KR100373867B1 - An Electric Fan - Google Patents

Abstract

The efficiency of the fan assembly is improved by using a cushioning body in the ground.

The press-in part 26 which press-fits the cushion sieve 25 is formed in the outer peripheral part of the back side of the stand base part 11 which supports a blowing part, press-fits the cushion sieve 25 in the press-in part 26 temporarily, and fixes it temporarily with the base plate which is screwed. It was set as the structure which fixes the cushioning body 25 by pressing a part (recession part 25b) of the made cushioning body 25.

Description

Fan {An Electric Fan}

The present invention relates to a fan having a stand base portion.

In this type of fan, generally, the grounded part which is spaced apart and spaced apart is formed in the outer peripheral part of the back side of the stand base part formed from PP (polypropylene) resin etc. integrally.

By the way, in this case, when moving the electric fan installed in the installation surface, such as a tatamina flooring floor, when dragging and moving, the grounding part integrally molded with resin rubs against the installation surface, and flaws the Tatami surface or the flooring floor surface. There was this.

Therefore, by inserting the bottom plate fixing screw into the annular cushion body where the screw head can be buried and fastening it together with the bottom plate to the screw fixing point at the outer peripheral edge of the bottom plate of the stand base part, the ground part of the stand base part is formed into a cushion body. In addition, it has been used to prevent blemishes on tatami or flooring floors.

However, in such a conventional fan, when the product is assembled, the bottom plate fixing screw must be inserted into the annular cushioning body to screw the bottom plate. In general, the base plate of the stand base is screwed by an automatic machine, but in the above, the base of the cushion cannot be temporarily fixed to the base plate, and the base plate fixing screw must be inserted into the cushion body to fix the screw. Since the machine was not available, the efficiency of the product assembly work was very bad.

In addition, if the ground portion is formed of a cushioning body, it is possible to prevent flaws such as the tatami surface or the floor surface of the floor, but the stability of the fan with a high center of gravity is lowered.

Then, this invention is made | formed in order to solve such a subject, and an object of this invention is to aim at the improvement of the efficiency at the time of product assembly of a fan using a cushioning body to a ground part.

Moreover, it aims at providing the fan which is hard to fall even if a cushion sieve is used for a ground part.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the back side of the stand base part of the fan which concerns on one Embodiment of this invention, and shows the state before attaching a base plate.

2 is an enlarged view showing main parts after the bottom plate is mounted;

(a) is a bottom view, (b) is A-A sectional drawing.

3 shows the base plate;

Fig. 4 is a longitudinal sectional view of the main portion of the stand base, (a) is a longitudinal sectional view of the portion where the cushioning body and the auxiliary holding portion are installed, (b) is a longitudinal sectional view of the portion where the grounding portion is not provided, and (c) is only an auxiliary grounding portion. Longitudinal section view of the installed part.

Fig. 5 is a longitudinal sectional view showing the slide mechanism portion between the stand prop and the slide pipe in the embodiment.

6 is a half cross-sectional view showing the main portion of FIG.

7 is an overall configuration diagram of a fan to which the present invention is applied.

<Explanation of symbols for the main parts of the drawings>

1: fan body 11: stand base portion

12: stand holding part 13: slide pipe

17: blowing section 20: bottom plate

21: outer peripheral edge of the stand base

22: ring rib 23: boss for mounting the base plate

24: Cushion sieve mounting rib 25: Cushion sieve

25a: protrusion 25b: recess

26: indentation part 28: my running part

29: bottom plate fixing screw 30: auxiliary holding part

31: auxiliary ground portion 40: annular cover

44: end portion 45: annular groove

47: push button 48: point

49: hook portion 50: rotation lever

51: static load spring 51a: end of the static load spring

In order to achieve the object as described above, the present invention is a fan having a grounding portion by a cushioning body arranged to be spaced apart at the rear circumferential side of the stand base portion for supporting the blowing portion, the back side of the stand base portion The cushioning body is formed by forming a press-fitting part for press-fitting the cushioning body to an outer circumference part, press-fitting the cushioning body temporarily to the press-fitting part, and pressing a part of the temporary fixed cushioning body with the base plate fixed by screwing. It is characterized by the configuration to be fixed.

In addition, the press-fit portion is characterized in that formed on the outer side of the base plate mounting boss for screwing the outer peripheral edge of the base plate.

On the other hand, in the air blower which has a ground part by the cushion body arrange | positioned at the back space of the stand base part which supports a blower part, and spaced apart, the blower body is located between the cushioning bodies in the outer peripheral part of the back side of the stand base part, It is characterized in that an auxiliary ground portion having a shorter protruding length is formed.

Further, an auxiliary holding portion having a shorter protruding length than the cushioning body is formed in the outer peripheral portion on the back side of the stand base portion, corresponding to each of the cushioning bodies.

EMBODIMENT OF THE INVENTION Below, one Embodiment of this invention is described in detail with reference to drawings.

As shown in FIG. 7, the blower to which the present invention is applied is mounted on the stand base portion 11 of the fan main body 1 so as to be detachable, and the slide pipe 13 is lifted up and down on the stand support portion 12. The blowing section 17 inserted freely and covered with the guard 16 of the wing 15 driven by the motor 14 to be rotated by the motor 14 is mounted so as to be able to swing in the horizontal direction.

The stand base part 11 is made of PP (polypropylene) resin, and on the upper side thereof, a main body side operation panel 18 is provided on the front of the stand prop 12, and the remote control compartment 19 for storing the remote control 100 that can be remotely operated in front of it. Is formed.

1 is a view showing the back side of the stand base portion 11, showing the state before mounting the bottom plate 20 shown in Figure 3, Figure 2 is an enlarged view of the main part after mounting the bottom plate 20.

On the back side of the stand base part 11, the inner annular rib 22 of the outer periphery edge 21 of the stand base part 11 is formed, it is arrange | positioned at substantially equal intervals integrally with this annular rib 22, and the base plate 20 is screwed and fixed A plurality of base plate mounting bosses 23 (here, five places) are formed.

The outer side of the base plate mounting boss 23 is formed with a cushioning body mounting rib 24 extending in a trapezoidal shape from the annular rib 22 to the outer peripheral edge 21 of the stand base. Surrounded by these annular ribs 22, the base plate mounting boss 23, the cushion body mounting rib 24 and the stand base portion outer peripheral edge 21, a press-fitting portion 26 into which the cushion body 25 of the same shape is pressed is formed, as shown in FIG. The cushion sieve 25 is press fit and temporarily fixed.

The cushion body 25 of the present embodiment has a recessed portion corresponding to the endless portion 28 in which the elastomeric resin, which is a rubber-like elastic body, is provided with a projecting portion 25a formed outside the trapezoidal shape, and the mounting screw hole 27 of the base plate 20 is formed inside. 25b is formed. Therefore, when the bottom lid 20 is fixed with the screw 29 as shown in FIG. 2, the recessed part 25b of the cushioning body 25 is pushed by the inner end part 28 of the bottom board 20, and is fixed firmly.

Moreover, the outer side of the said cushioning body press-fit part 26, the auxiliary holding part 30 which is shorter than the protrusion part 25a of the cushion body 25 is formed in the outer peripheral edge 21 of a stand base part. Moreover, the auxiliary ground part 31 which is located in the substantially center part (an angle formed with each cushion body 25 is equal angle a.) Between each said cushioning body 25, and whose protrusion length is shorter than the protrusion part 25a of the cushioning body 25 is formed.

(A) is a longitudinal cross section of the part in which the said cushioning body 25 and the auxiliary holding part 30 were installed, (b) is a longitudinal cross section of the part in which the grounding part is not provided, and (c) is a part in which the auxiliary ground part 31 is provided. Is a longitudinal cross-sectional view of. As shown, the protruding portion 25a of the cushion body 25 is most protruded and grounded to the fan installation surface B, and the auxiliary holding portion 30 and the auxiliary grounding portion 31 formed integrally with the outer circumferential edge 21 of the stand base portion are (b) Although it protrudes below the lower end of the stand base part outer peripheral edge 21 shown in the figure, it is formed shorter than the protrusion part 25a of the cushioning body 25. Therefore, the auxiliary holding part 30 and the auxiliary grounding part 31 do not scratch the tatami surface, the flooring floor surface, or the like.

Since the cushion body 25 can be press-fitted into the press-fitting part 26 of the stand base part 11 by making it the above structure, it is possible to attach the cushion sieve 25 to the stand base part 11 beforehand, and in this state, the base plate 20 It can be screwed with an automatic machine, which improves product assembly efficiency.

Moreover, since the cushion sieve press-in part 26 is formed in the outer side of the base plate mounting boss 23 for screwing the outer peripheral edge of the base plate 20, the cushion body 25 in the vicinity is firmly fixed by the screw fixing of the base plate 20, too. can do.

In addition, by forming the auxiliary retaining portion 30 having a shorter protruding length than the cushioning body 25 on the outside of each cushioning body 25, the holding force of the cushioning body 25 can be improved, and at the same time, the tatami surface and the flooring floor surface of the auxiliary holding portion 30 Such a flaw can be prevented from occurring.

And by forming the auxiliary ground part 31 which is located in the substantially central part between each cushioning body 25 which is the direction which is the most inclined, and whose protrusion length is shorter than the cushioning body 25, even if the fan body 1 inclines in the direction without a cushioning body 25, the cushioning body 25 It is possible to prevent the auxiliary grounding portion 31 formed between the grounds from falling down.

In addition, in this embodiment, the slide mechanism part of the stand support part 12 and the slide pipe 13 is improved, and this is demonstrated using FIG. 5, FIG.

The stand support 12 and the slide pipe 13 of this embodiment attach an annular cover 40 having an inner diameter matched to the outer diameter of the slide pipe 13 to the upper opening of the stand support 12, and insert the slide pipe 13 thereon. Are assembled. Therefore, the stand holding part 12 and the slide pipe 13 can be assembled with the air blower 17 attached to the upper end of the slide pipe 13. As shown in FIG. 6, the annular cover 40 is formed so that the clasp 41 formed in the annular cover 40 is not caught by the protrusion 42 formed on the inner wall of the stand support 12, and the slide pipe 13 is not shown in FIG. 5. As described above, the elastic piece 43 formed on the lower side thereof is caught by the inner side of the annular cover 40 so as not to fall out.

And the upper end of the said stand support part 12 of this embodiment is shape | mold in the shape in which the end part which the end part 44 was formed in the outer shape was formed, and the upper end part of the stand support part 12 is fitted in the lower surface of the annular cover 40. An annular groove 45 is formed, and the upper end of the stand holding part 12 fits into the annular groove 45 of the annular cover 40. The stand support 12 is made of general ABS (acrylonitrile-butadiene-styrene) resin, whereas the annular cover 40 uses a molded product of POM (polyacetal) resin which is excellent in mechanical strength and wear resistance.

Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 9-264290 (F04D 25/08 306), a ring-shaped cover is fitted to fit inside the upper end of the stand support portion, to fill the gap between the stand support portion and the slide pipe. It was constructed, and the top of the stand prop was exposed. Therefore, when a lateral force is applied to the blowing section mounted on the upper end of the slide pipe, a gap is likely to occur between the upper end of the stand holding section and the annular cover.

On the other hand, in the thing of the said embodiment, the upper end of the stand holding part 12 is covered and hold | maintained by the annular cover 40 over the whole pole. Thereby, a force in a lateral direction is applied to the upper part than the slide pipe 13. Even if it loses, a gap does not arise between the upper end of the stand prop 12 and the annular cover 40. Moreover, since the electric pole is hold | maintained by the annular cover 40 at the upper end of the stand support part 12 which is easy to produce a crack etc., it becomes strong also in strength. Moreover, even if the gate (hot water ball) at the time of shaping | molding is provided in the upper end of the stand support part 12, there exists an advantage that a gate trace does not appear on the surface.

Further, the annular cover 40 is provided with a push button 47 that is exposed at the rear opening 46 of the annular cover 40 at one end thereof, and is biased toward the outer circumferential surface of the slide pipe 13 at the other end with the point 48 interposed therebetween. The rotation lever 50 in which the hook part 49 was formed is attached.

Moreover, the spring accommodating part 52 which accommodates the static load spring 51 wound by the winding shape is attached to the lower end of the slide pipe 13. The end portion 51a of the static load spring 51 is mounted on the rear side of the stand support 12, and wound in a spring shape 52 to be wound. The biasing force for pushing the hook portion 49 of the rotation lever 50 toward the slide pipe 13 is obtained by pushing the hook portion 49 of the static load spring 51 by pushing the hook portion 49 of the rotation lever 50 from the back side. The hook portion 49 is engaged with a recess (not shown) formed above the slide pipe 13 so that the slide pipe 13 is locked at that position.

Conventionally, as disclosed in Japanese Laid-Open Patent Publication No. 9-264290, in order to obtain the force of the rotation lever, the end portion of the static load spring is used in the same manner as in the present embodiment. The position is on the back side of the rotation lever, and is pushed down just below the point of the rotation lever at the spring end. Therefore, the lock becomes soft or the operation force increases, and the outer diameter of the stand holding portion also increases.

In contrast, in the embodiment of the present embodiment, since the hook portion 49 pushed by the end portion 51a of the static load spring 51 is close to the point of action (distant from the point), a certain locking effect can be obtained. Moreover, since the mounting position of the end part 51a of the static load spring 51 is below the rotation lever 50, compared with the said prior art which mounts on the back side of the rotation lever 50, since the mounting base does not need to be secured, the stand holding part 12 The outer diameter of the can be reduced, the slimmer of the stand holding part 12 and design advantages can be obtained.

As described above, according to the present invention, in the fan having a grounding portion by the cushioning body disposed by emptying the gap in the outer peripheral portion of the back of the stand base that supports the blower, the cushioning body is disposed on the outer peripheral portion of the back of the stand base. By forming a press-fitting part to press-fit, temporarily press-fit the cushioning body to the press-fitting part, and fix the cushioning body by pressing a part of the cushioning body temporarily fixed with the base plate to be screwed, so that the stand base part is The cushioning body is press-fitted into the press-fitting part to be temporarily fixed, and in this state, the base plate can be screwed by an automatic machine, thereby improving the efficiency in assembling the product.

Moreover, since the said press-fit part was formed in the outer side of the base plate mounting boss for screwing the outer peripheral edge of a base plate, the cushion body in the outside can be fixed firmly by screwing of a base plate.

On the other hand, by forming an auxiliary grounding portion located between each cushioning body and having a shorter protruding length than the cushioning body in the outer periphery of the back side of the stand base part, even if the fan is inclined in the direction without the cushioning body, which is the most inclined direction, the cushioning body is provided between the cushioning bodies. The auxiliary ground formed can be prevented from falling down by grounding.

Further, by forming an auxiliary holding portion having a shorter protruding length than the cushioning body in the outer peripheral portion on the back side of the stand base portion, the holding force can be improved without damaging the tatami surface or the flooring floor surface.

Claims (4)

In a fan having a grounding portion by a cushioning body disposed spaced apart from each other at the rear peripheral portion of the back side of the stand base portion supporting the blower, the outside of the bottom plate mounting portion and the stand to screw the bottom plate closing the back surface of the stand base portion. A cushioning body is formed between the outer periphery of the base part by press-fitting the cushioning body by press-fitting the cushioning body into the press-fitting part, and temporarily pressing a part of the temporary fixed cushioning body with a base plate fixed by screwing. An electric fan characterized in that the configuration to fix the. In a fan having a grounding portion by a cushioning body which is spaced apart from the rear surface side of the stand base portion supporting the blower, the projection body is located between the cushioning bodies at the rear surface side of the stand base portion and protrudes longer than the cushioning body. A fan, characterized in that to form a short auxiliary ground. The method of claim 2, And an auxiliary holding portion having a shorter protruding length than the cushioning body in correspondence with the respective cushioning bodies. delete