JPS5820400B2 - Fan - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention enables horizontal oscillation, vertical oscillation, and curved trajectory oscillation to be switched and used.

Regarding electric fans.

Conventionally, as a fan that performs horizontal and vertical oscillations, vertical oscillations, and both oscillations at the same time on a curved trajectory, the Utility Model Publication No. 32-128
There is one disclosed in Publication No. 65.

The electric fan described in this publication has a left-right oscillation mechanism that engages with a worm formed on the rotating shaft of an electric motor, and a vertical oscillation mechanism, and both mechanisms are combinations of gears, joints, levers, and the like.

Therefore, the bidirectional oscillation mechanism becomes complicated, and the load on the electric motor becomes larger compared to an electric fan having only a left and right oscillation mechanism.

Furthermore, as the electric motor oscillates up and down, the distance from the motor support section changes, and therefore a special mechanism is required for the transmission part of the lateral oscillation mechanism.

The purpose of this invention is to reduce the load on the fan motor and provide a fan with a simple swing mechanism.

In view of the above-mentioned conventional drawbacks, and in order to achieve the above-mentioned object, the present invention includes a U-shaped m-arm pivoted on the upper surface of the neckpiece, a fan head pivoted between both ends of the arm, and a fan head placed in the recess of the neckpiece. A small motor is housed in the arm, the small motor swings the arm in the left and right direction with respect to the neckpiece, and a fan motor provided in the fan head moves the fan head into the arm. By rotating the oscillating mechanism in the vertical direction and oscillating the oscillator in the vertical direction, the lateral oscillating mechanism and the vertical oscillating mechanism are independently provided, thereby eliminating the influence of force between the two oscillating mechanisms. (This provides a fan that can swing smoothly.)

Referring to the diagram below, reference numeral 1 is a floor-type electric fan, in which a slide pipe 4 is vertically movably connected to a fixed support 3 protruding from a base 2, and a switch box 5 connected to the upper end of the pipe A neckpiece 6 is pivotally supported, and a fan head 8 is attached to the neckpiece via a U-shaped arm 7.

Thus, the U-shaped arm 7 extends from the center of its horizontal portion 9 to the pivot axis 1.
0 is installed vertically, and the pivot is connected to the upper recess 1 of the neck piece 6.
The arm is inserted into a cylindrical portion 12 protruding inside the fan head 8 to support the arm so as to be rotatable in the horizontal direction.
is pivotally supported between both ends of the U-shaped arm 70 via pins 13, 13 so as to be rotatable in the vertical direction.

Reference numeral 14 denotes a small motor housed in the recess 11 on the upper surface of the neck piece 6, which has a built-in reduction gear mechanism and whose output shaft 15
The crank 16 attached to the arm is connected to the horizontal part 9 of the arm by a connecting rod 1T.

FIG. 4 shows the neck piece 6 with the top cover plate removed.

Further, a fan motor 18 is housed in the fan head 8, and a fan 20 is attached to its rotating shaft 19. A clutch mechanism 21 is provided on the side of the fan motor, and a clutch mechanism 21 is provided on the output side of the clutch mechanism. A connecting rod 24 connects the crank 22 and the vertical portion 23 of the arm.

The clutch mechanism 21 can be engaged or disengaged by turning an operating knob 25 protruding from the front surface of the switch box 5, and by turning this operating knob, the switch for the small motor 14 can be engaged or disengaged. I have come to value this.

26 is Funmo. It is a push button that is important to switch 18.

In this configuration, when the push button 26 is pressed to energize the fan motor 18, the operating knob 25 is turned to engage the clutch mechanism 21, and the small motor 14 is turned off.

At the same time as the fan 20 is rotated by the fan motor 18, the rotational force of the fan motor 18 is transferred to the clutch mechanism 21.
The crank 22 is rotated through the fan head 8 as a result.
swings its head vertically.

Further turn the operating knob 25 to release the clutch mechanism 21°0.
At the same time as releasing the bond and stopping the crank rotation at 220,
When the small motor 14 is turned on and rotated, its crank 16 rotates and the fan head 8 swings in the horizontal direction.

When the operating knob 25 is further turned, the clutch mechanism 21 is engaged, and the small motor 14 is turned on, the two cranks 22 and 16 rotate at the same time, so that the fan head oscillates in the horizontal and vertical directions. Performs oscillation of the combined curved trajectory.

This curved trajectory becomes a perfect circle, an ellipse, etc. depending on the combination of the rotational speeds of the fan motor 18 and the small motor 14.

When the operating knob 25 is further turned to disengage the clutch mechanism 21 and switch off the small motor 14, the fan head 8 stops swinging and blows air in a fixed direction.As described above, the present invention , a fan motor 18 and a small motor 14 are used, one of which performs horizontal oscillation, and the other performs vertical oscillation, so by combining the two, the head of an elliptic isocurve trajectory can be adjusted. It can also be used in various ways depending on the size of the room and the number of people in the room, and it does not require excessive force to be applied to the connecting rod, unlike when using a single fan motor for elliptical head vibration. can be smoothed.

In addition, since the small motor 14 is housed in the neckpiece 6, which is naturally included in a general electric fan, there is no need to provide a special part for attaching the motor, and the appearance is not spoiled, making it practical. It is a dog of effectiveness.

[Brief explanation of the drawing]

Fig. 1 is a side view of the electric fan of the present invention, Fig. 2 is a longitudinal sectional front view of the fan head, Fig. 3 is a partially cutaway slope view of the fan head, and Fig. 4 is a partially cutaway slope view of the fan head.
The figure is a perspective view of the neckpiece portion. 6...Neckpiece, 7...Arm,
8...Fan head, 11...Top recess, 14...Small motor, 16...Crank, 18...Fan motor , 22...
-Crank, 17, 24...Connection rod, 21...
····clutch.

Claims (1)

[Claims] 1. A U-shaped arm pivotally supported on the upper surface of the neckpiece;
A fan head equipped with a fan motor pivotally supported between both ends of the arm, and a small motor that can be operated only while the fan motor is operating, which is housed in a recess on the upper side of the neck piece, and the small motor A connecting rod is connected between the crank and the arm, and the arm is oscillated independently with respect to the neck piece by stopping the small motor, and the crank provided through the fan motor and the clutch is connected between the arm and the arm. The independent oscillation of the fan head relative to the arm is performed by connecting the rod and engaging/disengaging the clutch, and the above-mentioned both oscillations are combined by simultaneously performing the operation of the front motor/type motor and the engaging/disengaging operation of the clutch. . An electric fan capable of oscillating along a curved orbit.