JPH082672Y2 - Cases such as photographic film - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a case such as a photographic film.

[0002]

2. Description of the Related Art As is well known by product packers, when a product needs to be put in a case for the purpose of storing it, the product is shielded from the outside. In addition to keeping the product in the open state, it is also necessary to consider the need to keep the basic features of the product such as the product's condition and characteristics.

Thus, for example, a photographic film case must effectively protect the film from light exposure and moisture while the film is in the case. In other words, such a case must preserve the product characteristics needed to fully utilize the product.

[0004] Therefore, the case currently known as a case for containing a product such as a film is a hard cylindrical shape made of a plastic material, and the film is put therein. Also, a somewhat soft cap made of similar plastic material is press-fitted to seal the case. Such a cylindrical case is further placed in an ordinary box made of cardboard or the like.

The above-mentioned case is, as a matter of course, widely used in general because it satisfies the necessary conditions for storing the product. However, this case also has some disadvantages and is subject to some restrictions. For example, the case must be manufactured using different materials (rigid plastic and flexible plastic), using different machines with different manufacturing techniques, which is expensive. Was there. In addition, it is easily affected by temperature changes and may be damaged by a shock such as dropping. Therefore, it was necessary to pay attention to the storage, transportation, and handling of the case.

[0006] Furthermore, a commonly used similar case is composed of a film wrapping material made of special paper and a special shield which are not directly affected by light or moisture. This special packaging material is sealed so that it does not pass light or moisture, and then placed in a paper box or the like.

Like the first-mentioned conventional case, this case has some disadvantages. The biggest problem is that it is difficult to obtain a special shield paper used for manufacturing the packaging material. In addition, the special technology and equipment required for the hermetic seal adds to the cost of obtaining the product.

The present invention has been made to solve the above problems, and an object thereof is to provide a photographic film case having all the desirable characteristics necessary for storing the product. Further, the structure of the case according to the present invention is extremely simple and original, and does not cause the inconvenience that is seen in the similar products in the related art.

[0009]

In order to solve the above-mentioned problems, the case according to the present invention is a box mainly composed of two parts, that is, a pair of basic members each having the same shape as each other and having a polygonal rectangular shape. And a case such as a photographic film which is made of a generally known foamed (polystyrene) plastic. The base member comprises a thick sidewall surface and a bottom having a thin contoured rim formed around the rim, the rim extending slightly from the contacting sides to form a narrow step around the bottom. There is. Also, at each free end of the basic member in contact with the inner wall surface of the case, a protruding rib extending from the center of the edge along the longitudinal direction of the case and a rib from the center of the same longitudinal edge are formed. And a recessed step (4) extending in the opposite direction. Further, the rib and the step are exactly corresponding to each other in terms of dimensions, and have the same height and thickness, and the thickness is equal to half the thickness of the side wall surface of the case. To do.

Further, each basic member of the case is provided with a pair of semicircular arc-shaped bosses at both ends along the longitudinal direction of the inner bottom surface thereof to form a cradle for stabilizing the contents. Good.

[0011]

As described above, according to the present invention, it is possible to obtain a case which can completely protect the film contained therein against not only a temperature change but also an impact such as a drop at a very simple and inexpensive cost. it can. Furthermore, it is possible to obtain a case that is extremely easy to store, transport, and handle because it does not collapse and does not require special management.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Referring to the drawings, the case of a photographic film according to the present invention is preferably made entirely of expanded plastic. This is foamed plastic
plastic), plastic foam
tic foam or "isopol (isopo)
r) ”. This case mainly consists of two parts, namely a pair of basic members 1.
It has a box constituted by (Fig. 1). The basic element of the box described above, which is a rectangular polygon that is horizontal and horizontal, comprises a thick side wall surface and a bottom with a thin contoured rim 2 formed around it. The rim extends slightly from the side it is in contact with (Fig. 3). Thus, there is a narrow step around the bottom.

Further, the free end of each basic member 1 of the case according to the present invention is in contact with the inner wall surface of the case, and the free end is provided with a protruding rib 3. The rib extends from the center of the edge along the longitudinal direction of the case. Furthermore, a step 4 is provided which is recessed from the center of the same longitudinal edge in the direction opposite to the rib. The ribs and the steps correspond in size to each other exactly. That is,
Each has the same height and thickness, and its thickness is equal to half the thickness of the side wall surface of the case.

As mentioned above, the case according to the present invention is
Made from a pair of basic members 1. One of these is the bottom or box itself, and the other acts as a lid (Figure 4). Since the lid is upside down with respect to the position of the free end of the bottom, the rib 3 on the inner edge of the lid fits into the step 4 provided on the bottom edge and is stable. That is, the ribs 3 on the inner side of the bottom likewise fit in the step 4 at the inner end of the lid in a stable state.

When the case according to the invention is combined and closed (FIG. 4), one part (bottom or lid) fits snugly on the corresponding free end of the other. It is easy and hassle-free to open the case. The user applies the fingers of both hands to the rim 2 around the basic member 1 and pulls the lid and the bottom in opposite directions. This allows the two basic members to separate and open the case.

If the case according to the present invention is used to store a photographic film, a pair of semi-circular arc-like shapes are formed at both ends along the longitudinal direction of the inner bottom surface of each basic member 1. Boss 5 (FIG. 5).

When the basic member 1 having bosses 5 at both ends along the longitudinal direction of the bottom is combined into a case, a circular cradle is formed at both ends of a cylindrical packaging material such as a film (FIG. 6).

[0018]

As described above, the case according to the present invention is made of expanded (polystyrene) plastic, and its structure is extremely simple. Therefore, there is an effect that the basic member can be easily obtained from one material. Further, since the corresponding ribs and steps are fixed in a stable state, and a cradle is provided inside to enhance the stability if necessary, a very practical and functional case can be provided. Furthermore, we provide a case that can completely protect the film and other products inside from shocks, drops, temperature changes, etc., while maintaining extremely good conditions during storage, transportation, handling, etc. It has the effect of being able to.

[Brief description of drawings]

FIG. 1 is a perspective view showing a basic member of a case according to the present invention.

FIG. 2 is a plan view of the member shown in FIG.

FIG. 3 is a vertical sectional view of a basic member of the case shown in FIG.

FIG. 4 is a perspective view showing a case according to another embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view showing a state where the case shown in FIG. 4 is properly sealed.

6 is a cross-sectional view showing a state where the case shown in FIG. 4 is properly sealed.

[Explanation of symbols]

 1 Basic member 2 Rim 3 Rib 4 Step 5 Boss

Claims (2)

[Scope of utility model registration request] 1. A box mainly composed of two parts, that is, a pair of basic members (1) having the same shape as each other and having a multifaceted rectangular shape, which is made of a generally known foam (polystyrene) plastic. A case such as a manufactured photographic film, wherein the basic member includes a thick side wall surface and a bottom on which a thin contour rim (2) is formed, the side surface being in contact with the rim. At the free end of each of the basic members (1) that extends slightly from the bottom to form a narrow step around the bottom and is in contact with the inner wall surface of the case. A projecting rib (3) extending from the center and a recessed step (4) extending from the center of the same longitudinal edge in the opposite direction of said rib. The ribs and the steps are dimensionally precise to each other. A case such as a photographic film characterized in that the height and the thickness are the same, and the thickness is equal to half the thickness of the side wall surface of the case. 2. The basic members (1) of the case are
The cradle for stabilizing the contents is provided with a pair of semicircular arc-shaped bosses (5) at both ends along the longitudinal direction of the inner bottom surface thereof. Cases such as photographic film.