JP2000356376A - Terminal equipment for ventilating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a terminal equipment for a ventilating system, capable of setting easily the direction of an eccentricity at a working site and reduced in the resistance of air discharging. SOLUTION: In a terminal equipment for a ventilating system provided with a mounting tubular unit 3, fitted into the opening end of outdoor side of a ventilating system opened on the wall surface of a building, and a cover unit 5, provided with an opening unit before the outdoor side opening unit 4 of the mounting tubular unit 3 and covering the mounting tubular unit 3, the opening unit 8 of the cover unit 5 is constituted so as to have an area larger than that of the outdoor side opening unit 4 while an inward flange 7 is formed on the opening rim of the opening unit 8 so that one part of the profile line of the opening unit 8 is superposed substantially on one part of the profile line of the outdoor side opening unit 4 in the plane of projection under inscribed condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting tube portion fitted and mounted to an outdoor opening end of a ventilation system opening on a wall of a building, and a mounting tube portion in front of the mounting tube portion on the outdoor side. The present invention relates to a ventilation type terminal provided with a cover portion to be covered.

[0002]

2. Description of the Related Art In such a ventilating terminal, it may be necessary to mount a cover part eccentrically to a mounting tube part depending on the condition of a wall surface to be mounted and the design of a building. For example, when the cover interferes with a power meter or eaves ceiling near the outside opening end of the ventilation system, or as a result of arranging two ducts for air supply and exhaust of a heat exchange ventilation fan side by side, This is the case where the interval between the outdoor open ends is reduced.

The vent cap disclosed in Japanese Patent Application Laid-Open No. 10-267335 is a terminal device that meets such a demand. That is, as shown in FIG. 13, a mounting tubular portion 21 having a flange 20 at one end and a cover portion 22 are provided,
The flange 20 of the mounting cylinder 21 is held between two movable holding members 23 so that the cover 22 can be mounted via the holding member 23 even if the cover 22 is displaced from the center line of the mounting cylinder 21. It was done. Although this terminal device can adjust the eccentric direction and the eccentric width of the cover portion 22, there is a problem that the number of components is large and the manufacturing cost is increased. In this regard, in the terminal device in which the eccentric direction and the eccentric width of the cover are fixed in advance, it is possible to avoid an increase in the number of parts and an increase in manufacturing cost. A terminal of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 10-306932. As shown in FIG. 14, the terminal device includes a mounting cylinder 21 and a cover 22.
And the inner peripheral surface of the mounting cylinder 21 and the cover 2.
2 and the inner peripheral surface thereof are continuous in a substantially flat state at the respective upper end positions. Thereby, it is possible to effectively control the blowing of the ventilation flow.

[0004]

In the ventilation type terminal, most of the covers are provided with a flange projecting inward from the inner periphery thereof, and the space surrounded by the flange edge is an outdoor opening. The outdoor opening is provided with inclined fins or wire mesh for insect control. The reason for adopting such a configuration with a flange is to structurally increase the rigidity of the entire cover portion, greatly improve the strength, and prevent deformation due to external force. Even in the conventional terminal described above,
The above-described configuration is adopted for the cover portion 22, and even if the inner peripheral surface of the mounting tube portion 21 and the inner peripheral surface of the cover portion 22 are substantially flat at the respective upper end positions. In addition, the ventilation flow collides with the flange on the upper side of the outdoor opening of the cover portion 22, and the exhaust resistance is increased. Further, in the terminal device as shown in FIG. 14 in which the eccentric direction and the eccentric width of the cover portion 22 are fixed in advance, since the eccentric direction cannot be set at the construction site, the terminal device is previously eccentric in the upward direction, the right direction, and the left direction. It was necessary to align the cored terminals.

[0005] The present invention has been made to solve the above conventional problems.
It is an object of the present invention to obtain a ventilation terminal having a low exhaust resistance and capable of being mounted on an eccentric body, and to provide an inexpensive ventilation terminal having a low exhaust resistance capable of easily setting an eccentric direction at a construction site.

[0006]

In order to achieve the above object, an invention according to a first aspect of the present invention is directed to a mounting cylinder portion fitted and mounted on an outdoor opening end of a ventilation system that opens on a wall of a building, and a mounting cylinder. A ventilating terminal having an opening in front of the outdoor opening of the part, and a cover covering the mounting cylindrical part, the opening of the cover part is connected to the outdoor opening of the mounting cylindrical part. The opening is formed with an inward flange at the rim of the opening, and a part of the contour of the opening is the contour of the outdoor opening of the mounting cylinder. Means is adopted so as to substantially overlap a part of the line in a circumscribed state on the projection plane.

According to a second aspect of the present invention, a plurality of inclined fins having an angle protruding inward are provided substantially parallel to an opening of the cover in the means according to the first aspect. Means for setting the closed space formed at the intersection of the flange and the flange at the end of the inclined fin at a position away from the contour of the outdoor opening of the mounting tube is adopted.

In order to achieve the above object, the invention of claim 3 employs means for providing a drain hole at the lower end and both sides of the cover part in the means according to claim 1 or 2 respectively.

In order to achieve the above object, a fourth aspect of the present invention is to form the outer shell of the cover part in the means according to the third aspect into a circular shape or a square shape, and rotate the entirety by 90 degrees to the left or right to mount. In this case, a means is adopted so that the design is not impaired.

In order to achieve the above object, an invention according to a fifth aspect of the present invention is directed to a mounting tubular portion which is fitted to an outdoor opening end of a ventilation system which is opened on a wall of a building, and an outdoor opening of the mounting tubular portion. A ventilating terminal device having an opening in front of and having a cover for covering the mounting cylinder, mounting the cover at an eccentric position offset from the center line of the mounting cylinder. ,
Means for providing drainage holes at the lower end and both sides of the cover portion are adopted.

In order to achieve the above object, a sixth aspect of the present invention provides the above-mentioned means, wherein the outer shell shape of the cover portion is configured to be circular or square, and the whole is turned by 90 degrees to the left or right for mounting. In this case, a means is adopted so that the design is not impaired.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 The present embodiment shown in FIGS. 1 to 8 is directed to a wall surface 1 of a building as shown in FIG.
A mounting tube portion 3 fitted and mounted on an outdoor side open end of a ventilation system constituted by a duct pipe 2 or the like that opens to the outside, and an opening in front of the outdoor side opening portion 4 of the mounting tube portion 3; The present invention relates to a ventilating terminal provided with a cover section 5 that covers the mounting cylinder section 3. The mounting cylinder portion 3 is configured as a cylindrical body having a flange 6 that protrudes in the radial direction at one end, and is fitted and mounted to the outdoor opening end of the ventilation system with the flange 6 facing the wall surface 1.

As shown in FIGS. 1 and 2, the cover portion 5 is formed as a cylindrical body having a flange 7 projecting inward from the inner periphery thereof, and the space of the cover portion 5 surrounded by the edge of the flange 7 is reduced. It is configured as an outdoor opening 8, and a drain hole 9 is formed at the lower end. A plurality of inclined fins 10 having an angle protruding inward are provided substantially parallel to the outdoor opening 8 of the cover 5. The inclined fin 10 has a function of preventing rainwater from entering. Cover part 5
The flange 7 is a structure for structurally increasing the rigidity of the entire cover portion 5, improving the strength, and preventing deformation due to external force. The inner diameter of the cover 5 is configured to be larger than the inner diameter of the mounting cylinder 3, and the outdoor opening 8 of the cover 5 is smaller than the inner diameter due to the configuration of the flange 7. It is opened larger than the inside diameter of.
That is, the outdoor opening 8 of the cover portion 5 is configured to have a plane area larger than that of the outdoor opening 4 of the mounting tube portion 3,
The mounting cylinder 3 is arranged such that a part of the outline of the outdoor opening 8 of the cover part 5 substantially overlaps a part of the outline of the outdoor opening 4 of the mounting cylinder 3 in a projected plane in a circumscribed state. Is mounted by screws 11 so as to cover the mounting tube 3 on the outside of the vehicle.

That is, with respect to a plane perpendicular to the center line X of the mounting cylinder 3, the outdoor opening 4 of the mounting cylinder 3 and the cover 5
Each projection opening that projects the outdoor opening 8 of
The periphery of the projection opening of the cover 5 and the periphery of the projection opening of the mounting tube 3 partially touch each other, and the projection opening of the mounting tube 3 is within the projection opening range of the cover 5. In this state, the center lines Y and X of the cover 5 and the mounting cylinder 3 are eccentric (FIG. 1).
reference). The center of the flange 6 of the mounting cylinder 3 is eccentric to the center line X of the mounting cylinder 3, similarly to the cover 5. In FIGS. 1 and 2, the outdoor opening 8 of the cover 5 and the outdoor opening 4 of the mounting cylinder 3 are both perpendicular to the center line X of the mounting cylinder 3. Substantially the same as the projection opening.
However, the circumference of the projection opening of the cover 5 and the mounting cylinder 3
Even if the circumference of the projection opening part is partially in contact with each other, this does not have a strict geometrical meaning, and a deviation of an error due to processing or assembly is allowed. The same applies to eccentricity in the horizontal and oblique directions as shown in FIGS. 4 and 5 in addition to the vertical direction as shown in FIG.

The cover portion 5 is formed such that the inclined fins 10 are in the horizontal direction, and a pocket-shaped closed space portion 12 formed at the intersection of the flange 7 with the inclined fin 10a at one end of the inclined fins 10 is formed. As shown in FIG.
By setting the position farthest from the contour of the outdoor-side opening 4, it is possible to reduce the occurrence of turbulent flow when the exhaust gas flows into the closed space 12.

In the terminal device having the above-described configuration, the ventilation flow flowing into the mounting tube portion 3 from the ventilation system constituted by the duct pipe 2 and the like does not collide with the flange 7 of the cover portion 5. Since the air is smoothly exhausted from the outdoor opening 8 of the cover portion 5 to the outside, the terminal device has low exhaust resistance. FIG. 3 is a diagram showing a terminal G shown as a conventional example shown in FIG.
1 shows test results obtained by measuring the pressure loss of a terminal device G2 according to the present embodiment. The test conditions were pipe diameter 10
It corresponds to 0 mm and the eccentric direction is the vertical direction under the same air volume condition. FIG. 3 also shows that the terminal device G2 has low exhaust resistance and low pressure loss.

In this terminal device, the cover portion 5 can be easily attached to the mounting tube portion 3 without any special parts at the construction site according to the condition of the wall surface 1 to be mounted or the design of the building as shown in FIG. It can be mounted eccentrically in both directions. Therefore, one terminal having an eccentric width fixed in advance can respond to the situation of various mounting portions, and the manufacturing cost can be reduced.

A mesh 13 (wire mesh) may be provided in the outdoor opening 8 of the cover 5 instead of the inclined fin 10 as shown in FIG. 6 to prevent insects from entering. In addition, as shown in FIG. 7, the outdoor opening 4 of the mounting cylinder 3 and the outdoor opening 8 of the cover 5 are opened not at a right angle to the center line X of the mounting cylinder 3 but at an angle. It may be configured,
Further, the shape of the cover portion 5 may be circular or rectangular as shown in FIG.

Embodiment 2 The present embodiment shown in FIGS. 9 to 12 is obtained by devising the terminal device shown in the first embodiment with regard to drainage, and is the same as that of the first embodiment except for the configuration related to this. . Therefore, the same portions as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the description thereof is omitted.

The terminal device according to the second embodiment is shown in FIGS.
As shown in (1), the outer shell shape of the cover portion 5 is configured to be circular or square, and drain holes 9 are opened at the lower end portion and left and right of the cover portion 5, respectively. In FIGS. 9 and 10, the cover 5 is mounted eccentrically in the vertical direction. In this case, the water that has entered the cover 5 from the outdoor opening 8 of the cover 5 is water at the lower end due to gravity. It is discharged from the hole 9 to the outside. When the entire terminal device is turned by 90 degrees and the eccentric direction of the cover portion 5 is set to the lateral direction as shown in FIGS.
The left or right drainage hole 9 is located at the lower part, and water that has entered through the drainage hole 9 located at the lower part can be drained. If a detachable closing member having a design property is attached to the drainage hole 9, only the necessary drainage hole 9 can be opened and the other drainage holes 9 can be closed and the appearance can be improved. It is not spoiled.
This terminal device can be easily mounted eccentrically in the upward and lateral directions at the construction site according to the conditions of the wall surface 1 to be mounted, the design of the building, and the like. Therefore, unlike the conventional structure shown in FIG. 13, the holding member 23 is not required, and a single terminal having an eccentric width fixed in advance can respond to the situation of various mounting portions, and the manufacturing cost can be reduced. Can be reduced.
In addition, if the outer shell shape of the cover part 5 is configured to be circular or square, even if the entire terminal is turned 90 degrees at the construction site to be eccentric in the vertical direction or the horizontal direction, the design property is not changed and it is convenient. Other functions and advantages are the same as those of the first embodiment.

[0021]

According to the first aspect of the present invention, an eccentric terminal device of a ventilation system having a low exhaust resistance can be obtained.

According to the second aspect of the present invention, the exhaust resistance can be further reduced together with the effect according to the first aspect.

According to the third aspect of the present invention, drainage is possible even if the eccentric direction is set to the vertical direction and the horizontal direction, in addition to the effect according to the first or second aspect.

According to the fourth aspect of the present invention, the design effect is not impaired even if the eccentric direction is set to the vertical direction and the horizontal direction, in addition to the effect according to the third aspect.

According to the fifth aspect of the present invention, it is possible to drain the water even if the eccentric direction is set to the vertical direction and the horizontal direction in the ventilating terminal capable of eccentric mounting.

According to the invention of claim 6, in addition to the effect of claim 5, even if the eccentric direction is set in the vertical direction and the horizontal direction, the design property is not impaired.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a terminal device according to a first embodiment in an attached state.

FIG. 2 is a partially cutaway front view of the terminal device according to the first embodiment.

FIG. 3 is an explanatory diagram showing pressure loss characteristics of the terminal device of the first embodiment and a conventional terminal device.

FIG. 4 is a front view of the terminal device according to the first embodiment.

FIG. 5 is a front view of the terminal device according to the first embodiment.

FIG. 6 is a front view of another terminal device according to the first embodiment.

FIG. 7 is a sectional view of another terminal device according to the first embodiment.

FIG. 8 is a front view of still another terminal device according to the first embodiment.

FIG. 9 is a partially cutaway side view of the terminal device according to the second embodiment.

FIG. 10 is a front view of the terminal device according to the second embodiment.

FIG. 11 is a front view of the terminal device according to the second embodiment.

FIG. 12 is a front view of the terminal device according to the second embodiment.

FIG. 13 is an exploded perspective view of a conventional terminal device.

FIG. 14 is a sectional view of another conventional terminal device.

[Explanation of symbols]

2 duct pipe, 3 mounting tube, 4 outdoor opening, 5 cover, 6 flange, 7 flange,
8 outdoor opening, 9 drain hole, 10 inclined fin, 10a end inclined fin, 12 closed space.

Claims (6)

[Claims] 1. A mounting tube portion fitted and mounted on an outdoor-side opening end of a ventilation system opening on a wall of a building, and an opening portion in front of the outdoor-side opening portion of the mounting tube portion. A ventilation terminal having a cover that covers the cylindrical portion, wherein the opening of the cover is configured to have a plane area larger than that of the outdoor opening of the mounting cylindrical portion, An inward flange is formed at the rim of the opening, and a part of the contour of the opening is circumscribed on the projection plane to a part of the contour of the outdoor opening of the mounting cylinder. Ventilation terminal that is configured to be substantially overlapped. 2. The ventilating terminal according to claim 1, wherein a plurality of inclined fins having an angle protruding inward are provided substantially parallel to an opening of the cover, and the inclined fins are provided in parallel with each other. A ventilation system terminal in which a closed space formed at the intersection of the inclined fin and the flange at the end thereof is set at a position away from the contour of the outdoor opening of the mounting tube. 3. The ventilation terminal according to claim 1, wherein a drain hole is provided at a lower end and on both sides of the cover. 4. The terminal of a ventilation system according to claim 3, wherein the outer shell of the cover is formed in a circular or square shape, and the design is impaired even if the whole is turned by 90 degrees left or right. Not a ventilation terminal. 5. A mounting tube portion fitted and mounted to an outdoor opening end of a ventilation system opening on a wall surface of a building, and an opening portion in front of the outdoor opening portion of the mounting tube portion. A ventilation terminal provided with a cover that covers the cylindrical portion, wherein the cover is mounted on the mounting cylindrical portion at an eccentric position shifted from a center line, and the lower end and both sides of the cover are mounted. Ventilation terminals with drain holes. 6. The terminal of a ventilation system according to claim 5, wherein the outer shell of the cover is formed in a circular or square shape, and the design is impaired even if the whole is turned by 90 degrees left or right. Not a ventilation terminal.