JPH11211179A - Ventilation fan for duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation fan for a duct that can prevent a screw head from being exposed to the front side of a decoration grill and at the same time eliminates the need for mounting parts such as a cap for hiding the screw head, and enables the placement force of the decoration grill to be adjusted for a ceiling surface. SOLUTION: A body 3 with a blowing machine 4 inside and a mounting means 10 for mounting a decoration grill 6 to the body 3 by a mounting screw 14 are provided, and the mounting means 14 is constituted so that the mounting screw 14 is mounted to the body 3 inside the decoration grill 6 so that the mounting screw 14 cannot be exposed to the front side of the decoration grill 6, thus preventing a screw head from being exposed to the front of the decoration grill 6 and adjusting the mounting force of the decoration grill 6 to a ceiling surface.

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 provided on a ceiling of a living room or a bathroom and is connected to a duct communicating with the outside to exchange air in a living room or a bathroom.

[0002]

2. Description of the Related Art An example of a conventional duct ventilation fan will be described with reference to FIG.

[0003] As shown in the figure, it is installed on a ceiling surface 101, has an opening 103 on the lower surface of a box-shaped main body 102, is provided with a blower 104 and an orifice 105 inside thereof, and a screw is provided on the inner side facing the main body 102. Screw hole 10 serving as an engagement hole
A discharge adapter 112 is provided on the outer periphery of the main body 102 and the outer periphery of the main body 102. The discharge adapter 112 is engaged so as to cover the lower surface opening 103 of the main body 102. Is pulled to the main body 102 by hooking the screw head of the
01, the outer peripheral rising portion of the makeup grill 110 is configured to be in close contact, and a cap 109 is attached to the makeup grill 110 so as to cover the screw head.

In the above configuration, when the blower 104 is operated, dirty air in the room or bathroom is sucked from the makeup grill 110 and discharged to the outside 113 through a duct (not shown) through the adapter 112. On the other hand, the decorative grill 110 is engaged with the orifice 105 with the screw 108 in the screw hole 106 so that the decorative grill 110 can be firmly attached to the ceiling surface 101.

[0005]

In such a conventional ventilation fan for a duct, a decorative grill 1 attached to a main body 102 is provided.
A screw 108 for attaching a decorative grill is provided in a screw hole 1 provided in a decorative grill 110 in order to firmly fix the body 10 to the main body 102.
07, the screw head of the screw 108 protrudes from the surface of the decorative grill 110, so that the appearance is poor. In addition, in order to hide the screw head of the screw 108, another part such as a cap 109 is used. There is a problem that the number of parts is increased because of the attachment to the decorative grill 110.

The present invention has been made to solve the above-mentioned problem, and can prevent the screw head from appearing on the front side of the decorative grille. Further, there is no need to attach a component such as a cap for concealing the screw head. A first object of the present invention is to provide a duct ventilation fan capable of adjusting the mounting force of a decorative grill.

A second object of the present invention is to make it easy to attach the screws for holding the decorative grill and to make sure that the screws can be securely attached.

[0008] A third object is to improve the workability at the time of attaching and detaching the decorative grille by temporarily fixing it.

[0009]

According to the present invention, there is provided a duct ventilation fan according to the present invention, which has a box-shaped body having an opening serving as a suction port formed on a lower surface and a discharge port provided on a side face, and a blower provided therein.
A decorative grill having a shape covering the lower surface opening of the main body; and mounting means for mounting the decorative grill to the main body with mounting screws, wherein the mounting screw is not exposed on the front side of the decorative grill. Wherein the attachment means is configured to be attached to the main body.

According to the present invention, the screw head can be prevented from appearing on the surface of the decorative grill, and there is no need to attach a component such as a cap for hiding the screw head. It is possible to provide a duct ventilation fan capable of adjusting the mounting force.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a box-shaped body having an opening serving as a suction port formed on the lower surface and a discharge port provided on a side face, and a blower provided inside, A decorative grill having a shape covering the lower surface opening of the main body; and mounting means for mounting the decorative grill to the main body with mounting screws, wherein the mounting screws are not exposed on the front side of the decorative grill. It is a configuration of a duct ventilation fan in which an attachment means is configured to be attached to the main body on the inside, and a mounting screw for mounting the decorative grill to the main body is provided through the mounting means inside the decorative grill, The mounting screws can be prevented from being exposed on the front side of the grill.

Also, the present invention has an effect that the decorative grill can be mounted in close contact with the ceiling surface by tightening the mounting screws.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. (Embodiment 1) As shown in FIGS. 1 and 2, an opening 1 serving as a suction port is formed on the lower surface, and a discharge port 2 connected to a duct (not shown) communicating with the outdoor is provided on a side surface. A blower 4 is provided inside a box-shaped main body 3, and an orifice 5 forming an inlet of the blower 4 is provided on the opening 1 side of the main body 3, and inside a bowl-shaped decorative grill 6 covering the opening 1, A mounting means 10 integrally provided with an inverted L-shaped portion 8 having a mounting surface 7 facing the orifice 5 provided on the main body 3 and a mounting portion 9 having a shape along the inner surface of the decorative grill 6 is provided. On the front side, the holding portion 12 is engaged and held in a holding hole 11 provided inside the decorative grille 6, and is fixed to the decorative grille 6 with rivets 13 on the side.

The mounting surface 6 of the mounting means 9 is provided with a through hole 15 for a mounting screw 14, the orifice 5 is provided with a screw hole 16 into which the mounting screw 14 is screwed. An operation hole 17 through which an operation of a driver or the like for loosely tightening the operation hole 14 can be performed is formed.

In the above configuration, the decorative grill 6 is connected to the main body 3.
When opening the body 1, the opening 1 of the main body 3 is covered with the decorative grill 6 such that the insertion hole 15 provided in the mounting surface 7 of the mounting means 10 of the mounting grill 10 faces the screw hole 16 of the orifice 5 provided in the main body 3. , Mounting screws 1 held by a screwdriver, etc.
4 from the operation hole 17 of the decorative grille 6 and
4 is screwed into the screw hole 16 of the orifice 5, and the decorative grill 6
Is attached to the surface of the ceiling 18 in close contact.

As described above, according to the duct ventilation fan according to the first embodiment of the present invention, the mounting means 10 having the insertion hole 15 for the mounting screw 14 is provided inside the front surface of the decorative grille 6, and the mounting screw 14 is connected to the orifice. Since the decorative grille 6 is mounted by screwing into the screw holes 16 provided in the mounting grille 5, the mounting screws 14 are not exposed on the front side of the decorative grille 6,
It is not necessary to provide a cap or the like on the mounting screw 14 so as not to impair the appearance.

Further, by tightening the mounting screws 14, the peripheral edge of the decorative grill 6 is attached in close contact with the surface of the ceiling 18, so that the mounting force of the decorative grill 6 can be adjusted.

(Embodiment 2) As shown in FIG. 3, an insertion hole 15A provided on the mounting surface 7 of the mounting means 10A provided on the decorative grill 6 is formed as an elongated hole.

In the above configuration, the decorative grill 6 is connected to the main body 3.
When the mounting is performed, the position adjustment can be easily performed because the insertion hole 15A is a long hole when the insertion hole 15A is aligned with the screw 16 provided in the orifice 5.

As described above, according to the duct ventilation fan of the second embodiment of the present invention, since the insertion hole 15A provided in the mounting surface 7 of the mounting means 10A is formed as a long hole, the decorative grill 6
At the time of mounting, the fitting operation for matching the screw hole 16 provided on the body 3 side with the insertion hole 15A provided on the decorative grille 6 side becomes easy, and the mounting workability is improved.

(Embodiment 3) As shown in FIG. 4, the mounting means 10B provided on the decorative grill 6A is provided at an oblique position deviated from the facing position, and a bifurcated mounting spring 19 is provided. The orifice 5A provided on the main body 3 is disposed on the side of the mounting means 10B through the mounting means 10B.
A screw hole 16A is provided at a position where the mounting surface 7 of B faces, and an engaging portion 21 with which the mounting spring 19 is engaged is formed at a position where the mounting spring 19 of the orifice 5A faces.

In the above configuration, when the decorative grill 6A is attached to the main body 3, the width is set so that the open attachment spring 19 provided on the decorative grill 6A is engaged with the engaging portion 21 formed in the orifice 5A of the main body 3. After being reduced and inserted and temporarily fixed by the elastic force of the mounting spring 19, the decorative grill 6
A mounting screw 1 in the insertion hole 15A of the mounting means 10B provided in
4 is screwed into the screw hole 16A provided in the orifice 5A, and the decorative grill 6A is attached.

Thus, according to the duct ventilation fan of the third embodiment of the present invention, the mounting spring 19 is provided on the side of the decorative grille 6A for temporarily fixing the decorative grille 6A, and the mounting spring 19 is provided on the side of the main body 3. Since the matching engaging portion 21 is provided, the decorative grill 6A is temporarily fixed by the mounting spring 19, so that the decorative grill 6A is prevented from dropping without supporting the decorative grill 6A, and the mounting screw 14 can be used to mount the decorative grill 6A. Thus, large labor is not required, and workability at the time of attaching and detaching the decorative grill 6A is improved.

[0024]

As is clear from the above embodiment,
According to the present invention, an opening serving as a suction port is formed on the lower surface, a box-shaped main body provided with a blower inside with a discharge port provided on a side surface, and a decorative grill having a shape covering the lower opening of the main body,
Mounting means for mounting the decorative grill to the main body with mounting screws, wherein the mounting means is configured to be mounted to the main body inside the decorative grill so that the mounting screw is not exposed to the front side of the decorative grill. So
A ventilation fan for ducts that can prevent the screw head from appearing on the front side of the makeup grille, eliminate the need to attach caps and other parts to hide the screw head, and adjust the mounting power of the makeup grille to the ceiling surface Can be provided.

Also, since the through holes for the mounting screws provided on the mounting surface of the mounting means are formed as long holes, it is easy to match the screw holes provided on the main body side with the mounting holes provided on the decorative grille side. The mounting workability is improved.

[0026] Further, the makeup grill is provided with a bifurcated openable mounting spring, an engaging portion of the mounting spring is formed on the main body side, and the makeup grill is temporarily fixed by the mounting spring and the engaging portion. As a result, even if the makeup grill is not supported, the makeup grill is prevented from dropping, so that a large amount of labor is not required, and workability when attaching and detaching the makeup grill is improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a mounting state of a decorative grill in a duct ventilation fan according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a main body of the ventilation fan for the duct and a decorative grill.

FIG. 3 is a perspective view showing a configuration of a decorative grill in a duct ventilation fan according to a second embodiment of the present invention.

FIG. 4 is a perspective view showing a configuration of a decorative grill in a duct ventilation fan according to a third embodiment of the present invention.

FIG. 5 is a perspective view showing a configuration of a makeup grill and a main body of a conventional duct ventilation fan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening part 2 Discharge port 3 Main body 4 Blower 6 Decorative grill 6A Decorative grill 7 Mounting surface 10 Mounting means 10A Mounting means 10B Mounting means 14 Mounting screw 15A Insertion hole 19 Mounting spring 21 Engaging part

Claims (3)

[Claims] 1. A box-shaped main body having an opening serving as a suction port formed on a lower surface thereof and a discharge port provided on a side surface thereof, a decorative grill having a shape covering the lower opening of the main body,
Mounting means for mounting the decorative grill to the main body with mounting screws, wherein the mounting means is configured to be mounted to the main body inside the decorative grill so that the mounting screw is not exposed to the front side of the decorative grill. Duct ventilation fan. 2. The ventilation fan for a duct according to claim 1, wherein an insertion hole of the mounting screw provided on the mounting surface of the mounting means is formed as an elongated hole. 3. A structure in which a decorative grille is provided with a forked openable mounting spring, an engaging portion of the mounting spring is formed on the main body side, and the decorative grill is temporarily fixed by the mounting spring and the engaging portion. The ventilation fan for ducts according to claim 1 or 2.