JPS5949393A - Fan - Google Patents

Abstract

PURPOSE:To allow the wind to reach to a wide range by applying nodding motions in both up-and-down and left-and-right directions to blades and a main motor rotating the blades. CONSTITUTION:The rotating speed of a motor 7 for nodding in left-and-right directions and with a reduction gear is set to a non-integer figure greater than 3 in relation to the rotating speed of a motor 6 for nodding in up-and-down directions and with a reduction gear. When the up-and-down nodding motor 6 is rotated by use of a transfer switch 17, a rotary shaft is rotated, the rotation is transmitted to a crank 12 to nod a support mount 3 in the up and down directions. When the transfer switch is turned to rotate the left-and-right nodding motor 7, the rotation is transmitted to a crank 14 to nod a nodding motor support mount 5 in the left and right directions around an arbor 10, and also a main motor 1 is nodded one rotation against one rotation of the up-and-down nodding motor 6. When both motors 6, 7 with a reduction gear are rotated, the sine curve at the wind center generates a phase difference in relation to each reciprocation of the left-and-right nodding and the wind center becomes an approximate sine curve.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an electric fan.

Structure of the conventional example and its problems As shown in Figures 1 and 2, in the conventional electric fan, the two-page oscillation was performed automatically only in the left and right directions, and the support was manually tilted in the up and down directions. However, it had the disadvantage that the wind could only reach a portion in the vertical direction.

Purpose of the Invention The present invention relates to an improvement on the above-mentioned conventional electric fan, in which an automatic swing in the vertical direction is added by a motor with a speed reducer, and the swing is performed in both left and right and up and down directions, thereby expanding the reach of the air. purpose.

Structure of the Invention The present invention comprises a motor with a reduction gear for vertical oscillation, a motor with a reduction gear for lateral oscillation, and a crank and a rod provided on the rotating shafts of the respective motors. The electric motor is made to oscillate in both the downward and left-right directions, thereby allowing the wind to reach a wide range.

Description of examples Examples thereof will be described below with reference to FIGS. 3 to 7.

In FIGS. 3 to 6, 1 is a main motor, and a propeller-type blade 2 is attached to its rotating shaft.

3, . . . 3 is a support stand attached to the front surface of the main motor 1, and is rotatably attached to the support arm 4. Reference numeral 6 denotes a oscillating motor holding stand, which holds a motor 6 with a reduction gear for vertical oscillation and a motor 7 with a reduction gear for lateral oscillation behind the main motor 1, and a core frame 8 below the main motor 1. A support arm 4 is fixed upwardly. Reference numeral 9 denotes a metal holder, in which the core frame 8 is rotatably supported in the left-right direction by a bearing portion 10, and is connected to a base 11. 1
A crank A 2 is fixed to the rotating shaft of a motor 6 with a reduction gear for vertical oscillation, and is connected to one end of the support base 3 by a rod A13. Reference numeral 14 denotes a crank B, which is fixed to the rotating shaft of the motor 7 with a speed reducer for lateral oscillation, and is connected to one end of the metal holder 9 by a rod B15.

16 is a main switch that controls the speed of the main motor 1 and opens and closes the power supply;
Opens and closes the power supply for the motor with a reduction gear for swinging. Reference numeral 17 is a circuit configured to allow each of the two oscillating motors 6.7 to oscillate independently or simultaneously using a changeover switch for the oscillating reduction gear motor 6.7. Furthermore, the number of rotations of the motor 7 with a reduction gear for lateral oscillation is configured to be two pairs (3 or more, but not an integer) of the number of rotations of the motor 6 with a reduction gear for vertical oscillation. ing.

In the above configuration, when the main switch 16 is turned on and the changeover switch 17 is set to rotate the vertical oscillation reduction gear motor 6, the rotation shaft of the vertical oscillation reduction gear motor 6 rotates. The rotation is transmitted to the crank AI2, which causes the support stand 3 connected to the rod A13 to oscillate in the vertical direction, so that the traction motor 1 supported on the support stand 3 is activated by a motor with a reducer for vertical oscillation. Shake the head once per rotation.

Similarly, when the main switch 16 is turned on and the changeover switch 17 is set to rotate the motor 7 with a reduction gear for lateral oscillation, the rotation of the motor 7 with a reduction gear for lateral oscillation is transmitted to the crank B14. , rod B15 is the receiving part 9
Since the oscillating motor holding base 5 is connected to the core frame 1
By shaking the head left and right around 0,
A main electric motor 5 /:---1 is attached to a support stand 3 supported by a support arm 4.
Perform a rotational swing.

When the motors 6 and 7 with both reducers are rotated, the center of the wind direction repeats an approximate sinusoidal curve within the reach of the wind, as shown in Figure 6. When the rotation speed of 7 is 2, the rotation speed of the motor 6 with a reduction gear for vertical oscillation is 3 or more and is not an integer, so
The sine curve at the center of the wind direction generates a phase difference for one round trip of the head in the left-right direction, and the approximate sine curve at the center of the wind direction advances until the number of times the head swings in the left-right direction is corrected to correct the phase difference.

Effects of the Invention According to the present invention, by appropriately selecting the rotation speed of the motor with a speed reducer for both swinging heads, the center of the wind direction can be spread over the reach of the wind, and strong winds can be directed straight to the flat direction unlike in the past. The great effect is that something similar to the natural wind that pervades the entire body, rather than just passing through the air, can originate.

In the above embodiment, the center of the wind direction is explained when the motor with both reducers rotates six times, but it is also possible to oscillate only left and right or only up and down depending on your preference, and the function of the electric fan is greatly improved by the present invention. can do.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a conventional example, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view of essential parts of an electric fan according to an embodiment of the present invention, and Fig. 4 is a view taken from the direction of the arrow in Fig. 3. 5 is an electrical wiring diagram of the same fan, 6 is a top view of the same, and 7 is a 6
It is a developed view of the locus of the center of the wind direction in the B-B cross section in the figure. 2...Blade, 3...Main motor, 6...
...Motor with reducer for vertical oscillation, 7...
・Motor with reducer for lateral oscillation, 11...Base, 12.14...Crank, 13,15...
····rod. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure @ 3 Figure 4 Figure 5

Claims (1)

[Claims] A blade, a main motor that rotationally drives the blade, a base that rotatably supports the blade and the main motor, a motor with a reducer for vertical swing, and a motor with a reducer for horizontal swing. , consisting of two sets of cranks and ronds that connect the rotational shafts of these motors and the base, and when the rotational shafts of the motors with dampers for both oscillations make one rotation - reciprocating oscillation is performed. and the rotation speed ratio of the motor is such that when the motor with a reducer for oscillating in the left and right direction is 2, the motor with a reducer for oscillating in the vertical direction is 3 or more, and is not an integer.