JPH0635969Y2 - Fan packaging equipment - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to an electric fan equipped with a swing mechanism, which is packaged in an outer box via a cushion material. TECHNICAL FIELD The present invention relates to a packaging device for an electric fan, which is an improved material.

(Prior Art) In a general fan, a swing mechanism for swinging the head by utilizing the rotation of the motor is provided on the rear side of the head as a motor unit.

On the other hand, as a packaging device for this type of fan, there is well known a device in which the fan is packaged by being housed in an outer box made of corrugated cardboard via a cushion material formed of expanded polystyrene. In this structure, the back side of a heavy head provided with a swing mechanism is fitted and protected in a recess provided in a cushion member that receives the back side of the fan.

(Problems to be solved by the invention) In the case of the above-mentioned conventional one, the outer box and the cushioning material cushion and protect the fan against external force to some extent, but with respect to a strong impact such as an impact due to a drop during transportation, In particular, in the head of the fan body, which is the motor part, the motor shaft and the bearing bite due to the impact, and the starting performance of the motor deteriorates.

That is, in the prior art, as shown in FIG. 5, the rear side of the head 1 is fitted into the concave portion 3 of the cushion material 2 so as to come into contact with the entire inner surface thereof. In most cases, the concave portion 3 falls and falls, and even if there is some margin between the outer peripheral surface of the cover 4 and the inner peripheral surface of the concave portion 3, the concave portion 3
A large impact force acts on the cover 4 of the head 1 from the corner of the bottom of the head in the direction indicated by arrow A, for example. Then, the impact force acts from the cover 4 to the gear case 6 of the swing mechanism 5 to which the cover 4 is screwed. Then, while the gear case 6 is a bent product of an iron plate, the bracket 7 of the motor is a drawn product of an iron plate and has a large strength. Therefore, the gear case 6 is deformed into a distorted shape as indicated by a chain double-dashed line. A lateral force acts from the worm wheel 8 attached to the motor 6 to the worm gear 9a formed at the rear end of the motor shaft 9, and as a result, the motor shaft 9 bites the bearing 10.

The present invention has been made in view of the above-mentioned circumstances, and therefore, the purpose thereof is, needless to say, to some external force.
It is an object of the present invention to provide a practically excellent fan packaging device capable of reliably protecting the fan, particularly the motor unit and the swing mechanism, against a strong impact such as a drop caused during transportation.

[Means for Solving the Problems] (Means for Solving the Problems) In a fan packaging device according to the present invention, a portion of a cushion material that receives a rear side of a main body of the fan is provided with a recess for fitting a rear portion of a motor section. In addition, a step portion that forms a gap with the outer box is provided on the side opposite to the concave portion, and a projecting portion that receives the rear end of the motor portion is provided at the center of the inner bottom surface of the concave portion. It is what

(Operation) According to the above means, due to the gap formed between the stepped portion of the cushion material and the exterior box, direct external force and impact are not applied to the motor unit and the swing mechanism of the main body of the fan. Is an external force or shock that is weakened by deforming the outer box or cushion material in the above-mentioned gap. Moreover,
In the recess of the cushion material, since there is a gap between the rear end of the motor section around the protrusion on the bottom surface,
External force and impact are further weakened by the buffering effect of the convex part,
Thus, the fan, particularly the motor section and the swing mechanism can be surely protected.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

First, in FIG. 3 showing the state of use of the fan, 11 is a main body, and a pillar 13 is erected on a base 12 and a neck piece 14
It is configured by assembling a head portion 15 which is a motor portion via. A blower blade 16 is attached to the front end of the motor shaft 17 in front of the head portion 15, and a rear guard 18 and a front guard 19 that cover the blower blade 16 are further assembled. Also,
As shown in FIG. 4, the plastic cover 20 of the head 15 is shown.
A gear case 22 of the swing mechanism 21 is arranged in the rear portion of the inside. The gear case 22 is formed by bending an iron plate, and is a motor bracket formed by drawing an iron plate.
The rear portion of the cover 20 is fixed to the rear portion of the gear case 22 by a screw 24, and the rear portion of the cover 20 is fixed to the rear portion of the gear case 22 by a screw 25 at a central portion substantially coincident with the axis of the motor shaft 17. A worm wheel 26 mounted in the gear case 22 meshes with a worm 27 formed at the rear end of the motor shaft 17, and a crank gear 28 mounted on the outer lower portion of the gear case 22 is integrated with the worm wheel 26. It meshes with the pinion gear 29. Therefore, when the motor shaft 17 rotates, the rotation is transmitted from the worm 27 to the crank gear 28 via the worm wheel 26 and the pinion gear 29, and the link 30 connected to the crank gear 28 swings to move the head. 15 swings.

Next, in FIGS. 1 and 2 showing the packaging state of the fan, 31 is a lower cushion material formed of, for example, Styrofoam, 32 is an upper cushion material formed of Styrofoam, and 33 is an outer box made of corrugated cardboard. Then, as shown in FIG. 2, the front card 19 and the rear guard 18 are removed from the main body 11 through the cushioning materials 31 and 32 in the outer box 33, and the fan in which the blower blades 16 are removed is housed and packaged. There is. A hole 34 and a handle hole 35 that communicate with each other are formed in the center of the upper surface of the exterior box 33 and the center of the upper cushion material 32, and the handle hole 35 can be carried in a handheld state. I am trying.

Thus, of the two cushion members 31 and 32, the lower cushion member 31 which receives the rear side of the main body 11 is provided with a recess 36 for fitting the rear portion of the head portion 15. And this recess
Of the portion provided with 36, a step portion 37 is formed on the lower surface portion opposite to the concave portion 36, and the outer box is provided in the above-mentioned packaging state.
A gap 38 is formed with 33. In addition, a protrusion 39 that receives the center of the rear end of the cover 20 is provided at the center of the inner bottom surface of the recess 36, and a gap 40 is provided around the protrusion 39 between the rear end of the cover 20. Existing.

Now, in the packaging device having the above-mentioned configuration, it is assumed that the packaging device is accidentally dropped while being carried by the handhold hole 35, for example. In this case, it is rare that the entire bottom surface of the outer box 33 lands at one time, and most of the outer box 33 falls in an inclined state. For example,
Now, it is assumed that the head 15 side is tilted downward while the base 12 side is tilted upward, and an impact force in the direction indicated by the arrow B acts on the ridge of the exterior box 33. Then, the impact force is 38 in the gap and the outer box
It is weakened by the deformation of 33 or the deformation of the cushion material 31 in the gap 38. Moreover, the recess
A protrusion 39 is provided at the center of the inner bottom surface of the cover 36, and the periphery of the protrusion 39 is separated from the rear end surface of the cover 20, and in many cases, the inner peripheral side surface of the recess 36 and the outer peripheral surface of the cover 20. Are not so tightly fitted to each other and have a slight margin, unlike the conventional case where the entire inner bottom surface of the recess 3 is in contact with the entire rear end surface of the cover 4, the corner of the inner bottom portion of the recess 39 is different. The impact force weakened as described above is further weakened by deforming the protrusion 39 in the compression direction without receiving the impact force from the portion. As a result, the impact force acting on the cover 20 is a weak impact force acting substantially in the axial direction of the motor shaft 17 at the central portion of the rear end portion, and the lateral impact is extremely small. Therefore, the gear case 22 is not deformed laterally in a distorted manner. Therefore, a large lateral force is not applied to the worm wheel 26 from the worm wheel 26, and the motor shaft 17 acts on the bearing 41 (see FIG. 4). It is possible to prevent the occurrence of the problem that the bite will start to bite.

The step may be provided not only on the lower cushion material 31 but also on the upper cushion material 32.

Besides, the present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention.

[Effect of the Invention] As described above, according to the present invention, a portion of the cushion member that receives the rear side of the main body of the fan is a portion provided with a concave portion for fitting the rear portion of the motor portion. On the opposite side, a step portion that forms a gap with the outer box is provided, and a protrusion that receives the rear end of the motor portion is provided at the center of the inner bottom surface of the recess. The present invention has a practical effect that it is possible to surely perform buffer protection of the fan, especially the motor section and the swing mechanism even against a strong impact such as a drop caused during transportation.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a vertical sectional side view of the whole packaged state, FIG. 2 is a transverse plan view of the same, and FIG. 3 is a fan unit in use. FIG. 4 is an enlarged vertical side view taken along the line IV-IV in FIG.
The figure corresponds to FIG. 4 showing a conventional packaging device. In the figure, 11 is a main body, 15 is a head (motor section), 17 is a motor shaft, 20 is a cover, 21 is a swing mechanism, 22 is a gear case,
Reference numeral 23 is a motor bracket, 31 is a cushion material, 32 is a cushion material, 33 is an outer box, 35 is a handle hole, 36 is a concave portion, 37 is an end portion, 38 is a gap, and 39 is a protruding portion.

Claims (1)

[Scope of utility model registration request] 1. An electric fan having a motor part having a swinging mechanism at the rear part in the upper part of the main body is housed and packaged in an outer box via a cushion material, and the rear side of the main body of the electric fan is received. Of the cushion material, a portion provided with a concave portion for fitting the rear portion of the motor portion, and a step portion forming a gap with the outer box is provided on the side opposite to the concave portion, and the concave portion is provided. A fan packaging device, wherein a protrusion for receiving the rear end of the motor is provided at the center of the inner bottom surface of the fan.