Arrangement In Installations For Collection Of Garbage And Other Refuse

Abstract

An apparatus for the collection of garbage in outer receptacles having rigid sides in a truncated sector or trapezoidal cross section, arranged to detachably hold an inner bag-shaped container and locking means to hold said inner bag-shaped container within said outer receptacles, said locking means comprising an extension of the narrowmost side of said outer receptacle having a plate pivotally mounted thereon above the upper rim of said receptacle, said plate extending slightly below the upper rim of said receptacle and having legs of a certain resilience attached thereto adjacent to its lower edge and adjacent to the sides of said outer receptacle which extend substantially along at least two rims of said outer receptacle, said pivotable plate and legs when in the downwardmost position frictionally engaging said outer receptacle along at least three rims thereof.

Description

The present invention relates to installations for collection of garbage and other refuse and of the type comprising receptacles of steel or other suitable material arranged in fixed position one at the side of the other, each receptacle designed to detachably support an inner bag-shaped container of plastic material or paper by means of locking means of such a kind and of such a design that in operating condition it gives the inner container inserted into the outer receptacle a shape in any case substantially corresponding the shape of the outer receptacle.

It is an object of the invention to provide an improved locking means for the inner bagshaped container, facilitating the fastening of empty bags as well as the loosening of filled bags.

Another object of the invention is to provide greater possibilities to avoid that garbage unintentionally escapes over the rear rim of the outer rigid receptacle.

The improved arrangement is characterized by the locking means of the inner bagshaped container being pivotally arranged around a joint located at the rear of the outer receptacle above the rim thereof, and by the rear portion on said means being shaped as a plate, to which legs, having a certain resilience, are connected in such a way that the locking means forms a closed unit and in an in itself known manner by means of friction holds the inner container in fixed position to the inside of the outer receptacle.

The accompanying drawings illustrate an embodiment of the invention and the following description deals with details thereof as well as with additional characteristics of the invention.

FIG. 1 is a perspective view of an example of an installation according to the invention, where a number of receptacles are arranged one at the side of the other on a circular platform.

FIG. 2 is a perspective view of a receptacle for garbage entering into the assembly, the interior container being hinted.

FIG. 3 is a cross-sectional view along the line III--III in FIG. 2.

FIG. 4 is a cross-sectional view along the line IV--IV in FIG. 2.

The illustrated installation for collection of garbage will now be briefly described with reference to FIG. 1. A circular platform 10 is rotatable around a centric shaft not shown and supports (carries) a number of garbage receptacles 11 of steel or other rigid material substantially of conical design and located in an arrangement one at the side of the other. The outward facing end of each receptacle 11 is formed as a door 12. The respective door 12 of two adjacent receptacles is pivotable in opposite directions around a common axis 13. The lower edge of each door 12 in closed condition bears against the rear side of an upright flange 14 of the platform 10. By the door, being carried on the axis 13 by means of vertically displaceable sleeves 15, it is possible to open it by an upwards directed force being applied on the handle 16 in FIG. 1 as indicated by the arrow F. Near its lower hinge bush 15 the door 12 is chamfered at 17, the door 12 thereby in opened condition being pivotable a certain distance. The door mechanism described is of essential importance, which will be more evident in connection with the description of the functioning of the installation.

The garbage can be manually fed into the installation or via a guiding drum 18, which is in connection with a chute 19 in a building. However, the receptacle 11 is not directly receiving the garbage, as for this purpose each receptacle 11 is provided with a bag-shaped inner container 20 made of plastic material, paper or any other suitable material, which by means of locking means can be fixed within the receptacle 11 during the filling phase and which in filled condition can be removed from the receptacle 11 and be substituted by an empty bag. The inner container 20 has substantially the same outer dimensions as the inner dimensions of the outer receptacle 11, but vertically it extends preferably above the upper rim of the respective receptacle 11.

As best can be seen in FIG. 2 which illustrates a single outer receptacle 11 in which an inner container 20 has been inserted, the rear wall 21 of said receptacle 11 is provided with a plate 22 extending along the whole or a portion of the length of the wall 21 and which vertically extends above the upper rim of the outer receptacle 11. The plate 22 by this arrangement constitutes a prolongation of the rear wall 21 of the receptacle 11. Reinforcing means 23, 24 are arranged perpendicularly relative to each other in order to support the plate 22. At the upper end of the plate 22, which end is facing the center of the outer receptacle 11, a hingelike means 25 is attached with one of its ends. The opposite side of the means 25 is attached to the upper end of a bracket plate 26, which thereby is pivotable a certain angle around the joint 25 located above the upper rim of the outer receptacle 11. The bracket plate 26 is rigidly connected with legs 27 arranged at its lower portion, which legs have the shape of fairly narrow flat bars and which have a certain resiliency. The legs 27 form a closed unit, which substantially corresponds the inner contour of the receptacle 11. By the legs 27, which in operating condition bear level to the upper rim of the receptacle 11 or preferably slightly below said rim, being connected with the bracket plate 26, said plate 26, said plate 26 and the legs form a unit constituting the locking means, which is pivotable from an operating position (FIG. 2) to a resting position (FIG. 1).

When inserting an empty inner container 20, which is open at its top, in the outer receptacle 11, the locking means 26, 27 has been manually pivoted occupying a folded up position (FIG. 1). The upper edge of the container 20 thereby extends above the upper rim of the receptacle 11 (FIG. 2). When the locking means (26,27) is pivoted downwards, it will arrive in a position inside the upper portion of the bag 20, thereby pressing the bag 20 to bear against the inside of the outer receptacle 11. By said receptacle 11 being provided with warts 28 or other means (elements) increasing the friction, the inner container 20 is firmly retained irrespective of the garbage being manually fed to this container or it being fed via the guiding chute 18. In the last mentioned case the stress on the inner container is substantially greater. Still greater stresses arise in those cases, when an installation according to the illustrated embodiment is provided with means for compressing the garbage in each container, it therefore being an important requisite that the locking means 26,27 function in a most efficient manner, and as tests carried out under practical conditions have proved, the arrangement according to the invention gives a most satisfactory performance under all conditions.

The suspension of the doors 12 described in connection with FIG. 1 is of importance, especially when said hinted means, not shown in the drawings, for compressing the garbage are used, as in such a case it is evident that comparatively large stresses directed sidewise will arise.

The legs 27 of the locking means are arranged in operating condition to press the inner container 20 against stopping elements 29 of the outer receptacle 11, on top of which stopping elements also the legs 27 rest.

As can be seen in FIG. 4 the element 26 in the embodiment illustrated does not take part in holding the inner container 20, this only being done by the legs 27 by means of the warts 29 and also by means of the stopping elements 29.

The extension plate 22 contributes to preventing the garbage from spilling out unintentionally over the rear rim.

Claims

What I claim is:

1. An apparatus for the collection of garbage in outer receptacles having rigid sides in a truncated sector or trapezoidal cross section, arranged to detachably hold an inner bag-shaped container and locking means to hold said inner bag-shaped container within said outer receptacles, said locking means comprising an extension of the narrowmost side of said outer receptacle having a plate pivotally mounted thereon above the upper rim of said receptacle, said plate extending slightly below the upper rim of said receptacle and having legs of a certain resilience attached thereto adjacent to its lower edge and adjacent to the sides of said outer receptacle which extend substantially along at least two rims of said outer receptacle, said pivotable plate and legs when in the downwardmost position frictionally engaging said outer receptacle along at least three rims thereof.

2. The apparatus of claim 1 wherein said pivotable plate and said legs encompass all rims of said outer receptacle.

3. The apparatus of claim 1 wherein said outer receptacle is provided with at least one inner extension on at least one side of the topmost part thereof which engages with said pivotable plate and legs in said downwardmost position.

4. The apparatus of claim 1 wherein the top of said outer receptacle on its narrowmost side has detents which cooperate with detents on said pivotable plate.

5. The apparatus of claim 1 wherein said legs extend along at least two sides of said outer receptacle along their top when said pivotable plate is in its downwardmost position.