JP2000085774A - Container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a shift in position toward a side without side wall while containers having walls on three sides and one side open are stacked vertically, facilitate handling at the time of storing, packing and displaying and avoid damage due to a tumble by extending an uneven part vertically from one of opposite side walls standing from three sides of a bottom plate. SOLUTION: The container 1 comprises a rectangular bottom plate 2 and side walls 3 surrounding it from three sides, while a flange 4 to be folded outward is formed at a rim of the side wall 3. A conic uneven part 31, after its summit has been molded to be spherical, is extended to an approximate half height of the side wall 3 vertically from a widthwise middle on opposite sides of the side walls 3. The uneven parts 31 are molded to protrude oppositely on the opposite sides of the side walls 3 and molded to be recessed on a rear face. Thus when the containers 1 are stacked, the uneven parts 31 fit to each other, whereby the containers 1 can be vertically stacked without swelling toward a side with no side wall 3, so that handling of the container 1 at the time of storing, packing and displaying is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container which can be stably stacked in a vertical direction, for example, during store display, inventory storage, transportation and packing.

[0002]

2. Description of the Related Art In containers having walls on three sides and one opening, when stacked, the stacking does not become vertical, and usually becomes a stacking which gradually comes to the side without a side wall. In such products, for example, well-known dust collectors, minnows, letter trays, etc. It tilts forward and becomes unstable, and eventually falls to the side without the side wall. Even when the stacking height is low, it collapses with a slight impact.

FIG. 4 is a plan view and a bottom view of a container as a conventional example, and FIG. 5 is a sectional explanatory view showing a state where the containers are stacked similarly. In the figure, 1 is a container, 2 is a bottom plate, 3 is a side wall, and 4 is a flange portion. The container 1 includes a square bottom plate 2 and side walls 3 provided so as to surround the bottom plate 2 from three sides.
Is slightly erected so as to spread upward. Such a side wall 3 is inclined along a line connecting the opposite side walls 3 to the edge of the bottom plate 2 on the side without the side wall 3. The ridge line where the bottom plate 2 and the side wall 3 intersect in a direction orthogonal to each other is formed in an arc. The edge of the side wall 3 is provided with a flange 4 which is turned outward. The bottom plate 2 is formed such that the open end has a step of a desired width and has a function as a receiving tray.

On the lower surface of the bottom plate 2, short cylindrical portions 2a bordered by circular ribs are provided at four corners, and a non-slip member formed of felt or the like (not shown) is adhered to function as legs. For the purpose of reinforcing the bottom plate 2, a rib 2b formed of a square rounded rib 2b at the center and a straight line extending along the boundary of the step and a short line orthogonal to the straight line.
c is provided. Further, the short cylindrical portion 2a provided on the opened edge side of the bottom plate 2 is formed to have a conical periphery so as to be lowered by an amount corresponding to the step of the bottom plate so that the circular rib does not become high.

[0005] The flange portion 4 is provided with a rib 4a so as to partition the inside in a direction perpendicular to the inside. This rib 4a is formed shorter than the edge of the flange portion 4 for reinforcement,
In order to have a function for stacking, it is provided with a member that comes into contact with the upper surface of the flange portion 4 when stacked.

[0006]

In the above-mentioned containers, if the containers are piled up high, they are inclined to the side without the side wall and become unstable. Even when it is low, it is difficult to handle because it is in a state of falling down with a slight impact.

In order to eliminate the above-mentioned poor handling, the distance H2 of the inclined portion of the flange portion 4 shown in FIG. Furthermore, if the ribs 4a provided to partition the inside of the flange portion 4 are lowered or removed so that the flange portions 4 of the upper and lower containers fit together, poor handling can be improved.

However, reducing the distance H2 of the inclined portion of the flange portion 4 necessitates deterioration of the overall strength, or fitting the lower portion of the rib 4a with the height of the rib 4a requires lowering the strength. Flange part 4
Is expanded by pushing the lower flange 4
May be damaged by being pressed.

[0009]

The container according to the present invention has been made in order to solve such problems.
According to the first invention, a container formed so as to have a side wall erected from three sides of a substantially rectangular bottom plate has a configuration in which an uneven portion extends in a vertical direction to at least one of the opposing side walls.

In a second aspect of the present invention, a container formed so as to have a substantially rectangular bottom plate having side walls erected from three sides has a configuration in which a concave and convex portion extends in a vertical direction to at least one of the opposing side walls. The height of the stacking ribs provided at the first and second ribs is such that excessive contact between the flange portion and / or the side wall and / or the uneven portion is avoided.

[0011]

FIG. 1 is a plan view and a bottom view showing the structure of a plastic container as a table on which pet tableware according to an embodiment of the present invention is placed, and FIG. 2 is a view A of FIG. 3 is a left side view of FIG. 1 and a partial cross-sectional view of FIG. 2 taken along line BB.
In the figure, components having the same shape and function as existing components are denoted by the same reference numerals, and description thereof is omitted. Reference numeral 31 denotes a conical concave / convex portion having a rounded top portion. It is configured to extend to two heights. The concavo-convex portion 31 is convex on the side facing the side wall 3 and concave on the back surface side.

In the container 1 having the uneven portions 31 configured as described above, when stacked, the uneven portions 31 are fitted and vertically stacked without protruding to the side without the side wall, and the side without the side wall is formed. Even if it is pushed, it does not slide out, maintains a vertical state, and is easy to handle in stock, packing, and product display.

In the above embodiment, the uneven portion 3
As long as 1 does not involve a form in which the facing distance exhibits an undercut upward, irregularities may be formed from an intermediate position in the height direction of the side wall. Although a pair of the concave and convex portions 31 is provided, at least one concave and convex portion 31 may be provided, and the concave and convex portions 31 may be provided to be biased in the width direction of the side wall 3.

In the above embodiment, the container 1 is provided with the flange portion 4 shown in FIGS. 4 and 5, and H1 = H2. Therefore, when the containers 1 are stacked vertically as described above, the apparent distance of the height H2 shown in FIG. 5 becomes shorter due to the upper side not protruding from the lower side, and the inclination of the flange portion 4 is reduced. In the part, a state in which the contact pressure becomes large appears.

The increase in apparent distance at the reduced height H2 can be solved by increasing the height H1 shown in FIG. This increase in H1 is caused by the ribs 4a functioning as stacking members by abutting against the lower flange surface of the stack.
Can be achieved by increasing the distance by a distance that offsets the apparent decrease in H2. As a result, when they are stacked, the upper and lower contact states have a uniform contact pressure over the entire body, and it is possible to avoid the risk of causing a problem such as breakage.

In the above case, when the flange portion 4 is not provided, it is not necessary to consider the apparent distance of H2, but the rib 4a is required for stabilization and stacking for height adjustment. Further, the flange portion 4 may be made thicker, and may be provided with only the ribs 4a for stacking.

The present invention is not limited to the above-described embodiments, and changes within the scope that can achieve the above-mentioned objects are design items that can be appropriately made by those skilled in the art.
By the way, in the above description, the case where the present invention is applied to a container has been described, but the present invention may be applied to a container having another similar structure.

[0018]

As described above, according to the present invention, containers having three walls and one open side can be vertically stacked without protruding, and can be displaced to a side having no side wall. Since there is no such information, handling and the like can be easily performed at the time of stocking, packing, and display of commodities, and damage due to falling can be avoided.

[Brief description of the drawings]

FIG. 1 is a plan view and a bottom view showing an embodiment of a container of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a left side view of FIG. 1 and a partial cross-sectional view taken along line BB of FIG. 2;

FIG. 4 is a plan view and a bottom view showing a conventional container.

FIG. 5 is an explanatory sectional view showing a state in which conventional containers are stacked.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Bottom plate 2a Short cylindrical part 2b, 2c, rib 3 Side wall 4 Flange part 4a Rib 31 Uneven part

Claims (2)

[Claims] 1. A container characterized in that a container formed to have a substantially rectangular bottom plate with side walls standing up from three sides has a configuration in which a concave / convex portion extends vertically to at least one of the opposing side walls. . 2. A container formed so as to have a substantially rectangular bottom plate with three side walls erected from three sides, wherein at least one of the opposing side walls has an uneven portion extending in a vertical direction, and a stacking member provided on a peripheral edge portion. A container characterized in that the ribs for use have a height that avoids excessive contact between the flange portion and / or the side wall and / or the uneven portion.