JP2577984Y2 - Fan - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan having a blower vertically movable with respect to a fan body.

[0002]

2. Description of the Related Art Conventionally, in this type of electric fan, a slide pipe is provided on a support of a fan main body so as to be vertically movable, and a blower having a fan and a fan motor is mounted on an upper end of the slide pipe. By moving the slide pipe up and down with respect to the section, the blower is positioned at a desired height.

FIG. 10 shows a lower end portion of a slide pipe 1 of a conventional fan, and a connection cord 2 connected to a fan motor or the like on a blower side is connected to the slide pipe 1.
Through the inside, it is drawn out from the lower end to the inside of the fan main body and wired.

The connection cord 2 is extended from the lower end of the slide pipe 1 so as to maintain the connection with the fan body even when the slide pipe 1 moves upward. However, in a state where the connection cord 2 is pulled out from the lower end of the slide pipe 1 as it is at the free end, the connecting cord 2 cannot be pulled out in any direction. It is easy to get caught between the pillars and may be damaged.

Therefore, the connecting cord 2 is held by a stopper body 3 attached to the lower end of the slide pipe 1 to prevent the connecting cord 2 from coming off from the support column. Try to prevent. The stopper body 3 is formed in a cap shape to be fitted and fitted to the lower end of the slide pipe 1, and a hook part 5 having a holding space part 4 for holding the connection cord 2 in an inserted state is formed on a side part. I have.

The stopper body 3 is connected to the slide pipe 1
In order to attach the stopper body 3 to the lower end of the connection pipe 2, insert the tip end of the connection cord 2 into the holding space 4 of the stopper body 3, pass the stopper body 3 to a predetermined position of the connection cord 2, and then slide the stopper body 3 1, and is screwed to the slide pipe 1 through the stopper body 3 to be fixedly fastened.

A notch 7 is formed in the hook 5, but the notch 7 has a gap width smaller than the diameter of the connection cord 2, so that the connection cord 2 cannot be inserted. this is,
If the interval width of the notch 7 is wider than the diameter of the connection cord 2, the connection cord 2 comes off through the notch 7, and the holding action is not performed.

[0008]

In the structure of the conventional fan, when the stopper body 3 is attached to the lower end of the slide pipe 1, the tip of the connection cord 2 is inserted into the holding space 4 of the stopper body 3 and passed therethrough. It takes time and effort to move the body 3 to a predetermined position of the connection cord 2, and the workability of assembly is poor.

The present invention has been made in view of such a point, and when attaching a stopper body to a slide pipe, it is possible to reduce the troublesome work of inserting the tip of a connection cord into a holding space and passing the same. It is an object of the present invention to provide a fan capable of improving workability.

[0010]

According to the present invention, there is provided a fan main body having a column, a slide pipe provided to be vertically movable with respect to the column, and a fan and a fan motor provided at an upper end of the slide pipe. A fan having a blower and a stopper attached to a lower end of the slide pipe while holding a connection cord drawn out from the blower through the slide pipe to the fan main body. A hook portion having a holding space for holding a cord is provided, and an insertion opening is provided in the hook portion so that a connection cord can be inserted into the holding space from a side, and the stopper body is provided in the slide pipe. And a restricting portion that is positioned at the insertion opening when the device is mounted, and that restricts insertion of the connection cord from the insertion opening.

[0011]

In the present invention, in order to attach the stopper body to the lower end of the slide pipe, the connection cord drawn out of the slide pipe is inserted through the insertion opening from the side of the stopper body, for example, to the middle part near the slide pipe. The holding space is fitted, and the stopper body is fitted to the lower end of the slide pipe. In this fitting state, the restricting portion of the slide pipe is located at the insertion opening of the stopper body, closes the opening of the insertion opening to a width where the connection cord cannot be inserted, and holds the connection cord in the holding space.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 3 and 4, reference numeral 11 denotes a fan main body.
A cap 14 is attached to the upper end of the column 13, and a slide pipe 15 is projected from the column 13 through the cap 14 so as to be vertically movable.

At the lower end of the slide pipe 15, a spring 16 is attached which is urged upward by an urging force which balances the weight of the slide pipe 15 and a blower 21 which will be described later.
The spring body 16 is formed of a band-shaped spring, and one end is provided with a cap 14.
And the other end is connected to a reel portion 17 installed inside the lower end of the slide pipe 15, and has elasticity in the direction of winding on the reel portion 17, that is, slides the slide pipe 15. It is urged upward by an urging force that balances the weight of the pipe 15 and the blower 21.

At the lower end of the slide pipe 15, a stopper body 18 for preventing the support 13 from falling off the slide pipe 15 and holding a connection cord 28 described later is attached. .

The blower 21 is attached to the upper end of the slide pipe 15 via a neck piece 22. A drive unit 25 having a fan motor 23 and a swing mechanism 24 is supported on the neck piece 22. Fan motor on front of part 25
A fan 26 that is driven to rotate by 23 is mounted, and a guard 27 that covers the fan 26 is mounted.

The base portion 12 of the fan main body 11 has a bottom surface covered with a bottom plate 31, and houses a printed circuit board 32 on which a power supply circuit and a control circuit are mounted. A power cord connected to commercial power on the power input side of the printed circuit board 32
A connection cord 34 for supplying power to the drive unit 25 of the blower 21 is connected to the output side.

The connection cord 34 is drawn from the drive unit 25 through the neck piece 22 and the slide pipe 15, and is drawn out from the lower end of the slide pipe 15 into the electric fan main body 11. 32
In order to maintain the connection with the slide pipe 15, the slide pipe 15 is drawn long from the lower end.

The slide pipe 15 is formed of a synthetic resin in the shape of an elliptical cylinder which is wide in the front-rear direction, and a spring 16 is extended from the lower end to the front side as shown in FIGS. A lead-out portion 41 is formed, and a mounting hole is formed inside the rear surface side.
A boss 43 having a recess 42 is formed on both sides on the front side.
Is formed, and an opening 45 is formed on one side of the rear surface side. At the edge of the opening 45, there is provided a restricting portion 46 which is located at a later-described insertion opening 64 of the stopper 18 and restricts insertion of the connection cord 34 from the insertion opening 64 when the stopper 18 is attached. ing.

As shown in FIGS. 5 to 7, a concave groove 47 is formed along the longitudinal direction in a substantially lower half area of the rear surface of the slide pipe 15, and two concave portions are formed near the upper end of the concave groove 47. A locking hole 48 is formed through.

As shown in FIGS. 1 and 2, the stopper body 18 is formed of a synthetic resin in the form of a cap fitted and fitted to the outside of the lower end of the slide pipe 15, and has a bottom surface.
51 and side portions 52 protruding from the periphery of the bottom portion 51
Consists of

A projecting piece 53 is formed at the center of the bottom part 51, and a through hole 55 is formed near the rear side where a mounting screw 54 screwed into the mounting hole 42 of the boss 43 of the slide pipe 15 is inserted. Have been.

The side portion 52 has a leading portion 56 on the front side from which the spring body 16 is led out, and a hook 57 on both sides on the front side having a claw portion 57 for elastically engaging with the concave portion 44 of the slide pipe 15. A stopper piece 58 is formed so as to protrude, and a concave step-like portion 59 is formed on one side of the rear surface side. The stepped portion 59 has an edge portion 60 of the side surface portion 52.
A holding surface portion 61 is formed at a position further apart inward.

Further, the hook portion is formed from the rear upper end of the holding surface portion 61.
62 is formed to project toward the edge 60, and a holding space 63 holding the connection cord 34 between the hook 62 and the holding surface 61.
Is formed, and an insertion opening 64 is formed between the tip of the hook portion 62 and the edge portion 60 so that the connection cord 34 can be inserted into the holding space 63 from the side at a wider interval than the diameter of the connection cord 34. ing. Further, from the upper end of the holding surface 61, a protruding piece 65 is formed so as to protrude upward.

The cap 14 is shown in FIGS.
As shown in the figure, an annular portion 71 attached to the upper end of the column 13
The slide pipe 15 is formed from the lower surface of the annular portion 71.
Is formed so as to be vertically movable.
A projection 73 that fits into the concave groove 47 of the slide pipe 15 protrudes from a rear portion of the slide pipe 15, and a bulging portion 74 is formed at a rear portion of the annular portion 71. A lock member 75 is supported inside the bulging portion 74 so as to be swingable around a support shaft 76, and a locking portion below the lock member 75 is capable of engaging and disengaging with a locking hole 48 of the slide pipe 15. 77
A release button 78 protruding from the window 74a of the bulging portion 74 is formed at the upper end.
Is urged by a spring 79 to rotate clockwise in FIG.

Then, a slide pipe together with the blower 21
The locking portion 77 of the locking member 75 is fitted into the locking hole 48 at the position where the 15 is most lowered, locking the slide pipe 15 with respect to the support portion 13 and pushing the release button portion 78. By releasing the lock, the slide pipe 15 can be moved upward, and the blower 21 can be raised.

Next, the operation of this embodiment will be described.

In order to attach the stopper body 18 to the lower end of the slide pipe 15, first, the stopper cord 18 is inserted from the side of the stopper body 18 into an intermediate portion of the connection cord 34 drawn out from the slide pipe 15 near the slide pipe 15. The holding space 63 is fitted through the opening 64.

Thereafter, the stopper body 18 is connected to the slide pipe 15
Is fitted and fitted to the lower end of the. When the stopper body 18 is fitted, the projecting piece 65 is inserted into the slide pipe 15, and the locking pieces 58 on both sides are fitted into the recesses 44 on both outer surfaces of the slide pipe 15, respectively. The part 52 is fitted to the outside of the slide pipe 15. At this time, the regulating portion 46 of the slide pipe 15 is located inside the insertion opening 64 through the inside of the edge portion 60, and closes the opening of the insertion opening 64 to a width where the connection cord 34 cannot be inserted.

Then, the mounting screw 54 is inserted into the through hole of the stopper body 18.
The stopper pipe 18 is screwed into the mounting hole 42 of the boss 43 of the slide pipe 15 through 55, and the stopper body 18 and the slide pipe 15 are integrally tightened and fixed.

Therefore, when attaching the stopper body 18 to the slide pipe 15, it is not necessary to insert the leading end of the connection cord 34 into the holding space 63 as in the prior art and to pass the same.
The stopper body 18 can be mounted at an arbitrary position in the middle part of the connection cord 34, so that workability can be improved.

Next, a method of manufacturing the slide pipe 15 will be described with reference to FIG. In FIG. 8, reference numeral 81 denotes a fixed type having a gate 82, and 83 denotes a movable type which is opened and closed with respect to the fixed type 81. Cavity 84
Are formed, and a pair of pins 85 that form the locking holes 48 are protruded from the surface of the cavity 84 of the movable die 83.
Reference numerals 86 and 87 denote slide dies corresponding to the inner shape of the slide pipe 15, each of which is slid from the up and down directions, and a mold matching surface is located between a pair of pins 85 of the movable die 83.

Then, in order to perform the molding, the slide dies 86 and 87 are moved close to each other in the up and down direction while the movable die 83 is open, and the movable die 83 is closed. In this mold closed state, each pin 85 of the movable mold 83 comes into contact with the vicinity of the joint end of each of the slide dies 86 and 87. The molten synthetic resin is injected and filled into the cavity 84 through the gate 82.

At this time, the slide dies 86 and 87 receive the injection pressure of the molten synthetic resin injected into the cavity 84 from the gate 82, but the surface opposite to the surface receiving the pressure is supported by the pins 85. The bending of the slide dies 86 and 87 can be prevented.

After the molten synthetic resin is cured, the movable mold 83 is opened, the slide molds 86 and 87 are moved away from each other in the vertical direction, the molded product is removed from the fixed mold 81, and the gate 82 is removed.

As described above, since the slide dies 86 and 87 can be prevented from bending due to the injection pressure, the thickness of the slide pipe 15, which is a molded product, can be kept uniform and stable quality can be obtained. In addition, the life of the slide dies 86 and 87 can be extended.

FIG. 9 shows another embodiment of the method of manufacturing the slide pipe 15. In this embodiment, the slide pipe 15 is manufactured.
In the case where there is only one locking hole 48 provided in
Protrusions 86a and recesses 87a provided at the matching parts of 6, 87
Thus, even if one slide die 87 is supported by one pin 85, both slide dies 86 and 87 can be integrally supported.

[0038]

According to the present invention, it is possible to fit the holding space portion from the side of the stopper body through the insertion opening to the intermediate portion near the slide pipe, for example, of the connection cord pulled out from the slide pipe. When the stopper body is attached to the lower end of the slide pipe, the stopper of the slide pipe is located at the insertion opening of the stopper body, and the opening of the insertion opening is closed to a width where the connection cord cannot be inserted. , The connection cord can be held in the holding space,
Therefore, when attaching the stopper body to the slide pipe, it is possible to reduce the troublesome work of inserting the distal end of the connection cord into the holding space and passing the same, thereby improving the workability.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view showing an embodiment of a fan of the present invention.

FIG. 2 is a perspective view showing a partially assembled state of the embodiment.

FIG. 3 is a sectional view of the electric fan of the embodiment.

FIG. 4 is a partially cutaway bottom view of the electric fan of the embodiment.

FIG. 5 is a perspective view of a fan main body of the embodiment.

FIG. 6 is a sectional view of a cap portion of the embodiment.

FIG. 7 is a sectional view of the slide pipe of the embodiment.

FIG. 8 is a sectional view showing an embodiment of a method for forming a slide pipe.

FIG. 9 is a cross-sectional view showing another embodiment of a method for forming a slide pipe.

FIG. 10 is a perspective view of a part of a conventional fan in an exploded state.

[Explanation of symbols]

 11 Fan body 13 Column 15 Slide pipe 18 Stopper 21 Blower 23 Fan motor 26 Fan 34 Connection cord 46 Restrictor 62 Hook 63 Holding space 64 Insertion opening

Claims (1)

(57) [Scope of request for utility model registration] 1. An electric fan body having a support, a slide pipe provided to be vertically movable with respect to the support, a blower having a fan and a fan motor and provided at an upper end of the slide pipe, and the blower And a stopper body attached to the lower end of the slide pipe while holding a connection cord drawn out to the fan main body side through the slide pipe, wherein the stopper body has a holding space for holding the connection cord A hook portion is provided, and an insertion opening is provided in the hook portion so that a connection cord can be inserted from the side into the holding space portion. The slide pipe is inserted into the hook while being positioned in the insertion opening when the stopper body is attached. A fan provided with a restricting portion for restricting insertion of the connection cord from an opening.