JPH0988198A - Stairs ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To take only clean under-floor air indoors by a filter. SOLUTION: An air-sending space 5 having a ventilating passage 4 to connect an under-floor space S under stairs A and an opening part 3 arranged in a riser 2 to each other, is formed under the stairs A inside of a house. A fin 6 to blow out under floor air of the under-floor space S indoors from the opening part 3, is arranged in the air-sending space 5, and an air filtering filter 7 is installed in the opening part 3 from the indoor side so as to be freely mountable and demountable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase ventilation system capable of supplying clean underfloor air from which dust, dust, pollen, etc. have been removed.

[0002]

2. Description of the Related Art A ventilation system for taking in underfloor air into a room
It is used to ventilate the room while conserving energy during heating and cooling.

[0003]

However, since the underfloor air sometimes contains a relatively large amount of dust, dust, pollen, nitrogen oxides, etc., a person who is sensitive to the quality of the air sucks the underfloor air as it is. This may cause allergic symptoms such as hay fever.

The present invention is based on the fact that a filter is removably attached from the inside of the room to the opening through which the underfloor air is blown, and only clean underfloor air from which dust, dust, pollen, nitrogen oxides, etc. have been removed is put into the room. The purpose of the present invention is to provide a staircase ventilation device that can be taken in and the filter can be easily replaced.

[0005]

In order to achieve the above-mentioned object, a stair ventilation device of the present invention connects an underfloor space under a stairway and an opening provided in a batten board under a stairway inside a house. An air supply space having a ventilation path is formed, and a fan that blows the underfloor air of the underfloor space into the room from the opening is provided in the air supply space, and the opening is detachably air-filtered from the indoor side. The filter for is attached.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, a staircase ventilation device 1 of the present invention has a ventilation path 4 that connects an underfloor space S under the staircase A and an opening 3 provided in a lowermost step board 2 below a staircase A inside a house. An air supply space 5 is formed, and a fan 6 that blows out the underfloor air of the underfloor space S from the opening 3 into the room is provided in the air supply space 5, and the opening 3 is also provided.
A filter 7 for air filtration is detachably attached to the inside of the room.

The stair A is formed, for example, by arranging a horizontal step plate 16 through a crosspiece 14 and a decorative frame 15 on the upper end of a vertical shingling plate 2 ... Between a pair of side plates. The run-in plate 2 is provided with a rectangular opening 3 that communicates with the bottom of the stairs A. The opening 3 may be provided in substantially the entire area of the shingled plate 2, but may be provided in a part thereof.

The floor body F supporting the stairs A is formed by using plywood or the like, and a rectangular hole portion 10 communicating with the underfloor space S is formed below the lowermost step plate 16. Is drilled inward. The opening 3 is provided on the upper surface of the floor F.
The members 20 having a rectangular cross section whose lower side and upper surface are aligned are fixed to a position below the stair A where they come into contact with the inner surface of the lowermost indentation plate 2 and to a position inside the hole 10.

Therefore, below the stair A, that is, below the lowermost step plate 16, the underfloor space S is provided through the hole 10.
An air supply space 5 having a ventilation path 4 connecting the above and the opening 3 is formed.

A base plate 12 having an insect net 11 for covering the hole 10 is arranged in the air supply space 5. The base plate 12 includes a base body 19 provided with a rectangular hole portion 17, and the hole portion 17 is covered with an insect-repellent net 11, and the base body 19 is placed on the floor F between the members 20, 20. The insect repellent net 11 covers the hole 10 by fixing the hole to the hole 10.

The fan 6 is housed in a rectangular parallelepiped base box 22 having one side open. The base box 22 has a size such that it can be inserted into the air supply space 5 through the opening 3, is placed on the separating member 20 ... And is fixed using a fixing tool such as a screw, and the opening is formed. The peripheral edge surrounding 22A is substantially aligned with the outer surface of the shroud 2 around the opening 3.

The lower plate 26 of the base box 22 has the hole 10
A hole 27 communicating with the insect repellent net 11 is provided, and the fan 6 is attached to cover the hole 27. By the operation of the fan 6, the underfloor air in the underfloor space S is blown into the room from the opening 22A through the hole 10, the insect net 11, and the hole 27.

Further, the base box 2 arranged in the opening 3
In this embodiment, the filter 7 is detachably attached from the indoor side to the opening 22A of the second portion by using the base frame 30, and the grill 31 is fixed to the base frame 30.

The base frame 30 is inserted into the opening 22A of the base box 22 and has a rectangular cylindrical base 33 extending along the inner surface of the base box 22, and an outer surface of the sliding plate 2 protruding from the outer edge of the base 33. A projecting piece 35 which is detachably attached using a fastener 34 such as a screw, and a receiving piece 36 which projects from the inner edge of the base 33 to receive the filter 7 and detachably attaches the filter 7 by a fastener such as a screw. And with.

On the outer surface of the projecting piece 35 of the base frame 30, a reinforcing rectangular frame 37 is provided with a fixing tool 39 such as a screw at a substantially central position in the length direction (horizontal direction) of the base frame 30. The grill 31 is detachably attached, and the grill 31 having a cover piece 40 that covers the peripheral edge of the opening 3 is attached to the outer surface of the frame 37 using a fixing tool 41 such as a cosmetic screw.

By removing the grill 31 and the frame 37 in this way, the filter 7 can be easily replaced and its maintainability can be improved.

[0017]

As described above, the staircase ventilation device of the present invention forms an air supply space having a ventilation path connecting an opening provided in a batten board and an underfloor space below a staircase inside a house, and A fan that blows underfloor air into the room from the opening is provided in the air supply space, and a filter for air filtration is detachably attached to the opening from the indoor side. Therefore, it is possible to take in the underfloor air into the room by utilizing the dead space under the stairs, and it becomes possible to remove dust, dust, pollen, nitrogen oxides, etc. of the underfloor air by the filter, which is sensitive to the air quality. It can be safely used by people and people with allergies.

Further, since the filter can be easily replaced from the inside of the room, the filter can be conveniently maintained, and various filters such as pollen and nitrogen oxide can be used according to needs.

Further, by the fan, the air volume can be secured regardless of the mounting of the filter, and the ventilation in the room can be surely performed using the clean underfloor air.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention.

FIG. 2 is an exploded perspective view thereof.

[Explanation of symbols]

 2 Barbed plate 3 Opening part 4 Ventilation path 5 Air supply space 6 Fan 7 Filter A Stairs S Underfloor space

Claims (1)

[Claims] 1. An air supply space having an air passage connecting an underfloor space under the stairs and an opening provided in the staircase is formed below the stairs in the interior of the house, and the air supply space is provided with the air supply space. A stair ventilation device comprising a fan for blowing underfloor air in an underfloor space into the room through the opening, and a filter for air filtration detachably attached to the opening from the indoor side.