JPH0727389A - Ventilating fan for ceiling - Google Patents

Abstract

PURPOSE:To facilitate work of mounting and demounting a main body of a ventilating fan by inserting the main body through an opening of the ceiling and pivotably operating tightening members downward, while hooking engagement portions of coupling members to stopping members, to mount the main body on a mounting frame. CONSTITUTION:Coupling members 25 are so constituted that, when the main body 14 of a ventilating fan is inserted through an opening 12 of the ceiling, at least the sides of engagement portions 26 of the coupling members can pass mounting frame 13 by deviating the coupling members 25 in the inward direction of the main body 14. Tightening members 23 are so constituted that, when they are pivotably operated downward under the condition where the engagement portions 26 of the coupling members 25 are hooked to stopping members 27, the coupling members 25 are pulled downward and, by its reaction force, the main body 14 is urged upward to press their flanges 15 against the under side of the opening 12, while the tightening members themselves retain the condition of being pivoted downward by a pulling force received from the coupling members 25. According to these constitutions, the main body 14 can be easily mounted in a short period of time, and demounting work can also be carried out in a short period of time.

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 ceiling which is inserted into an opening formed in a ceiling and is attached to a mounting frame provided around the opening.

[0002]

2. Description of the Related Art As shown in FIG. 15, a conventional mounting structure for a ceiling ventilation fan of this type is as follows. The main body 1 is inserted into the back of the ceiling through an opening 3 formed in a ceiling plate 2, and the lower end of the main body 1 is inserted. The flange 4 of the section is fastened and fixed to the wooden mounting frame 5 provided around the opening 3 by the wood screw 6.

[0003]

However, in the above-described conventional mounting structure, when the main body 1 is attached to or removed from the wooden frame 5, an operator supports the main body 1 with one hand. However, there is a problem in that the wood screw 6 must be turned in the tightening direction and the loosening direction with a screwdriver held in the other hand, which makes mounting and removing work troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ceiling ventilating fan which can be easily attached and detached.

[0005]

A ventilation fan for a ceiling according to claim 1, wherein the main body is inserted from an opening formed in the ceiling and attached to a mounting frame provided around the opening, the main body comprising: A flange abutted against the lower surface of the peripheral edge of the opening, an insertion hole formed in the side surface of the main body, and a support provided inside the main body in the vicinity of the insertion hole. A fastening member rotatably supported by the member via a shaft in the up-down direction, a base end portion of the fastening member rotatably connected to the fastening member at a position away from the shaft, and a tip end side. And a coupling member that is displaceable inward and outward from the main body through the insertion hole, and a stop member that is fixed to the upper surface of the mounting frame and that is hooked by the coupling member. The connecting member is
By being displaced inward of the main body, at least the engaging portion side is configured to be able to pass through the attachment frame when the main body is inserted into the opening portion, and the tightening member is the engaging member of the connecting member. When the part is hooked on the stopper member, the connecting member is pivoted downward, thereby pulling the connecting member downward and urging the main body upward by the reaction force of the connecting member to move the flange to the lower surface of the opening. While pressing
It is characterized in that it is configured so as to maintain a state of being rotated downward by a pulling force received from the connecting member.

According to a second aspect of the present invention, there is provided a ceiling ventilation fan characterized in that the connecting member is formed of a plate material, and a tip portion of the connecting member is formed as a guide portion that is bent obliquely upward.

In the ceiling ventilation fan according to a third aspect of the present invention, the main body is inserted from an opening formed in the ceiling and is attached to a mounting frame provided around the opening. A flange that abuts the lower surface of the peripheral portion of the portion, an insertion hole formed in the side surface of the main body, and a support member provided inside the main body in the vicinity of the insertion hole via a shaft. A fastening member rotatably supported in the vertical direction and a base end portion of the fastening frame are rotatably connected to the fastening member at a position apart from the shaft, and the top surface of the mounting frame is located on the tip end side. And a coupling member that is displaceable inward and outward of the main body through the insertion hole, and the coupling member is displaced inward of the main body. By inserting the main body into the opening, At least the locking claw portion side is configured to be able to pass through the mounting frame, and the tightening member is rotated downward while the locking claw portion of the connecting member is locked to the upper surface portion of the mounting frame. As a result, the connecting member is pulled downward and the reaction force urges the main body upward to press the flange against the lower surface of the opening, and the flange itself is rotated downward by the pulling force received from the connecting member. It is characterized in that it is configured so as to retain the above-mentioned state.

According to a fourth aspect of the present invention, there is provided a ceiling ventilation fan, wherein the main body is inserted from an opening formed in the ceiling and attached to a mounting frame provided around the opening, the ventilation fan being provided in the main body. A flange that abuts the lower surface of the peripheral portion of the portion, an insertion hole formed in the side surface of the main body, and a support member provided inside the main body in the vicinity of the insertion hole via a shaft. A fastening member rotatably supported in the vertical direction and a base end portion of the fastening frame are rotatably connected to the fastening member at a position apart from the shaft, and the top surface of the mounting frame is located on the tip end side. A support member that abuts against the member and a restraint member that abuts against the outer surface of the body, and a connecting member that is displaceable inward and outward of the body through the insertion hole.
When the connecting member is displaced inward of the main body, at least the supporting portion and the restraining portion are configured to be able to pass through the attachment frame when the main body is inserted into the opening portion. The tightening member is rotated downward in a state where the supporting portion and the restraining portion of the connecting member are in contact with the upper surface portion of the mounting frame and the outer surface of the main body, respectively, so that the connecting member is moved downward. It is configured to pull and urge the main body upward by its reaction force to press the flange against the lower surface of the opening portion, and hold itself in the state rotated downward by the pulling force received from the connecting member. It is characterized by that.

In the ceiling ventilation fan according to a fifth aspect of the present invention, a shaft for rotatably supporting the fastening member with respect to the support member is attached to the fastening member, and the shaft support hole through which the shaft is passed is formed. It is characterized in that it is formed in the shape of an elongated hole extending in the up-down direction, and that recesses for supporting the shaft are formed in a plurality of vertical steps on the inner side surface of the shaft support hole.

[0010]

According to the means described in claim 1, the main body is mounted by inserting the main body from the opening of the ceiling, hooking the engaging portion of the connecting member to the stopper member, and rotating the tightening member downward. It can be attached to the frame, and conversely, when removing the main body from the attachment frame, it is sufficient to rotate the fastening member upward to remove the engaging portion of the connecting member from the stopper member.

According to the second aspect of the present invention, when the engaging portion of the connecting member is hooked on the stopper member, the guide portion guides the tip of the connecting member over the stopper member so that the engaging portion engages the stopper member. To be done. According to the means described in claim 3, the connecting member can be directly stopped in the mounting frame by directly engaging the locking claw portion of the connecting member with the mounting frame. According to the means described in claim 4, the support portion is restrained so as not to come off the upper surface portion of the mounting frame by the contact of the restraint portion with the outer surface of the main body. According to the means described in claim 5, even if the thickness dimension of the mounting frame is different depending on the case, it is possible to easily deal with the difference in the thickness dimension.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, a rectangular opening 12 is formed in the ceiling plate 11 of the room, and a rectangular frame as a mounting frame is formed so as to surround the opening 12 on the upper surface (back surface) of the ceiling plate 11. A wooden frame 13 having a shape is attached. A main body 14 of the ceiling ventilation fan inserted through the opening 12 is attached to the wooden frame 13 as described later.

The body 14 has a flange 1 on the outer periphery of the lower end.
It is formed in a rectangular box shape having 5. A fan casing portion 17 is formed by an end plate 16 in the upper half portion of the main body 14, and a centrifugal fan rotated by a motor 18 attached to the upper surface portion of the main body 14 is formed in the fan casing portion 17. 19 are arranged. Further, a makeup cover 20 that covers the entire opening 12 from the indoor side is detachably attached to the main body 14 through an attachment tool (not shown). Then, when the fan 19 is rotated by the motor 18, the air in the room is vented to the ventilation holes 20 of the makeup cover 20.
a, the suction port 16a formed in the end plate 16 is sequentially sucked into the fan casing portion 17, and the air outlet port of the fan casing portion 17 and a duct (not shown) connected to the air outlet port are connected to each other. It is designed to be discharged to the outside through the order.

Next, the mounting structure of the main body 14 to the opening 12 (the wooden frame 13) will be described. That is, as shown in FIG. 2, for example, a pair of insertion holes 21 (only one is shown) are formed in the lower portions of the left and right side surface portions of the body 14 near two corners on the diagonal of the body 14, for example. ing. A support member 22 is attached to both left and right inner side surfaces of the main body 14 in the vicinity of the lower side of the insertion hole 21, and one end portion of a tightening member 23 is attached to the support member 22 via a shaft 24. It is attached so as to be vertically rotatable.

A connecting member 25 is rotatably connected to the tightening member 23. First, as shown in FIG. 5, the fastening member 23 has a substantially inverted U-shaped cross section, and the fastening member 23 is provided on both side surfaces facing each other. A connecting hole 23b is formed near the tip end side of the finger contact portion 23a from the shaft 24 which is the center of rotation of the connecting hole 23b. On the other hand, the connecting member 25 is formed of an elastic metal wire into a bifurcated shape with an intermediate portion bent into a substantially V shape. A shaft portion 25a (only one of which is shown) is formed by bending both ends of the metal wire rod constituting the above inwardly in a substantially L-shape. By inserting the shaft portion 25a into the connecting hole 23b, the base end portion of the connecting member 25 is rotatably connected to the tightening member 23.

As described above, the tip of the connecting member 25 connected to the tightening member 23, that is, the portion that branches into a bifurcated shape is the engaging portion 26, and the engaging portion 26 rotates about the shaft portion 25a. By the movement, it is displaced through the insertion hole 21 in the directions of the arrow A and the arrow B, which are the inner and outer directions of the main body 14. A stopper member 27 is fixed to the upper surface of the wooden frame 13 by a wood screw 28 with respect to the connecting member 25. A hook portion 27a is formed at the tip of the stopper member 27 so as to project obliquely upward toward the outside of the opening 12. The hook portion 27a of the connecting member 25 is hooked and supported by the hook portion 27a. It is like this.

Next, the procedure for attaching the main body 14 to the wooden frame 13 will be described. Now, it is assumed that the decorative cover 20 has been removed from the main body 14. When the makeup cover 20 is removed, the lower surface of the main body 14 is open. Therefore, a hand is inserted into the main body 14 from the open lower surface, and the fastening member 23 is set to, for example, a substantially horizontal state as shown in FIG. And rotate the connecting member 25 in the direction of arrow A
Most of the connecting member 25 is pivotally displaced in the direction
It is pulled into 4 inside. This state is maintained by the frictional force acting between the support member 22, the tightening member 23, and the connecting member 25.

Thereafter, as shown in FIG. 2, when the main body 14 is pushed up so as to be inserted into the opening 12, the connecting member 25
Since most of them are accommodated in the main body 14, there is no risk that the engaging portion 26 of the connecting member 25 will be supported by the wooden frame 13, and the main body 14 is inserted into the ceiling above the ceiling 12 through the opening 12. Then, when the main body 14 is pushed up until the flange 15 comes into contact with the lower surface of the peripheral edge of the opening 12, that is, the lower surface of the wooden frame 13, the engaging portion 26 side, which is the tip end side of the connecting member 25, is indicated by a chain double-dashed line in FIG. Then, the wooden frame 13 is completely passed through. Therefore, the fastening member 23 is rotated upward from the position indicated by the chain double-dashed line in FIG. 3 as indicated by the solid line, and then the connecting member 25 is rotationally displaced in the direction of arrow B to engage the engaging portion of the connecting member 25. 26 is projected to the outside of the main body 14. As a result, the engaging portion 26 finally stops the stopper member 2.
The connecting member 25 is hooked on the hook portion 27a of No. 7 and is supported by the stopper member 27.

When the engaging portion 26 is hooked on the hook portion 27a in this manner, the main body 14 is stopped by the fastening member 23 and the connecting member 25 even if the hand is removed from the main body 14.
Since it will be hung on 7, it will not fall off from the opening 12.

Now, after the engaging portion 26 is hooked on the hook portion 27a, with the flange 15 being pressed against the wooden frame 13, a finger is hooked on the finger contact portion 23a so that the portion tightening member 23 can be removed as shown in FIG.
It is rotated downward as indicated by arrow C. Then, the distance from the hook portion 27a (engaging portion 26) to the connecting hole 23b (shaft portion 25a) increases until the tightening member 23 becomes horizontal, so that the connecting member 25 elastically extends. Then, when the tightening member 23 is rotated further downward than the horizontal state, the distance from the hook portion 27a to the connecting hole 23b decreases, so that the connecting member 25 contracts due to its elastic restoring force. .

Then, as shown in FIG. 4, when the tip end side of the fastening member 23 comes into contact with the inner side surface of the main body 14, the turning of the fastening member 23 stops there. In this state, the hook portion 27
Since the distance from “a” to the connecting hole 23b is slightly longer than the initial length between the engaging portion 26 and the shaft portion 25a, the connecting member 25 is in a slightly extended state. Then, Fig. 4
In the state shown in (1), since the tightening member 23 is in a state in which the connecting member 23 is pulled obliquely downward, its reaction force (the connecting member 2
The elastic restoring force (3) causes the main body 14 to receive an upward biasing force, and as a result, the flange 15 of the main body 14 is
Will be pressed against the wooden frame 13. From the above,
The wooden frame 13 is strongly tightened between the engaging portion 26 of the connecting member 25 and the flange 15, and the main body 14 is attached to the wooden frame 13 as shown in FIG.

Here, when the main body 14 is completely attached as shown in FIG. 1, as shown in FIG. 4, it acts on the straight line connecting the engaging portion 26 of the connecting member 25 and the shaft portion 25a, in other words, the connecting member 25. The line of action D of the pulling force is the tightening member 23.
Exists below the axis 24 of the center of rotation of the. For this reason,
The pulling force acting on the connecting member 25 acts as a biasing force for rotating the tightening member 23 in the arrow C direction, so that the tightening member 23 is carelessly rotated in the opposite direction to the arrow C and the main body 14 is rotated. It does not happen that the tree comes off the wooden frame 13. Then, in order to remove the main body 14 fixed to the wooden frame 13 as described above, the procedure opposite to the above-described mounting procedure may be performed.

As described above, according to this embodiment, the main body 14 is inserted into the opening 12, and the engaging portion 2 of the connecting member 25 is inserted.
6 is hooked on the hook portion 27a of the stopper member 27, and the tightening member 23 is rotated downward.
Since 4 can be attached to the wooden frame 13, the main body 14 can be attached easily and in a short time, and the work of removing the same can be performed easily and in a short time, as compared with the conventional installation configuration using a wooden screw, which requires a long time. Can be done at.

FIGS. 6 and 7 show a second embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals, detailed description thereof will be omitted, and only different parts will be described. First, the insertion hole 29 on the side surface of the main body 14 is formed vertically long. Then, a pair of plate members 30a (only one of which is shown) constituting the support member 30 is attached from the left and right sides of the lower half of the insertion hole 29 to the lower side thereof. The pair of plate members 30a has a vertically long shaft support hole 31 extending vertically.
Of the inner side surfaces of the shaft support hole 31, which are opposite to the insertion hole 29, the inner surface of the shaft support hole 31 opposite to the insertion hole 29 is vertically recessed in multiple stages.
a is formed. On the other hand, the fastening member 23 is arranged so as to be vertically movable between the pair of plate members 30a, and a shaft 32 is attached to one end of the fastening member 23. Both ends of the shaft 32 are projected from the fastening member 23 and inserted into the shaft support hole 31.

In the above structure, the main body 14 is provided with the opening 12
After being inserted into the wooden frame 13, in order to attach the wooden frame 13 to the wooden frame 13, first, the tightening member 23 is moved up and down so that its position is the thickness T of the wooden frame 13.
And the shaft 32 is supported by the recess corresponding to the set height in the recess 31a. After that, as shown in FIG. 7, the engaging portion 26 of the connecting member 25 is hooked on the hook portion 27 a of the stopper member 27 so that the tightening member 23.
Rotate downward. Then, similarly to the first embodiment, the wooden frame 13 is clamped between the engaging portion 26 of the connecting member 25 and the flange 15, and the main body 14 is attached to the wooden frame 13.

By the way, when the main body 14 is completely attached in FIG.
Since the shaft portion 32 is biased to rotate in the direction, there is no possibility that the shaft portion 32 accidentally slips out of the concave portion 31. In the present embodiment configured as described above, the position of the tightening member 23 can be adjusted in multiple stages in the vertical direction. Therefore, even if the thickness dimension of the wooden frame 13 is different depending on the case, the difference in the thickness of the wooden frame 13 will not occur. Easy to deal with.

8 to 10 show a third embodiment of the present invention. The difference from the first embodiment is that the connecting member is formed of a metal plate material. That is, FIG.
As shown in, the connecting member 33 is formed in a substantially V shape by a metal plate material having elasticity. The base end portion of the connecting member 33 is formed into a bifurcated shape, and the tip end portions of both side portions thereof are the pins 3.
It is rotatably connected to the tightening member 23 via 4.
An engaging hole 35 as an engaging portion is formed on the tip end side of the connecting member 33, and a portion closer to the tip end than the engaging hole 35 is curled obliquely upward to form a guide portion 36.

With this structure, when the connecting member 33 is rotated in the direction of the arrow B to engage the engaging hole 35 with the hook portion 27a of the stopper member 27 as shown in FIG. When it comes into contact with the hook portion 27a, the guide portion 36
The guide portion 36 naturally rides over the hook portion 27a and passes through it. For this reason,
Unlike the case where the guide portion 36 is not provided, there is no fear that the tip end portion of the connecting member 33 will be supported by the hook portion 27a and cannot be further rotated in the arrow B direction. Therefore, by simply rotating the connecting member 33 in the direction of arrow B, the engaging hole 35
Is securely engaged with the hook portion 27a, and thereafter, by rotating the fastening member 23 downward, the attached state shown in FIG. 10 can be obtained, and the workability is further improved.

11 and 12 show a fourth embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals and only different parts will be described. That is, the connecting member 37 is formed in a substantially V shape by using a metal plate material having elasticity, and the base end portion of the connecting member 37 is fixed by the pin 38 to the tightening member 23 similarly to the connecting member 37 in the third embodiment. Is rotatably connected to. Then, a triangular locking claw portion 39 that is locked to the upper surface of the wooden frame 13 by biting is formed at the tip of the connecting member 37 by cutting and raising. In addition, in this embodiment, the stopper member 27 attached to the wooden frame 13 in the first embodiment is omitted.

In this embodiment having this structure, after the main body 14 is inserted into the opening 12, it is attached to the wooden frame 13.
The connecting member 37 is rotated in the arrow B direction to position the locking claw portion 39 on the upper surface portion of the wooden frame 13. After that, the tightening member 23
Is rotated downward, the connecting member 37 is pulled downward, and the pulling force causes the locking claw portion 39 to bite into and lock the upper surface of the wooden frame 13. For this reason,
Even if the stopper member 27 is not provided, the tip portion of the connecting member 37 is not likely to come off from the wooden frame 13, and the main body 14 can be securely attached.

13 and 14 show a fifth embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals and only different parts will be described. That is, the connecting member 40 is formed of a metal wire rod having elasticity in a bifurcated shape whose middle portion is bent into a substantially S shape, and the base end portion of the connecting member 40 is tightened by the same means as the connecting member 25 in the first embodiment. It is rotatably connected to the attachment member 23.

A portion of the connecting member 40 which is bent so as to be convex downward is a supporting portion 41 which abuts on the upper surface of the wooden frame 13, and a tip portion of which is a restraining portion which abuts on the outer surface of the main body 14. It is 42. Further, the restraint portion 42 side which is the tip end side of the connecting member 40 is projected outward from the insertion hole 21 of the main body 14.

In the above structure, the main body 14 is provided with the opening 12
13, the fastening member 23 is placed in a substantially horizontal state and the supporting member 41 side of the connecting member 40 is inserted into the main body 1 as shown in FIG.
4, the connecting member 40 is rotated in the direction of arrow A so that the restraint portion 42 abuts on the outer surface of the main body 14. As a result, the outward protrusion amount of the connecting member 40 is reduced, so that when the main body 14 is inserted into the opening 12, the connecting member 40 does not pass through the peripheral edge of the opening 12 or the wooden frame 13 and passes through them. Come to do.

After inserting the main body 14 into the opening 12, the fastening member 23 is rotated downward to be attached to the wooden frame 13. Then, the connecting member 40 projects outward, the supporting portion 41 contacts the upper surface of the wooden frame 13, and the restraining portion 42 contacts the outer surface of the main body 14 as shown in FIG. After that, the connecting member 40 is pulled downward as the fastening member 23 rotates downward, so that the reaction force pulls the main body 14 upward, and as a result, the main body 14 is pulled up. The flange 15 is strongly pressed against the wooden frame 13. As described above, the main body 14 is attached to the wooden frame 13 in a state where the wooden frame 13 is strongly tightened between the support portion 41 of the connecting member 40 and the flange 15.

Here, when the main body 14 is completely attached, as shown in FIG. 14, the line of action F of the pulling force acting on the connecting member 40 is the axis 2 of the center of rotation of the tightening member 23.
Since it exists below 4, the pulling force acting on the connecting member 40 acts as a biasing force for rotating the fastening member 23 in the direction of arrow C, so that the fastening member 23 is inadvertently referred to as arrow C. There is no possibility of causing a serious accident that the main body 14 comes off from the opening 12 by rotating in the opposite direction. Further, the pulling force received from the tightening member 23 exerts a moment on the connecting member 40 in the direction of the arrow G with the supporting portion 41 as a fulcrum, but since the restraining portion 42 is in contact with the outer surface of the main body 14, Since the moment can be received by the main body 14, the supporting portion 41 does not come off from the wooden frame 13.

As described above, in this embodiment, since the connecting member 40 has a function of preventing the connecting member 40 from coming off from the wooden frame 13 by itself, the stopping member 27 in the first embodiment and the connecting member 40 in the fourth embodiment. Since it is not necessary to provide the locking claws 39 and the like, the structure can be simplified.

The structure described in the second embodiment, that is, the structure in which the vertical position of the tightening member 23 can be adjusted in order to cope with the difference in the thickness dimension of the wooden frame 13, does not require the connecting member 25. Not only the structure in which the locking member 27 is hooked, the locking claw portion 3 shown in the third embodiment is also used.
It may be applied to a configuration in which 9 is bited into the wooden frame 13, or a configuration in which the connecting member 40 itself shown in the fifth embodiment has a function of preventing detachment from the wooden frame 13. Besides, the present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention.

[0038]

As described above, according to the present invention, the following effects can be obtained. According to the ceiling ventilation fan of claim 1, the main body is attached to the mounting frame only by inserting the main body from the opening of the ceiling, hooking the engaging portion of the connecting member to the stopper member, and rotating the fastening member downward. Since it can be attached to the main body, the main body can be attached and detached easily and in a short time, unlike the conventional case where the main body is fixed to the attachment frame with a screw.

In the ceiling ventilation fan according to the second aspect of the invention, since the guide portion is provided at the tip of the connecting member, there is no risk of the connecting member supporting the stopping member when the engaging portion is hooked on the stopping member. The work of hooking the engaging portion of the connecting member to the stopper member can be performed easily and reliably.

According to the ceiling ventilator of the third aspect, the engaging claw portion of the connecting member is directly attached to the attaching frame by providing the connecting member with the engaging claw portion that is engaged with the attaching frame by biting. The number of parts can be reduced.

In the ceiling ventilation fan according to the fourth aspect of the present invention, the connecting frame is provided with the restraining portion that abuts against the outer surface of the main body and restrains the supporting portion from coming off the mounting frame. There is no need to provide a stop member or a locking claw portion on the connecting member, which simplifies the configuration.

In the ceiling ventilation fan according to the fifth aspect of the present invention, since the fastening member is supported so as to be movable up and down with respect to the support member, even if the thickness of the mounting frame differs depending on the case, The difference in the thickness dimension can be easily dealt with.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a first embodiment of the present invention in a state where a main body is attached.

FIG. 2 is a vertical cross-sectional side view of essential parts showing a state during insertion into the opening of the main body.

FIG. 3 is a vertical cross-sectional side view of a main portion showing a process of hooking a hooking portion of a stopper member on a receiving member.

FIG. 4 is a vertical cross-sectional side view of essential parts shown with the main body attached.

FIG. 5 is a perspective view of a main part

FIG. 6 is a vertical cross-sectional view of a main part showing a second embodiment of the present invention.

FIG. 7 is a view corresponding to FIG.

FIG. 8 is a perspective view of an essential part showing a third embodiment of the present invention.

FIG. 9 is a view corresponding to FIG.

FIG. 10 is a view corresponding to FIG.

FIG. 11 is a perspective view of an essential part showing a fourth embodiment of the present invention.

FIG. 12 is a view corresponding to FIG.

FIG. 13 is a vertical cross-sectional side view of essential parts showing a fifth embodiment of the present invention.

FIG. 14 is a view corresponding to FIG.

FIG. 15 is a view corresponding to FIG. 1 showing a conventional configuration.

[Explanation of symbols]

11 is a ceiling plate, 12 is an opening, 13 is a wooden frame (mounting frame),
14 is a main body, 15 is a flange, 21 is an insertion hole, 22 is a support member, 23 is a fastening member, 24 is a shaft, 25 is a connection, 26
Is an engaging portion, 27 is a stop member, 29 is an insertion hole, 30 is a support member, 31 is a shaft support hole, 32 is a shaft, 33 is a stop member, 35
Is a engaging hole (engaging portion), 36 is a guide portion, 37 is a retaining member, 39 is a locking claw portion, 40 is a retaining member, 41 is a supporting portion,
42 is a restraint part.

Claims (5)

[Claims] 1. A body which is inserted into an opening formed in a ceiling and attached to a mounting frame provided around the opening, wherein the body is provided and abuts a lower surface of a peripheral portion of the opening. A flange, an insertion hole formed in a side surface portion of the main body, and a support member provided inside the main body in the vicinity of the insertion hole so as to be vertically rotatable via an axis. And a proximal end portion of the fastening member is rotatably connected to the fastening member at a position away from the shaft, and an engaging portion is formed on the distal end side, and the fastening member is formed through the insertion hole. A connecting member that is displaceable in the inner and outer directions of the main body; and a stopper member that is fixed to the upper surface portion of the mounting frame and on which the engaging portion of the connecting member is hooked, the connecting member being displaced in the inner direction of the main body. By being booked to the opening With the insertion of the body, at least the engaging portion side is configured to be able to pass through the attachment frame, and the tightening member is rotated downward in a state where the engaging portion of the connecting member is hooked on the stopper member. By pulling the connecting member downward, the reaction force of the connecting member urges the main body upward to press the flange against the lower surface of the opening, and at the same time, the pulling force received from the connecting member causes itself to rotate downward. A ventilation fan for a ceiling, characterized in that it is configured so as to maintain a fixed state. 2. The ceiling ventilation fan according to claim 1, wherein the connecting member is formed of a plate material, and a tip end portion of the connecting member is formed as a guide portion that is bent obliquely upward. 3. A body which is inserted into an opening formed in a ceiling and is attached to a mounting frame provided around the opening, wherein the body is provided and abuts a lower surface of a peripheral portion of the opening. A flange, an insertion hole formed in a side surface portion of the main body, and a support member provided inside the main body in the vicinity of the insertion hole so as to be vertically rotatable via an axis. And a proximal end portion of the fastening member is rotatably connected to the fastening member at a position away from the shaft, and is engaged with the upper end portion of the mounting frame on the distal end side to be locked. A connecting member that is provided with a locking claw portion and that is displaceable inward and outward of the main body through the insertion hole; and the connecting member is displaced inward of the main body to form the opening portion. At least with the insertion of the main body into the locking claw portion side The fastening member is configured to be able to pass through the attachment frame, and the fastening member is rotated downward in a state in which the locking claw portion of the coupling member is locked to the upper surface portion of the attachment frame, whereby the coupling member is So that the main body is urged upward by the reaction force to press the flange against the lower surface of the opening portion, and the self maintains the state of being rotated downward by the pulling force received from the connecting member. A ventilation fan for the ceiling, which is characterized in that 4. A body which is inserted into an opening formed in a ceiling and attached to a mounting frame provided around the opening, wherein the body is provided and abuts a lower surface of a peripheral portion of the opening. A flange, an insertion hole formed in a side surface portion of the main body, and a support member provided inside the main body in the vicinity of the insertion hole so as to be vertically rotatable via an axis. Support member and main body that are rotatably connected to the tightening member at a portion distant from the shaft with respect to the tightening member, and that abut on the top surface of the mounting frame on the tip end side. And a connecting member that is displaceable inward and outward of the main body through the insertion hole, the connecting member being displaced inward of the main body. , With the insertion of the main body into the opening At least the supporting portion and the restraining portion are configured to be able to pass through the mounting frame, and the tightening member includes the supporting portion and the restraining portion of the connecting member, respectively, on the upper surface portion of the mounting frame and the outside of the main body. When the connecting member is rotated downward in the state of being brought into contact with the side surface, the connecting member is pulled downward and the reaction body urges the main body upward to press the flange against the lower surface of the opening. A ventilation fan for a ceiling, characterized in that it is configured to hold a state of being rotated downward by a pulling force received from a connecting member. 5. A shaft for rotatably supporting the tightening member with respect to the support member is attached to the tightening member, and a shaft supporting hole of the support member through which the shaft is passed is in the shape of an elongated hole extending in the vertical direction. The recesses that are formed and that support the shaft are formed in a plurality of upper and lower stages on the inner surface of the shaft support hole.
The ventilation fan for ceiling according to any one of 1 to 4.