JPS587120Y2 - Fan - Google Patents

Description

[Detailed description of the invention] The present invention relates to an electric fan having a structure in which a horizontally long cylindrical main body case is detachably supported on a support part of a stand. To provide an electric fan which can always be supported in a normal state by preventing the support part from being accidentally inserted into an intake hole or an air blowing hole of a main body case.

An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a main body case in the shape of an oblong tube, which is separated from two plastic split cases 2 and 3 that can be separated in the radial direction, and has an engaging claw (not shown) protruding from one of the split cases. The split cases 2 and 3 are connected to each other by engaging with an engagement hole (not shown) formed in the other split case.

Reference numeral 4 designates a cross-flow fan as a blower fan disposed on the left side of the main body case 1 as shown in the figure, and 5 represents a driving motor for the cross-flow fan 4 arranged and fixed on the right side of the main body case 1 in the figure.

Reference numeral 6 denotes a plurality of intake holes formed in the upper left portion of the peripheral wall of the main body case 1 in the figure, and these are in the shape of long holes extending in the circumferential direction of the main body case 1.

Reference numeral 7 denotes a closing plate having a cross-section having a cross-sectional shape, which is provided by closing a relatively large opening 8 formed in the upper left portion of the peripheral wall of the main body case 1. A plurality of hole-shaped ventilation holes 9 are formed.

Reference numeral 10 denotes a support groove formed in the main body case 1, which is formed along the circumferential direction of the lower part of the outer peripheral surface of the part of the main body case 1 where the left and right weights are approximately balanced, for example, over approximately a semicircle. , both circumferential ends thereof are open.

The width dimension A of the support groove 10 is set larger than both the opening width dimension B of the intake hole 6 and the opening width dimension C of the ventilation hole 9.

Reference numeral 11 denotes a stand made of plastic, for example, which is made up of a base 12 and a support 13 integrally erected thereon. An arc-shaped support portion 14 for supporting the device 1 in a substantially horizontal state is integrally formed.

The surface of the receiving portion 14 that is in contact with the supporting groove 10, that is, the receiving surface 14a, which is the inner circumferential surface of the receiving portion 14, is formed to have a wider width than the width A of the supporting groove 10. It is set to be small and larger than both the opening width dimension B of the intake hole 6 and the opening width dimension C of the ventilation hole 9.

Thus, the main body case 1 is made horizontally elongated, and its support groove 10 is fitted into the support part 14 of the stand 11, so that the main body case 1 is supported on the stand 11 removably and rotatably in a substantially horizontal state. .

Then, when the switch 15 is turned on to energize the drive motor 5, the cross-flow fan 4 is driven to rotate, thereby sucking outside air through the intake hole 6 and blowing it out through the ventilation hole 9.

Now, in order to change the direction of air blowing, it is sufficient to rotate the main body case 1 clockwise and counterclockwise as shown in FIGS. Since the airflow direction changes, the air blowing direction can be changed to the vertical direction.

The electric fan in this embodiment has the above configuration, and the air intake hole 6, the air blow hole 9, and the support groove 10 are all connected to the main body case 1.
Since the peripheral wall of the main body case 1 is elongated,
When supporting the support part 14 of the stand 11, even if you accidentally try to fit the support part 14 into the intake hole 6 or the ventilation hole 9, the support part 14 of the support part 14 may Since the width dimension is set larger than the opening width dimension B of the intake hole 6 and the opening width dimension C of the ventilation hole 9, the receiver part 14 is not inserted into the intake hole 6 or the ventilation hole 9. .

Therefore, the user immediately notices the mistake and re-operates the support groove 10 to fit into the receiver part 14, so that the main body case 1 can always be supported in a normal state.

In addition, since the width of the face 14a of the receiver part 14 is set large, the area for receiving the main body case 1 is large.
Stability is improved and strength is also increased.

By the way, in order to prevent the insertion of the receiving part 14 into the intake hole 6 or the ventilation hole 9, the intake hole 6 and the ventilation hole 9 may be configured with, for example, a plurality of small holes. Of course, the small holes must be aligned with the flow direction of the wind (indicated by the arrow in Figure 4) when the cross-flow fan 4 rotates (if this is not done, the ventilation resistance will increase). This results in a decrease in air blowing performance.

), this is generally difficult and has disadvantages such as the difficulty of simultaneously forming small holes due to mold cutting, and is not suitable for practical use.

In the above embodiment, only the face 14a of the receiver portion 14 is made wide, but the entire thickness of the receiver portion 14 may be made thicker so that the face 14a of the receiver is made wider. .

As explained above, in the present invention, the width of at least the portion of the support of the stand in contact with the support groove is set to be smaller than the width of the support groove and larger than the opening width of the intake hole and the ventilation hole. By doing this, you can reliably prevent the stand's support part from being accidentally inserted into the intake hole or ventilation hole, and ensure that the main case is always supported correctly by fitting the support groove and the support part. In addition, since the area of the portion of the receiver that receives the main body case is increased, it is possible to stably support the main body case.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is a partially cutaway front view, and Figs. 3 and 4 are taken along line I-1 and I-1 in Fig. 2. FIG. 3 is an enlarged longitudinal cross-sectional view taken along line IV-IV. In the diagram, 1 is the main body case, 4 is the cross-flow fan (blow fan)
, 5 is a drive motor, 6 and 9 are intake holes and ventilation holes, 1
0 is a support groove, 11 is a stand, 14 is a receiving part, 14a
The reception is a side.

Claims (1)

[Scope of utility model registration request] A horizontally long cylindrical body case in which both an intake hole and a ventilation hole are formed in the shape of long holes on the peripheral wall, and a ventilation fan and a driving motor for this are arranged inside, and a support groove formed on the outer peripheral surface of this body case. and a stand having a support part that is fitted into the support groove to removably support the main body case, and the support of the stand has a width dimension of at least a portion of the part that contacts the support groove. An electric fan in which the width of the supporting groove is set smaller than the width of the supporting groove and larger than the opening width of the air intake hole and the air blowing hole.