JPS5926179Y2 - ventilation fan - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation fan having a means for easily removing dirt on the surface of a decorative frame or the surface of ventilation blades due to oil dust, etc.

In ventilation fans, especially ventilation fans installed and used in kitchens, etc., oil that is released during cooking has traditionally been removed on the surface of the ventilation blades that are rotated by a motor or on the surface of the decorative frame that surrounds these ventilation blades. There is a problem in that so-called oil dust, such as dust contained in deep air or smoke, adheres to the air and contaminates it, and cleaning it becomes a great hassle.

Therefore, in recent years, it has been considered to cover the surface of the decorative frame with a removable paint film made of, for example, synthetic resin.
According to this, the surface of the decorative frame is not soiled only by the coating, and the stain can be easily removed by peeling off the coating from the surface of the decorative frame.
This can save the trouble of cleaning and be very convenient in that respect, but when the film is peeled off, it is difficult to do so, which confuses the user, slows down the work, and causes dirt and grime. There was also a problem that it could not be removed cleanly.

This invention was made in view of the above-mentioned circumstances,
Therefore, the object is to provide a ventilation fan that can remove the coating easily and reliably, and can also remove dirt more efficiently and neatly.

An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 1, 1 is an outer frame, 2 is a motor mounting leg installed vertically inside the outer frame 1, and A motor 3 is attached to the mounting leg 2, and a ventilation blade 4 is attached to the rotating shaft (not shown) of the motor 3.

Therefore, the ventilation vanes 4 are rotationally driven by the motor 3, and the rotation thereof causes forced ventilation from the indoor side at the front of the outer frame 1 to the outdoor side at the rear for ventilation.

In addition, 5 is a shutter pivotally installed at the rear opening of the outer frame 1 to open and close it, 6 is a connecting lever connected to the shutter 5, and 7 is a shutter for opening and closing the shutter 5 via the connecting lever 6. This is a switch mechanism attached to the lower side of the front opening of the outer frame 1 to control power supply and disconnection to the motor 3.

Furthermore, 8 is a decorative frame made of synthetic resin, for example, which is removably attached to the front opening of the outer frame 1, and has a bell mouth 9 which is an intake port that also serves as a so-called oil dust receptacle.
The ventilation blades 4 are surrounded by the ventilation blades 4.

Here, as shown in FIG. 2, 10 extends from the surface of the decorative frame 8, particularly at four points on the inner circumferential edge of the bell mouth 9 portion to four corners on the outer circumferential edge of the front surface, respectively. These are radially extending convex stripes, and more specifically, they are sharply formed higher than the surface of the decorative frame 8, as shown in FIG. 3, one of which is representatively shown.

In addition, numeral 11 is a concave strip that is formed parallel to the convex strip 10 on each side of the surface of the decorative frame 8 adjacent to the convex strip 10, and is formed lower than the surface of the decorative frame 8. .

Reference numeral 12 denotes a coating that covers the entire surface of the decorative frame 8 except for the back surface, and is made of, for example, a vinyl chloride-based synthetic resin, which is appropriately diluted and placed in a spray can 13 shown in FIG. The paint is sprayed from the spray can 13 onto the surface of the decorative frame 8, and the surface of the decorative frame 8 is coated in a removable manner.

In this case, especially in this embodiment, a notch 15 is formed in the packaging box in which the entire ventilation fan is packaged, or in another appropriate member 14 that is housed together with the entire ventilation fan in this packaging box. The above-mentioned spraying after wrapping is sometimes carried out by hooking the decorative frame 8 on the cut-and-raised piece 16 formed by the notch 15 and holding the decorative frame 8 against the larger packaging lid box or other appropriate member 14. This prevents excess coating paint from scattering to keep floors, walls, etc. clean, and allows the coating paint inside to be used effectively to the end without leaving the spray can 13 lying.

Now, as a result of the above, the coating 12 is stretched over the entire surface of the decorative frame 8 without loosening and has a substantially uniform thickness over the entire surface, but there are only a few areas corresponding to the above-mentioned convex stripes 10. In this case, the convex portion 10 is sharp, so that the thickness is thinned in a line shape from the back side, and conversely, in the area corresponding to the concave portion 11, a bead is formed on the entire back side where the concave portion 11 is filled. It is thickened in a shape.

Therefore, when trying to peel off the coating 12, assuming that the coating 12 has become properly soiled instead of the surface of the decorative frame 8, for example, the bell mouth 9 of the decorative frame 8 removed from the outer frame 1 is removed.
When the coating 12 is peeled off from the position between the protruding stripes 10 and 10 on the inner peripheral end portion, the peeled part quickly becomes the protruding strip 1.
At this point, the coating 12 in this area is thinned in a line shape as described above, so there is no room for stretching and it is cut off along the thin line.

Therefore, after that, the coating 12 is peeled off from the position between the other protruding stripes 10.10 in the same manner as described above, and when the protruding stripe 10.10 is reached, the coating 12 is also cut off along this thin line. .

In this way, the coating 12 can be removed one after another in a very skillful and easy manner.

Furthermore, when the coating 12 is peeled off as described above, the separated edge of the coating 12 is a bead-shaped thick portion formed by the four-striped portions 11 described above, and in short, has a reinforced form compared to other parts. Therefore, the coating 12 can be peeled off more reliably and cleanly by aligning only the above-mentioned convex stripes 10 without changing the part to be cut on the way. Therefore, the coating 12 can be removed even in pieces. Not only does it leave no residue, it also cleans even more cleanly without leaving any dirt behind, and of course it removes the remaining film 12.
It also frees you from the trouble of having to remove the remaining dirt one by one.

Note that the coating 12 covers not only the surface of the decorative frame 8 described above, but also the surface of the ventilation blade 4, and if there is any other part where dirt easily adheres, it is covered with the coating 12. Therefore, the protruding stripes 10 and the concave stripes 11 may be formed not only on the surface of the decorative frame 8 but also on the surface of the ventilation blade 4 where dirt is likely to adhere.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, but may be implemented by appropriately changing, for example, the coating means, etc., within the scope of the invention.

As explained above, the present invention has a ventilation vane that rotates to force ventilation between indoors and outdoors, and a decorative frame that surrounds this ventilation vane. In a ventilation fan in which areas where dirt easily adheres are covered with a removable paint film, sharp protrusions are formed in the areas where dirt easily adheres to thin the coating from the back side, and the protrusions are It is characterized by forming grooves that thicken the coating adjacent to the parts, and this allows the coating to be removed easily and reliably, thereby further reducing dirt. It is possible to provide a ventilation fan that is not only capable of removing dust efficiently and cleanly, but also suitable for practical use.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention. Figure 1 is a longitudinal side view of the entire ventilation fan, and Figure 2 is a perspective view of the decorative frame and the coating that covers the surface thereof. , Fig. 3 shows III-II of Fig. 2.
FIG. 4 is an enlarged sectional view of a main part taken along line I, and a vertical sectional side view of parts related to coating formation of the decorative frame. In the figure, 4 is a ventilation blade, 8 is a decorative frame, 10 is a convex part, 11
12 is a groove, and 12 is a coating.

Claims (1)

[Scope of utility model registration request] It has a ventilation blade that rotates to force ventilation between indoors and outdoors, and has a decorative frame that surrounds the ventilation blade, and the surface of the decorative frame or the surface of the ventilation blade, etc., where dirt is easily attached, is coated with a removable coating. In the case where the coating is covered with a film, sharp protrusions are formed in areas where dirt tends to adhere, and the coating is thinned from the back side thereof, and the coating is thickened adjacent to the protrusions. A ventilation fan characterized by forming grooves that become fleshy.