JPS5818600Y2 - ventilation fan - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved ventilation fan that can easily remove dirt on the surface of a decorative frame due to oil dust, etc.

In ventilation fans, especially ventilation fans installed and used in kitchens, etc., the surface of the decorative frame that surrounds the ventilation blades that are driven by a motor has traditionally been used to prevent oil stains from cooking, and especially smoke in the air. There is a problem in that they are contaminated by so-called oil dust, such as dust contained in them, and cleaning them is a major hassle.

Therefore, in recent years, it has been considered to cover the surface of the decorative frame with a removable synthetic resin film, for example. According to this method, the surface of the decorative frame is not soiled, only the film is stained, and the dirt is also covered with a removable synthetic resin film. Since the coating can be easily removed by peeling it off from the surface of the decorative frame, it can save the effort of cleaning and be very convenient. This confuses the user, slows down the work, and makes it difficult to cleanly remove dirt.

This is simply because the decorative frame has a three-dimensional shape with a surrounding wall that is not a surface of the front wall. This is because the surrounding surfaces, for example, must be transferred from the top, bottom, left and right sides to the front surface, or from the front surface to the above-mentioned surrounding surfaces. When applying a new coating, work must be done not only from the front but also from various directions around the area.
Therefore, it has the disadvantage that not only is it not easy to peel off the applied film, but also it is not easy to apply the film.

This invention was made in view of the above-mentioned circumstances,
Therefore, the object is to provide an extremely practical ventilation fan that allows the coating to be removed and applied with great ease.

An embodiment of the present invention will be described below with reference to the drawings.

First of all, in Fig. 1, 1 is an outer frame containing a motor, shutter, etc. (not shown), and 2 is a ventilation blade that is rotationally driven by the motor. Ventilation is provided through forced ventilation.

3 is a decorative frame made of synthetic resin, for example, and has a bell mouth 4, which is an intake port that also serves as an oil dust receptacle, approximately in the center of the front wall 3a.
The bell mouth 4 surrounds the ventilation blades 2.

The decorative frame 3 also has surrounding walls 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b, 3b.
C, 3d, and 3e, and in short, the external shape has a three-dimensional shape that can be regarded as, for example, a rectangular box shape.

Here, FIG. 2 shows the state of the decorative frame 3 before assembly, and as is clear from FIG. 2, the peripheral walls 3b, 3C, 3d, and 3e of the decorative frame 3 are initially It is formed flush with the front wall 3a, and in this state, the entire surface of the decorative frame 3, including the bell mouth 4, is coated with a coating 5 made of, for example, vinyl chloride-based synthetic resin. is applied in a removable manner by an appropriate film forming means such as spraying or brushing (see Fig. 3).

As shown in FIG. 4, 6 is the front wall 3 of the decorative frame 3.
A self-hinge part is formed at the boundary between a and the surrounding walls 3b, 3C and 3d, 3e by making the wall thickness here thinner from the back side than other parts, 7 is each both ends of the surrounding walls 3d, 3e Each tongue piece 7 has a self-hinge part 8 similar to the self-hinge part 6 also formed at the boundary with the surrounding walls 3d and 3e.

Further, numeral 9 denotes holes formed at two locations on each of the tongue pieces 7, while numeral 10 denotes headed protrusions formed at both ends of the surrounding walls 3b and 3C, also at these two locations.

Therefore, now, raise the surrounding walls 3 d and 3 e from the self-hinge part 6 to the back side, fold the tongue piece 7 inward from the self-hinge part 8, and then raise the surrounding walls 3 b and 3 C from the self-hinge part 6 to the back side. When the protrusions 10 are inserted into the holes 9, the protrusions 10 and the holes 9 are engaged as shown in FIG. 5, and the decorative frame 3 is assembled as shown in FIG. 6. The assembled decorative frame 3 is removably attached to the outer frame 1 as shown in FIG.

Therefore, even in the above configuration, if the ventilation operation by rotating the ventilation blades 2 is repeated many times, the coating 5 covering the surface of the decorative frame 3 will replace the surface of the decorative frame 3 and become oily. If the dirty coating 5 is to be peeled off, the decorative frame 3 is first removed from the outer frame 1, and then the protrusions 10 of the removed decorative frame 3 are removed. The surrounding walls 3b, 3C and 3 are disengaged from the holes 9 and
d.

3e are all unfolded flush with the front wall 3a as shown in FIG.

In this way, the surrounding walls 3b, 3C and 3 of the decorative frame 3
d, 3e and the front wall 3a are made into one plane, and the coating 5 can be peeled off extremely easily from the decorative frame 3 made flat in this manner without the trouble of changing the direction as in the conventional case. This makes it easier to work and allows for clean removal of dirt.

Then, when a new coating is applied to the surface of the decorative frame 3 after the coating 5 has been peeled off in this manner, the surrounding walls 3b, 3C, 3d, and 3e are expanded to form a single plane as described above. A new coating can be applied to the decorative frame 3 very easily in only one direction from the front, without requiring work from various directions as in the conventional case, so the work is very efficient in this case as well. It is something that can be done.

The decorative frame 3 whose surface has been covered with a new film is then assembled in the same manner as described above, restored to a state in which the surrounding walls 3b, 3C, 3d, and 3e are not flush with the front wall 3a, and then removed again. It may be used by attaching it to frame 1.

However, the protrusions 10, holes 9, and other means for assembling the restoration may be performed by means other than those described above.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, but may be implemented with appropriate modifications within the scope of the gist.

As explained above, the present invention surrounds the ventilation vanes that rotate for forced ventilation between indoors and outdoors with a three-dimensional decorative frame that has a surrounding wall that is not a surface of the front wall. In the ventilation fan in which a film covering the decorative frame is removably applied to the surface of the decorative frame, the peripheral wall of the decorative frame is expanded to a state flush with the front wall and the peripheral wall is brought into the non-surface state. The ventilation fan is characterized by being formed so that it can be restored to the desired shape, and thus provides an excellent practical effect in that the coating can be removed and attached extremely easily. It is.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is an external perspective view of the entire ventilation fan, Fig. 2 is a front perspective view of the decorative frame in the unfolded state, and Fig. 3 is the decorative frame and it. FIG. 4 is a perspective view of the back side of the decorative frame in the unfolded state; FIG. 5 is an enlarged sectional view of the hole and the protrusion that engages with the hole; FIG. 6 is the assembled state. It is a back side perspective view of the decorative frame in a state. In the figure, 2 is a ventilation blade, 3 is a decorative frame, 3a is a front wall, 3b
, 3C, 3d, and 3e are peripheral walls, and 5 is a coating.

Claims (1)

[Scope of utility model registration request] A ventilation blade that rotates to provide forced ventilation between indoors and outdoors is surrounded by a three-dimensional decorative frame that has a peripheral wall that is separate from the front wall around the front wall, and is covered on the surface of the decorative frame. In the case where the coating is removably applied, the peripheral wall of the decorative frame is formed so that it can be expanded to a state flush with the front wall and restored to the non-surface state. Features a ventilation fan.