JP2001263775A - Wind direction adjuster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that air supply efficiency lowers because components projecting into a case disturbs air supplied from an air outlet. SOLUTION: In a wind direction adjuster where a plurality of wind direction adjusting blades 3 are supported rotatably at an air outlet 2 opened in a case 1 and the wind direction adjusting blades 3 are interlocked through a link 4, one of shaft parts 3c, 3d projecting from the opposite ends of the wind direction adjusting blade 3 is fitted in a fixing hole 1b opened in the side plate 1a of the case 1 and the shaft part 3c is stopped at the bearing part 4b of the link 4 fitted such that the forward end on the outside of the case 1 does not project into the case 1. Since a component disturbing the flow of air supplied from the air outlet 2 does not projects into the case 1, air supply efficiency can be enhanced.

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 for preventing the air flow of air blown from an air outlet from being disturbed.

[0002]

2. Description of the Related Art In a vehicle equipped with a conventional air conditioner, an air outlet for blowing air conditioned by the air conditioner into a room is opened in a dashboard or the like. There is provided a wind direction adjusting device for adjusting the blowing direction.

[0003] As a conventional wind direction adjusting device, for example, a device described in Japanese Utility Model Laid-Open No. 6-10743 is known.

In the wind direction adjusting device disclosed in the above publication, bearing members are press-fitted from the outside of a case into a plurality of mounting holes opened on both sides of a casing, and a pivot shaft protruding from both sides of a blowing blade is inserted into these bearing members. By movably fitting and inserting the press contact piece between one side wall plate of the casing and the bearing member by elastically deforming it, each blow blade is held at the adjustment position using the elastic force of the press contact piece. This has the effect that the function of maintaining the angle of the blowing blade can be maintained for a long period of time.

On the other hand, as another wind direction adjusting device, those shown in FIGS. 8 and 9 are known.

In the wind direction adjusting device shown in FIGS. 8 and 9, a plurality of mounting holes b are opened on both side plates of a case a, and shaft portions d projecting from both ends of a wind direction adjusting blade c are formed in these mounting holes b. Each of the wind direction adjusting blades c is rotatably supported and the case a
When the operation knob f provided on one of the wind direction adjusting blades c is operated by being linked by the link e provided inside the
Each wind direction adjusting blade c is configured to be simultaneously rotated in the same direction.

[0007]

In the wind direction adjusting device disclosed in the above publication, a slit is formed at one end of the bearing member to facilitate press-fitting into the mounting hole of the casing.
Since one end of the slit protrudes into the casing, the air flow of the air blown out from the air outlet by the slit is disturbed, which hinders the adjustment of the wind direction and reduces the blowing efficiency. There are drawbacks.

Further, since one end of the bearing member protruding into the casing is visible from the air outlet, the appearance is poor, and the link and the outlet blade that link the outlet blades are not fixed in the axial direction. There is also a drawback such as backlash occurring between the two.

On the other hand, in the wind direction adjusting device shown in FIGS. 8 and 9, a link e provided inside the case a causes a turbulence in the airflow of the air blown out from the air outlet, so that the wind direction adjusting device disclosed in the aforementioned publication is disclosed. As in the case of the device, there is a drawback that it hinders the adjustment of the wind direction, and that the link e serves as a ventilation resistance, thereby lowering the blowing efficiency.

A link e provided inside the case a
However, there is also a drawback that the appearance is poor because it is visible from the air outlet.

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and provides a wind direction adjusting device in which parts which disturb the air flow or lower the appearance do not protrude into the case. It is an object of the present invention to reduce the ventilation resistance and thereby improve the blowing efficiency, and at the same time to improve the appearance.

[0012]

In order to achieve the above object, a wind direction adjusting device according to the present invention comprises a plurality of wind direction adjusting blades rotatably supported at an air outlet opening in a case, and the wind direction adjusting device. In the wind direction adjusting device in which the blades are linked to each other by a link, one of the shaft portions protruding from both ends of the wind direction adjusting blade is inserted into a mounting hole opened in a side plate of the case, and a tip from the outside of the case is provided. The shaft is locked to a bearing of a link fitted so as not to protrude into the case.

[0013] With the above structure, parts that disturb the airflow of the air blown out from the air blowout port do not protrude into the case, so that the airflow resistance can be reduced and the blowout efficiency can be improved accordingly. The appearance is also improved because the bearing is not visible from the air outlet.

Further, since the respective wind direction adjusting blades can be interlocked only by locking the shaft portion of the wind direction adjusting blade to the bearing portion of the link, the assembling work of the wind direction adjusting blade and the link can be easily performed in a short time. .

In order to achieve the above object, in the wind direction adjusting device of the present invention, the bearing portion and a link portion interlocking the bearing portion are connected by a hinge.

According to the above configuration, the bearing portion and the link portion can be integrally formed, so that the number of parts and the manufacturing cost associated therewith can be reduced.

In order to achieve the above object, a wind direction adjusting device according to the present invention comprises an operation dial for adjusting a wind direction protruding from one of the bearings of the link.

According to the above configuration, since the link and the operation dial can be integrally formed, the number of parts can be reduced, and the production cost can be reduced accordingly.

[0019]

FIG. 1 shows a first embodiment of the present invention.
This will be described in detail with reference to the drawings shown in FIGS.

FIG. 1 is a perspective view of the wind direction adjusting device, FIG. 2 is an exploded perspective view of the same, FIG. 3 is a sectional view taken along the line AA of FIG. 1, and FIG. 4 shows a state in which the shaft is locked to the bearing. It is sectional drawing.

Case 1 installed on a dashboard or the like
Is formed in a rectangular box shape using a general-purpose resin such as an ABS or a PP composite material, and has an air outlet 2 on the front surface.

On one side plate 1a of the case 1 located on both sides of the air outlet 2, a plurality of mounting holes 1b are opened at equal intervals in the vertical direction, and the other side is provided with the mounting holes 1b.
A plurality of mounting holes 1c having a smaller diameter than b, and rectangular recesses 1d are opened at equal intervals in the vertical direction between the mounting holes 1c.

The air outlet 2 of the case 1 has a plurality of
For example, three wind direction adjusting blades 3 are provided.

At one end of these wind direction adjusting blades 3,
A boss 3a slightly larger in diameter than the mounting hole 1b and a boss 3b slightly larger in diameter than the mounting hole 1c are provided at the other end.
The end faces of the bosses 3a and 3b abut against the side plate 1a of the case 1 from the inside, so that there is no backlash in the axial direction.
Shafts 3c and 3d are protrudingly provided at the center of the end faces of a and 3b. One of the shafts 3c is inserted into the mounting hole 1b from the inside of the case 1.

The shaft portion 3c has a cylindrical shape sufficiently smaller in diameter than the mounting hole 1b opened in the one side plate 1a of the case 1, has elasticity in the radial direction, and has a link 4 on its outer peripheral surface.
An engaging protrusion 3d is provided to engage with the bearing portion 4b protruding from the front end.

The link 4 links the wind direction adjusting blades 3 with each other. The link portion 4a and the bearing portion 4b are integrally formed, and the link portion 4a is formed to be elongated in the vertical direction.
The bearing 4b is connected to the front edge via a hinge 4c.

The bearing portion 4b is provided on one side plate 1 of the case 1.
a locking projection 3e which is slidably fitted from the outside of the case 1 into a mounting hole 1b opened to the outside of the case 1 and protrudes from the shaft 3c of the wind direction adjusting blade 3 on the outer periphery. A locking hole 4d for locking is formed.

On the other hand, the shaft portion 3d protruding from the other end of the wind direction adjusting blade 3 has a slightly smaller diameter than the mounting hole 1c opened in the other side plate 1a of the case 1, and is located at the upper and lower stages. The shaft portion 3d of the wind direction adjusting blade 3 is fitted into the mounting hole 1c from the inside of the case 1 without any gap, and the shaft portion 3d of the wind direction adjusting blade 3 located in the middle stage is connected to the other side plate 1 of the case 1.
The spacer 5 is housed in a concave portion 1d formed in a, and is press-fitted into a mounting hole 5a of a spacer 5 formed into a square plate shape by engineering plastic such as polyacetal.

An operation knob 6 is slidably mounted on the middle-stage wind direction adjusting blade 3 so as to be slidable in the horizontal direction.

The front end of the operation knob 6 projects forward of the air outlet 2, and when the operation knob 6 is operated in the up and down direction, the wind direction adjusting blades 3 linked by the link 4 are simultaneously moved in the up and down direction. While being rotated, the rear end of the operation knob 6 is bifurcated, and one of a plurality of wind direction adjusting blades 7 for adjusting the wind direction in the left-right direction is engaged with the forked portion 6a.

A wind direction adjusting blade 7 for adjusting the wind direction in the left-right direction.
Is vertically installed behind a wind direction adjusting blade 3 provided in the air outlet 2 to adjust the wind direction in a vertical direction,
They are linked to each other by a link 8.

Next, the operation of the wind direction adjusting device constructed as described above will be described. When the operating knob 6 provided on one of the wind direction adjusting blades 3 is operated up and down, the wind direction adjusting blade 3 provided with the operating knob 6 is operated. Is rotated, and the bearing portion 4b locked to the shaft portion 3c protruding from one end of the wind direction adjusting blade 3 slides and rotates in the mounting hole 1b.

As a result, the link portion 4a connected to the bearing portion 4b moves vertically through the hinge 4c, so that the bearing portion 4b locked to the shaft portion 3c of the other wind direction adjusting blade 3 also has a mounting hole. 1b, the respective wind direction adjusting blades 3 are simultaneously rotated in the same direction, whereby the vertical wind direction of the air blown from the air outlet 2 can be adjusted, and the operation knob 6 can be adjusted. The shaft portion 3d protruding from the other end of the wind direction adjusting blade 3 provided with is press-fitted into a mounting hole 5a of a spacer 5 formed of engineering plastic such as polyacetal, and an appropriate fit is obtained by tightly fitting the two. Since the resistance is obtained, the operational feeling is improved, and the wind direction adjusting blade 3 can be reliably held at the adjusted angle.

A link 4 for linking each wind direction adjusting blade 3
Is located outside the case 1 and there are no parts in the case 1 that disturb the air flow, so that the ventilation resistance of the air blown out from the air blowout port 2 is reduced, so that the blowing efficiency can be improved. At the same time, the bearing 4b of the link 4 cannot be seen from the air outlet 2, so that the appearance is improved.

FIGS. 5 and 6 show a second embodiment in which an operation dial 10 for adjusting the wind direction is provided integrally with the link 4 and the operation knob 6 employed in the first embodiment is eliminated. Next, this will be described.

The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the second embodiment, the operation dial 10 is integrally protruded from the bearing 4b at the middle stage of the link 4 for interlocking each wind direction adjusting blade 3, and the operation portion 10a of the operation dial 10 is When the operation unit 10a is vertically operated as shown in FIG. 6 with a finger, the link 4 of the front panel 1f protrudes from the front end of the front plate 1f. The bearing 4b is rotated,
As a result, the other bearings 4b linked by the link 4a are also rotated, so that the respective wind direction adjusting blades 3 are simultaneously rotated in the same direction, so that the air blown from the air outlet 2 in the vertical direction. Adjustments can be made.

FIG. 7 shows a modified example of the link 4. The link 4a links the tip of a lever 4e projecting from the bearing 4b, so that each wind direction adjusting blade 3 is linked. Thus, the link 4 according to this modified example can be applied to both the first embodiment and the second embodiment.

[0039]

As described in detail above, according to the present invention, one of the shaft portions protruding from both ends of the wind direction adjusting blade is inserted into a mounting hole opened in the side plate of the case, and from the outside of the case. Since the shaft portion is locked to the bearing portion of the link fitted so that the tip does not protrude into the case, parts that disturb the air flow of the air blown out from the air blowing port do not protrude into the case. Therefore, the airflow resistance can be reduced, and the blowing efficiency can be improved, and the bearing can not be seen from the air blowing port, so that the appearance can be improved.

Further, the wind direction adjusting blades and the links can be interlocked simply by locking the shaft portions of the wind direction adjusting blades to the bearing portions of the link, so that the work of assembling the wind direction adjusting blades and the link can be easily performed in a short time. .

Further, since the bearing portion and the link portion for interlocking these bearing portions are connected by a hinge, the bearing portion and the link portion can be formed integrally, so that the number of parts can be reduced and the manufacturing accompanying this can be achieved. The cost can be reduced, and if an operation dial for adjusting the wind direction is protruded from one of the bearing portions of the link, the link and the operation dial can be integrally formed, so that the number of parts can be reduced. As a result, the manufacturing cost can be reduced.

[Brief description of the drawings]

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

FIG. 2 is an exploded perspective view of the wind direction adjusting device according to the first embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a cross-sectional view of a state in which a shaft of a wind direction adjusting blade is locked to a bearing of a link.

FIG. 5 is a perspective view of a wind direction adjusting device according to a second embodiment of the present invention.

FIG. 6 is an operation explanatory view of a wind direction adjusting device according to a second embodiment of the present invention.

FIG. 7 is a perspective view showing a modification of the link.

FIG. 8 is a perspective view of a conventional wind direction device.

FIG. 9 is an exploded perspective view of a conventional wind direction adjusting device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 case 1a side plate 1b, 1c mounting hole 1d recess 1f front plate 1g long hole 2 air outlet 3 wind direction adjusting blade 3a, 3n boss 3c, 3d shaft 3e locking protrusion 4 link 4a link 4b bearing 4c hinge 4d Stop hole 4e Lever 5 Spacer 5a Mounting hole 6 Operation knob 6a Bifurcation 7 Wind direction adjusting blade 8 Link 10 Operation dial 10a Operation unit

Claims (3)

[Claims] 1. An air outlet opening in a case,
In a wind direction adjusting device in which a plurality of wind direction adjusting blades are rotatably supported and the wind direction adjusting blades are interlocked with each other by a link, one of shafts protruding from both ends of the wind direction adjusting blade is attached to a side plate of the case. Into the mounting hole opened at
The wind direction adjusting device is characterized in that the shaft portion is locked to a bearing portion of a link fitted such that a tip does not protrude into the case from the outside of the case. 2. The hinge between the bearing portion and a link portion interlocking the bearing portion.
The wind direction adjusting device as described. 3. An operation dial for adjusting a wind direction is protruded from one of the bearings of the link.
The wind direction adjusting device as described.