JPS6385294A - Wall type fan - Google Patents

Abstract

PURPOSE:To prevent the collision of a protecting screen onto a wall and breakage of an oscillating device by stopping the oscillating device by turning OFF a switch installed onto a receiving part member when the receiving part member of the oscillating device which is installed in the lower part of the protecting screen of an electric fan at the angle less than a prescribed turning up and down angle. CONSTITUTION:A vane 3 is directly connected onto the rotary shaft 2 of an electric motor 1, and the front part of the electric motor 1 and the vane 3 are surrounded by a protecting screen 4. An oscillating device 8 into which an electric motor 6 for oscillation and a link mechanism are accommodated inside is installed at the lower edge of the protecting screen 4, and said oscillating device 8 is axially supported onto a receiving member 9 in the lower part by a rotary shaft 10. Further, the receiving member 9 is pivotally supported in free turning up and down around a vertically turning shaft 11 onto a base 12, and a switch 15 for ON/OFF-operating a contact point 14 by a pushing button 13 is installed inside the receiving member 9. The switch 15 is turned-OFF when the receiving member 9 is turned at the angle less than a prescribed turning up and down angle alpha around the vertically turning shaft 11, and the electric conduction of the electric motor 6 for oscillation is suspended.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wall fan that is used by being hung on a wall.

BACKGROUND OF THE INVENTION Conventionally, this type of wall-mounted electric fan has had a structure as shown in FIG. That is, the electric motor 101 has a rotating shaft 102, a blade 103 is directly connected to the rotating shaft 102, and the front part of the electric motor 101 and the blade 103 are surrounded by a protective net 104. The electric motor 101 is fixed and held by the protection net 104, and its rear part is covered with an outer cover 105. A swing motor 106 is installed inside the lower end of the protection net 104.
A swinging device 108 containing a link mechanism 107 is attached, and this swinging device 108 is pivotally supported by a lower receiving member 109 with a rotating shaft 11o. The receiving member 109 is pivoted on a base 112 so as to be able to move up and down about an elevation axis 111, and is further attached to a wall surface by a mounting device 113.

Problems to be Solved by the Invention In such a conventional configuration, since the distance between the wall surface and the protective net 104 is short, when the head swings 9 especially when the angle of elevation α is small, the protective net 104 may touch the wall. Contact and shaking device 108
There was a problem that the walls were damaged.

The present invention solves such conventional problems, and does not swing within a range smaller than the elevation angle α of the receiving member when the protection net is closest to the wall surface at the maximum swing angle, and the elevation angle is reduced. The object of the present invention is to provide a wall-mounted fan that swings only when the temperature exceeds a.

Means for Solving the Problems In order to achieve this object, the present invention provides a swinging device which is provided at the bottom of a protective net and has a built-in swinging motor, and an internal structure that rotatably supports the swinging device. The head of the oscillating device is provided with a receiving member having a switch for stopping the oscillating motor, a base on which the receiving member is pivoted so as to be vertically movable, and a mounting device for attaching this base to a wall surface. A mechanism is provided to close the stop switch when the receiving member is at an angle larger than the angle that the receiving member makes with the base when the protective net is closest to the wall surface when the swing angle is maximum. It is.

Function: With this configuration, when the swing angle is at its maximum and the angle of elevation of the receiving member is greater than or equal to the angle at which the protective net comes closest to the wall, the switch closes and swing begins; below that angle, the switch opens, You can stop shaking your head.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2.

As shown in the figure, the electric motor 1 has a rotating shaft 2.
A blade 3 is directly connected to the motor 1, and the front part of the motor 1 and the blade 3 are surrounded by a protective net 4. The electric motor 1Vi is fixedly held on the protective net 4, and its rear part is covered with a jacket 6. A swinging device 8 containing a swinging motor 6 and a link mechanism 7 is attached to the lower end of the protective net 4, and the swinging device 8 is supported by a rotating shaft 1o on a lower receiving member 9. ing.

The receiving member 9 is movable up and down on the base 12 about the up and down axis 11.
A switch 16 is provided inside the receiving member 9 to turn on and off the contacts 14 using a push button 13. The base 12 is attached to a wall by a mounting device 16. The electric motor 1 and the oscillating electric motor 6 are controlled by a switch 17. The switch 16 is set at an elevation angle α at which the receiving member 9 rotates around the elevation axis 11 and the protection net 4 does not come into contact with the wall when swinging.
It is set so that it turns on when the voltage is above that level, and turns off when it is below that level.

The operation of this embodiment configured as described above will be described below.

When the switch 17 is turned on, the electric motor 1 is energized, the blades 3 rotate, and the air is blown. Furthermore, when the receiving member 9 is rotated around the elevation axis 11 by an external force such as a person to make the elevation angle α or more, the pressure on the push button 13 is reduced, the switch 16 is turned on, the oscillating motor is energized, and the link mechanism 7 starts swinging around the rotating shaft 10.

Also, when the elevation angle is less than or equal to α, the push button 13 is pressed.

The switch 16 is turned off.

As described above, according to this embodiment, the push button 13 and the switch 16 are installed in the receiving member 9, and when the angle of depression and elevation of the receiving member 9 becomes smaller than the angle α, the oscillation is stopped by the action of the switch 16. , the protective net 4 can prevent damage to the wall and the swinging device 8.

In this embodiment, the electric motor 6 for swinging is controlled by the switch 15 and the pushbutton 13, but the switch 16 and the pushbutton 13 may also be used as limit switches, in short, they are turned on by sensing the specified angle of elevation and elevation.・Any switch mechanism that turns off is sufficient.

Effects of the Invention As explained in the above embodiments, according to the present invention, a switch is provided on the receiving member and the power to the oscillating motor is automatically stopped when the angle of elevation is small. It is possible to realize an excellent wall-mounted electric fan that has the effect of preventing injury or damage to the swinging device.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a wall fan according to an embodiment of the present invention, FIG. 2 is an electric circuit diagram of the wall fan, and FIG. 3 is a sectional view of a conventional wall fan. 4...Housing Mt4.3...Blade, 1...
Mountain/electric motor, 5... Outer cover, 6... Shaking motor, 8... Shaking device, 15...
Switch, 9...Receiving member, 12...Base, 16...Mounting device. Name of agent: Patent attorney Toshio Nakao and 1 other person f-
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Claims (1)

[Claims] A protection net for the electric motor, a swinging device provided at the bottom of the protection net containing a swinging motor, and a swinging device rotatably supported and having a switch for stopping the swinging motor inside. a receiving member, a base on which the receiving member is pivotally supported so as to be able to move up and down, and a mounting device for attaching the base to a wall surface, and when the swinging angle of the swinging device is at a maximum, the protection net is attached to the wall surface. A wall-mounted electric fan comprising a mechanism for closing the switch when the receiving member is at an angle larger than the angle formed with the base when the receiving member is closest to the base.