JPH0328600B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a blower in which the head of the blower (an electric motor) is caused to vibrate by a vibrating motor device.

(b) Conventional technology Conventionally, as a blower that performs a head vibration operation using a head vibration motor device, Japanese Utility Model Publication No. 1560/1973 and Japanese Patent Publication No. 1560,
There are those described in Japanese Patent No. 57-34477 and US Pat. No. 2,618,434. In the former two Japanese publications, at least a part of the oscillating motor device is attached to the rear of the electric motor that drives the blower blades, and the length of the electric motor is large in the front-rear direction. The drawback was that it could not be made thinner.
In addition, the latter U.S. patent has an oscillating motor device attached to the bottom of the electric motor, and the longitudinal dimensions can be made as thin as the size of the electric motor, but the output shaft of the oscillating motor device protrudes downward. If the lower part of the motor becomes larger due to the lower part of the motor and the oscillating motor device is also covered with a cover, the distance between the oscillating movable part and the oscillating lever of the oscillating motor device should be kept from contacting the cover. Therefore, the main body of the blower became larger. Furthermore, in this U.S. patent, the output shaft of the oscillating motor device only protrudes downward, and the oscillating lever is rotatably attached to this output shaft. Since only the upper base end part is supported, a large force is applied to this mounting part when the head swings, which causes fluctuations in the rotation of the output shaft, making the rotation unstable, and therefore swinging smoothly. There is a drawback that it is no longer carried out.

(C) Problems to be Solved by the Invention The present invention aims at making the main body of the blower thinner in the front and back direction and downsizing the main body of the blower by attaching the oscillating motor device to the lower part of the electric motor, and at the same time ensuring the support of the oscillating motor device. The purpose of the present invention is to provide a blower that swings its head in a stable manner.

(d) Means for Solving the Problems The blower of the present invention includes a stand supported on a floor surface, a wall surface, etc., a neck piece supported by the stand, and an electric motor pivotally supported on the neck piece so as to be rotatable left and right. , a blower blade driven by the electric motor, a guard covering the blower blade, a swing motor device for driving the motor to swing, and a cover covering the electric motor and the swing motor device. forming a bearing on a mounting body attached to a lower part of the electric motor, and mounting a motor section of the oscillating motor device on the mounting body so that a tip end of an output shaft of the motor section is pivotally supported by the bearing; A movable part of the oscillating motor device including the output shaft, a cam body attached to the output shaft, and a oscillating link connected to the cam body is provided between the mounting body and the motor section. It is characterized by being arranged.

(E) Effect With the above configuration, the oscillating motor device is mounted on the lower part of the electric motor, and the output shaft of the oscillating motor device is pivotally supported at both ends on the motor side and the tip side,
Stable rotation of the output shaft is obtained, and stable oscillation is achieved.

(F) Embodiment The present invention will be described based on a first embodiment shown in FIGS. 1 to 7 and a second embodiment shown in FIG. 8.

A first example will be explained.

The blower is mounted on a stand 1 that is supported on the floor, wall, etc.
, a neck piece 2 supported on the stand 1 so as to be able to adjust the angle of elevation, an electric motor 3 that is pivotably supported on the neck piece 2 so as to be rotatable left and right, and a spinner 5 that can be attached and detached to the rotating shaft 4 of the electric motor 3. A blower blade 6 to be attached, a front cover 7 to be attached to the front part of the electric motor 3, a rear guard 9 to be attached to the front cover 7 with a nut body 8, and a front guard 9 to be attached to the rear guard 9. A guard 10, a cord holder 11 attached to the upper part of the electric motor 3, a mounting body 12 attached to the rear lower part of the electric motor 3, an oscillating motor device 13 attached to the attachment body 12, and a cord holder 11 attached to the upper part of the electric motor 3. It consists of a cup-shaped rear cover 14 that covers the oscillating motor device 13.

An L-shaped support 16 having a pivot shaft 15 hanging thereon is attached to the front lower part of the electric motor 3. The support 16
is fixed to the central flange 17 of the electric motor 3 with a screw 18, and is also fixed to the front surface of the electric motor 3 with a screw 19 at the same time as the front cover 7. A bearing hole 20 for pivotally supporting the pivot shaft 15 is formed in the neck piece 2, and in this embodiment, the pivot shaft 15 is inserted into and supported by the shaft support body 21. It is pivotally supported by the neck piece 2. The shaft support 21 is rotatable relative to the neck piece 2, and the spring body 22 housed in the neck piece 2
is pressed into contact with a locking portion formed on the shaft support 21, and is supported to prevent accidental rotation.

The mounting body 12 is formed by bending a sheet metal, and is attached to the motor 3 by fixing fixing pieces 23 and 24 formed at both ends to the flange 17 and rear surface of the motor 3 with screws 25 and 26. are doing. A recessed bearing portion 27 is formed in the center of the mounting body 12 . The oscillating motor device 13 includes a motor section 28 that integrates a motor 28a and a reduction gear section 28b, an output shaft 29 protruding from one surface thereof, and a sliding contact base forming member 30 mounted on one surface of the motor section 28. a cam body 31 attached to the output shaft 29;
1 and the output shaft 2
9, and a shaft support body 33 that is pivotally supported by the bearing portion 27. The output shaft 29 has a D-shaped cross section. A bearing portion 34 protrudes from the portion of the motor portion 28 where the output shaft 29 protrudes. The sliding contact base forming member 30 has the bearing portion 34
A through hole 35 is formed into which the holder is fitted. The motor section 28 and the sliding contact base forming member 30 are connected to mounting pieces 36 and 37.
At the same time, they are fixed to the projecting portion 12a of the mounting body 12 with screws 38. The cam body 31 is formed with a D-shaped insertion hole 39 that is attached to the output shaft 29, and moves eccentrically on the sliding contact base forming member 30 as the output shaft 29 rotates. The oscillating link 32 has a ring portion 3 that fits on the outer periphery of the cam body 31.
2a, one end of which is pivotally supported on the shaft support body 21. The shaft support body 33 has the same rotation center as the output shaft 29, and the output shaft 29 is supported at both ends by the bearing part 34 of the motor part 28 and the bearing part 27 of the mounting body 12. As a result, even if a large force is applied to the output shaft 29 due to the swing of the blower, this force is distributed and applied to the bearing part 34 of the motor part 28 and the bearing part 27 of the mounting body 12, so that the deflection is reduced. Therefore, the rotation of the output shaft 29 becomes smooth, and the oscillation is performed smoothly. Since the cam body 31 is closely supported by the mounting body 12, the oscillating link 32 and the cam body 31 will not come off from the output shaft 29. The oscillating link 32, cam body 31, output shaft 29, etc., which are movable parts of the oscillating motor device 13, are fixed parts, such as the motor section 28 and the electric motor 3.
It is interposed between the two, and is incorporated inside without going outside. The rear cover 14 is fixed to a support piece 40 formed rearward of the mounting body 12 with screws 41. Since there is no oscillating motor device 13 at the rear of the electric motor 3, the rear cover 14 can be made thinner in the front and rear direction, and further, the electric motor 3
Since there are no movable parts outside of the motor section 28, the rear cover 14 can be attached to the electric motor 3 and the motor section 2.
It can be reduced to a state where it is close to or in contact with 8. Therefore, the main body of the blower can be made thinner in the front-rear direction and the main body of the blower can be made smaller.

A second example will be explained.

In this embodiment, the support 16 on which the pivot shaft 15 of the first embodiment is vertically disposed and the mounting body 12 on which the oscillating motor device 13 is mounted are integrally formed, reducing the number of parts and improving ease of assembly. It will improve. Furthermore, the positional relationship between the pivot shaft 15 and the motor section 28 is also accurate.

In both of the above-mentioned corner embodiments, since the motor portion 28 is mounted at the lower rear portion of the electric motor 3, the length of the swinging link 32 can be formed to an appropriate dimension, allowing smooth swinging. In addition, the oscillating link 32 can be formed of a linear member, and the heights of both end supports can be positioned on the same plane.
In addition, since the output shaft 29 is supported at both ends by the bearing part 34 of the motor part 28 and the bearing part 27 of the mounting body 12, a large force is not applied to the output shaft 29 due to the swing of the blower itself. Even though this force is applied, the bearing part 34 of the motor part 28 and the mounting body 12
Since the output shaft 29 is applied to the bearing portion 27 in a distributed manner, rotation of the output shaft 29 without wobbling can be obtained, and therefore, the rotation of the output shaft 29 becomes smooth, and smooth swinging can be performed.

Furthermore, since there is no oscillating motor device 13 at the rear of the electric motor 3, the rear cover 14 can be made thinner in the front-rear direction.Furthermore, since there are no movable parts outside the electric motor 3 and the motor section 28, the rear cover 14 can be made thinner in the front-rear direction. The cover 14 can be made small enough to be close to or in contact with the electric motor 3 and the motor section 28, thereby making it possible to reduce the thickness of the main body of the blower in the front and back direction and the size of the main body of the blower.

(G) Effects of the Invention The blower of the present invention is constructed as described above, and in particular, since the oscillating motor device is attached to the lower part of the electric motor, the main body of the blower can be made thinner in the front and back direction and the main body of the blower can be made smaller. In addition, since the output shaft of the oscillating motor device is supported on both ends by the motor side and the tip side, even if a large force is exerted on the output shaft, this force is transferred between the motor side and the tip side. Since the rotation of the output shaft is dispersed, the rotation of the output shaft without wobbling can be obtained, and therefore, the rotation of the output shaft becomes smooth, resulting in effects such as smooth swinging.

[Brief explanation of drawings]

1 to 7 show a first embodiment of the present invention, and FIG. 8 shows a second embodiment. FIG. 1 is a side sectional view of the main part, and FIG. 2 is an enlarged sectional view of the main part. , FIG. 3 is a cross-sectional view of FIG. 2, FIG. 4 is a plan view of the oscillating motor device, FIG. 5 is a sectional view of the same side, FIG. 6 is an exploded perspective view including the mounting body, and FIG. The assembled side view and FIG. 8 are exploded perspective views similar to FIG. 6. 1... Stand, 2... Network piece, 3...
Electric motor, 12... Mounting body, 13... Oscillating motor device, 27... Bearing section, 29... Output shaft.

Claims (1)

[Claims] 1. A stand supported on a floor surface, wall surface, etc., a neck piece supported by the stand, an electric motor pivotally supported to the neck piece so as to be rotatable left and right, a blower blade driven by the electric motor, and a blower blade driven by the electric motor. A guard that covers the blade, a swing motor device that drives the motor to swing, and a cover that covers the motor and the swing motor device, and a bearing is formed in a mounting body that is attached to a lower part of the motor. The motor section of the oscillating motor device is attached to the mounting body so that the tip of the output shaft of the motor section is pivotally supported by the bearing, and the output shaft is placed between the mounting body and the motor section. and a movable part of the oscillating motor device including a cam body attached to the output shaft and a oscillating link connected to the cam body.