JPS6124432Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a defroster nozzle for automobiles. Usually, at the bottom of the front window of a car, there is a
A defroster is installed to remove dew droplets or frost due to the difference in temperature between the inside and outside of the vehicle, and a defroster nozzle installed in the dash board blows warm air onto the window surface. The defroster nozzle is generally triangular in shape with an elongated air outlet and an air duct pipe connection, and is usually obtained from a plastic molding. In the past, the entire defroster nozzle was integrally molded by blow molding, but in recent years, in consideration of molding accuracy and thermal deformability, the nozzle body has been molded into two upper and lower side plates. It began to be divided into two parts, each of which was injection molded from a material that would not undergo thermal deformation. In order to combine these side plates, a flange part is stretched around the periphery of each side plate and each flange surface is attached with eyelets, staples, etc., or a hook part and an opening are provided in the flange part. Those having a fitting structure are known. However, the former method requires special equipment and processes, and the latter method has the disadvantage that it is easily unlatched due to vibrations of the vehicle body, etc.

This invention aims to provide a defroster nozzle that has an extremely simple structure that makes it easy to assemble both side plates together, and that does not easily disengage due to vibrations of the vehicle body. A pair of defroster nozzle side plates each having a flange are provided with a tongue piece having a neck and a jaw part protruding from one flange through a bent part, and a notch for storing the neck part of the tongue piece in the other flange. The present invention is characterized in that the notch is provided with locking step portions at both ends of the opening that engage with the jaws of the tongue piece.

The details of this invention will be explained below with reference to the attached drawings. FIG. 1 is a perspective view of a defroster nozzle showing an embodiment of this invention, and the defroster nozzle main body 10 is made of injection molded plastic such as polypropylene or polyethylene. It is obtained by molding, and has a hollow, approximately triangular shape with an elongated air outlet on the left side of the figure and an air duct pipe connection port on the right side, and has side plates 11 and 12 on the upper and lower sides.
However, the flange portion 11 stretched around their periphery
a, 12a are assembled together.

A tongue piece 2 is attached to one flange 12a of the pair of defroster nozzle side plates 11 and 12 via a bent part 21.
0 and 20 are provided protrudingly at appropriate intervals. Tongue piece 20
As shown in the figure, it is approximately T-shaped and includes a neck portion 22 and a jaw portion 23 projecting from the neck portion in a perpendicular direction. By integrally molding the tongue piece 20 along the upper edge of the side end of the flange 12a as in the embodiment, the tongue piece 20 can be bent, that is, protrude integrally with the bent portion 21 from the flange 12a.

On the other hand, the other flange 11a corresponding to the upper flange 12a is provided with notches 25, 25 at positions corresponding to the neck part 22 of the tongue piece 20, in which the neck part 22 can be accommodated. Locking steps 26 and 27 that engage with the jaws 23 of the tongue piece 20 are provided at both ends of the opening. As shown in FIGS. 4 and 5, the locking step portions 26 and 27 hold the jaws of the tongue 20 when the tongue 20 is bent from its bent portion 21 and its neck portion 22 is pushed into the notch 25. The portion 23 is configured to have a necessary and sufficient height to overcome and engage the stepped portions 26 and 27. Note that, as shown in the embodiment, the stepped portions 26, 27
It is desirable that the outer portion of the jaw portion 23 be configured with a curved surface or an inclined surface so that the jaw portion 23 can easily be climbed over.

Further, in order to accurately and easily position the side plates 11 and 12 when assembling them together, it is also preferable to provide pins 30 and corresponding holes 31 on these flanges 11a and 12a. It is also possible to form concave and convex portions that mesh with each other at appropriate locations.

Since this invention has the above configuration, as can be better understood from FIGS. 4a and 4b and the corresponding FIGS. 5a and 5b, the tongue piece 20
When the tongue 20 is bent from its bent portion 21 and its neck portion 22 is pushed into the notch 25, the jaw portion 23 of the tongue piece 20 will cross over the locking step portions 26 and 27 and engage.
Both side plates can be assembled together very easily.

In this invention, it is possible to provide not only ease in the above-mentioned assembly, but also accuracy and firmness in locking, which are much superior to conventional ones. That is, as described above, when the tongue piece 20 is engaged, the tongue piece 2
Although the jaw part 23 of 0 is engaged with the locking steps 26 and 27, in this invention, in reality,
The neck part 22 of the tongue piece is housed in the notch 25,
In addition, since this engagement is normally performed forcibly by utilizing the repulsive elasticity of plastic, the tongue piece 20 itself is fixed by the notch 25, and the jaw portion 23 is provided with the notch 25. The flange surface is also engaged with the flange surface, and the engagement will not easily come off even if any force is applied to the flange surface in the left/right, front/back, or up/down directions. In this respect, this invention has a great difference from the conventional fitting structure, and its advantages are extremely large, especially in automotive defroster nozzles that are subject to constant vibration.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of a defroster nozzle showing one embodiment of this invention, Fig. 2 is an exploded perspective view of its main parts, Fig. 3 is a side view showing the assembly part, and Fig. 4 shows the assembly. The plan view of the main part showing the attached state, and each figure in FIG. 5 are also sectional views thereof. 11, 12... Defroster nozzle side plate, 11
a, 12a... flange, 20... tongue piece, 21...
...Bending part, 22... Neck part, 23... Jaw part, 25...
...notch, 26, 27...locking stepped portion.

Claims (1)

[Scope of utility model registration request] One flange 12 of a pair of defroster nozzle side plates 11 and 12 having flanges 11a and 12a
A tongue piece 20 having a neck part 22 and a jaw part 23 is appropriately protruded through a bent part 21, and the other flange 11a is provided with a notch 25 for storing the neck part 22 of the tongue piece. Locking steps 26, 2 that engage with the jaws 23 of the tongue piece are provided at both ends of the opening.
An automobile defroster nozzle characterized in that a defroster nozzle is provided with a defroster nozzle.