JPS6349633Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a ventilation device for ventilation in a bathroom.

BACKGROUND ART Conventionally, a unit bath is known in which a bathtub, a washing area, a bathroom wall, and a bathroom ceiling are integrally formed using plastic plates such as FRP, and these are joined to form a box shape. This unit bath has various irregularities on its outer circumferential surface due to the shape of the bathtub section, the shape of the bathroom wall section, or the joint portions. For this reason, when a unit bath is installed in a house, there is usually a slight gap between the unit bath and the wall of the house surrounding the unit bath. Around this gap, there are various housing components, such as beams that support the unit bath and board materials that make up the walls. By the way, if a difference occurs between the temperature inside the unit bath and the outside temperature, dew condensation may occur on the housing components around the gap, and the gap may become damp. If these dew condensation and moisture are left undisturbed, there is a risk that they may cause corrosion of the above-mentioned housing components.

In addition, in the above-mentioned bath unit, not only the joints of the bathtub, washing area, and bathroom wall where water is directly exposed, but also the joints around the ceiling.
Although it has a watertight structure that prevents moisture from escaping, in some cases a small amount of moisture may leak into the above gaps through the joints of the bathroom ceiling, so measures to prevent this moisture should also be taken into consideration. It is necessary to keep it.

This idea was made in view of the above circumstances, and by creating a structure that allows ventilation in the gap between the unit bath and the wall of the building surrounding the unit bath, it is possible to prevent the housing components around the unit bath from corroding. The purpose is to provide a ventilation system that can

This invention will be explained below based on embodiments shown in the drawings.

1 to 5 show an embodiment of this invention. In FIG. 1, reference numeral 1 indicates an outer wall of a building, and reference numeral 2 indicates a wall of a unit bath, which will be described below. This unit bath is installed in a room surrounded by an outer wall 1, a partition wall connected to the outer wall 1, a floor, and a ceiling.The bathtub, washing area, and bathroom wall are each made of integrally molded FRP. This is a well-known box-shaped structure in which the bathroom ceiling and the bathroom ceiling are joined together. In addition, the outer surface of the bathroom wall of this unit bath has unevenness due to the above-mentioned joints of each part of the unit bath and unevenness depending on the shape of the bathroom wall. There is a gap S between the outer wall 1 and the outer wall 1 as shown in FIG.

In addition, at a required position of the wall 2, the outer wall 1 is provided horizontally through the wall 2 and passes through the gap S.
A cylindrical duct 3 is provided that penetrates through the unit bath and opens to a bathroom A in the unit bath and an outdoor area B. A flange 3a is formed at one end of the duct 3, and the duct 3 has screws 4 that bring the flange 3a into close contact with the inner surface of the wall 2 and pass through the wall 2 and appropriate locations in the circumferential direction of the flange 3a. It is fixed to the wall 2 by. Further, on the outer circumferential portion of the duct 3 facing the gap S, protruding walls 3b are formed with appropriate gaps in the circumferential direction of this outer circumferential portion. The protruding wall 3
b is formed by protruding a part of the outer circumferential wall of the duct 3 into a rectangular planar shape and a triangular side surface with the flange 3a side raised. S and duct 3
A suction hole 3c that opens inside is bored.

By the way, a weather cover 5 with a rib 5a is attached to the opening of the duct 3 on the outside wall B side, and a ventilation fan 6 with a lighting device is attached to the opening of the duct 3 on the bathroom A side.
This ventilation fan 6 has an air supply fan 6a and a damper 6 inside.
It consists of a cylindrical body 6c which is provided with cylindrical parts b and 6b and inserted into the duct 3, and a lighting fixture 6d fitted to the outer circumference of this cylindrical body 6c. The above air supply fan 6a
and the lighting device 6d are each connected to the electrical wiring of the building via a switch (not shown), and by turning on the switch, the air fan 6a or the lighting device 6d can be activated or illuminated. It's summery.

Next, the operation of this device configured as described above will be explained.

When the switch is turned on and the air fan 6a is operated, the air in the bathroom A passes through the duct 3 as shown by the arrow in the figure, pushes up the dampers 6b, and exits outside B through the weather cover 5. At this time, the air in the gap S is sucked into the duct 3 from the suction hole 3c by the wind pressure of the air flowing in the duct 3 and is discharged outdoors B. In other words, ventilation within the gap S can be achieved. Therefore, moisture will not accumulate around the gap S, and the housing components around the unit bath will not corrode due to moisture.

By the way, this invention can be constructed by attaching a duct 3 with a suction hole 3c to the wall 2, and attaching a weather cover 5 and a ventilation fan 6 to the duct 3, so the structure is simple and easy to implement.

In addition, in the illustrated embodiment, the lighting equipment 6
Since the ventilation fan 6 with d was used, the ventilation fan 6 was installed on the bathroom A side of the duct 3, but if the lighting equipment and the ventilation fan 6 are separate, the ventilation fan 6 should be installed on the outdoor B side of the duct 3 or inside the duct 3. You can also do it.

As explained above, this idea is to provide a duct that penetrates the wall of the unit bath, which is provided with a gap between it and the outer wall of the building, and the above-mentioned outer wall, and this duct has a suction hole that opens into the gap. form,
A ventilation fan is attached to the duct, and the ventilation fan sucks the air in the gap through the suction hole into the duct and exhausts it outdoors, making it possible to ventilate the gap. Moisture does not accumulate in surrounding housing components, and therefore corrosion of the housing components can be prevented. In addition, this invention can be constructed by providing a duct with a suction hole and a ventilation fan, and since its construction is simple, it is easy to install.
Equipment costs are also low.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
2 is a side view of the duct, FIG. 3 is a rear view of the duct, FIG. 4 is a vertical sectional view of the duct, and FIG. 5 is a perspective view of the duct. 1...Outer wall, 2...Wall body, 3...Duct, 3c
... Suction hole, 6... Ventilation fan, S... Gap, A...
Bathroom, B...Outdoor.

Claims (1)

[Scope of utility model registration request] A unit bath wall that forms a bathroom is provided with a gap between it and the outer wall of the building, and a duct that penetrates the outer wall and opens to the bathroom and the outdoors is provided, and an opening is provided on the outer periphery of this duct into the gap. The ventilation system is constructed by forming a suction hole and attaching a ventilation fan to the duct.