JPS6233997Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a blower that blows air over a wide area by changing the direction of the wind using wind direction changing blades that are rotated by the wind pressure of the fan.

[Conventional technology]

Conventional blowers of this type are, for example,
As described in Publication No. 8954, a blower blade is rotatably installed below the fan, a friction plate is fixed to the lower surface of the blower, and both ends are fixed to a cam and a string hanging in a ring shape is used. The cam is rotated, and as the cam rotates, the brake plate, one end of which is fixed, is brought into pressure contact with the friction plate, and the rotation of the blower blades is adjusted by the pressure applied.

[Problem that the invention attempts to solve]

By the way, in the conventional blower, when adjusting the rotation of the expansion blade, the operation means is to pull the hanging string on the right or left side, rotate the cam, and bring the brake plate into contact with the friction plate. It is difficult to determine whether the strength is on the right or left side of the ring-shaped string, making it difficult to operate.

Further, the structure is complicated since it includes a holding means such as a cam for holding the brake plate in contact with the friction plate.

[Means for solving problems]

With the above points in mind, this invention clearly facilitates the operation of stopping and stopping the wind direction changing blades, and also simplifies the structure. a shaft provided below the shaft; a wind direction changing blade rotatably provided on the shaft and rotated by wind pressure in the air blowing direction of the fan; and an annular body attached to the lower surface of the center of the wind direction changing blade. a substantially dish-shaped spinner located below the ring body and fixed to the shaft; a vertically movable stop operation rod located below the ring body and supported by penetrating the spinner; The blower includes an actuating body that can freely move toward and away from the ring body fixed to the upper end of the stop operation rod, one of the ring body and the actuating body being made of an iron plate, and the other being a magnet.

[Effect]

Therefore, according to this invention, an annular ring is attached to the lower central surface of the wind direction changing blade, a vertically movable stop operation rod is provided below the ring, and a ring is attached to the upper end of the stop operation rod. Since the actuating body is fixed to the body so that it can move toward and away from the body, one of the ring body and the actuating body is made of iron, and the other is made of a magnet, when the stop operation rod is positioned downward,
When the wind direction change blade rotates and the stop operation rod is moved upward, the ring body and the operating body will stick together and the rotation of the wind direction change blade will stop. From this state, if you pull the stop operation rod downward, The wind direction changing blade rotates.

〔Example〕

Next, this invention will be explained in detail with reference to drawings showing one embodiment thereof.

The drawing shows a louver rotating ceiling fan, where 1 is an annular ceiling fan body suspended from the ceiling by several hanging fittings 2, 3 is a main body cover attached to the outside of the ceiling fan body 1, and 4 is a ceiling fan. Fan body 1 and body cover 3
These are two annular fluorescent lamps arranged one above the other in an annular space between them, and a plurality of leaf spring-shaped mounting brackets 5 move the upper fluorescent lamp 4 inward and the lower fluorescent lamp 4. The light lamp 4 is urged outward, and both fluorescent lamps 4 are attached. A guard 6 is attached to the upper surface of the ceiling fan main body 1 and forms an intake port into the ceiling fan main body 1.

7 is a covered cylindrical support that is supported by a radial support piece 8 at the center of the lower part of the ceiling fan main body 1 and is integrally provided with the main body 1; 9 is fixed to the upper surface of the support 7, with the rotating shaft 10 facing upward; The protruding motor 11 is a fan that is rotatably attached to the rotating shaft 10 of the motor 9 and rotated by the motor 9.

12 is a hollow shaft that is integrally formed in the center of a disc 13 that closes the lower surface of the support 7 and projects downward; 14 is a boss 15 at the center that is loosely fitted into the shaft 12 and is rotatably supported by the shaft 12; It is a circular wind direction changing blade made up of a plurality of blades 16, located below the fan 11 in the air blowing direction, and rotated by the wind pressure of the fan 11.

Reference numeral 17 denotes a substantially dish-shaped spinner which is screwed onto the lower end of the shaft 12 and prevents the wind direction changing blade 14 from coming off.

Reference numerals 18 and 19 denote a fluorescent lamp switch and a wind speed changeover switch mounted on the upper surface of the disc 13 and housed in the support 7, each consisting of a pull string switch, and the pull strings 20, 21 of each switch 18, 19. are respectively connected to the shaft 1 from within the support 7.
2 and is led out downward.

19' is the wind speed changeover switch 1 led out downward.
9, the shaft 19' passes through the disc 13, and its lower end is located to the left of the boss 15 of the wind direction changing blade 14, and this shaft 19' is rotated as the contact point is switched by the drawstring 21. 22 is an oval cam fixed to the end of the shaft 19'.

23 is a planar U-shaped braking spring whose base is screwed to the lower right side surface of the disc 13; a pair of spring pieces 24 abut against the boss 15 from both front and rear sides; contacts the cam 22 from both sides,
When both spring pieces 24 come into contact with the boss 15, a frictional force is generated, and the rotation of the wind direction changing blade 14 is braked.

Reference numeral 25 denotes an annular ring body made of a steel plate that is attached to the lower surface of the center of the wind direction changing blade 14, and is attached by bending and locking a locking claw 26 that is integrated with the ring body 25 to the central part of the wind direction changing blade 14. Ru.

Reference numeral 27 denotes a vertically movable stopping operation rod located below the ring body 25 which passes through and is supported on the left side of the spinner 17, and has a knob 28 fixed to its lower end. Reference numeral 29 denotes an actuating body which is fixed to the upper end of the stop operation rod 27 and can move toward and away from the ring body 25. The actuator 29 is made of a magnet, and when the stop operation rod 27 is at the lowest position, the ring body 25 of the actuator 29 It is placed in such a position that the adsorption force on it is less than its weight.

Next, the operation of the embodiment will be explained.

Now, when the motor 9 is driven to rotate the fan 11 with the operating body 29 at the lowest position, the wind pressure by the fan 11, that is, the fan 11
The wind direction change blade 14 is rotated by the twisted wind sent out by the rotation of the wind direction change blade 14, and the wind direction is changed to the wind direction change blade 14.
The wind changes as the engine rotates, and the wind is blown over a wide area.

At this time, the wind direction changing blade 14 attempts to rotate at high speed in synchronization with the rotation of the fan 11, but since both spring pieces 24 of the braking spring 23 are in contact with the boss 15 so as to sandwich the boss 15, the friction force Braking is applied, and the wind direction changing blade 14 is decelerated and rotated at a low speed.

Next, when the rotation of the wind direction changing blade 14 is to be stopped, the stop operation rod 27 is moved upward using the knob 28 to push up the actuating body 29, so that the actuating body 29 is attracted to the ring body 25. At this time, since the operating body 29 is supported by the spinner 17 via the stop operation rod 27, a large braking force is applied to the wind direction changing blade 14.
Stop.

In addition, in this state, the wind direction changing blade 14 is stopped only by the attraction of the operating body 29 and the ring body 25, so even if the wind direction changing blade 14 is manually rotated by any angle, the adsorption state of both will not change. The wind direction can be arbitrarily changed using the wind direction changing blades 14.

Next, when rotating the wind direction changing blade 14, the stop operation rod 27 is moved downward using the knob 28, and the actuating body 29 is disengaged from the ring body 25 and positioned at the lower position. rotates at low speed.

Therefore, according to the embodiment, the stopping mechanism of the wind direction changing blade 14 includes the ring body 25 attached to the wind direction changing blade 14 and made of a steel plate, the stopping operation rod 27 supported by the spinner 17, and the stopping mechanism of the wind direction changing blade 14. Since the operating body 29 is composed of a magnet at the upper end of the movable operating rod 27, the mechanism can be simplified, and since it is only necessary to move the operating body 29 up and down via the stationary operating rod 27, Operation can be simplified. Furthermore, when the wind direction changing blade 14 with the operating body 29 and the ring body 25 adsorbed is stopped, the wind direction changing blade 14 can be manually rotated by any angle, so that the wind direction can be easily adjusted.

Note that the ring body 25 may be made of a magnet, and the operating body 29 may be made of an iron plate.

[Effect of idea]

As described above, the blower of this invention has a circular ring body attached to the central lower surface of the wind direction change blade that rotates due to the wind pressure of the fan, and a stop operation located below the ring body that can freely move up and down. By making one side of the actuating body fixed to the upper end of the rod and movable toward and away from the ring body a steel plate and the other a magnet, the ring body and the actuating body are attracted to each other by simply moving the stop operation rod upward, and the wind direction can be adjusted. It is possible to stop the rotation of the wind direction changing blade, and when rotating the wind direction changing blade, it is only necessary to move the stop operation rod downward, and these operations are extremely easy.

Furthermore, since an iron plate and a magnet are used for the ring body and the actuating body, and only the adsorption action of the two is used, the structure is simple.

Furthermore, when the wind direction changing blade is stopped, only the magnet and the iron plate are attracted to each other, so the wind direction changing blade can be easily rotated by hand, and the wind direction can be freely adjusted.

[Brief explanation of drawings]

The drawings show one embodiment of the blower of this invention, with FIG. 1 being a cutaway front view, FIG. 2 being a partially cutaway bottom view, and FIG. 3 being an exploded perspective view. 9...Motor, 11...Fan, 12...Shaft, 14...Wind direction changing blade, 17...Spinner,
25...ring body, 27...stall operation rod, 29...operating body.

Claims (1)

[Scope of utility model registration request] A fan rotated by a motor, a shaft provided below the rotation axis of the fan, a wind direction changing blade rotatably provided on the shaft and rotated by wind pressure in the air blowing direction of the fan, and the wind direction changing blade. an annular ring mounted on the central lower surface of the ring, a substantially dish-shaped spinner located below the ring and fixed to the shaft, and a spinner located below the ring and penetrating through the spinner. The apparatus comprises a supported stop operation rod that can freely move up and down, and an operating body that can freely move toward and away from the ring body that is fixed to the upper end of the stop operation rod, and the iron plate is one of the ring body and the operation body. , the other end is a magnet.