JPH0448439Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an air outlet device used, for example, in automobiles.

[Prior Art] A plate-shaped damper is rotatably supported in the air passage of the air outlet, and is configured to control the amount of air supplied into the vehicle interior depending on the rotation angle of the plate-shaped damper. ing.

That is, when the damper is positioned perpendicular to the wind direction, the air passage is completely closed, and when the damper is positioned parallel to the wind direction, it is completely opened.

As a conventional damper, the plate-shaped part and the shaft part are integrally molded from resin, and an elastic material such as foamed urethane or heat-resistant rubber is provided on the outer periphery to make good contact with the wall forming the air passage. Some devices are designed to completely block the wind when the air passage is closed. However, such resin dampers lack overall rigidity, especially when the length exceeds 150 mm.
There have been cases where the deformation due to heat is large and a gap is created between the air passage and the wall forming the air passage, making it impossible to completely close the air passage.

In order to prevent deformation due to lack of rigidity, dampers made of metal plates such as iron plates are known.

[Problem that the invention aims to solve] However, when the damper is made of a metal plate as described above, metal has poor vibration absorption properties compared to resin, so when the damper is operated, the metal plate vibrates and generates abnormal noise. There were problems such as vibrations from the metal plate being transmitted to the operating knob, resulting in a poor operating feel. In particular, when a moderation mechanism is provided on the operating knob, the vibration of the metal plate increases due to the moderation, and the above-mentioned problem becomes conspicuous.

The present invention aims to solve the above-mentioned problems.

[Means for Solving the Problems] In order to achieve the above object, the air outlet device of the present invention is designed to prevent vibration of a metal plate constituting a damper rotatably supported in an air passage. Part of the damper is pressed against the wall forming the air passage.

[Function] Therefore, according to the above configuration, the vibration generated in the metal plate is transmitted to and absorbed by the wall forming the air passage, or is converted into frictional energy between the damper and the wall forming the air passage. This can be prevented by At this time, since the damper is in pressure contact with the wall forming the air passage, more vibrational energy is converted into frictional energy than if the damper were simply in contact with the wall, and the vibrations are rapidly attenuated.

[Example] Hereinafter, specific examples of the present invention will be described based on the drawings.

FIG. 1 is a side view of the air outlet device, in which an operating knob 3 is rotatably supported on a retainer (wall forming an air passage) 1 around a shaft portion 32. As shown in FIG. The operation knob 3 includes an operation section 34 and an arm 3.
6, and a pin (not shown) provided on the arm 36 engages with a long hole 42 of the link 4, which is supported by the retainer 1 so as to be rotatable about a shaft portion 44.
Therefore, when the operating knob 3 is rotated, the link 4 is rotated about the shaft portion 44.

As shown in FIG. 2, a barrel 2 and a damper 6 are provided in the air passage of the air outlet device.

The barrel 2 is provided to control the blowing direction of air, and although not shown, normally includes a frame body that rotates vertically with respect to the retainer 1, and a frame body that can rotate horizontally within the frame body. It consists of a plurality of blades provided.

The damper 6 is made up of an iron plate 62, a shaft portion 64, and a seal member 66. The shaft portion 64 is molded from resin, and is fixed to the iron plate 62 by a predetermined attachment method, although it will not be described in detail. Also,
A sealing member 66 made of urethane foam or the like is attached to the iron plate 62 with adhesive, double-sided tape, or the like. The damper 6 is rotatably supported by the retainer 1 around a shaft portion 64.

The shaft portion 64 of the damper 6 is connected to the shaft portion 4 of the link 4.
Therefore, by rotating the operating knob 3, the damper 6 is rotated via the link 4. For example, Figure 1, Figure 2
When the operation knob 3 is rotated counterclockwise from the state shown in the figure, the link 4 and the damper 6 are rotated clockwise, and the ends 68, 68 of the damper 6 are attached to the protrusion 12 and step 14 of the retainer 1. At the moment of contact, the air passage will be completely closed.

A feature of this embodiment is that, as shown in FIGS. 2 and 3, pressure contact portions 9 formed by bending projecting pieces are provided at both ends of the iron plate 62 of the damper 6. The distance between the pressure contact parts 9, 9 is the same as that of the retainer 1.
A sealing member 66', which has approximately the same length as the width of the air passage formed by the retainer 1 and is wrapped around the outer surface of the pressure contact part 9, is interposed between the pressure contact part 9 and the retainer 1 and is compressed. By this, the pressure contact part 9
is pressed against the retainer 1 via the seal member 66', and vibration of the iron plate 62 is prevented.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and the pressure contact portions 9 are not limited to two locations, but may be provided at one location, or may be provided at three or more locations.

Further, although the pressure contact portion 9 is formed by bending the iron plate 62, the pressure contact portion may be provided as a separate member.

Further, although the press contact portion 9 was press contact with the retainer 1 via the seal member 66', it is directly connected to the retainer 1.
It may be made to be in pressure contact with. However, in order to prevent the generation of sliding noise, it is desirable to interpose a separate member.

[Effects of the Invention] As is clear from the above description, according to the present invention, it is possible to prevent noise caused by vibration of the metal plate constituting the damper and deterioration of the operational feeling.

Furthermore, since the damper is brought into pressure contact with the wall forming the air passage, it is possible to assemble the damper without play.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a sectional side view, and FIG. 3 is a partially omitted perspective view of the main part. 1... Retainer (wall forming an air passage), 6
...Damper, 62...Iron plate (metal plate), 64...
Shaft portion, 66, 66'... Seal member, 9... Pressure contact portion.

Claims (1)

[Claims for Utility Model Registration] In an air outlet device having an air volume adjustment mechanism in which a damper having a metal plate is rotatably supported in an air passage, the damper is configured to prevent vibration of the metal plate. An air outlet device characterized in that a part of the air outlet is in pressure contact with a wall forming the air passage.