JPH1151459A - Structure of air outlet for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable regulation of the quantity of air to be let out and execution of operations for opening and closing of an air outlet only by one dial. SOLUTION: A damper 17 for regulating the quantity of air to be let out and a louver housing 30 conducting opening and closing of an air outlet 13 are connected to one dial 22 and thereby the direction of the louver housing 30 can be changed to a position of closing of the air outlet 13 or a position of opening thereof by operating the dial 22 only when the damper 17 is put in a state of closing an air passage by the operation of the dial 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air outlet structure of an air conditioner installed in a motor vehicle, and more particularly to a single dial for adjusting a blowing amount and opening and closing an air outlet. The present invention relates to a vehicle air outlet structure as described above.

[0002]

2. Description of the Related Art As a conventional example of an air outlet structure for supplying air generated by driving an air conditioner installed in an automobile into a vehicle cabin, there is, for example, Japanese Utility Model Publication No. 52-3564.
No. 8 discloses an air outlet structure. This air outlet structure has a structure in which a cylindrical outlet grill 2 is rotated about a pin 3 in a grill base 1 as shown in FIGS. By rotating the grill 2 appropriately,
The opening 1a provided in the grill base 1 can be completely closed, and by rotating the outlet grill 2 about 90 degrees from the completely closed position, the opening 1a is opened, and the opening 1a is opened toward the passenger compartment. Can be blown. In other words, the opening 1a provided in the grill base 1 can be opened and closed by rotating the outread grill 2, and the outlet grill 2 is completely closed from the position where the opening 1a is completely opened. To adjust the amount of air blown into the passenger compartment up to the position where the air is blown, and when the air blow is not required, it is possible to enhance the appearance of the air outlet by completely closing the opening 1a by the outlet grill 2. It is a structure that can be done. 4
Are vertical fins supported in the outlet grille, 5
Indicates a horizontal fin.

[0003]

However, in the conventional air outlet structure, the outlet is required to reduce the amount of air blown from the opening 1a to, for example, about 1/2 of the maximum supply amount. If the grill 2 is partially closed, the direction of rotation of the outlet grill 2 determines itself and the wind direction.
There is a problem that it is impossible to adjust the wind direction to the desired position direction.

When the direction of the outlet grill 2 is changed so as to reduce the amount of air blown from the opening 1a, the gap between the edge of the opening 1a and the outer peripheral surface of the outlet grill 2 is adjusted. The flow resistance of the passing air increases, which causes abnormal noise.

The turning operation of the outlet grill 2 is to directly touch the outlet grill 2 and to rotate the outlet grill 2. Therefore, when the outlet grill 2 turns, the outlet grill 2 is connected to the outlet grill 2. The operator's finger may be pinched between the opening 1a.

The present invention has been made in view of the conventional drawbacks, and includes a damper for adjusting the amount of air blown into an air blower case connected to an air duct of a vehicle, and a louver for adjusting the wind direction. And a single dial that can rotate both the damper and the louver housing, and adjust the air volume and direction by operating the single dial. To be able to do
A first object is to enhance workability for adjusting the air volume and the air direction.

Further, in the present invention, when the air outlet is closed by the louver housing, the air passage is closed by the damper so that air leakage and air leak between the air outlet and the louver housing are caused. A second object is to prevent occurrence of abnormal noise.

[0008]

In order to achieve the first and second objects, according to the present invention, an air outlet connected to a finisher having an air outlet and an inlet connected to an air duct are provided. A blower case having a blower, and a damper for opening and closing a blower passage in the blower case and adjusting a flow rate is supported near the inlet in the case, and the blower opening is higher than the damper. A cylindrical louver housing having a side wall surface capable of substantially completely closing the air outlet is pivotally supported near the air outlet in the case, and the damper is further moved from a fully open position to a fully closed position of the blower case. After the damper is in the fully closed position, the louver housing is rotated until the side wall surface closes the air outlet. It is characterized in that it is the air outlet structure for a vehicle provided with air outlet opening and closing control mechanism capable.

According to a second aspect of the present invention, in addition to the first aspect, the air outlet opening / closing control mechanism includes a single dial supported on the outside of the blower case, and the dial includes a damper. A guide pin protruding from an arm locked with the shaft hole is loosely fitted, and interlocks with rotation of the dial to rotate the damper within a range from a fully open position to a fully closed position. 2 and the rotation of the dial which is continued after the damper is in the fully closed position, meshes with the pinion which is engaged with the support shaft of the louver housing, and the side wall of the louver housing is air-tight. After the damper reaches the fully closed position, the rack for rotating the outlet to the position to close the outlet, and a first pin that disengages the guide pin projecting from the arm from the second groove. Air blow for vehicles with grooves It is characterized in that a mouth structure.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. First, the components constituting the air outlet structure of the present invention will be described with reference to FIG.
Is a cylindrical blower case connected to an air duct of an in-vehicle air conditioner (not shown).
Is open in both front and rear directions, the rear opening of which is an inlet 12A connected to the air duct, and the front opening is a semi-cylindrical air outlet 12; Is a finisher 14 having an air outlet 13
Is a locking piece 15 provided on the finisher 14.
And a locking action with a locking piece 16 provided in the blower port case 11.

In the vicinity of the rear opening inside the blower case 11, a damper 17 for opening and closing the ventilation passage inside the blower case 11 and controlling the air volume is supported. Around the periphery of the damper 17, an air vent case 11
A frame-shaped seal piece 18 for improving airtightness with the inner surface of the rim is adhered and held. Further, a square shaft 20 provided at one end of an arm 19 positioned outside the blower case 11 is engaged with the damper 17 through a through hole 11A formed in the blower case 11. And this arm 1
A guide pin 21 is provided at the other end of the projection 9.

Reference numeral 22 denotes a shaft hole 2 rotatably supported by a support shaft 23 formed on the outer surface of the finisher 14.
The dial 22 has a guide groove 25 in which the guide pin 21 is loosely fitted. The guide groove 25 is formed in the shaft hole 24.
And a first groove 25A having an arc shape centered on
And a second groove 25B extending from one end of the groove 25A toward the shaft hole 24.

An arc-shaped rack 26 is formed on a side surface of the dial 22 along an arc surface centered on the shaft hole 24 (see FIGS. 1A and 1B). The rack 26 is engaged with a pinion 27. A round shaft 27A protrudes from one side of the pinion 27, and a square shaft hole 28 is formed at the center thereof. A projection 29 protrudes from the outer peripheral surface of the pinion 27.

Reference numeral 30 denotes an air outlet 1 in the blower case 11.
2 is a louver housing fitted at a position near the louver housing 30.
OB and the left and right side wall surfaces 30C and 30D are formed in a substantially cylindrical shape, and the upper wall surface 30A has an area capable of substantially closing the air outlet 13 and has the same curved surface as the curved surface of the finisher 14. Further, inside the louver housing 30, a plurality of horizontal fins 31 and vertical fins 32 are rotatably supported via shaft holes 33 formed in the louver housing 30. Each of the horizontal fins 31 is connected to each other via a link 34, each of the vertical fins 32 is connected to each other via a link 35, and one of the horizontal fins 31 located at the center has its tip engaging claw 36A
An operation knob 36 is mounted so as to engage with the vertical fins 32. By moving the operation knob 36 in the horizontal or vertical direction, each vertical fin 32 or each horizontal fin 31 can be deflected. .

Further, of the left and right side wall surfaces 30C and 30D of the louver housing 30, a square shaft 37 that fits into the square shaft hole 28 of the pinion 27 protrudes from one of the side wall surfaces 30C on the pinion 27 side. A round shaft 37A protrudes from the other side wall surface 30D on the opposite side (see FIG. 1A) (see FIG. 1D). The one side wall surface 30C side of the louver housing 30 is provided with the round shaft 27A of the pinion 27 in the blower port case 11 by fitting the square shaft 37 into the square shaft hole 28 of the pinion 27. The left and right axial grooves 39, 39 are rotatably fitted into and supported by one of the left and right axial grooves 39, 39, and the round shaft 37A is provided on the other side wall surface 30D side of the louver housing 30 by the left and right axial grooves 39, It is rotatably fitted to and supported by the other of 39. Further, projections 38 are provided on both left and right side surfaces of the louver housing 30 so as to protrude.
The protrusion 38 is fitted into an arc-shaped groove 40 formed on the inner side surface of the left and right side walls of the blower case 11. The groove bottoms at both ends of both right and left arc-shaped grooves 40 are shown in FIG.
As is apparent from (E), a projection 41 having a chevron shape is provided, and the spherical tip 38A of the projection 38 guided in the arc-shaped groove 40 gets over the projection 41 and is provided at the end of the arc-shaped groove 40. When the louver housing 30 is positioned, the louver housing 30 is positioned so as not to cause backlash inside the air outlet case 11. A stopper 42 protruding from the outer surface of the blower case 11 regulates the turning position of the dial 22 (see FIG. 2C).

The above is the configuration of the members of the present embodiment. Next, the assembling will be described. First, a damper 17 to which a seal piece 18 is attached is supported inside the blower case 11. Then, inside the louver housing 30, a plurality of horizontal fins 31 and vertical fins 32 connected by links 34 and 35 are supported by a shaft hole 33, and then the louver housing 30 is connected to the air outlet 1 of the air outlet case 11.
Assemble into the blower case 11 from two sides. At this time, the square shaft 37 and the round shaft 3 protruding from the side surface of the louver housing 30 are provided.
7A is fitted into the axial groove 39 of the blower case 11, and at the same time, the projection 38 projecting from the side surface of the louver housing 30 is fitted into the arc-shaped groove 40 formed on the inner surface of the blower case 11. I do.

Next, the air outlet 12 of the air outlet case 11 will be described.
After the finisher 14 is covered, and the finisher 14 is attached to the blower port case 11 by the locking pieces 15 and the lock claws 16, the finisher 14 is laterally protruded from the shaft groove 39 of the blower port case 11. The square shaft hole 2 of the pinion 27 is
8 is engaged.

Next, the pinion 27 is mounted on a rack 26 provided on the dial 22 while a shaft hole 24 provided on the dial 22 is fitted and supported on a support shaft 23 projecting from the side surface of the finisher 14. To the corresponding position. Then, the square shaft 2 provided at one end of the arm 19
0 is fitted into the shaft hole 17A of the damper 17, and the guide pin 21 provided at the other end of the arm 19 is loosely fitted into the guide groove 25 of the dial 22 so that the desired air outlet is formed. Constitute.

Next, the operation of the air outlet will be described. As shown in FIG. 2, the direction of the louver housing 30 when the damper 17 is in the fully open position is set in advance so that the air passage axis of the louver housing 30 coincides with the air passage axis of the air outlet case 11. Further, at this time, the dial 22 is in contact with the stopper 42 and the arm 19 is rotatably connected to the damper 17.
The guide pin 21 protruding from the second groove portion 25B of the dial 22 is located closer to the first groove portion 25A.

When an air conditioner (not shown) is driven in this state, air sent from the air conditioner through an air duct (not shown) passes through the air outlet case 11 and the air outlet 13 of the finisher 14. It is blown into the cabin. Therefore, when it is desired to stop the blowing by the operation of the damper 17, the protruding portion of the dial 22, which partially protrudes from the long hole 14A on the front surface of the finisher 14, is rotated in the direction of the arrow (A) in FIG. And the guide pin 2 engaged with the guide groove 25 following the rotation of the dial 22.
1 rotates the arm 19 clockwise in the direction of the arrow (B) in FIG. Following the rotation of the arm 19 in the clockwise direction, the damper 17 also moves
1, and as a result, the inside of the blower port case 11 is closed by the damper 17 and the blowing into the vehicle compartment is interrupted (see FIG. 3).

Thus, the inside of the air outlet case 11 is the damper 1.
7 and the above dial 2
2 continues to rotate in the direction A, the projection 29 provided on the pinion 27 comes into contact with the end face 26A of the rack 26, and the rack 26 and the pinion 27 then mesh.
When the rotation of the dial 22 further in the direction A continues, the louver housing 30 rotates in the direction of the arrow (C) in FIG. The air outlet 13 is completely closed by the upper wall surface 30A of the louver housing 30 at the time when the louver housing 30 is rotated (see FIG. 4). When the dial 22 rotates when the louver housing 30 is to be rotated, the guide pin 21 provided on the arm 19 enters the first groove 25A provided on the dial 22. Even if is not operated, the rotation of the dial 22 can be continued.

In the present embodiment, as described above, the air outlet 13 provided in the finisher 14 can be completely closed after the air passage in the blower case 11 is completely closed by the rotation of the damper 17. The air outlet 13 is completely opened by performing a dial operation for returning from that state to the opposite direction, and if the angle of the damper 17 is set to a desired angle by the dial 22, the air is sent from an air duct (not shown). Incoming air can be blown into the vehicle interior at a desired air volume.

[0023]

As described above, according to the vehicle air outlet structure of the present invention, the operation of one dial 22 allows the damper 19 and the louver housing 30 to be operated. Since the dials 22 can adjust the amount of air blown into the vehicle interior and close the air outlet 13 when not in use, the operability is excellent.

Also, in the present invention, the air outlet 13 cannot be closed unless the air passage in the air outlet case 11 is completely closed by the rotation of the damper 19, and the air outlet 13
The louver housing 3 cannot be opened until the louver housing 3 is completely opened.
0, the louver housing 30 and the air outlet 13 during the closing or opening of the air outlet 13 during the operation of FIG.
There is no possibility of air leakage from the gap between the air flow and the air outlet, thereby making it possible to prevent the generation of abnormal noise or the like due to the air leakage.

When the air outlet 13 is closed by the louver housing 30, the upper wall surface 30A of the louver housing 30 is flush with the surface of the finisher 14 so that no step is formed, so that the appearance of the air outlet is improved.

Further, in the present invention, the operation for rotating the damper 17 and the louver housing 30 is a simple operation of rotating the dial 22 which is partially protruded from the front side of the air outlet. Since it can be performed, the air volume adjustment operation and the opening / closing operation of the air outlet 13 are easy, and a finger is not pinched between the air outlet 13 and the louver housing as in the related art.

[Brief description of the drawings]

1 (A) is an exploded perspective view of an air outlet structure according to the present invention, FIG. 1 (B) is a perspective view showing an opposite surface of a dial,
(C) is a perspective view showing another side of the pinion in (A), (D) is a perspective view of arrow D of the louver housing in (A), and (E) is a cross-sectional view showing the inside of the arc-shaped groove.

2A is a front view of an air outlet structure according to the present invention, FIG. 2B is a side sectional view thereof, and FIG. 2C is a right side view thereof.

3A is a front view of the air outlet structure according to the present invention when the damper is closed, FIG. 3B is a side sectional view thereof, and FIG. 3C is a right side view thereof.

4A is a front view of the air outlet structure according to the present invention when the damper and the air outlet are closed, FIG. 4B is a side sectional view thereof, and FIG. 4C is a right side view thereof.

FIG. 5 is a front view showing a conventional air outlet.

FIG. 6 is a sectional view of a main part of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Air blow case 11A ... Through-hole 12 ... Outlet 13 ... Air outlet 14 ... Finisher 14A ... Long hole 15 ... Locking piece 16 ... Locking piece 17 ... Damper 18 ... Sealing piece 19 ... Arm 20 ... Square axis 21 ... Guide pin 22 ... Dial 23 ... Support shaft 24 ... Shaft hole 25 ... Guide groove 26 ... Rack 26A ... End face 27 ... Pinion 27A ... Round shaft 28 ... Square shaft hole 29 ... Protrusion 30 ... Louver housing 30A, 30B ... Top and bottom wall surface 30C , 30D ... left and right side wall surfaces 31 ... horizontal fin 32 ... vertical fin 33 ... shaft hole 34 ... link 35 ... link 36 ... operating knob 36A ... engagement link 37 ... square shaft 37A ... round shaft 38 ... projection 38A ... spherical tip 39 ... Shaft groove 40: Arc-shaped groove 41: Projection 42: Stopper

Claims (2)

[Claims] An air outlet case (11) having an air outlet (12) connected to a finisher (14) having an air outlet (13) and an inlet (12A) connected to an air duct is provided. The above inlet in the case (12A)
In the vicinity, a damper (17) for adjusting the air volume by opening and closing the air passage inside the air outlet case (11) is axially supported, and the air outlet case (11) is located within the air outlet case (11) rather than the damper (17). A cylindrical louver housing (30) having a side wall surface (30A) capable of substantially completely closing the air outlet (13) is axially supported near the air outlet (12), and the damper (17) is further mounted. , The blower case (1
It can rotate from the fully open position of 1) to the fully closed position,
After the damper (17) is fully closed, the louver housing (30) can be continuously rotated until the side wall surface (30A) closes the air outlet (13). An air outlet structure for a vehicle, comprising an outlet opening / closing control mechanism. 2. The air outlet opening / closing control mechanism includes a dial (2) rotatably supported on the outside of the blower case (11).
2), and the dial (22) includes a damper (1).
A guide pin (21) projecting from an arm (19) engaged with the shaft hole (17A) of (7) is loosely fitted, and the damper (17) is moved in conjunction with the rotation of the dial (22). The second groove (25B) for rotating the lever within the range from the fully open position to the fully closed position, and the rotation of the dial (22) continued after the damper (17) has reached the fully closed position. The louver housing (30) meshes with a pinion (27) engaged with a support shaft (37) of the housing (30).
(26) for rotating the side wall (30A) to a position where the side wall (30A) closes the air outlet (13).
After the damper (17) reaches the fully closed position, the guide pin (21) protruding from the arm (19).
And the first groove (2) for disengaging the second groove (25B) from the first groove (2B).
The air outlet structure for a vehicle according to claim 1, wherein 5A) is provided.