JP3103662B2 - Fan swinging device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swinging device for a fan.

[0002]

2. Description of the Related Art In general, a swinging device of a fan having a swinging motor disposed behind a motor for driving a blade is used.

Conventionally, this type of electric fan swinging device is shown in FIG.
The configuration shown in FIG.

As shown, a small mounting bracket 102 is fixed to the rear of a motor 101 for driving a blade (not shown), a swing motor 103 is mounted on the mounting bracket 102, and an output shaft 103a is connected to an opening of the mounting bracket 102. Protruding below the part.

[0005] A crank plate 104 is fixed to the output shaft 103a with a pin 105. The electric motor 101 is supported by a support 107 via a vertically extending support shaft 101a.

A bearing tube 109 is inserted into the cylindrical portion 108 of the support 107, and the support 10 is inserted into the bearing tube 109.
7 is inserted. A receiving portion 108a protrudes from a side portion of the cylindrical portion 108 of the supporting member 107, and the receiving portion 108a and the crank plate 104 are connected by a connecting member 110.

In the above configuration, by driving the swing motor 103, the rotational force of the output shaft 103a is applied by the crank plate 104 to the connecting member 1 centered on the receiving portion 108a.
This was converted into ten fan-shaped reciprocating motions, and the electric motor 101 performed a swinging motion about the cylindrical portion 108 of the support 107.

[0008]

In such a conventional swinging device for a fan, the rear portion of the electric motor 101 protrudes, so that the thickness dimension becomes large, the blower portion becomes large, and handling is inconvenient. There was a problem that a design suitable for the project could not be obtained.

[0009] Further, when the connecting tool 110 is shortened to reduce the swing mechanism, there is a problem that the swing angle becomes large unless the center distance between the center of the cylindrical portion and the receiving portion is also reduced.

Further, when the connecting member 110 is shortened, the work space for assembling is reduced, so that it is difficult to mount the connecting member 110, and the bending due to the minute gap in the connecting portion is enlarged and transmitted, so that the swinging motion can be smoothly performed. There was a problem that could not be done.

The present invention solves the above-mentioned problems. Even if the motor portion is made thinner and smaller, and the length of the connecting member is shortened, the swing angle is not increased and obstacles to the swing motion are prevented. The aim is to reduce the gap and smoothly swing the head.

[0012] The second purpose is to easily attach the connecting tool,
Another object of the present invention is to provide a smooth swinging motion while suppressing the bending of the connecting device.

[0013]

A first means for achieving the first object of the present invention is a motor for driving the blades, an integral mounting plate provided on the motor, and a vertical attachment to the mounting plate. A support shaft provided, and the motor is supported via the support shaft.
A support for the swing motor is mounted on the mounting plate below the said electric motor, said toward the direction parallel to the support shaft and the output shaft of the swing motor that protrudes toward the opposite direction of the electric motor, wherein a cylindrical portion provided on the support, and the notch portion provided in the cylindrical portion, and a bushing which is inserted into the cylindrical portion, and a receiving portion projecting from the side portion of the bearing cylinder, the swing motor output It has a crank plate provided on a shaft and a connector for connecting the crank plate and the receiving portion, and has a configuration in which a receiving portion of the bearing tube is fitted into a cutout portion of the cylindrical portion.

According to a second means for achieving the second object, a cylindrical projection is integrally formed at one end of the connecting member, and a hole having a large depth dimension is provided in a receiving portion of the bearing cylinder. The cylindrical projection of the connecting member is rotatably supported by the hole of the receiving portion.

[0015]

According to the first aspect of the present invention, since the oscillating motor is disposed below the motor for rotating the blades, the thickness of the oscillating motor is reduced. Since the motor is fixed, the dimension between the support shaft and the output shaft of the oscillating motor can be maintained for the driving force at the time of oscillating , and since the connecting portion can be directly attached to the bearing cylinder, the support In the relationship between the shaft and the coupling,
The clearance between the bearing cylinder and the cylinder of the support is eliminated, reducing the cause of rattling and increasing the swing angle because the bearing of the bearing cylinder is closer to the support shaft that is the center of swing. Instead, it performs a swing motion at a fixed angle.

According to the configuration of the second means, the cylindrical projection integrally projecting from the connecting member pivots while being supported by the hole having a large depth dimension, so that unnecessary force is applied to the connecting member from the crank plate. Is transmitted, the posture of the connecting member is correctly maintained in the hole portion, and the connecting device smoothly swings.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described with reference to FIG.

As shown in the figure, an annular support frame 2 is fixed to a central outer peripheral portion of a motor 1 for driving a blade (not shown).

At the lower part of the support frame 2, a mounting plate 3 extends horizontally toward the rear, and at the front of the mounting plate 3, a support shaft 4 is vertically provided, and at the rear, a swing motor is provided. 5 are attached. Therefore, the oscillating motor 5 is installed below the electric motor 1 and has no attached parts behind the electric motor 1. Further, the swinging motor 5 causes the output shaft 6 to project in a direction parallel to the support shaft 4 and in a direction opposite to the electric motor 1,
A crank plate 7 is fixed to the output shaft 6 by pins 8.

The support shaft 4 is inserted into a support hole 9a provided in a cylindrical bearing tube 9. Further, the bearing tube 9 is
The electric motor 1 is rotatably supported by a support 10 via a support shaft 4. The bearing cylinder 9 has a receiving portion 9b protruding laterally, and a connecting member 12 connects the hole 9c provided in the receiving portion 9b and the crank plate 7, and the connecting portions are rotatably connected respectively. ing.

A notch 11a is provided in the cylindrical portion 11 of the support 10 so that a receiving portion 9b protruding from the bearing tube 9 can be fitted therein. A front jacket 13 is attached to a front portion of the support frame 2 of the motor 1, and a rear jacket 14 is attached to the front jacket 13 to cover a rear portion and a swing mechanism of the motor 1.

The operation of the above configuration will be described below. First, when the motor 1 is energized, the blades (not shown) are rotated to generate cool air. Next, by energizing the swing motor 5 fixed below the electric motor 1, the crank plate 7 fixed to the output shaft 6 rotates, and
Performs a fan-shaped reciprocating motion around the hole 9c of the receiving portion 9b. Since the electric motor 1 is rotatably supported on the cylindrical portion 11 of the support 10 by the support shaft 4, the electric motor 1 is moved relative to the support 10 by the right and left necks with the fan-shaped reciprocating motion of the connecting member 12. Perform a swing motion.

At the time of assembling the oscillating device, first, the support shaft 4 is inserted into the support hole 9a of the bearing cylinder 9, and at the same time, the other end of the connecting member 12 having one end connected to the crank plate 7 and the hole of the receiving portion 9b. Unit 9c. Next, when the bearing tube 9 is inserted into the tube portion 11 of the support 10, the receiving portion 9 b of the bearing tube 9 is
The first notch 11a is fitted and mounted. Therefore bushing 9 is held substantially integrated with the support 10.

As shown in FIG. 3, the distance between the center of the support hole 9a and the center of the hole 9c of the bearing cylinder 9 can be reduced, and the connecting member 12 can be mounted close to the support shaft 4. Further, since the support hole 9a and the hole 9c are formed integrally with the bearing cylinder 9, the distance between the holes can be kept constant.

As described above, according to the first embodiment of the present invention, since the support shaft 4 and the oscillating motor 5 are both directly mounted on the mounting plate 3, dimensional errors during mounting are reduced, and the The deflection against the stress when swinging is also reduced,
Since the distance between the support shaft 4 and the oscillating motor 5 can be maintained accurately, the oscillating motion can be performed smoothly.

Further, since the output shaft 6 of the oscillating motor 5 and the support shaft 4 protrude in the same direction and the distance between the shafts is reduced, the size of the entire oscillating mechanism is reduced, and
Since the volume covered by the motor 4 is also reduced, the completed portion of the electric motor 1 including the swing mechanism can be reduced in thickness and size.

Further , the notch 11 is formed in the cylindrical portion 11 of the support 10.
By fitting the receiving portion 9b of the bearing tube 9 protruding into a, the bearing tube 9 is fixed substantially integrally to the support 10, so that a small gap between the tube portion 11 and the bearing tube 9 is eliminated. Since the gap between the support hole 9a and the hole 9c of the bearing cylinder 9 is kept constant, the cause of bending and deformation during the swing motion is reduced, and the swing motion can be made smooth.

Further, a notch 11a is provided in the cylindrical portion 11,
By projecting the receiving portion 9b integrally provided on the side of the bearing cylinder 9, the distance between the support hole 9a and the hole 9c can be reduced, and as shown in FIG. Even if the length of A1 is shortened to the length of A2, the length of the inter-support distance B1 can be shortened to B2 in proportion thereto, so that the size of the swing device can be reduced without changing the swing angle. be able to.

Next, a second embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

The same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and detailed description is omitted.

As shown, a connecting hole 12a is provided at one end of the connecting member 12, and the connecting portion is rotatably screwed to the eccentric portion 7a of the crank plate 7 with a stepped screw 15.

The other end of the connecting member 12 has a cylindrical projection 12b.
And a thick receiving portion 9b is protruded from the bearing cylinder 9, and the cylindrical protrusion 1 is formed in a hole 9c opened in the receiving portion 9b.
2b, the tip of the cylindrical projection 12b projects below the receiving part 9b, and the groove 12 provided at the tip of the cylindrical projection 12b.
An E-ring 16 is fitted into c to prevent it from falling off. Therefore, both ends of the connecting member 12 are rotatably supported at respective ends.

When fixing the connecting member 12 in the above configuration, first, the connecting hole 12a of the connecting member 12 is brought into close contact with the eccentric hole portion 7a of the crank plate 7, and is screwed and fixed with the mounting screw 15. Next, the support shaft 4 is inserted into the support hole 9 a of the bearing cylinder 9, and the cylindrical protrusion 12 b of
b, and inserts the E-ring 16 into the cylindrical projection 12b.
And the swing mechanism can be easily assembled as a stopper.

As described above, according to the second embodiment of the present invention,
By connecting a cylindrical projection 12b to one end of the connecting tool 12 at one end thereof, inserting the cylindrical projecting part 12b into a hole 9c having a large depth, and holding the receiving part 9b so that the rotational force is transmitted correctly, the connecting tool 1
The degree of freedom of the connecting part on the side of the 2 receiving part 9b is restricted only by the horizontal rotational movement, and only the rotational force is transmitted correctly without transmitting the unnecessary torsional force for the swing operation, and the swing movement is performed smoothly. Can be.

Since the space for mounting the bearing tube 9 to the receiving portion 9b is small, the workability when mounting the connecting member 12 to the receiving portion 9b becomes difficult. By inserting the protruding portion 12b into the hole 9c and fixing it with a E-ring from the lateral direction, the workability of assembly can be greatly improved.

[0036]

As is apparent from the above embodiment, according to the present invention, the support shaft and the oscillating motor are integrally mounted on the mounting plate fixed to the electric motor, and the oscillating motor is arranged below the electric motor. By projecting the output shaft of the swing motor in parallel with the support shaft and in the opposite direction of the motor, the motor part including the swing mechanism can be made thinner and smaller, and the blower part becomes thinner, which makes it easier to handle. This facilitates the formation of an external shape that matches the interior of the room, and also allows the spacing between the support shaft and the oscillating motor to be accurately maintained, so that the oscillating motion can be smooth.

Further, by fitting the projection provided on the bearing cylinder into the notch provided on the cylindrical portion of the support, the distance between the support shaft and the connection between the connection and the coupling in proportion to the size reduction of the connector. Can be reduced, the swinging motion can be performed at the same swing angle as before, the gap between the bearing cylinder and the cylindrical portion is eliminated, and the distance between the support hole and the hole of the bearing cylinder is reduced. Is maintained, the deflection and deformation of the swing mechanism are reduced, and the swing motion can be performed smoothly.

Further, a cylindrical projection is vertically provided at one end of the connecting tool,
By inserting a cylindrical protrusion into the hole with a large depth dimension provided in the receiving part of the bearing cylinder and holding it with a degree of freedom only in the turning direction, the crank plate and the connecting tool can change the movement direction. It is possible to suppress the generated torsional force and to achieve a smooth swinging motion, and to easily connect the bearing cylinder and the coupling tool by overcoming the difficulty of the assembling work caused by the reduction of the working space. it can.

[Brief description of the drawings]

FIG. 1 is a sectional view of a swinging device of a fan according to a first embodiment and a second embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 (a) is a plan view of the main part showing the connection of a conventional connector. (B) is a plan view of the main part showing the connection of the connector of the first embodiment of the present invention.

FIG. 4A is a diagram illustrating the operation of a conventional swinging device of a fan. FIG. 4B is a diagram illustrating the operation of the first embodiment of the present invention.

FIG. 5 is a perspective view of a conventional fan swing device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 motor 3 mounting plate 4 support shaft 5 oscillating motor 6 output shaft 7 crank plate 9 bearing tube 9b receiving portion 9c hole 10 support 11 cylinder 11a cutout 12 connector

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-85292 (JP, A) JP-A-59-190495 (JP, A) Jiko 2-29275 (JP, Y2) (58) Field (Int.Cl. ⁷ , DB name) F04D 25/10

Claims (2)

(57) [Claims] 1. An electric motor for driving a blade, an integral mounting plate provided on the electric motor, a support shaft suspended from the mounting plate, and a support for supporting the electric motor via the support shaft.
And a swing motor mounted on the mounting plate below the motor, and a swing motor protruding in a direction parallel to the support shaft and in a direction opposite to the motor.
A force shaft, a tubular portion provided in the support , a cutout provided in the tubular portion, a bearing tube inserted into the tubular portion, a receiving portion projecting from a side portion of the bearing tube, and a neck. A swinging motor, comprising: a crank plate provided on an output shaft of the swing motor; and a connecting tool for connecting the crank plate and the receiving portion, and a swinging motion of the electric fan having a receiving portion of the bearing tube inserted into a cutout portion of the cylindrical portion. apparatus. 2. A cylindrical projection is integrally formed at one end of the connecting member, a hole having a large depth is provided in a receiving portion of the bearing tube, and the cylindrical projecting portion of the connecting member is connected to a hole of the receiving portion. 2. The swinging device for an electric fan according to claim 1 , wherein the swinging device is rotatably supported by a shaft.