JP3311825B2 - 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 which is attached to an opening provided in a room wall by inserting a main body into the opening.

[0002]

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

In order 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 as to move upward until the upper end of the bolt 6 is pressed against the wooden frame 3. The upper end of the bolt 6 is pressed against the inner upper surface of the wooden frame 3 and the reaction force causes the lower surface of the main body 4 to be pressed against the internal lower surface of the wooden frame 3, so that the main body 4 is attached to the wooden frame 3. is there.

[0004]

[SUMMARY OF THE INVENTION Incidentally, the flange 4a of the body 4 although the decorative cover 7 having a bell mouth 7a as shown in FIG. 9 is detachably attached, the decorative cover 7 is attached to the main body 4 If left standing,
The head 6a of the fan bolt 6 is blocked by the decorative cover 6
Can not pick. For this reason, when attaching the main body 4, the decorative cover 7 must be removed without fail.
Must be re-attached, which makes the work cumbersome.

Further, since the ventilation fan is usually mounted at a high position on the room wall 1, the mounting work of the main body 1 is a so-called high-place work. When rotating the fan bolt 6, the user pushes the main body 4 with one hand and presses the flange 4.
While maintaining the state in which a is in contact with the wooden frame 3, it is necessary to rotate the fan bolt 6 with the other hand, and working at heights 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 mount the main body only by inserting the main body into an opening provided in a room wall, thereby facilitating the mounting work. To provide a ventilation fan that can.

[0007]

A ventilating fan according to the present invention is a ventilation fan in which a main body having a detachable decorative cover on a front portion is mounted by being inserted into an opening provided in a room wall, and a base end portion of the main body has the main body. Attached to the upper surface portion, the tip portion is formed so as to be obliquely upward in a direction opposite to the direction of insertion of the main body into the opening portion, and the tip portion is formed on the inner upper surface of the opening portion by its own elastic force. A mounting member that presses the main body from the opening to prevent the main body from coming off ,
The side attached to the upper surface is shaped by an elastic body such as a leaf spring.
And pressed against the inner upper surface of the opening.
Is formed by a rigid body such as a rigid metal plate.
A mounting member in which the operation receiving portion is integrally formed with a rigid body portion, and a screwing operation is performed on the upper surface portion of the main body, and the operation receiving portion is pressed by a rotation operation from inside the main body. A screw member for resiliently deforming the mounting member in a direction away from the inner upper surface of the opening portion against the elastic force of the mounting member.

[0008]

[0009]

[0010]

According to the present invention , when the main body is inserted into the opening,
The distal end 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 prevented from falling out of the opening. Thereby, the main body is attached to the opening.
To remove the main 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 distal end thereof is separated from the inner upper surface of the opening, so that the main body can be removed from the opening.
Also, the operation receiving part is integrated with the rigid part of the mounting member.
Pressing the operation receiving part with a screw member
The rigid operation receiving part does not elastically deform when
Of these, the portion made of an elastic body is elastically deformed. For this reason, the thread
With the small amount of movement of the material, the tip of the mounting member is
Can be separated from

[0011]

[0012]

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the present invention with reference to examples, the present invention will be described.
In order to better understand
This will be described with reference to FIG . As shown in FIG.
A rectangular hole 12 communicating between the inside and outside of the room is provided in the upper part of the vehicle, and a square wooden frame 13 is fitted in the hole 12. The metal frame main body 14 of the ventilation fan is attached to the interior of the wooden frame 13 as described later, with the space inside and outside of the wooden frame 13 communicating with the interior and the exterior of the room wall 11.

The main body 14 is formed in a rectangular box shape having a flange 15 at a front end, and a motor 17 is mounted inside the motor via a motor mounting frame 16. 18 is detachably attached. Further, the chamber outside of the main body 14, for example fans 1
The shutter 19 to the opening operation before the wind is disposed from 8, decorative cover 2 having a bellmouth 20a surrounding the fan 18 in the flange 15 of the indoor side front surface
1 is detachably attached. And fan 1
When the motor 8 is rotated by the motor 17, the room air is discharged 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 portions 2 are located on both left and right sides (only the left side is shown).
1 is formed so as to protrude, and both front and rear sides of the holding portion 21 are cut to form a slit-shaped support hole 21a. On the other hand, an attachment member 22 for attaching the main body 14 to the wooden frame 13 is formed in a substantially V shape by, for example, a leaf spring, and a base end (lower end) is inserted into the holding hole 21a from the rear side. By doing so, it is attached to the holding unit 21. In this case, the engaging protrusion 21 formed on the holding portion 21 is provided in the engaging recess 22a formed on the base end of the mounting member 22.
By the fitting of b, the base end of the mounting member 22 is stopped so as not to fall out of the holding hole 21a.

The upper half of the mounting member 22 whose base end is mounted on the upper surface of the main body 14 in this manner is defined by the direction in which the main body 14 is inserted into the wooden frame 13 (indicated by an arrow A in FIG. 1). The tip part is bent obliquely upward toward the opposite direction, and the tip part is further bent diagonally upward to form a bent part 2.
2b. Further, a protruding piece 23 as an operation receiving portion is integrally formed by cutting and raising so as to protrude 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 near the rear side of the holding portion 21. A cylindrical portion 25 formed by burring protrudes from the center of the bottom of the concave portion 24. 27a is screwed so as to be positioned inside the main body 14. And the projecting piece 23 of the mounting member 22
Is positioned directly above the tip of the fan bolt 27. Therefore, when the fan bolt 27 is rotated to move upward, the tip of the fan bolt 27 presses the protruding piece 23 to press the mounting member 22. Can be displaced in the direction of arrow B against the elastic force of the bent portion 22b.
It should be noted that the fan bolt 27 is normally lowered to such a degree that its tip projects slightly from the tubular portion 25 as shown in FIG.

[0018] Oite the configuration as described above, to attach the main body 14 to the wooden frame 13, as shown in FIG. 3, the main body 14
With the decorative cover 20 attached to the body 14
Is inserted into the wooden frame 13 from the indoor side so that the lower surface of the wooden frame 13 is placed on the inner lower surface of the wooden frame 13, and the main body 14 is pressed and moved in the direction of arrow A. Then, as the main body 14 moves in the direction of arrow A, the mounting member 22 comes into contact with the wooden frame 13 and the bent portion 22 c
Is elastically deformed so as to rotate in the direction of arrow B around. This elastic deformation allows the attachment member 22 to enter the wooden frame 13, and the attachment member 22 that has entered the wooden frame 13, as shown in FIG. To 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 pressed and moved in the direction of arrow A until the flange 15 comes into contact with the wooden frame 13. In this mounting 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 distal end of the bent portion 22b being pressed against the inner upper surface of the wooden frame 13, and the arrow A of the main body 14 Is for movement in the opposite direction (movement in the exit direction)
The tip of the attachment member 22 bites into the inner upper surface of the wooden frame 13 and the main body 14 is prevented from falling 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 bolt 27 is picked up and the fan bolt 27 is moved upward. Rotate to make it rotate.
Then, the fan bolt 27 abuts on the projecting piece 23 of the mounting member 22 by moving upward, and presses the projecting piece 23 upward. As a result, the mounting member 22 receives the urging force in the direction of arrow B, and as shown in FIG.
The tip of the bent portion 22 b is separated from the inner upper surface of the wooden frame 13 by this elastic deformation. Thereafter, 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 , since the main body 14 can be attached to the wooden frame 13 simply by inserting the main body 14 into the wooden frame 13 while the decorative cover 20 is attached to the main body 14, the mounting of the main body 14 can be performed easily and easily. It can be done in a short time. Since the movement of the main body 14 in the direction of the arrow A can be performed with only one hand, the conventional technique has to operate the fan bolt 6 with one remaining hand while pressing the main body 4 with one hand. Unlike this, the danger of mounting the main body 14, which is a so-called high-altitude operation, is also reduced.

In the above basic configuration , the fan bolt 27
The protrusion 23 (operation receiving portion) is pressed upward by the upward movement to elastically deform the mounting member 22 so as to rotate in the direction of arrow B, but the operation receiving portion is located on the front side of the mounting member 22. And a flange located above the operation receiving portion is attached to the upper end of the fan bolt 27, and the fan bolt 2
The operation receiving portion may be pressed downward by the flange portion by the downward movement of 7 so that the attachment member 22 is elastically deformed so as to rotate in the direction of arrow B.

FIG. 5 shows the mounting member 22 in the above basic configuration .
Is an example in which the tip portion is easy to bite into the inner upper surface of the wooden frame 13. That is, the bent portion 22b at the distal end of the mounting member 22 is cut out in a substantially V-shape to form a pair of claw portions 22d.
Is formed. The claw portion 22d has an acute angle, so that the claw portion 22d can easily bite 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.

Now, the present invention will be described specifically with reference to examples.
I will tell. First, FIG. 6 shows a first embodiment of the present invention, will be described only different portions are denoted by the same reference numerals in FIG. 1, the same parts showing the basic configuration. The mounting member 28 of this embodiment is composed of two members, an elasticity providing member 29 and a locking member 30. The elasticity providing member 29 is formed in a substantially V-shape by an elastic body such as a plate spring. It is formed of a rigid body, for example, 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 providing member 29 is fitted into the connecting portion 31. Thereby, the elasticity providing member 29 and the locking member 30 are integrated. In this case, the locking member 3
The rear end of the elastic member 29 is extended from the bent portion 29a of the elasticity providing member 29 so as to protrude rearward, and the extended portion is 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 providing member 29 into the holding hole 21a of the holding portion 21 from behind.

According to the present embodiment thus configured, when the mounting member 28 is elastically deformed so as to rotate in the direction of arrow B by the fan bolt 27, the operation receiving portion 32 which receives the pressing force from the fan bolt 27 Since it is formed of a rigid body, it is not elastically deformed, and only the elasticity imparting member 29 is elastically deformed. For this reason, as shown in the basic configuration , unlike the one in which the projecting piece 23 made of a leaf spring, which may be elastically deformed by the pressing force received from the fan bolt 27, is used as the operation receiving portion, the upward direction of the fan bolt 27 is used. Since the movement can be efficiently converted into the rotation of the attachment member 28 in the direction of arrow B, the tip of the locking member 30 can be moved to the wooden frame 13 with a small operation amount of the fan bolt 27.
Can be separated from the upper surface.

FIGS. 7 and 8 show the second and third embodiments of the present invention.
The same parts as those in FIG. 6 showing the first embodiment are denoted by the same reference numerals, and only different parts will be described. ◎
In the second embodiment shown in FIG.
Are formed. When the fan bolt 27 is rotated so as to move upward, the tip of the fan bolt 27 presses the vicinity of the rear side of the through hole 33 against the operation receiving portion 32 to rotate the mounting member 28 in the direction of arrow B. . With the rotation of the mounting member 28, the pressing portion of the fan bolt 27 against the operation receiving portion 32 gradually moves to the front side, and the elasticity providing member 29 is elastically deformed by a predetermined amount, for example, locked as shown in FIG. When the member 30 is elastically deformed until it becomes a substantially horizontal state, the fan bolt 27 comes off the operation receiving portion 29 and enters the through hole 33. Thereafter, when the fan bolt 27 is further moved upward, the fan bolt 27 projects upward from the through hole 33.

In the third embodiment shown in FIG.
2 is bent at its rear end, and a notch 3
4 are formed. When the fan bolt 27 is rotated to move upward, the tip of the fan bolt 27 presses 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 group bolt 27 against the operation receiving portion 32 gradually moves to the rear side. Then, the elasticity providing member 29
Is elastically deformed by a predetermined amount, for example, as shown in FIG. 8B, until the locking member 30 becomes substantially horizontal, the fan bolt 27 comes off the operation receiving portion 32 and enters the notch 34. Thereafter, when the fan bolt 27 is further moved upward, the fan bolt 27 projects upward from the notch 34.

According to the second and third embodiments thus constructed, when the mounting member 28 is rotated in the direction of arrow B by a predetermined amount due to the upward movement of the fan bolt 27, the fan bolt 2
7 comes out of the operation receiving portion 32 and can protrude 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
Does not contact the inner top surface of the wooden frame 13 or even if it does, the locking member 30 depends on the elasticity of the elasticity providing member 29.
7 cannot be pressed sufficiently against the inner upper surface of the wooden frame 13, the fan bolt 27 is protruded above the mounting member 28 as shown in FIGS. 7B and 8B. And move the tip of the fan bolt 27 to the wooden frame 1
3, the main body 14 is pressed against the inner upper surface of the wooden frame 1.
3 can be attached.

In the third embodiment, the operation receiving portion 32 is provided with the bent portion 32a and the notch 34 is formed in the bent portion 32a. The same effect can be obtained even if a considerable amount of the cut is obtained.

[0031]

As described above, according to the present invention, when the main body is inserted into the opening, the mounting member presses the tip against the inner upper surface of the opening by its own elastic force. Since the main body is kept in the retaining state, the mounting operation can be performed easily and in a short time while the decorative cover is mounted on the main body. Further, when removing the main body, 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. I
The part of the mounting member that is attached to the upper surface of the body
Is formed by an elastic body such as a leaf spring and the inside of the opening is formed.
The side that is pressed against the top surface is a rigid body such as a rigid metal plate.
And the operation receiving part is integrally formed with the rigid part.
The operation receiving part is pushed by the screw member.
When pressed, the rigid operation receiving part does not elastically deform,
Since the elastic part of the material is elastically deformed, the screw member
The tip of the mounting member with the small amount of movement
Can be separated.

[0032]

[0033]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view for explaining a basic configuration of the present invention.

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

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

FIG. 4 is a partial longitudinal side view showing a state where the main body is removed from the wooden frame.

FIG. 5 shows another example of the mounting member in the basic configuration of the present invention.
Perspective view showing

FIG. 6 is a longitudinal sectional side view of a main part showing the first embodiment of the present invention.

FIG. 7 is a longitudinal sectional side view of a main part showing a second embodiment of the present invention.

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

FIG. 9 is a view corresponding to FIG. 1 showing a mounting configuration 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 projection (operation receiving portion), 27 is a fan bolt (screw member), 2
8 is a mounting member, 29 is an elasticity providing member, 30 is a locking member,
32 is an operation receiving unit.

Claims (1)

(57) [Claims] 1. A ventilation fan in which a main body having a detachable cosmetic cover on a front surface is inserted into an opening provided in a chamber wall by insertion, wherein a base end is mounted on an upper surface of the main body, and a distal end is mounted. The body is formed so as to be obliquely upward in a direction opposite to a direction in which the main body is inserted into the opening, and the tip portion is pressed against the inner upper surface of the opening by its own elastic force to prevent the main body from falling out of the opening. A mounting member to be in a state,
The side attached to the upper surface of the
Formed and pressed against the inner upper surface of the opening
Is formed of a rigid body such as a rigid metal plate.
A mounting member in which the operation receiving portion is integrally formed with a rigid portion of the main body; a screw member is inserted into an upper surface portion of the main body, and the operation receiving portion is pressed by a rotation operation from inside the main body. A screw member for resiliently deforming the mounting member in a direction in which a tip portion of the mounting member is separated from the inner upper surface of the opening portion against the elastic force of the mounting member.