JPS629269Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> This invention relates to a cushioning packaging material, and particularly to a cushioning packaging material for a curved plate-shaped article such as a side shelter of a two-wheeled vehicle, which is formed into a curved plate shape by press molding or the like.

<Background and Prior Art> Conventionally, for example, side shelters that cover the upper part of the engine of two-wheeled vehicles (motorcycles) have been packaged during transportation and storage by wrapping the entire side shelter individually in a sheet-like packaging material such as felt. Afterwards, they were transported and stored on top of each other. However, according to the above method, packaging is time-consuming and the protection effect for the side shelterers is not sufficient, and the side shelterers may come into contact with each other through a thin sheet material, or the end surface of a side shelterer may touch the painted surface of another side shelterer. There were many accidents during transportation and storage, such as damage to the product and deformation due to vibration during transportation, as well as the occurrence of defective products, and improvements were requested. The above-mentioned problem is common to curved plate-shaped articles manufactured by press molding or the like as component parts of various two-wheeled vehicles, four-wheeled vehicles, etc., in addition to side shelters.

<Purpose> The purpose of this invention is to provide a packaging material for curved plate-shaped articles such as the above-mentioned side shelters, which is excellent in both protection effect and storage efficiency, and is easy to handle.

<Structure> The structure of this invention to achieve the above object is that only the front and rear ends of the curved plate-shaped article are housed with the middle part exposed, and the entire body is made of synthetic resin foam. Consisting of two types of packaging materials, each packaging material consists of a central storage part and fitting uneven parts connected to both ends of the central storage part to connect the packaging materials vertically.The storage part has a stepped part on the top surface. form,
When the packaging materials are connected vertically, a gap is formed between the storage lower surface of the upper packaging material and the stepped portion of the upper surface of the storage section of the lower packaging material, and the gap matches the shape of the end of the curved plate-shaped article. It is characterized in that the end portion of the curved plate-shaped article can be stored.

<Example> Next, an example of this invention will be illustrated below with reference to the drawings.

The illustrated packaging material is an example of a curved plate-shaped article, and there are two types of packaging materials, front end F and rear end R, which accommodate the front end f and rear end r of the side shelter S, respectively. It is made of resin foam (see Figures 1 and 2). In addition, in the case of the side shelterer S, a pair of left and right shelterers S that are symmetrical to each other are combined and used as a set, and the shape of the packaging material for the left side shelterer and the right side shelterer is also symmetrical. In the figure, the one for the left-hand shelter will be explained.

First, let's talk about the rear end packaging material R (Part 3).
1 to 8), 1 is a storage part, and a step 10 is formed on the upper surface, and the lower side of the step 10 becomes an inclined surface 11 that becomes lower toward the front side in the front view. A concave groove 13 is formed in the center of 12 in correspondence with the extreme end of the rear end r of the shelter, so that the step 10 on the upper surface, the inclined surface 11, and the lower surface 12 follow the shape of the rear end r of the shelter. It is formed in a chevron-shaped curve.

Fitting uneven parts 2, 2 are integrally connected on both sides of the storage part 1, and each fitting uneven part 2 is connected to the packaging material R.
This is for sequentially connecting the upper and lower packaging materials R, R. As long as it can be fitted and connected without shifting forward, backward, left or right, its shape can be changed freely.

When the packaging materials R are connected vertically by the fitting uneven portions 2, the shape of the lower surface 12 of the storage section 1 of the upper packaging material R and the shape of the storage section 1 of the lower packaging material R are The shapes of the upper surface stepped portions 10 are adapted to match exactly (see FIG. 8).

Next, regarding the front end packaging material F (Figs. 9 to 1)
5), the basic structure of the storage portion 1 and the fitting uneven portions 2, 2' on both sides is the same as that of the rear end packaging material R described above. Although a stepped portion 10 is formed on the upper surface of the storage portion 1, the lower side of the stepped portion 10 is not a sloped surface, and conversely, the lower surface 12 of the storage portion 1 on the near side in the front view gradually becomes higher. It has a slope 14 of

In addition, the shape of the entire storage section 1 is also
It is formed in an S-curve shape that follows the shape of.

Among the fitting uneven parts 2 and 2', the uneven part 2 on the left side in the front view has a trapezoidal protrusion 20 similar to the above-described one.
The uneven portion 2' on the right side in the front view has a stepped protrusion 20' and a recess 2 in which the back of the trapezoidal uneven portion is cut out.
1'. This is because the width of the fitting concavo-convex portion 2' is restricted and narrow due to the shape of the front end f of the shelter. Therefore, the stepped uneven portion 2'
When the packaging materials F are connected vertically, it is not possible to completely prevent the packaging materials F from shifting back and forth. A portion 23 is formed on the lower surface of the storage portion 1.

As the material for forming the packaging materials F and R, foamed polystyrene and other synthetic resin foams can be used, but particularly preferred are resins in which polyolefin resin and polystyrene resin are at least partially graft-bonded. Examples include foams.

The above-mentioned resin is produced by using polyolefin particles such as polyethylene or polypropylene as a core, absorbing a styrene monomer and a catalyst for polymerizing the monomer into the core, and polymerizing the styrene monomer within the core. The resin and the polystyrene resin are at least partially grafted (the grafted portion is 1% or more of the total of the polyolefin resin and the polystyrene resin)
This is what I did. In order to obtain packaging materials F and R using such resin, a foaming agent is added to the resin particles to form foamable resin particles [Product name: Piocelan (grafting rate 4%), Sekisui Plastics Co., Ltd. ], the particles are foamed to form pre-expanded particles,
Next, the pre-expanded particles are filled into a mold and heated to fuse and integrate them to obtain packaging materials F and R.

The foam made from the resin mentioned above has a soft touch and prevents damage to packaged items.
It is highly elastic and has excellent restorability when deformed, and has a large impact absorption capacity, making it very suitable as a cushioning material, making it the most suitable material for forming the packaging materials F and R of this invention.

Next, to describe the use of the above-mentioned packaging materials F and R, the front-end packaging material F and the rear-end packaging material R are connected vertically, respectively, and at this time, between the storage parts 1 and 1 of the upper and lower packaging materials, Insert only the front and rear ends f and r of the side shelterer S into the gap C that matches the shape of the front and rear ends f and r of the side shelterer S to be formed, leaving the middle part of the side shelterer S exposed and inserting the packaging material on both sides. It is held between the F and R rows.

In order to efficiently store the side shelter S according to its curved shape, the front and rear packaging materials F,
Among R, one side shelterer S is stored in the first gap C from the bottom of the rear end packaging material R and the lowest surface of the front end packaging material F, and then one side shelterer S is stored in the second stage from the bottom of the rear end packaging material R. Shift the gap C where the side shelterer S is stored between the front and rear packaging materials F and R by one step vertically, such as storing the next side shelterer S in the gap C between the eyes and the first gap C from the bottom of the front end packaging material F. This has the effect of reducing the overall packaging volume. However, in the case of the above packaging state, the top front end packaging material F does not participate in shelter storage, but is used to make the overall packaging shape rectangular and facilitate handling (see Figure 1). ).

Especially when storing and transporting in containers etc.
The standard method of use is to connect 11 pieces of front end wrapping material F and 11 pieces of rear end wrapping material R, and store 10 side shelters S between them to form one unit for packaging. (See Figure 2).

In addition to the side shelter S, the cushioning packaging material of this invention can be applied to various outer panel parts for two-wheeled vehicles and four-wheeled vehicles, and curved plate-shaped articles such as various machine parts, which are particularly susceptible to damage. Also, exterior parts with complex curved shapes,
It is suitable for application to relatively long articles that require time and effort to package.

<Effects> According to the packaging material of this invention constructed as described above, the packaging material made of synthetic resin foam can be used for curved plate-shaped articles such as side shelters of motorcycles that have complex curved shapes. It can hold the front and rear ends of items with good cushioning properties, will not collapse even when stacked, and there is no risk of deformation due to external impact.Furthermore, it reduces wasted space when stacked, resulting in good storage efficiency. Become something. For products such as the side shelter S, among the packaging materials connected vertically,
The middle portion was exposed in a gap C that matched the shape of the end of the curved plate-shaped article and formed between the lower surface of the storage section 1 formed on the upper packaging material and the upper surface of the storage section 1 formed on the lower packaging material. Since only the ends f and r of the article are stored in the state, there is no need to form deep recesses for storing shelters S, etc. in the individual packaging materials F and R, making it easier to form during manufacturing. , the packaging material can be saved compared to the conventional case of packaging the entire product,
To store the shelters S, etc., simply place the side shelterer S, etc. on top of the packaging materials F, R, and then stack the next packaging materials F, R on top.
The work is much easier and more efficient than pushing side shelters etc. into the recesses of individual packaging materials one by one.

In addition, any number of packaging materials can be used by connecting them at the fitting concave and convex portions 2, 2', and the number of packaging materials can be easily changed, and mass production can be carried out at low manufacturing costs.

Therefore, the curved plate shape has various practical values, such as being able to store curved plate-shaped articles such as side shelters, which have been particularly problematic in terms of packaging, with good cushioning properties and storage efficiency, and being easy to handle and economical in cost. It is possible to provide a packaging material for storing articles.

[Brief explanation of the drawing]

The figure illustrates an embodiment of this invention,
Figure 1 is a cross-sectional view of the state in use, Figure 2 is a schematic view of an example of use seen from the back side of the previous figure, Figure 3 is a perspective view of the rear end packaging material, Figure 4 is a front view, and Figure 5 is a perspective view of the rear end packaging material. The figure is a side view, Figure 6 is a plan view, Figure 7 is a sectional view, Figure 8 is a front view of the stacked state, Figure 9 is a perspective view of the front end packaging material, Figure 10 is a front view, and Figure 10 is a front view. 11 is a left side view, FIG. 12 is a right side view, FIG. 13 is a plan view, FIG. 14 is a sectional view, and FIG. 15 is a front view of the stacked state. R...Wrapping material for rear end, F...Wrapping material for front end, 1
... Storage portion, 10 ... Stepped portion, 12 ... Lower surface of storage, 2, 2' ... Fitting uneven portion, C ... Gap, S ...
...Side shelter that becomes a curved plate-shaped article, f...front end, f...rear end.

Claims (1)

[Claims for Utility Model Registration] 1. Two types of packaging materials made entirely of synthetic resin foam, each containing only the front and rear ends of a curved plate-shaped article with the middle part exposed. The packaging material consists of a central storage section and mating concave and convex sections connected to both ends of the central storage section that can connect the packaging materials vertically. When connected, a gap matching the end shape of the curved plate-shaped article is formed between the lower surface of the storage part of the upper packaging material and the stepped part of the upper surface of the storage part of the lower packaging material, and the curved plate-shaped article is inserted into the gap. 1. A cushioning packaging material for storing a curved plate-shaped article such as a side shelter of a two-wheeled vehicle, characterized in that the end portion of the material can be stored. 2. A curved plate-like structure for a side shelter of a two-wheeled vehicle as set forth in claim 1 of the above-mentioned utility model registration claim, wherein the synthetic resin foam is a resin foam in which at least a portion of a polyolefin resin and a polystyrene resin are graft-bonded. Cushioning packaging material for storing items.