JPH05106895A - Ventilating fan for duct - Google Patents

Abstract

PURPOSE:To improve a workability in operation by a method wherein a fixing adjustment can easily be performed to eliminate any clearance against a ceiling material after a duct ventilating fan is fixed to a ceiling wall and a tape adhering work for preventing air in its body from leaking into a garret. CONSTITUTION:A frame member 9 which can be moved in a vertical direction is installed at a suction port 2 at a lower surface of an outer frame 4 of a main body 1. A frame side guiding part 19 is installed at an inner side surface of the frame 9, and a main body side guiding part 22 fitted to the frame side guiding part 19 is installed within the outer frame 4. Either one of the frame side guiding part 19 or the main body guiding part 22 is provided with a long hole 11 directed in a vertical direction and the other one is provided with some small holes for use in fixing with small screws together with the long hole 11. With such an arrangement, a position adjustment of the frame 9 can easily be carried out and at the same time a clearance for communicating an inside part of the main body 1 with a garret is not generated when this position adjustment is performed, a tape adhering work for preventing any air leakage can be eliminated and a workability in operation can be substantially improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan for a duct, which is mainly installed on the ceiling and is connected to a duct communicating with the outside to replace indoor air.

[0002]

2. Description of the Related Art Conventionally, a duct ventilation fan that is used by connecting a duct to a main body behind the ceiling is used by suspending the main body from the ceiling wall and performing duct piping work.
Since the ceiling material is stretched and then the main body is adjusted to the position of the ceiling material, a configuration that facilitates this adjustment work has been desired.

For this reason, the conventional duct ventilation fan of this type generally has the structure shown in FIGS. 4 and 5. That is, the main body 101 has the suction port 102 on the lower surface,
A box-shaped outer frame 104 having a discharge port 103 on one side,
The blower 107 includes an electric motor 106 that is housed inside the outer frame 104 and has the blades 105 fixed thereto. The blower 107 is attached to the suction port 102 on the lower surface so as to come into contact with the inner side surface of the outer frame 104 and move up and down. Then, a frame body 109 that connects the indoor space 108 and the suction port 102 to each other and is provided with a decorative frame stopper 116 on the inner side surface is attached. Further, the indoor side opening end of the frame body 109 has a frame body 109 A decorative frame mounting spring 11 is attached to the decorative frame stopper 116 provided on the inner side surface.
The decorative frame 110 can be attached by attaching 7. The main body 101 and the frame body 109 are fixed to each other by a screw hole 118 provided on the side surface of the outer frame 104 of the main body 101 at a position corresponding to the screw hole 118 on the side surface of the frame body 109 and long in the vertical direction. This is done by screwing a screw 112 through the long hole 111.

In the above structure, the duct ventilation fan is suspended from the ceiling surface 113, the duct 114 is plumbed, the ceiling material 115 is stretched, and then the main body 101 is adjusted to the position of the ceiling material 115. Loosens the screw 112 fixing the frame 109 to the outer frame 104, lowers the frame 109 to the position of the ceiling material 115, tightens the screw 112 again, and further, the slot 11 of the frame 109.
In the case of No. 1, since the space behind the ceiling and the inside of the main body 101 are communicated with each other, the tape 1 is covered with tape 119 or the like. As described above, the adjustment of the positions of the duct ventilation fan and the ceiling material 115 was performed easily and surely.

[0005]

In such a conventional duct ventilation fan, the frame body 109 facilitates the adjustment of the positions of the main body 101 and the ceiling material 115, but the frame body 1
09 and the elongated hole 111 having the function of adjusting and fixing the main body 101 need to be covered with a tape 119 or the like, which increases the time and labor required for the construction.
If the work of closing with 19 or the like is insufficient or omitted, dirty air leaks from the long hole 111 to the outside of the main body 101 and fills the back of the ceiling, and further, from the gap of the ceiling material 115 to the indoor space 108. There was a problem of reflux. In addition, there is a problem that the number of parts is increased because a decorative frame stopper 116 must be provided on the inner surface of the frame body 109 in order to mount the decorative frame 110 on the indoor side.

The present invention solves the above problems and is for a duct that is easy to install and that does not allow air inside the body to leak back into the ceiling and flow back into the indoor space without the need for tape sticking work. A first object is to provide a ventilation fan.

A second object is to provide a duct ventilation fan in which the number of parts is reduced and the assembling work is facilitated.

[0008]

A first means for achieving the first object of the present invention is a box-shaped outer member which is installed on the back of a ceiling and has a suction port on the lower surface and a discharge port on one side surface. A main body consisting of a frame and a blower equipped with an electric motor which is housed inside the outer frame and has fixed blades, and is attached to the inner surface of the outer frame at the suction port so as to be movable in the vertical direction, and the indoor space and the suction port. A frame body that communicates with the mouth and a decorative frame that is attached to the inside of the frame body. A frame body side guide portion is provided on the inner side surface of the frame body, and the frame body side is inside the outer frame of the main body. A main body side guide part that fits with the guide part is provided,
A duct ventilation fan having a vertically long slot in one of the frame side guide section and the main body side guide section, and a screw hole for screwing in the other side with the slot. is there.

The second means for achieving the first object is to provide the frame body guide portion and the main body guide portion only at two opposing positions, and to adjust the outer size of the frame body to the inside of the main body. The size is slightly smaller than the dimension, and packing is provided in the gap.

A third means for achieving the first object is to provide the frame body guide portion and the main body guide portion only at two opposing positions, and to provide the frame body side guide portion of the frame body. A convex portion protruding inward is provided on the upper end portion of the inner side surface, and a stopper is provided on the outer frame so as to contact the convex portion when the frame body moves to the lowest point.

A fourth means for achieving the second object is configured such that the frame side guide portion has a locking hole for locking a decorative frame mounting spring provided on the decorative frame. Is.

[0012]

According to the present invention, by the construction of the above-mentioned first means, the main body is hung from the ceiling surface, the duct piping work is performed, the ceiling material is stretched, and then the main body is adjusted to the position of the ceiling material. For the work, by loosening the screw fixing the main body and the frame body, the frame body can be adjusted in the vertical direction within the range of the elongated hole provided in the frame body side guide part, and then this screw By tightening, the frame can be fixed at any position. Moreover, the position adjustment of the frame body is performed by fitting the main body side guide portion provided on the main body to the frame body side guide portion provided on the inner side surface of the frame body, and at the same time, for fixing the screws. Since the holes are provided in the frame-side guide section or the main body side guide part, the inside of the main body does not communicate with the back of the ceiling due to this long hole, so the long hole can be covered with tape etc. Also, the air inside the main body does not leak to the back of the ceiling and can be prevented from flowing back into the indoor space.

Further, by the constitution of the second means, not only the vertical position adjustment of the frame body but also a slight angle adjustment can be performed, and it is possible to cope with a ceiling material having an inclination.

Further, according to the structure of the third means, the frame guide portion and the main body guide portion are fixed only at two opposing positions, so that the mounting work is reduced, and the frame body is provided outside the main body. When it moves to the lowest point with respect to the frame, the convex part does not come off the outer frame by contacting the stopper, so that between the lower end of the outer frame and the upper end of the frame body, inside the main body and the ceiling Since there is no gap for communicating the air, it is possible to prevent the air in the main body from flowing back into the indoor space.

Further, according to the structure of the fourth means, the frame side guide portion is provided with the elongated hole for locking the decorative frame attaching spring provided on the decorative frame. Therefore, a dedicated member for mounting the decorative frame is provided. Since it is not necessary to provide the component, the number of parts can be reduced.

[0016]

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

As shown in the figure, the main body 1 is a box-shaped outer frame 4 having a suction port 2 on the lower surface and a discharge port 3 on one side, and is housed inside the outer frame 4 and has blades 5. Electric motor 6 stuck
The blower 7 is provided with a blower 7 having an outer size slightly smaller than the inner size of the outer frame 4 and is movably mounted in the vertical direction to form an indoor space 8 and a suction port 2. A frame body 9 is provided for communication. In addition, on the inner side surface of the frame body 9, a gap opening upward is formed between the inner side surface and the inner side surface, and the frame body side guide portion 19 is defined as the insertion opening 19a.
The frame-side guide portion 19 is provided with a long hole 11 that is long in the moving direction, that is, the vertical direction, and a decorative frame attachment provided on the decorative frame 10 that is detachably attached to the indoor opening end of the frame body 9. A locking hole 16 for locking the spring 17 is provided. The frame side guide portion 19 is provided only on the two inner side surfaces of the frame body which face each other. A convex portion 20 that protrudes inward is provided at the upper end portion of the opposing inner side surface of the frame body 9 that does not include the frame body side guide portion 19, and the outer surface has a gap with the inner peripheral surface of the outer frame 4. A packing 21 that fills the area is attached. Further, inside the outer frame 4 of the main body 1, a main body side guide portion having a screw hole 18 which is inserted and fitted into the insertion opening 19a of the frame body side guide portion 19 and is screwed into the screw 12 passed through the elongated hole 11 is formed. 22 is provided. Further, at a position corresponding to the convex portion 20 inside the outer frame 4, the stopper 2 that comes into contact with the convex portion 20 when the frame body 9 moves to the lowest point with respect to the outer frame 4.
Equipped with 3. In the figure, 14 is a duct for communicating the inside of the main body 1 with an outdoor space (not shown), 13 is a ceiling wall, 1
5 is a ceiling material.

With the above structure, the main body 1 is suspended from the ceiling wall 13, the duct 14 is piped, and then the ceiling material 15 is formed.
In order to adjust the main body 1 to the position of the ceiling member 15, the frame side guide portion 19 provided on the frame body 9 and the main body side guide portion 22 provided on the main body 1 are fixed. This can be completed by loosening the screws 12 present and lowering the frame 9 to the position of the ceiling material 15 and tightening the screws 12 again.

As described above, according to the duct ventilation fan of this embodiment, the position adjustment for eliminating the gap between the main body 1 and the ceiling material 15 is performed by the elongated hole 11 provided in the frame 9. Since the elongated hole 11 is provided in the frame-side guide portion 19 attached to the inner side surface of the frame 9, the tape is provided to prevent air leakage without allowing the inside of the main body 1 to communicate with the inside of the ceiling. The oblong hole 11 does not need to be covered with, etc., construction becomes easy, and tape work is insufficient,
If it is omitted, dirty air leaks from the inside of the main body 1,
There is no possibility of filling the space behind the ceiling and backflowing into the indoor space 8 from the gap of the ceiling material 15 or the like.

The frame side guide portion 19 has a decorative frame 10
Slot 16 for locking the decorative frame mounting spring 17 provided on the
Therefore, it is not necessary to provide the frame body 9 with a dedicated component for attaching the decorative frame 10.

As described above, according to the duct ventilation fan of this embodiment, the number of parts can be reduced and the assembling work can be facilitated.

Further, each of the frame body guide portion 19 and the main body guide portion 22 is provided only on two opposing surfaces of the inner side surface of the outer frame 4 or the inner side surface of the frame body 9, and the outer size of the frame body 9 is set to the main body 1. Since it is made slightly smaller than the inner dimension of the outer frame 4 and the packing 21 is attached to the outer surface of the outer frame 4 in the gap, the frame body can be adjusted not only in the vertical position but also in a slight angle. It can also be used for sloped ceiling materials.

As described above, according to the duct ventilation fan of this embodiment, when the clearance between the main body 1 and the ceiling material 15 is adjusted, the frame 9 can be adjusted in vertical position and angle. Therefore, it can be applied to the ceiling structure of any building form and the construction becomes easy.

Further, each of the frame body guide portion 19 and the main body guide portion 22 is provided only on the two opposing surfaces of the inner side surface of the outer frame 4 or the inner side surface of the frame body 9, and the inner side 19 of the frame body 9 on the frame body side is provided. A convex portion 20 that protrudes inward is provided on the upper end portion of the inner side surface that is not included, and there is a stopper 21 on the main body 1 side that comes into contact with the convex portion when the frame body 9 moves to the lowest point with respect to the outer frame 4. Even if the frame body 9 is moved to the lowest point, it does not come off from the outer frame 4, so that there is no gap between the lower end portion of the outer frame 4 and the upper end portion of the frame body 9, and Does not communicate with the attic.

As described above, according to the duct ventilation fan of the present embodiment, the work of adjusting the gap between the main body 1 and the ceiling material 15 is completed without communicating the inside of the main body 1 with the ceiling space. Will be easier.

In this embodiment, the frame side guide portion 19 is
The elongated hole 11 is provided in the up-down direction and the screw hole 18 is provided in the main body side guide portion 22. However, the screw hole is provided in the frame body side guide portion, the elongated hole is provided in the main body side guide portion, and the outer periphery of the frame body side guide portion is provided. Even if the parts and the inner peripheral part of the main body side guide part are fitted so as to come into contact with each other, there is no difference in their action and effect.

[0027]

As is apparent from the above-described embodiments, according to the present invention, the work of adjusting the position so as to eliminate the gap between the main body and the ceiling material is performed by using the long holes provided for screwing.
Since it is formed on the frame body side guide portion provided on the inner side surface of the frame body or the main body side guide portion provided inside the outer frame, it is completed without connecting the inside of the main body and the ceiling above Since the oblong hole does not need to be covered, the construction is easy, and the tape work is insufficient or omitted, dirty air leaks from the inside of the main body, filling the ceiling above the ceiling. It is possible to provide a ventilation fan for a duct that does not flow back into the indoor space from a gap or the like in the ceiling material.

Further, by making the outer size of the frame slightly smaller than the inner size of the outer frame of the main body and providing a packing in the gap, the frame can be adjusted not only in the vertical position but also in the angle. Therefore, it can be used for ceiling materials with slopes,
Construction becomes easy.

Further, by providing the convex portion on the frame body with the stopper on the main body, even if the frame body is moved to the lowest point, it does not come off from the main body, and therefore, the lower end portion of the outer frame and the upper end portion of the frame body are Since there is no gap between the main body and the ceiling material, the work of adjusting the gap between the main body and the ceiling material is completed easily and surely without connecting the inside of the main body and the ceiling space.
Workability is greatly improved.

Further, since the member for stopping the decorative frame also serves as the frame side guide portion, the number of assembling parts is reduced and the assembling workability is improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a duct ventilation fan according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

[Fig. 3] Installation state diagram on the same ceiling material

FIG. 4 is a sectional view of a conventional duct ventilation fan.

FIG. 5 is an exploded perspective view of the same.

[Explanation of symbols]

 1 Main Body 2 Suction Port 3 Discharge Port 4 Outer Frame 5 Blades 6 Electric Motor 7 Blower 8 Indoor Space 9 Frame Body 10 Decorative Frame 11 Long Hole 16 Locking Hole 17 Decorative Frame Mounting Spring 18 Screw Hole 19 Frame Side Guide 20 Convex Section 21 packing 22 main body side guide 23 stopper

Claims (4)

[Claims] 1. A main body comprising a box-shaped outer frame, which is installed on the back of the ceiling and has a suction port on the lower surface and a discharge port on one side, and an electric motor housed inside the outer frame and having blades fixed thereto. And a frame body that abuts on the inner surface of the outer frame at the suction port and is movably mounted in the vertical direction, and connects the indoor space with the suction port, and a decorative frame mounted on the indoor side of the frame body. A frame body side guide portion is provided on the inner side surface of the frame body, and a main body side guide portion that fits with the frame body side guide portion is provided in the outer frame of the main body, and the frame body side guide portion and the main body side are provided. A duct ventilation fan having a vertically elongated slot in one of the guide portions and a screw hole in the other for fastening with the elongated hole. 2. The frame body guide portion and the main body guide portion are respectively provided only at two opposing positions, the outer dimension of the frame body is made slightly smaller than the inner dimension of the main body, and packing is provided in the gap. Ventilation fan for the described duct. 3. A frame guide portion and a main body guide portion are provided only at two opposing locations, and a convex portion projecting inward is provided at an upper end portion of an inner side surface of the frame body which does not include the frame body side guide portion. At the same time, the duct ventilation fan according to claim 1, wherein the outer frame is provided with a stopper that comes into contact with the convex portion when the frame body moves to the lowest point. 4. The duct ventilation fan according to claim 1, wherein the frame side guide portion has a locking hole for locking a decorative frame mounting spring provided on the decorative frame.