JPS61145396A - Ceiling fan - Google Patents

Abstract

PURPOSE:To promote reduction of size and weight of a ceiling fan and its cost down, by providing a wind direction control device, which simultaneously changes a tilt of a specific number of wind direction blades in a center direction or a peripheral direction, so as to variably direct air and enabling the direction of air to be spread in a wide range with no necessity for using a long fan blade. CONSTITUTION:A ceiling fan connects a specific number of wind direction blades 12, positioned in an air blow port 8 of an external frame 6 and symmetrically divided into four parts in the front surface of a fan blade 11, by rods 13 and 14 to be rotatably supported to the external frame 6. As the blade 11 rotates the fan attracts air from an air suction port 7 of the external frame 6 to be blown from an air blow port 8. Here the specific number of wind direction blades 12, being symmetrically divided laterally by the rods 13, 14, can be simultaneously tilted in a center or a peripheral direction. In this way, the ceiling fan, spreading the range of a wind direction further enabling the wind to be concentrated and diffused while a small sized blade and a small and light electric motor to be used, is easily mounted to the ceiling, further reducing the manufacturing cost.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ceiling fan equipped with a wind direction control device.

Prior Art A conventional ceiling fan has a configuration as shown in FIGS. 4 and 5. That is, in the figure, 2 is an outer frame housing an electric motor 1 having blades 3, which is suspended from a ceiling surface 5 by a pipe 4.Problems to be Solved by the InventionHowever, in such a configuration, the ceiling fan is Control was impossible, and the generally long blades 3 (approximately 753 to 140G) were used to blow air directly below the relatively wide blades as shown in a.

However, the wind speed was strong only directly below the blade 3, and in other parts, the wind speed was only relatively weak and wound toward the center of the blade 3. In addition, since the diameter of the blades 3 is large, the weight of the blades 3 is heavy, so the electric motor 1 needs to have a large rotating torque, and a large and heavy one must be used, which inevitably increases the weight of the ceiling fan. There are problems in that it becomes heavy, requires reinforcement work for the ceiling surface 6, and increases manufacturing cost.

In view of the above problems, it is an object of the present invention to provide a small and lightweight ceiling fan that can blow air over a wide area.

Means to Solve the Problem In order to solve this problem, the ceiling fan of the present invention includes an electric motor, blades rotated by the electric motor, an outer frame housing the electric motor and blades, and a ceiling fan located in front of the outer frame. It is composed of a large number of wind direction vanes that control the wind direction, and a wind direction control device that simultaneously changes the inclination of a specific number of wind direction devices toward the center or the outer circumference.

Function The above configuration allows the wind direction to be varied, making it possible to expand the wind direction over a wide range without using long blades.Since the small motor allows the use of short blades, it is small and lightweight, and can be mounted on the ceiling. To provide a ceiling fan that is easy to manufacture and is inexpensive to manufacture.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In Figures 1 to 3, reference numeral 6 denotes an outer frame that has an air suction lower on the side and an air outlet 8 on the bottom, an electric motor 9 inside, and a comparison of the total length of the rotating shaft 10 of this electric motor 9. A short blade 11 is attached. Reference numeral 12 denotes a wind direction device located at the air outlet 8 of the outer frame 6, which is symmetrically divided into four sections on the front surface of the blade 11. A specific number of symmetrical wind directions X12 are connected by rods 13 and rods 14, and the outer frame 6 It is rotatably supported on the shaft.

The operation of the above-mentioned configuration will be described. When the electric motor 9 rotates, the blades 11 rotate, and air is sucked in from the air suction port of the outer frame 6 and blown from the air outlet 8. At this time, a specific number of the wind direction tools 12 are symmetrically moved by the rods 13 and 14,
At the same time, the wind direction device 12 can be tilted toward the center or toward the outer circumference, so by changing the tilt of the wind direction device 12, the wind direction range can be freely selected from b to C″i! shown in FIG. Therefore, the range of wind direction can be expanded compared to conventional ceiling fans, and it is possible to concentrate and diffuse the air, and it is also possible to use small blades and a small and lightweight electric motor, making it easy to install on the ceiling. This has the effect of making it possible to provide a ceiling fan that can blow air over a wide area and is inexpensive to manufacture.

Effects of the Invention As described above, the ceiling fan of the present invention has a wind direction device arranged in front of the blade to control the wind direction toward the center or toward the periphery, so the range of wind direction is expanded, and the ceiling fan of the present invention has a small blade and a small and lightweight electric motor. This allows for easy ceiling installation and reduces manufacturing costs.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a ceiling fan that is an embodiment of the present invention;
FIG. 2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is a diagram showing the range of wind direction, FIG. 4 is a perspective view of a conventional ceiling fan, and FIG. 5 is a range of wind direction of a conventional ceiling fan. 6...Outer frame, 9...Electric motor, 12...
...Wind direction tool, 13.14...Rod. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Fig.

Claims (1)

[Claims] It has blades that are rotated by an electric motor, an outer frame that houses the blades and the electric motor, and a number of wind direction vanes that are located on the bottom surface of the outer frame and that control the wind surface. A ceiling fan equipped with a wind direction control device that changes direction toward the center or toward the outer periphery.