JP2703870B2 - Building ventilation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating device which is mainly used at the eaves to ventilate the attic of a wooden house.

[0002]

A closing plate is slidably engaged with a main body frame fixed to a building, and each of the closing plate and the ventilation plate portion of the main frame overlapping the outdoor side of the closing plate. At the time of ventilation, the ventilation holes that match each other are arranged in the sliding direction of the obstruction plate at equal intervals, and in the event of a fire, the heat is detected and the obstruction plate slides, and the ventilation holes on the obstruction plate side are opened. The position of the ventilation holes on the ventilation plate side is shifted from each other, and there is a structure that blocks the flow of air as a conventional example.
Since the obstruction plate and the ventilation plate are flat, the obstruction plate does not always slide smoothly in the event of a fire. May not be blocked.

[0003] The present invention focuses on the drawbacks of the prior art, and prevents rusting of the closing plate and the ventilation plate as much as possible in normal times, so that the closing plate slides smoothly in a fire. The present invention has been made for the purpose of providing a ventilation port device in which a ventilation port is reliably closed.

[0004]

SUMMARY OF THE INVENTION A closing plate slid by a tension spring is engaged with a main body frame fixed to a building, and the closing plate and the ventilation plate of the main body frame overlapping the outdoor side of the closing plate. In each of the parts, the ventilation holes that match each other at the time of ventilation are arranged at equal intervals in the sliding direction of the closing plate,
A projection is provided between the ventilation holes of the closing plate so as to be in sliding contact with the ventilation plate portion, and a thermofusible regulating piece for regulating the bias of the tension spring is provided between the main frame and the closing plate.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a ventilating device for a building according to the present invention. FIG. 1 is a partially cutaway front view of one half side, FIG. 3 is a cross-sectional view taken along line XX of FIG. 2, FIG. 4 is a partially cutaway front view of a half side showing a closed state, and FIG. 5 is a cross-sectional view taken along line YY of FIG.

In the drawing, reference numeral 1 denotes a main body frame which is fixed by being engaged with an opening R provided in a building. The main body frame 1 is provided on the outdoor side of a ventilation plate portion 3 of a main frame 2 made of a hat-shaped steel. 2, a cover frame 5 is mounted via spacers 4 mounted at appropriate locations along the longitudinal direction of the cover frame 5, and the grooves 2a, 5a along the longitudinal direction of the cover frame 5 and the main frame 2 are respectively defined by the cover frame 5 and the main frame 2. Is closed by a side plate 6 welded across both ends.

The ventilation plate 3 forming the groove 2a has:
Are arranged at regular intervals along the longitudinal direction, and are arranged so as to overlap the outdoor side of the ventilation plate portion 3, the grooves 5 a of the cover frame 5. The main body piece 5b constituting the part has a large number of second ventilation ports 8, which are formed by horizontally long holes.
Are arranged in line along the longitudinal direction.

Also, on both sides of the ventilation plate portion 3 on the indoor side of the first ventilation holes 7,...
a pair of rising portions 9 and 10 having a, 10a are provided opposite each other, and both ends in the longitudinal direction are engaged in a gap formed by the pieces 9a and 10a of the rising portions 9 and 10 and the ventilation plate portion. The closing plate 11 is slidably engaged with the main body frame 1 so as to fit together.

The closing plate 11 is provided with the main frame 2, that is, the main frame 1.
Are provided with the first vents 7,... Provided in the ventilation plate part 3 of the first ventilator 3 and the third vents 12,. Similarly, they are formed in a square shape and arranged at equal intervals from each other.
Are provided at the positions corresponding to the four corners of the first ventilation port 7 on the side of the ventilation plate portion 3 between which the protrusions 13, 13, 13, 13 are provided. 13 serves as a spacer so that a gap a is formed between the closing plate 11 and the ventilation plate portion 3.

FIG. 14 shows a main frame 2 constituting the main frame 1.
The stopper 2 engages with one end of the groove 2a in the longitudinal direction (sliding direction of the closing plate 11) and is attached to the stopper. Are regulated, and the projections 13, 13, 13, 13 provided on the closing plate 11 side engage with the corresponding first ventilation ports 7, and the first and third ventilation ports 7,.
Are to be closed.

An upright piece 16 is provided at one end of the closing plate 11 on the stopper 14 side so as to face the rising piece 14a of the stopper 14, and the above-mentioned stopper piece 14a is provided between the upright piece 16 and the stopper piece 14a. A tension spring 15 is provided, and the tension spring 15 releases the regulation of the elastic action by the thermal melting of the regulation piece 17, and slides the closing plate 11 along the main frame 2 as described above.

A supporting piece 19 is provided upright at an intermediate portion along the longitudinal direction of the closing plate 11, and is arranged near the supporting piece 19 so as to overlap with one of the rising pieces 8 of the main frame 2. A support piece 18 is provided on the main frame 2 (body frame 1), and the first and third ventilation holes 7,..., 12 are provided between the support pieces 18 and 19 against the bias of the tension spring 15. ,... Are provided so as to maintain the mutual positional relationship so that they coincide with each other.

The restricting piece 17 is made of a material that is easily melted by heat generated during a fire.

[0014]

Since the present invention has the above-described structure, a gap is formed between the closing plate and the ventilation plate portion of the main frame in the normal state due to the presence of the protrusion, and air can flow through the gap. Both are not rusted, and the tension spring operates to smoothly slide the closing plate, so that the ventilation port can be reliably closed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of one half side.

FIG. 2 is a partially cutaway front view of another half side.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a partially cutaway front view of a half side showing a closed state.

FIG. 5 is a sectional view taken along line YY of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body frame 3 Ventilation board part 7 First ventilation port 11 Closure plate 12 Third ventilation port 13 Protrusion 14 Stopper 15 Tension spring

Claims (2)

(57) [Claims] 1. A closing plate which is slid by the tension of a tension spring is engaged with a main body frame fixed to a building, and each of the closing plate and the ventilation plate portion of the main body frame overlapping the outdoor side of the closing plate. During ventilation, the ventilation holes that coincide with each other are arranged in a row in the sliding direction of the closing plate at equal intervals, and between the ventilation holes of the closing plate, a projection that slides on the ventilation plate portion is provided.
A ventilating device for a building, wherein a thermofusible regulating piece for regulating the bias of the tension spring is provided between the main body frame and the closing plate. 2. A stopper for restricting the sliding of the closing plate and engaging the projection with the ventilation port on the side of the ventilation plate portion when the closing plate slides by the bias of the tension spring. The ventilation opening device for a building according to claim 1 provided on one side.