JPS59185893A - Fan - Google Patents

Abstract

PURPOSE:To enable variable wind having an expansible blowing range and unvarying wind to be easily selected by providing a rotary grill on one surface of a blowing path and a protective frame on the other surface to oscillate the whole head with an exclusive oscillating motor. CONSTITUTION:When a change-over switch 15 is turned down to one side, a blowing blade 6 blows wind to the grill 2 side. When a knob 3 is fastened under such a condition, the grill 2 is fixed to provide a directional wind. When the knob 3 is loosened, a wind is provided which has a wide range of wind intensity varying with the passage of time according to a deflecting blade 2a of the grill 2. When the change-over switch 15 is located on the other side, the rotation of the blowing blade 6 is reversed to blow an unvarying strong wind to the protective frame 8 side. Also, arms 10a, 10b can be rotated by the rotation of an oscillating exclusive motor 17 to effect oscillation of a fan.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an electric fan, and more particularly to an electric fan having a dihedral-waved air passage surface, which facilitates the selection of the air flow.

[Prior art]

In conventional electric fans, for example, those with front and rear protective frames configured radially with steel wire, the wind blown through the blades through the front protective frame has a constant strength in the radial direction. Although the airflow was obtained from the circumferential part, the spread of the wind was small, so although a left and right oscillation device was installed to expand the airflow area, the airflow range was still satisfactory. It wasn't.

On the other hand, in an electric fan with deflection blades, the wind obtained from the grill with the deflection blades is different from that described above.
Although the diameter of the air is partially expanded by side ventilation, the area of the air being blown is smaller than that of a fan without a fan, and when the grill is stopped, the effect is less. This means that the air can hardly be used and only a small area is blown.

As a result, the grille was rotated, and as a result, the airflow area was expanded by obtaining wind that varied over time, but the airflow area was still not satisfactory. It is something that

In addition, there was a fan that simply had a radial double-sided protective frame that allowed the electric motor to rotate in the forward and reverse directions. Instead, the same type of wind could be obtained on both sides.

[Purpose of the invention]

The present invention aims to provide an electric fan that can be used for multiple purposes and can obtain any desired wind, while also making the diffusion effect of the deflection blades effective even when stopped and rotating once, and further expanding the air blowing area. That is the purpose.

[Summary of the invention]

In the first aspect of the electric fan according to the present invention, a rotatable grill having a plurality of deflection blades is provided on one side of the air passage, and a radially formed protective frame is provided on the other side. In an electric fan, an electric motor is provided with a dedicated swinging motor, and the swinging motor rotates the air blowing blades.
Rakutou air blowing blade.

The head formed by the grille, protective frame, and their attachment frame can be swung.

Further, a similar configuration of the second invention is provided in an electric fan in which a rotatable grill having a plurality of deflection blades is provided on one side of the air passage, and a radially formed protective frame is provided on the other side. The rotating direction of the electric motor is changed forward or reverse by a switching means, so that the direction of air blowing from the air blowing blades fixed to the motor shaft can be changed back and forth.

It should be noted that in the present invention, the electric motor is rotated in the forward and reverse directions, and the air blowing road surface before and after the electric motor is
By installing a rotatable grille with a completely different shape, that is, a rotatable grille with deflection wings, on one side and a protective frame with a radial shape different from the grille on the other side, it is possible to obtain a completely different wind. The air flow can be selected arbitrarily depending on the purpose, and the air can be blown in the same direction from both sides, thereby improving usability.

[Embodiments of the invention]

An embodiment of the electric fan according to the present invention will be described with reference to each figure.

FIG. 1 is a front view of a fan and a craft machine according to embodiments of the present invention;
Fig. 2 is an enlarged side view of the same, Fig. 3 is an enlarged side view of its unfolded section, Fig. 4 is an exploded perspective view of its main parts, and Fig. 5 is a
FIG. 6 is an enlarged vertical cross-sectional view of the principal part of the oscillating head configuration, FIG. 7 is a partially cutaway perspective view of the top surface of the storage box, and FIG. 8 is a side view showing the tilted state of the head. , and FIG. 9 is an enlarged perspective view of the main parts showing the support structure of the mounting frame, and FIG. 9 is a schematic connection diagram of the changeover switch of the electric motor.

That is, 1 is an attachment frame, and a grille 2 having a plurality of deflection wings 2a is supported by a plurality of radial arms 1a of the attachment frame 1 on one side of the attachment frame 1, which is one side of the air passage. The electric motor 4 is rotatably supported via a support shaft 4a provided in a bearing portion 4b, and 1b
is its seating surface, IC, Id is 7-A10a, 1 described below.
Qb (7) Rotation support shaft.

3 is a knob, and by adjusting the tightening of this knob 3, the grill 26 can be rotated or stopped.

5 is a screw, and the screw 5 is connected to the bearing part 4b of the electric motor 4.
is fixed within the mounting frame 1 at the arms 1- and a, and the blower blade 6 is fixed to the shaft 4C of the electric motor 4 with a fastener 7.

Reference numeral 8 designates a protective frame in which a support ring 8b having a notch 8a is supported by a fastener 9 on the seat surface 1b, which is the other surface of the mounting frame 1, and is made of, for example, steel wire. It is constructed radially through the support ring 8b, and 8A is a decoration fixed to the protection frame 8.

Below-F, with mounting frame 1 as the reference, grille 2
．． Electric motor 4. Air blower blade 6. The protective frame 8 and the like constitute the head part A.

10a and 10b are arms that rotatably support the mounting frame 1 with respect to rotary support shafts 1c and 1d protruding from the left and right sides of the mounting frame 1, and as shown in FIGS. The rotational support of the mounting frame 1 and the arm 10a.

10b.

Therefore, the position of the rotation support shaft IC, ld is provided at a position that almost coincides with the position of the center of gravity of the above-mentioned head A.

Reference numeral 12 denotes a storage box located on the lower surface of the 7-m 10a, 10b, inside which are a speed adjustment switch 131 for the electric motor 4, a stop switch 14 for the oscillating electric motor 17. and a changeover switch 1 having Z and Y terminals for switching the rotation direction of the electric motor 4, as shown in the wiring diagram of FIG.
5, etc., and the rear opening 12a is configured to cover the lid 16 with a plurality of screws 16a.

Reference numeral 17 denotes a swing-only motor fixed above the storage box 12, which is a reversible motor that rotates in the opposite direction when a load is applied to the main shaft 17a.A rotating shaft 18° arm 10a is integrated with the main shaft 17a using a pin 19. It is something that exists.

20 is an adjustment knob having a support shaft 20a rotatably inserted into the lower part of the arm 10a, and a regulating plate 22 having a protrusion 22a is attached to the lower part of the support shaft 20a via a spring 21 in one body. It is fixedly supported by screws 23.

Further, 25 is a stopper piece provided on the upper surface 12b of the storage box 12 and having a plurality of pairs of steps 25a and 25a, 25b and 25b. In this case, the height of the top of the step 25a is the same as the top of the step 25b. is lower than the height of
It has an interlocking relationship with the protrusion 22a of the regulating plate 22.

Reference numeral 26 denotes a base that is inserted through the storage box 12 and the lid 16, and can be detachably attached to the storage box 12 with a reel and a fastener 27.

In addition, in FIG. 9, M is a main winding, and S is an auxiliary winding.

In the configuration described below, first, changeover switch 15 is
By tilting it toward the terminal Z side in the figure (of course, the speed adjustment switch 13 is also installed in a position where it rotates with a notch with an arbitrary rotation speed).
The electric motor 4 and the air blower blades 6 rotate to blow air to u.

As a result, the wind obtained from the grill 2 is
Due to the wind deflected by a and the tightening of knob 3,
Fix grill 2 to get directional wind, trench, knob 3
By loosening the grip and rotating the grill 2, it is possible to obtain wind over a wide range in which the strength of the wind changes over time.

Furthermore, by switching the speed adjustment switch 13,
The wind can be selected arbitrarily.

In this way, on the grill 2 side, especially the grill 2
It is possible to obtain varying winds by rotating the

Next, by positioning the changeover switch 15 to the terminal Y side, the rotation of the electric motor 4 and, by extension, the air blowing blade 6 is reversed, and air is blown toward the protection frame 8 side.

Since the structure of the protective frame 8 according to this embodiment is formed radially with respect to the center of the protective frame 8, the obtained wind is as follows.
It is possible to obtain strong winds that have an almost constant strength and do not change.

As described above, by selecting the changeover switch 15, it is possible to arbitrarily select variable wind or constant wind.

In the case of this embodiment, in addition to the above, since the head A is rotatable around the rotation support shafts IC and LD,
As shown in Figure 5, you can tilt the head back and forth without moving the fan itself, so you can move it in any direction you like.
This allows you to easily obtain the wind of your choice.

Furthermore, in order to expand the air blowing area over a wider area and to obtain further changes in the wind, by tilting or not tilting, the left or right side of the head The arms 10a and 10b are swung in the rightward direction by rotation of the main shaft 17a of the swing-dedicated electric motor 17.
It can be rotated to oscillate the head to blow air over a wide range. Then, by turning off the stop switch 14, the swinging will naturally stop.

Further, when the head is oscillated, the angle of the oscillation can be arbitrarily adjusted, and the method for doing so is as follows.

By rotating the adjustment knob 20 provided on the arm 10a, that is, the movable side, the protrusion 2 of the regulation plate 22 can be adjusted.
2a indicates a plurality of pairs of steps 25a and 25a provided on the upper surface 12b of the storage box 12.

It slides between 25b and 25b, and due to the collision, the electric motor 17 for oscillation is reversibly reversible, and the oscillation operation is performed, and the range of oscillation movement is regulated, so that an arbitrary angle can be obtained. It is something.

In addition, in the above-mentioned swinging motion, even if the head A is in the state shown in FIG.
Since it does not change with respect to It is designed to provide smooth, stable, and long-life operation.

Furthermore, since the base 26 is detachable using the fasteners 27, the base 26 can be easily attached and detached, making it possible to reduce the size of the packaging box for packaging, making it convenient to carry and store. It is also possible to achieve

As described above, according to this embodiment, in the electric fan, it is possible to easily select between a variable wind that expands the air blowing range and a constant wind without being affected by anything else. The ease of use can also be improved by allowing the device to be tilted in any direction.

In addition, as mentioned above, the variable wind can be extended over a wide range and the blowing area can be expanded, and furthermore, the change in the wind due to the swinging of the head is added, so that even more variable wind can be obtained.

Furthermore, even when the grill is stopped, the air blowing area in one direction is expanded, which further improves the usability of the fan, and allows for double-variable operation of rotating the grill and shaking the head. It is intended to produce a dog-like effect.

In addition to the above, the position of the center of gravity of the head is
Compared to a swing-only electric motor, it is possible to always obtain stable operation without eccentricity, and it can be expected to have a longer life and a simpler structure, and has extremely excellent practical advantages. It is something.

However, in the above embodiment, the electric motor is in the correct position.

This does not preclude the use of a configuration that only allows for reversal, or a configuration that only allows for oscillation.

In addition, including such a case, a configuration for tilting back and forth can be arbitrarily adopted.

〔Effect of the invention〕

According to the present invention, it is possible to provide an electric fan that can be used for multiple purposes, can obtain any desired wind, and can effectively maintain the diffusion effect of the deflection blades even when stopped and rotates once. This invention can be said to have excellent practical effects.

[Brief explanation of the drawing]

Fig. 1 is a front view of an electric fan according to an embodiment of the present invention, Fig. 2 is an enlarged side view thereof, Fig. 3 is an enlarged side view of its unfolded section, and Fig. 4 is an exploded view of its essential parts. FIG. 5 is a side view showing the inclined state of the head, FIG. 6 is an enlarged vertical cross-sectional view of the main part of the configuration, and FIG. 7 is a partially cutaway view of the upper surface of the storage box. FIG. 8 is an enlarged perspective view of essential parts showing the support structure of the mounting frame, and FIG. 9 is a schematic connection diagram of the changeover switch of the electric motor. 1...Mounting frame, 1a...Arm, 1b...
Seat surface, IC, ld...Rotation support shaft, 2...Grill,
2a... eccentric wing, 3... knob, 4... electric motor, 4
a...Support shaft, 4b...Bearing portion, 4C...Shaft, 5
...Screw, 6...Blower blade, 7...Tightening tool, 8
...Protection frame, 8a...Notch, 8b...Support ring fitting, 10a, 10b...Arm, 11...Screw, 12
...Storage box, 13...Speed adjustment switch, 14.
...Stop switch, 15...Selector switch, 16...
・Lid, 17... Electric motor for swinging, 17a... Main shaft, 18... Rotating shaft, 20... Adjustment knob, 20a...
・Support shaft, 22...Regulation plate, 22a...Protrusion, 25
・・・Stopper piece, 25 a l' 25 ri...
Step, 26... Base, 27... Fastener.・-1, -j (1 other person) Kaya 1 diagram Vδ diagram! Figure 9

Claims (1)

[Claims] 1. In an electric fan, a rotatable grill having a plurality of deflection blades is provided on one side of the air passage, and a radially formed protective frame is provided on the other side. A dedicated electric motor is provided, and the head formed by the electric motor for rotating the blower blades, the blower blades, the grill, the protective frame, and their attachment frame can be swung by the electric motor exclusively for swinging. An electric fan that is characterized by: 2. In the device described in claim 1, the head is configured to be able to tilt back and forth, and in any position in this tilted state, the head is An electric fan that is constructed so that the center of gravity remains unchanged. 3. In the item described in claim 1, the arm that rotatably supports the mounting frame is provided with respect to the plurality of pairs of steps provided on the top surface of the storage box that houses the oscillating electric motor. An electric fan that has a rotatable regulating plate that allows the range of swing movement to be adjusted. 4. In an electric fan in which a rotatable grill having a plurality of deflection blades is provided on one side of the air passage, and a radially formed protective frame is provided on the other side, the rotation direction of the electric motor can be adjusted by a switching means. An electric fan, characterized in that the electric fan is configured to be reversed to change the direction of air blowing from the air blower blades fixed to the motor shaft back and forth.