JP2000110786A - Electric fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable fan rotation to be easily noticeable by making a fan, which is rotatably driven by a motor located in an electric fan head portion, comprise a boss portion and a plurality of fan blades, made of a substantially transparent material, and providing embossed surfaces on the front surface of fan blades. SOLUTION: A fan 6 of an electric fan comprises a boss portion 9 provided with an insertion hole 8 in which a rotary shaft of a motor is inserted and a plurality of fan blades 10 that are radially formed on an outer periphery of the boss portion 9. An embossed surface A is formed on the front side of each of the fan blades 10, on its peripheral side except the very edges, concentrically with the boss portion 9. An embossed surface B, narrower than, and with a predetermined distance from, the embossed surface A, is formed on the side near the boss portion 9. When the fan 6 is stationary, the embossed surfaces A and B on the fan blades 10 are visible. When the fan is driven by the motor, embossed surfaces A and B form two respective rings as they look. This allows a stationary and rotating condition of the fan 6 to be visually discernible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan used for an electric fan.

[0002]

2. Description of the Related Art As a conventional fan for a fan, a fan made of a transparent material is often used.

However, since such a transparent fan is covered with a fine guard, it is difficult to distinguish between a stopped state and a rotating state depending on how light hits the fan. There was a case.

Therefore, when the infant is playing around the fan, the person who is protecting the infant stops the fan due to the light hitting the fan despite the fact that the fan is rotating. There is a case where it is erroneously recognized and left as it is.

[0005] In this case, when an infant who cannot determine the danger accidentally puts his hand in the guard body, there is a possibility that the infant may touch the rotating fan and get injured.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a fan capable of easily confirming a rotating state of a fan with a simple structure. .

[0007]

According to a first aspect of the present invention, there is provided a stand having a base and a column protruding above the base, and a motor supported above the column and having a motor. A fan head, a fan driven to rotate by the electric motor, and a guard body covering the fan, the fan comprising a boss portion and a plurality of fan blades formed radially from an outer periphery of the boss portion. And a substantially transparent material, and the fan blades on the front side are formed with an embossed surface except for edges.

[0008] A second means for solving the above problems is as follows.
A stand provided with a base and a column protruding above the base; a fan head supported above the column and having an electric motor; a fan rotationally driven by the electric motor; and a guard body covering the fan And the fan
It is composed of a boss part and a plurality of fan blades radially formed from the outer periphery of the boss part, and is formed of a substantially transparent material, and a textured surface is formed on the back side fan blade except for an edge. And

[0009] A third means for solving the above problems is as follows.
A stand provided with a base and a column protruding above the base; a fan head supported above the column and having an electric motor; a fan rotationally driven by the electric motor; and a guard body covering the fan And the fan
It consisted of a plurality of fan blades radially formed from the boss portion and the outer periphery of the boss portion, and was formed of a substantially transparent material, and the front and back fan blades were formed with a textured surface except for the edges. It is characterized by the following.

[0010] A fourth means for solving the above problems is as follows.
A stand provided with a base and a column protruding above the base; a fan head supported above the column and having an electric motor; a fan rotationally driven by the electric motor; and a guard body covering the fan And the fan
Consisting of a boss and a plurality of fan blades radially formed from the outer periphery of the boss, formed of a substantially transparent material, and having an embossed surface on the outer periphery of the front fan blade, excluding edges. It is characterized by.

A fifth means for solving the above-mentioned problem is as follows.
A stand having a base and a column protruding above the base; a fan head supported above the column and having an electric motor; a fan rotationally driven by the electric motor; and a guard body covering the fan. And the fan
Consisting of a boss and a plurality of fan blades radially formed from the outer periphery of the boss, formed of a substantially transparent material, and having a textured surface on the outer periphery of the back side of the fan blade, excluding edges. It is characterized by.

A sixth means for solving the above problems is as follows.
A stand provided with a base and a column protruding above the base; a fan head supported above the column and having an electric motor; a fan rotationally driven by the electric motor; and a guard body covering the fan And the fan
It is composed of a plurality of fan blades radially formed from the boss portion and the outer periphery of the boss portion, and is formed of a substantially transparent material, and the embossed surface except for the edge is formed on the outer peripheral side of the front and back fan blades. It is characterized by having been formed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described in detail below with reference to a fan 1 shown in FIGS.

Reference numeral 2 denotes a stand for the electric fan 1,
It comprises a support column 4 detachably mounted on the base 3, a slide pipe 5 slidably supported by the support column 4, and a neck piece (not shown) supported on the upper end of the slide pipe 5 so as to be able to raise and lower. . A fan head having an electric motor is supported on the neck piece so that the head can swing right and left. Reference numeral 6 denotes a substantially transparent resin fan removably mounted on the electric motor, and reference numeral 7 denotes a guard removably mounted on the fan head by covering the fan 6.

FIG. 2 is an enlarged view of the fan 6 according to the present embodiment. The fan 6 has a boss 9 having an insertion hole 8 into which a rotating shaft of an electric motor is inserted, and radially extends from the outer periphery of the boss 9. The fan blade 10 includes a plurality of fan blades 10 in this embodiment.

On the outer peripheral side of the front side of the fan blade 10, a textured surface A is formed concentrically with the boss 9 except for the edge.

As shown in FIG. 3, the textured surface A is a textured surface X for processing the inner surface of the mold 11 into an uneven surface, such as a glass-like, matte or sandpaper shape, which makes light bending different from other surfaces. The curved surface A of the fan 6 changes the bending of the light so that the surface A of the substantially transparent fan 6 looks like a polished glass. In the present embodiment, emboss processing X is performed by etching that corrodes the inner surface of the mold 11 with a chemical (nitric acid, ferric chloride, or CPL).
Has been given.

The grain surface B is formed narrower than the grain surface A at a distance from the grain surface A to the boss 9 side.

The textured surface A and the textured surface B are fan blades.
Although formed on the front side of 10, since the fan 6 is formed of a substantially transparent resin, the presence of the grained surface A and the grained surface B can be confirmed even when the fan 6 is viewed from the back side.

Thus, when the fan 6 is stopped, the textured surface A and the textured surface B of the fan blade 10 are visible. When the fan 6 is rotated by the electric motor, the grained surface A and the grained surface B rotate, so that the grained surface A and the grained surface B change into two ring patterns.

Therefore, when the fan 6 is stopped,
The state in which the fan 6 is rotating can be easily visually determined.

Further, since the textured surface A and the textured surface B are formed on the front side of the fan blade 10, the visibility when the fan 6 is viewed from the front side can be further improved.

Further, since a ring pattern appears on the outer peripheral side of the fan blade 10 to make the fan blade 10 look large, the visibility can be improved.

Furthermore, when the fan 6 is rotated, the wind is cut off at the edge of the fan blade 10 on the rotation direction side, so that dust and the like adhere to the vicinity of the edge, and a periodic wiping operation is required. Since the textured surface A and the textured surface B are formed in a range excluding the edge, dust or the like is prevented from entering the rough surface of the textured surface A or the textured surface B, thereby making it difficult to perform the wiping operation. .

Further, as shown in FIG.
When forming a textured surface up to the end edge, it is necessary to perform the textured Y on the part surface 12 of the mold 11 for molding the fan 6.

When the fan 6 is molded, the melted resin is poured from the boss 9 and pressure is applied to the fan blade to form the fan blade.
Since the resin is filled up to the ten edges, the high-temperature gas generated from the resin is pushed by the resin, temporarily accumulates in the vicinity of the part surface 12, and escapes from the gap between the part surfaces 12 to the outside air.

However, if the molding operation is performed for a long period of time, the surface of the mold 11 near the part surface 12 is corroded by the high-temperature gas, and the corrugated surface of the molded fan blade 10 shows a pattern of the corroded mold 11. Because of the failure, the corroded surface of the mold 11 needs to be polished again.

When the corroded surface of the mold 11 is polished again,
The depth of the texture Y in the vicinity becomes shallow and the fan blade 10
There is a risk that only the vicinity of the part surface 12 will have a textured surface that looks different, or if re-polishing is repeated, the textured surface will disappear and the appearance will change.

On the other hand, in the present application, since the crimped surface is not formed at the edge of the fan blade 10, the above-mentioned disadvantages can be solved.

FIG. 5 shows a second embodiment.
Although the embossed surface A and the embossed surface B are formed on the front side of the fan blade 10 in the embodiment, the embossed surface A ′ and the embossed surface B ′ are formed on the back side of the fan blade 10.

In the present embodiment, the same effects as those of the first embodiment are obtained, and the textured surface A ′ and the textured surface B ′ are provided on the back side of the fan blade 10. Visibility when viewed from the side can be further improved.

In the first embodiment, the fan blade 10
The surface A and the surface B are formed on the front side of the fan blade 10, and the surface A 'on the back side of the fan blade 10 in the second embodiment.
Although the textured surface B ′ is formed, the textured surface A and the textured surface A ′ and the textured surface B and the textured surface B ′ may be formed on both the front side and the back side of the fan blade 10.

With this configuration, the visibility of the stopped state of the fan 6 can be further improved when the fan is viewed from the front side or the back side.

Further, the surface A or the surface B may be formed on the front side of the fan blade 10, and the surface A 'or the surface B' may be formed on the back side. It has the same function and effect as

Further, in the first embodiment and the second embodiment, a textured surface is formed on all five fan blades 10, but a textured surface may be formed on an arbitrary number of fan blades 10. Often, this configuration has the same operation and effect as the above embodiment.

In the first and second embodiments, the embossed surface is formed at the same position of the five fan blades 10, but the embossed surface is formed at a different position of the five fan blades 10. A configuration in which a surface is formed may be employed, and this configuration has the same operation and effect as the above embodiment.

[0037]

According to the structure of the first aspect of the present invention, it is possible to easily visually discriminate the state where the fan is stopped and the state where the fan is rotating with a simple structure, Can be further improved when viewed from the front side.

Further, it is possible to prevent dust and the like from adhering to the grain surface which is difficult to clean, and to prevent a change in the grain surface due to the maintenance of the mold.

According to the configuration of the second aspect of the present invention, it is possible to easily visually determine whether the fan is stopped and whether the fan is rotating by a simple configuration. Visibility when viewed from the side can be further improved.

Further, it is possible to prevent dust and the like from adhering to the grain surface which is difficult to clean, and to prevent a change in the grain surface due to the maintenance of the mold.

According to the configuration of the third aspect of the present invention, it is possible to easily visually determine whether the fan is stopped and whether the fan is rotating by a simple configuration.

Further, it is possible to prevent dust and the like from adhering to the grained surface which is difficult to clean, and to prevent a change in the grained surface due to the maintenance of the mold.

According to the configuration of claim 4 of the present invention, it is possible to easily visually discriminate the stopped state of the fan and the rotating state of the fan with a simple structure, and to set the fan in front. Visibility when viewed from the side can be further improved.

Further, since the textured surface is formed on the outer peripheral side of the fan blade, the visibility of the fan blade can be improved by making the fan blade look large when the fan rotates.

In addition, it is possible to prevent dust and the like from adhering to the grained surface which is difficult to clean, and to prevent a change in the grained surface due to the maintenance of the mold.

According to the fifth aspect of the present invention, the state in which the fan is stopped and the state in which the fan is rotating can be easily visually determined with a simple configuration, and the fan can be easily mounted on the rear surface. Visibility when viewed from the side can be further improved.

Furthermore, since the grain is formed on the outer peripheral side of the fan blade, the visibility of the fan blade can be improved by making the fan blade look large when the fan rotates.

In addition, it is possible to prevent dust and the like from adhering to the grain surface that is difficult to clean, and to prevent a change in the grain surface due to the maintenance of the mold.

According to the configuration of claim 6 of the present invention, the state in which the fan is stopped and the state in which the fan is rotating can be easily visually determined with a simple configuration.

Further, since the grain is formed on the outer peripheral side of the fan blade, when the fan rotates, the fan blade looks large and the visibility can be improved.

Further, it is possible to prevent dust and the like from adhering to the grain surface which is difficult to clean, and to prevent a change in the grain surface due to the maintenance of the mold.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fan according to a first embodiment of the present invention.

FIG. 2 is an enlarged view of the fan.

FIG. 3 is an explanatory diagram of a mold for molding the fan.

FIG. 4 is an explanatory diagram of a mold for molding the fan.

FIG. 5 is an enlarged view of a fan according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fan 2 Stand 3 Base 4 Prop 5 Slide pipe 6 Fan 7 Guard 8 Insertion hole 9 Boss part 10 Fan blade A Surface B Surface

Continued on the front page (72) Inventor Koji Noguchi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3H033 AA02 AA14 BB02 BB08 CC01 DD02 DD04 DD26 EE16

Claims (6)

[Claims] A stand provided with a base and a column protruding above the base; and a stand supported above the column,
A fan head having an electric motor, a fan that is driven to rotate by the electric motor, and a guard body that covers the fan,
The fan comprises a plurality of fan blades formed radially from the boss portion and the outer periphery of the boss portion, and is formed of a substantially transparent material.
An electric fan characterized by forming a textured surface except for an edge. 2. A stand provided with a base and a column protruding above the base; and a stand supported above the column,
A fan head having an electric motor, a fan that is driven to rotate by the electric motor, and a guard body that covers the fan,
The fan is composed of a plurality of fan blades radially formed from the boss portion and the outer periphery of the boss portion, and is formed of a substantially transparent material.
An electric fan characterized by forming a textured surface except for an edge. 3. A stand provided with a base and a column protruding above the base; and a stand supported above the column,
A fan head having an electric motor, a fan that is driven to rotate by the electric motor, and a guard body that covers the fan,
The fan is composed of a boss portion and a plurality of fan blades formed radially from the outer periphery of the boss portion, and is formed of a substantially transparent material. An electric fan characterized by forming a surface. 4. A stand provided with a base and a column protruding above the base, supported above the column,
A fan head having an electric motor, a fan that is driven to rotate by the electric motor, and a guard body that covers the fan,
The fan is composed of a boss portion and a plurality of fan blades radially formed from the outer periphery of the boss portion, and is formed of a substantially transparent material. An electric fan characterized by forming. 5. A stand provided with a base and a column projecting above the base, and a stand supported above the column,
A fan head having an electric motor, a fan that is driven to rotate by the electric motor, and a guard body that covers the fan,
The fan is composed of a boss portion and a plurality of fan blades formed radially from the outer periphery of the boss portion, and is formed of a substantially transparent material. An electric fan characterized by forming. 6. A stand provided with a base and a column protruding above the base, supported on the column,
A fan head having an electric motor, a fan driven to rotate by the electric motor, and a guard body covering the fan,
The fan is composed of a boss portion and a plurality of fan blades formed radially from the outer periphery of the boss portion, and is formed of a substantially transparent material. A fan characterized by forming a textured surface.