JP3256378B2 - Ceiling 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 ceiling fan having a structure in which a main body is suspended by anchor bolts via suspension fittings.

[0002]

2. Description of the Related Art A ceiling fan of this type is known, for example, from Japanese Utility Model Application Laid-Open No. 62-162541. As shown in FIG. 13, a pair of anchor bolts 1, 1 provided in a suspended state above the ceiling, a horizontal piece 2a and a vertical piece 2b extending downward from the horizontal piece 2a.
And a main body 3 in which a blower (not shown) is disposed inside a rectangular box-shaped case. The metal fitting 2 is attached and fixed to the anchor bolt 1 by tightening nuts 5 and 5 in a state where the insertion hole 4 formed in the horizontal piece 2 a is inserted into the anchor bolt 1, and the main body 3 is provided inside the side surface 3 a thereof. Are screwed into mounting holes 7 formed in the vertical pieces 2b of the hanging brackets 2 to be fixedly attached to the hanging brackets 2, 2.

Here, in the hanging bracket 2, the horizontal piece 2
The angle θ1 formed between the vertical axis portion a and the vertical piece 2b is set to 90 °. In addition, the hanging bracket 2 is provided with a hook 2c for controlling the position where the upper part of the main body 3 is hooked.

However, when the ceiling ventilation fan having such a configuration is first installed, before the ceiling plate 8 is attached, the hanging metal fittings 2 are vertically attached to the two opposite side surfaces 3a of the main body 3. The hanging fittings 2 and 2 are attached to the main body 3 by screwing the screws 6 into the mounting holes 7 from the inside of the main body 3 with the hook 2c hooked on the upper part of the main body 3 while the piece 2b is being addressed. And lift the main body 3,
With the insertion hole 4 in the horizontal piece 2a of each hanging bracket 2 inserted through the lower end of the anchor bolt 2, the nuts 5, 5
The hanging metal fittings 2 are attached and fixed to the anchor bolts 1 by means of. In this case, when the parallelism of the anchor bolts 1 and 1 is incomplete, there is a problem that this must be corrected and corrected one by one. This allows the main body 3 to be installed above the ceiling in a state where the main body 3 is suspended by the anchor bolts 1 and 1 via the suspension fittings 2 and 2. Thereafter, the ceiling plate 8 is attached so as to avoid the main body 3 and a decorative frame (not shown) is attached so as to cover the lower surface of the main body 3.

[0005] On the other hand, when performing maintenance and inspection of the main body 3, the screws 6 and 6 are inserted from the inside of the main body 3 with the decorative frame removed.
By disconnecting 6, the connection between the main body 3 and the hanging brackets 2, 2 is released, and the main body 3 is lowered from behind the ceiling, and the inspection and the like are performed.

When the main body 3 is to be reattached after the main body 3 is inspected or the like, the main body 3 is first lifted and inserted between the vertical pieces 2b, 2b of the hanging fittings 2, 2. The main body 3 is shifted upward until the upper part of the hook 3 is hooked on the hooks 2c, 2c of the hanging brackets 2, 2. In this state, while supporting the main body 3, the screws 6 are inserted from the inside of the main body 3 into the respective vertical piece portions 2.
Screw into the mounting hole 7 of b. Thereby, the main body 3 can be attached to the anchor bolts 1, 1 via the suspension fittings 2, 2. Thereafter, the work is completed by attaching the decorative frame to the lower surface of the main body 3.

[0007]

In the above-mentioned conventional configuration, when the main body 3 is inspected or the like and then the main body 3 is attached again, the following problems may occur. First, the anchor bolts 1 and 1 behind the ceiling are not necessarily provided in a vertical state. For example, as shown by a two-dot chain line in FIG. There is a case where it is provided in an oblique state away from 3. In such a case, when the main body 3 is inserted between the hanging brackets 2 and 2 and the main body 3 is to be fixed to the hanging bracket 2 with the screws 6, the right side surface 3 a of the main body 3 and the right side Vertical piece 2b of metal fitting 2
(Refer to the two-dot chain line).
Cannot be screwed into the mounting hole 7 of the vertical piece 2b, and as a result, the main body 3 may not be able to be mounted on the hanging bracket 2.

When the main body 3 is lowered from the space between the hanging brackets 2 and 2 or inserted between them, the side surface 3a of the main body 3 is damaged by the edge 9 at the lower end of the vertical piece 2b. There is a risk that it will. Since the case of the main body 3 is generally made of a painted steel plate, if the paint is peeled off, it causes rust.

Therefore, an object of the present invention is to allow the main body to be easily and reliably attached to the hanging bracket when the main body is once detached and then reattached, and that the main body can be hardly damaged, It is an object of the present invention to provide a ceiling ventilation fan that can easily perform the mounting work.

[0010]

According to the first aspect of the present invention, there is provided a pair of anchor bolts provided in a suspended state above the ceiling, a horizontal piece, and a vertical piece extending downward from the horizontal piece. A pair of hanging brackets, each of which has a horizontal piece attached and fixed to each of the anchor bolts so that the vertical pieces face each other, are disposed in an inserted state between these hanging fittings, and the pair of opposed side surfaces is A ceiling fan provided with a main body fixed to the vertical piece by screws and suspended from the anchor bolts via hanging brackets, wherein the main body has a rectangular box shape.
The anchor bolts are located at four corners of the body.
Corresponding to two opposite corners of a pair of
The hanging bracket is disposed at a position, and the vertical piece abuts.
A position in contact with a side surface adjacent to the pair of opposed side surfaces of the main body;
It is characterized in that it has a configuration in which it has a fixed piece portion and an expanded portion whose tip is bent outward below the vertical piece portion.

In this case, the hanging bracket is in a free state.
The angle between the horizontal and vertical pieces is greater than 90 °
It is preferable to set the following (claim 2).

Further, a temporary holding piece protruding toward the other side is provided on one side of the vertical piece of the hanging bracket and the side surface of the main body contacting the vertical piece, and the temporary holding piece is provided on the other side. It is preferable to form a temporary holding hole for temporarily holding the main body to the hanging bracket by engaging with the one part.
3 ).

[0013]

According to the ceiling ventilation fan of the first aspect, each of the hanging brackets fixed to the anchor bolt has a rectangular box shape.
Parts corresponding to the two opposite corners of the main body to be formed
The hanging bracket has a vertical piece
Positioning piece that abuts the side next to the side of the body that touches
After removing the main body once, take it again.
When inserting the main unit between the hanging brackets,
The two adjacent sides of the vertical bracket and the position of each hanging bracket
Abuts on the fixed piece, and beside the body by two hanging brackets
Direction positioning is performed. Therefore, the main body is suspended
Easy positioning of the body when inserting between
I can .

[0014] Further, since an extended portion whose tip is bent outward of the main body is provided at a lower portion of the vertical piece of the hanging metal, the main body is raised or lowered with respect to the hanging metal. At this time, it is possible to prevent the side surface of the main body from being damaged by the hanging bracket as much as possible.

According to the ceiling ventilation fan of the second aspect, the anchor
-Each hanging bracket fixed to the bolt is free
The angle between the horizontal and vertical pieces is greater than 90 °
It is set as follows.
When the main body is removed from the hanging bracket, it is facing
Each of the vertical pieces protrudes toward each other.
For this reason, the anchor bolt is slightly shifted from the vertical
Even if it has been
When inserted between the vertical pieces of the hanging bracket,
And the side of the main body are always in contact with each other.
Securely connect the side and the vertical piece of the hanging bracket with screws
Can be

According to the third aspect of the present invention, when the main body is inserted between the hanging brackets so that the main body is once detached and then attached again, the temporary holding piece portion and the temporary holding hole engage with each other. Since the main body can be temporarily held by the hanging bracket, there is no need to continuously support the main body, and the mounting operation using screws can be easily performed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first reference for understanding the present invention.
An example will be described with reference to FIGS. First, in FIG. 2 showing an installed state, a pair of anchor bolts 1 are shown.
Reference numerals 1 and 11 are provided in a suspended state behind the ceiling. As shown in FIG. 3, each of the pair of hanging brackets 12 has an inverted L-shape having a horizontal piece 13 and a vertical piece 14 extending downward from the horizontal piece 13. As shown in FIG. 1, the hanging bracket 12 is set such that the angle θ2 between the horizontal piece 13 and the vertical piece 14 in the free state is larger than 90 ° by α (θ2 = 90 °). + Α). In the present embodiment, by setting α to about 10 °, θ2
Is set to be about 100 °.

An insertion hole 15 is formed in the horizontal piece 13 of each suspension fitting 12 so as to be inserted into the lower end of the anchor bolt 11. Further, a hook 16 for position control for determining the position of a main body, which will be described later, is formed in the vertical piece portion 14 by cutting and raising, and a mounting hole 17 is formed in an intermediate portion in the vertical direction. A curl portion 18 that is curved downward is provided as an expanded portion whose 18a is bent outward.

Each of the hanging members 12 is horizontally moved by a pair of upper and lower nuts 19, 19 screwed to the anchor bolt 11, with the lower end of the anchor bolt 11 being inserted into the insertion hole 15 of the horizontal piece 13. The piece 13 is sandwiched and fixed to the anchor bolt 11.

The main body 20 is constructed by disposing a blower (not shown) inside a case 21 made of a painted steel plate having a rectangular box shape. The lower surface of the case 21 of the main body 20 is open, and the hanging bracket 1 is provided on the left and right sides of the upper surface.
A concave hooking portion 22 on which the second hook 16 is hooked is formed, and a screw insertion hole 23 corresponding to the mounting hole 17 is formed in a predetermined portion of the two opposing side surfaces 21a. A flange 24 is provided on the periphery of the opening of the portion. Reference numeral 25 denotes a screw for connecting and fixing the main body 20 and the suspension fitting 12.

A ceiling plate 26 is attached to the ceiling so as to avoid the main body 20, and a decorative frame (not shown) is attached to the lower surface of the main body 20.

However, when the ceiling ventilation fan having such a configuration is first installed, before the ceiling plate 26 is attached, the hanging brackets are attached to the two opposite side surfaces 21 a of the case 21 of the main body 20. 12, the screw 25 is screwed into the mounting hole 17 from the inside of the case 21 through the screw insertion hole 23 while the hook 16 is hooked on each hook portion 22. Attach the hanging brackets 12 to 20.

Then, the main body 20 is lifted, and the nuts 19, 1 are inserted with the insertion holes 15 in the horizontal pieces 13 of the hanging brackets 12 inserted into the lower ends of the anchor bolts 11.
9 attaches and suspends each hanging metal fitting 12 to the anchor bolt 11. As a result, the main body 20 can be suspended from the hanging bracket 1.
It can be installed above the ceiling in a state where it is suspended by the anchor bolts 11, 11 via the anchor bolts 2, 12. Thereafter, the ceiling plate 26 is attached in a form avoiding the main body 20, and
A decorative frame (not shown) is attached so as to cover the lower surface of the main body 20.

On the other hand, when the maintenance and inspection of the main body 20 are performed, the screws 25 and 25 are removed from the inside of the case 21 with the decorative frame removed.
Disconnect the connection with 2, 12 and lower the main body 20 from above the ceiling. Inspection and the like are performed with the main body 20 lowered in this manner.

When the main body 20 is to be reattached after the main body 20 has been inspected or the like, the main body 20 is first lifted, and as shown by a solid line in FIG. The main body 20 is slightly tilted so as to be located inside the vertical piece 14 of the right hanging bracket 12. From this state, while pushing the right vertical piece portion 14 to the right with the main body 20, the main body 20 is pushed as shown by a two-dot chain line in FIG.
The main body 20 is placed in a substantially horizontal state such that the upper portion on the left side of the main body 20 is positioned inside the vertical piece 14 of the left hanging bracket 12. Thereafter, the main body 20 is displaced upward until the hooks 22 are hooked on the hooks 16 while the side surfaces 21 a of the case 21 are in contact with the vertical pieces 14.

In this state, while supporting the main body 20, the screws 25 are inserted from the inside of the case 21 into the mounting holes 17 of the vertical pieces 14.
(See Fig. 2). Thereby, the main body 20 can be attached to the anchor bolts 11, 11 via the suspension fittings 12, 12. Thereafter, the work is completed by attaching the decorative frame to the lower surface of the main body 20.

Here, as shown in FIG. 4, for example, when the right anchor bolt 11 is provided in an oblique state slightly away from the main body 20 (anchor bolt 1).
1 and the anchor bolt installation surface 27 make an angle θ3 of 90
°), each hanging bracket 12
Is the angle θ2 between the horizontal piece 13 and the vertical piece 14 in the free state.
Is set to be larger than 90 °, the main body 20 is inserted when the main body 20 is inserted between the vertical pieces 14, 14.
The side surface 21a of the case 21 in the vertical piece portion 14,
14 is reliably brought into contact. Therefore, the side surface 21 a of the case 21 and the vertical piece 14 of the hanging bracket 12 can be reliably connected by the screw 25.

According to a first reference example described above, lower bracket 12 hanging each fixed attached to the anchor bolt 11,
In the free state, the angle θ2 between the horizontal piece 13 and the vertical piece 14 is 9
Since it is set to be larger than 0 °, the main body 2
The main body 20 is suspended from the hanging fittings 12,
In the state removed from 2, each of the vertical pieces 14,
14 project from each other (see FIG. 1).
reference). For this reason, even if the anchor bolt 11 is slightly deviated from the vertical state, the vertical pieces 14, 14 of the hanging bracket 12 are required to re-attach the main body 20.
When inserted between the vertical piece 14 and the side 21 a of the case 21 of the main body 20, the side 21 a of the case 21 and the vertical piece 14 of the hanging bracket 12 are screwed together. The connection can be made more reliably by the
Can be easily and reliably attached.

A lower end of the vertical piece 14 has a tip 18.
When the main body 20 is raised and lowered with respect to the hanging brackets 12 and 12, the side surface of the case 21 of the main body 20 is lifted by the hanging brackets 12 because the curl portion 18 is bent outward of the main body 20. 21a can be prevented as much as possible. Therefore, case 2 made of painted steel plate
1 can be prevented from peeling off as much as possible.

FIGS. 5 and 6 are views for understanding the present invention.
And shows a second reference example, the second reference example is different from the following points from the first reference example described above. That is, the expanded portion 28 of the hanging bracket 12 is formed in a flat plate shape instead of the curled portion 18. This expanded portion 28
Is directed outwardly away from the main body 20 toward the distal end portion 28a. In addition, as the hanging bracket 12, FIG.
As shown in FIG. 5, when the horizontal piece 13 is in the horizontal state, the distal end portion 28a of the expanding portion 28 projects outward by a dimension A from the bending point 29 between the horizontal piece 13 and the vertical piece 14. Is formed.

In such a second reference example , the first reference
In addition to being able to obtain the same operation and effect as the reference example , there are the following advantages. That is, after the main body 20 is inspected or the like, when the main body 20 is inserted between the hanging brackets 12 to reattach the main body 20, the expanding portions 28, 28
Are open in a C-shape, and
Since the distance between the distal end portions 28a of the upper and lower parts 8 and 28 is set to be slightly larger than the width dimension of the main body 20, the main body 20 is suspended from the vertical pieces 14 and 1 of the hanging fittings 12 and 12.
There is an advantage that it can be easily inserted between the four.

[0032] Figures 7 and 8 are those showing a first embodiment of the present invention, the first embodiment is different from the following points from the first and second reference example described above. That is, the two anchor bolts 11 are connected to the main body 2 having a rectangular box shape.
Of the four corners 21b of the zero case 21, the hanging bracket 29 is attached to each of the anchor bolts 11 at a position corresponding to a pair of two opposite corners 21b.

As shown in FIG. 8, the hanging bracket 29 includes a horizontal piece 30, a vertical piece 31 provided so as to extend downward from the horizontal piece 30, and one of the vertical pieces 31. The positioning piece 32 provided on the side part, and the expanding part 33 provided below the vertical piece 31 and the positioning piece 32 are integrally provided. Of these, horizontal part 3
0 has an insertion hole 15 to be inserted into the anchor bolt 11, and the vertical piece portion 31 has a hook 16 at an upper portion and a mounting hole 17 at a lower portion. The angle formed between the horizontal piece 30 and the vertical piece 31 is set to about 100 ° as in the first embodiment, and the angle formed between the vertical piece 31 and the positioning piece 32 is 90 °.
° is set.

In the case 21 of the main body 20, the hook portion 22 hooked on the hook 16
Is formed near the corner portion 21b.

Thus, in the first embodiment, the main body 20 comprises two adjacent side surfaces 21a, 21a of the case 21.
1a is a vertical piece 31 and a positioning piece 3 of each hanging bracket 29.
2 and is attached to the hanging fittings 29, 29 in a state of contact with the hanging fittings 2. Therefore, in this case, in FIG.
The position of arrow 0 in the direction of arrow A is regulated by the vertical pieces 31, 31, and the position of arrow B in the direction of arrow B is determined by the positioning pieces 32, 31.
32.

The first embodiment has the following advantages in addition to the same effects as those of the first and second embodiments . That is, the main body 2
0, etc., the main body 20 is inserted between the hanging brackets 29, 29 in order to mount the main body 20 again.
Adjacent two side surfaces 21a, 2 of the case 21 in FIG.
1a is a vertical piece 31 and a positioning piece 3 of each hanging bracket 29.
2 and the horizontal positioning of the main body 20 is performed by the two hanging brackets 29, 29, so that when the main body 20 is inserted between the hanging brackets 29, 29, the horizontal positioning of the main body 20 is performed. Can be easily performed.

[0037] FIGS. 9 to 11, is shown a second embodiment of the present invention, the second embodiment, the second described above
The following points are different from the reference example . That is, the second participant
In the vertical piece part 14 of the hanging metal fitting 12 in the example, a temporary holding piece part 34 protruding toward the main body 20 is provided obliquely upward by being cut and raised so as to be located above the screw insertion hole 23. Further, a temporary holding hole 35 that engages with the temporary holding piece 34 is provided on the side surface 21 a of the case 21 in the main body 20.

According to the second embodiment, after the main body 20 is inspected or the like, when the main body 20 is inserted between the hanging brackets 12 to mount the main body 20 again, as shown in FIG. The temporary holding hole 35 on the main body 20 side is
By engaging the temporary holding piece 34 on the second side, the main body 2
0 can be temporarily held by the hanging bracket 12.

When the screw 25 for mounting the main body 20 is screwed into the mounting hole 17 on the hanging bracket 12 side, the main body 20 is locked until the hook 22 of the main body 20 is hooked on the hook 16 as shown in FIG. Is lifted up so that the screw insertion hole 23 and the mounting hole 17 are aligned, and the screw 25 is screwed into the mounting hole 17 in this state.

According to the second embodiment, the second reference
In addition to the functions and effects obtained by the example, there are the following advantages. That is, when the main body 20 is attached to the hanging bracket 12, the main body 20 can be temporarily held by the hanging bracket 12, so that it is not necessary to continuously support the main body 20, and the mounting operation with the screw 25 can be easily performed. Will be able to

[0041] FIG. 12 shows a third embodiment of the present invention, the third embodiment is different from the following points from the second embodiment described above. That is, a bent portion 36 is provided integrally with the tip of the temporary holding piece 34 so as to be substantially parallel to the vertical piece 14 or to face the vertical piece 14.
In the case of such a configuration, when the main body 20 is raised and lowered with respect to the hanging bracket 12, it is possible to prevent the front end portion of the temporary holding piece portion 34 from damaging the side surface 21 a of the case 21 of the main body 20 as much as possible. Can be.

In the second and third embodiments, the temporary holding piece may be provided on the case 21 side of the main body 20 and the temporary holding hole may be provided on the vertical piece 14 side of the hanging bracket 12. In this case, the temporary holding piece is formed obliquely downward.

The present invention is not limited to the embodiments described above. For example, the case 21 of the main body 20 is not limited to a painted steel plate, and may be made of a synthetic resin. It can be carried out by appropriately modifying within.

[0044]

According to the ceiling ventilation fan of the first aspect, each of the hanging fittings fixed to the anchor bolt is rectangular.
At a pair of two opposite corners of a box-shaped body
It is located at the corresponding site, and it is
Is the side adjacent to the pair of opposing side surfaces of the main body with which the vertical piece contacts
Since the positioning piece that comes into contact with the surface is provided,
After removing the body, suspend the main body to attach it again
When inserting between the components, the two adjacent sides of the body
Abut the vertical piece and the positioning piece of the hanging bracket,
The horizontal position of the main body is made by the lowering bracket.
As a result, the main body can be easily positioned .

Further, since an expanded portion whose tip is bent outwardly of the main body is provided at the lower portion of the vertical piece, the lifting of the main body with respect to the hanging bracket can be prevented. It is possible to prevent the side surface of the main body from being damaged by the lowering bracket as much as possible.

According to the ceiling ventilation fan of the second aspect, the anchor
-Each hanging bracket fixed to the bolt is free
The angle between the horizontal and vertical pieces is greater than 90 °
It is set as follows.
When the main body is removed from the hanging bracket, it is facing
Each of the vertical pieces protrudes toward each other.
For this reason, the anchor bolt is slightly shifted from the vertical
Even if it has been
When inserted between the vertical pieces of the hanging bracket,
And the side of the main body are always in contact with each other.
Securely connect the side and the vertical piece of the hanging bracket with screws
Can be

According to the third aspect of the present invention, the temporary holding piece and the temporary holding hole are engaged when the main body is inserted between the hanging brackets so that the main body is once detached and then attached again. Since the main body can be temporarily held by the hanging bracket, there is no need to continuously support the main body, and the mounting operation using screws can be easily performed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a first reference example for understanding the present invention, showing a state in which a main body is once removed and then attached again.

FIG. 2 is a longitudinal sectional side view showing an installation state of a main body.

FIG. 3 is a perspective view of a hanging bracket.

FIG. 4 is a longitudinal sectional side view in a state where an anchor bolt is provided diagonally.

FIG. 5 is a diagram corresponding to FIG. 1, showing a second reference example for understanding the present invention;

FIG. 6 is a side view of a hanging bracket.

FIG. 7 is a cross-sectional plan view of the installed state showing the first embodiment of the present invention.

FIG. 8 is a perspective view of a hanging bracket.

FIG. 9 is a side view of a hanging bracket according to a second embodiment of the present invention.

FIG. 10 is a longitudinal sectional side view of a main part in a state where the main body is temporarily held by a hanging bracket.

FIG. 11 is an equivalent view of FIG. 10 when tightening a screw;

FIG. 12 is a longitudinal sectional side view of a main part showing a third embodiment of the present invention.

FIG. 13 is a diagram corresponding to FIG. 1 showing a conventional configuration.

[Explanation of symbols]

11 is an anchor bolt, 12 is a hanging bracket, 13 is a horizontal piece, 14 is a vertical piece, 17 is a mounting hole, 18 is a curled portion (expanded portion), 18a is a tip portion, 20 is a main body, 21 is a case. ,
28 is an expanded portion, 28a is a tip portion, 29 is a hanging bracket, 3
0 is a horizontal piece, 31 is a vertical piece, 32 is a positioning piece, 33
Is an expanded portion, 34 is a temporary holding piece portion, 35 is a temporary holding hole, and 36 is a bent portion.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 7/10 101 F24F 1/00 426

Claims (3)

(57) [Claims] A pair of anchor bolts provided in a suspended state above the ceiling, a horizontal piece, and a vertical piece extending downward from the horizontal piece;
A pair of hanging brackets, each of which has a horizontal piece attached and fixed to each of the anchor bolts, and arranged so that the vertical pieces face each other; and A ceiling ventilator comprising: a main body fixed to a vertical piece by screws and suspended from the anchor bolts via hanging brackets, wherein the main body has a rectangular box shape, and the anchor bolts are
A pair of opposing two of the four corners of the body
Is disposed at a position corresponding to the corner of the
The tool is adjacent to a pair of opposing side surfaces of the main body with which the vertical pieces abut.
A ventilation fan for a ceiling, characterized in that it has a positioning piece that abuts against a side surface of the ceiling, and has an expanded portion with a tip bent outward at a lower portion of the vertical piece. 2. The hanging bracket has a horizontal piece in a free state.
The angle between the vertical piece and the vertical piece is set to be greater than 90 °
Ceiling ventilator according to claim 1, characterized in that the. 3. A vertical piece of a hanging bracket and the vertical piece.
Protruding toward one side of the side of the body in contact
And a temporary holding piece on the other side.
Temporary holding hole that engages with the part to temporarily hold the main body to the hanging bracket
Characterized in that the formation of the claims 1 or 2 ceiling ventilators according.