JP2581369Y2 - Air damper structure of register - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air damper structure of a register for air-conditioning an instrument panel or the like in a vehicle such as a passenger car.

[0002]

2. Description of the Related Art FIG. 4 shows an example of the configuration of a conventional register. Reference numeral 1 denotes a retainer, 2 denotes a barrel mounted on the opening at the tip of the retainer 1, and 3 denotes a rotatable interior of the retainer 1 (arrow A).
) Supported by the air damper. The air damper 3 is formed so as to match the cross-sectional shape of the retainer 1. 5 and 6, the air damper 3
A groove 4 is formed around the groove, and a sealing member 5 is mounted in the groove 4 so as to contact the inner surface of the retainer 1. Air flow in the retainer 1 (FIG. 1, arrow B)
) Flows out through the barrel 2, but flows through the air damper 3.
The air flow in the retainer 1 is controlled by appropriately rotating.

[0003]

However, in the conventional air damper 3, when the retainer 1 is fully closed by its rotation, there is a problem that the seal member 5 which comes into contact with the inner surface of the retainer 1 comes off from the groove 4. there were. Conventionally, in order to prevent such a problem, the sealing material 5 is impregnated with silicon or the like to reduce frictional resistance, thereby preventing the sealing material 5 from coming off the groove 4.

Further, when the air damper 3 is used at a position in front of the fully closed state, there is a problem that a whistling sound is generated due to wind pressure on the edge 2a (see FIG. 4) of the barrel 2. Therefore, in order to prevent such a whistling sound, FIG.
As shown in (1), the air flow is changed so that a whistling sound is not generated by attaching a urethane material 6 to an appropriate position on the inner surface of the retainer 1 or forming a resin material in a bank shape. .

The present invention has been made in view of the above circumstances, and has as its object to provide an air damper structure of a register which can reliably prevent both the detachment of a sealing material and the generation of a whistling sound.

[0006]

An air damper structure of a register according to the present invention includes an air damper supported so as to open and close an air passage of a retainer, and an annular sealing member mounted along the outer periphery of the air damper. A plurality of ribs are arranged in line on the upstream surface of the air damper in the air flow direction, and the sealing material is mounted in an offset state with respect to the air damper through a groove formed in the air damper. It is intended to be.

[0007] In particular, there is provided a projecting piece formed by projecting a part of the sealing material inward, and this projecting piece is engaged with the air damper.

[0008]

According to this invention, the air flow in the retainer can be appropriately controlled by adjusting the rotation angle of the air damper provided in the retainer. In this case, the rib provided on the air damper is provided with a rectifying plate. Act as That is, when the air flow passes through the air damper, the plurality of ribs make the air pressure constant and uniform. Thus, since the airflow is rectified after passing through the air damper, no whistling sound is generated at the edge of the barrel. In addition, since the sealing material is securely fixed to the air damper via the protruding piece, it can be prevented from coming off.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an air damper structure for a register according to the present invention; The air damper 3 is supported so as to open and close the air passage of the retainer 1 (FIG. 4).
A plurality of ribs 7 are arranged on the upper side along the air flow direction. The sealing member 5 is attached to the air damper 3 in an offset state via the groove 4 formed in the air damper 3 .

The ribs 7 project from the surface 3a of the air damper 3 so as to have a constant height H (see FIG. 1) from the sealing material 5, and are formed parallel to each other as shown in FIG. I have. In the illustrated example, the rib 7 is provided on the surface 3 of the air damper 3.
Although it rises from the middle position of a, the length of the rib 7 is set to an appropriate length, and may be, for example, the same width as the air damper 3 (see a two-dot chain line in FIG. 1).

The groove 4 is formed on the opposite side of the rib 7, that is, on the surface 3 b of the air damper 3, and as shown in FIG. 3, an opening 8 communicating with the groove 4 is formed. Then two places). Then, a part of the sealing material 5 projects inward through the opening 8, thereby forming a projecting piece 9.
Further, the surface 3 of the air damper 3 is provided at a position corresponding to each of the projecting pieces 9.
A pin 10 is implanted in b, and the pin 10 locks the protruding piece 9.

In the air damper structure of the register according to the present invention, especially when the air damper 3 is used at a position in front of the fully closed state, air flows of various wind pressures and directions are provided upstream of the air damper 3 as shown in FIG. B ₁ , B ₂ , B ₃ ,
Even when B ₄ ) is formed, the ribs 7 make the wind pressure and direction uniform and uniform as a whole when passing through the air damper 3. In this way, the air flow is
, And is rectified on the downstream side, so that a whistling sound does not occur even when it hits the edge 2 a of the barrel 2. Conventional measures, such as attaching a urethane material to the retainer 1 or forming a resin material in a bank shape, increase costs due to parts costs and the like, and complicate the mold splitting of a molding die. However, according to the present invention, such a problem can be solved.

Further, the sealing material 5 is provided through the protruding piece 9.
Since it is securely fixed to the air damper 3, it does not accidentally come off the air damper 3 due to frictional resistance due to contact with the inner surface of the retainer 1. Further, in the conventional method of reducing the frictional resistance by impregnating the sealing material 5 with silicon or the like,
In the assembling process, the silicon adhered to the operator's hand caused stains on the air damper 3. However, in the present invention, since such silicon is not used, the labor for cleaning stains can be saved. .

[0014]

According to the present invention, as described above, in the air damper of this type of register, it is possible to reliably prevent both the detachment of the sealing material and the generation of the whistling sound.
As a result, advantages such as reduction in product cost and improvement in productivity are obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view illustrating an air damper structure of a register according to an embodiment of the present invention;

FIG. 2 is a perspective view of an air damper according to the present invention;

FIG. 3 is a partial perspective view of the air damper shown in FIG.

FIG. 4 is a longitudinal sectional view showing a configuration example of a main part of a conventional register.

FIG. 5 is a perspective view of an air damper according to a conventional register.

FIG. 6 is a side sectional view of the air damper of FIG. 5;

FIG. 7 is a cross-sectional view of a principal part explaining the operation of the air damper of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Retainer 2 Barrel 3 Air damper 4 Groove 5 Sealing material 7 Rib 8 Opening 9 Protrusion piece 10 Pin

Claims (2)

(57) [Scope of request for utility model registration] 1. An air damper supported so as to open and close an air passage of a retainer, and an annular sealing member attached along an outer periphery of the air damper, wherein an air flow direction is provided on an upstream surface of the air damper. A plurality of ribs are arranged in a row along a line, and the seal member is mounted in an offset state with respect to the air damper through a groove formed in the air damper, Construction. 2. The device according to claim 1, further comprising a projection formed by projecting a part of the sealing material inward, wherein the projection is engaged with the air damper. Air damper structure of register.