, both the air conditioning air A1 flowing through the left side and the air conditioning air A1 flowing through the right side of the ventilation passage 13 are blown out in the same direction as the air conditioning air A1 flowing through the intermediate section, so that directivity is enhanced. .

Note that when the operation knob 31 is slid to the right from the inclined state of the upstream fin group F2, the components of the upstream link mechanism LM2 are slid to the left as described above. works in the opposite direction. As shown in FIG. 6, when the operation knob 31 reaches the center of the movable range of the intermediate fins 23 in the left-right direction, all the intermediate fins 27 and both end fins 26 become parallel to the central axis CL. The upstream fin group F2 returns to the neutral state.

By the way, as described above, the above operation of the both end fins 26 displaces the upstream cam groove 48U and the downstream cam groove 51U as the connecting plate 46U moves, and the engagement position of the upstream connecting pin 44U in the upstream cam groove 48U. is changed, and the engaging position of the downstream connecting pin 45U in the downstream cam groove 51U is changed. Moreover, the connecting plate 46U is originally used as a component of the air-conditioning register 10 in order to tilt all the intermediate fins 27 in synchronization. Therefore, it is not necessary to add a new part in order to realize the above operation of the end fins 26 .

<Neutral state of downstream fin group F1>
As shown in FIGS. 1 and 3, when the operation knob 31 is positioned in the vertical central portion of the outlet 21 so as to be parallel to the central axis CL, the downstream fin group F1 is neutral. state. A fin body 24 of each intermediate fin 23 is parallel to the central axis CL. As shown in FIGS. 7(a) to 7(c), the upstream connecting pin 44D of each end fin 22 is engaged with the starting point of the upstream cam groove 48D, and the downstream connecting pin 45D extends from the starting point of the downstream cam groove 51D. Specifically, it is engaged with the boundary portion between the curved portion 52D and the bent portion 53D. Both end fins 22 are parallel to the central axis CL. Therefore, as shown in FIG. 3, the air conditioning air A1 flows along the intermediate fins 23 in the middle portion in the vertical direction of the ventilation passage 13, and the air conditioning air A1 flows along the end fins 22 on both sides. The air-conditioning air A1 is blown straight from the outlet 21 toward the downstream side.

<Inclination State of Downstream Fin Group F1>
When a force directed in one of the vertical directions, for example upward, is applied to the operation knob 31 from the neutral state of the downstream fin group F1, the force is transmitted to the intermediate fins 23 to which the operation knob 31 is attached. . As shown in FIGS. 14(a), (b) and FIGS. 15(a) to (c), the intermediate fin 23 to which the operation knob 31 is attached becomes higher toward the downstream side with its own fin axis 25 as a fulcrum. It is tilted like With this tilting, the connecting pin 42D connected to the fin shaft 25 via the arm 41D pivots downward around the fin shaft 25. As shown in FIG. The connecting plate 46D moves downward along a curved path that gently swells toward the upstream side. The movement of this connecting plate 46D is transmitted to the other intermediate fin 23 via the connecting pin 42D and the arm 41D in the other intermediate fin 23. The other intermediate fins 23 are tilted in the same direction as the intermediate fins 23 to which the operation knobs 31 are attached, with the fin shafts 25 as fulcrums. In this manner, all the intermediate fins 23 are inclined with respect to the central axis CL so as to become higher toward the downstream side.

As shown in FIGS. 7B and 7C, the upper upstream cam groove 48D does not press the upstream connecting pin 44D of the upper end fin 22 downward. The lower downstream cam groove 51D does not press the downstream connecting pin 45D of the lower end fin 22 downward. On the other hand, the upper downstream cam groove 51D presses the downstream connecting pin 45D of the upper end fin 22 downward. The lower upstream cam groove 48D presses the upstream connecting pin 44D of the lower end fin 22 downward.

As shown in FIGS. 15(b) and 15(c), the lower end fin 22 tilts to become higher toward the downstream side, and the upper end fin 22 tilts to become lower toward the downstream side. In this manner, as the connecting plate 46D moves downward as the operation knob 31 moves upward, the end fins 26 tilt toward each other in the vertical direction toward the downstream side.

At this time, as shown in FIG. 14B, the lower end fins 22 are inclined in the same direction as the intermediate fins 23 with respect to the central axis CL. Therefore, the air-conditioning air A1 flowing in the lower part of the ventilation passage 13 flows obliquely upward along the lower end fins 22 and the intermediate fins 23 adjacent thereabove, and then is blown out from the outlet 21. .

The upper end fins 22 are inclined with respect to the center axis CL in a direction opposite to the inclination direction of the intermediate fins 23 . Therefore, the air-conditioning air A1 flowing in the upper portion of the ventilation passage 13 flows along the upper end fin 22, hits the intermediate fin 23 adjacent to the lower side, and changes its flow direction to the direction along the intermediate fin 23. be. Therefore, the air-conditioning air A<b>1 flows obliquely upward in the same direction as the intermediate fins 23 and then is blown out from the outlet 21 .

As described above, both the air-conditioning air A1 flowing through the lower portion and the air-conditioning air A1 flowing through the upper portion of the ventilation passage 13 are blown out in the same direction as the air-conditioning air A1 flowing through the intermediate portion, so the directivity is improved. Increased.

When a downward force is applied to the operation knob 31 from the inclined state of the upstream fin group F2, each constituent member of the downstream link mechanism LM1 moves upward with respect to the operation knob 31 as described above. It works in the opposite direction when force is applied. When the operation knob 31 is made parallel to the central axis CL, all the intermediate fins 23 and both end fins 22 are parallel to the central axis CL as shown in FIG. returns to neutral.

On the other hand, when a downward force is applied to the operation knob 31 from the neutral state of the downstream fin group F1, the intermediate fins 23 to which the operation knob 31 is attached are lowered toward the downstream side with their own fin shafts 25 as fulcrums. and the connecting plate 46D moves upward. Along with the movement of the connecting plate 46D, the other intermediate fin 23 is tilted in the same direction as the intermediate fin 23 to which the operation knob 31 is attached, with the fin shaft 25 as a fulcrum. In this manner, all the intermediate fins 23 are inclined with respect to the central axis CL so as to become lower toward the downstream side.

Further, each constituent member of the downstream link mechanism LM1 operates in a direction opposite to that in the case where upward force is applied to the operation knob 31 as described above. The end fins 22 tilt toward the side closer to each other toward the downstream side. Therefore, in this case as well, both the air-conditioning air A1 flowing through the upper portion and the air-conditioning air A1 flowing through the lower portion of the ventilation passage 13 are blown out in the same direction as the air-conditioning air A1 flowing through the intermediate portion, so that directivity is enhanced. be done.

Note that when an upward force is applied to the operation knob 31 from the inclined state of the downstream fin group F1, each constituent member of the downstream link mechanism LM1 exerts a downward force on the operation knob 31 as described above. It works in the opposite direction as if it were added. When the operation knob 31 becomes parallel to the central axis CL, all the intermediate fins 23 and both end fins 22 become parallel to the central axis CL, and the downstream fin group F1 is neutralized, as shown in FIG. return to state.

Therefore, the downstream link mechanism LM1 that operates the downstream fin group F1 also has the same effects as the upstream link mechanism LM2 that operates the upstream fin group F2.
According to this embodiment, the following effects are obtained in addition to the above.

In the end fins 22, 26 supported by the fin shafts 25, 29, the upstream connecting pins 44D, 44U are engaged with the upstream cam grooves 48D, 48U, and the downstream connecting pins 45D, 45U are engaged with the downstream cam grooves 51D, 51U. engaged. Thus, in this embodiment, two connecting pins and two cam grooves are provided for each of the end fins 22, 26, and each connecting pin is engaged with the corresponding cam groove. Therefore, compared to the case where one connecting pin and one cam groove are provided for each of the end fins 22 and 26, and the connecting pin is engaged with the cam groove, each of the end fins 22 and 26 with the fin shafts 25 and 29 as fulcrums can be arranged. 26 can be stabilized.

By providing each first opposing wall portion 15 (each second opposing wall portion 17) with a mountain-shaped protrusion that protrudes toward the opposing first opposing wall portion 15 (second opposing wall portion 17) Also, it is possible to improve the directivity of the conditioned air A1 in the tilted state of the fin group, as in the above embodiment. In this case, the upstream portion of each projection is inclined with respect to the central axis CL so that the distance between both projections narrows toward the downstream side. Further, the downstream portion of each projection is inclined with respect to the central axis CL so that the distance between both projections increases toward the downstream side. However, in this modification, when the fin group is in the neutral state, both projections obstruct the flow of the air conditioning air A1, resulting in an increase in pressure loss.

In this regard, according to the present embodiment, when the fin group is in the neutral state, both end fins 22 and 26 are parallel to the central axis CL as shown in FIGS. Therefore, in the neutral state of the fin group, the end fins 22, 26 are unlikely to interfere with the flow of the air conditioning air A1, and an increase in pressure loss due to the end fins 22, 26 can be suppressed.

- As shown in FIGS. 4 and 7(a), in this embodiment, in each of the end fins 22, 26, upstream connecting pins 44D, 44U and downstream connecting pins 45D, 45U are formed on common arms 43D, 43U. ing. Therefore, the structure for actuating the end fins 22, 26 is simpler than when the upstream connecting pins 44D, 44U and the downstream connecting pins 45D, 45U are provided on separate arms.

As shown in FIGS. 9(b) and 14(b), when the connecting plates 46D and 46U move from the neutral state of the fin group to one of the fin arrangement directions, the two end fins 22 move in conjunction with the movement. , 26 tilt toward the side closer to each other toward the downstream side with the fin shafts 25 and 29 as fulcrums. Of the arrangement directions, the end fins 22, 26 adjacent to the front of the direction in which the downstream portions of the intermediate fins 23, 27 from the fin shafts 25, 29 tilt are opposite to the tilting direction of the intermediate fins 23, 27. tilt in the direction Along with this tilting, the portions downstream of the fin shafts 25 and 29 of the end fins 22 and 26 and the portions of the adjacent intermediate fins 23 and 27 downstream of the fin shafts 25 and 29 approach each other.

In this regard, in this embodiment, the fin axes 25 and 29 of the end fins 22 and 26 are upstream of the fin axes 25 and 29 of the intermediate fins 23 and 27, and the fin axes 25 and 29 of the same end fins 22 and 26 , 29 and the downstream end from the fin shafts 25, 29 of the adjacent intermediate fins 23, 27 than the distances D1, D2. Therefore, it is possible to suppress interference between the downstream portions of the end fins 22 and 26 and the downstream portions of the adjacent intermediate fins 23 and 27 .

- In the present embodiment, the end fins 22, 26 are provided at the upstream ends of the end fins 22, 26, and the fin shaft is supported at the boundary between the first opposing wall portion 15 and the second opposing wall portion 17. It is tilted with 25 and 29 as fulcrums. Therefore, whether the fin group is in a neutral state (see FIGS. 3 and 6) or in an inclined state (see FIGS. 9B and 14B), the fin shaft 25 and the second opposing wall portion 17 and the gap between the fin shafts 29 and the first opposing wall portion 15 are both made small, and the flow of the air-conditioning air A1 through these gaps can be suppressed.

- As shown in FIG. 6, the air-conditioning air A1 flows along both the first opposing walls 15 in the left and right sides of the ventilation passage 13 . Further, as shown in FIG. 3 , the air-conditioning air A1 flows along both the second opposing walls 17 on both upper and lower sides of the ventilation passage 13 .

Here, in the present embodiment, the recesses 16 are formed in the respective first opposing wall portions 15, and the entire fin shafts 29 of the end fins 26 are arranged here. A recess 18 is formed in each of the second opposing wall portions 17, and the entire fin shaft 25 of the end fin 22 is placed therein.

Therefore, the air-conditioning air A1 flowing through the left and right sides of the ventilation passage 13 is less likely to enter between the fin shafts 29 of the end fins 26 and the first opposing wall portion 15 . Also, the air conditioning air A1 flowing through the upper and lower sides of the ventilation passage 13 is less likely to enter between the fin shafts 25 of the end fins 22 and the second opposing wall portion 17 .

Furthermore, in the neutral state of the upstream fin group F2, each end fin 26 is parallel to the central axis CL within the recess 16. As shown in FIG. Each end fin 26 is located entirely in the recess 16 . Therefore, the end fins 26 are less likely to interfere with the air conditioning air A1 flowing through the left and right sides of the ventilation passage 13, and the pressure loss can be reduced accordingly.

Also, in the neutral state of the downstream fin group F1, each end fin 22 is in a state parallel to the center axis CL within the recess 18 . The entirety of each end fin 22 is located in the recess 18 . Therefore, the end fins 22 are less likely to interfere with the air conditioning air A1 flowing in the upper and lower sides of the ventilation passage 13, and the pressure loss can be reduced accordingly.

・As shown in FIGS. 7(a) to (c) and FIGS. 8(a) to (c), the curved portions 52D and 52U of the downstream cam grooves 51D and 51U are curved so as to swell downstream, and each upstream The cam grooves 48D, 48U are curved so as to bulge upstream with a radius of curvature smaller than that of the curved portions 52D, 52U. Therefore, when the connecting plates 46D and 46U move and the downstream cam grooves 51D and 51U and the upstream cam grooves 48D and 48U move, the engagement positions of the downstream connecting pins 45D and 45U in the downstream cam grooves 51D and 51U are smoothly moved. can be changed to Moreover, the engaging positions of the upstream connecting pins 44D and 44U in the upstream cam grooves 48D and 48U can be smoothly changed.

It should be noted that the above-described embodiment can also be implemented as a modified example in which this is changed as follows. The above embodiments and the following modifications can be combined with each other within a technically consistent range.

In the case of the air-conditioning register 10 in which the fin group is composed of the downstream fin group F1 and the upstream fin group F2 as in the above embodiment, the upstream connecting pins 44D and 44U are engaged with the upstream cam grooves 48D and 48U, and The downstream connecting pins 45D, 45U may be engaged with the downstream cam grooves 51D, 51U only in the upstream fin group F2.

This is for the following reasons. If the end fin 22 is tilted so that the downstream portion is closer to the adjacent second opposing wall portion 17 than the upstream portion in the tilted state of the downstream fin group F1, along the end fin 22 The flowing air-conditioning air A1 may collide with the second opposing wall portion 17 and may be blown out from the outlet 21 after the flow direction is changed. Further, if the end fin 26 is tilted so that the downstream portion is closer to the adjacent first opposing wall portion 15 than the upstream portion in the tilted state of the upstream fin group F2, the end fin 26 The air-conditioning air A1 flowing along hits the first opposing wall portion 15 and is blown out from the outlet 21 after the flow direction is changed.

Such a phenomenon is more likely to occur in the upstream fin group F2 than in the downstream fin group F1. This is because the upstream fin group F2 is provided at a location farther upstream from the outlet 21 than the downstream fin group F1. The air-conditioning air A1 flowing along the end fins 22 of the downstream fin group F1 may be blown out from the outlet 21 without hitting the second opposing wall portion 17 . However, it is unlikely that the air-conditioning air A1 that has flowed along the end fins 26 of the upstream fin group F2 will be blown out from the outlet 21 without hitting the first opposing wall portion 15 .

Therefore, in the upstream fin group F2, when the engagement of the upstream connecting pin 44U with the upstream cam groove 48U and the engagement of the downstream connecting pin 45U with the downstream cam groove 51U are applied to the downstream fin group F1, A large effect can be obtained in terms of improving the directivity.

- As shown in FIG. 16(a), the arms 41U of the intermediate fins 27 may extend downstream from the fin shafts 29 and be provided with connecting pins 42U at their downstream ends, contrary to the above embodiment. In this case, the connecting plate 46U moves along a gently curving path that expands downstream. Therefore, the respective shapes of both downstream cam grooves 51U and both upstream cam grooves 48U in the connecting plate 46U may be changed to differ from those in the above embodiment.

For example, as shown in FIGS. 16B and 16C, each upstream cam groove 48U has a curved portion 49U that curves so as to swell toward the upstream side, and a curved portion 49U that is upstream of the upstream fin group F2 in a neutral state at the curved portion 49U. A bent portion 50U extending downstream from a starting point where the connecting pin 44U engages may be provided.

Further, each downstream cam groove 51U may be curved so as to expand downstream. For example, as shown in FIGS. 16(b) and 16(c), the downstream cam groove 51U may be curved with a smaller curvature than the curved portion 49U of the upstream cam groove 48U to form a substantially straight line.

Even if the respective shapes of the upstream cam groove 48U and the downstream cam groove 51U are changed in this manner, the same actions and effects as in the above embodiment can be obtained.
Although not shown, in the downstream link mechanism LM1, similarly to the above, the arm 41D of the intermediate fin 23 extends downstream from the fin shaft 25, opposite to the above embodiment, and has a connecting pin 42D at its downstream end. may be provided. Also in this case, the upstream cam groove 48D and the downstream cam groove 51D may be modified in the same manner as the upstream link mechanism LM2 described with reference to FIG.

- The operation knob 31 may be provided at a location different from the above-described embodiment in which the operation knob 31 is provided on the intermediate fin 23 in the downstream fin group F1, for example, at a location apart from the outlet 21 on the bezel 19 . In this case, a mechanism that transmits the movement of the operation knob 31 to the intermediate fin 23 in the downstream fin group F1 to tilt it, or a mechanism that transmits the movement of the operation knob 31 to the intermediate fin 27 in the upstream fin group F2 to tilt it. A separate mechanism (not shown) is required.

- In the above embodiment, the fins on both ends in the fin arrangement direction are the end fins, but the fins and the adjacent fins may be the end fins.
- The 1st opposing wall part 15 and the 2nd opposing wall part 17 may orthogonally cross, and may cross|intersect somewhat diagonally.

- The air-conditioning register may be provided at a location different from the instrument panel in the passenger compartment.
The above-mentioned air-conditioning register can be widely applied not only to vehicles, as long as the direction of the air-conditioning air sent from the air conditioner and blown out into the room can be adjusted by the fins.

The fin bodies 24 in the downstream fin group F1 may extend in the vertical direction and the flow direction, and the fin bodies 28 in the upstream fin group F2 may extend in the horizontal direction and the flow direction.

In this case, a pair of vertically opposed walls of the retainer body 12 are defined as first opposed walls 15 , and a pair of horizontally opposed walls are defined as second opposed walls 17 .
A plurality of fin bodies 24 in the downstream fin group F<b>1 are arranged along the first opposing wall portion 15 between the two second opposing wall portions 17 . A plurality of fin bodies 28 in the upstream fin group F<b>2 are arranged along the second opposing wall portion 17 between the two first opposing wall portions 15 .

DESCRIPTION OF SYMBOLS 10... Air-conditioning register, 11... Retainer, 13... Ventilation path, 15... First opposing wall part, 17... Second opposing wall part, 21... Air outlet, 22, 26... End fins, 23, 27... Intermediate fins, 25, 29... Fin shaft, 41D, 41U, 43D, 43U... Arm, 42D, 42U... Connecting pin, 44D, 44U... Upstream connecting pin, 45D, 45U... Downstream connecting pin, 46D, 46U... Connecting plate, 48D, 48U .

Claims (5)

A retainer having a ventilation passage for air-conditioning air and having an outlet at a downstream end in the direction of flow of the air-conditioning air; A fin group consisting of a plurality of fins, having fins at both ends in the arrangement direction, or fins at both ends and adjacent fins as a pair of end fins, and having a plurality of fins between the fins at both ends as intermediate fins, and all of the fin groups a connecting plate for connecting a connecting pin provided at a location radially away from the fin axis in the fin of
Both end fins are parallel to the central axis in a neutral state in which the intermediate fins are parallel to the central axis of the ventilation passage, and in an inclined state in which the intermediate fins are inclined to the central axis, in the flow direction An air conditioning register that is inclined with respect to the central axis so as to approach each other toward the downstream side,
The connecting pin for each of the end fins comprises an upstream connecting pin positioned upstream of the fin axis in the flow direction and a downstream connecting pin positioned downstream,
An upstream cam groove with which the upstream connecting pin is engaged and a downstream cam groove with which the downstream connecting pin is engaged are formed on both sides of the connecting plate in the arrangement direction,
Both upstream cam grooves extend away from each other from a point at which the upstream connecting pin is engaged in the neutral state, and both downstream cam grooves extend from the point at which the downstream connecting pin is engaged in the neutral state. Air-conditioning registers extending toward each other as a starting point. all the fin shafts in the fin group protrude outside the retainer;
An arm extends from a portion of each fin shaft protruding outside the retainer,
the connecting pin in the intermediate fin is provided at a location away from the fin axis on the arm;
The arms of the end fins extend from the fin axis in directions opposite to each other in directions intersecting the fin axis, and the upstream connection pin and the downstream connection pin are connected to the fins in the arms. 2. An air-conditioning register according to claim 1, wherein said fins sandwich the shaft and are provided at locations separated from each other in opposite directions from said fin shaft. The fin axis of each end fin is upstream of the fin axis of the intermediate fin in the flow direction and adjacent to the distance between the fin axis of the same end fin and the downstream end of the same end fin in the flow direction. 3. The air-conditioning register according to claim 1, wherein said intermediate fins are arranged far from the fin axis of said intermediate fins. The retainer has a pair of first opposing wall portions that face each other and faces each other while intersecting with both of the first opposing wall portions. and a pair of second opposing walls,
both end fins and all of the intermediate fins are arranged along one of the first opposing wall and the second opposing wall;
4. The fin shaft of the end fin is provided at an upstream end of the end fin in the flow direction and supported by a boundary portion between the first opposing wall portion and the second opposing wall portion. Air conditioning register as described. The retainer has a pair of first opposing wall portions that face each other and faces each other while intersecting with both of the first opposing wall portions. and a pair of second opposing walls,
The fin group includes a downstream fin group in which both end fins and all of the intermediate fins are arranged along the first opposing wall between both second opposing walls upstream of the outlet in the flow direction. and an upstream fin group in which both end fins and all of the intermediate fins are arranged upstream of the downstream fin group in the flow direction and along the second opposing wall between the first opposing walls. ,
The engagement of the upstream connecting pin with the upstream cam groove and the engagement of the downstream connecting pin with the downstream cam groove are performed in at least the upstream fin group out of the downstream fin group and the upstream fin group. 5. The air conditioning register according to any one of items 1 to 4.

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