JPS6342031Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to improvement of an automobile window defroster.

As shown in Figs. 1 and 2, an automobile defroster is provided with a horizontally long hole B on the upper surface of the instrument panel A due to the direction in which the instrument panel A is injection-molded from a synthetic resin. A wide nozzle D with an elongated air outlet C made separately from the instrument panel A is connected to the inside of the instrument panel A using screws, etc., and an air hose E is connected to this nozzle D.
are connected. In this way, manufacturing the instrument panel A and the nozzle D separately results in troublesome manufacturing and high costs, complicates parts management, and requires more effort for assembly, resulting in higher costs.

In view of these points, this invention has been improved so that it can be manufactured at a low cost, and an embodiment of the invention shown in FIGS. 3 and 4 will be described below.

The instrument panel 1 is made of synthetic resin, and has an upper flange 1a and a lower flange 1 at both upper and lower end edges, respectively, which protrude diagonally forward and downward.
b is formed, and the direction of the cutting die when molding is diagonally forward and downward. Incidentally, a horizontally long diagonal groove 2 is integrally formed in the front part of the upper surface of the instrument panel 1 in accordance with the direction of mold removal. That is, the lower side 2b of the diagonal groove 2 is connected to the upper flange 1.
The diagonal groove 2 is formed so that the upper side 2a of the diagonal groove 2 is approximately parallel to the lower flange 1b. Then, a hole 3 is bored deep in the lower surface of this oblique groove 2, and an air duct 4 is connected to the hole 3. Since the air duct 4 is made of an elastic material, it can be attached by simply fitting it into the hole 3. Then, an air hose 5 is inserted and connected to the air duct 4. Further, a guide plate 6 is bonded to the rear side of the entrance of the oblique groove 2. 7 is a front window, and 8 is a vehicle body.

The effect will be explained.

Air sent from an air hose 5 passes through an air duct 4 and enters the diagonal groove 2, is spread wide by the diagonal groove 2, and is blown onto the front window 7, thereby preventing the front window 7 from fogging up. At this time, if the guide plate 6 is provided, the inside of the diagonal groove 2 becomes a pressure air reservoir, and the air can be uniformly and widely diffused, and the blowing direction can also be adjusted. Since the diagonal grooves 2 are aligned with the cutting direction of the instrument panel 1, it can be molded integrally with the instrument panel 1, eliminating the need for a nozzle and reducing costs. In addition, by making the air duct 4 from a soft material such as an elastic body,
It can be fitted into a hole 3 provided in the diagonal groove 2, and no screws or the like are required for attachment/detachment, and the effort of tightening can be saved.

As explained above, this invention has a diagonal groove in the front of the upper surface of the instrument panel, in which the upper flange of the instrument panel and the lower edge of the diagonal groove are approximately parallel, and the lower flange and the upper edge of the diagonal groove are approximately parallel. The upper and lower molds for molding the instrument panel were formed integrally, and a hole was drilled deep inside the lower surface of the diagonal groove to connect the air duct to the hole. It can be opened in a direction parallel to the flange, and there is no need for a complicated slide mold, so it can be molded at low cost. Then, the blown air can be spread wide by the diagonal grooves and blown onto the front window. Furthermore, the air duct can also be inserted by fitting into the hole of the oblique groove, making assembly easier and making it possible to significantly reduce costs as a whole. By providing a guide plate at the entrance of the oblique groove, it is possible to uniformly blow out the air over a wide width, and also to adjust the blowing direction, which is more convenient.

[Brief explanation of the drawing]

1 and 2 show a conventional example, FIG. 1 is a longitudinal sectional view, FIG. 2 is a perspective view of a nozzle, FIGS. 3 and 4 show an embodiment of the present invention, and FIG. is a longitudinal sectional view, and FIG. 4 is a plan view. 1... Instrument panel, 2... Diagonal groove, 3... Hole, 4...
air duct.

Claims (1)

[Scope of utility model registration request] In an automobile window defroster in which a horizontally long diagonal groove is integrally formed on the front upper surface of an instrument panel made of synthetic resin, an upper flange and a lower flange that protrude diagonally downward and forward are provided at both upper and lower edges of the instrument panel. Further, the upper flange and the lower side of the diagonal groove, and the lower flange and the upper side of the diagonal groove are respectively substantially parallel to each other, and a hole is bored deep in the lower surface of the diagonal groove, and an air duct is connected to the hole. Wind defroster for automobiles.