JP3210971B2 - Elastic locking claw of air conditioning case body for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic locking claw of an air conditioning case when a vehicle air conditioner is mounted on an instrument panel of an automobile.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 7 and 8, an elastic locking piece 12 having a U-shaped cut groove 11 is formed on the upper surface of a vehicle air-conditioning case body 10, and a locking claw 13 is projected from a front end thereof. Air conditioner A is attached to instrument panel 14 of vehicle body.
5, the locking claw 13 of the elastic locking piece 12 is pressed downward by the locking protrusion 16, and when the locking protrusion 16 is exceeded, the elastic claw 13 is restored to its original state by its own elasticity. Is locked and fixed to the locking projection 16. 17 is a shutter valve, 18 is a horizontal louver, and 19 is a vertical louver.

[0003]

In the above prior art, there is a problem that air blows out from the U-shaped cut groove 11 on the outer periphery of the elastic locking piece 12 and a whistling sound is generated. Therefore, as shown in FIGS. 9 and 10, it has been considered to form a raised portion 21 along the lower edge of the distal end of the elastic locking piece 20 to prevent the generation of abnormal noise. However, there is a problem that the generation of abnormal noise cannot be prevented, and the rectifying effect of the blown air is reduced.

[0004]

The present invention SUMMARY OF] is intended to solve the above problems, a U-shaped boundary portion of the elastic locking piece is a thin section, of the air conditioning case body to the instrument panel
Elastic locking claws lock instrument panel when inserted
Pressed inward by the protrusion, the thin part is cut into a U-shape.
The U-shaped slit is separated and the thin portion is locked.
When the projections go over the elastic locking claws, they return to their original elasticity.
And is closed inscribed in the periphery of the U-shaped slit .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention shown in FIGS. 1 to 6 will be described in detail. 1 is an air conditioner case body of the air conditioner,
An elastic locking claw 2 protrudes from the upper surface, and a U-shaped boundary portion of the elastic locking claw 2 forms a tapered thin portion 3. 4 is an instrument panel of a vehicle to which the air conditioner is mounted, 5 is a locking projection of the instrument panel,
Reference numeral 6 denotes a shutter valve, 7 denotes a vertical louver, 8 denotes a horizontal louver, and 9 denotes a housing.

At the time of assembling, as shown in FIG.
Is inserted into the instrument panel 4, the elastic locking claws 2 are pushed downward by the locking projections 5 of the instrument panel 4, and when further pressed, the outer periphery of the thin portion 3 is cut and separated into a U-shape as shown in FIG. Is done. Next, as shown in FIG. 6, when the locking protrusions 5 are moved over, the elastic locking claws 2 are restored to their original positions by their own elasticity and locked and fixed to the locking protrusions 5. At this time, the thin part 3
Is inscribed and closed at the periphery of the U-shaped slit.

[0007]

According to the present invention, the U-shaped boundary portion of the elastic locking piece is formed as a thin portion, and when the air-conditioning case body is inserted into the instrument panel , the elastic locking claw is attached to the instrument panel.
Is pushed inward by the locking projections of the
Is cut and separated to form a U-shaped slit , and the thin portion is
When the locking projection climbs over the elastic locking claw, its own
Recovers to its original shape with elasticity and closes the inner edge of the U-shaped slit
As shown in FIG. 9 and FIG.
Without providing a raised portion along the lower edge, generation of a whistling sound can be completely prevented, and the rectification effect of the blowout flow can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view of one embodiment of the present invention.

FIG. 2 is a front sectional view of FIG.

FIG. 3 is a top view of the elastic locking claw of FIG. 1;

FIG. 4 is an initial front sectional view in which an elastic locking claw is pushed by a locking projection when the air conditioner is set.

FIG. 5 is a front sectional view when the elastic locking claw of FIG. 4 is further pressed.

FIG. 6 is a front sectional view when the elastic locking claw of FIG. 5 is restored.

FIG. 7 is a front sectional view of a conventional first comparative example.

FIG. 8 is an explanatory diagram of a whistling sound generator of FIG. 7;

FIG. 9 is a front sectional view of a second conventional comparative example.

FIG. 10 is an explanatory diagram of a whistling sound generator of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air-conditioning case body 2 Elastic locking claw 3 Thin part 4 Instrument panel 5 Locking projection 6 Shutter valve

Claims (1)

(57) [Claims] When the air-conditioning case is inserted into an instrument panel, the U-shaped boundary of the elastic locking piece is made thin.
The elastic locking claw is attached to the locking projection of the instrument panel.
Pressed more inward, the thin part is cut and separated into a U-shape
A U-shaped slit is formed, and the thin portion has the locking protrusion.
When it gets over the elastic locking claw, it returns to its original shape due to its own elasticity
And an elastic locking claw of the vehicle air-conditioning case body which is inscribed and closed at the periphery of the U-shaped slit .