JPH0763384A - Ventilating fan - Google Patents

Abstract

PURPOSE:To facilitate a mounting operation by pressing an operation receiver by rotating from a body, and elastically deforming a mounting member against its elastic force in a direction for separating at its end from an inner upper surface of the opening. CONSTITUTION:A decorative cover 20 is inserted from an indoor side into a wood frame 13 in a state that the cover 20 remains mounted at a body 14, and the body 14 is pressed to be moved in a direction of an arrow A. Then, a mounting member 22 is brought into contact with the frame 13 and so elastically deformed as to be rotated at a bent part 22c as a center in a direction of an arrow B, the member 22 is invaded into the frame 13, and an end of the part 22b is pressed to an inner upper surface of the frame 13 by its own elastic force. The body 14 is pressed to be moved by a flange 15 in the direction of the arrow A until it is brought into contact with the frame 13. Thus, mounting is facilitated and conducted in a short time merely by inserting the body 14 into the frame 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation fan which is attached to an opening provided in a chamber wall by inserting a main body into the opening.

[0002]

2. Description of the Related Art A ventilation fan used in, for example, a kitchen or a bathroom is usually mounted on a wall of a room. The conventional mounting structure is shown in FIG. In the drawing, a hole 2 that communicates the inside and outside of the room is formed in the room wall 1, and a wooden frame 3 is fitted in the hole 2. On the other hand, in the body 4 of the ventilation fan, screw holes 5 are formed on both the left and right sides of the upper surface portion.
The fan bolt 6 is screwed into the.

To mount the main body 4, the main body 4 is inserted into the wooden frame 3 and the fan bolt 6 is rotated so that the upper end of the fan bolt 6 is pressed against the wooden frame 3 to rotate the fan. The upper end of the bolt 6 is pressed against the inner upper surface of the wooden frame 3, and the lower surface of the main body 4 is pressed against the inner lower surface of the wooden frame 3 by its reaction force, so that the main body 4 is attached to the wooden frame 3. is there.

[0004]

By the way, as shown in FIG. 9, a decorative cover 7 having a bell mouth 7a is detachably attached to the flange 4a of the main body 4, but the decorative cover 6 is attached to the main body 4. If you stay
The decorative cover 6 interferes with the head 6a of the fan bolt 6
Can't pick. For this reason, the makeup cover 7 must be removed when the main body 4 is attached, and the removed makeup cover 7 must be removed after the attachment work is completed.
Has to be reattached, which makes the work troublesome.

Further, since the ventilation fan is usually mounted at a high position on the chamber wall 1, the work of mounting the main body 1 is so-called work at a high place. When the fan bolt 6 is rotated, the main body 4 is pushed by one hand and the flange 4 is pushed.
It is necessary to rotate the fan bolt 6 with the other hand while maintaining the state in which a is in contact with the wooden frame 3, and work in high places in such a state is highly dangerous.

The present invention has been made in view of the above circumstances, and an object thereof is to install the main body only by inserting it into an opening provided in the chamber wall, and to facilitate the installation work. To provide a ventilation fan that can.

[0007]

According to a first aspect of the present invention, there is provided a ventilating fan in which a main body having a detachable decorative cover on a front surface is attached to an opening provided in a chamber wall by inserting the main body into the opening. It is attached to the upper surface of the main body, and the tip is formed to be obliquely upward in a direction opposite to the insertion direction of the main body into the opening, and the tip is formed by the elastic force of the inside of the opening. A mounting member that presses against the upper surface to prevent the main body from coming off from the opening, an operation receiving portion provided on the mounting member, and a screwing operation on the upper surface of the main body, and the operation is performed by a rotation operation from inside the main body. And a screw member that presses the receiving portion and elastically deforms the mounting member against the elastic force of the mounting member in the direction in which the tip end portion moves away from the inner upper surface of the opening.

According to another aspect of the ventilation fan of the present invention, the mounting member is formed of an elastic body such as a leaf spring on the side to be mounted on the upper surface of the main body, and has a rigid metal plate on the side to be pressed against the inner upper surface of the wooden frame. It is characterized in that it is formed of a rigid body such as, and the operation receiving portion is integrally formed in the portion made of the rigid body.

According to another aspect of the ventilation fan of the present invention, the screw member pushes the operation receiving portion by upward movement, and when the attaching member elastically deforms by a predetermined amount due to the pushing, the screw member is disengaged from the operation receiving portion, and is moved more than the attaching member. It is characterized in that it is configured to move upward and come into contact with the inner upper surface of the opening.

[0010]

According to the means of claim 1, when the main body is inserted into the opening, the tip of the mounting member is pressed against the inner upper surface of the opening by the elastic force of the mounting member and the main body is pulled out from the opening. Stop it. This attaches the body to the opening. To remove the body from the opening, the screw member is rotated. Then, the screw member presses the operation receiving portion, and the mounting member is elastically deformed so that the tip end portion thereof is separated from the inner upper surface of the opening portion, so that the main body can be removed from the opening portion.

According to the second aspect of the present invention, since the operation receiving portion is formed integrally with the rigid portion of the mounting member, when the operation receiving portion is pressed by the screw member, the rigid operation receiving portion is formed. The portion does not elastically deform, and the elastic member portion of the mounting member elastically deforms. Therefore, the tip of the mounting member can be separated from the inner upper surface of the opening with a small amount of movement of the screw member.

According to the third aspect, when the screw member is rotated to elastically deform the mounting member by a predetermined amount, the screw member comes off from the operation receiving portion. After that, when the screw member is further rotated, the screw member moves above the mounting member and comes into contact with the inner upper surface of the opening. Therefore, the gap between the inner upper surface of the opening and the upper surface of the main body is increased. Is large, and the main body can be attached even when the main body cannot be attached in a retaining state depending on the attaching member.

[0013]

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 quadrangular hole 12 that communicates indoors and outdoors is provided in the upper portion of the chamber wall 11, and a quadrangular wooden frame 13 is fitted into the hole 12. Then, a main body 14 made of a metal plate of the ventilation fan is attached to the inside of the wooden frame 13 by using a space for communicating the inside and outside of the wooden frame 13 as an opening of the chamber wall 11 as described later.

The main body 14 is formed in a rectangular box shape having a flange 15 at a front end thereof, and a motor 17 is mounted inside the main body 14 via a motor mounting frame 16 and a fan is attached to a rotary shaft of the motor 17. 18 is detachably attached. In addition, for example, the fan 1 is provided on the indoor side of the body 14.
A shutter 19 that opens in response to wind from the fan 8 is provided, and a fan 18 is provided on the front flange 15.
A decorative cover 21 having a bell mouth 20a surrounding the is attached detachably. Then, when the fan 18 is rotated by the motor 17, the indoor air is discharged to the outside through the bell mouth 20a and the main body 14.

Here, the mounting structure of the main body 14 to the wooden frame 13 will be described. As shown in FIG. 2, on the upper surface of the main body 14, the holding portion 2 is located on both left and right sides (only the left side is shown).
1 is formed so as to project, and both front and rear sides of this holding portion 21 are cut to form slit-shaped support holes 21a. On the other hand, the attachment member 22 for attaching the main body 14 to the wooden frame 13 is formed by, for example, a leaf spring so as to have a substantially V shape, and the base end portion (lower end portion) thereof is inserted into the holding hole 21a from the rear side. By doing so, it is attached to the holding portion 21. In this case, the engaging projection 21 formed on the holding portion 21 is formed in the engaging recess 22a formed at the base end of the mounting member 22.
By fitting b, the base end of the mounting member 22 is stopped so as not to come out of the holding hole 21a.

In this way, the upper half of the mounting member 22 whose base end is mounted on the upper surface of the main body 14 is the direction of insertion into the wooden frame 13 of the main body 14 (indicated by arrow A in FIG. 1). It is directed obliquely upward in the opposite direction, and its tip portion is bent so as to be further obliquely upward, and the bent portion 2
2b. In addition, a projecting piece 23 as an operation receiving portion is integrally formed by cutting and bending so as to project rearward from a bent portion 22c at an intermediate portion of the mounting member 22.

A recess 24 is formed on the upper surface of the main body 14 in the vicinity of the rear side of the holding portion 21. A cylindrical portion 25 formed by burring is provided at the center of the bottom of the recess 24. A female screw 26 formed on the inner surface of the cylindrical portion 25 is provided with a fan fan 27 as a screw member. It is screwed so that 27 a is located inside the main body 14. Then, the protruding piece 23 of the mounting member 22
Is located directly above the tip of the fan bolt 27, and therefore when the fan bolt 27 is rotated to move it upward, the tip of the fan bolt 27 presses the projecting piece 23 and the mounting member 22. Can be displaced in the direction of arrow B against the elastic force of the bent portion 22b.
The fan bolt 27 is usually in a state of being lowered to such an extent that the tip portion thereof slightly projects from the tubular portion 25, as shown in FIG.

In the present embodiment configured as described above,
To attach the main body 14 to the wooden frame 13, as shown in FIG. 3, the lower surface of the main body 14 is placed on the inner and lower surfaces of the wooden frame 13 with the makeup cover 20 still attached to the main body 14. It is inserted into the wooden frame 13 from the indoor side, and the main body 14 is pressed and moved in the direction of arrow A. Then, the arrow A of the main body 14
With the movement in the direction, the mounting member 22 comes into contact with the wooden frame 13 and elastically deforms so as to rotate in the arrow B direction around the bent portion 22c. This elastic deformation allows the mounting member 22 to enter the wooden frame 13, and the mounting member 22 that has entered the wooden frame 13 has its tip end portion of the bent portion 22b caused by its elastic force as shown in FIG. Is pressed against the inner upper surface of the wooden frame 13.

The mounting operation of the main body 14 is completed when the main body 14 is pushed and moved in the direction of arrow A until the flange 15 contacts the wooden frame 13. In this attached state, the lower surface of the main body 14 is pressed against the inner and lower surfaces of the wooden frame 13 by the reaction force caused by the tip end of the bent portion 22b being pressed against the inner upper surface of the wooden frame 13, and the arrow A For movement in the opposite direction (movement in the pull-out direction),
By the tip of the mounting member 22 biting into the inner upper surface of the wooden frame 13 to prevent the body 14 from coming off,
The main body 14 is fixed in the wooden frame 13.

On the other hand, when it becomes necessary to remove the main body 14 from the wooden frame 13, the decorative cover 20 is first removed from the main body 14, and the head 27a of the fan fan bolt 27 is picked to move the fan fan bolt 27 upward. Rotate as you would.
Then, the fan fan bolt 27 moves upward to come into contact with the projecting piece 23 of the mounting member 22 and press the projecting piece 23 upward. As a result, the mounting member 22 receives a biasing force in the direction of arrow B, and as shown in FIG.
It elastically deforms so as to rotate in the direction, and the tip end of the bent portion 22b is separated from the inner upper surface of the wooden frame 13 by this elastic deformation. Then, by pulling the main body 14 in the direction opposite to the arrow A, the main body 14 can be removed from the wooden frame 13.

As described above, according to this embodiment, the main body 14 can be attached to the wooden frame 13 by simply inserting the main body 14 into the wooden frame 13 with the decorative cover 20 attached to the main body 14. Can be easily attached in a short time. Since the main body 14 can be moved in the direction of the arrow A with only one hand, the fan bolt 6 must be operated with one hand while pressing the main body 4 with the other hand. Unlike the above, the risk at the time of mounting work of the main body 14, which is so-called work at a high place, is reduced.

In the first embodiment described above, the projecting piece 23 (operation receiving portion) is pushed upward by the upward movement of the fan fan bolt 27 to elastically move the mounting member 22 in the direction of arrow B. Although it is arranged to be deformed, the operation receiving portion is attached to the attachment member 22.
Is provided so as to be located on the front side of the fan fan, and a flange portion located above the operation receiving portion is attached to the upper end portion of the fan fan bolt 27, and the operation receiving portion is pressed downward by the flange portion by the downward movement of the fan fan bolt 27. The mounting member 22 may be elastically deformed so as to rotate in the arrow B direction.

FIG. 5 shows, as a second embodiment of the present invention, a configuration example in which the tip end portion of the mounting member 22 in the first embodiment is easily bite into the inner upper surface of the wooden frame 13. That is, the bent portion 22 at the tip of the mounting member 22
b is notched in a substantially V shape and is formed in the pair of claw portions 22d. This claw portion 22d has an acute angle shape, and therefore the claw portion 22d easily bites into the inner upper surface of the wooden frame 13, so that the attachment member 22 can more reliably prevent the main body 14 from coming off.

FIG. 6 shows a third embodiment of the present invention. The same parts as those in FIG. 1 showing the first embodiment are designated by the same reference numerals and only different parts will be described. The mounting member 28 of this embodiment is composed of two members, an elastic member 29 and a locking member 30, the elastic member 29 is formed of an elastic body such as a leaf spring into a substantially V shape, and the locking member 30 is It is formed of a rigid body such as a rigid metal plate.

A connecting portion 31 similar to the holding portion 21 is formed on the locking member 30 so as to protrude downward, and the upper end of the elasticity imparting member 29 is fitted into the connecting portion 31. Thus, the elasticity imparting member 29 and the locking member 30 are integrated. In this case, the locking member 3
The rear end side of 0 is extended so as to project rearward from the bent portion 29a of the elasticity imparting member 29, and this extended portion serves as an operation receiving portion 32. The mounting member 28 thus configured is mounted on the upper surface of the main body 14 by inserting the lower portion of the elasticity imparting member 29 into the holding hole 21a of the holding portion 21 from the rear side.

According to this embodiment having such a structure, when the mounting fan 28 is elastically deformed so as to rotate in the direction of arrow B, the operation receiving portion 32 which receives a pressing force from the fan bolt 27 is used. Since it is formed of a rigid body, it does not elastically deform, and only the elasticity imparting member 29 elastically deforms. Therefore, as shown in the first embodiment, unlike the one in which the operation receiving portion is the projecting piece 23 made of the leaf spring that may be elastically deformed by the pressing force received from the fan bolt 27, the fan bolt 27 of the fan bolt 27 is not provided. Since the upward movement can be efficiently converted into the rotation of the mounting member 28 in the direction of the arrow B, the tip end portion of the locking member 30 can be separated from the inner upper surface of the wooden frame 13 with a small operation amount of the fan bolt 27. .

7 and 8 show the fourth and fifth aspects of the present invention.
The same parts as those in FIG. 6 showing the third embodiment are designated by the same reference numerals and only different parts will be described. In the fourth embodiment shown in FIG. 7, the operation receiving portion 32 has a through hole 33 formed therein. When the fan fan bolt 27 is rotated so as to move upward, the tip of the fan fan bolt 27 presses the vicinity of the rear side of the through hole 33 against the operation receiving portion 32, and the mounting member 2 is attached.
8 is rotated in the direction of arrow B. As the mounting member 28 rotates, the pressing portion of the fan fan bolt 27 against the operation receiving portion 32 gradually moves to the front side, and the elasticity imparting member 29 elastically deforms by a predetermined amount, for example, as shown in FIG. 7B. Member 3
When the elastic member 0 is elastically deformed to a substantially horizontal state, the fan fan bolt 27 comes off the operation receiving portion 29 and enters the through hole 33. Thereafter, when the fan fan bolt 27 is further moved upward, the fan fan bolt 27 projects upward from the through hole 33.

In the fifth embodiment shown in FIG. 8, the operation receiving portion 3
2 is bent at the rear end thereof, and the bent portion 32a has a notch 3
4 are formed. When the fan fan bolt 27 is rotated so as to move upward, the tip of the fan fan bolt 27 pushes the vicinity of the front side of the notch 34 against the operation receiving portion 32 to rotate the mounting member 28 in the arrow B direction. With the rotation of the mounting member 28, the pressing portion of the fan fan bolt 27 against the operation receiving portion 32 gradually moves to the rear side. Then, the elasticity imparting member 29
When elastically deformed by a predetermined amount, for example, elastically deformed until the locking member 30 becomes substantially horizontal as shown in FIG. 8B, the fan bolt 27 comes off the operation receiving portion 32 and enters the notch 34. Thereafter, when the fan fan bolt 27 is further moved upward, the fan fan bolt 27 projects upward from the notch 34.

According to the fourth and fifth embodiments thus constructed, when the mounting member 28 rotates in the direction of the arrow B by a predetermined amount by the upward movement of the fan bolt 27, the fan bolt 2
7 is detached from the operation receiving portion 32 and can be projected above the mounting member 28. Therefore, the gap between the upper surface of the main body 14 and the inner upper surface of the wooden frame 13 is large, and the locking member 30
The tip of the locking member 30 does not come into contact with the inner upper surface of the wooden frame 13, or even if it comes into contact with it, depending on the elastic force of the elasticity imparting member 29,
When the tip end of the fan fan cannot be pressed sufficiently against the inner upper surface of the wooden frame 13, the fan fan bolt 27 is projected above the attachment member 28 as shown in FIGS. 7B and 8B. And move the tip of the fan bolt 27 to the wooden frame 1
3 is pressed against the inner upper surface of the main body 14 to move the main body 14 to the wooden frame 1.
3 can be attached.

In the fifth embodiment, the operation receiving portion 32 is provided with the bent portion 32a, and the notch 34 is formed in the bent portion 32a. However, the tip end of the bent portion 32a has the length of the notch 34. Similar effects can be obtained by cutting a considerable amount.

[0031]

As described above, according to the present invention, the following effects can be obtained. According to the ventilation fan of claim 1, when the main body is inserted into the opening, the mounting member presses the tip end against the inner upper surface of the opening by the elastic force of the mounting member to prevent the main body from coming off. The attaching work can be performed easily and in a short time with the makeup cover attached. Further, when the main body is removed, the mounting member can be separated from the inner upper surface of the opening by operating the screw member, so that the main body can be easily removed.

According to another aspect of the ventilation fan of the present invention, the side of the mounting member that is mounted on the upper surface of the main body is formed of an elastic body such as a leaf spring, and the side that is pressed against the inner upper surface of the wooden frame is a rigid metal plate. When the operation receiving portion is pressed by the screw member, the operation receiving portion made of a rigid body does not elastically deform, and the operation receiving portion is formed integrally with the rigid body. Since the elastic member portion of the mounting member is elastically deformed, the tip of the mounting member can be separated from the inner upper surface of the opening with a small amount of movement of the screw member.

In the ventilation fan according to claim 3, the screw member is
When the operation receiving portion is pressed by the upward movement and the mounting member is elastically deformed by a predetermined amount by the pressing, the operation receiving portion is disengaged from the operation receiving portion and moves above the mounting member to come into contact with the inner upper surface of the opening. Due to the configuration, the main body can be attached even when the gap between the inner upper surface of the opening and the upper surface of the main body is large and the main body cannot be attached in the retaining state depending on the mounting member. Becomes

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part

FIG. 3 is a partial vertical sectional side view showing a state where the main body is inserted into a wooden frame.

FIG. 4 is a partial vertical sectional side view showing a state in which the main body is removed from the wooden frame.

FIG. 5 is a perspective view of a mounting member showing a second embodiment of the present invention.

FIG. 6 is a vertical cross-sectional side view of essential parts showing a third embodiment of the present invention.

FIG. 7 is a vertical cross-sectional side view of essential parts showing a fourth embodiment of the present invention.

FIG. 8 is a view corresponding to FIG. 7, showing a fifth embodiment of the present invention.

FIG. 9 is a view corresponding to FIG. 1 showing a mounting structure of a conventional ventilation fan.

[Explanation of symbols]

11 is a room wall, 13 is a wooden frame (opening), 14 is a main body, 20
Is a decorative cover, 21 is a holding portion, 22 is a mounting member, 23 is a projecting piece (operation receiving portion), 27 is a fan fan (screw member), 2
8 is a mounting member, 29 is an elasticity imparting member, 30 is a locking member,
Reference numeral 32 is an operation receiving unit.

Claims (3)

[Claims] 1. A ventilation fan in which a main body having a removable decorative cover on a front surface is attached to an opening provided in a chamber wall by inserting the base end into an upper surface of the main body, and a tip end is attached to the main body. It is formed so as to be obliquely upward in the direction opposite to the insertion direction of the main body into the opening, and the tip of the main body is pressed against the inner upper surface of the opening by its own elastic force to prevent the main body from coming off from the opening. The mounting member to be brought into a state, the operation receiving portion provided on the mounting member, and the operation receiving portion which is screwed into the upper surface of the main body and is pressed by the rotating operation from the inside of the main body to push the operation of the mounting member to the elastic member. A ventilating fan comprising: a screw member whose tip end is elastically deformed in a direction away from the inner upper surface of the opening against the force of generation. 2. The mounting member is formed of an elastic body such as a leaf spring on the side to be mounted on the upper surface of the main body, and is formed of a rigid body such as a rigid metal plate on the side to be pressed against the inner upper surface of the wooden frame. The ventilation fan according to claim 1, wherein the operation receiving portion is integrally formed with the rigid body portion. 3. The screw member pushes the operation receiving portion by moving upward, and when the mounting member elastically deforms by a predetermined amount due to the pushing, the screw member is disengaged from the operation receiving portion and moves upward from the mounting member to open. The ventilation fan according to claim 1 or 2, wherein the ventilation fan is configured to abut on an inner upper surface of the portion.