JPS5940278Y2 - Connector for circular fiber drum - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connector that allows circular fiber drums without a top lid, which are used to store parts, to be stacked.

At present, circular fiber drums (hereinafter simply referred to as drums) as shown in FIG. 1 are often used as containers for dividing, transporting, and storing parts in factories and the like.

This drum 1 has a body part 2 formed by bending fibers of the required thickness into a cylindrical shape, the main material being special moisture-proof kraft paper.
The upper and lower ends of the body 2 are each wrapped with a steel band 3 to form an upper flange 4 and a lower flange 5 to increase mechanical strength.

When forming the lower flange 5, the bottom cover 6 is formed by wrapping the circumferential end of a fiber disk of a required thickness around the lower end of the body 2.

This is because the drum 1 has relatively high mechanical strength. It can also be used for parts with considerable weight.

Since both flanges 4 and 5 of this drum 1 are wrapped around a steel band 4, the tip of the drum 1 inevitably has an arc shape.
If the drums 1 are piled up as they are, there is a risk that even the slightest external force will cause the drums to slip and collapse, so they cannot be stacked, and in order to stack them, they must be stacked with lids on each one. be.

On the other hand, it would be good to attach appropriate locking tools to both flanges 4 and 5 so that they can be stacked, but since the body 2 is made of fiber, welding, which is the easiest way to add more pieces, cannot be done on the drum. The processing of step 1 is troublesome and increases the cost, and if a locking tool is attached, the volume increases.

The present invention was devised to solve these problems, and aims to provide a coupling device that allows drums to be stacked freely, allows easy attachment and detachment of drum plates, and is also inexpensive.

FIG. 2, which shows an embodiment of the present invention, will be described below.

A steel strip with a spacing approximately equal to the width of the flanges 4 and 5 of the drum 1 is folded into an inner diameter that is slightly larger than the outer diameter of the flanges 4 and 5 of the drum 1 (outer diameter of the drum). It is bent to form a short cylindrical connector main body T, and both flanges 4,
This connector 10 is provided with an inter-strip portion 9 having a triangular cross-section and a top portion 8 slightly protruding inward from the outer peripheral edge of the connector 5.

As shown in FIG. 3, this connecting tool 10 is made by fitting the connecting tool 10 onto the upper end flange 4 of a drum 1, and then fitting the lower end flange 5 of another drum 1 into the inner part to connect the two drums 1. Use by stacking.

Further stacking of the drums 1 is carried out in the same manner as described above.

In this case, the connector 10 is connected to the lower drum 1 by the inter-row portion 9.
When the drums 1 are further stacked, the top part 8 of the inter-strip part 9 enters the outer circumferential gap formed by the arc-shaped edges of both flanges 4 and 5 meeting, so that the upper and lower drums 1 can be stabilized and stacked reliably.

In addition, the height of the connector 10 is approximately the same as the combined width of the two flanges 4 and 5, so that it is easy to stack the drums 1 and it takes up less space to store them when not in use. It's convenient and doesn't take much.

Although a steel band is used for the connector main body T in the above embodiment, it is not necessary to use a steel band, and other metals or appropriate synthetic resins may be used.

In the present invention, the flange is placed near the center of the main body of the short cylindrical connector, which has an inner diameter slightly larger than the outer diameter of the upper and lower flange portions of the circular fiber drum, and a height that is approximately the same as the width of both flange portions. This is a circular fiber drum tie having a triangular cross-sectional striation portion whose apex slightly protrudes inward from the outer circumferential edge of the fiber drum and which enters the outer circumferential gap between the two joined flanges, so that it has the following effects.

(1) It is extremely useful when stacking drums because it is easy to attach and detach the drum holder.

(2) It has a simple structure and is easy to manufacture, so it can be provided at low cost.

(3) It eliminates the need for processing to make the drums stackable, thereby preventing an increase in the cost of the drums and an increase in their volume.

[Brief explanation of the drawing]

Figure 1 shows a circular fiber drum, A is a plan view, and the mouth is A-
A is an enlarged sectional view, FIG. 2 is an embodiment of the present invention, A is a plan view, the opening is a BB sectional view, and FIG. 3 is a partially cutaway sectional view of the main part to explain how to use it. It is. 1... Circular fiber drum, 4...
Upper flange part, 5... Lower flange part, 7... Connector main body, 8... Top part, 9... Inter-row part,
10...Connector.

Claims (1)

[Scope of utility model registration request] Near the center of the short cylindrical connector main body, which has an inner diameter slightly larger than the outer diameter of the upper and lower flanges of the circular fiber drum and a height that is approximately the same as the combined width of both flanges, A connecting tool for a circular fiber drum, which is provided with a strip portion having a triangular cross section whose top portion slightly projects inward from the outer peripheral edge and enters into the outer peripheral gap of the two joined collar portions.