JP2004116494A - Electric fan - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric fan capable of reducing man-hour for assembling a stand portion 5. <P>SOLUTION: The stand portion 5 is provided with an upper surface plate equipped with a strut insertion recessed portion 35 in which a strut base portion 16 is fitted, and a male screw insertion hole 39 formed on a bottom surface of the strut insertion recessed portion 35 and in which a fixing male screw 31 is inserted; a base plate 19 applied from a lower side of the upper surface plate 18 and equipped with a female screw fixing hole 46 in which the fixing female screw 31 is inserted at that time; peripheral side hook grooves 42 provided on a peripheral side plate portion of the upper surface plate 18 at generally even intervals; and a plurality of recessed portion side engaging hooks 44 at an end portion of the male screw insertion hole 39. The stand portion is formed by a peripheral side engaging hooks 48 provided on a peripheral side plate portion of the base plate at generally even intervals, and hook engaging portions 36 made by providing a plurality of recessed portion side hook grooves 47 at an end portion of a male screw fixing hole 46. The hooks are engaged with each other, thus assembling the stand portion 5. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fan in which a support portion supporting a blade portion and a stand portion can be disassembled, and more particularly to a fan that facilitates assembly of the stand portion.
[0002]
[Prior art]
The electric fan has, as main components, a blade portion on which the blade rotates, a support portion supporting the blade portion, a stand portion supporting the support portion and preventing the support portion from falling down.
[0003]
Since such a fan is a seasonal product, it is stored and stored in winter or the like. However, since the stand is a thin box-shaped member, a dead space is formed between the fan and the column, and a large storage space is provided. Is required.
[0004]
However, it is difficult to secure a large storage space in general homes due to recent housing circumstances and the like, and in order to cope with such circumstances, a configuration has been proposed in which a stand portion and a column portion can be divided (Patent Documents). 1, 2).
[0005]
Such a stand portion is assembled by, for example, using two parts, a dish-shaped upper plate and a base plate, as a main part by screwing the upper part with a plurality of screws. It is adapted to be fixed.
[0006]
[Patent Document 1]
Japanese Patent Application Publication No. 3038692 [Patent Document 2]
Registered practical application No. 3036669
[Problems to be solved by the invention]
However, since the stand portion is assembled by screwing the upper plate and the base plate with a plurality of screws, there is a problem that the number of man-hours for screwing is increased.
[0008]
Therefore, an object of the present invention is to provide a fan capable of reducing the number of assembling steps of a stand.
[0009]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 includes a blade portion having a rotating blade, a column portion connected to the blade portion and supporting the blade portion, and a stand portion for detachably fixing the column portion. In the electric fan having the above, the stand portion is provided with an upper plate having a column insertion concave portion into which the column portion is inserted, a base plate addressed from below the upper plate, and a plurality of claw grooves provided in the upper plate or the base plate. The base plate or the top plate is provided with an engagement claw that engages with the claw groove. The claw groove has a claw engagement portion that engages the top plate and the base plate by engaging the claw groove. Thus, the stand section can be easily assembled.
[0010]
According to a second aspect of the present invention, the claw engaging portion includes a peripheral claw groove or a peripheral engaging claw provided on a peripheral side plate portion of the top plate, and a plurality of claw engaging portions provided at an end of the support column insertion concave portion. A plurality of recesses provided at the ends of the support insertion recesses, including a recess side engagement claw or a recess side claw groove, a peripheral side engagement claw or a periphery side claw groove provided on a peripheral side plate portion of the base plate. With a claw groove or male screw side engagement, the peripheral claw groove and the peripheral engagement claw engage, the concave side engagement claw and the concave side claw groove engage, and the upper surface plate and the base plate The stand portions can be easily assembled simply by pressing them against each other.
[0011]
According to a third aspect of the present invention, when the upper surface plate and the base plate are engaged with each other, the peripheral side plate portion of the upper surface plate and the peripheral side plate portion of the base plate come into contact with each other, and the peripheral side plate portion located inside at that time is moved outward. An annular rib is provided on the upper surface plate or the base plate corresponding to the peripheral side plate portion located on the outer side so as to be sandwiched between the peripheral side plate portions located on the peripheral side plate portion. It is characterized in that the engagement with the engaging claw or the like is not easily disengaged and reliability is enhanced.
[0012]
In the invention according to claim 4, the concave-side engaging claw and the concave-side claw groove are provided at symmetrical positions as viewed from the front position of the electric fan, thereby enabling efficient engagement while reducing the number of engaging portions. It is characterized by having done.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the appearance of a fan 1 according to the present invention, and FIG. 2 is an exploded view of the fan. Note that, for convenience of explanation, the direction of the arrow is described as the front side as shown in FIG.
[0014]
The electric fan 1 includes a blade 3 on which the blade 11 rotates, a support 4 supporting the blade 3, a stand 5 supporting the support 4 to prevent the fan 1 from falling, and a rotation speed of the blade 11. The control unit 6 for controlling the main components is a main component, and the case part in each of these components is formed of resin by injection molding.
[0015]
The blade portion 3 includes a blade 11, a motor (not shown) for rotating the blade 11, a blade cover for covering the blade 11, and the like.
[0016]
The strut portion 4 includes a strut 15 that is connected to the blade portion 3 to support the strut portion 3, a strut base 16 that forms the bottom of the strut 15, a strut bottom plate 17 that is screwed to the strut base 16, and the like. Have.
[0017]
The stand unit 5 includes a substantially round plate-shaped upper plate 18, a base plate 19 that engages with the upper plate 18 to form the bottom of the stand unit 5, and a fixing nut 20 that fixes the support unit 4 to the stand unit 5. ing.
[0018]
The control unit 6 is inserted into various switches 21 mounted on the front side of the support base 16 (hereinafter, this front side is appropriately referred to as an operation panel 23) and the boss 30 of the support bottom plate 17 to thereby support the support bottom plate. A control circuit board 22 and the like are fixed in the space between the support bottom plate 17 and the support base 16 by screwing the support 17 to the support base 16.
[0019]
3 is a rear view of the base plate 19 when the support 4 is fixed to the stand 5, and FIG. 4 is a sectional view taken along the line AA in FIG. 3, and FIG. 5 is a sectional view taken along the line BB in FIG. ing.
[0020]
6A and 6B are views showing the upper surface plate 18 of the stand unit 5, FIG. 6A is a rear view, and FIG. 6B is a cross-sectional view taken along the line CC in FIG. 6A. 7A and 7B are views showing the base plate 19 of the stand unit 5, FIG. 7A is a top view, and FIG. 7B is a cross-sectional view taken along the line DD in FIG. 7A.
[0021]
The support base 16 of the support 4 protrudes from the lower surface side of the operation panel 23 to which the switch 21 and the like are attached, and the support base side plate 24 and the operation panel provided appropriately inside from the peripheral end of the operation panel 23. A screw hole 25 (see FIG. 4) formed on the bottom surface side of the base 23, a support base protrusion 26 formed on the support base side plate 24 on the front side, a support base plate rib 27 formed on the support base side plate 24 on the side surface, etc. And is formed in a thin box shape.
[0022]
The support bottom plate 17 is a plate-like member formed in substantially the same shape as the support base 16, and includes a support bottom plate protrusion 28 provided in correspondence with the support base protrusion 26, a plurality of ribs 29, a plurality of bosses 30, and a rear surface side. The support bottom plate 17 has a fixing male screw 31 provided in a protruding manner, and the support bottom plate 17 is attached to the support base 16 by a plurality of screws 32.
[0023]
The ribs 29 are intended to reinforce the strength of the support bottom plate 17 and form an edge into which the support base side plate 24 is inserted, so that positioning can be performed when the support bottom plate 17 is addressed to the support base 16. .
[0024]
A part of the boss 30 has a through hole through which a screw 32 is inserted. The top of the boss 30 is provided so as to abut the support base 16. When the support bottom plate 17 is fixed to the support base 16 by the screw 32, the screw is 32 is provided corresponding to the position of the fixing hole 33 formed in the control circuit board 22 so as to prevent the support bottom plate 17 from being deformed by the tightening force of 32 and to position the control circuit board 22. ing.
[0025]
Further, a part of the boss 30 surrounds the fixing male screw 31 and is provided symmetrically. When the fixing nut 20 is tightened to fix the support 4 to the stand 5 as described later. Is uniformly applied to the support bottom plate 17.
[0026]
The upper surface plate 18 of the stand portion 5 has a pillar insertion concave portion 35 formed substantially in the center and into which the pillar base portion 16 is inserted, and a claw engagement portion 36 formed in a peripheral side plate portion and the like.
[0027]
The support post insertion recess 35 is formed in a step portion 37 provided in the upper end corner, a bottom plate (recess bottom plate) 41 of the support insertion recess 35, and a male screw insertion hole 39 through which the fixing male screw 31 is inserted, and the male screw insertion hole. It is formed at the upper end of the side plate (recess side plate) 40 of the column insertion concave portion 35 communicating with 39, and is configured by a rib groove 38 into which the column base side plate rib 27 is inserted.
[0028]
The claw engaging portions 36 are provided on the peripheral side plate portion of the upper surface plate 18 at a plurality of substantially equal intervals, and are provided adjacent to the peripheral side claw grooves 42 so that the peripheral side plate portion of the upper surface plate 18 is provided. 6 (b), formed on the front side tattoo portion of the concave side plate 40 and the concave bottom plate 41 of the column insertion concave portion 35 and the column base projection 26 and the column as shown in FIG. 6 (b). It has a projection engaging hole 43 into which the bottom plate projection 28 is inserted, a concave side engaging claw 44 (see FIG. 5) formed below the rib groove 38, and the like.
[0029]
The base plate 19 of the stand portion 5 is formed corresponding to the male screw insertion hole 39, and has a male screw fixing hole 46 formed by raising the periphery toward the upper surface plate 18, and an outer end of the male screw fixing hole 46. A concave claw groove 47 that is erected and engages with the concave engagement claw 44, a peripheral engagement claw 48 formed on the peripheral plate portion of the base plate 19 and engaged with the peripheral claw groove 42, An annular rib 49 that stands upright to face the engaging claw 48, the peripheral side plate portion of the upper surface plate 18 is sandwiched between the peripheral side engaging claw 48, the reinforcement of the base plate 19, and the prevention of deformation of the peripheral side plate portion. It has a reinforcing rib 50 which acts.
[0030]
With such a configuration, first of all, when assembling the support portion 4, the control circuit board 22 is electrically connected to the switch 21, the motor, and the like, and the position of the fixing hole 33 of the control circuit board 22 is set to a predetermined boss on the support bottom plate 17. Abut 30 and align.
[0031]
Then, the support bottom plate 17 is addressed to the support base 16. At this time, a screw 32 is inserted from below the support bottom plate 17 into the through hole of the boss 30 and screwed so that the support base side plate 24 fits into the rib 29 erected around the support bottom plate 17.
[0032]
Next, the stand unit 5 is assembled. To assemble the stand 5, the peripheral side plate of the upper surface plate 18 is inserted between the peripheral side plate of the base plate 19 and the annular rib 49, and the concave side engaging claw 44 and the peripheral side claw formed on the upper surface plate 18 are formed. The groove 42 is aligned with the concave claw groove 47 and the peripheral engagement claw 48 formed in the base plate 19, and the upper surface plate 18 is engaged with the base plate 19 by pressing the base plate 19 against the base plate 19.
[0033]
As described above, since the screws are not used for assembling the upper surface plate 18 and the base plate 19, screw tightening work is not required, and the number of assembling steps can be reduced, and inconvenience due to excessive or insufficient screw tightening force occurs. Can be prevented.
[0034]
Finally, the column base 16 to which the column bottom plate 17 is attached is attached to the stand 5. At this time, the support base 16 is inserted into the support insertion recess 35. At this time, the support 4 is inclined appropriately to the front side, and the support base protrusion 26 and the support bottom plate protrusion 28 are inserted into the protrusion engagement holes 43 of the upper surface plate 18. The support 4 is inserted and the inclination of the support 4 is corrected (raised).
[0035]
The strut base side plate 24 is provided appropriately inside from the periphery of the operation panel 23, and the step portion 37 is lowered by the thickness of the operation panel 23. Therefore, when the strut base 16 is inserted into the strut insertion recess 35, In this case, the operation panel 23 and the upper surface plate 18 have the same height.
[0036]
When the support base 16 is inserted into the support insertion recess 35 in this manner, the fixing male screw 31 is inserted through the male screw insertion hole 39 and the male screw fixing hole 46 and jumps out of the male screw fixing hole 46. Then, the fixing nut 20 is screwed into the fixing male screw 31.
[0037]
As a result, the support 4 is fixed to the stand 5, and the electric fan 1 can be used.
[0038]
When the fan 1 is stored, the support nut 4 is lifted while the fixing nut 20 is removed and the support column 4 is appropriately inclined to the front side, so that the support base protrusion 26 and the support bottom plate protrusion 28 are engaged. It becomes possible to separate from the stand part 5 through the mating hole 43.
[0039]
When the fan 1 is tilted or tilted, the entire load of the fan 1 is applied to the periphery of the stand 5, and the upper plate 18 and the base plate 19 may be bent because the housing of the stand 5 is made of resin. is there.
[0040]
Since the deformation such as the bending becomes large in the peripheral portion of the stand portion 5, there is a fear that the engagement between the peripheral claw groove 42 and the peripheral engaging claw 48 may be loosened and sometimes disengaged.
[0041]
Therefore, in the present invention, such deformation is suppressed, and even when the deformation occurs, the annular rib 49 and the peripheral side plate support 51 are so formed that the engagement between the peripheral side claw groove 42 and the peripheral side engaging claw 48 is not released. , A reinforcing rib 50 are provided.
[0042]
That is, when the peripheral side plate portion of the base plate 19 is deformed by such a load, the annular rib 49 provided to face the peripheral side plate portion of the base plate 19 is also deformed, and the deformed shape is the peripheral side plate portion of the base plate 19. It has the same shape as the part.
[0043]
Therefore, the peripheral side plate portion of the base plate 19 and the annular rib 49 are also inserted into the gap formed by the peripheral side plate portion of the base plate 19 and the annular rib 49 so as to be deformed into the same shape. Receive power from.
[0044]
Accordingly, the peripheral claw groove 42 and the peripheral engagement claw 48 are both deformed in the same manner, so that the disengagement can be prevented.
[0045]
Of course, when such deformation occurs, the engagement is more likely to be released than when no deformation occurs.
[0046]
Thus, the peripheral plate supporting member 51 supports the peripheral plate of the upper plate 18, and the reinforcing rib 50 supports (regulates) the peripheral plate of the base plate 19, thereby suppressing the deformation itself. .
[0047]
In addition, since the concave side claw groove 47 and the concave side engaging claw 44 are provided at symmetric positions with respect to the axis of the fixed male screw 31 when viewed from the front, a stable engaging force is exerted and the engaging portion is formed. , And efficient engagement can be performed.
[0048]
As a result, even when the fan 1 is tilted or tilted and a concentrated load is applied to the peripheral portion of the stand portion 5 to cause bending or the like, the engagement between the peripheral claw groove 42 and the peripheral engaging claw 48 is released. And reliability is improved.
[0049]
In the above description, the case where the peripheral claw groove 42 and the concave engaging claw 44 are formed on the upper surface plate 18 and the peripheral engaging claw 48 and the concave claw groove 47 are formed on the base plate 19 has been described. The present invention is not limited to such a configuration, but has the opposite configuration, that is, a peripheral side engaging claw 48 and a concave side claw groove 47 are formed on the upper surface plate 18, and a peripheral side claw groove 42 and a concave side engaging groove are formed on the base plate 19. A dowel 44 may be formed.
[0050]
Further, the peripheral side plate of the upper plate 18 is formed so as to be sandwiched between the peripheral side plate of the base plate 19 and the annular rib 49, but the peripheral side plate of the base plate 19 is formed between the upper side plate 18 and the annular rib 49. It may be formed so as to be sandwiched between. However, in this case, the annular rib 49 needs to be formed on the upper plate 18.
[0051]
【The invention's effect】
As described above, according to the first aspect of the present invention, the stand portion is provided with the column insertion recess into which the column base is inserted and the male screw insertion hole formed in the bottom surface of the column insertion recess and through which a fixed male screw is inserted. A base plate provided with a male screw fixing hole which is addressed from the lower side of the upper plate and through which a fixing male screw is inserted, and wherein a plurality of claw grooves are provided in the upper plate or the base plate, Alternatively, the upper surface plate is provided with an engagement claw that engages with the claw groove, and is formed by the claw engagement portion that engages the upper surface plate and the base plate, so that assembling of the stand portion is facilitated and reliability is improved. I do.
[0052]
According to the second aspect of the present invention, the claw engaging portion includes the peripheral claw groove or the peripheral engaging claw provided at substantially equal intervals in the peripheral side plate portion of the top plate, and the end of the male screw insertion hole. A plurality of concave side engaging claws or concave side claw grooves provided on the base portion, and a peripheral side engaging claw or a peripheral side claw groove provided at substantially equal intervals on the peripheral side plate portion of the base plate, and male screw fixing. A plurality of concave side claw grooves or male screw side engagement provided at the end of the hole are provided, the peripheral side claw groove and the peripheral side engaging claw are engaged, and the concave side engaging claw and the concave side claw groove are provided. And the upper plate and the base plate are engaged with each other, so that the assembling of the stand can be easily performed only by pressing the upper plate and the base plate against each other.
[0053]
According to the third aspect of the present invention, the upper plate is a dish-shaped member, the peripheral edge of which forms a side plate, and the side plate has a peripheral claw groove or a peripheral engaging claw formed thereon, and the base plate has a dish-like shape. When the peripheral edge of the member forms a side plate, a peripheral engaging claw or a peripheral claw groove is formed in the side plate, and when the upper plate and the base plate are engaged with each other, the side plate of the upper plate and the base plate As the side ribs are provided on the top plate or the base plate, the annular ribs are provided on the upper surface plate or the base plate so as to sandwich the side plate located on the inner side with the side plate located on the outside so that the side plate located on the inner side is sandwiched between the side plates located on the outside. Even if the portion is bent, the engagement between the peripheral claw groove and the peripheral engagement claw is not easily disengaged, so that the reliability is improved.
[0054]
According to the invention as set forth in claim 4, the concave side engaging claw and the concave side claw groove are provided symmetrically at least at the left and right positions as viewed from the front position of the electric fan, so that the number of engaging portions is reduced and an efficient engagement is achieved. Is possible.
[Brief description of the drawings]
FIG. 1 is a perspective view of a fan applied to an embodiment of the present invention.
FIG. 2 is an exploded view of the electric fan.
FIG. 3 is a view as seen from a base plate.
FIG. 4 is a sectional view taken along line AA in FIG. 3 in FIG. 3;
FIG. 5 is a sectional view taken along line BB in FIG. 3;
6A and 6B are configuration diagrams of an upper plate, wherein FIG. 6A is a rear view and FIG. 6B is a cross-sectional view taken along line CC in FIG.
7A and 7B are configuration diagrams of a base plate, wherein FIG. 7A is a top view and FIG. 7B is a cross-sectional view taken along line DD in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fan 3 Blade part 4 Support part 5 Stand part 6 Control part 15 Support 16 Support base 17 Support bottom plate 18 Top plate 19 Base plate 20 Fixing nut 24 Support base side plate 26 Support base protrusion 27 Support base side plate rib 28 Support bottom plate protrusion 31 Fixed male Screw 35 Post insertion recess 36 Claw engaging portion 37 Stepped portion 38 Rib groove 39 Male screw insertion hole 42 Peripheral claw groove 43 Projection engaging hole 44 Recessed side engaging claw 46 Male screw fixing hole 47 Recessed side claw groove 48 Peripheral side Engagement claw 49 Annular rib 50 Reinforcement rib 51 Peripheral side plate support

Claims (4)

In a fan having a blade portion having a rotating blade, a column portion connected to the blade portion and supporting the blade portion, and a stand portion for detachably fixing the column portion,
An upper surface plate having a column insertion recess into which the column portion is inserted;
A base plate addressed from below the top plate,
A plurality of claw grooves are provided on one of the top plate or the base plate, and an engagement claw that engages with the claw groove is provided on the other of the top plate or the base plate, and the claw groove and the engagement claw are provided. And a claw engaging portion that engages the upper surface plate and the base plate by engaging with the fan. The claw engaging portion includes the perimeter claw groove or the perimeter engaging claw provided in a perimeter plate portion of the top plate, and a plurality of recessed side engagement members provided at an end of the support column insertion recess. Equipped with a dovetail or concave side claw groove,
Along with the peripheral side engaging claw or the peripheral side claw groove provided on the peripheral side plate portion of the base plate, a plurality of concave side claw grooves or concave side engaging claw provided at an end of the support column insertion concave portion are provided. prepare for,
The peripheral claw groove and the peripheral engagement claw are engaged with each other, the concave side engagement claw is engaged with the concave side claw groove, and the upper surface plate and the base plate are engaged with each other. The electric fan according to claim 1, characterized in that: When the upper surface plate and the base plate are engaged with each other, the peripheral side plate portion of the upper surface plate and the peripheral side plate portion of the base plate are in contact with each other, and the peripheral side plate portion located inside at that time is surrounded by the peripheral portion located outside. The fan according to claim 2, wherein an annular rib is provided on the upper surface plate or the base plate so as to be sandwiched between the side plate portions and corresponding to the outer peripheral side plate portion. 4. The electric fan according to claim 1, wherein the concave-side engaging claw and the concave-side claw groove are provided at symmetrical positions when viewed from a front position of the electric fan. 5.

Images