JPH0441110Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an engagement fitting for closing the lid of a large container mainly made of polyethylene and having a mouth at the top.

[Conventional technology]

For the purpose of storing or transporting liquids with a capacity of about 1 ton, such as soy sauce, oil, and other paints.
Conventionally, a cylindrical container with a convex opening made of polyethylene has been used, and the opening provided at the top of this type of container has a lid for opening and closing. As shown in the schematic diagram in FIG. 5, this lid is usually made by having several cross-shaped engaging metal fittings 2 riveted to the upper surface of the lid body 1 at several places, with the tips of the metal fittings facing outward from below. The notch 2b of each leg end 2a is bent in an L shape to protrude in the radial direction.
Although not shown in FIG. 5, a butterfly bolt whose base end is pivotally attached to the periphery of the opening of the container body is fitted inside the container body, and by tightening the butterfly nut from the upper part, the metal fitting 2 is inserted. This is done so that the lid can be closed.

[Problem that the invention attempts to solve]

By the way, the engaging metal fitting 2 provided on the lid of the container described above is usually made of a metal plate with a considerable thickness due to the requirement for strength, which makes it expensive and also increases the weight of the lid. As a result, the work of attaching and detaching the lid body becomes troublesome and inefficient. Furthermore, if the riveted portion 3 becomes loose, it will affect other engaging portions and also cause the problem of rainwater entering.

The purpose of the present invention is to improve the conventional engaging metal fittings used when closing the lid, thereby making it easier to handle and easier to process and install at a lower cost.

[Means for solving problems]

The engaging fitting of the present invention has two or more small holes penetrating through each inner half of several plate-shaped metal fitting bodies, and the inner half is embedded in the flesh of the circumferential part of the lid body. It is characterized by being forced.

[Effect]

In the engaging metal fitting according to the present invention, the inner half of the metal fitting main body is inserted into a predetermined position on the circumference of the molded lid body using an insert means, with the outer half having a notch at the tip protruding outward in the radial direction. It is buried in
In this way, the resin material flows into the small hole penetrating the inner half of the engagement fitting, thereby strengthening the connection between the fitting body and the lid body.

However, when closing the lid, the shafts of wing bolts provided on the container body are fitted into the notches of the engaging fittings, and the wing nuts are tightened from above, thereby closing the lid to the mouth of the desired container. It is uruno.

〔Example〕

Next, an embodiment of the present invention will be described based on the drawings. In Figs. 1 to 4, 11 is a container body molded from polyethylene or other synthetic resin material;
The main part has a cylindrical shape, and a closed mouth part 12 is provided at the upper part, and a discharge part 13 is provided below.
When in use, it is usually entirely surrounded by a box-shaped frame 14, as shown in FIG. 15 is a lid body that is attached to the mouth part 12 through a gasket or the like;
At equal intervals on the circumference of the lid, several metal fitting bodies 17 are protruded, each of which is made of a metal plate and has notches 16 that open in the radial direction at their tips. Two or more small holes 18, 18 into which the resin material forming the lid 15 flows into the inner half 17a.
is provided. Reference numeral 19 denotes recessed portions formed on both sides of the inner half portion 17a of the metal fitting body for engaging the molded resin. 20 is the above-mentioned lid body 1
The mouth part 1 of the container body 11 is made to correspond to the metal fitting body 17 in 5 and to be able to engage with the body notch 16.
The butterfly bolts are provided on the outer periphery of the opening 12, and the bolts are pivoted so that their bases can move up and down between the side pieces 21' of the arms 21 protruding from the periphery of the opening 12. A wing nut 22 can be screwed onto the bolt.

When using the above configuration, the opening 12 of the container body 1
To, the notch 16 of the metal fitting body 17 protruding from the lid body 15
The lid body is made so as to correspond to the butterfly bolt 20 provided around the mouth portion 12, and then the above-mentioned notch 1 is made.
Fit and lock the wing bolt 20 to the wing nut 22.
The lid can be closed by tightening the butterfly.

The metal fitting main body 17 can be formed by inserting the inner half 17a of the metal fitting main body during molding of the lid 15.
As the resin flows into the recesses 8 and 18 and the recessed portion 19, the two are reliably and firmly connected.

[Effect of idea]

According to the present invention, the metal fitting bodies provided at several locations around the circumference of the lid body are not continuous with each other and exist individually at each position on the circumference, so the lid body can be formed compactly. Since the overall weight is reduced, opening and closing operations of the lid body can be performed efficiently. In addition, since the resin material for forming the lid flows into the small hole provided in the inner half of the metal fitting body, the connection between the metal fitting body and the lid body is strengthened, and no studs are used to attach the metal fitting body. This makes it possible to form the lid easily and inexpensively, and furthermore, it is possible to eliminate the problem of the metal fitting body becoming loose with respect to the lid.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a container main body equipped with an engaging fitting according to the present invention in a state of use, Fig. 2 is an enlarged vertical cross-sectional view of the main part, Fig. 3 is a cross-sectional view of the same, and Fig. 4 is a perspective view of the main part of the container in a state of use. FIG. 5 is a plan view of the alloy tool, and FIG. 5 is a perspective view showing a conventional engagement tool. 11 is a container body, 12 is a mouth portion, 15 is a lid body, 1
6 is the notch, 17 is the metal fitting body, 17a is the inner half, 1
8 is a small hole, 19 is a recessed part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cover provided on the mouth of the container body is provided at equal intervals around the circumference, and the notches at the tip protrude radially outward. The engaging metal fitting has two or more small holes penetrating through each inner half of several plate-shaped metal fitting bodies, and the inner half is embedded in the circumferential flesh of the lid. An engagement tool for closing a container lid, characterized by: (2) The engagement fitting for closing a container lid according to claim 1, wherein recessed portions are provided on both sides of the inner half of the fitting body which is embedded within the circumferential portion of the lid.