JP3231801U - Portable electric fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable electric fan capable of reliably protecting a blower blade in a housed state of the blower blade. SOLUTION: A housing, a blower main body 2 housed inside the housing and to which a blower blade 30 is attached, and a first state in which the blower main body 2 is housed inside the housing are moved to the outside of the housing. An operation unit 4 for shifting to the protruding second state is provided. The housing and the blower main body 2 have a box shape. It is provided with a torsion spring 53 for urging the blower main body 2 in the direction of the second state and a lock mechanism 5 for locking the blower main body 2 in the first state, and is locked by the operation of the operation unit 4. The lock of the mechanism 5 is released. [Selection diagram] Fig. 3

Description

The present invention relates to a portable electric fan that can be carried around.

Examples of such an electric fan include a portable handy type electric electric fan disclosed in Patent Document 1 below. This fan is equipped with a support rod, a pedestal, blades, and a front guard and a rear guard that guard the blades. It also has a hinge, and the upper part of the fan can rotate around the hinge. When the fan is used, the upper part of the fan and the support rod are aligned, and when not in use, the upper part of the fan is bent 180 ° to be in the accommodated state.

Patent No. 6683876

However, the portable fan is in a state where the blower blades are exposed to the outside in both the housed state and the used state, and is insufficient in terms of protecting the blades as a fan used for carrying.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a portable fan capable of reliably protecting the blower blades in a housed state of the blower blades.

In order to solve the above problems, the portable electric fan according to the present invention is
With the housing
The blower body, which is housed inside the housing and has blower blades attached,
The blower main body is provided with an operation unit for shifting from the first state housed inside the housing to the second state protruding outside the housing.

The operation and effect of the portable electric fan by such a configuration will be described. The blower main body to which the blower blades are attached can be housed inside the housing (first state). Therefore, when it is not used as a fan, it is housed in a compact shape and the blower blades are not exposed, so that it can be appropriately protected. When used as a fan, the operation unit may be operated to project the blower blades from the housing (second state). As a result, it is possible to provide a portable fan capable of reliably protecting the blower blade in the housed state of the blower blade.

In the present invention, it is preferable that the housing and the blower main body have a box shape. With such a configuration, it becomes easy to accommodate the blower main body inside the housing.

In the present invention, an urging member for urging the blower main body in the direction of the second state and
A lock mechanism for locking the blower body in the first state is provided.
It is preferable to release the lock mechanism by operating the operation unit.

With such a configuration, in the first state, the blower main body can be held inside the housing in a stable state. Further, by releasing the lock mechanism by the operation unit, the blower main body can be projected to the outside of the housing by the urging force of the urging member. As for the protruding mode at this time, the entire blower blade may be projected or a part thereof may be projected.

In the present invention, the urging force is set so as to project a part of the blower blade by the urging force of the urging member, and the entire blower blade can be projected by a manual operation. Is preferable.

If the entire blower blade is projected at once, the impact force or the like may cause damage to the housing or the like, or a problem may occur in terms of safety. Therefore, the above-mentioned problem can be solved by making the protrusion by the urging member halfway and manually operating the rest.

In the present invention, it is preferable that the housing and the blower main body are provided with a guide mechanism for guiding the movement of the blower main body from the first state to the second state.

As a result, the blower main body can be moved from the first state to the second state in a stable state.

In the present invention, an operation switch for turning on / off the rotation of the blower blade is provided on the blower main body, and the operation switch can be operated with the entire blower blade protruding. Is preferable.

As a result, it is possible to prevent the rotation operation of the blower blade while the blower blade is housed.

In the present invention, it is preferable that an opening for exposing the operation switch is formed on the side surface portion of the housing.

As a result, the operation switch can be operated when the entire blower blade is exposed, so that erroneous operation can be prevented.

It is preferable that the blower main body according to the present invention is provided with a blade guard portion for guarding the blow blade, a drive portion for driving the blow blade, and at least a part of the lock mechanism.

With such a configuration, at least a part of the blade guard portion, the drive portion for driving the blower blade, and the lock mechanism can be unitized.

In the present invention, it is preferable to provide a forced off switch for forcibly turning off the rotation of the blower blade and operate when the blower main body shifts from the second state to the first state.

With such a configuration, even if the blower main body is housed in the housing while the blower blades are rotating, the rotation can be forcibly turned off, and safety and the like can be ensured.

External perspective view of the portable electric fan according to the present embodiment as viewed from the front. External perspective view of the portable electric fan according to the present embodiment as viewed from the rear. Vertical cross-sectional view of a portable electric fan cut by a line passing through the vertical center of the operation unit. Vertical cross-sectional view showing immediately after moving the operation unit upward Vertical cross-sectional view showing a state in which a part of the blower body is projected after being unlocked. Vertical cross-sectional view showing the state in which the blower body is lifted to the position in use. AA sectional view of FIG. Longitudinal section cut by stopping the protrusion (contained state) Vertical cross-sectional view cut by stopping the protrusion (used state) Front view of the exterior showing a part of the blower body protruding External front view showing the state in which the blower body protrudes to the used state External side view showing the state in which the blower body protrudes to the used state

A preferred embodiment of the portable electric fan according to the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of the portable electric fan according to the present embodiment as viewed from the front. FIG. 2 is an external perspective view seen from the rear. Here, the term "forward" refers to the direction in which the wind from the blower comes out.

The portable electric fan has a housing 1 and a blower main body 2 housed inside the housing 1. The housing 1 and the blower body are box-shaped or rectangular parallelepiped, and the blower body 2 can be completely housed therein. A blower 3 is provided on the blower main body 2.

The housing 1 has a front wall portion 10, a right wall portion 11, a left wall portion 12, and a rear wall portion 13. The bottom surface has a bottom wall portion 14 (see FIG. 3), but the upper surface is formed with an opening so that the blower main body 2 can project. A first opening 15 and a second opening 16 are formed on the right wall portion. An operation unit 4 is provided below the left wall portion 12. The operation unit 4 is provided to shift the blower main body 2 housed in the housing 1 from the first state housed in the housing 1 to the second state protruding from the housing 1.

1 and 2 are the first state in which the blower main body 2 is housed, but FIGS. 10 and 11 are external views showing the second state in which the blower main body 2 protrudes to the outside of the housing 1. is there. FIG. 10 shows a state in which a part of the blower main body 2 protrudes, and FIG. 11 defines a state in which the blower main body 2 protrudes to the used state, both of which are in the second state.

FIG. 3 is a vertical cross-sectional view of the portable electric fan, which is a vertical cross-sectional view cut along a line passing through the vertical center of the operation unit 4. The operation unit 4 can be slid in the vertical direction. An inclined portion 40 is integrally formed on the operation portion 4.

At the lower part of the blower main body 2, a lock mechanism 5 for locking the blower main body 2 in the first state is provided. As shown in FIG. 3, the locking mechanism 5 includes a locking lever 50, a coil spring 51, and a locking portion 52. The locking lever 50 can slide and move in the left-right direction. A shaft portion 50a is formed on the locking lever 50, and a coil spring 51 is inserted into the shaft portion 50a. The right end of the coil spring 51 is supported by the spring receiver 54. The spring receiver 54 is formed on the blower main body 2. The locking lever 50 is urged to the left in FIG. 3 by the coil spring 51.

A locking claw 50b is integrally formed below the locking lever 50, and is in a state of being locked to the tip of the locking portion 52. The locking portion 52 is provided in the housing 1. A guide portion 22 is provided on the upper surface of the locking lever 50, and guide portions 20 and 21 are also provided on the lower surface. As a result, the movement of the locking lever 50 in the left-right direction is appropriately guided.

A torsion spring 53 (corresponding to an urging member) is provided below the lock mechanism 5 and below the blower body 2, and the entire blower body 2 is attached upward, that is, in the direction of the second state. It is gaining momentum. In the state of FIG. 3, since the blower main body 2 is locked to the lock mechanism 5, the blower main body 2 does not move, but the blower main body 2 can be moved upward by releasing the lock. Become.

A blower 3 is provided on the upper part of the blower main body 2. The blower 3 is provided with a blower blade 30 and a central portion 31. The blower blade 30 has seven blades, but the number and shape of the blades can be appropriately determined. FIG. 7 is a cross-sectional view taken along the line AA shown in FIG. 3, that is, a cross-sectional view taken along a horizontal line passing through the center of rotation of the blower 3. A drive motor 32 (corresponding to a drive unit for driving the blower blades 30) is provided in the center of the blower 3, and a shaft portion 33 provided in the central portion 31 is coupled to the drive motor 32. Although the drive circuit for driving the blower blade 30 and other control circuits are not shown, they are provided in the lower part of the blower main body 2.

A front guard 22 is provided on the front side of the blower 3, and a rear guard 23 is provided on the rear side (see FIG. 7). Further, a right guard 24 and a left guard 25 are also provided on the left and right sides. As shown in FIG. 1, an upper guard 26 is also provided. The front guard 22, the rear guard 23, the right guard 24, the left guard 25, and the upper guard 26 constitute a blade guard portion that guards the blower blade 30. The blade guard portion is also a part of the blower main body 2. The blade guard portion is adapted to be in contact with the inner wall surface of the housing 1 so that rattling does not occur when the blower main body 2 is moved up and down. The blower main body 2 also has a box shape or a rectangular parallelepiped shape like the housing 1.

As shown in FIG. 7, a concave groove 27 having a U-shaped cross section is formed on the rear side of the left and right guards 24 and 25. A protrusion 17 that fits into the concave groove 27 is formed in the housing 1. The concave groove 27 and the protrusion 15 form a guide mechanism for guiding the movement of the blower main body 2 between the first state and the second state. The protrusion 17 can be formed by bending the members (sheet metal) constituting the right wall portion 11, the left wall portion 12, and the rear wall portion 13 inward. Alternatively, the protrusion 17 may be made of a separate member.

In the present embodiment, the left and right ends of the sheet metal constituting the rear wall portion 13 are bent, and the line 28 is formed at a position where the right wall portion 11 and the left wall portion 12 are in contact with each other. The right wall portion 11 and the left wall portion 12 are also bent inward at the position of the line 28, and the above-mentioned protrusion 17 is formed.

<Operation method>
In order to use the portable electric fan, it is necessary to shift the blower main body 2 to the second state to expose the entire blower 3. Therefore, the operation unit 4 is operated to slide it upward. FIG. 3 shows a state in which the blower main body 2 is housed in the housing 1, and FIG. 4 is a cross-sectional view showing immediately after the operation unit 4 is moved upward. As a result, the inclined portion 40 formed in the operating portion 4 pushes the inclined portion 50c formed in the locking lever 5, and the locking lever 50 moves to the right against the urging force of the coil spring 51. As a result, the locked state of the locking lever 50 and the locking portion 52 is released.

As shown in FIG. 5, when the locked state by the lock mechanism 5 is released, the blower main body 2 moves in the direction of the second state due to the urging force of the torsion spring 53. As shown in FIG. 10, the upper part of the blower main body 2 is slightly projected from the upper surface of the housing 1. The end portion 53a of the torsion spring 53 is in contact with the reinforcing member 140 provided on the bottom wall portion 14. The blower main body 2 is not provided with an urging force that moves upward from the state shown in FIG.

In order to completely expose the entire blower 3 from the housing 1, it is necessary to lift the blower body 2 by hand from the state shown in FIG. 5 (FIG. 10). FIG. 6 is a vertical cross-sectional view showing a state in which the blower main body 2 is lifted by hand and can be used as the blower 3. 11 and 12 are external views (front view and side view) corresponding to the state of FIG. In this state, it can be used as an electric fan.

As shown in FIG. 12, when the blower main body 2 is lifted to the top, the operation switch 8 is exposed from the first opening 15. By pressing the operation switch 8 in this state, the blower 3 can be turned on and the blower blade 30 can be rotated. The wind power can be changed and the power can be turned off by the number of times the operation switch 8 is pressed. Since the operation switch 8 cannot be pressed unless the blower main body 2 is lifted to the used state, the operation switch 8 cannot be pressed when the blower 3 is housed or the entire blower 3 is not exposed. , It is possible to prevent erroneous operation.

A charging terminal 6 is provided at the bottom of the operation switch 8, and a battery provided inside the housing 1 can be charged by connecting a charging cord (not shown). The charging terminal 6 is exposed from the second opening 16 in a state where the blower main body 2 shown in FIG. 1 is housed, and can be charged. Further, even when the blower main body 2 is in use, it is exposed from the first opening 15 as shown in FIG. 12, and charging is possible even at this position.

8 and 9 show a vertical cross-sectional view cut at the center of the protrusion 17. Lock pins 70 are provided at the lower left and right sides of the blower main body 2, and are urged toward the inner wall surface of the housing 1 by a coil spring 71. The coil spring 71 and the lock pin 70 are housed in the pin accommodating portion 72. The pin accommodating portion 72 is provided in the blower main body 2. The protrusion 17 includes a first portion 170 having a low protrusion height, a second portion 171 having a high protrusion height, and a recess 172 located at the boundary between the first portion 170 and the second portion 71.

In the state shown in FIG. 8, the tip of the lock pin 70 is in contact with the tip of the first portion 170. When the blower body 2 moves upward, the tip of the lock pin 70 also moves while contacting the first portion 170, and when the tip of the lock pin 70 fits into the recess 172, the tip of the lock pin 70 moves upward of the blower body 2. Movement is blocked. As shown in FIG. 9, the second portion 171 acts as a stopper that prevents the lock pin 70 from moving further upward.

<Operation when accommodating>
Next, the operation when accommodating the blower main body 2 will be described. When accommodating, the blower main body 2 may be manually pushed into the housing 1 from the state shown in FIG. When pushed in, the engagement state between the lock pin 70 and the recess 172 is released. As a result, the blower main body 2 moves along the guide mechanism including the protrusion 17 and the recess 27. On the way, the engaging claw 50b of the locking lever 50 comes into contact with the inclined surface of the tip of the locking portion 52. As a result, the locking lever 50 moves to the right side of FIG. 3 against the urging force of the coil spring 51, and the engaging claw 50b gets over the tip of the locking portion 52, so that the locking mechanism 5 returns to the locked state. To do.

<About forced off switch>
As shown in FIG. 3, a forced off switch 9 is provided at the bottom of the blower main body 2, and the tip thereof is in contact with the contact portion 141 formed on the reinforcing member 140. When the forced off switch 9 is pressed by the contact portion 141, the blower blade 30 is turned off so as not to rotate. As shown in FIG. 6, the blower blade 30 can be rotated by pressing the operation switch 8 while the forced off switch 9 is separated from the contact portion 141.

When accommodating the blower main body 2, the operation switch 8 may be operated to turn off the blower 3 before accommodating, but the blower 3 may be accommodated without being turned off. Therefore, even if the blower main body 2 is accommodated without turning off the blower 3, the rotation of the blower blade 30 can be stopped by the action of the forced off switch 9, which is safe and the rechargeable battery is wasted. It is possible to avoid being exhausted.

<Another Embodiment>
In the present embodiment, the blower main body 2 is urged upward by the torsion spring 53 which is an urging member, but the urging member may not be provided. In that case, the blower main body 2 can be moved manually.

In the present embodiment, the operation unit 4 is a slide operation, but the operation unit 4 is not limited to this. For example, a configuration may be adopted in which the lock is released by a push button.

1 Housing 10 Front wall part 11 Right wall part 12 Left wall part 13 Rear wall part 14 Bottom wall part 140 Reinforcing member 141 Contact part 15 First opening 16 Second opening 17 Protrusion 170 First part 171 Second Part 172 Recess 2 Blower body 20, 21, 28 Guide part 27 Recess groove 3 Blower 4 Operation part 40 Inclined part 5 Lock mechanism 50 Locking lever 51 Coil spring 52 Locking part 53 Twisting spring 54 Spring receiver 170 First part 171 Second part 172 Recess 8 Operation switch 9 Forced off switch

Claims (9)

With the housing
The blower body, which is housed inside the housing and has blower blades attached,
A portable electric fan including an operation unit for shifting the blower main body from the first state housed inside the housing to the second state protruding outside the housing. The portable electric fan according to claim 1, wherein the housing and the blower main body have a box shape. An urging member for urging the blower body in the direction of the second state, and
A lock mechanism for locking the blower body in the first state is provided.
The portable electric fan according to claim 1 or 2, wherein the locking mechanism is released by operating the operation unit. The urging force is set so as to project a part of the blower blade by the urging force of the urging member, and the entire blower blade can be projected by a manual operation. The portable electric fan according to claim 3. Any of claims 1 to 4, wherein a guide mechanism for guiding the movement of the blower main body from the first state to the second state is provided in the housing and the blower main body. The portable electric fan according to item 1. An operation switch for turning on / off the rotation of the blower blade is provided on the blower main body, and the operation switch can be operated with the entire blower blade protruding. The portable electric fan according to any one of claims 1 to 5. The portable electric fan according to claim 6, wherein an opening for exposing the operation switch is formed on a side surface portion of the housing. The third aspect of the present invention is characterized in that the blower main body is provided with a blade guard portion for guarding the blow blade, a drive portion for driving the blow blade, and at least a part of the lock mechanism. The portable fan described. The first to eighth aspects of claim 1, wherein a forced off switch for forcibly turning off the rotation of the blower blade is provided, and the blower main body operates when the blower main body shifts from the second state to the first state. The portable electric fan according to any one item.

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