JP2000108653A - Wind direction adjusting device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind direction adjusting device of simple structure and good appearance, not disturbing the air flow. SOLUTION: A wind direction adjusting device comprises a housing 3 comprising the air outlets, the rotary fins 4 rotatably installed inside of the housing 3 for adjusting the wind direction diffused form the housing 3, the rotary shafts installed on the rotary fins 4, the shaft holes formed on a side wall of the housing 3 for pivotting the rotary shafts, and the angle of rotation regulating means 12a, 13a formed between the shaft hole and the rotary shaft inside of the shaft hole for regulating the rotary fins 4 to be rotated at more than a specified angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind direction adjusting device mounted on a vehicle.

[0002]

2. Description of the Related Art FIG. 10 shows a conventional wind direction adjusting device for a vehicle. A wind direction adjusting device 1 shown in FIG. 10 has a rectangular parallelepiped grill (housing) 3 in which a plurality of fixed fins 2 are integrally formed on an outer frame to form an air outlet, and is disposed orthogonal to the fixed fins 2. And a rotatable turning fin 4.

[0003] Rotating shafts 5 are provided at both ends of the rotating fins 4, and the rotating shafts 5 are rotatably fitted in shaft holes 6 provided in the side wall of the grill 3. FIG. 11 (A-
As shown in A section), a plurality of projections 7 are provided at the ends of the plurality of rotating fins 4, and a plurality of arm portions 8 provided on the link 9 are fitted to the respective projections 7. The plurality of rotating fins 4 are linked by a link 9 so as to interlock with each other.

[0004] A knob 10 is provided on a center fin 4a arranged at the center of the plurality of rotating fins 4.
Is adjusted by operating the knob 10. Further, when the rotation angle of the rotation fin 4 exceeds a set value, the rotation fin 4 disturbs the air flow and causes a fluid noise, so that the end 11 of the link 9 is brought into contact with the inner wall of the grill 3. Thus, the rotation fin 4 is restricted from rotating beyond the set angle.

By the way, in such a wind direction adjusting device 1, extensions 91 and 92 are provided to extend the end 11 of the link 9 in the longitudinal direction in order to regulate the angle. , 92, the wind direction adjusting device 1
In addition to the resistance of the air flowing through the inside, the flow rate is reduced, and it is also a source of noise. Further, since the link 9 is extended in the longitudinal direction as described above, there is a disadvantage that the link 9 at the back of the rotary fin 4 is easily seen from the vehicle interior side and the appearance is poor.

In addition, the projection 7 of the rotating fin 4 and the link 9
Since the rigidity of the fitting portion with the arm 8 is low, even when the link 9 is in contact with the inner wall of the grill 3, the operation of the knob 10 causes the movement of the central fin 4a, resulting in a poor operation feeling. In this case, in order to improve the operational feeling, it is necessary to further increase the rigidity of the fitting portion by further increasing each of the rotating fin 4, the projection 7, the arm 8, and the link 9, but the flow resistance increases. This causes a problem that noise is generated.

To solve such a problem, Japanese Patent Application Laid-Open No.
As described in JP-A-220927, a spacer for regulating the fin angle is connected to the inner wall of the drum housing, and the fin is inserted into the spacer to regulate the angle of the rotating fin.

[0008]

However, in the configuration using the spacer as described above, since the spacer, which is a separate component, is connected to the drum housing, the number of components is large, the number of assembling steps is increased, and the cost is increased. I will. In addition, since the spacer protrudes inside the drum housing, the air resistance increases, and in addition to being a source of noise,
The disadvantage that the protruding part is visible from the vehicle interior side and the appearance is poor remains.

The present invention has been made in view of the above points, and has as its object to provide a wind direction adjusting device for a vehicle which has a simple structure and a good appearance without obstructing the flow of air.

[0010]

In order to achieve the above object, the present invention provides a wind direction adjusting device for a vehicle, comprising: a housing forming an air outlet; and a wind direction rotatably provided inside the housing and blowing from the housing. A rotating fin for adjusting the rotation, a rotating shaft provided on the rotating fin, a shaft hole formed in the side wall of the housing to support the rotating shaft, and the shaft hole inside the shaft hole. And a rotation angle restricting means formed between the rotation shaft and the rotation shaft to restrict the rotation of the rotation fin by a predetermined angle or more. by this,
The fin angle regulating means does not obstruct the flow of air inside the grill, does not become a source of noise, and does not deteriorate the appearance from the vehicle interior side.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 9 show a vehicle wind direction adjusting device according to an embodiment of the present invention, which will be described with reference to these drawings. 1 to 9,
The same members as those of the prior art shown in FIGS. 10 and 11 are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 is a perspective view of a wind direction adjusting device according to the present invention. As shown in FIG. 1, a wind direction adjusting device 1 includes a rectangular parallelepiped grill (housing) 3 in which a plurality of fixed fins 2 are integrally formed on an outer frame to form an air outlet, and is orthogonal to the fixed fins 2. And a plurality of rotatable fins 4 arranged and rotatable.
Are connected by a link 9a. Further, an operation knob 10 is provided on the vehicle interior side of the center fin 4a at the center of the plurality of rotating fins 4. Further, a rotating shaft 5 is provided at both ends of the rotating fin 4, and the rotating shaft 5 is rotatably fitted in a shaft hole 6 in a side wall of the grill 3.

As shown in FIG. 2, one of the pivot shafts 5 of the central fin 4a is formed as an angle regulating shaft 12, and the angle regulating shaft 12 as the pivot shaft has two flat surfaces 121 on its side. , 122 and a cylindrical portion 12b which is a shaft main body. On the other hand, as shown in FIG. 3, the grill 3 has an angle regulating shaft 12 of the central fin 4a.
An angle regulating hole 13 as a shaft hole is provided at a position corresponding to the above. The angle regulating hole 13 is provided outside the side wall of the grill 3 and has a sector shape having a sector shape in cross section and two planes 131 and 132 (a sector shape). Notch with cross section) 13a and grill 3
And a cylindrical hole 13b having a circular cross section provided on the inner side of the side wall. These wedges 12a and sector 13
a constitutes a rotation angle restricting means.

When the center fin 4a is assembled to the grill 3, as shown in FIG. 4, the wedge 12a of the angle regulating shaft 12 and the angle regulating hole 13 are formed in the side wall of the grill.
And the cylindrical portion 12b of the angle regulating shaft 12 and the cylindrical hole 13b of the angle regulating hole 13 are fitted to each other. A gap is formed between both outer side surfaces of the wedge portion 12a and both inner side surfaces of the fan-shaped portion 13a. When the turning fin 4 is turned to reach a predetermined value by turning the turning fin 4, FIG. Thus, the side plane 122 formed on the wedge 12a and the side plane 13 formed on the sector 13a
2 comes into contact with the shaft 2 and further rotation is restricted. On the other hand, when the rotating fin 4 is rotated in the opposite direction and the rotation angle reaches a predetermined value, the side plane 121 formed on the wedge 12a and the side plane 131 formed on the sector 13a Contact, and further rotation is restricted.

As shown in FIG. 6, the link 9a is not formed with the extension portions 91 and 92 provided in the link 9 of the conventional example, and each of the fins 4 can be connected in the longitudinal direction. The range is shortened. The vehicle wind direction adjusting device as one embodiment of the present invention is configured as described above, and the wedge portion 12a for regulating the angle of the center fin 4a and the sector portion 13a are provided inside the side wall of the grill 3; Since there is no structure that regulates the angle of the fins in the air flow path inside the grill 3, there is no resistance to the air flow or a source of noise, and the appearance from the passenger compartment side is poor. It won't be.

Further, since the size of the link 9a can be reduced, the resistance of the air flow and the generation of noise caused by the link 9a can be suppressed, and the appearance from the vehicle interior can be prevented from being deteriorated. Further, the range of the rotation angle can be arbitrarily set by changing the angle α of the wedge portion 12a and the angle β of the sector 13a. Further, the angle restricting shaft 12 of the rotation restricting portion has the cylindrical hole 13b and the wedge 1
2a, the support rigidity of the bearing portion can be increased by the cylindrical portion 13b, and even when the knob 10 is further operated in the angle-restricted state, the center fin 4a is hard to move, and the operation feeling is improved. There is also.

The grill 3 and the rotating fins (including the center fin 4a) 4 of the present embodiment are formed by a double injection method as shown in FIGS.
The mold 14 used at the time of this molding is provided with both the shape of the grill and the shape of the fin. The grill 3 and the rotating fin 4 are made of different resins that are not mixed with each other (for example, ABS resin is used for the grill 3 and PP resin is used for the rotating fin 4), and both are injected from different gates.

As shown in FIG. 7, an ABS for grill molding is used.
When the resin is injected from the grill injection gate 15, the fin injection gate 16 (corresponding to the positions of the shaft hole 6 and the angle regulating hole 13 on the grill side wall) into which the resin for forming the fin is injected is closed, and the fan-shaped portion 13a and the cylinder are formed. The molds 17 and 18 (hatched portions in FIG. 7) for molding the holes 13b are combined to prevent the resin from entering the fin mold.

[0019] Thus, the grill 3 is injected by the injection of the ABS resin.
After the molding of the fin injection gate 16 as shown in FIG. 8, the molds 17 and 18 that have closed the fin injection gate 16 are removed, and the mold 19 for molding the wedge portion 12a of the central fin 4a is inserted.
The rotary fin 4 is formed by injecting a PP resin from the above. At this time, since the shaft portion other than the wedge portion 12a is formed by using the hole of the grill 3 already formed as a mold, the gap between the rotating shaft 5 and the shaft hole 6 and the angle regulating shaft 12 and the angle regulating hole are formed. 13
There is no variation in the gap between the two.

Therefore, it is not necessary to insert a plurality of rotating fins (including the center fin 4a) into the shaft hole 6 and the angle regulating hole 13 of the grill 3, respectively, so that the number of assembling steps can be greatly reduced. Further, since the rotation range of the rotation fins 4 can be easily changed by changing the mold for forming the wedge portion 12a, it is not necessary to largely change the mold, and the cost can be reduced. Become. Further, the gap between the fitting portion between the rotating shaft 5 and the shaft hole 6 and the gap between the fitting portion between the angle regulating shaft 12 and the angle regulating hole 13 can be kept constant, and the friction between the shaft and the hole becomes constant. Thus, the operational feeling can be improved.

Incidentally, the wedge portion 12a and the sector portion 13a are not limited to the shapes of the above-described embodiment, and a part of the angle regulating shaft 12 is cut away as shown in FIG.
a ′ and a projection 13
a 'may be provided to restrict the angle by abutment between the rectangular portion 12a' and the protruding portion 13a ', which has the same effect as described above.

[0022]

As described above in detail, according to the wind direction adjusting device for a vehicle of the present invention, a housing forming an air outlet and a wind direction blown from the housing are provided rotatably provided inside the housing. A rotating fin, a rotating shaft provided on the rotating fin, a shaft hole formed in a side wall of the housing to support the rotating shaft, and the shaft hole and the rotating inside the shaft hole. A rotation angle restricting means formed between the shaft and the shaft to restrict the rotation of the rotation fin more than a predetermined angle. It does not become a source of generation and the appearance from the vehicle interior side does not deteriorate.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vehicle wind direction adjusting device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part showing a shaft of a fin of the vehicle wind direction adjusting device as one embodiment of the present invention.

FIG. 3 is a perspective view of a main part showing a hole of a grill of the wind direction adjusting device for a vehicle as one embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a fitting portion between a wedge portion and a fan-shaped portion of the vehicle wind direction adjusting device as one embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part showing a wedge portion and a fan-shaped portion when the fin is rotated in the vehicle wind direction adjusting device as one embodiment of the present invention.

FIG. 6 is a cross-sectional view of a principal part showing a vehicle wind direction adjusting device as one embodiment of the present invention, and is a diagram corresponding to FIG. 11;

FIG. 7 is a schematic cross-sectional view showing a grill forming portion of a forming die of the vehicle wind direction adjusting device as one embodiment of the present invention, and hatching showing a cross section is omitted.

FIG. 8 is a schematic sectional view showing a fin forming portion of a forming die of the vehicle wind direction adjusting device as one embodiment of the present invention, and hatching showing a cross section is omitted.

FIG. 9 is a schematic end view showing another embodiment of the wedge portion and the fan-shaped portion of the vehicle wind direction adjusting device as one embodiment of the present invention.

FIG. 10 is a perspective view showing a conventional wind direction adjusting device for a vehicle.

FIG. 11A shows a conventional vehicle wind direction adjusting device.
It is sectional drawing in the -A arrow direction.

[Explanation of symbols]

 Reference Signs List 3 Grill (housing) 4 Rotating fin 4a Central fin 5 Fin shaft 9, 9a Link 11 Link end 12 Angle regulating shaft (rotating shaft) 12a Wedge (rotating angle regulating means) 12b Cylindrical portion 13 Angle regulating hole (Shaft hole) 13a Sector (rotation angle restricting means) 13b Cylindrical hole 91,92 Link extension 121,122 Side plane formed in wedge 131,132 Side plane formed in sector

Claims (1)

[Claims] 1. A housing forming an air outlet, a rotatable fin provided in the housing so as to be rotatable and adjusting a direction of air blown from the housing, and a rotatable shaft provided on the rotatable fin. A shaft hole formed in a side wall of the housing and supporting the rotation shaft, and the rotation fin formed between the shaft hole and the rotation shaft inside the shaft hole so that the rotation fin is turned by a predetermined angle or more. A wind direction adjusting device for a vehicle, comprising: a rotation angle restricting means for restricting movement.