WO2019138483A1

WO2019138483A1 - Ceiling fan

Info

Publication number: WO2019138483A1
Application number: PCT/JP2018/000418
Authority: WO
Inventors: 哲也福嶋; 真裕上田
Original assignee: 三菱電機株式会社
Priority date: 2018-01-11
Filing date: 2018-01-11
Publication date: 2019-07-18

Abstract

This ceiling fan is provided with: a tubular connecting portion having an axis direction in a vertical direction and fixed to a ceiling; a motor disposed on the opposite side to the ceiling with respect to the connecting portion in the axis direction of the connecting portion; rotor blades rotationally driven by means of the motor; a cover holding portion (5) fixed to the connecting portion on the ceiling side with respect to the motor; and a tubular cover portion fixed to the cover holding portion (5) with two cover portion-divided components sandwiching the connecting portion and surrounding the motor and the connecting portion from the outer peripheral side. The cover holding portion (5) has a first hook portion (5b) on a ceiling-side end surface thereof. The cover portion has a second hook portion on an inner-peripheral side thereof for hooking the first hook portion (5b). The cover portion is held onto the cover holding portion (5) as the second hook portion is hooked onto the first hook portion (5b).

Description

Ceiling fan

The present invention relates to a ceiling fan suspended from a ceiling and installed.

The ceiling fan is suspended from the ceiling of the room and installed for improving the air conditioning efficiency of the room or as decoration of the room. In Patent Document 1, a pipe whose axial direction is vertical and which is fixed to a ceiling, a motor suspended from the pipe, a rotary wing rotationally driven by the motor, and a motor are disposed around the pipe. There is disclosed a ceiling fan having a cylindrical cover portion.

JP, 2008-121551, A

As a configuration of the ceiling fan as described above, it has a cover holding part that is fixed to the pipe above the motor to prevent the cover part from falling, and the two divided cover parts are screwed to each other across the pipe When fastening, a part of inner periphery of a cover part is engaged on a cover holding part, and the structure by which the fall of a cover part is prevented is considered.

In this case, when installing the ceiling fan, the cover portion is held by the cover holding portion for the first time by fastening the two cover portion split parts with screws, so the two cover portion split parts are not fastened with screws. In the state, the cover part divided parts are not held by the cover holding part. When the ceiling fan installation work is performed by one person near the ceiling which is a high place, it is necessary to screw the two cover part divided parts while supporting the two cover part divided parts. For this reason, in such a ceiling fan, there is room for improvement in the workability.

This invention is made in view of the above, Comprising: It aims at obtaining a ceiling fan with high workability of attachment of a cover part.

In order to solve the problems described above and achieve the object, the ceiling fan according to the present invention has a cylindrical connecting portion whose axial direction is vertical and which is fixed to the ceiling, and a connecting portion relative to the connecting portion. A motor disposed on the side opposite to the ceiling in the axial direction, a rotary blade rotationally driven by the motor, a cover holding portion fixed to the connecting portion on the ceiling side with respect to the motor, and two cover portion split parts And a cylindrical cover portion fixed to the cover holding portion so as to surround the motor and the connecting portion from the outer peripheral side in a state of sandwiching The cover holding portion has a first hook on the end face on the ceiling side. The cover portion has a second hooking portion on the inner peripheral side for hooking the first hooking portion, and the second hooking portion is held by the cover holding portion by being hooked on the first hooking portion.

According to the present invention, there is an effect that a ceiling fan with high installation ability of attachment of a cover part is obtained.

A perspective view of a ceiling fan according to a first embodiment of the present invention Side view of ceiling fan according to the first embodiment of the present invention Principal part perspective view of ceiling fan according to Embodiment 1 of the present invention An exploded perspective view of a cover according to Embodiment 1 of the present invention

Below, the ceiling fan concerning embodiment of this invention is demonstrated in detail based on drawing. The present invention is not limited by the embodiment.

Embodiment 1
FIG. 1 is a perspective view of a ceiling fan 20 according to a first embodiment of the present invention. FIG. 2 is a side view of the ceiling fan 20 according to the first embodiment of the present invention. In FIG. 2, the state in which the cover part 11 is removed is shown. FIG. 3: is a principal part perspective view of the ceiling fan 20 concerning Embodiment 1 of this invention. In FIG. 3, the state in which the fixing bracket 1 and the cover part 11 are removed is shown. FIG. 4 is an exploded perspective view of the cover portion 11 according to the first embodiment of the present invention.

The ceiling fan 20 according to the first embodiment is attached to the fixture 1 fixed to the ceiling 30 with the U-shaped portion 1 a having a U-shape. The ceiling fan 20 is suspended by the connection plate 3 with the rubber roller 2 attached to the fixing bracket 1, the connection plate 3 connected to the roller 2, and the axial direction as the vertical direction, and the ceiling fan 30 is mounted on the ceiling 30. And a pipe 4 which is a tubular connecting portion to be fixed.

The ceiling fan 20 further includes a cover holding portion 5 fixed to the pipe 4 below the connection plate 3 and a main body 6 connected to the pipe 4 below the cover holding portion 5. In the ceiling fan 20, a rotary wing 8 whose rotation axis is coaxial with the pipe 4 is attached to the lower part of the main body 6. The rotary wing 8 has a bowl-shaped blade mounting plate 9 and a plurality of blades 10 attached to the blade mounting plate 9 and extending in the horizontal direction.

Inside the main body 6, a motor 7 which is a motor for driving the rotary wings 8 is accommodated. The motor 7 is disposed on the side opposite to the ceiling 30 in the axial direction of the pipe 4, that is, vertically below the pipe 4. The power supply line of the motor 7 is drawn into the back of the ceiling 30 through the pipe 4 and connected to a power supply (not shown). The ceiling fan 20 blows air from the ceiling 30 side to the floor surface when the rotary wings 8 are rotationally driven. Then, on the outer peripheral side of the motor 7 and the pipe 4, a cylindrical cover portion 11 which is fixed to the pipe 4 and the cover holding portion 5 so as to surround the motor 7 and the pipe 4 from the outer peripheral side is attached.

The cover holding portion 5 is fixed to the pipe 4 on the ceiling 30 side of the motor 7 below the connection plate 3. The cover holding portion 5 has a first hook portion 5 b on the upper end surface 5 a which is the end surface on the ceiling 30 side. The first hook portion 5 b has a circular shape projecting from the upper end surface 5 a to the ceiling 30 side, that is, upward. The cover holding portion 5 may be partially cut in a circular shape.

The cover 11 is a cover 4 and the cover holder 5 in a state in which the first cover division 11a and the second cover division 11b sandwiching the pipe 4 are divided into two identically shaped cover divisions. It is fixed to The first cover part division part 11a and the second cover part division part 11b are integrated by being mutually fastened by a screw 15 in a state of being temporarily fixed to the cover holding part 5 with the pipe 4 interposed therebetween, and having a tubular shape The cover 11 is fixed to the pipe 4 and the cover holder 5.

The first cover part division part 11a which is one of the two cover part division parts is a screw which penetrates the first cover part division part 11a from the outer peripheral surface of the first cover part division part 11a to the inner surface in the thickness direction A screw holding portion 12 capable of holding 15 is provided. In addition, the first cover part division part 11a is placed in the cover part 11 from the outer peripheral surface of the second cover part division part 11b which is the other cover part division part of the two cover part division parts constituting the cover part 11. It has a screw fixing portion 13 to which the screw 15 held in the outer peripheral surface of the second cover part divided part 11b is fixed by penetrating the two cover part divided part 11b in the thickness direction.

The screw holding portion 12 is configured such that the outer peripheral surface of the second cover portion divided part 11b is in the thickness direction when the first cover divided portion 11a and the second cover divided portion 11b are fastened and integrated with the screw 15. It is a holding | maintenance part of the screw 15 provided in the position corresponding to the screw 15 to penetrate. The screw fixing portion 13 has a screw hole, and is a screw fixing portion in which a screw 15 penetrating the outer peripheral surface of the second cover portion divided component 11b in the thickness direction is fixed to the screw hole. Since the first cover part division part 11 a and the second cover part division part 11 b have the same shape, the second cover part division part 11 b also has a screw holding part 12 and a screw fixing part 13.

Further, the cover portion 11 has a second hooking portion 14 that hooks the first hooking portion 5b of the cover holding portion 5 at a position in contact with the cover holding portion 5 on the inner peripheral side. The second hooking portion 14 is provided in a semicircular shape obtained by dividing a circular shape on each of the first cover portion divided component 11 a and the second cover portion divided component 11 b. The second hooking portion 14 has a semicircular shape that protrudes to the main body 6 side, that is, downward, in the first cover portion divided component 11 a and the second cover portion divided component 11 b. The second hooking portion 14 has a circular shape when the first cover portion divided component 11 a and the second cover portion divided component 11 b are fixed by the screw 15. The inner peripheral surface of the second hooking portion 14 has a shape along the outer peripheral surface of the pipe 4. As a result, the inner peripheral surface of the second hook portion 14 contacts the outer peripheral surface of the pipe 4 when the first cover portion divided component 11 a and the second cover portion divided component 11 b are fixed by the screw 15, It is fixed to the outer peripheral surface of the pipe 4.

The second hook portion 14 has a circular shape that is sized to fit inside the circular first hook portion 5b. That is, the second hooking portion 14 has a ring shape having an outside dimension smaller than the circular inside diameter of the first hooking portion 5b in the radial direction centering on the axis of the pipe 4 and the cover holding portion 5 . The second hooking portion 14 may be partially cut in a circular shape.

And when attaching the cover part 11 to the cover holding part 5, the 2nd hooking part 14 is penetrated from above to the inner peripheral side of the 1st hooking part 5b, and is caught by the 1st hooking part 5b. 11 is held by the cover holding portion 5 even in a state where the first cover portion divided component 11a and the second cover portion divided component 11b are not fastened by the screw 15, and can be temporarily fixed to the cover holding portion 5 . Further, the second hooking portion 14 is held by the first hooking portion 5b in a state of being hooked to the first hooking portion 5b even when the cover portion 11 is fixed to the pipe 4 and the cover holding portion 5 .

The first hooking portion 5b and the second hooking portion 14 can be hooked without requiring fastening of a screw. Thus, in the ceiling fan 20, the falling of the cover 11 in the vertical direction and the falling of the cover 11 in the outer diameter direction can be easily suppressed when the cover 11 is attached to the cover holder 5. Thereby, in the ceiling fan 20, the workability of attachment of the cover part 11 improves.

Then, the shaft of the first hook 5b of the cover holder 5, the semicircular and circular shafts of the second hook 14 and the axis of the pipe 4 It is coaxial when fixed.

Thus, in a state where at least one of the first cover part division part 11a and the second cover part division part 11b is temporarily fixed to the cover holding part 5, the cover part division parts temporarily fixed to the cover holding part 5 It is held rotatably. That is, the first hooking portion 5 b and the second hooking portion 14 do not have a positioning function in the rotational direction with the axis of the cover portion 11 as the rotation axis with respect to the cover portion 11, and can be rotatably hooked. That is, before the cover portion 11 is fixed, the first cover portion divided component 11 a and the second cover portion divided component 11 b are rotatably held with respect to the cover holding portion 5.

Thereby, when attaching the cover part 11, by hooking one 2nd hooking part 14 among the 1st cover part division parts 11a and the 2nd cover part division parts 11b to the 1st hook part 5b After being temporarily fixed to the cover holding portion 5, the temporarily fixed cover portion divided parts can be rotated around the pipe 4. Therefore, the operator can temporarily fix the other cover part divided component to the cover holding part 5 without changing the posture.

Also, when fastening the first cover part split part 11a and the second cover part split part 11b to each other with the screw 15, the first cover part split part 11a and the second cover part split without the operator changing the posture. The component 11 b can be rotated around the pipe 4. And a worker can fasten two screws 15 from a single direction with respect to the 1st cover part division part 11a and the 2nd cover part division part 11b, and can fix the cover part 11. As shown in FIG. Thereby, in the ceiling fan 20, the workability of attachment of the cover part 11 improves.

Further, the cover portion 11 has a size that covers the pipe 4, the cover holding portion 5, the main body 6 and the motor 7 in the extension direction of the pipe 4, that is, in the axial direction of the pipe 4. The axial direction of the pipe 4 is the same as the vertical direction. Thereby, the cover unit 11 realizes an integral external appearance in which the connecting surfaces of the components of the ceiling fan 20, that is, the connecting surfaces of the pipe 4, the cover holding unit 5, and the main body 6 are not visible in appearance. Can have a high design appearance.

When installing the ceiling fan 20 on the ceiling 30, first, the fixing bracket 1 is fixed to the ceiling 30. Then, the roller 2 is attached to the fixing bracket 1 by fitting the U-shaped portion 1 a into the fixing bracket 1. Next, the connection plate 3 is bolted and fixed to the roller 2. Next, the pipe 4, the cover holding portion 5, the main body 6 accommodating the motor 7, and the rotary wings 8 are sequentially fixed to the connection plate 3. Then, the cover portion 11 is fixed to the pipe 4 and the cover holding portion 5.

Next, the first cover part division component 11 a is disposed on the cover holding part 5 in a state in which the second hooking part 14 is hooked on the first hooking part 5 b of the cover holding part 5 and is temporarily fixed. Next, the first cover part division part 11a disposed on the cover holding part 5 is rotated around the pipe 4 in a state of being hooked to the first hook 5b. Next, the second cover part division part 11b is disposed on the cover holding part 5 in a state where the second hooking part 14 is hooked on the first hooking part 5b of the cover holding part 5, and is temporarily fixed. Therefore, the operator can temporarily fix the first cover part division part 11a and the second cover part division part 11b to the cover holding part 5 without changing the posture.

At this time, the first cover part divided part 11a and the second cover part divided part 11b hold the cover without performing screw fastening or fitting of the first cover part divided part 11a and the second cover part divided part 11b. Since it is held by the portion 5, the effect that the workability of attaching the cover portion 11 is good can be obtained.

Next, insert the screw 15 into the inner peripheral surface side of the first cover part divided part 11a from the outer peripheral surface of the first cover part divided part 11a and pass it through the screw holding part 12 and fix the screw of the second cover part divided part 11b. It fixes to the part 13. Further, the screw 15 is inserted from the outer peripheral surface of the second cover part division part 11b to the inner peripheral surface side of the second cover part division part 11b and passed through the screw holding part 12, and the screw fixing part of the first cover part division part 11a Fix it to 13. As a result, the first cover part division part 11 a and the second cover part division part 11 b are screwed together by the screw 15, and the cover part 11 is fixed to the pipe 4 and the cover holding part 5.

At this time, after fastening the screw holding portion 12 of the first cover portion divided component 11a and the screw fixing portion 13 of the second cover portion divided component 11b with the screw 15, the first cover portion divided component 11a and the second cover portion By rotating the divided component 11 b in the axial direction of the pipe 4, the positions of the first cover divided component 11 a and the second cover divided component 11 b can be reversed. Thereby, the operator fastens two screws from a single direction to the first cover part division part 11a and the second cover part division part 11b without changing the position and without changing the posture. Then, since the cover portion 11 can be fixed, the effect that the workability of attachment of the cover portion 11 is good can be obtained.

As described above, when the cover unit 11 is attached to the cover holding unit 5, the ceiling fan 20 according to the first embodiment includes the first hook 5 b of the cover holding unit 5 and the second hook of the cover unit division parts. The hooking portion 14 can be hooked without requiring the fastening of a screw. Thus, the ceiling fan 20 causes the cover portion 11 to fall in the vertical direction when the cover portion 11 is attached, and to cause the cover portion 11 to fall in the outer diameter direction. This can be easily suppressed, and the workability of attaching the cover portion 11 is improved.

In addition, the ceiling fan 20 according to the first embodiment has a structure in which the cover part divided component is rotatably held by the cover holding unit 5 before the cover 11 is fixed. As a result, when the operator fastens the first cover part divided part 11a and the second cover part divided part 11b with each other with the screw 15, the first cover part divided part 11a and the second cover part do not change the posture. It is possible to temporarily fix the split part 11 b and to fasten the two screws 15. Therefore, as the ceiling fan 20, a ceiling fan with high installation workability of the cover portion 11 is realized.

In addition, the cover portion 11 has a size that covers the pipe 4, the cover holding portion 5, the main body 6, and the motor 7 in the vertical direction, that is, in the extension direction of the pipe 4. As a result, the divided surfaces of the components of the ceiling fan 20, i.e., the connecting surfaces of the pipe 4, the cover holding portion 5 and the main body 6, are not visible in appearance, and an appearance with high designability can be realized.

Further, the ceiling fan 20 includes the first hooking portion 5b in the cover holding portion 5, and the screw holding portion 12, the screw fixing portion 13, and the second cover portion divided component 11a and the second cover portion divided component 11b. As described above, the cover portion 11 can be easily attached only by providing the hook portion 14. Therefore, the ceiling fan 20 can be realized at low cost because it does not require the addition of special additional components.

Therefore, according to the ceiling fan 20 according to the first embodiment, it is possible to obtain a ceiling fan having high installation workability of attachment of the cover portion 11 at the time of installation of the ceiling fan and high design after installation at low cost. Play an effect.

The configuration shown in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and one of the configurations is possible within the scope of the present invention. Parts can be omitted or changed.

DESCRIPTION OF SYMBOLS 1 Fixing bracket, 1a U-shaped part, 2 rollers, 3 connection plates, 4 pipes, 5 cover holding parts, 5a upper end face, 5b 1st hook part, 6 main body, 7 motor, 8 rotors, 9 blades attachment Plates, 10 blades, 11 cover portions, 11a first cover portion division parts, 11b second cover portion division parts, 12 screw holding portions, 13 screw fixing portions, 14 second hook portions, 15 screws, 20 ceiling fan, 30 ceiling.

Claims

A cylindrical connecting portion which is fixed to the ceiling with the axial direction as the vertical direction;
A motor disposed on the side opposite to the ceiling in the axial direction of the connection portion with respect to the connection portion;
A rotary blade rotationally driven by the motor;
A cover holding portion fixed to the connecting portion on the ceiling side with respect to the motor;
A cylindrical cover part fixed to the cover holding part by surrounding the motor and the connecting part from the outer peripheral side in a state in which two cover part split parts sandwich the connecting part;
Have
The cover holding portion has a first hook portion at an end face on the ceiling side,
The cover portion has a second hooking portion on the inner circumferential side for hooking the first hooking portion,
That the second hooking portion is held by the cover holding portion by being hooked on the first hooking portion;
Ceiling fan characterized by.
The cover portion is held by the cover holding portion so as to be rotatable about the cylindrical connecting portion as a shaft by the second hooking portion being hooked on the first hooking portion.
In the state in which the second hook portion is hooked on the first hook portion, the cover portion is fixed by screwing in a state in which the two cover portion divided parts sandwich the connection portion,
The ceiling fan according to claim 1, characterized in that
The two cover part division parts comprise a screw holding part and a screw fixing part,
The screw holding portion is a holding portion capable of holding a screw that penetrates the cover part divided component in the thickness direction from the outer peripheral surface,
The screw fixing part penetrates the other cover part divided part in the thickness direction from the outer peripheral surface of the other cover part divided part of the two cover part divided parts into the other cover part divided part A fixing part to which a screw fixed to the outer peripheral surface of
The ceiling fan according to claim 1 or 2, characterized in that
The cover portion covers the connection portion, the cover holding portion, and the motor in an axial direction of the connection portion.
The ceiling fan according to any one of claims 1 to 3, characterized in that
The two cover part division parts have the same shape,
The ceiling fan according to any one of claims 1 to 4, characterized in that