Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1995-09-25
1998-05-05
Nguyen, Tuan
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
209919, 209930, 232 431, 232 435, 220531, 220909, B07C 704, B65D 9100
Patent
active
057463247
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The subject invention concerns a refuse sorting device to separate refuse and waste being discharged from a refuse chute.
For environmental reasons it has become increasingly urgent in recent years to separate refuse into various categories in order to facilitate the refuse handling, e.g. for recirculation and reclamation. In multistorey buildings equipped with a refuse chute that passes through all the building floors, it has been the practice for several years to use, instead of one single dust bin positioned at the refuse chute mouth in the refuse storage room, a device known as a dust bin shifter or "carousel". The latter device comprises a number of bin bag holders that are arranged to be displaced about a common centre. As the dust bin shifter is rotated one dust bin holder at a time is turned into position underneath the refuse chute mouth for exchange of a filled bag and an empty one.
When a dust bin shifter of this kind is used for category-collection of refuse it has been found to entail not negligible drawbacks. For instance, when a person on one floor of the building wants to throw category-sorted refuse intended for a particular bin bag in the refuse storage room down the chute he or she has to press a button on a keyboard beside the refuse-chute door and wait for the go-ahead signal which will only be emitted when the dust bin shifter has turned to the position wherein the selected bag is presented underneath the chute mouth. More often than not, the necessity to have to wait for the go-ahead as irritating. One consequence often is a diminishing interest for strict category-sorting of refuse.
The term "dust bin" as used herein is intended to be synonymous with refuse container, garbage can or the like.
SUMMARY OF THE INVENTION
The subject invention provides a simple and practical device which highly facilitates category-sorting of refuse and which is extremely reliable.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described in closer detail in the following with reference to the accompanying drawings, wherein:
FIG. 1 is a perspective view of the refuse sorting device in accordance with the invention,
FIGS. 2 and 3 are side views of a container incorporated in the device respectively in closed and open positions, and
FIG. 4 is a view from above of the device in position above some dust bins.
DETAILED DESCRIPTION
The principal component of the device is a container 1 which in accordance with the embodiment to be described in the following is attached to the outer end of a horizontal arm 2. The latter is mounted at the upper end of a movable member 3 of a pillar which by means of a stationary piller member 4 is permanently secured to a support by means of a floor fitting 5. At its upper end the pillar 3, 4 is fitted with a wall attachment 6. The latter supports an electric motor 7. A drive mechanism, which may consist of a chain drive 8, a chain 9 and a sprocket wheel 10 which is securely attached to the movable member 3 of the pillar, is programme-controlled to turn the arm 2 and the container 1 into a position above the selected one of a number of dust bins A, B and K (see FIG. 4). Position transducers 12, 13, 14, 15 and 16 are arranged on the movable member 3 of the pillar and a on a bracket 11 externally thereof in order to bring about these controlled arm turning movements.
The container 1 is an open-top container and at its bottom it is provided with a bottom disc 17, the position of which may be shifted by means of a positioning means 18. The arm 2 preferably is telescopically prolongable for adjustment of the position of the container 1 above a dust bin A, B, K. At its upper rim the container 1 is fitted with an indicting means 19 in the form of a two-prong feeler for detection of refuse being discharged into the container 1.
The basic position of the container 1 always is directly underneath a chute mouth. However, the number of dust bins A, B, K may be varied as may also the extent of refuse sorting. In accordance with the embodiment ill
REFERENCES:
patent: 5031829 (1991-07-01), Shantzis
patent: 5257577 (1993-11-01), Clark
Nguyen Tuan
Smedlund Milsiosystem Ab
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