Conveyors – chutes – skids – guides – and ways – Chutes – Flexible wall
Patent
1993-09-03
1994-12-13
Valenza, Joseph E.
Conveyors, chutes, skids, guides, and ways
Chutes
Flexible wall
193 30, 4141418, 4141431, 414295, 414299, 414397, B65G 1110
Patent
active
053722299
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a device for delivering flowable bulk cargo, said device being of the kind set forth in preamble of claim 1.
BACKGROUND ART
Various systems are known for loading or delivering flowable materials in bulk, the delivering or loading of such materials in those cases creating a considerable amount of dust. According to one of these systems, the loading chute consists of an extensible bellows with internally placed telescope tubes, on the lowermost end of which an outlet cone is secured. The outlet cone is closed by a vertically movable closure cone, and may be opened by lowering this closure cone. According to another system, disclosed in EP-A-0073349, a number of guide cones for the flowable material are used, said guide cones being placed above each other and mutually connected through chains, and are nested in each other in the retracted position of the loading chute. These guide cones for flowable material are placed inside a bellows, to the lowermost end of which the outlet cone is secured. Closing or opening of the loading chute is achieved by means of a separate mechanism at the uppermost end of the loading chute. In the case of damage to one of the parts of the loading chute, e.g. one of its uppermost guide cones for flowable material, it is necessary to remove each and every component from below upwardly in order to replace the damaged element; this requires a great amount of work, hence also a corresponding amount of time and funds.
DISCLOSURE OF THE INVENTION
It is the object of the present invention to provide a device for delivering flowable cargo of the kind referred to initially, which is simple in construction, allows a rapid exchange of worn parts and ensures reliable operation, ensuring also--even when the loading chute is very long in the extended position--a very small height requirement, when the loading chute is retracted.
According to the present invention, the above object is achieved in a device additionally exhibiting the features set forth in the characterizing clause of claim 1. Advantageous embodiments of the device according to the present invention exhibit the features set forth in the sub claims.
The modular construction of the loading chute makes it adaptable to varying conditions simply by inserting or removing modules, and it is especially advantageous that any worn components may be replaced without much effort. To this purpose, a module is advantageously assembled from a guide cone and an outer tube-wall module, each guide cone being connected to the next guide cone above or below through an outer tube-wall module, preferably at the outer ring of each guide cone. The wires or ropes for lowering (extending) and lifting (retracting) the loading chute are placed outside of the outer mantle of the loading chute formed by the outer tube-wall modules, preferably guided in eyes or hooks at each guide cone. This ensures on the one hand that the wires or ropes are placed outside of the dust zone, so that they are not contaminated during the loading operation, and on the other hand that the loading chute may easily be deflected sideways without affecting the parallelism between the cones and the outer tube-wall modules. In connection with the guiding of the wires or ropes it is advantageous to guide these components in conventional swing hooks (i.e. the kind of hooks used for suspending swings used e.g. on childrens playgrounds), such hooks allowing the wires or ropes to be disengaged. This makes it easier to replace worn parts in the intermediate region of the loading chute without having to dismantle each component from below and upwards up to the damaged component.
Preferably three wires or ropes are used for the loading chute, said wires or ropes being evenly distributed about the periphery, i.e. with 120.degree. between them, secured to the lowermost guide cone for flowable material. In order to ensure an exact alignment of the closure cone and the lowermost guide cone for flowable material, the device comprises an adjustmen
REFERENCES:
patent: 3428156 (1969-02-01), Charyn et al.
patent: 3924666 (1975-12-01), Raison
patent: 4727913 (1988-03-01), Bliss
patent: 4821861 (1989-04-01), Shanahan
patent: 5190132 (1993-03-01), Stanelle et al.
Th. Rasmussen Molle- OG Maskinbyggeri A/S
Valenza Joseph E.
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