JPS6325470Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation fan, particularly a filter cover for a ventilation fan installed in a cooking area.

Ventilation fans installed not only in general homes but also in cooking areas such as restaurants and cafeterias allow a lot of smoke and oil to pass through them, which can cause the blades and the inner surface of the frame to become extremely dirty at an early stage, which not only reduces ventilation effectiveness. This is extremely unsanitary and requires time and effort to clean. For this reason, attempts have recently been made to attach a cover covered with a filter made of nonwoven fabric or the like to the indoor side of an already installed ventilation fan.

However, although the existing ventilation fans do not have much difference in the central ventilation hole or size, there are many different frame designs, so it is necessary to create a filter cover that can be used commonly for ventilation fans with different designs. Therefore, if it is created to suit each model, it is inevitable that the cost will be high. In addition, the filter can be replaced during use,
Since it requires work such as cleaning the filter cover, it has not been widely used in reality.

Taking the above-mentioned points into account, this invention is essentially a disposable type, and can be attached to any model of ventilation fan very easily by pressing it with your fingertips, regardless of the unevenness of the mounting surface due to different models of ventilation fans. To provide a lightweight and inexpensive filter cover for a ventilation fan made of an aluminum sheet that can be used as a ventilation fan.

Below, the drawings showing the embodiments of the present invention will be described. Reference numeral 1 indicates a filter cover main body, and the cover main body 1 is formed by press-molding a single aluminum sheet, and the center part thereof is approximately in the shape of a truncated pyramid. It is bulged out and the entire surface is open. In this central open part, a side face of the open part of the side wall part 2 of the bulging part of the cover main body 1 is bent inward to form a holding surface 4 to which the outer peripheral part of the filter 3 is attached. The side is bent outward to form a narrow peripheral edge 7 over the entire circumference of the peripheral wall 2, and as shown in FIGS. 3 and 4, this peripheral edge 7 is connected to the front surface of the frame of the ventilation fan 5. It is designed to come into contact with and be fixed on the portion 6. Reference numeral 8 denotes a reinforcing strip that crosses the central opening on the front side, and when the portion corresponding to the opening is punched out during molding of the cover main body 1, only the portion corresponding to the strip 8 remains. Therefore, the strip 8
is continuous with the filter holding surface 4 described above.
The filter 3 attached to the central opening of the filter cover main body 1 may be, for example, a conventionally known filter non-woven fabric, and the filter 3 may be expanded and fixed on the holding surface 4 by an elastic wire 9, or Alternatively, it may be fixed to the holding surface 4 with an adhesive.

Further, the above-mentioned fastening peripheral edge 7 has a width of about 2 to 4 cm, and may have an inclined surface, an arc surface, etc. on the front surface part 6 of the frame of the ventilation fan 5, which is the main fastening surface of the cover. By pressing this peripheral edge 7 by hand along the attachment surface, it can be attached to the front surface of the frame of the ventilation fan using an appropriate mounting tape without affecting the side wall 2 of the cover main body 1. It's summery.
Further, since the fixing peripheral edge 7 has a slight width, even if the external shape of the ventilation fan is irregular in size, it can be adapted to any surface by pressing the peripheral edge 7. Further, it is preferable for strength to make the above-mentioned side wall portion 2 a vertically corrugated surface when the cover main body 1 is press-molded, and it is good for appearance if each corner portion is formed into a flattened shape. Furthermore, if cuts 7' are provided at predetermined intervals on the peripheral edge 7 of the cover main body 1, it will be convenient to easily follow the frame front surface 6 of the ventilation fan 5.

The above filter cover main body 1 in the present invention
3, a double-sided adhesive tape is attached to the front surface 6 of the frame portion of the ventilation fan 5 between the surface 6 and the periphery 7 of the cover main body 1.
Although it is one usage mode to use it by intervening and fixing it at four places, if the adhesive tape for fixing is attached continuously or discontinuously to the back side of the periphery 7 of the cover main body 1, the mounting surface can be fixed. It becomes easier to attach to.

As described above, the present invention includes a filter cover body 1 having a substantially trapezoidal bulge formed by press-forming a single aluminum sheet, and a filter cover body 1 attached to the central opening of the filter cover body 1. 3, the central open part has a holding surface 4 for attaching the outer peripheral part of a filter 3 formed by bending the open part side end of the side wall part 2 of the cover main body 1 inward, and the open part. Furthermore, the ventilation fan side end of the side wall 2 is bent outward to form a peripheral edge 7 that can abut against the frame front surface 6 of the ventilation fan 5. Ventilation fan 5
It can be fixed on the front surface 6 of the frame without bending it to the side surface of the frame,
Since the entire body is made by press molding a single aluminum sheet, it is lightweight and inexpensive. Since the parts are fixed by pasting or the like, the filter 3 can be easily attached to the cover main body 1, and since the size of the filter 3 can be the same as the size of the open part on the surface side of the cover main body 1, the filter material can be fixed. It is extremely economical as the amount of water used is kept to a minimum. Furthermore, the peripheral edge 7 formed on the outer periphery of the side wall portion 2 on the side of the ventilation fan is made of a single aluminum sheet and has a width suitable for mounting to abut against the front surface portion 6 of the frame portion of the ventilation fan 5. Therefore, by pressing the peripheral edge 7 with a fingertip, it is possible to accurately and easily attach the ventilation fan 5 along any curved surface, no matter what kind of curved surface the surface portion 6 of the ventilation fan 5 has. It can be done smoothly. Therefore, the cover main body 1 of the present invention can be applied to a wide variety of ventilation fans, and the presence of the reinforcing strips 8 can prevent the filter 3 from being bent. ventilation fan 5
By maintaining an appropriate distance between the blades 5' and the three surfaces of the filter, suction can be performed smoothly. Furthermore, since it is inexpensive, if it becomes dirty, it can be replaced with a new one, and although it has a simple structure, it has a remarkable practical effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and
Figure 1 is a perspective view, Figure 2 is a partially sectional side view, and Figure 3 is a side view.
This figure and FIG. 4 are a perspective view and a side sectional view showing the attached state. DESCRIPTION OF SYMBOLS 1... Cover main body, 2... Side wall part, 3... Filter, 4... Holding surface, 5... Ventilation fan, 6... Frame front surface part, 7... Fixing periphery, 8... Reinforcement strips .

Claims (1)

[Scope of utility model registration request] A ventilation fan cover consisting of a filter cover main body 1 having a substantially trapezoidal bulge formed by press-molding a single aluminum sheet, and a filter 3 attached to the central opening of the cover main body 1. The central open part has a holding surface 4 to which the outer peripheral part of the filter 3 is attached, which is formed by bending the open part side end of the side wall part 2 of the filter cover main body 1 inward, and a reinforcing strip that crosses the open part. 8, and a peripheral edge 7 in which the end of the side wall 2 on the side of the ventilation fan is bent outward and can come into contact with the front surface 6 of the frame of the ventilation fan 5.
A filter cover for a ventilation fan, characterized in that the peripheral edge 7 can be fixed on the front surface 6 of the frame without bending the peripheral edge 7 to the side surface of the ventilation fan 5.