JP3044734U - Building ventilation openings - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention forms a space between a mesh plate and a louver plate at a ventilation opening for a building to minimize the adhesion of rainwater to the mesh plate and to enter the space. The purpose is to ensure that rainwater that has been dropped falls outside. SOLUTION: In the present invention, a peripheral frame portion 6 of a cover plate 5 is fitted to a mesh plate 4 abutting on one side flange edge portion 2 of a cylindrical body 1, and the cover plate is further stepped than the peripheral frame portion. 7, a protruding portion 8 is formed outward, and the outer surface of the protruding portion is provided with a plurality of blade pieces 9 cut and raised inward and upward from the lower side, and an opening 10 is formed. A space portion 14 is formed between the plate portion and the outer side surface portion of the cover plate, a front elongated hole 11 is provided at a lower central portion of the lowermost opening of the cover plate, and the front elongated hole 11 is provided at a position right below the front elongated hole. It is formed by forming a long bottom hole 12 in the protruding portion.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a ventilation opening for a building.

[0002]

[Prior art]

 Conventionally, as a ventilation port for a building, a louver plate in which a mesh plate is attached to an outer portion of a cylindrical body and a blade piece is formed in a downward direction on the outside in contact with the mesh plate has been widely used.

However, in this conventional vent, since the mesh plate and the louver plate are close to each other, the mesh plate tends to be rusted by rainwater, or rainwater remains on the mesh plate for a long time. However, the structure of the louver blades was such that rainwater easily entered the interior.

[0004]

[Problems to be solved by the invention]

 Therefore, an object of the present invention is to provide a highly practical ventilation port that has eliminated the drawbacks of the conventional building ventilation port.

[0005]

[Means for Solving the Problems]

 According to the present invention, the peripheral frame portion of the cover plate is fitted to the mesh plate abutting on one side flange portion of the cylindrical body, and the cover plate forms a step portion further than the peripheral frame portion and protrudes outward. The outer surface of the projecting portion is provided with a plurality of blade pieces cut and raised inward and upward from the lower side, and an opening is formed, so that the opening is formed between the mesh plate portion and the outer surface portion of the cover plate. A space portion is formed in the cover plate, and a front elongated hole is provided in the lower central portion of the lowermost opening of the cover plate, and a bottom elongated hole is formed in the protruding portion at a position perpendicular to the front elongated hole. It is.

[0006]

[Embodiment of the invention]

 Now, if rainwater enters through the opening on the outer surface of the protruding portion of the cover plate, there is a distance due to the space until reaching the inner mesh plate, so the rain falls almost without reaching the mesh plate and falls down. Out of the bottom slot and the front slot.

[0007]

【Example】

 Reference numeral 1 denotes a cylindrical body composed of a cylindrical body having an appropriate length and diameter, and a flange edge 2 is formed around one side of the cylindrical body.

3 are mounting claws provided by cutting and raising at appropriate positions on the peripheral surface of the cylindrical body 1. The mounting claws are formed with an appropriate bend in order to increase strength.

Reference numeral 4 denotes a mesh plate that comes into contact with the flange edge portion 2 of the cylindrical body 1, and a peripheral frame portion 6 of a cover plate 5 described later is fitted to and welded to the mesh plate.

Reference numeral 5 denotes a covering plate having a peripheral frame portion 6 around which the flange edge portion 2 of the cylindrical body 1 on which the mesh plate 4 is mounted is fitted from the outside thereof. 7 is formed to form a protruding portion 8 protruding outward.

Reference numeral 9 denotes a blade piece that is cut and raised in a large number of steps on the outer surface 13 of the protruding portion 8 of the cover plate 5, and the blade piece is cut and raised from the lower side toward the inside upward. Each of the openings 10 is formed by the formation of the blade pieces 9 which are cut and raised inward on the inside, whereby the outer surface of the cover plate 5 is flush.

Reference numeral 11 denotes a front elongated hole provided at a central portion immediately below the lowermost opening 10 of the projecting portion 8 of the cover plate 5, and a bottom elongated hole 12 is formed in the projecting portion 8 at a position right below the front elongated hole. To form

Reference numeral 14 denotes a space formed between the mesh plate 4 and the outer surface 13 of the protruding portion 8 of the cover plate 5, and the volume of this space is considerably large.

[0014]

[Effect of the Invention] Since a considerably wide space is formed between the outer surface of the cover plate having an opening and the inner mesh plate portion due to the formation of the projecting portion, rainwater hardly adheres to the mesh plate. This makes it possible to fall out of the space without causing it to fall, and even if it adheres, it falls directly and can be reliably discharged to the outside through the elongated hole at the bottom.

[0015] Therefore, no rust is given to the mesh plate, so that the ventilation hole for the building has a long durability.

[Brief description of the drawings]

FIG. 1 is an overall perspective view.

FIG. 2 is a side sectional view of the whole.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical body 2 Flange edge part 4 Net plate 5 Cover plate 6 Peripheral frame part 7 Step part 8 Projection part 9 Blade piece 11 Front slot 12 Bottom slot 14 Space

Claims (1)

[Utility model registration claims] 1. A peripheral frame portion of a cover plate is fitted to a mesh plate abutting on one side flange portion of a cylindrical body, and the cover plate further forms a step portion than the peripheral frame portion and protrudes outward. The outer surface portion of this protrusion is provided with a plurality of blade pieces cut and raised inward and upward from the lower side and forms an opening, between the mesh plate portion and the outer surface portion of the cover plate. A ventilation system for a building, wherein a space is formed, a front elongated hole is provided in a lower central portion of the lowermost opening of the cover plate, and a bottom elongated hole is formed in the protrusion at a position right below the front elongated hole. mouth.