JP2834382B2 - Duct ventilation fan - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan for a duct which is mainly attached to a ceiling of a room or office and is connected to a duct communicating with the outside to exchange air in the room or office.

[0002]

2. Description of the Related Art In recent years, a duct ventilation fan used by burying a main body behind a ceiling and connecting a duct is installed in an opening formed in a ceiling surface. There is an increasing demand for ventilation fans for ducts that can be reliably installed even in such installation situations.

A conventional duct ventilation fan of this type will be described with reference to FIGS. 3 and 4. FIG. As shown in the figure, the main body 101 of the ventilation fan has a box shape, and a suction port 10 is provided on the lower surface.
2 and a discharge port 103 on one side, and a blade 104 inside.
A blower 106 provided with an electric motor 105 to which is fixed is provided, and a grill 108 is attached to the suction port 102 from the room 107 side.

[0004] Further, a connecting portion 1 for communicating and connecting the discharge port 103 of the main body 101 and a duct 109 communicating with the outside.
A mounting plate 111 having 10 is provided.

[0005] In order to install the duct ventilation fan configured as described above on the ceiling surface 112, first, when the ceiling surface 112 is installed on a plurality of ridges 114 provided on the ceiling back 113,
An opening 115 in which the periphery is in contact with a ridge 114A located in the vicinity where the duct ventilation fan is installed is opened in advance, and a wooden frame 116 is fixed to the ridge 114A so as to surround the periphery of the opening 115. Then, the mounting plate 111 is inserted from the opening 115 of the ceiling surface 112 and fixed to the wooden frame 116 with a plurality of wood screws 117, and the duct 118 and the duct connecting portion 110 are fitted and fixed with tape 119 or the like. Next, one side having the discharge port 103 is brought into contact with the mounting plate 111 so that the discharge port 103 and the duct connecting portion 11
The main body 101 is inserted into the opening 115 of the ceiling surface 112 so as to communicate with the main frame 101 and is fixed to the edge 114A and the wooden frame 116 with a plurality of wood screws 120, and the grill 108 is attached to the suction port 102 of the main body 101 and completed. I do. In this way, the duct ventilation fan has been installed.

[0006]

In such a conventional duct ventilation fan, when the duct ventilation fan is installed on the ceiling surface 112, an opening 115 is required to secure the installation strength.
After the opening, the wooden frame 116 must be prepared in advance and provided on the periphery of the opening 115, so that the work is troublesome and the workability is deteriorated.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a ventilation fan for a duct that can be reliably and easily installed on a ceiling surface and can improve workability.

[0008]

In order to achieve the above object, a duct ventilation fan according to the present invention has an opening portion including a first ridge formed in the back of a ceiling and opened to a ceiling surface, and the first ventilation fan includes a first opening. having a first fixing portion and a horizontal flange portion that is suspended by a duct connector and anchor bolt connecting a duct that contacts fixed to the ceiling joist, square tube which is provided to protrude above the ceiling from the opening of the ceiling surface And a second cassette arranged in the cassette at a distance from the first edge.
A second fixing portion which is provided so as to be extendable and contractable so as to be abutted and fixed to a field edge thereof, and a blower which is open at the lower surface and communicates with the duct connection portion, is inserted into the cassette portion and is inserted into the cassette portion.
Comprising a ventilating fan body attached, and a decorative grille which is provided so as to cover the lower surface of the ventilation fan body, the cassette
Can be used as a field edge or anchor bolt
Configuration to that.

[0009]

According to the present invention, the ventilation fan for a duct is installed on the ceiling surface by the above-described structure. After the opening is opened on the ceiling surface, a wooden frame is provided on the periphery of the opening, and the installation strength is not secured. In both cases, if the opening is opened in advance so that the periphery of the first field contacts the edge of the first field, the cassette part is inserted from the opening of the ceiling surface, and the first fixing part is moved to the first field. Attachment is performed by fixing the second fixing portion to a position in contact with the second field edge while fixing the second fixing portion in contact with the edge, and connecting the duct to the duct connection portion. Then, only by inserting and attaching the main body from the opening, the ventilation fan for the duct can be reliably installed. Even when there is no edge, the horizontal flange of the cassette plate is hung by the anchor bolt, and the duct is connected to the duct connection part.
Then, the main body is inserted and fixed through the opening.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, an opening 4 of a ceiling surface 3 provided with a first edge 2 A of a plurality of edges 2 provided on the back of the ceiling 1 is provided so as to be in contact with the periphery thereof. A first fixing portion 5 for abutting and fixing to the first ridge 2A, and a first ridge 2A
Is square tube-shaped cassette part 7 and a second fixing portion 6 abutting fixed to the second ceiling joist 2B which are arranged at an interval and,
The first fixing portion 5 is fixedly abutted on the first ridge 2A by the wood screw 5A, and the second fixing portion 6 is fixed to the wood screw 6D.
To make contact with the second edge 2B so as to stand upright on the ceiling 1. Further, the second fixing portion 6 is provided with a second
A fixing portion 6A provided at one end with a fixing portion 6A for abutting and fixing to the field edge 2B, and a supporting portion 6C for supporting the fixing plate 6B in a stretchable manner toward the second field edge 2B. The first edge 2A and the second edge 2B are provided so as to be adjustable in accordance with the distance between the first edge 2A and the second edge 2B. The cassette section 7 is provided with a duct connection section 8, to which one end of a duct 8A having one end communicating with the outside (not shown) is connected. When there is no edge, the horizontal flange portion 14 is fixed to the long hole 21 of the horizontal flange portion 14 by the nut 15 by the anchor bolt 9 provided on the ceiling back 1. A box-shaped main body 10, which will be described later, has one side surface 10 </ b> A
The main body 10 is provided with a blower 11 therein, and has a guide hole 1 on one side surface 10A corresponding to the discharge port 12 and the female screw portion 16 provided in the cassette portion 7.
7 are provided. Further, the main body 10 has an opening at the lower surface to form a suction port 13. The guide hole 17 is set so that the discharge port 12 communicates with the duct connection section 8 of the cassette section 7.
Are aligned with the female screw portion 16 of the cassette portion 7 and fixed by fixing bolts 18. And body 1
A makeup grill 20 is attached to the suction port 13 of the room 0 from the room 19 side.

In order to install the duct ventilation fan configured as described above on the ceiling surface 3, first, when the ceiling surface 3 is installed on a plurality of ridges 2 provided on the ceiling back 1, the duct ventilation fan is set in advance. In the first field edge 2A located near the place to install,
An opening 4 that is in contact with the periphery thereof is opened, and the cassette 7 is inserted into the back of the ceiling 1 through this opening, and the first fixing portion 5 is inserted.
Is fixed to the first ridge 2A with a wood screw 5A, and the fixing plate 6B of the second fixing portion 6 is fixed to the fixing portion 6A.
Is adjusted to a position where it contacts the second edge, and the second edge 2B
And fixed with wood screws 6D. Then, the duct 8A is fitted into the duct connection portion 8 and fixed with a tape or the like. Next, one side surface 10A of the main body 10 and the cassette portion 7
So that the discharge port 12 and the duct connection portion 8 communicate with each other, and the guide hole 17 and the female screw portion 16 match.
The main body 10 is inserted into the ceiling back 1 through the opening 4 of the ceiling surface 3 and fixed with the fixing bolts 18 to complete the mounting. If there is no margin, an opening 4 is opened in advance near the location where the duct ventilation fan is to be installed, the cassette 7 is inserted into the ceiling 1 from the opening, and the horizontal flange 14 is Is fixed to the long hole 21 by the nut 15. Then, the duct 8A is fitted into the duct connection portion 8 and fixed with a tape or the like. Next, one side surface 10A of the main body 10 and the cassette plate 7 are brought into contact with each other, and
The main body 10 is inserted into the ceiling back 1 through the opening 4 of the ceiling surface 3 and fixed with the fixing bolt 18 so that the duct 2 and the duct connection portion 8 communicate with each other, and the guide hole 17 and the female screw portion 16 match. Installation is completed. As described above, according to the duct ventilation fan of the embodiment of the present invention, when the ventilation fan for duct is installed on the ceiling surface 3, the opening 4 is opened in the ceiling surface 3, and the wooden frame is placed on the periphery of the opening 4. Even if it is not necessary to secure the installation strength, if the opening 4 is opened in advance so that the peripheral edge is in contact with the first edge 2A, the cassette 7 can be moved from the opening 4 of the ceiling surface 3 And insert the first fixing portion 5 into the first ridge 2A.
And the second fixing portion 6 is attached by adjusting and fixing the second fixing portion 6 to a position in contact with the second ridge 2B, and the duct 8A is connected to the duct connecting portion 8.

The main body 10 is inserted into the opening 4, and the lower part thereof is fixed to the first ridge 2A, and one side of the main body 10 is fixed to the cassette portion 7 for mounting. The ventilation fan can be installed reliably.

Further, even when there is no margin, an opening 4 is opened in the ceiling surface 3 near the installation area, and then the cassette 7 is inserted from the opening 4 in the ceiling surface 3 and the horizontal bolt 14 is attached to the anchor bolt 9. By fixing the cassette unit 7 and holding the cassette unit 7, the duct ventilation fan can be reliably installed in the same manner as in the case where the cassette unit 7 is mounted using the edge.

[0015]

As is apparent from the above embodiments, according to the present invention, an opening formed by opening a ceiling surface including a first field edge provided on the back of a ceiling, and the first field is provided. First fixing portion fixed to the edge, duct connection portion, and anchor bolt
A square tube shaped <br/> cassette part having a horizontal flange portion that is suspended by, the first field edge and spacing to the cassette unit
Stretchable fixed to the second ridge lined side by side
Is provided with the fixing portion, even without providing the peripheral edge of the opening providing a crate, it is possible to easily to the ceiling surface, and securely installed, if possible to improve the workability together, corner cassette portion
Hanging by anchor bottle due to its cylindrical shape
If the lowering becomes strong and can be shared by one cassette part
Thus, it is possible to provide a ventilation fan for ducts having such an effect .

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a duct ventilation fan according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a configuration in which the duct ventilation fan is attached with anchor bolts.

FIG. 3 is a sectional view of a conventional ventilation fan for a duct.

FIG. 4 is an exploded perspective view of the ventilation fan for the duct.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling back 2A 1st field edge 2B 2nd field edge 3 Ceiling surface 4 Opening 5 1st fixing part 6 2nd fixing part 7 Cassette part 8 Duct connection part 8A Duct 9 Anchor bolt 10 Main body 11 Blower 14 Horizontal flange

Claims (1)

(57) [Claims] An opening including a first ridge provided on the ceiling and open to the ceiling, and a duct connected to a first fixed portion abutted on the first ridge and a duct. It has a horizontal flange portion that is suspended by the connecting portion and the anchor bolt, with the ceiling surface of the rectangular tube-shaped cassette portion provided to protrude above the ceiling through the opening, the first to the cassette unit 1
Abuts on the second ridge that is juxtaposed with the ridge
A second fixing portion which is provided so as to be extendable and retractable, a blower which has a lower surface opened and communicates with the duct connection portion, and which is inserted into the cassette portion and attached to the cassette portion ; A decorative grill provided to cover the lower surface, and mounting the cassette unit.
A ventilation fan for ducts that can also be used as a field edge or anchor bolt .