JP2024010586A - register - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resister that can improve directivity of blowing while reducing an outer profile in the short direction.

SOLUTION: In a resister 1, a front movable louver 3 having a front fin and a rear movable louver 4 having a rear fin are disposed in a ventilation flue 21 such that the louvers are oriented in an orthogonal direction to each other lengthwise. The front movable louver 3 is provided with a central front fin 30 journaled so as to be tiltable in the short direction, and auxiliary front fins 31, 32 tiltably journaled at an interval on opposite sides of the central front fin. Partially cylindrical concave curved surfaces 31c, 32c are provided in an upstream side end along the longitudinal direction of the auxiliary front fins 31, 32. The concave curved surfaces 31c, 32c are formed to be inclined in an obliquely upstream inner direction relative to the short direction axis orthogonal to the longer direction axis of the auxiliary front fins 31, 32, and configured such that an air flow from the upstream side in the ventilation flue 21 strikes against the concave curved surfaces 31c, 32c to be collected to the central front fin 30 side.

SELECTED DRAWING: Figure 8

COPYRIGHT: (C)2024,JPO&INPIT

Description

The technical field of the resistor described in this specification is a resistor used in an air outlet for ventilation or air conditioning in an automobile interior, etc., in which a front movable louver and a rear movable louver are placed back and forth and mutually in the ventilation path of a retainer. Concerning registers arranged in orthogonal directions.

As a register for adjusting air blowing in the vehicle interior, a front movable louver and a rear movable louver are arranged in a retainer that forms a ventilation path, one after the other and perpendicular to each other. A cross-fin type register is widely used, which adjusts the air blowing direction vertically and horizontally by changing the angle of the front fin of the movable louver and the rear fin of the rear movable louver.

As this type of register, Patent Document 1 below describes a register having an elongated air outlet that is long in the longitudinal direction and short in the transverse direction.

Japanese Patent Application Publication No. 2009-160981

However, although the register described in Patent Document 1 can shorten the widthwise opening of the air outlet, the number of fins along the lengthwise direction is as small as 1 or 2, and the direction of the fins is limited. Even if the direction of the air is changed vertically or horizontally along the width direction of the air outlet, it is difficult to sufficiently change the direction of the air in that direction, and there is a problem that the directivity of the air is not good.

The problem to be solved by the technology of this specification was made in view of the above points, and is to provide a resistor that can improve the directivity of air blowing while reducing the outer shape in the transverse direction. With the goal.

In the register according to the embodiment of the present specification, a substantially rectangular air outlet is provided at the downstream end of the ventilation passage, and a front movable louver with a front fin and a rear movable louver with a rear fin are provided in the ventilation passage. A register in which louvers are arranged in front and back facing each other in mutually orthogonal directions, and the front movable louver is arranged immediately inside the air outlet,
The front movable louver includes a central front fin pivotally supported to be tiltable in the lateral direction of the air outlet, and auxiliary front fins pivotally supported to be tiltable at intervals on both sides of the central front fin in the lateral direction. A fin is provided,
A partially cylindrical concave curved surface is provided at the upstream end of the auxiliary front fin along the longitudinal direction, and the concave curved surface is inclined at an angle with respect to the lateral axis perpendicular to the longitudinal axis of the auxiliary front fin. It is formed with an inclination toward the upstream side,
It is characterized in that the airflow flowing through the ventilation passage from the upstream side hits the concave curved surface and is collected on the center front fin side.

Here, regarding the front and back of the register, the downstream side through which the conditioned air flows into the vehicle interior is the front, and the upstream side where the conditioned air is introduced is the rear. Further, the longitudinal axis is a directional axis along the longitudinal direction of the front fin, and the lateral axis is a directional axis along the lateral direction of the front fin. According to the register according to the embodiment of the present specification, the front movable louver is pivotably supported to be tiltable at intervals on both sides of the center front fin which is pivotably supported to be tiltable in the lateral direction. It consists of an auxiliary front fin. Since the front movable louver is composed of the central front fin and the auxiliary front fins on both sides thereof, it is possible to improve the directivity of air blowing while reducing the outer shape of the register in the lateral direction. Moreover, the wind flowing from upstream of the auxiliary front fin hits the concave curved surface of the upstream end formed on the auxiliary front fin and flows as if pressed against the surface of the central front fin, further improving the directivity of the air blowing. be able to.

Here, in the register, a connecting shaft is provided at each longitudinal end of the central front fin of the front movable louver and the auxiliary front fins on both sides, and a link bar is connected to the connecting shaft. The connecting shaft of the auxiliary front fin is connected through a long hole,
When the central front fin is tilted in the lateral direction, the auxiliary front fin on the side in the tilting direction tilts in substantially the same direction as the central front fin, and the auxiliary front fin on the opposite side in the tilting direction tilts due to the connecting operation of the link bar. The front fin may be configured to maintain a substantially neutral state.

According to this, the auxiliary front fin on the side opposite to the tilting direction maintains a substantially neutral state (horizontal state), and the auxiliary front fin on the side opposite to the tilting direction does not tend toward the outside of the ventilation path, so the register is short. The external shape in the hand direction can be reduced.

Further, in the register, a shaft support for pivotally supporting the rear fin of the rear movable louver is provided on both side walls in the lateral direction immediately upstream of the front movable louver, protruding inwardly, and downstream of the shaft support. An accommodation recess that substantially completely accommodates the auxiliary front fin in a neutral state is provided inside the air outlet on the side, and the upstream end of the auxiliary front fin extends from the accommodation recess toward the center of the ventilation path. The device may be configured to tilt only in the opposite direction.

Further, an inner position of the auxiliary front fin in the housing recess, a widthwise end position of the air outlet, and an inner end position of the rear movable louver are set to substantially the same horizontal position. can be taken as a thing.

According to this, air resistance during air blowing can be suppressed, the length of the ventilation path in the short direction can be suppressed, and the external length of the register in the short direction can be reduced.

According to the register of the present specification, it is possible to reduce the outer shape in the lateral direction while improving the directivity of air blowing.

It is a front view of the register of an embodiment. It is an exploded perspective view of the same register. 2 is a sectional view taken along line III-III in FIG. 1. FIG. 2 is a sectional view taken along the line IV-IV in FIG. 1. FIG. They are a perspective view (A) of the front movable louver of the same register as viewed from the upper right front, and a perspective view (B) as viewed from the upper right rear thereof. They are a plan view (A), a front view (B), a front perspective view (C), a rear perspective view (D), and a left side view (E) of the auxiliary front fin on the upper side of the register. They are a plan view (A), a front view (B), a front perspective view (C), a rear perspective view (D), and a left side view (E) of the auxiliary front fin on the lower side of the register. FIG. 2 is a cross-sectional view taken along the line VIII-VIII in FIG. 1 showing the state of the front movable louver and the air flow; (A) is a cross-sectional view in a neutral state, and (B) is a cross-sectional view with the front movable louver swung upward. , (C) is a sectional view with the front movable louver swung downward. FIG. 2 is a cross-sectional view taken along the line IX-IX in FIG. 1 showing the state of the front movable louver and the link bar, (A) is a cross-sectional view in a neutral state, (B) is a cross-sectional view with the front movable louver swung upward, ( C) is a sectional view with the front movable louver swung downward. FIG. 2 is a cross-sectional view taken along the line X-X in FIG. 1 showing the state of the rear movable louver, where (A) is a cross-sectional view in a neutral state, (B) is a cross-sectional view with the rear movable louver swung to the left, and (C) is a cross-sectional view in a state where the rear movable louver is swung to the left. It is a sectional view of a state where the rear movable louver is rotated to the right and shut. FIG. 4 is an enlarged view of FIG. 3 and shows the inclination angle α of the concave curved surface with respect to the lateral axis. It is an explanatory view showing the air blowing state when the directionality of air blowing of a conventional register is simulated. It is an explanatory view showing the air blowing state when the directivity of the air blowing of the register of the embodiment is simulated.

Hereinafter, registers according to embodiments of this specification will be explained based on FIGS. 1 to 11. Note that the scope of the present invention is not limited to the scope disclosed in the embodiments. As shown in FIGS. 1 and 3, the register 1 according to the embodiment is configured to adjust the wind direction, etc. within the retainer 2 on the rear side of the bezel 5, which is provided with an air outlet 51 as an outlet for the adjusted air. A vertically movable front movable louver 3 and a horizontally movable rear movable louver 4 are respectively disposed for the purpose of the present invention, and each has a rectangular and elongated air outlet 51 that is long in the left-right direction (longitudinal direction) and short in the vertical direction (width direction). This is register 1. An operation knob 34 for rotating the front movable louver 3 and the rear movable louver 4 to adjust the air blowing direction is provided on the center front fin 30 at the vertical center of the front movable louver 3.

In this specification, as shown in FIGS. 1 and 3, the register 1 is oriented with the side of the bezel 5 having the air outlet 51 as the front, and the side of the air intake port 22 of the ventilation passage 21 in the retainer 2 as the front. after. Up, down, left, and right are the top, bottom, left, and right when the register is viewed from the front side, and are used in the illustrations. F indicates front, B indicates rear, U indicates top, D indicates bottom, L indicates left, and R indicates right. Also, based on the adjusted airflow, the front is sometimes referred to as the downstream side, and the rear is sometimes referred to as the upstream side. Furthermore, it may be expressed as inside or outside with respect to the center of the retainer 2.

As shown in FIGS. 2 to 4, the retainer 2 serving as the register casing is a substantially rectangular cylindrical casing with a ventilation passage 21 provided inside, and a louver accommodating portion 23 provided on the front side. A front movable louver 3 that adjusts the wind direction up and down is disposed on the downstream side of the housing section 23, and a rear movable louver 4 that adjusts the wind direction left and right is disposed on the upstream side in a direction perpendicular to the front movable louver 3. will be established.

The front movable louver 3 is composed of three fins in the left and right direction (horizontal direction), and is disposed immediately inside the air outlet 51, and has a central front louver that is pivotally supported so as to be tiltable in the vertical direction (lateral direction). A fin 30 and auxiliary front fins 31 and 32 are provided on both sides of the upper and lower sides of the central front fin 30, spaced apart from each other and pivotally supported so as to be tiltable in the vertical direction.

As shown in FIGS. 6 and 7, partially cylindrical concave curved surfaces 31c and 32c are provided at the upstream end portions of the auxiliary front fins 31 and 32. As shown in FIGS. As shown in FIG. 11, the partially cylindrical concave curved surfaces 31c and 32c are inclined inward so as to face the central front fin 30 at an inclination angle α, and extend along the longitudinal direction of the auxiliary front fins 31 and 32. They are formed to have substantially the same cross-sectional shape along the direction. The concave curved surfaces 31c and 32c of this embodiment are, as shown in FIG. 32c, but the concave curved surfaces 31c and 32c may also be formed to form a part of an ellipse or a part of a hyperbola.

An operating knob 34 is fitted onto the central front fin 30 so as to be slidable left and right, and the operator places his or her finger on the operating knob 34 to tilt the front movable louver 3 up and down and slide it left and right. The rear movable louver 4 is tilted left and right.

Fin support shafts 30a, 31a, and 32a are protruded from approximately the front ends of the center front fin 30 and the auxiliary front fins 31 and 32 on both left and right sides, respectively, and bearing plates 37 (FIG. 2) are provided on the left and right sides of the retainer 2. On the other hand, the central front fin 30 and the auxiliary front fins 31 and 32 are rotatably held via fin support shafts 30a, 31a, and 32a. Connecting shafts 30b, 31b, 32b are protruded from the right sides of the central front fin 30 and the auxiliary front fins 31, 32, respectively, and one link bar 36 is connected to each connecting shaft 30b, 31b, 32b. Ru.

As shown in FIGS. 4 and 5, the link bar 36 is provided with vertically long long holes 36b and 36c above and below the central connecting hole 36a. The connecting shaft 30b of the central front fin 30 fits into the connecting hole 36a.

The long holes 36b and 36c are formed long along the longitudinal direction of the link bar 36. The connecting shaft 31b of the upper auxiliary front fin 31 is fitted into the elongated hole 36b, and when the center front fin 30 faces the horizontal neutral direction, the auxiliary front fin 31 also faces the same horizontal direction, and the center front fin 30 tilts upward. At this time, the auxiliary front fin 31 also tilts in the same upward direction as shown in FIG. 9B. When the central front fin 30 tilts downward, the auxiliary front fin 31 is fitted so that the connecting shaft 31b is located at the lower part of the elongated hole 36b so as to maintain the horizontal neutral direction, as shown in FIG. 9C. Ru. As a result, when the front movable louver 3 is tilted downward, the upper auxiliary front fin 31 maintains a substantially neutral state (substantially horizontal direction) as shown in FIG. 9C, and the front movable louver 3 is tilted upward. As shown in FIG. 9B, the lower auxiliary front fin 32 maintains a neutral state, and the upper auxiliary front fin 31 tilts upward together with the center front fin 30.

On the other hand, the connecting shaft 32b of the lower auxiliary front fin 32 is fitted into the lower elongated hole 36c of the link bar 36, so that when the center front fin 30 faces in the horizontal neutral direction, the auxiliary front fin 32 also moves in the same horizontal direction. When the central front fin 30 tilts downward, the auxiliary front fin 32 also tilts downward in the same direction, as shown in FIG. 9C. When the central front fin 30 tilts upward, the auxiliary front fin 32 is fitted so that the connecting shaft 32b is positioned above the elongated hole 36c so as to maintain the horizontal neutral direction, as shown in FIG. 9B. . As a result, when the front movable louver 3 is tilted upward, the lower auxiliary front fin 32 maintains a substantially neutral state (substantially horizontal direction) and tilts downward, as shown in FIG. 9B. When this happens, it follows and tilts downward as shown in FIG. 9C.

With the above configuration, when the front movable louver 3 is swung upwards, the lower auxiliary front fin 32 maintains the neutral state as shown in FIG. 9B, and when the front movable louver 3 is swung downwards, as shown in FIG. 9C. As such, the upper auxiliary front fin 31 maintains the neutral state. In other words, the auxiliary front fins 31 and 32, which are provided with the fin support shafts 31a and 32a serving as rotational axes at their substantially front ends, tilt toward the inside of the ventilation passage 21 when the front movable louver 3 is tilted up and down. It does not tilt outward in the vertical direction. Therefore, the resistor 1 can minimize the upper and lower protrusions of the retainer 2 and reduce the external shape in the vertical direction (lateral direction). Note that link bar escape recesses 23a (FIG. 9) are provided at the top and bottom of the front right side of the retainer 2 where the link bars 36 are arranged, which are recessed so that the link bars 36 that move up and down do not hit. The upper and lower protrusions are minimized.

On the other hand, when the front movable louver 3 is swung up and down, the upper auxiliary front fin 31 or the lower auxiliary front fin 32 maintains a neutral state, which tends to deteriorate the directivity of air blowing. For this reason, as shown in FIG. 11, partially cylindrical concave curved surfaces 31c and 32c are provided at the upstream ends of the auxiliary front fins 31 and 32 along the longitudinal direction (left-right direction).

The concave curved surfaces 31c and 32c have a cross-sectional shape having a curvature of a circular arc with a radius R, and have a transversal axis A1 perpendicular to the longitudinal axis B1 of the auxiliary front fins 31 and 32 (FIGS. 6 and 7). ), as shown in FIG. 11, it is formed obliquely in the upstream inward direction at an inclination angle α (45°). As a result, the areas of the concave curved surfaces 31c and 32c are made sufficiently large compared to the thickness of the fins, and as shown in FIG. The air can flow against the concave curved surfaces 31c and 32c at the upstream end of the fins 32 and pressed against the surface of the central front fin 30, thereby improving the directivity of the air.

As shown in FIG. 3, a shaft support 47b for pivotally supporting the rear fin 40 of the rear movable louver 4 is provided on the upper wall and lower wall on the upstream side of the front movable louver 3 in the retainer 2 and protrudes inward. has been done. Accommodating recesses 24 that substantially completely accommodate the auxiliary front fins 31 and 32 in the neutral state are provided at the upper and lower parts of the downstream side of the shaft support 47b and immediately inside the air outlet 51, respectively.

As shown in FIG. 3, in the ventilation path 21 of the register, the inner position of the shaft support 47b of the rear fin 40, the inner position of the auxiliary front fins 31 and 32, and the inner position of the air outlet 51 in the lateral direction are as follows. They are configured to have approximately the same horizontal position. In other words, the height of the ventilation passage 21 is the height H1 of the air outlet 51 in the width direction, the height H1 between the upper and lower auxiliary front fins 31 and 32, and the height between the shaft supports 47b of the rear fins 40. It is formed at approximately the same height as H1. Further, the heights H2 and H3 of the accommodation recess 24 are suppressed to approximately 1/5.5 of the height (length in the width direction) H1 of the air outlet 51, so that the heights H2 and H3 of the accommodation recess 24 are suppressed to be approximately 1/5.5 of the height (length in the transverse direction) H1 of the air outlet 51. The auxiliary front fins 31 and 32 are accommodated only in the horizontal state. Thereby, it is possible to suppress an increase in air resistance during air blowing without increasing the height of the ventilation passage 21, and the external height of the register can be suppressed.

As shown in FIG. 2, the rear movable louver 4 has seven rear fins 40 arranged at intervals in the vertical direction, and each rear fin 40 has an upper and lower support shaft relative to a bearing plate 47 disposed above and below. 40a (FIG. 3). Further, one link bar 46 (FIGS. 1 and 2) is connected to a connecting shaft protruding from one end of each rear fin 40, so that all the rear fins 40 can synchronize and change their direction from side to side. It has a structure.

The rear movable louver 4 is provided with a linking part 45 such as an operating shaft support in the front part of one rear fin 40 at the center, and a linked part 35 such as an operating shaft part provided at the rear of the operating knob 34. When the operating knob 34 is slid in the left-right direction, the direction of the rear fin 40 of the rear movable louver 4 is adjusted in the left-right direction.

As a result, the operation knob 34 adjusts the direction of the front movable louver 3 upward or downward by rotating the operation knob 34 up and down, and moves the front movable louver 3 backward via the linking part 45 by sliding the operation knob 34 in the left and right direction. Adjust the direction of the louver 4 to the left or right.

The register having the above-mentioned structure is mounted on an instrument panel or a dashboard of an automobile, with the air intake port 22 at the rear end of the retainer 2 connected to a ventilation duct (not shown). Although not shown when installed, the bezel 5 provided with the air outlet 51 of the register having the above configuration is fitted and installed on an instrument panel or a dashboard. Air sent from the ventilation duct is blown out from the ventilation path 21 in the retainer 2 through the air outlet 51.

When the front movable louver 3 and the rear movable louver 4 are in the neutral state, the air flow in the ventilation passage 21 flows as shown in FIG. The airflow hitting the concave curved surfaces 31c and 32c at the ends is bent toward the center front fin 30 and blown.

When adjusting the air blowing direction upward, as shown in FIG. 9B, when the operation knob 34 is operated upward, the lower auxiliary front fin 32 maintains the horizontal neutral direction, and the center front fin 30 and the upper auxiliary front fin 32 maintain the horizontal neutral direction. The fins 31 tilt upward, and the direction of air blowing is adjusted upward. When adjusting the air blowing direction downward, as shown in FIG. 9C, when the operation knob 34 is operated downward, the upper auxiliary front fin 31 maintains the horizontal neutral direction, and the center front fin 30 and the lower auxiliary front fin 31 maintain the horizontal neutral direction. The fins 32 tilt downward, and the direction of air blowing is adjusted downward.

When the front movable louver 3 is swung upward, the airflow that hits the concave curved surface 31c at the upstream end of the upper auxiliary front fin 31 is pressed against the upper surface side of the central front fin 30, as shown in FIG. 8B. . The airflow that hits the concave curved surface 32c of the lower auxiliary front fin 32 is pressed against the lower surface side of the center front fin 30 and is blown. Similarly, when the front movable louver 3 is swung downward, as shown in FIG. pressed to the side. The airflow that hits the concave curved surface 31c of the upper auxiliary front fin 31 is pressed against the upper surface side of the central front fin 30 and is blown. In this way, when the front movable louver 3 is in the neutral state and adjusted upward or downward, the airflow flowing between the center front fin 30 and the upper and lower auxiliary front fins 31 and 32 is pressed against the surface of the center front fin 30. The air is blown out.

FIG. 13 shows an explanatory diagram of the resistor 1 of this embodiment when the flow of air when the front movable louver 3 is adjusted downward is analyzed by computer simulation. It is an explanatory view when the flow of the air when the front movable louver is adjusted downward is analyzed by computer simulation. As shown in FIG. 13, the auxiliary front fins 31 and 32, which have concave curved surfaces 31c and 32c at their upstream ends, guide the airflow flowing from upstream so as to press it against the central front fin 30 side. As a result, for example, when the front movable louver 3 is tilted downward at an angle of 30 degrees, in the case of a conventional register, the air blowing angle is 20 degrees downward, as shown in FIG. 12, but in this embodiment In the case of a register having auxiliary front fins 31 and 32 provided with concave curved surfaces 31c and 32c, the air blowing angle can be bent downward to 25 degrees, and the directivity during air blowing can be improved.

In this way, the auxiliary front fins 31 and 32 that maintain the neutral state are provided with partially cylindrical concave curved surfaces 31c and 32c at the upstream end along the left and right direction, so that the wind flowing from upstream is directed toward the upstream side. Since the air hits the concave curved surfaces 31c and 32c at the ends and is pushed against the surface of the central front fin 30, the directivity of the air is improved. When adjusting the direction of air blowing left and right, by sliding the operation knob 34 to the right or left, the rear fin 40 of the rear movable louver 4 rotates around its upper and lower support shafts 40a, and The direction changes within a predetermined angular range, and the air blowing direction is adjusted left and right.

According to the register 1 according to the embodiment of the present specification, the front movable louver 3 is tiltable at intervals between the central front fin 30 which is pivotally supported so as to be tiltable in the lateral direction, and on both sides of the central front fin 30. It is composed of pivotally supported auxiliary front fins 31 and 32. Since the front movable louver 3 is composed of one center front fin 30 and auxiliary front fins 31 and 32 on both sides thereof, the outer shape of the register 1 in the width direction is reduced while improving the directivity of air blowing. be able to. Moreover, since the wind flowing from upstream of the auxiliary front fins 31 and 32 hits the concave curved surfaces 31c and 32c of the upstream end portions formed on the auxiliary front fins 31 and 32, and flows so as to be pressed against the surface of the central front fin 30. Furthermore, the directivity of air blowing can be improved.

1 Register 2 Retainer 3 Front movable louver 4 Rear movable louver 5 Bezel 21 Ventilation passage 22 Air suction port 23 Louver housing portion 24 Accommodation recess 30 Central front fin 30a Fin support shaft 30b Connection shaft 31 Auxiliary front fin 31a Fin support shaft 31b Connection shaft 31c Concave curved surface 32 Auxiliary front fin 32b Connecting shaft 32c Concave curved surface 34 Operation knob 35 Linked part 36 Link bar 36a Connecting hole 36b Long hole 36c Long hole 37 Bearing plate 40 Rear fin 40a Support shaft 45 Linking part 46 Link bar 47 Bearing plate 47b Axial support 51 Air outlet A1 Short axis B1 Longitudinal axis H1 Height H2 Height H3 Height R Radius α Inclination angle

Claims (4)

A substantially rectangular air outlet is provided at the downstream end of the ventilation passage, and within the ventilation passage, a front movable louver with a front fin and a rear movable louver with a rear fin move back and forth and are oriented orthogonally to each other. In the register, the front movable louver is disposed immediately inside the air outlet,
The front movable louver includes a central front fin pivotally supported to be tiltable in the lateral direction of the air outlet, and auxiliary front fins pivotally supported to be tiltable at intervals on both sides of the central front fin in the lateral direction. A fin is provided,
A partially cylindrical concave curved surface is provided at the upstream end of the auxiliary front fin along the longitudinal direction, and the concave curved surface is inclined at an angle with respect to the lateral axis perpendicular to the longitudinal axis of the auxiliary front fin. It is formed with an inclination toward the upstream side,
A register characterized in that the airflow flowing through the ventilation passage from the upstream side hits the concave curved surface and is collected on the center front fin side. A connecting shaft is provided at each longitudinal end of the central front fin of the front movable louver and the auxiliary front fins on both sides, a link bar is connected to the connecting shaft, and the connecting shaft of the auxiliary front fin is connected to the connecting shaft. are connected through long holes,
When the central front fin is tilted in the lateral direction, the auxiliary front fin on the side in the tilting direction tilts in substantially the same direction as the central front fin, and the auxiliary front fin on the opposite side in the tilting direction tilts due to the connecting operation of the link bar. 2. The register according to claim 1, wherein the front fin maintains a substantially neutral state. A shaft support for pivotally supporting the rear fin of the rear movable louver is provided on both side walls in the transverse direction immediately upstream of the front movable louver to protrude inward, and the air outlet is connected to the air outlet on the downstream side of the shaft support. An accommodating recess that substantially completely accommodates the auxiliary front fin in a neutral state is provided inside the auxiliary front fin, and the upstream end of the auxiliary front fin is tilted only toward the center of the ventilation path from the accommodating recess. 3. The register of claim 2, wherein: The inner position of the auxiliary front fin in the housing recess, the end position of the air outlet in the lateral direction, and the inner end position of the rear movable louver are set at substantially the same horizontal position. 4. A register according to claim 3.

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