JP7365541B2 - ventilation grill - Google Patents

Description

The present invention relates to ventilation grilles.

2. Description of the Related Art Conventionally, ventilation grilles are known that are provided as terminal openings in a ceiling plate or the like in order to supply outdoor air indoors. In the past, it was common for this type of ventilation grill to have a grid-like outlet in the center of the front, but in recent years, the outlet has been provided along the outer edge and the center of the front is covered with a decorative panel. The number of ventilation grilles with a good design is increasing (see, for example, Patent Document 1).

JP2009-58157A

In order to improve the design of such ventilation grilles, there is a demand for a decorative panel that is larger than the base that holds the decorative panel so that the air outlet openings are difficult to see from below. However, in such a ventilation grille, the air outlet openings are formed on the side surface of the ventilation grille. Therefore, in this case, the blown airflow flows horizontally along the ceiling surface, resulting in a problem that the ceiling surface becomes dirty.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a well-designed ventilation grill that can blow out air in a direction away from the surface of a living room.

To achieve this objective, the ventilation grill of the present invention includes a base, a panel, a base ramp, and a panel protrusion. The base is connected to a duct through which air is supplied by a ventilation system and is fixed to the living room surface. The panels are larger than the base and are placed facing toward the living room so as to cover the base. The flat base inclined portion is inclined toward the panel at the outer edge of the base. The panel protrusion is formed to protrude toward the base at the outer edge of the panel. A panel protruding inclined portion is formed at the outer edge of the panel protruding portion. Air supplied from the duct is supplied from between the base slope part and the panel projecting slope part. The panel protrusion includes a panel protrusion that is closest to the base, and an in-panel protrusion slope that slopes inward from the panel protrusion , and the panel protrusion has a slope that is smaller than the base slope. The panel protruding inclined part is formed outward, and the inclination angle formed with the panel protruding inclined part at the bottom part formed on the living room side of the panel is greater than the inclination angle formed by the plane parallel to the bottom part and the base inclined part. Largely formed.

According to the ventilation grill of the present invention, the panel is larger than the outer shape of the base fixed to the surface of the living room, and the panel is arranged from below to face the base so as to cover the base. Then, the air supplied from the duct is supplied through an air supply port formed between the base slope part and the panel projecting slope part. As a result, the air supply vents are less visible than those on the living room side, resulting in a good design. Furthermore, the panel protrusion narrows the air path of the air supplied from the duct and accelerates the air. Then, the accelerated air is forcefully blown out in a direction away from the living room surface by the base inclined portion and the base protruding inclined portion. Therefore, it is possible to realize a well-designed ventilation grille that can blow air away from the surface of the living room.

1(a) is a schematic perspective view of a ventilation grill according to an embodiment of the present invention as viewed diagonally from above, and FIG. 1(b) is a schematic perspective view of the same ventilation grill as viewed diagonally from below. . It is a sectional view of the same ventilation grill.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. It should be noted that the embodiments described below each represent a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement positions and connection forms of the components shown in the following embodiments are merely examples and do not limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims representing the most significant concept of the present invention will be explained as arbitrary constituent elements. Further, in each figure, substantially the same configurations are denoted by the same reference numerals, and redundant explanations will be omitted or simplified.

First, with reference to FIG. 1, a schematic configuration of a ventilation grill 1 according to an embodiment of the present invention will be described. FIG. 1(a) is a schematic perspective view of the ventilation grill 1 according to the present embodiment seen from an upper diagonal direction, and FIG. 1(b) is a schematic perspective view of the same ventilation grill 1 seen from a lower diagonal direction. be.

The ventilation grill 1 has a flat rectangular shape and is provided as a terminal opening in a living room surface formed by an indoor ceiling board or wall board, etc., in order to supply outdoor air indoors. It is constituted by a base 20 and a flat rectangular panel 30.

The base 20 is a member that holds the panel 30 while being fixed to the surface of the living room where the ventilation grill 1 is installed. The base 20 has an opening 21 penetrating through the center of the upper surface. A duct (not shown) is connected to the opening 21 for supplying air taken in from outside by a ventilation device (not shown). Outdoor air supplied through the duct is taken into the ventilation grill 1 through this opening 21.

The panel 30 is a member that is larger than the outer shape of the base 20 and is disposed facing from the living room side so as to cover the base 20 while being held on the base 20. The panel 30 has a flat rectangular bottom portion 35 formed on the living room side, and the bottom portion 35 prevents the base 20 side from being visually recognized. Thereby, the ventilation grill 1 with good design is realized. Further, by applying some kind of design to the surface of the bottom portion 35 that is visible from the living room side, the design quality can be further improved.

In the ventilation grill 1, a panel 30 is held on a base 20, and the base 20 and the panel 30 are arranged to face each other, so that the air supplied from the opening 21 is circulated indoors between the base 20 and the panel 30. An air supply port 31 for supplying air is formed. In this embodiment, the air supply ports 31 are formed on two adjacent sides of the ventilation grill 1, respectively. On the other hand, partition walls 23 connecting the base 20 and the panel 30 are formed on the other two adjacent sides of the ventilation grill 1.

Generally, the ventilation grill 1 is often installed near a corner of a room surface such as a ceiling surface or a wall surface in a room. By installing the ventilation grill 1 on the living room surface so that the air supply port 31 of the ventilation grill 1 faces away from the corner of the living room surface, and the partition wall 23 of the ventilation grill 1 faces the direction of the corner of the living room surface, outdoor air can be Air can be efficiently supplied into the room. In addition, by suppressing the flow of supply air from the ventilation grill 1 toward the corner of the living room surface, it is possible to prevent the air from hitting the nearest indoor wall and causing dirt on the living room surface. It can be suppressed.

Further, as described above, the panel 30 is larger than the outer shape of the base 20 and is disposed facing the base 20 from the living room side so as to cover the base 20. Thereby, the ventilation grill 1 can make the air supply port 31 formed between the base 20 and the panel 30 less visible from the living room side. Therefore, the design of the ventilation grill 1 can be improved.

Next, the characteristic configuration of the ventilation grill 1 will be described with reference to FIGS. 1 and 2. FIG. 2 is a cross-sectional view of the ventilation grille 1.

In the ventilation grill 1, a base inclined portion 22 which is inclined toward the panel 30 is formed at least on the outer edge of the base 20 where the air supply port 31 is formed. Further, at least on the outer edge of the panel 30 where the air supply port 31 is formed, a panel protrusion 32 is formed to protrude toward the base 20 side. A panel protruding inclined part 33 is formed on the outer edge of the panel protruding part 32, and an air supply port 31 is formed between the base inclined part 22 and the panel protruding inclined part 33, and outdoor air is supplied indoors. It bothers me.

The panel protruding inclined portion 33 is formed outward from the base inclined portion 22. Further, the angle of inclination (the inclination angle θ2 of the panel protruding part 33) formed by the panel protruding inclined part 33 at the bottom part 35 of the panel 30 is different from the inclination angle formed by the base inclined part 22 and a plane parallel to the bottom part 35 (the base inclined part 33). The base inclined portion 22 and the panel protruding inclined portion 33 are formed so as to be larger than the inclination angle θ1) of the inclined portion 22.

On the other hand, the panel protrusion 32 includes a panel protrusion 36 that is closest to the base 20, and further includes a panel inward slope 34 that slopes inward from the panel protrusion 36 toward the inside of the panel 30. .

Next, the effects of the ventilation grill 1 formed as described above will be explained.

When air is supplied from the duct by the ventilation device, the outdoor air is taken into the ventilation grille 1 through the opening 21 formed in the base 20. The air taken into the ventilation grill 1 flows through an air path formed from the opening 21 to the air supply port 31, and is supplied into the room from the air supply port 31.

Here, the air passage of air supplied from the duct formed from the opening 21 to the air supply port 31 is narrowed by the panel protrusion 32 formed to protrude toward the base 20 side. As a result, the air passing through the air passage narrowed by the panel protrusion 32 is accelerated.

On the other hand, a base slope part 22 that slopes toward the panel side is formed on the outer edge of the base 20, and a panel projecting slope part 33 is formed on the outer edge of the panel 30. As a result, the air accelerated by the panel protrusion 32 is forcefully blown out in a direction away from the surface of the living room by the base inclined part 22 and the panel projecting inclined part 33, which are inclined toward the panel side. Therefore, it is possible to realize a well-designed ventilation grill 1 that can blow out air in a direction away from the surface of the living room.

Here, if the panel projecting slope part 33 is formed inside the base slope part 22, it will be difficult to support the flow of air in a direction away from the living room surface formed by the base slope part 22. On the other hand, in the ventilation grill 1, since the panel protruding slope part 33 is formed on the outside of the base slope part 22, it cannot support the flow of air in the direction away from the living room surface formed by the base slope part 22. , it is possible to form a more reliable flow.

Further, if the base inclined part 22 and the panel protruding inclined part 33 are formed such that the inclination angle θ2 of the panel protruding inclined part 33 is smaller than the inclination angle θ1 of the base inclined part 22, the base inclined part Air flow in a direction away from the living room surface formed by the panel 22 is pulled back toward the living room surface by the panel protruding inclined portion 33. At this time, there is a possibility that an air flow may be formed along the surface of the living room. In contrast, in the ventilation grill 1, the base inclined portion 22 and the panel protruding inclined portion 33 are formed such that the inclined angle θ2 of the panel protruding inclined portion 33 is larger than the inclined angle θ1 of the base inclined portion 22. Therefore, it is possible to form a flow of air in a direction away from the surface of the living room more reliably.

Furthermore, when the air taken in from the opening 21 flows toward the air supply port 31, the air path through which the air flows is gradually narrowed toward the panel protrusion 36 by the panel protrusion internal slope portion 34. As a result, even if the air path formed from the opening 21 to the air supply port 31 is narrowed by the panel protrusion 32, a large pressure loss will not occur compared to the case where there is a place where the air path is suddenly narrowed. It can be suppressed. Therefore, the speed of air supplied from the air supply port 31 can be set sufficiently high.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments, and it is readily understood that various improvements and modifications can be made without departing from the spirit of the present invention. This can be inferred. For example, each embodiment can improve its performance by adding one or more parts of the configuration of another embodiment to that embodiment, or by replacing one or more parts of the configuration of that embodiment. The embodiment may be modified and configured. Further, the numerical values listed in each of the above embodiments are merely examples, and it is naturally possible to employ other numerical values.

In the embodiment described above, FIG. 2 shows an example in which the panel protrusion 32 is formed so that the cross-sectional shape of the panel protrusion 32 is angular with a plurality of straight lines. On the other hand, the panel protrusion 32 may be formed so that the cross-sectional shape of the panel protrusion 32 has a curved shape with rounded corners. By rounding the corners of the panel protrusion 32, pressure loss against the wind flowing from the opening 21 toward the air supply port 31 can be reduced.

In the above embodiment, a case has been described in which the air supply ports 31 are formed on two adjacent sides of the ventilation grill 1 and the partition walls 23 are formed on the other two adjacent sides of the ventilation grill 1, but this is not necessarily the case. It is not limited to. For example, the air supply ports 31 may be formed on one to three sides of the ventilation grill 1, and the partition walls 23 may be formed on the remaining sides of the ventilation grill 1. Further, the air supply ports 31 may be provided on all sides of the ventilation grill 1.

Further, in the above embodiment, the case where the base 20 and the panel 30 are each formed into a flat rectangular shape has been described, but the shape is not necessarily limited to this, and the shape may be any shape such as a circular shape. good.

The ventilation grill according to the present invention can be applied to a ventilation grill that requires good design.

1 Ventilation grill 20 Base 21 Opening 22 Base inclined part 23 Partition wall 30 Panel 31 Air supply port 32 Panel protruding part 33 Panel protruding inclined part 34 Panel protruding inner inclined part 35 Bottom part 36 Panel protruding top part θ1 Inclination angle of base inclined part θ2 Panel Inclination angle of steep slope

Claims (1)

A base connected to a duct through which air is supplied by a ventilation system and fixed to the living room surface;
a panel that is larger than the outer diameter of the base and is placed oppositely from the living room side so as to cover the base;
only a flat plate-shaped base slope part that slopes toward the panel side on the outer edge of the base;
A panel protrusion formed on an outer edge of the panel to protrude toward the base,
A panel protruding inclined part is formed at the outer edge of the panel protruding part, and air is supplied from between the base inclined part and the panel protruding inclined part,
The panel protrusion includes a panel protrusion that is closest to the base, and an in-panel protrusion slope that slopes inward from the panel protrusion,
The panel projecting slope portion is formed outward from the base slope portion,
The panel projecting slope portion has an inclination angle formed with the panel projecting slope portion at a bottom surface portion formed on the living room side of the panel that is larger than an inclination angle formed by a plane parallel to the bottom surface portion and the base slope portion. Ventilation grille characterized by being formed .

Images