DEVICE FOR CONTROLLING THE INSERTION OF WASTE INTO WASTE CONTAINERS

Abstract

 A device for controlling the insertion of waste into waste containers, comprising two half-drums (4) inserted coaxially and rotatingly one inside the other, each half-drum comprising two side walls (1) between which a semi-cylindrical wall (2) is fixed, whereby mechanical fixing elements (3), such as screws, rivets, stud bolts with nuts, projecting pins are provided to perform the mechanical fixing between the aforesaid walls (1,2).

Description

BACKGROUND OF THE INVENTION

[0001] The present invention relates to an improved device for the insertion of waste into a respective container.

[0002] The field of the invention is that of devices used to control the mouth of waste containers, for the purpose of closing them in relation to the outside, while allowing the freedom to insert waste through this mouth.

[0003] The aforesaid devices consist of two half-drums, one having a larger diameter and one having a smaller diameter, housed coaxially and relatively rotatingly one inside the other. The mutual rotation between the aforesaid half-drums first causes the opening of the mouth towards the outside of the device, so as to allow the waste to be loaded into the half-drums, then the closing of the mouth towards the outside and the opening thereof towards the inside of the container, so as to allow the waste to be inserted or unloaded into the latter.

[0004] Conventionally, the semi-cylindrical wall of the aforesaid half-drums is welded directly onto the edge of the side walls of the half-drums, which makes it necessary to produce said wall in a thin sheet metal, cut and calendered, in which the welds cause internal stresses. The half-drums have the drawback of having a certain torsional flexibility, responsible for malfunctions during their relative rotation.

SUMMARY OF THE INVENTION

[0005] The main object of the present invention is to provide a device of the aforesaid type which, unlike similar prior art systems, has greater structural rigidity, suitable to offer greater functional reliability.

[0006] This and other objects are achieved with the device of claim 1. Preferred embodiments of the invention are indicated in the remaining claims.

[0007] In comparison with conventional devices, the device of the invention offers the advantage of having a greater structural rigidity, achieved by the possibility of producing the semi-cylindrical wall of the half-drums with materials other than sheet metal, in particular aluminium, preferably by producing the same semi-cylindrical wall as a composition of a plurality of rigidly coupled interlocking segments.

BRIEF DESCRIPTION OF THE DRAWINGS

[0008] These and other objects, advantages and features become apparent from the description below of some preferred embodiments of the device of the invention, illustrated by way of non-limiting examples in the figures of the accompanying drawings,
wherein:

• Fig. 1 illustrates a plan view of the semi-cylindrical wall of a half-drum of the device of the invention;
• Figs. 2 and 3 illustrate one of the two side walls of the half-drum of the device of the invention;
• Fig. 4 illustrates a perspective view of a half-drum of the device of the invention;
• Figs. 5 and 6 illustrate the detail of the coupling of the semi-cylindrical wall to the side walls of the half-drum of Fig. 4;
• Figs. 7 and 8 illustrate an alternative embodiment of the device of the preceding figures.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] One of the two half-drums of the device of the invention is indicated as a whole with the reference numeral 4 in Fig. 4. It consists of two disk-shaped side walls 1, to the edge of which the semi-cylindrical wall 2 is fixed.

[0010] According to the invention, the aforesaid fixing is performed by means of mechanical elements, such as screws 3 in Fig. 6, provided at the edges for mutual coupling of the aforesaid walls 1 and 2 of the half-drum 4. In place of the screws 3, rivets, stud bolts with relative nuts, or pins or other projections, suitable to produce the interlocking engagement between the walls 1 and 2, could be used.

[0011] The semi-cylindrical wall 2 can be made in one piece, or as a composition of several segments 5 with an arch section, better visible in Fig. 7, which interlockingly mutually engage at their contiguous edges 6 and 7. Advantageously, the aforesaid segments 5 are made of aluminium.

[0012] In the variant of Figs. 7 and 8, the side walls 1 of each half-drum are obtained by the composition of two semi-circles 8.

Claims

1. A device for controlling the insertion of waste into waste containers, comprising two half-drums (4) inserted coaxially and rotatingly one inside the other, each half-drum comprising two side walls (1) between which a semi-cylindrical wall (2) is fixed, said device being characterised in that it comprises mechanical fixing elements (3) between said walls (1,2); said mechanical fixing elements (3) consisting of screws, rivets, stud bolts with nuts, projecting pins and the like; said semi-cylindrical wall (2) being formed by a plurality of segments (5); the contiguous edges (6,7) of mutually coupled segments (5) being structured so as to produce a mutual interlocking coupling.

2. The device according to claim 1, characterized in that said segments (5) are made of aluminium.

3. A waste container, characterized in that it is provided with at least one device according to one or more of the preceding claims.

Drawing