JPH06330889A - Oscillating blower - Google Patents

Abstract

PURPOSE:To keep off any possible disconnection due to the turning of a feeder cord to be connected to a blower, in this blower which is turnably set up on a holding member. CONSTITUTION:A holding member 33 and a supporting member 25 supporting a blower are connected to each other by a shaft means 38 having a hollow part 40 and consisting of an inner ring 41 and an outer ring 43 rotatable with a ball bearing 39. In addition, a feeder cord 53 to be connected to a motor of the blower is set up in the hollow part 40 after being spirally curled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing structure of a blower with a swing device.

[0002]

2. Description of the Related Art FIG. 6 is a view showing a conventional head swing blower disclosed in, for example, Japanese Utility Model Publication No. 52-49768, in which reference numeral 1 is a main body mounting pillar, and a blower is provided via a support member 2 on the upper portion. 3 is attached. 4 is a fan motor support shaft,
It vertically extends downward from a swing mechanism portion 5 mounted in the support member 2 and is reciprocally swiveled in the left-right direction by the swing mechanism 5. Reference numeral 6 denotes a U-shaped fan motor mounting base that is suspended and fixed to the tip of the support shaft 4, and has a pair of through holes 7 and a circular arc groove 8 formed on both sides thereof. 9 is a mounting bolt, 10 is an adjustment bolt, 11 is a fan motor 1
Reference numeral 2 is a lead wire, 13 is a connection terminal box for wiring installed on the support member 2, and 14 is a fan.

The conventional swing head blower is constructed as described above, and the fan motor 12 is fitted to the mounting base 6 and the mounting bolt 9 is screwed into the exterior of the fan motor 12 through the through hole 7. The fan motor 12 is pivotally supported on the mounting base 6, and the depression angle can be adjusted by the adjusting bolt 10 screwed into the fan motor 12 from the arc groove 8.
Therefore, the wind direction of the fan 14 depends on the fan motor support shaft 4
And the fixed position of the adjusting bolt 10 in the arc groove 8, and thus, the fan motor support shaft 4 can be used as the apex to blow air in a semi-conical shape.

[0004]

In the conventional head swing fan as described above, the lead wire 11 of the fan motor 12 is always bent, and in particular, the load near the fixed portion (not shown) of the lead wire 11 is increased. There were problems such as a large break in the wire at an early stage and the possibility that the wire may be caught by another structure because it is exposed to the outside.

The present invention has been made to solve the above problems, and an object thereof is to obtain a swing head blower which prevents disconnection of a lead wire of a fan motor and prevents the fan motor from being caught by another structure. To do.

[0006]

A head swing fan according to the present invention includes a blade for blowing air, a motor for rotating the blade, a support member for supporting the motor, and a holding member for holding the support member. And a rotation means for pivotally rotating the motor, the support member and the holding member are rotatably connected by a hollow shaft means, and a power supply cord for supplying power to the motor is connected to the shaft means. Located in the hollow,
The power supply cord located in the hollow is formed in a spiral shape.

[0007]

According to the present invention, by increasing the number of windings of the power supply cord, the curl portion of the power supply cord located in the hollow is fed and pulled in in a curved manner in association with the swing of the head. The cord is hard to break.

[0008]

【Example】

Example 1. 1 to 5 are views showing a first embodiment of the present invention, in which reference numeral 20 is a pillar standing on the ground surface 21 and a blower, which will be described later, is attached to the uppermost part thereof. Reference numeral 22 is a blade that forms a part of the blower 23, and performs a blowing action by being rotated. 24 is a motor for rotating this blade, 25
Is a supporting member for supporting the motor, and is composed of a swivel mount 26 and a motor mount 27, and the swivel mount 26 has a substantially trapezoidal cross-sectional shape having an inclined portion 28 and a depression groove (not shown) on one side. Is a substantially U-shaped box body having a bottom plate 27a. Further, the motor mount 27 has a curved portion 27b on which the motor 24 is mounted and an adjustment groove 2 which is inserted into the depression groove.
9 is an L-shaped piece with a slide portion 27c formed therein, is attached to the swivel base 26 with a stop bolt A30, the angle is adjusted with a depression groove and an adjustment groove 29, and the position is set with a stop bolt B31. Fixed.

Reference numeral 32 denotes a drip-proof cover, which has a shape to cover the swivel base 26 from above and is provided with a plurality of screws 32a.
It is fixed at 6. Reference numeral 33 is a holding member having a cross section of the top plate 3.
It is composed of a fixed portion 36, which is substantially U-shaped having 4 and which is fitted to the pillar 20 on one side and fixed by a fixing bolt 35, and a rotating portion 37 to which a hollow shaft means described later is mounted. 38
Is a shaft means which is rotatably supported by a large ball bearing 39,
It is composed of an inner ring shaft 41 having a hollow portion 40, and an outer ring shaft 43 in which the inner ring shaft and the ball bearing 39 are provided and which is fixed to the rotating portion 37 by a bolt 42. The rotating unit 3
A hole communicating with the hollow portion 40 is formed in the top plate 34 of No. 7, and a flange 44 having a diameter larger than that of the outer ring shaft 43 is provided around the upper portion of the inner ring shaft 41. Reference numeral 45 is a rod fixing portion provided on the outer ring shaft 43, and a rod pin 46
One end of the crank is rod pin 46
The other end of the rod 48, which is continuously provided via, is fixed.

Reference numeral 49 denotes a swing motor mounting plate mounted on the flange 44, and a swing motor 50 located inside the swivel mount 26 is mounted on the other end. A crank 47 is connected to the output shaft 50a of the swing motor, and a hole (not shown) communicating with the hollow portion 40 is formed in the swing motor mounting plate 49. These swing motors 5
0, the crank 47, the rod 48, and the shaft means 38 constitute a rotating means capable of reciprocating the support member 25 to the left and right, that is, rotating the motor 24 in a swinging manner. 51
Is a breaker and is provided inside the holding member 33. 5
A terminal block 2 is mounted on the swivel base 26, and a power cord (not shown) to the motor 24 is connected thereto.

Reference numeral 53 is a power supply cord, one of which is the top plate 34.
After being fixed midway through the cord clip 54, the cord clip 54 is connected to the breaker 51, and the other is inserted into the hollow portion 40 of the inner ring shaft 41 while being curled in a spiral shape, and the cord clip 54 is inserted halfway. After being fixed to the swing motor mounting plate 49, it is connected to the terminal block 52. In this case, the curl portion of the power supply cord 53 is dimensioned so as not to come into contact with the inner wall surface of the inner ring shaft 41. FIG. 4 shows a situation where the power supply cord 53 is bent by swinging the motor 24, and FIG. It shows the situation where it is not bent. D1
Is the inner diameter of the curl portion when the power supply cord 53 is not bent, D2 is the inner diameter of the curl portion when it is also bent,
d is the outer diameter dimension of the power feeding cord 53, X is the position of the cord clip 54 when the power feeding cord 53 is not bent, and Y is the position when the power feeding cord 53 is bent.

When the code clip 54 is located at the Y point due to the swing of the motor 24, the inner diameter ratio of the curl portion is D1 as compared with when the code clip 54 is located at the X point.
> D2. Further, the dimensions of D1 and D2 are set to be 5 times or more the outer diameter d of the cord.

In the swing fan according to the first embodiment having the above-described structure, the breaker 51 causes the power supply cord 5 to move.
When the motor 24 is energized via
Is operated, the blades 21 are rotated, and the air blowing action starts. Further, the output shaft 50 is also supplied with electricity when the swing motor 50 is energized.
The rotational force of a is transmitted to the crank 47 and the rod 48, and the inner ring shaft 41 is also rotated in conjunction with the rotational movement of the crank 47, and the swinging reciprocating motion of the support member 25 is started left and right, and the air blown from the blades 21 over a wide range. Done. The blowing range, that is, the turning range of the support member 25 is about 90 ° around the inner ring shaft 41 by one rotation of the crank 47. At this time, the curled portion of the power feeding cord 53 in the hollow portion 40 performs the same operation as the operation of the torsion coil spring, and the position of the power feeding cord 53 near the tip of the cord clip 54 changes from the X point to the Y point. The inner diameter D2 of the curl portion becomes smaller.

As a result, the power supply cord 53 is connected to the inner ring shaft 41.
Since it is curled in the shape of a spiral, the burden on bending is reduced and the power supply cord 53 is not exposed to the outside. Further, the greater the number of turns and the ratio of D / d and D2 / d in the curled portion of the power feeding cord 53, the smaller the load applied to the power feeding cord 53 at the time of swinging. Further, the drip-proof cover 32 improves the maintenance and the drip-proof property against rainwater. Further, the shaft means 38
Since the swing motor 50 and the blower 23 are arranged so as to face each other, the product balance is improved and the turning is smooth. In addition, the power supply cord 53 is not exposed to the outside of the product, which improves the appearance.

Example 2. In the first embodiment, the power supply cord 5
Although 3 is arranged in the center of the inner ring shaft 41, a solid shaft (not shown) may be arranged inside the curled portion of the power supply cord 53, and the same effect as that of the first embodiment can be obtained. To be

[0016]

As described above, according to the present invention, a blade for blowing air, a motor for rotating the blade, a support member for supporting the motor, a holding member for holding the support member, and the motor are provided. Pivoting means for pivoting and swinging, the supporting member and the holding member are rotatably connected by a hollow shaft means, and a power supply cord for supplying power to the motor is located in the hollow of the shaft means. , By constructing the power supply cord located in this hollow in a spiral shape,
The load of bending on the power supply cord generated by the rotation of the support member is reduced, disconnection can be prevented, and the life of the product can be extended. Furthermore, since the power supply cord is not exposed to the outside of the product, it does not get caught on other structures.

[Brief description of drawings]

FIG. 1 is a mounting view showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing Embodiment 1 of the present invention.

FIG. 3 is a plan sectional view of a shaft means portion showing Embodiment 1 of the present invention.

FIG. 4 is a plan sectional view of a shaft means portion showing Embodiment 1 of the present invention.

FIG. 5 is a side sectional view of the shaft means portion showing the first embodiment of the present invention.

FIG. 6 is a mounting view showing a conventional swing fan.

[Explanation of symbols]

 22 blades 24 motor 25 support member 33 holding member 38 shaft means 40 hollow portion 53 power supply cord

Claims (1)

[Claims] 1. A blade for blowing air, a motor for rotating the blade, a supporting member for supporting the motor, a holding member for holding the supporting member, and a rotating means for pivotally rotating the motor. And a supporting member and a holding member are rotatably connected by a hollow shaft means, a power supply cord for supplying power to the motor is located in the hollow of the shaft means, and a power supply located in the hollow is provided. A swing fan with a spirally wound cord.