JPH07293955A - Mounting ventilating opening - Google Patents

Abstract

PURPOSE:To prevent invasion of rainy water infiltrated from a hood side from a gap of a peripheral edge of the hood into an interior and to eliminate contamination of a ventilating opening by fixing the peripheral edge of the hood to that of a door plate via stepped parts in a completely superposed state. CONSTITUTION:When rainy water is infiltrated from a hood 1 side, the water tends to be infiltrated from connected peripheral edges of the hood 1 and a louver door plate 3 into its interior. However, since two structures of stepped parts of the edges of both the members 1, 3 are entirely superposed and welded, invasion of the water into the interior is prevented. The water drops from louvered blades of the plate 3 and flows out of the hood 1. Further, rainy water adhered to inside of the plate 3 flows out from a drip port 6 of a lowermost stage of a ventilating opening 5 of the plate 3. Thus, invasion of the water infiltrated from the hood 1 side from a gap of the edge of the hood 1 into its interior can be completely prevented, and contamination of the opening due to the water infiltration can be eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting ventilation port.

[0002]

2. Description of the Related Art Ventilation cylinders with a hood have been widely used in existing ventilation holes for attachment, but as shown in FIG. 4, the periphery of an armored door plate which is in contact with and welded to the inside of the peripheral bent step of the hood. The part was welded to the peripheral step of the hood with a gap left between them, and some parts were particularly caulked in such a joined state.

However, in such a structure in which both members are partially overlapped with each other, rainwater blown from the outside of the hood flows in from the peripheral gap between the hood and the armored door plate and accumulates inside. It diffused naturally and penetrated into the inner wall surface from the attached wall surface, which was a cause of soiling the inner wall surface.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a mounting ventilation port which prevents such drawbacks.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, a step portion formed on the peripheral portion of a hood body is provided with a flange step portion having the same shape and length as the step portion. The entire surface is superposed and fixed, and the outer peripheral bent portion of the cylindrical body is fixed to the peripheral side surface portion of the armor door plate.

[0006]

[Function] When rainwater is blown up from the hood side,
The hood body and the armored door plate try to enter the inside from the peripheral edge. However, since the stepped structures of the peripheral portions of both members are entirely overlapped and welded, invasion into the inside is prevented. Then, it falls from each blade of the armored door plate and flows to the outside of the hood body.

Further, the rainwater attached to the inside of the armored door plate comes to flow out from the droop hole at the lowest stage of the ventilation port.

[0008]

1 is a hood body having an arbitrary shape, and a step portion 2 having a substantially L shape is formed on a peripheral portion of the hood body.

Reference numeral 3 is an armored door plate, and a flanged step portion 4 having the same shape and length as the stepped portion 2 of the hood body 1 is formed on the peripheral edge of the armored door plate. The collar stepped portion 4 and the hood body are formed. The step 2 of No. 1 is entirely overlapped and welded.

The armored door plate 3 is provided with a large number of ventilation holes 5 by cutting and raising blades, and a drooping hole 6 having an arbitrary shape is provided at the center of the lowermost stage of the ventilation holes. A wire mesh 7 is stretched on the armor door.

Reference numeral 8 is a tubular body, and a bent portion 9 is formed on the outer peripheral edge portion of the tubular body, and the bent portion is welded to the peripheral side surface portion of the armor door plate 3.

Reference numeral 10 denotes a claw piece provided by cutting and raising the peripheral surface of the cylindrical body 8 in an appropriate number, and the claw piece is elastically urged to be attached at the time of attachment to the wall surface portion.

[0013]

First, since the peripheral edge of the hood body and the peripheral edge of the armored door plate are fixed in a state of being completely overlapped with each other through the step portions of each other, rainwater blown from the hood side is adhered to the peripheral edge of the hood. It is possible to completely prevent the invasion of the inside from the gap between the parts, and therefore, it is possible to completely eliminate the occurrence of pollution due to the phenomenon of permeation of rainwater into the inner wall surface.

Further, the manufacturing cost can be reduced because the waterproof effect is sufficiently obtained without special caulking.

Secondly, even if rainwater that has lost its escape due to the above-mentioned completely waterproof and shut-off structure invades the inside of the armored door and accumulates therein, it will flow out from the droop hole of the lowest ventilation port to the outside. Become.

Thirdly, the claw pieces provided on the peripheral surface of the tubular body are not welded like the conventional ones but are cut and raised, so that the elastic effect is large and the attachment to the wall surface portion is made firmer and more reliable. It can be carried out.

[Brief description of drawings]

FIG. 1 is an overall back perspective view

FIG. 2 is an overall front perspective view

FIG. 3 is a vertical sectional view of the central portion.

FIG. 4 is a vertical sectional view of a central portion of a conventional product.

[Explanation of symbols]

 1 Hood 2 Steps 3 Armored Door Board 4 Collar Steps 6 Drop Holes 8 Cylindrical 10 Cut and Raised Claw Pieces

Claims (3)

[Claims] 1. A stepped portion formed on a peripheral portion of a hood body is provided with a collar stepped portion having the same shape and length as the stepped portion. A ventilation hole for mounting which is formed by fixing an outer peripheral bent portion of a cylindrical body to a peripheral side surface portion of the armor door plate. 2. A ventilator for mounting, comprising a hood body, a cylinder, and an armored door plate, wherein a vent hole is provided at the center of the lowest ventilation port of the armored door plate. 3. A ventilator for mounting, comprising a ventilator comprising a hood body, a tubular body, and an armored door plate, in which an appropriate number of cut-and-raised claw pieces are provided on the peripheral surface of the tubular body.