JP2532761Y2 - Transport container - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a transport container, particularly a synthetic resin transport container with low noise when transporting a conveyor.

(Prior art)

Many synthetic resin containers employ a large number of rib structures in order to reduce the weight and to increase strength and cost. The bottom wall of the container is also known to be composed of a large number of grid-like ribs only, or of a structure in which a grid-like rib is connected to a flat wall portion having no through hole and a lower surface of the flat wall portion. I have.

In some cases, the transport container is transported by a roller conveyor. In this case, the lattice ribs and the rollers of the roller conveyor frequently contact or collide with each other, thereby generating a large noise. This noise made the working environment worse, and it was desired to improve it.

As one of the solutions, the ribs in one direction among the intersecting grid-like ribs are made higher than the ribs in the other direction, and the direction of the high ribs is set to the direction orthogonal to the rollers of the roller conveyor when the roller conveyor is transported. The orientation of the container was adjusted so as to be used. According to this method, the noise can be temporarily reduced, but the orientation of the container must always be aligned, and if the orientation is not appropriate, the high ribs will collide strongly with the rollers, resulting in higher noise than ever before. This caused the water to fall off the conveyor, which was extremely inconvenient to handle. Further, there is a drawback that the high ribs wear during use and their effects disappear.

[Issues to be solved by the invention]

It is an object of the present invention to provide a synthetic resin transport container which does not generate noise when the container is transported by a roller conveyor, has a long-lasting effect, and has a strong bottom wall structure.

[Means for solving the problem]

The transport container according to the present invention for solving the above-mentioned problem has four side walls and a bottom wall, and has a rib structure on the outside of the bottom wall, and the rib structure is provided on a side wall opposed to an orthogonal or oblique lattice-like rib. At least two conveyor guide ribs whose lower surfaces provided in the direction perpendicular to each other are smooth surfaces continuous from one end to the other end, and the width of the conveyor guide rib is larger than that of the lattice-shaped rib, and A hollow portion.

Further, by making the inside of the above-mentioned conveyor guide rib hollow, it is possible to prevent deformation due to sink in the wall due to cooling during injection molding. It is preferable to make the conveyor guide rib hollow by employing a gas injection injection molding method. It also helps to reduce weight.

It is preferable that the conveyor guide ribs have the same height as the other grid-like ribs, and two sets of a direction perpendicular to one opposing side wall and a direction perpendicular to the other opposing side wall.

〔Example〕

FIG. 1 is a perspective view showing an embodiment of the present invention in which a container is turned upside down, and FIG. 2 is a sectional view taken on line I- of FIG. 1 when the container shown in FIG. 1 is placed on a roller 10 of a roller conveyor. It is a figure showing a section along an I line.

The illustrated container is a rectangular synthetic resin transport container having four side walls 1, 2, 3, 4 and a bottom wall 5, and as shown in FIG. Two conveyer guide ribs 6 provided in a direction perpendicular to the side walls 1 and 2 opposed to a large number of lattice ribs 8 protruding from the lower surface of the flat plate portion 9 and two convey guide ribs 6 in a direction perpendicular to the conveyor guide ribs 6. Conveyor guide rib 7.

Conveyor guide ribs 6 and 7 have smooth surfaces 6 'and 7', the lower surfaces of which are continuous from end to end, and have hollow portions 6 ", 7" (where 7 "shown in FIG. (Not shown). The gas inlet 12 is formed to form the hollow portions 6 "and 7", but this is not a problem in use. However, water and dust are prevented from entering the inside. To prevent this, the inlet 12 may be plugged and sealed.

[Effect of the invention]

The transport container according to the present invention has a rib structure of the same height as the whole bottom wall structure and a wide and lower surface provided with conveyor guide ribs having a smooth surface from end to end. Are in constant contact with each other, so that almost no noise is generated when the containers are transported on the conveyor.

In addition, since the inside of the conveyor guide rib has a hollow structure in order to eliminate a thick portion due to the wide width, a molding defect such as sink and warpage during molding does not occur, and the strength can be increased.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an inverted state of the container of the present invention, and FIG.
The figure shows I in FIG. 1 when the container is placed on a conveyor.
It is sectional drawing which shows the cross section along the -I line. 1,2,3,4 ... side wall, 5 ... bottom wall, 6,7 ... conveyor guide rib, 6 ", 7" ... hollow part, 8 ... lattice rib, 10 ... roller.

Claims (1)

(57) [Scope of request for utility model registration] 1. A transport container comprising four side walls and a bottom wall, wherein the bottom wall has a rib structure on an outer surface thereof, and the rib structure is orthogonal to the side wall facing the orthogonal or oblique lattice rib. At least two conveyor guide ribs whose lower surface is a smooth surface continuous from end to end, the width of the conveyor guide rib being larger than that of the grid-like rib, and a hollow portion therein. A transport container made of synthetic resin, comprising: