JPS6014703Y2 - packaging equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a packaging device for packaging vertically long products such as washing machines and refrigerators.It has a simple structure that prevents dents on some corners of the main body, which has been a market complaint for the above products. The purpose is to provide a packaging device that can be used at low cost.

This type of dent on the corner of the main body mainly occurs on the loading bed of the truck, and as shown in Figure 4, the cause of this is that when the truck is mixed with small items, sudden braking occurs as shown by arrow A. As a result, the product is tilted and oscillated significantly, causing the middle part of the corner of the large product to collide with the corner of the small product, resulting in a dent, or, as shown by arrow B, the middle part of the corner of the large product collides with the corner of the small product, or as shown by arrow B, the middle part of the corner of the large product collides with the corner of the small product. There are two possibilities: hitting the corner of the truck bed and causing dents, but as countermeasures for these,
Conventionally, as shown in FIG. 5, a corner protection member 11 made of styrofoam, paper, or the like and having a cross-sectional shape of an L-shape is inserted into a vertical ridge 12a of a device body 12.

As a result, it has become possible to prevent dents in the intermediate corners of the device body 12, but with this configuration, the specially shaped corner protection member 11 must be provided separately, resulting in a reduction in material and workability. However, it has the disadvantage of being expensive.

The present invention has been devised to eliminate the above-mentioned conventional drawbacks, and the present invention will be explained below based on drawings showing embodiments thereof.

In FIGS. 1 to 3, reference numeral 1 denotes a main body of a device such as a washing machine to be packaged, and 2 a lower cushioning body for placing and fixing the bottom of the device main body 1, which is made of polystyrene foam or the like.

3 is an upper buffer body installed on both sides of the upper part of the device main body 1;
Like the lower cushioning body 2, it is made of foamed polystyrene or the like.

Reference numeral 4 denotes a bottom box in which a plurality of the lower buffer bodies 2 are installed in a part of a corner, and 5 is an outer box whose lower end is inserted into the bottom box 4 so as to cover the main body 1 of the device.This outer box 5 is made of cardboard or the like. has been done.

Reference numeral 6 denotes a plurality of fixing pads for winding and fixing the bottom box 4 and the outer box 5, and this fixing band 6 is made of polypropylene.

The packaging device having the above configuration is extremely vulnerable to dents since there is no cushioning material or the like in the intermediate portion of the vertical ridge portion 1a at each corner of the device body 1.

Therefore, in the embodiment of the present invention, a sheet-like heat-shrinkable film 7 is arranged on the back side of the corner vertical ridge 5a of the outer box 5, and the left and right ends 7a of this sheet-like heat-shrinkable film are connected to the outer box 5.
The adhesion is fixed to the adjacent side surfaces 5b and 5c with glue or adhesive, and when inserting the outer box 5 into the bottom box 4 in the packaging machine, the nozzle 8 etc. as shown in FIG. Hot air is sent into a part of the corner of the outer box 5 to shrink the center portion 7b of the sheet-like heat shrinkable film 7 as shown by the two-dot chain line, so that the cross section is omitted by the adjacent side surfaces 5b*5c of the outer box 5. A triangular buffer portion 9 is constructed.

With such a configuration, the rigidity of a portion of each corner of the outer box 5 can be increased, and since the sheet-like heat-shrinkable film 7 has elasticity, a portion of each corner of the outer box 5 can be prevented from being damaged from the outside. Even if a shock is applied, the shock can be effectively buffered.

As described above, according to the present invention, a sheet-like heat-shrinkable film is arranged on the back side of the vertical corner portion of the outer box, and the left and right ends of this sheet-like heat-shrinkable film are fixed to the adjacent sides of the outer box, respectively. The central part of the sheet-like heat-shrinkable film is shrunk by heat, etc., and the adjacent side surfaces of the outer box form a cushioning body having a substantially triangular cross section. The rigidity is extremely high, and the elasticity of the sheet heat-shrinkable film effectively buffers against external shocks. The problem of dents is eliminated, and since the sheet-like heat-shrinkable film can be attached and fixed together with the cardboard that makes up the outer box, it is easy to work with. Since the shrinking operation can also be mechanized, it is possible to provide a packaging device that is cheaper than conventional packaging devices.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view of a packaging device showing an embodiment of the present invention, Fig. 2 is a partial cross-sectional view for explaining the contracted state of the main part, and Fig. 3 is a whole cross-section of the main part. 4 are state diagrams showing the causes of dents on products, and FIG. 5 is a partially cutaway perspective view showing a conventional packaging device. 5...Exterior box, 5a...Vertical ridge, 5b
, 5c... Adjacent side surfaces, 7... Sheet heat shrinkable film, 7a... Left and right ends, 7b...
...Central part, 9...Buffer part.

Claims (1)

[Scope of utility model registration request] A sheet-like heat-shrinkable film is placed on the back side of the corner vertical ridge of the outer box that covers the device body, and the left and right ends of the sheet-like heat-shrinkable film are fixed to adjacent sides of the outer box, respectively. A packaging device in which a cushioning body portion having a substantially triangular cross section is constructed by adjacent sides of an outer box and a sheet-like heat-shrinkable film.