JPS63230993A - Electric fan - Google Patents

Abstract

PURPOSE:To change a blast range, by a method wherein a body base and a support body are rotatably mounted to ends across a casing body, and the casing body is reciprocatively rotated by means of a synchronous motor and a circular groove. CONSTITUTION:A body base 1 and a support body 16 are rotatably mounted to ends across a casing body 2. Through energization of a small synchronous motor 27, the casing body 2 is rotated. Where a stopper 5 is not inserted in a circular groove 31 of the body base 1, the casing body is reciprocatively rotated at an angle theta2 regulated by the circular groove 32. The stopper 25 is controlled by means of a knob 26, the stopper is inserted in the circular groove 31, and vibrating blast is effected in a range of an angle theta1 of the circular groove 31. This constitution enables regulation of a blast angle.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electric fan, and particularly to an electric fan using a cross-flow fan.

[Conventional technology]

Conventional electric fans can be used either vertically or horizontally.
Particularly in the vertical configuration, the air blowing area cannot be changed.

[Problem that the invention seeks to solve]

As mentioned above, there is only one type of usage, and it is not possible to obtain the air blowing range desired by the user.

The present invention focuses on the above, and aims to provide an electric fan that can be installed vertically or horizontally in any manner of use, and whose air blowing range can be easily changed.

[Means for solving problems]

The present invention has a main body base rotatably attached to one end of the casing main body, a support body rotatably attached to the other end of the casing main body, and an arcuate groove for regulating the air blowing range provided in the main body base. It is.

[Effect]

The main body base functions to support the electric fan vertically, the main body base and the support function to arrange the electric fan horizontally, and the arcuate groove acts to restrict the range of reciprocating rotation.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

As shown in particular detail in FIGS. 1 and 6, 1
The body base is made of synthetic resin and has enough area to support the entire fan. A fan casing main body 2 is rotatably mounted on a circular protrusion IA above the main body base 1, and as shown in the figure, the outer shape is a square prism with an opening at the rear. Reference numeral 3 designates a bottom plate of the casing body 2, on which the lower surface of the protrusion 4 projecting downward is slidably brought into contact with the surface of the circular protrusion IA. 5 is a skirt extending below the casing body 2.

6 is a motor base 7 formed by bending a steel plate on the bottom plate 3.
The rotor 9 of the cross-flow fan is attached to the shaft 8 that projects upward. Rotor 9 upper shaft 1
0 is rotatably attached to a steel plate bracket 12 attached to the upper plate 11 of the casing body 2 by a bearing 13. Reference numeral 14 denotes a mounting plate provided on the upper surface protrusion of the upper plate 11, and a support boss 15 is provided above. Reference numeral 16 denotes a support which is freely rotatable and prevented from being removed from the support boss 15 by screws 17. Note that this support body 16 can be removed by removing this screw 17. 18 is a cover that covers the upper part of the mounting plate 14. Reference numeral 19 denotes a nose which is screwed onto the casing body 2 and provides a blowing action to the cross-flow fan. 20 is a rear guard attached to the rear of the casing body 2 with screws, and has an intake grill 21. 22 is an exhaust grill provided on the front surface of the casing body 2. The nose 19 and rear guard 20 are attached to the casing body 2 as shown in FIG. 23 is an intake grill provided on the casing body 2.

24 is a timer for setting the operating time of the motor 6. 2
Reference numeral 5 denotes a knob 2 rotatably provided on the skirt 5 part.
The stopper with 6 is used to regulate the reciprocating rotation angle of the casing body 2.

This stopper 25 is attached to the casing body 2 with a predetermined frictional force sufficient to reverse a small synchronous motor to be described later. 27, a small synchronous motor wound with a single phase is hung from a stud 28 on the lower surface of the circular protrusion IA, and its output shaft 29 passes upward through the circular protrusion IA and is fixed to the bottom plate 3. has been done. The direction of rotation of this small synchronous motor 27 is not regulated, and when it is rotating in a predetermined direction, when five rotations are blocked, the rotation switches to the opposite direction, and this process is repeated thereafter. .

The main body base 1 has an arcuate groove 3 having an angle θ1 as shown in FIG.
1 is formed, and on the other hand, an arcuate groove 32 having an angle θ2 is provided in the circular protrusion IA.

Insertion or removal of the stopper 25 into the arcuate groove 31 is selected by operating the knob 26. Further, a headed bolt 33 is inserted into the other arcuate groove 32 from below, and its tip is fixed to the bottom plate 3 by screwing.

This bolt 33 restricts the reciprocating rotation angle of the casing body 2 to θ2, and also functions to keep the casing body 2 and the body base 1 continuous.

That is, when the electric fan is moved by holding the support 16 etc., the main body base 1 does not come off from the casing main body 2.

The electric fan of the present invention basically has a structure in which the casing main body 2 is simply placed on the main body base 1, so some means for connecting the two is required. However, in the structure of the present invention, the rotation angle is not restricted. Since the bolt 33 has this function, the number of parts can be reduced and the configuration can be simplified.

Further, as shown in FIG. 6, a rising mounting portion IB is formed on the rear side of the main body base 1, which is bent upward. On the other hand, the other support 16 also has a downwardly bent mounting portion 16A, and these mounting portions IB and 16
Screw holes are provided in each of A, and the electric fan of the present invention can be attached to a wall with screws in a horizontal or vertical position using these holes.

Next, the operation of the above configuration will be explained.

Now, when the motor 6 is energized by the timer 24, the rotor 9 rotates, air is sucked through the intake grilles 21 and 23, and is blown forward from the exhaust grill 22. At this time, if the small synchronous motor 27 is also energized, the casing body 2 will also rotate. Note that if the stopper 25 is not inserted into the arcuate groove 31 at this time, it will reciprocate at an angle θ2 regulated by the arcuate groove 32.

Therefore, the wind is oscillated forward in a range of 02 degrees.

Next, the stopper 25 is operated using the knob 26.

When inserted into the arcuate groove 31, air is oscillated within the range of the angle θl of the arcuate groove 31 regardless of the presence of the bolt 33.

The above is a vertical type of use, placed on the floor or mounted on a wall, as shown in FIG.

On the other hand, the electric fan of the present invention can also be used horizontally as shown in FIG.

In other words, if one side of the main body base 1 and the attachment part 16A of the support body 16 are placed on the floor, it can be used with a wide wind.

You can obtain wind whose direction of air changes up and down.

In this way, the electric fan can be used in any vertical or horizontal configuration according to the user's preference.

Note that the present invention has a configuration that can be used both vertically and horizontally, and the condition is that supports 16 and the like are rotatably provided at both ends of the casing main body 2, but the support on the motor 6 side is installed on the main body base with a large installation area. 1, and the other support body 16 is made sufficiently smaller than this, thereby improving design, stability, and weight reduction.

Also, since the mounting part IB of the main body base 1 is bent upward, it can also be used as a vertical stationary stand.

It is stable without getting in the way, and when placed horizontally,
Since this bent mounting part IB or 16A is brought into contact,
It is stable and will not damage the installation surface even if it is slid on the floor, tatami mats, or carpet.

〔Effect of the invention〕

According to the present invention, the user can select and use any horizontal or vertical usage form according to his/her wishes, and since the air blowing angle can also be regulated, it is possible to obtain air that suits the usage environment.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a vertical cross-sectional view of a vertically arranged form, and FIG. 2 is a perspective view of the external appearance.
3 is a sectional view of the fan casing portion, FIG. 4 is an external view of the horizontal arrangement, FIG. 5 is a plan view of the main body base, and FIG. 6 is an exploded perspective view of the vertical arrangement. 1...Body head, IB...Mounting part, 2...Casing body, 3...Bottom removal, 6...Motor, 9...
Rotor, 16... Support body, 16A... Mounting part, 25
River stopper, 27... Small synchronous motor, 31.32.
...Arc-shaped groove, 33...Bolt.

Claims (1)

[Claims] 1. A casing comprising a casing body (2), a rotor (9) for a cross-flow fan built in the casing body, and a motor (6) for rotating the rotor (9), wherein the casing comprises: A main body base is rotatably attached to one end of the main body (2), and a support (16) is also rotatably attached to the other end of the casing main body (2), and this casing main body is used as a small synchronous motor with no directionality. 1. An electric fan, characterized in that the electric fan is configured to rotate at a low speed and to cause this rotation to be reciprocated at a predetermined angle by means of an arcuate groove provided in the main body base.