JPS61159038A - Ventilating fan - Google Patents

Abstract

PURPOSE:To improve the interiority in operating time and obtain the excellent cleaning ability by a method wherein a decorative plate is opened and closed by a timing motor, filters are provided at the front and rear part of a blower, those components are enabled to remove easily from a main body frame. CONSTITUTION:A decorative frame 1 is fitted to a main body frame 1 by engaging protrusions 8, 8' of the main body frame 1 with recessed parts 9, 9' of the decorative frame 7. A front part filter 11 is fixed on the front surface of the decorative frame 7 in freely attachable and detachable manner, and a rear part filter 38 is fixed on a cylindrical part 37 of a frame body 36 in same manner. A decorative plate receiving plate 12 is fixed on the main body frame 1 in freely pivotable manner, a decorative plate 15 is fixed integrally on the decorative plate receiving plate 12 for preventing from removing. An inductor type synchronizing mode timing motor 26 is fixed at the end part of a supporting body 21, a lever 27 is fixed on an output shaft 34. On the lever 27, a supporting shaft 28 is provided on the location having a specific distance from the output shaft 34, the supporting shaft 28 is engaged with the other end of a ring 25 by a loose journal bearing.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention is characterized in that the front surface is covered with a decorative panel that can be opened and closed;
The present invention also relates to a ventilation fan that can be easily cleaned. 5 (Background of the Invention) - Conventional ventilation fans include (1) a decorative frame that is removably attached to a main body frame that is incorporated into a room wall, and a decorative frame that can be opened and closed on the front side of the ventilation fan, as described in JP-A No. 59-44535; It is covered with a board, uses a drawstring to open and close the decorative board, and has a switch that turns on and off the blower motor in response to the opening and closing of the decorative board.However, this With this configuration, the rotation of the blower blades can be seen from the indoor side during operation, which poses a problem in terms of appearance during operation, that is, the interior quality.Also, it is difficult to easily clean the blower blades, surrounding areas, and rear shutter due to dirt. As expected, the drawback was that it was not easy to clean.

[Purpose of the invention]

The present invention solves the above-mentioned problems and provides a ventilation fan that improves the interior appearance during operation and allows for easy cleaning of the fan blades, surrounding areas, and other areas.

[Summary of the invention]

The present invention opens and closes the decorative board using a timing motor that is linked to the operation and stopping of the blower, provides filters before and after the blower, and allows the decorative board, filter, blower, and timing motor to be easily removed from the ventilation fan body frame. It is characterized by its unique structure.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

FIG. 1 is a perspective view showing the outline of the present invention, and FIG. 2 is a longitudinal cross-sectional view showing the state in which the invention is attached to a wall.

The main body frame 1 is assembled into a wooden frame 3 provided in a ventilation hole bored in the room wall 2, and by screwing bolts 47 into the main body frame 1, the reaction force pushes the main body frame 1 downward in Fig. 2. A main body frame 1 is fixed to a wooden frame 3. The support body 21 is screwed onto a seat 22.degree. 22' provided in the main body frame 1 with a screw 23, and a well-known blower 6 consisting of blades 4 and an electric motor 5 is fixed to the support body 21.

The decorative frame 7 has 9 protrusions 8 provided at the upper and lower parts of the main body frame 1,
8' and recesses 9, 9' provided in the decorative frame 7 fit together, thereby fitting into the main body frame 1.

The center part of the decorative frame 7 forms a bell mouth 10,
A front filter 11 is detachably attached to the front of the decorative frame 7.

In FIG. 3, the decorative laminate receiving plate 12 is attached to the main body by pivoting the receiving plate bracket 13.13' provided on the decorative laminate receiving plate 12 and the bracket 14.14' provided on the front upper part of the main body frame 1. It is rotatably attached to frame 1. cation
The upper edge 12u of the plate receiving plate 12 fits into the hook portion 16 of the decorative plate 15, and the lower edge 11i1 gd of the decorative plate receiving plate 12 is the sliding piece 4.
It is attached to the hook part 17 of B. The sliding piece 48 can be slid in the direction of the arrow along the inner plane of the decorative board 15 by a guide part 49 provided on the decorative board 15, but the convex part 19 provided in the middle of the sliding piece 48 is locked by a pin 18 provided on the decorative plate 15, so that the decorative plate 15 is fixed to the decorative receiving plate 12 in a manner that it cannot be removed; a handle formed at one end of the sliding piece 48 20 in the direction of the arrow, the relative positional relationship between the pin 18 and the convex portion 19 becomes as shown in FIG. Since it comes off, the decorative board 15
can be removed from the decorative board receiving plate 12.

FIG. 5 is a diagram showing the opening/closing mechanism of the decorative plate (15), and in the figure, a link 25 is attached to a support shaft 24 provided at a certain distance from the rotation axis C of the decorative plate receiving plate 12. One end is loosely attached to the shaft. An inductor type synchronous timing motor 26 is fixed to the end of the support 21, a lever 27 is fixed to the output shaft 34, and a support shaft 28 is provided on the lever 27 at a position further away from the output shaft 34. It is loosely pivoted to the other end of the link 25.

When the timing motor 26 rotates and the lever 27 moves from the position A to the position B, the link 25 is moved to the position A'.
The decorative board 15 moves from the position A' to the position B'B', and thus the decorative board 15 moves around the rotation axis C of the decorative board receiving plate 12 to the position indicated by the broken line.

29 and the blockage completion state detection switch 30 are fixed to the support 21, and when the end 35 of the link 27 is in the A position, the push button 42'□ is pressed, and when it is in the B position, the push button 42 is pressed. It is.

In addition, the spring hook i32 provided on the support body 21 and the link 25
A tension spring 31 is hooked between the hole 33 and the hole 33 provided in the hole 33 .

When the decorative plate 12 is closed, the lever 27 is pressed as described above.
is at position A, and the straight line connecting the spring hook 32 and the center of the hole 33 is on the right side of FIG. A moment is applied in the clockwise direction, and a force in the direction of closing is applied to the decorative board 15, and the decorative board 15 is in a stable stationary state.The primary lever 27 starts to rotate, and the spring hook part 32
When the straight line connecting the center of the hole 33 and the center of the output shaft 34 is located to the left of the center of the output shaft 34 in FIG.
When the lever 27 is stopped at the B position and the decorative board 15 is in an open state, the tension spring 31 functions to balance the weight of the decorative board 15.

In FIG. 2, the frame body 36 is fixed with wood screws or the like on the outside of the chamber wall 2, and a cylindrical portion 37 is formed toward the inside of the chamber. There is. Further, a rear filter 38 is detachably fitted into the cylindrical portion 37 of the frame 86.

The weather cover 39 is attached to legs 40 formed on the frame body 36,
It is mounted at a certain distance from the frame 36. Frame body 3
An oil reservoir 41 is provided on the outer side of the lower part of 6.

FIG. 6 is a diagram of an electric circuit used in the present invention, and shows a wiring diagram when the motor 5 is in a stopped state and the decorative frame 7 is also in a closed state. It is a normally closed contact type, and is opened by pressing push buttons 42 and 42' shown in FIG. The electromagnetic switch 43 has normally open contacts, and when the coil 44 is energized, the contacts 45A and 45B are closed. In addition, the operation control switch 46 and the electromagnetic switch (q
The control section is formed by the .But where is it installed?

It is located in a different location from the main body frame 1 in Figure 11.

To operate the blower 6, the movable contact 46A of the operation control switch 46 is switched to the fixed contact 46B in FIG. As a result, the circuit of the electric motor 5 and the electromagnetic switch 43 is closed, so the electric motor 5 rotates, the coil 44 of the electromagnetic switch 43 is energized, and the normally open contacts 45A and 45B are closed. The timing motor circuit is closed and the timing motor 26 rotates. In FIG. 5, the lever 27 is rotated (clockwise) by the timing motor 26.
rotates and pushes the link 25 to the left in FIG. 5, so the decorative plate 15 begins to rotate about the rotation axis C as a fulcrum. When the lever 27 reaches the B position, the end 35 pushes the push button 42 of the open state detection switch 29. Therefore, the movable contact piece 29A shown in FIG. 6 is disconnected from the fixed contact 29B, and the timing motor 26 circuit is opened, so the timing motor 26 stops. At this time, since the push button 42' is not pressed, the blockage completion state detection switch 30 (fifth
(See figure) The movable contact piece 30A is connected to the fixed contact 30B. The electric motor 5 has a movable contact piece 46A of the operation control switch 46.
Since it remains connected to the fixed contact 46B, the operation of the electric motor 5 continues as it is.

Next, to stop the operation of the blower 6, the movable contact piece 46A of the operation control switch 46 is switched to the fixed contact 46G. The circuit of the motor 5 is opened and the motor 5 is stopped. But the fifth
Since the closure completion state detection switch 30 in the figure is closed, the timing motor 26 rotates counterclockwise and the decorative board 15 begins to close. 5 When the decorative board 15 finishes blocking, the end 35 of the link 27 is activated by the blocking completion state detection switch 3.
0 push button 42' is pressed, whereby the movable contact piece 30A shown in FIG.
stops. (At this time, the push button 42 of the open completion state detection switch 29 is not pressed at step 6111.) Therefore, the circuit state of FIG. 6, that is, the state where the movable contact piece 29A is connected to the fixed contact 29B is restored. .

As described above, in the present invention, the decorative board 15 completely covers the front surface of the fan 6, so that the inside of the ventilation fan cannot be seen when the fan 6 is not in operation, and the decorative board 15 is opened during operation. A front filter 11 is provided so that the inside cannot be seen from the indoor side.

As for the style of the filter, although a shutter type filter is shown in the embodiment shown in FIG. 2, it goes without saying that a mesh type filter or a fibrous bi-paper type filter may also be used.

As described above, the decorative board 15 has a structure that can be removed from the decorative board receiving plate 12 shown in FIG. 3, and the decorative board frame 7 can also be removed from the main body frame 1.

Also, by loosening the screws 23 and 23' in Figure 2,
The support body 21 can be removed from the main body frame 1. The support body 21 is equipped with a mechanism for opening and closing the blower 6, the timing motor 26, and the decorative panel 15, and is configured to be able to remove these components as one unit. therefore,
The structure is easy to clean, inspect and disassemble. Furthermore, the rear filter 38 satisfies the functions of a conventional wind pressure opening/closing type shutter and weather cover due to the presence of the decorative plate 15.
Both have a structure that prevents rainwater and insects from entering from the outside and prevents dirt from getting inside the main body frame 1, and there is no shutter.Furthermore, both the front filter 11 and the rear filter 38 are designed to be easily cleaned. It can be attached and detached at will.

【Effect of the invention〕

As described above, the present invention is characterized in that a decorative plate that covers the entire surface of the main body is detachably attached to the main body frame, and during operation, the rotation of the blades cannot be seen due to the filter on the front, and therefore the blades are stopped. Looks good not only inside but also when driving.
It is possible to provide a ventilation fan with excellent interior design.

Next, since the decorative board can be easily removed from the main body frame, it can be washed at an appropriate location, and as described above, the filter, the decorative frame, and the support can be cleaned to prevent internal dirt. Of course, since the blower, decorative panel opening/closing mechanism, etc. are constructed to be easy to attach and detach, it is extremely convenient for disassembly and cleaning, and has the effect of improving cleaning efficiency.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of the outline of the present invention, Fig. 2 is a vertical sectional view of the state in which it is attached to a wall, Fig. 3 is an internal perspective view of the decorative board in its open state, and Fig. 3-a is in Fig. 3. Changed diagram of part J, 4th
The figure is a front view showing the relationship between the main body frame and the support body, FIG. 5 is a longitudinal sectional view showing the mechanism for opening and closing the decorative panel, and FIG. 6 is an electric circuit diagram. 1...Main body frame, 2...Room wall, 3...Wooden frame, 4...
・Blade, 5... Electric motor, 6... Blower, 7... Decorative frame, 8.8'... Protrusion, 9, 9... Recess, 10.
...Bellmouth, 11...Front filter, 12...
Decorative plate receiving plate, 13.13'... receiving plate bracket, 14
．． 14'...Bracket, 15...Ihi decorative board, 16
...Hook part, 17...Hook part, 18...Pin, 19...Convex part, 20...Handle, 21...Support body, 22, 22'...Socket, 23.23'... Screw, 24... Support shaft, 25... Link, 26... Timing motor, 27... Lever, 28... Support shaft, 2
9...Opening completion state detection switch, 30...v14
s completion state detection switch, 31... tension spring, 32...
... Spring hook part, 33 ... Hole, 34 ... Output shaft, 3
5... End part, 36... Frame body, 37... Cylindrical part, 3
8... Rear filter, 39... Weather cover, 4
o... Leg, 41... Oil reservoir, 42° 42'... Push button, 43... Electromagnetic switch, 44... Coil,
45A, 45B... Contact, 46... Operation control switch, 46A... Movable contact piece, 46B, 46G... Fixed contact, 47... Bolt, 48... Sliding piece, 49...
・Information Department, -

Claims (1)

[Claims] 1. A main body frame 1 provided almost entirely within the ventilation opening;
A blower 6 and a decorative frame 7 attached to the main body frame 1, a front filter 11 and a rear filter 38 provided before and after the blower 6, respectively, and a decorative plate 15 provided in front of the front filter 11.
and a decorative plate opening/closing mechanism section, the filter 1
1, 38. A ventilation fan characterized in that a decorative board 15 and a blower 6 are detachably attached. 2. The ventilation fan according to claim 1, wherein the decorative plate 15 and the front filter 11 are detachably attached to the decorative frame 7. 3. The ventilation fan according to claim 1, wherein the rear filter 38 is detachably attached to a cylindrical portion 37 fitted to the main body frame 1. 4. The ventilation fan according to claim 1, wherein the rear filter 38 is mounted at a predetermined distance from the weather cover 39. 5. The decorative panel opening/closing mechanism including the decorative frame 7, the blower 6, and the timing motor 26 are all integrally attached to the support body 21 in a detachable manner. ventilation fan. 6. The ventilation fan according to claim 1, wherein the decorative plate 15 is opened and closed by a timing motor 26 that is linked to a control switch for starting and stopping the operation of the blower 6.