JPH11210676A - Ceiling fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling fan comprising each blade stopping part simply inserted in and locked on to a holder, in which each blade is mounted to a rotor, without being screwed in and locked on. SOLUTION: When a blade is to be inserted so as to be mounted, the insertion of the blade 6 into the inlet of a holder 2 thereby allows the inserted end 61 of the blade 6 to abut against the abutting surface of an engaging body, and to push back the engaging body 25 upward, and concurrently, the blade 6 can be fixed thereto by letting the fit-in part 27 of the engaging body 25 be dropped in and fitted in a holding part 63 at the position where the blade has been completely inserted. When the blade is to be taken out, the engaging body 25 can be pushed back upward by letting a pin 28 be pressed and pushed in the inside of the holder 25 against the energizing force of a spring 29, so that the fit-in part 27 of the engaging body 25 is thereby separated from the holding part 63 so as to allow the lock of the blade 6 to be released. By this constitution, the blade 6 can freely be pulled out from the holder 2, and can thereby be taken out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling fan suspended from a ceiling by a support member,
More specifically, the present invention relates to a ceiling fan in which an outer rotor of a motor having blades integrally attached to an outer peripheral portion is rotated to blow air downward.

[0002]

2. Description of the Related Art A commonly known ceiling fan is shown in FIG.
As shown in FIG. 2, a ceiling fan main body is composed of a canopy (upper cover) 3, an outer rotating body 5 of a driving motor, and a lower cover 4, and a blade 6 is attached to the outer rotating body 5 to support a pipe ( Suspended from the ceiling by a support post 1.

[0003] Since the blades of the conventional ceiling fan are mainly made of iron plate, the weight is inevitably heavy. When the blades 6 are mounted on the outer rotating body 5 of the ceiling fan main body, the blades must support the weight. Screws were used to secure the balance.

[0004]

It is very troublesome to screw the blades to the holder of the outer rotating body with screws using screws, and removing the blades is also troublesome and inefficient. Further, since the blades are usually mounted after the outer rotating body is mounted on the ceiling, the mounting work is not easy because the work is performed at a high place near the ceiling surface, and simple means is required.

Accordingly, the present invention has been made to solve such a problem, and includes a blade stopper portion for inserting a blade into a holder attached to a rotating body without screwing the blade to easily lock the blade. It is another object of the present invention to provide a ceiling fan that can make work in a high place near a ceiling surface as easy as possible.

[0006]

In order to achieve the above object, a ceiling fan according to a first aspect of the present invention is a ceiling fan having a rotating body with blades at a lower end of a hanging support shaft. A blade holder is provided on the provided holder to detachably lock the blade.

A ceiling fan according to a second aspect of the present invention is a ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, wherein the holder is attached to the rotating body of the ceiling fan and includes a spring and an engaging body. A holder is provided in the blade insertion hole of the holder, a similar holder is provided in the blade of the ceiling fan, the blade is inserted into the engaging body of the holder, and in the inserted state, the blade is inserted into the holder of the holder. The engaging body is pushed back by the spring to be matched, and the blade holding portion is fitted to the holding portion of the holder, and the blade holding portion fixes the blade.

[0008] Thus, when attaching the blades of the ceiling fan to the holder of the rotating body, as in the case of the conventional type in which screws are respectively screwed with screws, it takes time and effort to attach and remove the same troublesome work. The blade can be easily locked and removed simply by inserting the blade into the holder, which is convenient for cleaning.

A ceiling fan according to a third aspect of the present invention is a ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, wherein a blade insertion hole is provided in a holder attached to the rotating body and covered with a lid. And a spring that forms an inclined portion inclined with respect to the blade insertion hole, provides an engaging body movably along the inclined portion, and moves the engaging body in a direction intersecting the axis of the blade insertion hole. A pin is provided for mounting, and a holding portion is formed on the blade near the insertion end. The engaging body fits into the guide surface slidable on the inclined portion, a contact surface that comes into contact with the insertion end of the blade, and the holding portion. And a fitting portion for fitting.

According to a fourth aspect of the present invention, there is provided a ceiling fan having a rotating body with a blade at a lower end of a hanging support shaft, wherein a blade insertion hole is provided in a holder attached to the rotating body and covered with a lid. And a spring that forms an inclined portion inclined with respect to the blade insertion hole, provides an engaging body movably along the inclined portion, and moves the engaging body in a direction intersecting the axis of the blade insertion hole. A pin is provided for mounting, and a holding portion is formed on the blade near the insertion end. The engaging body fits into the guide surface slidable on the inclined portion, a contact surface that comes into contact with the insertion end of the blade, and the holding portion. When the blade is inserted, the insertion end of the blade comes into contact with the contact surface of the engagement body and pushes back the engagement body, and at the insertion position of the blade, the insertion part of the engagement body fits into the holding portion. The blade is provided with a blade stopper for fixing the blade.

According to a fifth aspect of the present invention, there is provided a ceiling fan including a rotating body with a blade at a lower end of a hanging support shaft, wherein a blade insertion hole is provided in a holder attached to the rotating body and covered with a lid. And a spring that forms an inclined portion inclined with respect to the blade insertion hole, provides an engaging body movably along the inclined portion, and moves the engaging body in a direction intersecting the axis of the blade insertion hole. A pin is provided for mounting, and a holding portion is formed on the blade near the insertion end. The engaging body fits into the guide surface slidable on the inclined portion, a contact surface that comes into contact with the insertion end of the blade, and the holding portion. And when the blade is removed, presses the pin to push back the engaging body,
A configuration is provided in which a fitting portion of the engaging body is separated from the holding portion and a blade stopper is provided to release locking of the blade.

In this way, when attaching the blades of the ceiling fan to the holder of the rotating body, as in the conventional type in which screws are screwed with screws, there is no need for installation work, and when removing them, similarly troublesome work is required. Instead, the blade can be easily locked by simply inserting the blade into the holder, and can be easily removed by pressing the pin of the holder.

A ceiling fan according to claim 6 of the present invention is a ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, wherein the blades are constituted by a mounting resin cover and the blades, and the blades are formed by the blades. It is configured to be detachably attached to the outer rotating body to form a rotating body with blades.

In this way, the blades are attached to the lower cover of the ceiling fan in advance on the floor and integrated therewith, and this is lifted up to the outer rotating body of the ceiling fan body already bolted to the ceiling, and is attached to the ceiling surface. The installation and installation of the ceiling fan can be performed with as little work as possible at a nearby high place as simple as possible.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a mounting side view of the ceiling fan of the present invention. The overall configuration of the ceiling fan includes a canopy (upper cover) 3 for covering the support, an outer rotating body 5 of the driving motor, and a lower cover 4.
And the blades 6 are attached to the holder 2 of the outer rotating body 5, and are suspended from the ceiling.

FIG. 2 is a sectional view of such a ceiling fan, and the same components as those in FIG. 1 are denoted by the same reference numerals. In the figure, a simple mounting bracket 7 screwed to the ceiling and a hanger 10 of a pipe support 1 are engaged and fixed, and a stator 51 of a driving motor for a ceiling fan is fixed to the support 1. . An outer rotor 5 is formed integrally with the outer rotor 52 of the motor. The holder 2 is screwed to the outer rotor 5, and the blade 6 of the ceiling fan is screwed to the holder 2 without screwing. It is inserted and locked.

The lower cover 4 is attached to the tip of the column 1, and a sealing 81 for supplying power to a fluorescent lamp such as a circline is disposed inside the lower cover 4 if necessary. Also,
A ceiling 8 attached to the ceiling is arranged inside the simple mounting bracket 7, and a power cord 9 pulled out therefrom.
Supplies electric power to the control board (printed circuit board) 12 and the windings of the stator 51 of the motor through the hollow of the pipe support 1, and in some cases, can supply power to the fluorescent lamp and the like from the ceiling 81 of the lower cover 4. is there.

As shown in FIG. 3, the relationship between the outer rotating body 5 and the holder 2 is such that the outer rotating body 5 is formed integrally with the outer rotor of the motor, whereas in this example, four blades are provided. Since it can be attached, it has a structure in which four holders 2 are screwed at equal intervals.

Next, a description will be given of a first embodiment of the blade stopper portion of the holder, which is a feature of the ceiling fan according to the present invention, with reference to FIGS. In FIG. 4, the holder 2 attached to the outer rotating body of the ceiling fan includes an engaging body 21 having a holding portion for holding the tip of the blade, and a spring 23 for applying a biasing force to the engaging body 21. The blade insertion hole is provided with an inclined portion 22, and the blade 6 of the ceiling fan is provided with a similar inclined portion 62.
Is provided. The leading end 61 of the blade 6 is inclined from the engagement body 21
The insertion spring 23 is pressed into the holding portion of the first member and compressed.

Subsequently, referring to FIG. 5, with the tip 61 of the blade 6 inserted into the holding portion of the engaging member 21, the blade 6 is pushed down so as to be parallel to the holder 2, and the hand is released. The engaging body 21 is pushed back by the spring 23 with the tip 61 aligned with the holding portion of the engaging body 21, and the inclined surface 62 of the blade 6 is fitted to the inclined surface 22 of the holder 2, and the blade 6 is firmly attached to the holder 2. Can be fixed.

When the blade 6 is to be removed, the blade 6 is pressed in the direction of the engaging member 21 in the reverse
After compressing the blade 3, the tip of the blade 6 can be drawn obliquely from the holding portion of the engaging body 21 by raising the hand of the blade 6 obliquely.

As described above, when attaching the blades of the ceiling fan to the holder of the rotating body, unlike the conventional type of screwing with screws and nuts, it does not take much time and effort to remove the same. The blade can be easily locked and removed simply by inserting the blade into the holder without requiring any complicated work.

Next, a description will be given of a second embodiment of the blade stopper portion of the holder which is a feature of the ceiling fan according to the present invention with reference to FIG. In FIG. 6, a blade insertion hole and an inclined portion 26 inclined with respect to the blade insertion hole are formed in the holder 2 attached to the rotating body, and an engaging member 25 is provided movably along the inclined portion 26. A pin 28 for mounting a spring 29 for moving the engagement body 25 in a direction intersecting with the axis of the blade insertion hole is provided.

Normally, the spring 29 urges the pin 28 so as to be located outside the holder 2, and presses the pin 28 to push the pin 28 into the holder 2 so that the engagement body 25 is inserted into the blade insertion hole. It can be moved in an upward direction that intersects the axis. The blade 6 has a holding portion 6 near the insertion end.
The engaging body 25 includes a guide surface slidable on the inclined portion 26 of the holder 2, a contact surface that comes into contact with the insertion end 61 of the blade, and a fitting portion 27 that fits into the holding portion 63. Also,
A limit switch 30 is arranged at the insertion end of the blade 6 at the innermost part of the holder 2.

In such a blade stopping structure, the blade 6
6A, the blade 6 is inserted from the inlet of the holder 2 from the state shown in FIG.
The insertion end 61 of the engagement body 2 contacts the contact surface of the engagement body 25 to
5 is pushed back upward, and the fitting portion 27 of the engaging body 25 is dropped into the holding portion 63 at the position where the blade insertion is completed, thereby fitting the blade 6 as shown in FIG. 6 (B).
Can be fixed.

At the time of removing the blade, the pin 28 is pressed against the urging force of the spring 29 and pushed into the holder 2 as shown in FIG.
5 can be pushed back upward, the fitting portion 27 of the engaging body 25 is separated from the holding portion 63, and the lock of the blade 6 is released. This allows the blade 6 to be freely pulled out of the holder 2 and removed.

In this way, when attaching the blades of the ceiling fan to the holder of the rotating body, as in the case of the conventional type in which screws are respectively screwed with screws, it takes time and effort to attach and remove the same troublesome work. Without stopping, simply insert the blade into the holder and lock it easily,
It can be easily removed by pressing the pin of the holder.

Next, an embodiment of a ceiling fan according to the present invention, which allows a simple installation work of a blade near the ceiling surface, will be described with reference to FIGS. 7, 8 and 9. FIG. FIG. 7 is a cross-sectional view of the ceiling fan after the blade mounting operation and the ceiling mounting are completed.

In FIG. 7, the same components as those in FIG. 2 are denoted by the same reference numerals. In the figure, the simple mounting bracket 7 inside the canopy 3 and the column 1 of the pipe are fixed at an engaging portion, and the column 1 is fixed with a stator 51 of a motor for driving a ceiling fan. The outer rotor 52 of the motor is integrally formed with the outer rotor 5, and the outer rotor 5 has blades 6.
The boss 14 to which is attached is attached and fixed.

The boss 14 is attached to the outer rotating body 5 by tightening with a tightening nut 13 an extension cylindrical portion 53 of the outer rotating body 5 which rotatably covers the outer periphery of the support 1 with an extension. It is mounted and fixed so that it can rotate integrally with the rotating body 5. A sealing 8 is arranged inside the simple mounting bracket 7, and a power cord 9 pulled out therefrom passes through the hollow of the support 1 of the pipe to the control board (printed board) 12 and the winding of the stator 51 of the motor. Supply power.

A procedure for attaching the blade 6 to the boss 14 in advance will be described with reference to FIG. First, the boss 14, the blade 6 and the mounting screw 11 are prepared. The required number of blades 6 can be three or four as required.
1 is required accordingly. After matching the screw holes of the blades 6 with the mounting holes 42 of the boss 14, respectively, the blades 6 are mounted and fixed with the screws 11. This stage of work can be performed on the floor.

Next, as shown in FIG. 9, the boss 14 integrated with the blade 6 and the mounting screw 11 is an extension of the support column 1 of the ceiling fan body already bolted to the ceiling, and has an outer periphery. Is lifted up to the mounting position of the outer rotating body 5 of the ceiling fan through the through-hole 41 at the bottom of the extended cylindrical portion 53 of the outer rotating body 5 that rotatably covers the outer rotating body 5. Then, the ceiling fan shown in FIG. 7 is completed by tightening and tightening the outer nut formed on the extension cylindrical portion 53 of the outer rotating body 5 with the tightening nut 13.

FIG. 10 is a front view of the assembled ceiling fan viewed from below the ceiling fan. In the figure, the blades 6 are respectively attached to bosses 14 by mounting screws 11, and the bosses 14 integrated with the blades 6 are fastened and fixed to the extension cylinder 53 of the outer rotating body 5 by the fastening nuts 13.

As described above, the blades are previously attached to the boss of the ceiling fan on the floor and integrated therewith, and this is lifted and attached to the outer rotating body of the ceiling fan body already bolted to the ceiling. It is possible to assemble and install ceiling fans by minimizing work at high altitudes close to the ceiling.

[0035]

As described above, according to the present invention, when the blades of the ceiling fan are attached to the holder of the rotating body, as in the case of the conventional type in which screws are respectively screwed with screws, it is possible to remove the ceiling fan without troublesome mounting. Similarly, the blade can be easily locked and removed simply by inserting the blade into the holder without any troublesome work. Further, the blade is easily locked by simply inserting the blade into the holder, and can be easily removed by pressing the pin of the holder, which is convenient for cleaning.

Also, the boss of the ceiling fan is previously attached to the boss of the ceiling fan on the floor and integrated therewith, and this is lifted and attached to the outer rotating body of the ceiling fan body already bolted to the ceiling, so that it is close to the ceiling surface. The installation and installation of the ceiling fan can be performed by minimizing work at high altitudes.

[Brief description of the drawings]

FIG. 1 is a side view of a ceiling fan according to the present invention.

FIG. 2 is a sectional view of a ceiling fan according to the present invention.

FIG. 3 is a diagram showing a relationship between an outer rotating body of a ceiling fan and a holder.

FIG. 4 is a first embodiment of the blade stopper (during insertion).

FIG. 5 is a first embodiment of the blade stopper (insertion completed).

FIG. 6 shows a second embodiment of the blade stopper.

FIG. 7 shows another embodiment of the ceiling fan of the present invention.

FIG. 8 is a mounting procedure diagram of a boss and a blade.

FIG. 9 is a view showing a procedure for attaching a boss integrated with a blade to a ceiling fan main body.

FIG. 10 is a lower front view of the ceiling fan of the present invention.

FIG. 11 is a configuration diagram of a conventional general ceiling fan.

[Explanation of symbols]

 Reference Signs List 1 pipe support 10 hanger 2 holder 3 canopy (upper cover) 4 lower cover 5 motor outer rotating body 51 motor stator 52 motor outer rotor 53 extension cylindrical part of outer rotating body 6 blade 61 blade tip 62 Inclined surface of blade 63 Holder of blade 7 Simple mounting bracket 8, 81 Sealing 9 Power cord 11 Mounting nut 12 Printed circuit board 13 Tightening nut 14 Boss 21, 25 Engagement body 22 Inclined portion of holder 23, 29 Spring 24 Lid 27 Fitting Part 28 pin 30 limit switch

Claims (6)

[Claims] 1. A ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, comprising a blade stopper for detachably locking the blades in a holder provided on the rotating body. Ceiling fan. 2. A ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, a holder attached to the rotating body of the ceiling fan and including a spring and an engaging body, and a blade insertion hole of the holder. A holding portion is provided, and a similar holding portion is provided on the blade of the ceiling fan, the blade is inserted into the engaging member of the holder, and in the inserted state, the engaging member is pushed back by a spring that matches the blade with the holding portion of the holder. A ceiling fan comprising a blade retaining portion for fixing a blade by fitting a retaining portion of a blade to a retaining portion of a holder. 3. A ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, wherein a holder attached to the rotating body and covered with a lid is inclined with respect to the blade insertion hole. An inclined portion is formed, an engaging body is provided movably along the inclined portion, and a pin for mounting a spring for moving the engaging body in a direction intersecting the axis of the blade insertion hole is provided. A holding portion is formed near the end, and the engaging body includes a guide surface slidable on the inclined portion, a contact surface that comes into contact with an insertion end of the blade, and a fitting portion that fits into the holding portion. A special feature of the ceiling fan. 4. A ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, wherein a holder attached to the rotating body and covered with a lid is inclined with respect to the blade insertion hole and the blade insertion hole. An inclined portion is formed, an engaging body is provided movably along the inclined portion, and a pin for mounting a spring for moving the engaging body in a direction intersecting the axis of the blade insertion hole is provided. A holding portion is formed near the end, the engaging body includes a guide surface slidable on the inclined portion, a contact surface that comes into contact with an insertion end of the blade, and a fitting portion that fits into the holding portion, and the insertion of the blade is performed. Sometimes the insertion end of the blade comes in contact with the contact surface of the engagement body to push back the engagement body, and at the insertion position of the blade, the fitting portion of the engagement body fits into the holding portion and has a blade stopper that fixes the blade. A ceiling fan characterized by becoming. 5. A ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, wherein a holder attached to the rotating body and covered with a lid is inclined with respect to the blade insertion hole. An inclined portion is formed, an engaging body is provided movably along the inclined portion, and a pin for mounting a spring for moving the engaging body in a direction intersecting the axis of the blade insertion hole is provided. A holding portion is formed near the end, the engaging body includes a guide surface slidable on the inclined portion, a contact surface that comes into contact with an insertion end of the blade, and a fitting portion that fits into the holding portion. A ceiling fan, wherein the ceiling fan is sometimes provided with a blade stopper which presses the pin to push back the engaging body, and a fitting part of the engaging body is separated from the holding part to unlock the blade. 6. A ceiling fan having a rotating body with blades at a lower end of a hanging support shaft, wherein the blade body is constituted by a mounting resin cover and a blade, and the blade body is detachably mounted on an outer rotating body. A ceiling fan characterized by a rotating body with blades.