JP2573710Y2 - Pipe ventilation fan - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating fan for a pipe which can be ventilated by forming a hole in a wall or a ceiling, inserting a pipe into the hole, and inserting a ventilation fan body into the pipe. It is.

[0002]

2. Description of the Related Art Conventionally, in a pipe ventilation fan which is used by being inserted into and attached to a pipe, a cylindrical main body is accommodated in a limited space inside the pipe. Therefore, the outer circumference of the main body is close to the inner circumference of the pipe in order to secure a slightly large ventilation path so that the performance is effectively obtained, and when inserting the main body into the pipe, the power supply wire and the blade of the motor do not hit the pipe. In this way, they are fixed with a cord clip or the blades are protected by a peripheral wall. Also, it is required that the outlet of the power cord can be selected up and down depending on the position of the pipe ventilation fan and the outlet.

FIGS. 7 to 9 show such a conventional pipe ventilation fan. As shown in the figure, a pipe 101 is inserted into and attached to a hole 103 provided in a chamber wall 102.
A ventilation fan for a pipe is inserted and attached to one end of 1. The pipe ventilation fan includes a cylindrical main body 106 for holding an electric motor 105 to which the blades 104 are fixed, and a louver 107 for forming a suction port on the indoor side of the main body 106.
And a mounting spring 108 fixed to the outer periphery of the main body 106.
It is composed of The electric wire 109 coming out of the electric motor 105 is fixed to the electric motor 105 by a cord clip 110 fixed to the main body 106, and the blade 104 is surrounded by the peripheral wall of the main body 106. Further, a cord 112 having an insertion plug 111 at the tip is pulled out from the main body 106.

[0004]

In such a configuration of the conventional pipe ventilation fan, in order to fix the electric wire 109 of the electric motor 105, first, the cord clip 110 is attached to the main body 106, and then the electric wire 109 is processed. Therefore, there is a problem that it takes time to assemble the pipe ventilation fan. In addition, depending on the installation work, the spiral duct is often handled in addition to the pipe 101. If the cut end is sharp or bent inward, the tip of the spiral duct contacts the blade 104 when the pipe ventilation fan is installed. There was fear. In addition, after the ventilator for a pipe was attached to the pipe, if the outlet was located at a lower position, the cord 112 would be dropped from above, making it unsightly. In this case, the pipe ventilation fan may be mounted in reverse, but the louver 107 has an up-down direction and cannot be used.

An object of the present invention is to solve the above-mentioned problem, and a first object of the present invention is to provide a pipe ventilation fan which can easily fix and protect an electric wire of a motor without using a cord clip.

A second object is to prevent the tip of the spiral duct from contacting the blade when inserting the pipe ventilation fan into the spiral duct.

A third object is to attach a louver even when the main body is reversely mounted so that the power cord can be taken out from below.

[0008]

In order to achieve the first object, the pipe ventilator of the present invention has the first means mounted in a pipe inserted and arranged in an opening provided in a chamber wall. And a frame provided at an outdoor end of the main body and holding a motor for driving the blades. The frame is provided with an electric wire for drawing out the motor, and an outer peripheral surface of the motor. Are provided with projections to be sandwiched along.

[0009] In order to achieve the second object,
The second means is a cylindrical main body mounted in a pipe inserted and arranged in an opening provided in the chamber wall, and a frame provided at an outdoor end of the main body and holding a motor driving the blades. And a body, wherein an outside portion of the blade of the main body is opened to form an air passage, and a claw projecting from the air passage and located outside the blade is provided.

[0010] A third means for achieving the third object is a cylindrical main body mounted in a pipe inserted and arranged in an opening provided in a chamber wall, and an indoor side of the main body. A flange portion extending outward at an end portion, a peripheral wall having an outer peripheral portion of the flange portion protruding toward the indoor side, and an electric motor which is provided at an outdoor end portion of the cylindrical main body and drives a blade is held. And a louver that is provided so as to be fitted to the outer peripheral portion of the peripheral wall, has a ventilation opening in the center, and covers the cylindrical main body from the indoor side. A first U-shaped groove and a second U-shaped groove which are open on the circumferential side and the indoor side are provided at locations, and correspond to the first U-shaped groove and the second U-shaped groove of the louver. The first notch and the second notch are provided at the positions where The second U-shaped groove is formed so as to communicate with the screw so as to penetrate therethrough, a nut mounting groove for accommodating a nut is provided, and a power cord outlet is provided in the first U-shaped groove. The mounting direction is selectable, and the first U-shaped groove or the second U-shaped groove of the main body is
The louver has a configuration in which either the first notch or the second notch can be selected.

[0011]

According to the first aspect of the present invention, the electric wire of the electric motor is sandwiched between the claw and the electric motor along the outer peripheral surface of the electric motor.

According to the configuration of the second means, when the ventilation fan for a pipe is inserted into the spiral duct, the claw prevents the tip of the spiral duct from entering the cylindrical main body.

Further, according to the configuration of the third means, when the power cord is to be pulled out from above, whereas when the power cord is to be pulled out from above, the louver can be mounted normally even if the main body is reversed.

[0014]

1 and 2 show a first embodiment of the present invention.
This will be explained based on As shown in the drawing, the blades 3 are inserted from the indoor side of a pipe 2 inserted and arranged in an opening provided in a chamber wall 1.
And a cylindrical main body 5 having openings at the indoor end and the outdoor end is inserted and mounted. A flange 6 extends outward from the indoor side end of the main body 5, and a louver 7 that fits on the outer peripheral portion of the flange 6 and covers the indoor opening of the main body 5 from the indoor side is provided. A frame 8 for holding the electric motor 4 is provided at the outdoor end of the main body 5, and an electric wire 9 drawn out from the electric motor 4 is arranged on the frame 8 between the electric motor and the electric motor 4 along a jacket of the electric motor 4. Protrusions 10 to be sandwiched are provided, and the electric wires 9 are routed between the jacket of the electric motor 4 and the protrusions 10.

In the above configuration, when assembling the pipe ventilation fan, the electric wire 9 of the motor 4 is connected to the jacket of the motor 4 and the projection 1.
It is fixed between 0 and does not hit the pipe 2 when it is inserted into and attached to the pipe 2, and is not exposed to the ventilation, so that the oily dust and the like do not adhere and the insulation is deteriorated. In this case, it is not necessary to largely bend the wire 9 only along the jacket of the electric motor 4.

As described above, according to the first embodiment of the present invention,
The treatment of the wire 9 eliminates the time-consuming cord clip,
It can be easily fixed between the jacket of the electric motor 4 and the projection 10 and also serves to protect the electric wire 9.

Next, a second embodiment of the present invention will be described with reference to FIG.
A description will be given based on FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the second embodiment, the air passage 17 is formed by opening the main body 5 located outside the blade 3, and projects from the edge of the air passage 17 into the air passage 17. Is provided.

In the above configuration, the ventilation passage 17 is formed to reduce the ventilation resistance, and when the ventilation fan for a pipe is inserted into the spiral duct, the claw 18 is formed even if the cut end of the spiral duct is bent inward. Prevents the intrusion into the main body 5 and protects the blade 3.

Thus, according to the second embodiment of the present invention,
Even if the ventilation path is increased in order to reduce the ventilation resistance, when a spiral duct other than the pipe 2 is used in the installation work, the tip of the spiral duct is prevented from entering the inside of the main body 5 and the blade 3 Contact can be prevented.

Next, a third embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the third embodiment, a peripheral wall 19 is provided which protrudes the outer peripheral portion of the flange portion 6 of the main body 1 toward the indoor side. A first U-shaped groove 20a and a second U-shaped groove 20b are provided, a first notch 24a is provided in a portion of the louver 25 corresponding to the first U-shaped groove 20a, and a second U-shaped groove is provided. A bag-shaped nut mounting groove 22 communicating with the U-shaped groove 20b so that the mounting screw 26 penetrates and opening the outdoor side surface of the flange portion 6
Are provided to accommodate the nuts 21 and the first U-shaped groove 2
0a is provided with a power cord outlet 23, and is fitted to the outer peripheral portion of the peripheral wall 19, and has a louver 2 having an opening for ventilation at the center.
5, a first notch 24a is provided at a position corresponding to the first U-shaped groove 20a, and a second notch 24b is provided at a position corresponding to the second U-shaped groove 20b. When the mounting screw 26 passing through the notch 24b and the second U-shaped groove 20b is screwed to the nut 21, the peripheral wall 19 is
It is fixed to.

In the above configuration, if the outlet 27 is located above the tubular main body 5 when the pipe ventilation fan is attached, as shown in FIG.
The main body 5 is inserted into the pipe 2 so that the power cord outlet 23 is located above. When the outlet 27 is located below the main body 5, as shown in FIG.
The main body 5 is inverted and inserted into the pipe 2 so that the power cord outlet 23 is located downward, and thus the mounting direction of the main body 5 can be selected. If the louver 25 has a direction when attached to the louver 25, the louver 25 is inserted into the first U-shaped groove 20 a or the second U-shaped groove 20 b of the main body 5.
Of the first notch 24a and the second notch 24b.

As described above, according to the third embodiment of the present invention, the mounting direction of the louver 25 can be always fixed in a predetermined mounting direction with respect to the main body of the selection itself depending on the position of the plug socket 27.

Although the power cord outlet 23 is selected up and down in the embodiment, it goes without saying that the power cord outlet 23 may be selected left and right.

[0026]

As is apparent from the above embodiment, according to the present invention, the electric wire of the electric motor is formed along the outer peripheral surface of the electric motor by the projection provided on the frame holding the electric motor and the electric motor. Since it is sandwiched and fixed and protected, there is no need to attach a cord clip, the number of assembling steps of the pipe ventilation fan is reduced, and the electric wires are not damaged or the insulation is deteriorated. Also, by opening the outside of the blades of the main body to form a ventilation path and providing a claw that protrudes in this ventilation path, the claw can be inserted even when a pipe ventilation fan is inserted into the spiral duct and installed. To prevent the intrusion into the main body and the contact with the blade. Further, first and second U-shaped grooves are provided at two opposing positions of the main body, and the first and second U-shaped grooves are provided.
By providing a louver having first and second notches at positions corresponding to the groove, even if the main body is mounted by turning the power cord outlet by 180 ° depending on the position of the plug socket, the louver is oriented in that direction. Can be installed in a unified manner.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state in which a pipe ventilation fan according to a first embodiment of the present invention is mounted on a wall.

FIG. 2 is a perspective view of the pipe ventilation fan as viewed from the rear.

FIG. 3 is a sectional view showing a state in which a pipe ventilation fan according to a second embodiment of the present invention is mounted on a wall;

FIG. 4 is a perspective view of the pipe ventilation fan as viewed from the rear.

FIG. 5 is a sectional view showing a state in which a pipe ventilation fan according to a third embodiment of the present invention is mounted on a wall.

FIG. 6A is a front view of the louver. FIG. 6B is a front view of the pipe ventilation fan from which the louver has been removed. FIG. Front view of pipe ventilation fan with louver removed

FIG. 7 is a sectional view showing a state in which a conventional pipe ventilation fan is attached to a wall.

FIG. 8 is a perspective view of the pipe ventilation fan as viewed from the rear.

9A is a front view of the louver. FIG. 9B is a front view of the pipe ventilation fan with the louver removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Room wall 2 Pipe 3 Blade 4 Electric motor 5 Main body 6 Flange part 7, 25 Louver 8 Frame body 9 Electric wire 10 Projection 17 Ventilation path 18 Claw 19 Peripheral wall 20a First U-shaped groove 20b Second U-shaped groove 21 Nut 22 Nut Mounting groove 23 Power cord outlet 24a First notch 24b Second notch 26 Mounting screw

Claims (3)

(57) [Scope of request for utility model registration] Holding and 1. A cylindrical body is mounted in the pipe inserted disposed in an opening provided in the chamber wall, provided in the outdoor-side end portion of the body of this, the electric motor driving the blades An electric wire for drawing out the motor.
The pipe ventilation fan provided with a projection for sandwiching the same along the outer peripheral surface of the electric motor . 2. A tubular body which is mounted in a pipe in inserted disposed opening in the chamber wall, set shading to the outdoor side end of the body of this, the electric motor driving the blades And a frame body for holding, and opening an outer portion of the blade of the main body to allow ventilation.
A ventilation fan for a pipe , which forms a passage and has claws protruding into the ventilation passage and located outside the blade. 3. A cylindrical body is mounted in the pipe inserted disposed in an opening provided in the chamber wall, and a flange portion that extends outward into the indoor-side end portion of the body of this, A peripheral wall provided with an outer peripheral portion of the flange portion protruding toward the indoor side, a frame provided at an outdoor end of the cylindrical main body and holding an electric motor for driving a blade, and fitted to an outer peripheral portion of the peripheral wall. A louver that has an opening for ventilation in the center and covers the cylindrical body from the indoor side, and has a circumferential outer side and an indoor side at two opposing locations on the peripheral wall. provided with a the first U-shaped groove and a second U-shaped groove, the first notch and the second switch to a position corresponding to said first U-shaped groove and a second U-shaped groove of the louver A notch is provided, and the flange portion is formed in a bag shape with an outdoor side surface opened, so that the second U-shaped groove and the screw penetrate therethrough. A nut mounting groove for receiving the nut is provided, and a power cord outlet is provided in the first U-shaped groove so that the mounting direction of the main body can be freely selected.
Pair to the first U-shaped groove or the second U-shaped groove of the body
A ventilator for pipes, which can select which of the first notch and the second notch of the louver is to be used.