JP3048922U - Fan with adjustable swing angle - Google Patents

Abstract

(57) [Summary] [Problem] To enable a swing angle to be set within a range suitable for a user's purpose. SOLUTION: When a support 15 approaches a spiral gear 13,
That is, when approaching the center of the reduction gear 10, the diameter of the circumference of the operation of the support column 15 decreases, and the swing adjustment arm 1
The horizontal movement width of 6 also becomes smaller. Therefore, the swing angle of the fan is also reduced. Conversely, the adjusting table 14 is
When moving away from the center of zero, the diameter of the running circumference of the support post 15 increases, and the width of horizontal movement of the swing adjustment arm 16 also increases. Therefore, the swing angle of the fan is also increased. To adjust the swing angle, the swing adjustment shaft 4 is controlled by the swing adjustment arm 16, the helical gear 13 adjusts the helical gear shaft 12, and further, the position of the adjustment table 14 is moved, so that the center point of the reduction gear 10 is adjusted. This is done by changing the distance from The helical gear 13 is adjusted by moving the swing adjustment shaft 4.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a fan whose swing angle can be adjusted with a single swing adjustment arm. It adjusts the swing angle by changing the diameter of the circumference. The adjustable platform, which can be moved, makes it possible to change the distance from the center of the circumference. The magnitude of the distance is related to the swing angle, and the swing angle can be adjusted by adjusting the distance. In addition, there is a swing adjustment shaft with gears at the rear, which can be adjusted by screw screws. The graduated screw plate is used to adjust the angle, and at the same time, is used as a switch for the swing function.

[0002]

[Prior art]

 At present, the fans on the market are not limited to household and industrial use, and although the air volume can be changed, it is impossible to adjust because the swing angle is a constant horizontal movement. Recently, the number of fans that use a microcomputer to select the amount of wind and the desired wind in various ways is increasing. However, a fan that can adjust the swing angle has not yet been devised.

[0003]

[Problems to be solved by the invention]

 With the conventional method, regardless of the number of users and the size of the place, the swing angle is the same, and it is not possible to send wind in a range that suits the user's purpose, and the air volume in a narrow range I can not expect concentration.

The present invention has been made in view of the above points, and has as its object to provide a fan capable of adjusting a swing angle so that the swing angle can be set within a range suitable for a user's purpose. It is what it was.

[0005]

[Means for Solving the Problems]

 Therefore, the fan of the present invention, which can adjust the swing angle, is characterized in that the swing angle can be adjusted by one swing adjustment arm. It adjusts the swing angle by changing the diameter of the circumference. The movable base 14 allows the distance from the center of the circumference to be changed. The magnitude of the distance is related to the swing angle, and the swing angle can be adjusted by adjusting the distance. At the rear, there is a swing adjustment shaft 4 with gears, which can be adjusted by a screw 6. The graduated screw plate 5 is used to adjust the angle, and at the same time, serves as a switch for the swing function.

[0006]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1A is a side view of the fan of the present invention, and FIG. 1B is a view of the fan as viewed from below. As shown in FIGS. 1 (a) and 1 (b), the present invention relates to a fan center shaft 1, a blade 2, a motor 3, a box 18, a swing adjustment arm 16, a center shaft 17, a swing gear engagement groove 19, and a neck. It consists of parts such as a swing gear 20, a reduction gear 7, a reduction gear 8, a reduction gear 9, a reduction gear 10, a main shaft 21, a swing adjustment shaft 4 and a screw plate 5. The swing adjustment shaft 4 is integrated with the main shaft 21 of the reduction gears 7 to 10 and is also the central axis of the swing gear 20. Its head has a screw screw 6, which allows the swing angle to be adjusted manually. Further, the screw plate 5 connected to the main shaft 21 has a swing scale and also serves as a switch of the swing function. Note that the switch portion of the swing function is not related to the scope of the present invention, and thus the description thereof is omitted.

The swing angle adjusting function of the present invention is as follows. First, a helical gear shaft 12 is connected to a reduction gear 10 by supports 11 at both ends thereof, and an adjustment table 14 for adjusting a swing adjustment arm 16 is mounted on the helical gear shaft 12. Columns 15 are connected. The support 15 is a fulcrum of the swing adjustment arm 16. The fulcrum can be moved forward and backward by the swing adjusting shaft 4 provided with the screw 6 on the head, the helical gear 13 and the adjusting table 14. The center shaft 17 is a member (support shaft) for driving the swing adjusting arm 16 for causing the fan to swing. The motor 3 rotates circularly with respect to a center support point (a shaft 23 described later) on a fixed side (fixed portion), and the center shaft 17 is provided on the fixed side. Note that the center shaft 17 does not move and is a pivot point of the swing adjustment arm 16. The distance between the center point of the reduction gear 10 and the adjustment table 14 is adjusted by the helical gear shaft 12.

The shaft 23 is provided on the above-mentioned fixed side as a shaft for swinging the electric fan, and the motor 3 rotates around the shaft 23 as the center of the rotation circle. The shaft 23 is attached to a base (that is, a fixed side) of the fan with a bushing (bearing cylinder) for rotating the fan.

When the column 15 approaches the helical gear 13, that is, when the column 15 approaches the center of the reduction gear 10, the diameter of the running circumference of the column 15 becomes small, and the width of the horizontal movement of the swing adjusting arm 16 is reduced. Is also smaller. Therefore, the swing angle of the fan becomes smaller. Conversely, when the adjusting table 14 moves farther from the center of the reduction gear 10, the diameter of the circumference that the support column 15 operates increases, and the width of the horizontal movement of the swing adjustment arm 16 also increases. Therefore, the swing angle of the fan is also increased.

To adjust the swing angle, the swing adjustment shaft 4 is controlled by the swing adjustment arm 16, the helical gear 13 adjusts the helical gear shaft 12, and further, the position of the adjustment table 14 is moved to reduce the reduction gear. This is done by changing the distance from the center point of ten. The helical gear 13 is adjusted by moving the swing adjustment shaft 4. The graduated screw plate 5 is adjusted by a screw 6 connected to the swing adjusting shaft 4 so as to be convenient for adjusting the swing angle and range.

As described above, in the present invention, the swing angle is increased in a place where the number of people is large, and the swing angle is reduced in a place where the number of people is small or where people are concentrated at one place. The air volume can be concentrated. Therefore, the fan according to the present invention can be used without waste according to the purpose of the user.

The above embodiment is merely an embodiment of the present invention, and various other forms and modifications can be considered by applying this principle, but all of them are included in the scope of the present invention. is there.

[0013]

[Effect of the invention]

 According to the present invention, the swing angle of the fan can be adjusted arbitrarily.In places where the number of people is large, the swing angle is increased, and places where there are few people or people are concentrated in one place. In such cases, the swing angle can be reduced to concentrate the air volume. Therefore, the fan according to the present invention can be used without waste according to the purpose of the user. This has made it possible to produce a new electric fan with adjustable swing angle. The fan of the present invention has excellent features in terms of its function, practicality, and novelty, and provides a high-value commercialized device that meets the needs of the user.

[Brief description of the drawings]

FIG. 1A is a side view of a fan according to an embodiment of the present invention. (B) is the figure which looked at the electric fan of embodiment of this invention from the bottom.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fan central shaft 2 blades 3 Motor 4 Swing adjustment shaft 5 Screw plate 6 Screw screw 7 Reduction gear 8 Reduction gear 9 Reduction gear 10 Reduction gear 11 Support 12 Spiral gear shaft 13 Spiral gear 14 Adjustment table 15 Support 16 Swing adjustment arm 17 center shaft 18 box 19 swing gear meshing groove 20 swing gear 21 main shaft 23 shaft

Claims (6)

[Utility model registration claims] 1. A central axis (1) of a fan, a blade (2), a motor (3), a box (18), a swing adjustment arm (1).
6), swing angle center axis (23), swing gear meshing groove (19), swing gear (20), reduction gear (7)-
(10) Consisting of parts such as a main shaft (21), a swing adjustment shaft (4), and a screw (6), the swing adjustment arm (16) is moved by using the movement of a fan, and the operation circumference is adjusted. A fan capable of adjusting the swing angle, characterized in that the swing angle can be adjusted by adjusting the size of the diameter. 2. The fan according to claim 1, wherein a distance from a center of the circumference can be adjusted by a movable adjusting table. 3. A oscillating gear plate (20) with a gear at the end, adjustable by screw screws (6), and a graduated screw plate (5). 2. The electric fan according to claim 1, wherein a swing angle can be specified by the user. 4. A swing adjustment shaft (4) penetrating the center of the swing gear (20) controls the reduction gears (7) to (10), and a screw is provided at the top of the swing adjustment shaft (4). There is a screw (6), the swing angle can be adjusted manually, and another graduated screw plate (5)
2. The fan according to claim 1, wherein the fan can designate a swing angle and also serves as a switch of a swing function. 5. A support (11) attached to the reduction gear (10) of the swing adjustment arm (16), and an adjustment for controlling the swing adjustment arm (16) is provided on the helical gear shaft (12). There is a column (15) with a platform (14), which at the same time also serves as a fulcrum for the swing adjustment arm (16), with a swing adjustment shaft (4) with a screw screw (6) at the top and a spiral. 2. The gear according to claim 1, wherein the gear can move its fulcrum back and forth.
An electric fan whose swing angle can be adjusted. 6. The screw screw (6) adjusts the swing adjustment shaft (4), and the helical gear (13) controls the helical gear shaft (12) to move the adjustment table (14), and adjust its position. 2. The electric fan according to claim 1, wherein the distance from the center of the gear can be adjusted to change the swing angle.