Material or article handling – Device for emptying portable receptacle – For emptying contents thereof into portable receiving means
Patent
1990-12-20
1993-04-20
Werner, Frank E.
Material or article handling
Device for emptying portable receptacle
For emptying contents thereof into portable receiving means
220331, 220908, 414408, 414421, B65F 304
Patent
active
052036642
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a waste container for handling with front loading means.
For many years it has been common to make use of containers for collecting waste and in that connection it has been common practice with the emptying of containers to change a filled waste container with an empty container in order to minimize driving. However, this method requires a very large number of containers to minimize the frequency of the emptying the number of containers.
Recently, a new container principle has been realized where the use of smaller containers is made by emptying the smaller containers by using in situ--as use is made of a truck with a larger collecting receptacle which furthermore includes a compacting system so that the collecting receptacle may contain a very considerable amount of waste. Smaller containers are used in order to lighten the handling during the emptying by utilizing lifting arm system with lift-forks at the front end of the collecting vehicle as the container is emptied and upwardly swung and rearwardly across the driver's cab of the vehicle to a emptying position above the collecting receptacle of the vehicle. By this principle smaller containers which are more often emptied involves advantages both regarding the investment requirement and the milieu as it also concerns perishable waste and so called risk related waste.
However, known waste containers for front loading are subject to some constructive disadvantages which contribute both to impede the emptying operation itself and to reduce the practical use of front loading containers. By the known waste containers of the type in question, it is the cover construction which creates problems.
By way of example, a known front loading container is provided with an upper cover having two parts which before the emptying operation has to be manually opened by swinging the respective cover parts upwardly and rearwardly about hinges at the front side and the rear side, respectively, of the container and furthermore by fixing at least one of the cover parts, most often the rearmost cover portion along the rearside of the container in order to prevent the swingable cover part from disturbing the emptying operation when the bottom of the container is turned upwards. Another known front loading container is provided with an upper cover plate member which is hinged along an upper rearside edge of the container which by the emptying of the container causes the cover plate member to extend down into the collecting receptacle and thereby partly counteracting the emptying of the contents of the container. As can readily be appreciated, the last-mentioned front loading container, if the cover plate was just hinged along an upper rearside edge of the container, then the cover plate would be allowed to extend into the collecting receptacle when the bottom of the container is turned upwardly because nothing prevents the cover plate from swinging open in relation to the container. This would result in the cover plate disturbing the emptying operation. Furthermore, this construction of the container causes that the container must be lifted by a extra height by the emptying operation in order to allow the cover plate member to open sufficiently. Furthermore from DK-B1-140 980, it is known, that a container includes a particularly arched cover over an upper emptying opening by which the arched cover is furthermore provided with an guiding means being adapted to cooperate with guiding racks on the trucks. This construction complicates and makes more expensive the container as well as the truck. Finally, it is known a container of the type in question which includes a top end with two-sided inclined sides of which one inclined side is hinge connected along "the roof ridge" so that this inclined side by emptying, automatically is opened. However, also this container involves an inappropriate emptying operation, because an extra height lift that is needed. And the same situation is the case with a waste container known from DE-A1-29 13 436.
SUMMARY
REFERENCES:
patent: 1122902 (1914-12-01), Gassler
patent: 1180292 (1916-04-01), Harris
patent: 4211745 (1980-07-01), Boyd
patent: 4320852 (1982-03-01), Nagelkirk
patent: 4373849 (1983-02-01), Robinson
patent: 4697836 (1987-10-01), Dutkanyeh
patent: 4821902 (1989-04-01), May
patent: 4878596 (1989-11-01), Cawley et al.
Vecto Hydraulic A/S
Werner Frank E.
LandOfFree
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