JP2568751B2 - Ventilation fan - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan in which a blower for exhausting indoor air to the outdoors at home or the like and an outdoor hood are integrated.

2. Description of the Related Art Conventionally, this type of ventilation fan has a configuration as shown in FIGS.

In FIG. 5, a blower 23 is incorporated in a hood 22 attached to a mounting hole 21 opened in a wall 20 of a building, and room air is exhausted to the outside through an opening 25 on the lower surface of the hood 22 through a grill 24. A drainage frame for preventing rainwater or the like from entering through a gap between the mounting hole 21 of the building wall 20 and the hood 22.
26 were provided. In the figure, B indicates the thickness of the wall 20 of the building, and A indicates the protrusion dimension from the wall surface of the hood 22.

SUMMARY OF THE INVENTION In such a conventional configuration, since the depth of the hood 22 is constant, the protrusion A of the hood 22 to the outdoor side differs depending on the thickness B of the wall 20 of the building. In other words, the condition for ventilation is that the opening on the lower surface of the hood 22 is exposed to the outside. However, the protrusion of the hood 22 from the outer wall of the building by a predetermined dimension or more impairs the appearance of the outer wall of the building. However, the depth dimension of the hood is generally adjusted to the largest (thicker) wall thickness B of the building, and if this product is mounted on a building with a thin wall, the hood 22 will protrude greatly. However, there is a problem that the appearance of the outer wall of the building is significantly impaired.

SUMMARY OF THE INVENTION It is a first object of the present invention to solve the above-described problems, and to provide a ventilation fan which does not impair the aesthetic appearance of a building with a minimum required amount of hood even if the thickness of the building wall is different. I do. A second object is to improve the workability of the ventilation fan without impairing the appearance of the outer wall of the building.

Means for Solving the Problems In order to achieve the first object, the ventilation fan of the present invention is configured such that the first means has a front surface and a rear lower surface opened in a shape provided in a mounting frame opened to a wall portion, A hood having a built-in air blower, a mounting frame provided on the hood so as to be slidable back and forth, a connecting device for connecting and fixing the mounting frame and the hood, and a drain frame provided on an outdoor wall surface around the hood. The hood and the mounting frame are configured to overlap in the mounting frame.

A second means for achieving the second object is a hood having a built-in blower, which has a front surface and a rear lower surface opened in a mounting hole opened in a wall portion, and a hood having a built-in blower, which is slidable back and forth. A mounting frame provided, and a drain frame provided on the outer periphery of the hood, wherein the drain frame is integrally formed at a substantially intermediate position of the hood between an opening at a lower rear surface of the hood and a superimposed portion overlapping the mounting frame. It is configured to be provided in a special manner.

According to the ventilation fan of the present invention, the mounting frame and the hood are separated parts by the configuration of the first means, and the hood slides in the mounting frame, so that the hood projects from the outer wall of the building at an appropriate position. Can be adjusted and connected to each other, so that the difference in the thickness of the wall of the building from the outer wall of the hood can be minimized, and the appearance of the outer wall of the building is not spoiled.

According to the configuration of the second means, by integrating the drainage frame and the hood, the hood is fixed by attaching the flange portion of the drainage frame to the outer wall of the building, and there is no need to connect the hood and the mounting frame.

In addition, since the drainage frame and the hood are integrated, there is no need to apply a caulking agent to the boundary between the drainage frame and the hood, and the workability can be improved.

Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

As shown in the drawing, a blower device 3 having a front surface and a rear lower surface opened in a shape to be fitted into a mounting hole 2 opened in a wall portion 1, and a discharge port having a shape matching the opening of the rear lower surface therein.
A hood 4 with a built-in
A drain frame 5 having a flange attached to the outdoor wall surface of the wall portion 1 and a frame portion 6 fitted and overlapped on the outer periphery of the hood 4
, A mounting frame 8 having a flange 7 mounted on the indoor wall surface of the wall portion 1, a notch groove 9 cut rearward from the front side of the hood 4, and the notch groove 9 is engaged with the notch groove 9. A bolt that is erected on the inner surface of the mounting frame 8 so as to slide, a coupling device 10 composed of the bolt, a washer, and a nut, and a grill 11 that is mounted on the indoor side of the mounting frame 8. It is.

When installing the ventilation fan in the above configuration, the mounting hole 2
The hood 4 and the mounting frame 8 are inserted from the indoor side of the vehicle and fixed to the wall surface with the flange 7 of the mounting frame 8 using screws or the like. Next,
The hood 4 is adjusted by sliding the hood 4 with respect to the mounting frame 8 so that the outside margin of the hood 4 has an appropriate size, and fixed by the connecting device 10. Then, the drainage frame 5 is inserted outside the hood 4 from the outdoor side, and its flange portion is fixed using screws or the like.
As a result, as shown in FIG. 2 and FIG. 3, even if the thickness B of the building wall is different, the allowance A on the outer wall surface of the hood 1 is obtained.
The appearance of the building is not impaired.
The connecting device 10 may be anything other than screws as long as it connects and fixes the mounting frame 8 and the hood 4.

Next, a second embodiment of the present invention will be described with reference to FIG.

As shown in the figure, the drainage frame 12 is integrally formed on the outer periphery of the hood 13 at a substantially intermediate position between the opening on the lower rear surface of the hood 13 and the overlapping portion that overlaps in the mounting frame 14. The mounting frame 14 is slidable with the hood 13 in the direction of the arrow.
There is no device for connecting and fixing the hood 13 to the hood 13. Other configurations are the same as those of the first embodiment.

In the construction method in the above configuration, first, the mounting frame 14 is fixed to the indoor side of the mounting hole 2 in the wall opening by using a screw or the like.
Next, insert the hood 13 from the outdoor side into the mounting hole, and
At 12, fix it with screws. As a result, even if the wall thickness of the building is different, the protrusion of the hood 13 to the outdoor side is the first dimension.
In the same manner as in the first embodiment, the drainage frame 12 functions as a mounting device for the hood 13 as compared with the first embodiment, and there is no need to connect and fix the mounting frame 14 and the hood 13. Also, since the drain frame 12 and the hood 13 are integrated, the drain frame
Since there is no infiltration of rainwater from the boundary between the hood 12 and the hood 13, there is no need to apply a caulking agent or the like to this part, improving workability and stabilizing the hood due to the drain frame provided at almost the middle position of the hood It is held in the state where it was done.

Effects of the Invention As is apparent from the above embodiments, according to the present invention, even when the wall thickness of the building is different, the overlapping portion of the hood and the mounting frame with the built-in blower in the mounting hole provided in the wall portion is formed. It is arranged and adjusted, and the outer dimensions of the hood can be made more appropriate than the outer wall, so that the appearance of the building is not impaired, and the air is blown into the hood as compared to the case where a blower is installed in the mounting frame. By providing the device, it is possible to provide a ventilation fan that can cope with a case where the wall thickness is thin.

In addition, since the drainage frame is provided integrally on the outer periphery of the hood substantially at the intermediate position, the ventilation hood can be provided, which can stably hold the hood, improve workability, and reduce construction costs. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view of a ventilation fan showing a first embodiment of the present invention, FIG. 2 is a sectional view showing a state in which a ventilation fan is attached to a wall having a large wall thickness, and FIG. FIG. 4 is a sectional view showing a state in which a ventilation fan is attached to a small wall portion, FIG. 4 is a perspective view of the ventilation fan of the second embodiment, and FIGS. 5 and 6 are sectional views showing attachment states of a conventional ventilation fan. 3 …… Blower, 4,13 …… Hood, 5,12 …… Draining frame, 8,
14 ... Mounting frame, 10 ... Connecting device.

Claims (2)

(57) [Claims] 1. A hood having a front side and a rear lower surface opened in a mounting hole opened in a wall portion and having a built-in blower, a mounting frame slidably mounted on the hood so as to be slidable back and forth, and A ventilation fan, comprising: a connecting device for connecting and fixing a frame and the hood; and a drainage frame provided on an outdoor wall surface of the outer periphery of the hood, wherein the hood and the mounting frame overlap in the mounting hole. 2. A hood having a front and rear lower surface opened in a mounting hole formed in a wall portion and having a built-in air blower, a mounting frame slidably mounted on the hood so as to be able to slide back and forth, and the hood. A ventilating fan, comprising: a drain frame provided on an outer periphery; wherein the drain frame is integrally provided substantially at an intermediate position of the hood between an opening on a rear lower surface of the hood and a superimposed portion overlapping in the mounting frame.