JPH0238861B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a ventilation fan for ducts, and particularly relates to a ventilation fan for ducts in which the ventilation fan body is removably attached to a hanging bracket attached to a slab in the ceiling. .

[Conventional technology]

Conventionally, this type of duct ventilation fan has a configuration in which a box-shaped ventilation fan body is inserted from below into a box-shaped casing that is attached to a ceiling board in advance, as shown in Utility Model Application No. 56-66739. are known.

[Problem to be solved by the invention]

In the conventional configuration, the entire weight of the ventilation fan body is supported by the ceiling plate, so it has the disadvantage that a sufficiently strong ceiling plate structure is required. Also,
In order to avoid placing any burden on the ceiling panel, it is necessary to reduce the weight of the ventilation fan body. However, in the conventional configuration in which the box-shaped ventilation fan body is combined with the box-shaped casing, the double box-shaped ventilation fan structure Although this greatly improves strength, it has the disadvantage of increased weight.

Furthermore, if the casing is box-shaped, it is possible to attach the casing to the ceiling board, but it is difficult to attach the casing directly to the slab of the house, and once it is attached, it is difficult to access the duct piping attachment part from the inside of the casing to the outside. This has the disadvantage that the casing cannot be replaced or the mounting condition cannot be adjusted unless the ceiling panel is removed.

The present invention was made in view of the above-mentioned drawbacks, and its purpose is to provide a hanging fitting on the slab in the ceiling in place of the box-shaped casing, and to attach the ventilation fan body to this hanging fitting to reduce the weight of the ventilation fan. To provide a ventilation fan for a duct, which allows the slab to exclusively receive the air, adjusts the position and inclination of the hanging fitting with respect to the slab from the inside of the hanging fitting, and reduces the weight of the hanging fitting.

[Means to solve the problem]

The object of the present invention is to provide a hanging metal fitting attached to a plurality of hanging bolts fixed to a slab in the ceiling;
A ventilation fan body that can be put in and taken out from an opening provided in a ceiling plate disposed downwardly on the slab at intervals, and that can be attached to the hanging bracket through the opening, and a ventilation fan body that can be detachably attached to the lower surface of the ventilation fan body. In the duct ventilation fan, which is attached to the fan and includes a decorative cover that covers the opening, the hanging fittings include a top plate and a mounting hole provided on both sides of the top plate, into which the hanging bolt fits. a first support plate that hangs down from the side of the upper plate on which the attachment piece is not provided, and a first support plate that is opposite to the first support plate and that a second support plate hanging down from the side where no piece is provided; the ventilation fan body is provided with an exhaust hole that connects to at least a duct joint provided on the first support plate; This is achieved by attaching and detaching the ventilation fan main body to the support plate and the second support plate using fasteners that are detachable from below the ceiling plate.

[Effect]

The weight of the hanging fittings and ventilation fan body is supported by the slab via hanging bolts. Therefore, the ceiling board will not sag or the ceiling will not fall due to the weight of the hanging fittings or the ventilation fan itself.

The hanging fixture has a structure in which there is no side plate between the first support plate and the second support plate.
In other words, since the box-shaped casing has a structure in which two opposing side panels are removed, it is lightweight. Therefore, the work of attaching the hanging fitting to the hanging bolt becomes easy.

When inspecting or repairing the inside of the ventilation fan after attaching the ventilation fan to the hanging bracket and installing the ceiling board, removing the decorative cover and fasteners may result in the removal of the ceiling board or damage to the ceiling board. The ventilation fan body can be pulled out from the opening in the ceiling board and placed on the floor without having to do anything. Therefore, inspection and repair work inside the ventilation fan body becomes easier.

When adjusting the vertical position of the hanging bracket or the inclination of the hanging bracket, remove the ventilation fan body from the hanging bracket, reach from inside the bracket to the hanging bolt side through the opening in the ceiling board, and then adjust the hanging bracket. All you have to do is change the mounting condition of the mounting piece and hanging bolt. The work of installing the mounting piece of the hanging fitting and the hanging bolt was done by providing the first support plate with the duct joint on the side of the upper plate where the mounting piece was not provided.
This can be done without being hindered by the duct joint and the exhaust duct connected to the duct joint.

〔Example〕

Hereinafter, one embodiment of the present invention will be explained in detail using FIGS. 1 to 4.

In FIGS. 1 and 2, a plurality of hanging bolts 2,
Fix 2a. A hanging fitting 4 made of a steel plate is attached to the hanging bolts 2, 2a using nuts 3, 3a, 3b, 3c.

The hanging fitting 4 is attached to the upper plate 5 as shown in FIG.
The mounting pieces 7, 7a are provided on both sides of the top plate 5 and have elongated mounting holes 6, 6a into which the hanging bolts 2, 2a fit. A first support plate 9 that hangs down from the side 5a where the pieces 7, 7a are not provided, and has a duct joint 8 integrated by means such as welding; It also has a second support plate 10 that hangs down from the other side 5b of the upper plate 5 where the mounting pieces 7, 7a are not provided. Upper plate 5
The first support plate 9 and the second support plate 10 are integrated by means such as welding. The duct joint 8 is provided with a rotatable shutter plate 8a.

The ventilation fan main body 12 is box-shaped, as shown in FIG. The side surface of the ventilation fan main body 12 is provided with an exhaust hole 13 and slide guide frames 14 and 15 into which the first support 9 of the hanging fitting 4 is fitted. The ventilation fan main body 12 includes a fan motor and a fan casing, as shown by the dotted line in FIG.

A positioning piece 9 is integrally provided at the lower end of the first support plate 9 of the hanging fitting 4. This positioning piece 9 is used for positioning the nuts 3, 3a, 3b, 3c for fixing the hanging fittings 4 to the hanging bolts 2, 2a by making them come into contact with the lower surface of the mounting wooden frame 18. A flange 12b is provided at the lower end of the ventilation fan main body 12.
are provided in one piece. The flange 12b is used for positioning the exhaust hole 13 and the duct joint 8 by abutting against the lower surface of the positioning piece 9.

The exhaust hole 13 is connected to the flange 12 of the ventilation fan main body 12.
When b is brought into contact with the positioning piece 9a of the hanging fitting 4, it continues facing the duct joint 8. At the bottom of each of the first support plate 9 and the second support plate 10,
Screw holes 11 and 11a are provided. The ventilation fan body 12 is provided with a mounting hole 16 which faces the screw holes 11, 11a when the flange 12b of the ventilation fan body 12 is brought into contact with the positioning piece 9a of the hanging fitting 4.

Below the slab 1 in the attic, a ceiling board 17 is installed at a distance from the slab 1, and a mounting wooden frame (wild edge) 1 is installed.
It is arranged by attaching it to 7b. The ceiling plate 17 is provided with an opening 17a for attaching the ventilation fan body 12 to the hanging fitting 4 and for taking it in and out.

The ventilation fan main body 12, the first support plate 9, and the second support plate 10 have fasteners 18, 18a such as thumbscrews,
It is mounted by screwing into the screws 11 and 11a from below the ceiling plate 17 through the mounting holes 16.
The opening 17a of the ceiling plate 17 is covered with a decorative cover 19 such as a grill. The decorative cover 19 is attached to the ventilation fan body 12 using screws 20 to a mounting arm (not shown) fixed to the fan casing within the ventilation fan body 12.

In the above configuration, the installation work of the duct ventilation fan will be explained below.

First, after fitting the hanging bolts 2, 2a of the slab 1 into the mounting holes 6, 6a of the hanging fitting 4, use the nuts 3, 3a, 3b, 3c to tighten the mounting pieces 7, 7a.
Attach to the hanging bolts 2, 2a. In that case, reach upward from below the hanging bracket 4 between the first support plate 9 and the second support plate 10 and adjust the positions of the nuts 3, 3a, 3b, 3c. Vertical position of and hanging bracket 4
At the same time, the exhaust duct arranged below the slab 1 and the duct joint 8 are connected.

Next, the ceiling plate 17 is attached to the mounting wooden frame 18, and the ceiling plate 17 has an opening 17a for attaching the ventilation fan main body 12 to the hanging bracket 4.
will be established.

Next, slide guide frame 1 of ventilation fan main body 12
4 and 15, the ventilation fan main body 12 is moved upward through the opening 17a of the ceiling board 17 until the flange 12b of the ventilation fan main body 12 comes into contact with the positioning piece 9a of the hanging bracket 4. Push it into. Thereafter, the fasteners 18 and 18a are inserted into the screw holes 1 of the first support plate 9 from below the opening 17a of the ceiling plate 17.
The ventilation fan main body 12 is attached to the hanging fitting 4 by screwing into the screw holes 11a of the first and second support plates 10 through the mounting holes 16 of the ventilation fan main body 12. At this time, if the vertical positional relationship between the ceiling board 17 and the ventilation fan main body 12 is not appropriate, remove the ventilation fan main body 12 from the hanging bracket 4, and
The first support plate 9 and the second support plate 10 are
Stretch your hand upwards between Natsuto 3, 3a,
By adjusting the positions of 3b and 3c, the mounting position of the hanging fitting 4 is corrected, and the vertical positional relationship between the ceiling plate 17 and the ventilation fan body 12 is made appropriate.
In this embodiment, the flange 12b of the ventilation fan main body 12
is placed in close contact with the mounting wooden frame 17b via the positioning piece 9a of the first support plate 9.

Finally, all the installation work is completed by attaching the decorative cover 19 to the ventilation fan main body 12 with screws 20.

After all installation work is completed, if it becomes necessary to remove the ventilation fan main body 12 for inspection or repair, remove the decorative cover 19 from the ventilation fan main body 12 and then remove the fasteners 18, 18a. Therefore, without removing the ceiling board 17 or destroying the ceiling board 17,
The ventilation fan body 12 can be easily pulled out from the opening 17a of the ceiling plate 17. Therefore, the ventilation fan main body 12 can be inspected and repaired easily.

In this embodiment, the hanging fitting 10 has a structure in which two opposing side plates of a box-shaped casing are removed. In other words, since the structure is such that there is no side plate between the first support plate 9 and the second support plate 10, the material cost can be reduced and the weight can be reduced. If the hanging bracket 4 becomes lighter, attach the hanging bracket 4 to the hanging bolts 2, 2a.
The installation work becomes easier.

In this embodiment, the weight of the hanging fitting 4, ventilation fan main body 12, and decorative cover 19 is
Since I am trying to receive slab 1 through
The ceiling plate 17 will not sag or fall due to the weight of the ventilation fan body 12 and the like.

Furthermore, in this embodiment, the mounting piece 7 of the upper plate 5,
Since the first support plate 9 having the duct joint 8 is provided on the side 5a where the duct joint 7a is not provided, the work of installing the mounting pieces 7, 7a and the hanging bolts 2, 2a is performed on the duct joint 8 and the duct joint 8. This can be done without being hindered by the connected exhaust duct.

In the present embodiment described above, a duct ventilation fan of single exhaust type has been described, but by providing the second support plate 10 with a duct joint, it can also be used for a two-room ventilation fan (parent-child fan).

〔Effect of the invention〕

According to the present invention, (a) Since the weight of the hanging fittings and the ventilation fan body is supported by the slab via the hanging bolts, the ceiling board may sag or fall due to the weight. Never.

(b) The hanging fitting has a structure in which the two opposing side plates of the box-shaped casing have been removed, reducing the weight and making it easier to attach it to the hanging bolt fixed to the slab.

(c) With the ventilation fan body removed, if you reach the hanging bolt side from inside the hanging bracket through the opening in the ceiling plate, you can reach it without being obstructed by the duct joint and the exhaust duct connected to the duct joint. The vertical mounting position of the hanging fitting and the inclination of the hanging fitting can be easily adjusted.

(d) Attach the ventilation fan body to the hanging bracket, and
Even after the ceiling board is installed, by removing the decorative cover and fasteners, the ventilation fan body can be pulled out from the opening in the ceiling board without removing or damaging the ceiling board.
To obtain a ventilation fan for a duct which has the effect that inspection and repair inside the ventilation fan body can be easily performed.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the installed state seen from the duct joint side, and FIG.
FIG. 3 is a side view of the installation state seen from the direction of arrow P in the figure, FIG. 3 is an external perspective view of the hanging fittings seen from above, and FIG. 4 is an external perspective view of the ventilation fan main body seen from above. 1... Slab, 2... Hanging bolt, 4... Hanging fitting, 6, 6a... Mounting hole, 7, 7... Mounting piece,
8... Duct joint, 9... First support, 10...
Second support plate, 11, 11a... screw hole, 12...
Ventilation fan body, 12a...Top surface, 13...Exhaust hole,
16... Mounting hole, 17... Ceiling plate, 17a... Opening, 18, 18a... Fastener, 19... Decorative cover.

Claims (1)

[Claims] 1. A hanging fitting 4 attached to a plurality of hanging bolts 2, 2a fixed to a slab 1 in the attic, and a ceiling plate 17 arranged at intervals below the slab 1. It can be put in and taken out from the provided opening 17a,
and a ventilation fan main body 12 that can be attached to the hanging fitting 4 through the opening 17a, and a front ventilation fan main body 12.
and a decorative cover 19 that is detachably attached to the lower surface of the housing and covers the opening 17a, and the hanging fittings 4 are provided on the upper plate 5 and on both sides of the upper plate 5, and the hanging bolts are provided on both sides of the upper plate 5. mounting pieces 7, 7a provided with mounting holes 6, 6a into which the parts 2, 2a fit, and the mounting piece 7 of the upper plate 5;
a first support plate 9 hanging down from the side 5a not provided with the mounting piece 7a; The ventilation fan main body 12 includes at least the first support plate 10.
An exhaust hole 13 is provided that connects to the duct joint 8 provided on the support plate 9, and the ventilation fan main body 12 can be attached to and detached from the first support plate 9 and the second support plate 10 from below the ceiling plate 17. fastener 18,
A ventilation fan for a duct, characterized in that the ventilation fan is detachably attached to the duct.