JP2000130816A - Ceiling ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an easy mounting work of a main body case. SOLUTION: When a main body case 16 and a decorative over 26 are mounted, two arms 31b of spring members 31 secured to the decorative cover 26 are inserted into a spring insertion part 19 of a flange 18 in the main case body 16 while being deformed in directions approaching each other. While this state is maintained, the main body case 16 is inserted in an opening 14a of a mounting frame 14 from downside, the flange 18 is abutted against a bottom face of the mounting frame 14, and the two arms 31b are released from holding. Then, the two arms 31b expand in a direction moving away from each other so as to be engaged with the mounting frame 14. By this constitution, the decorative cover 26 and the main body case 16 are kept raised upward by using forces exerted by the two arms 31b of the spring member 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating device for a ceiling, in which a main body case is inserted from below into an opening of a mounting frame provided on the ceiling and mounted.

[0002]

FIG. 14 shows a conventional example of this type of ceiling ventilator. In FIG. 14,
A blower 2 is provided in the main body case 1. The main body case 1 is inserted from below into an opening 4a of a mounting frame 4 provided in a ceiling plate 3 and has a flange 1a at a lower end.
Is attached to the mounting frame 4 by screwing the wood screw 5 into the wooden mounting frame 4 through a screw insertion hole formed in the flange 1a in a state in which is applied to the lower surface of the mounting frame 4. Spring engaging portions 6 are provided at two lower portions of opposing side surfaces in the main body case 1.

[0003] On the upper surface side of the decorative cover 7, two spring members 8 are attached. Each spring member 8 has two arms 8b (one each shown in FIG. 14) extending from a ring-shaped mounting portion 8a, and these arms 8b are attached in a direction in which they are separated from each other. Have power. The arm 8a of each spring member 8 is inserted into and engaged with the corresponding spring engaging portion 6, and the energizing force of the two arms 8a of each spring member 8 in the direction away from each other causes the decorative cover 8 to Pulled upwards,
It is held so as to cover the opening 4a of the mounting frame 4 from below. A vent 7b is formed in the decorative cover 7, and an exhaust port 1b is formed on one side surface of the main body case 1.

In the above configuration, the fan 2 of the blower 2
When the fan 2a is driven to rotate, the air in the room below the decorative cover 7 is sucked into the main body case 1 from the ventilation port 7b by the blowing action of the fan 2a. 1b is discharged to the space above the ceiling.

[0005] However, the above-mentioned conventional configuration has the following disadvantages. That is, when the main body case 1 is mounted on the mounting frame 4, the work of supporting the main body case 1 so as not to fall and the work of screwing the wood screw 5 are performed.
Need to be done simultaneously or by two people. Moreover, wood screws 5
Screwing the wood screws 5 directly into the mounting frame 4 requires a considerable force. For these reasons, the mounting work of the main body case 1 was very troublesome.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a ceiling ventilator capable of easily performing a mounting operation of a main body case.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 is provided such that it is inserted from below into an opening of a mounting frame provided on a ceiling and directly or under the ceiling of the mounting frame. A main body case having a flange abutting via a plate, a spring insertion portion, a decorative cover arranged so as to cover the opening of the mounting frame from below, and a mounting portion are provided. Two arm portions that extend and have a biasing force in a direction to be separated from each other, wherein the attaching portion is attached to the decorative cover, and the two arm portions are inserted into the spring insertion portion. Is characterized by having a spring member that engages with the mounting frame and holds the decorative cover and the main body case by the urging forces of the both arms.

In the above configuration, when attaching the main body case and the decorative cover, first, the two arms of the spring member attached to the decorative cover are deformed in the direction approaching each other while being inserted into the spring insertion portion of the main body case. Insert
In this state, the main body case is inserted into the opening of the mounting frame from below, and the holding of the two arms is released. Then, the two arms expand in the direction away from each other and engage with the mounting frame. Thereby, the decorative cover and the main body case are held in a state of being pulled up by the urging force of the both arm portions of the spring member. Therefore, in this case, it is not necessary to screw the screws in attaching the main body case and the decorative cover, and the main body case can be easily attached.

In order to achieve the same object, a second aspect of the present invention is to insert the mounting frame provided on the ceiling from below into the opening of the mounting frame and to abut the lower surface of the mounting frame directly or through a ceiling plate. A main body case having a flange and having a spring insertion portion, and being provided on a side surface of the main body case, projecting outward and abutting against the upper surface of the mounting frame to sandwich the mounting frame together with the flange. A support member having a support plate portion for supporting the main body case, a decorative cover arranged to cover the opening of the mounting frame from below, and a direction in which the mounting portion is provided and extends from the mounting portion and is separated from each other. Equipped with two arms that have a biasing force on
With the mounting portion attached to the decorative cover and the arms inserted into the spring insertion portion, the arms are engaged with the support member and the urging force of the arms causes the decorative cover to be engaged. And a spring member for holding the spring.

In the above configuration, when attaching the body case and the decorative cover, first, the body case is inserted from below into the opening of the mounting frame, and the support plate portion of the support member provided on the side surface of the body case is attached. The main body case is temporarily fixed to the mounting frame by making contact with the upper surface of the mounting frame. next,
The two arms of the spring member attached to the decorative cover
While being deformed in a direction approaching each other, it is inserted into the spring insertion portion of the main body case, and in this state, the holding on the two arms is released. Then, the two arms expand in a direction away from each other and come into engagement with the support member. Thereby, the urging force of the both arms of the spring member holds the decorative cover in a state of being pulled upward, and the main body with the mounting frame sandwiched between the support plate of the support member and the flange of the main body case. The case is fixed to the mounting frame.
Therefore, also in this case, it is not necessary to screw the screws in attaching the main body case and the decorative cover, and the mounting work of the main body case can be easily performed.

In the invention according to claim 2, an insertion hole through which a support plate portion of a support member is inserted is formed on a side surface of the main body case, and the support member is provided with a shielding plate portion that covers the insertion hole. Is preferable (the invention of claim 3). According to this, while the insertion hole is formed in the side surface of the main body case, the air in the main body case flows through the insertion hole to the space above the ceiling, and conversely, the air behind the ceiling flows into the main body case. Can be prevented.

It is preferable that a regulating guide portion for regulating the supporting plate portion of the supporting member to be substantially horizontal is provided inside the side surface of the main body case (the invention of claim 4).
According to this, the support plate of the support member can be prevented from tilting, and the main body case can be securely mounted on the mounting frame.

[0013] Further, in the case where an insertion hole through which the support plate portion of the support member is inserted is formed on a side surface of the main body case, it is preferable that the support member is provided with an engagement portion which is engaged with a peripheral portion of the insertion hole. (Invention of claim 5). According to this,
When the main body case is temporarily fixed, the main body case can be securely temporarily fixed by locking the locking portion of the support member to the peripheral edge of the insertion hole.

According to the fifth aspect of the present invention, the locking portion
It is preferable that an operation portion for unlocking operation that protrudes into the main body case through the insertion hole is continuously provided (the invention of claim 6). According to this, it is possible to release the locking of the locking portion by operating the operating portion from inside the main body case.

In the first or second aspect of the present invention, it is preferable that the decorative cover is formed integrally with a rib that comes into contact with the flange of the main body case or the ceiling plate from below (the seventh aspect of the present invention). Further, when the spring insertion portion is formed on the flange of the main body case, it is preferable that the rib is formed in an annular shape so as to be positioned inside the spring insertion portion and surround the lower surface opening of the main body case ( The invention of claim 8). According to this, it is possible to prevent the air on the room side from flowing to the back of the ceiling through the spring insertion portion, and conversely, the air from behind the ceiling to flow to the room side.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, in FIGS. 1 and 2, an opening 12 a is formed in a ceiling plate 12 constituting a ceiling of a room 11, and a mounting frame 14 is provided at a peripheral portion of the opening 12 a on the side of the ceiling back 13. Is provided. A ceiling ventilation device 15 is provided on the mounting frame 14.

The main body case 16 of the ceiling ventilation device 15
An upper surface 16a is closed, and a lower surface opening 17 is formed on the lower surface.
Is inserted from below. In this case, the main body case 16
Has an oval cross section as shown in FIG. A flange 18 extending laterally is provided integrally with a peripheral edge of a lower end portion of the main body case 16, and the flange 18 directly contacts the lower surface of the mounting frame 14 from below. The flange 18 has a spring insertion portion 19 formed of an elongated rectangular through hole located at a position corresponding to the two linear portions 17 a of the lower surface opening 17.

A motor 20 is mounted on the upper surface 16a of the main body case 16 with the rotating shaft 20a facing the inside of the main body case 16, and a fan 21 composed of a centrifugal fan is attached to the rotating shaft 20a. . These motors 20
And a fan 21 rotated by the motor 20 constitute a blower 22. A partition plate 24 having an intake port 23 is provided in the main body case 16 near the lower portion of the fan 21. An exhaust port 25 is formed at one location on the side surface of the main body case 16.

A decorative cover 26 is disposed below the main body case 16 so as to cover the opening 12a of the ceiling plate 12 from below. The decorative cover 26 has a rectangular shape and has a large number of ventilation holes 27. Makeup cover 2
As shown in FIGS. 4 and 5, an annular rib 28 and two protruding pieces 29 are integrally provided on the upper surface side of 6. In this case, the rib 28 is formed in an oval ring shape so as to surround the ventilation hole 27 in this case. The two protruding pieces 29 are formed so as to be located substantially outside the central portion of the linear portion of the rib 28 and to face the rib 28. The upper ends of the ribs 28 and the projecting pieces 29 abut against the flange 18 of the main body case 16 from below.

The protruding pieces 29 and the ribs 28 facing the protruding pieces 29 are formed with pin insertion holes 28a and 29a, respectively. As shown in FIG. 2, a ring-shaped mounting portion 31a of a spring member 31 is inserted between each protruding piece 29 and the rib 28 facing the same, and a pin insertion hole 28a of the rib 28, The two spring members 31 are attached to the decorative cover 26 by inserting the pins 30 into the attachment portions 31a of the spring members 31 and the pin insertion holes 28a of the protruding pieces 29. As shown in FIG. 1, each of the spring members 31 has two arms 31b extending from the mounting portion 31a, and has a biasing force in a direction in which the two arms 31b are separated from each other.

Here, both arms 31b of each spring member 31
Are inserted into the corresponding spring insertion portions 19 of the main body case 16, and as shown in FIG. 1, the distal ends of the arms 31 b engage with the upper surface of the mounting frame 14, and the arms 31 b are separated from each other. By the urging force in the direction, the decorative cover 26 and the main body case 16 are held in a state of being pulled upward.

In this mounting state, the rib 2 of the decorative cover 26 is
8 and the upper ends of the two projecting pieces 29 abut against the flange 18 of the main body case 16 from below to support the main body case 16, and the flange 18 of the main body case 16 directly abuts on the lower surface of the mounting frame 14. Further, the periphery of the decorative cover 26 is the ceiling plate 1.
2, the decorative cover 26 covers the opening 12a of the ceiling plate 12 from below. Makeup cover 26
The rib 28 is located inside the spring insertion portion 19 and surrounds the lower opening 17 of the main body case 16.

Next, the main body case 16 and the decorative cover 26
The following describes the mounting procedure. First, the makeup cover 26
Then, two spring members 31 are attached by pins 30 respectively. Next, the two arms 31b of each spring member 31 attached to the decorative cover 26 are inserted into the spring insertion portion 19 of the main body case 16 while deforming in the direction approaching each other with the thumb, the index finger and the middle finger of both hands, While deforming the two arms 31b of each of the spring members 31, the body case 16 is supported on the thumb and forefinger of both hands, and the decorative cover 26 is held by the ring finger and the little finger of both hands. As shown in FIG. 6, the main body case 16 is inserted into the opening 14a of the mounting frame 14 from below, the flange 18 is applied to the lower surface of the mounting frame 14, and the respective spring members 31 are held by the two arms 31b. Cancel.

Then, the two arms 31 of each spring member 31
b spread in a direction away from each other by their own biasing force, and as shown in FIG.
Will be engaged with the upper surface of the. Thereby, the decorative cover 26 and the main body case 16 are held in a state of being pulled upward by the urging force of the both arm portions 31b of the both spring members 31. Thus, the attachment of the main body case 16 and the decorative cover 26 is completed.

In the above configuration, when the fan 21 is driven to rotate by the motor 20 of the blower 22, the air in the room 11 is blown by the blowing action of the fan 21.
6 is sucked into the main body case 16 through the lower surface opening 17 of the main body case 16 and the air inlet 23 (see arrow A1 in FIG. 2), and the sucked air is exhausted on the side surface of the main body case 16. From 25, it is discharged to the ceiling 13 (see arrow A2 in FIG. 2).

According to the first embodiment, the following effects can be obtained. That is, when attaching the body case 16 and the decorative cover 26, the decorative cover 26
The two arms 31b of the spring member 31 attached to the main body case 16 are inserted into the spring insertion portions 19 of the main body case 16 to engage with the mounting frame 14, and the decorative cover 26 and the main body case 16 are held by the urging forces of the two arms 31b. Since the main body case 16 and the decorative cover 26 are attached, there is no need to perform an operation of screwing the screws.
6 and the work of attaching the decorative cover 26 can be easily performed. Along with this, tools such as a screwdriver are not required,
Also, the mounting time can be shortened.

Further, the body case 16 is
Rib 28 and projection 2 that abut against flange 18 from below
Since the components 9 are integrally formed, the number of components can be reduced and the cost can be reduced as compared with the case where they are formed by separate members.

Moreover, the ribs 28 are attached to the main body case 16.
Since it is located inside the spring insertion portion 19 formed on the flange 18 and surrounds the lower opening 17 of the main body case 16, it is formed in an annular shape.
It is possible to prevent the air in the room 11 from being sucked into the main body case 16 from the vent 27 of the decorative cover 26 and leaking into the ceiling 13 through the spring insertion portion 19.

By the way, the rib 28 is connected to the spring insertion portion 19
When the air blower 22 is operated, a part of the air on the room 11 side sucked into the main body case 16 from the vent 27 of the decorative cover 26 when the blower 22 is operated.
May leak into the ceiling 13 through the space.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. Note that the first
The same members and the same portions as those of the embodiment are denoted by the same reference numerals, and description thereof will be omitted. Only different portions will be described.
First, in FIGS. 7 to 10, support members 35 are attached to the main body case 16 at the lower portions of two side surfaces located near each spring insertion portion 19.

As shown in FIG. 11, the support member 35 is provided with a support plate 36 projecting in the horizontal direction, and is provided at one end of the support plate 36 so as to extend in the vertical direction perpendicular to the support plate 36. The shielding plate portion 37, an elastically deformable locking portion 38 provided on both sides of the support plate portion 36, and a locking portion 38 connected to the locking portion 38 so as to penetrate the shielding plate portion 37. An operation unit 39 for releasing operation is integrally provided. An elongated rectangular spring engagement hole 40 is formed in the support plate 36 on the shield plate 37 side. In addition, the shielding plate 3
The upper and lower right and left side portions 37a, 37a of the upper portion 7 protrude laterally more than the lower right and left side portions.

On the other hand, an insertion hole 41 formed of a rectangular through hole through which the support plate portion 36 is inserted is formed on a side surface of the main body case 16. On both sides of the insertion hole 41, regulating guide portions 42 having vertically extending grooves 42a are provided integrally.

Here, each support member 35 is provided with a support plate portion 36.
Is inserted through the insertion hole 41 from the inside of the main body case 16 to protrude outward from the main body case 16, and the right and left side portions 37 a, 37 a of the upper portion of the shielding plate portion 37 are both
2a and attached to the side surface of the main body case 16 by engaging the locking portions 38 with the peripheral edge of the insertion hole 41 (see FIG. 12). The main body case 16 is supported in contact with the upper surface. In this state, the shielding plate portion 37 covers the insertion hole 41 from inside the main body case 16.

As shown in FIG. 9, each spring member 43 attached to the decorative cover 26 has a ring-shaped attachment portion 43a.
The two arm portions 43b of the spring member 31 of the second embodiment are basically the same as those of the spring member 31 of the first embodiment. The length is set shorter than the arm 31b of the spring member 31 of the first embodiment. The arm portions 43b of these spring members 43 are inserted into the spring insertion portions 19 of the main body case 16 and inserted into and engaged with the spring engagement holes 40 of the support plate portions 36, respectively. The decorative cover 26 is held in a state of being pulled up by the urging force in the direction separating from each other. In this mounting state, the ribs 28 of the decorative cover 26 and the upper ends of the two projecting pieces 29 abut against the flange 18 of the main body case 16 from below, and the flange 18 of the main body case 16 directly abuts on the lower surface of the mounting frame 14. I have.

Next, the main body case 16 and the decorative cover 26
The following describes the mounting procedure. First, the main body case 16 is inserted into the opening 14a of the mounting frame 14 from below, the flange 18 is applied to the lower surface of the mounting frame 14, and both support members 35 are attached to the main body case 16 from inside the main body case 16. Then, both support plate portions 36 are brought into contact with the upper surface of the mounting frame 14. As a result, the main body case 16 is attached to the mounting frame 14 so that the mounting frame 14 is sandwiched between the support plate portion 36 and the flange 18.
Temporarily.

Next, the two arm portions 43b of each spring member 43 attached to the decorative cover 26 are inserted into the spring insertion portion 19 of the main body case 16 while deforming in the direction approaching each other, and the support plate portion 36 To release the holding of the two arms 43b. Then, the two arms 43b of each spring member 43 expand in a direction away from each other by their own urging force, and each of them comes into engagement with the spring engagement hole 40 as shown in FIG. Thereby, the urging force of both arm portions 43b of both spring members 43 causes
The decorative cover 26 is held in a state of being lifted upward, and the support plate portion 36 of the support member 35 and the main body case 1
The main body case 16 is fixed to the mounting frame 16 with the mounting frame 14 sandwiched between the mounting frame 16 and the flange 18. Thus, the attachment of the main body case 16 and the decorative cover 26 is completed.

In the second embodiment described above, the following effects can be obtained. That is, the main body case 16
When attaching the decorative cover 26, first, the support plate 3 of the support member 35 provided on the side surface of the main body case 16 is used.
6, the main body case 16 is temporarily fixed to the mounting frame 14,
Thereafter, the spring member 43 attached to the decorative cover 26 is
The two arms 43b of the main body case 16 are
9 and the support plate 36 are inserted into the spring engagement holes 40 and engaged with the spring engagement holes 40, so that the decorative cover 26
And the main body case 16 is fixed to the mounting frame 16 while the mounting frame 14 is sandwiched between the support plate portion 36 of the support member 35 and the flange 18 of the main body case 16. Similarly, when attaching the main body case 16 and the decorative cover 26, there is no need to perform a screwing operation, and the mounting operation of the main body case 16 can be easily performed. Accordingly, tools such as a driver are not required. Also, the mounting time can be shortened.

Further, since the main body case 16 is fixed to the mounting frame 14 with the mounting frame 14 sandwiched between the support plate portion 36 of the support member 35 and the flange 18 of the main body case 16, the main body case 16 can be further layered. Can be attached firmly. In particular, in the second embodiment, since the main body case 16 is temporarily fixed to the mounting frame 14, the mounting operation can be performed more easily.

Further, while the insertion hole 41 for inserting the support plate portion 36 of the support member 35 is formed in the side surface of the main body case 16, the insertion hole 41 is formed in the support member 35 from inside the main body case 16. By providing the covering shield plate portion 37, the air in the main body case 16 is prevented from flowing into the ceiling back 13 through the insertion hole 41 and, conversely, the air from the ceiling back 13 is prevented from flowing into the main body case 16. it can.

Incidentally, when the insertion hole 41 is left open, the main body case 16 is inserted through the insertion hole 41.
There is a possibility that the air in the ceiling may flow to the inside of the ceiling 13, or conversely, the air in the ceiling 13 may flow into the body case 16.

Further, a regulating guide portion 42 is provided inside the side surface of the main body case 16, and the right and left side portions 37 a of the upper portion of the shielding plate portion 37 are inserted into the grooves 42 a of the regulating guide portion 42, so that the supporting member 35 Since the support plate portion 36 is configured to be regulated to be substantially horizontal, the support member 35
Of the main body case 16 can be prevented.
Of the main body case 1
6 can be securely attached to the attachment frame 14.

Incidentally, when the regulating guide portion 42 is not provided in the main body case 16, the supporting plate portion 36 of the supporting member 35 is provided.
Of the main body case 16 is difficult to temporarily fix.

Further, the locking portion 28 provided on the support member 35
Is fixed to the peripheral edge of the insertion hole 41, the support member 35 can be securely attached to the main body case 16, and the main body case 16 can be securely temporarily fixed to the mounting frame 14.

Further, the operating portion 39 which penetrates the insertion hole 41 and protrudes into the main body case 16 is connected to the locking portion 38 so that the operating portion can be operated from inside the main body case 16 (from the room 11 side). It is possible to release the locking of the locking portion 38 by operating the locking portion 39.
As shown by a two-dot chain line in FIG.
6 can be removed inside.

The present invention is not limited to the above embodiments, but can be modified or expanded as follows. In each of the above embodiments, the exhaust port 25 of the main body case 16 is opened at the ceiling 13, but the exhaust port 25 may be connected to a duct provided at the ceiling 13.

The present invention can also be applied to a case where the blower 22 is not provided in the main body case 16. Body case 16
May be configured to abut the lower surface of the mounting frame 14 via the ceiling plate 12.

[0047]

As is clear from the above description, according to the present invention, the following effects can be obtained. Claim 1
According to the ceiling ventilator, when the main body case and the decorative cover are attached, both arms of the spring member attached to the decorative cover are inserted into the spring insertion portions of the main body case to engage with the mounting frame, and Since the makeup cover and the main body case are held by the urging force of the arm portion, the mounting operation of the main body case can be easily performed.

According to the second aspect of the present invention, when the main body case and the decorative cover are attached, first, the main body case is attached to the mounting frame by using the support plate portion of the support member provided on the side surface of the main body case. Temporarily fixed, and then the arms of the spring member attached to the decorative cover are inserted into the spring insertion portion of the main body case and engaged with the mounting frame, so that the main body case can be easily attached. Can be. Moreover, since the main body case is fixed to the mounting frame in a state where the mounting frame is sandwiched between the support plate portion of the support member and the flange of the main body case, the main body case can be more firmly mounted.

According to the ceiling ventilation device of the third aspect, the insertion hole for inserting the support plate portion of the support member is formed in the side surface of the main body case, but the insertion hole is formed by the shield plate portion provided in the support member. By covering the insertion hole, it is possible to prevent the air inside the main body case from flowing through the insertion hole to the space above the ceiling and, conversely, the air inside the ceiling case from flowing into the body case.

According to the fourth aspect of the present invention, since the regulating guide is provided inside the side surface of the main body case, the support plate of the supporting member can be prevented from being inclined, and the main body case can be attached to the mounting frame. It can be attached securely. According to the ceiling ventilating device of claim 5, by locking the locking portion provided on the support member to the peripheral portion of the insertion hole,
The support member can be securely attached to the body case,
As a result, the main body case can be securely temporarily fixed to the mounting frame.

According to the ceiling ventilating device of the sixth aspect, the operating portion that penetrates the insertion hole and protrudes into the main body case is connected to the locking portion, so that the operating portion can be moved from inside the main body case. It becomes possible to release the locking of the locking portion by operating, and the support member can be removed inside the main body case.

According to the ceiling ventilating device of the present invention, since the ribs are formed integrally with the decorative cover, the number of parts can be reduced and the cost can be reduced as compared with the case where the ribs are formed by separate members. According to the ceiling ventilation device of claim 8, while the spring insertion portion is formed in the flange in the main body case, the air in the room flows through the spring insertion portion to the space above the ceiling, and conversely, the air in the space above the ceiling is removed. It can be prevented from flowing to the room side.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention.
Longitudinal cross-sectional view of main parts along line 1-X1

FIG. 2 is a longitudinal sectional front view of an attached state.

FIG. 3 is a broken bottom view showing the decorative cover in a broken state.

FIG. 4 is a plan view of a decorative cover.

FIG. 5 is a longitudinal sectional front view taken along line X2-X2 in FIG. 4;

FIG. 6 is a view corresponding to FIG.

FIG. 7 is a view corresponding to FIG. 2, showing a second embodiment of the present invention;

FIG. 8 is an enlarged vertical sectional front view of a main part.

FIG. 9 is a longitudinal sectional view of a main part taken along line X3-X3 in FIG. 7;

FIG. 10 is a diagram corresponding to FIG. 3;

FIG. 11 is a perspective view of a support member.

FIG. 12 is a cross-sectional plan view of a main part.

FIG. 13 is a longitudinal sectional view for explaining the operation.

FIG. 14 is a diagram corresponding to FIG. 2 showing a conventional example.

[Explanation of symbols]

12 is a ceiling plate (ceiling), 14 is a mounting frame, 14a is an opening, 15 is a ceiling ventilator, 16 is a main body case, 17 is a lower surface opening, 18 is a flange, 19 is a spring insertion part, 22
Is a blower, 25 is an exhaust port, 26 is a decorative cover, 28 is a rib, 29 is a projecting piece, 31 is a spring member, 31a is a mounting portion,
31b is an arm, 35 is a support member, 36 is a support plate, 37
Is a shielding plate portion, 38 is a locking portion, 39 is an operation portion, 40 is a spring engagement hole, 41 is an insertion hole, 42 is a regulating guide portion, 43 is a spring member, 43a is a mounting portion, and 43b is an arm portion. .

Claims (8)

[Claims] A body case provided with a flange inserted from below into an opening of a mounting frame provided on a ceiling and abutting directly on a lower surface of the mounting frame or via a ceiling plate, and having a spring insertion portion; A decorative cover disposed so as to cover the opening of the mounting frame from below; and a mounting cover, and two arms extending from the mounting portion and having a biasing force in a direction away from each other. In a state where the mounting portion is attached to the decorative cover and the arms are inserted into the spring insertion portion, the arms are engaged with the mounting frame and the urging force of the arms causes the decorative cover to be attached. And a spring member for holding the main body case. 2. A main body case comprising: a flange which is inserted from below into an opening of a mounting frame provided on a ceiling, and which comes into contact with a lower surface of the mounting frame directly or via a ceiling plate; A support member provided on a side surface of the main body case and having a support plate portion that protrudes outward and abuts on the upper surface of the mounting frame to support the main body case by sandwiching the mounting frame together with the flange; A decorative cover disposed so as to cover the opening of the mounting frame from below; and a mounting cover, and two arms extending from the mounting portion and having a biasing force in a direction away from each other. In a state where the mounting portion is attached to the decorative cover and the arms are inserted into the spring insertion portion, the arms are engaged with the support member, and the makeup is applied by the urging force of the arms. A ceiling ventilator, comprising: a spring member for holding a cover. 3. A side surface of the main body case is formed with an insertion hole through which the support plate of the support member is inserted, and the support member is provided with a shield plate covering the insertion hole. 3. The ceiling ventilator according to claim 2, wherein: 4. A ceiling according to claim 2, wherein a regulating guide for regulating the supporting plate of the supporting member so as to be substantially horizontal is provided inside the side surface of the main body case. For ventilation equipment. 5. An insertion hole through which a support plate of a support member is inserted is formed on a side surface of the main body case, and the support member is provided with an engagement portion which is engaged with a peripheral portion of the insertion hole. The ceiling ventilator according to claim 2, wherein: 6. The ceiling unit according to claim 5, wherein an operation portion for unlocking operation is provided at the locking portion so as to extend through the insertion hole and protrude into the body case. Ventilation equipment. 7. The ceiling ventilator according to claim 1, wherein the decorative cover is integrally formed with a rib that comes into contact with a flange of the main body case or a ceiling plate from below. 8. The spring insertion portion is formed on a flange of the main body case, and the rib is formed inside the spring insertion portion and is formed in an annular shape so as to surround the lower surface opening of the main body case. The ceiling ventilator according to claim 7, characterized in that: