External guide for reducing conveyor belt drag

B - Operations – Transporting – 65 – G

Patent

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Details

B65G 15/02 (2006.01) B65G 15/60 (2006.01)

Patent

CA 2339954

An external guide assembly (12) for reducing the frictional drag force acting on a side-flexing modular link conveyor belt (14). The guide assembly (12) is formed from one or more roller assemblies (20) that provide external bearing surfaces for the forward and return runs of the belt (14). The rollers (22) prevent the belt (14) from drifting to the inside of the curve, and thus serve to reduce the frictional drag force between the belt (14) and the guide rail (16) on the outside of the curve. To form the guide assembly (12), pairs of articulated members (30) interconnect the roller assemblies (20) and allow the relative angular position of each to be selectively adjusted for mounting along any curve. The rollers may optionally include a peripheral lip (40) which provides additional support for the guide links (26) of the belt (14).

L'invention concerne un ensemble de guidage extérieur (12) servant à réduire la force de résistance par friction s'exerçant sur une bande transporteuse modulaire à maillons et à flexion latérale (14). L'ensemble de guidage (12) est constitué d'un ou de plusieurs ensembles de rouleaux (20) pourvus de surfaces d'appui extérieures permettant à la bande (14) d'aller en avant et en arrière. Les rouleaux (22) empêchent la bande (14) de dévier vers l'intérieur de la courbe, et servent ainsi à réduire la force de résistance par friction entre la bande (14) et le rail de détour (16) à l'extérieur de la courbe. Pour constituer l'ensemble de guidage (12), des pairs d'éléments articulés (30) s'interconnectent aux ensembles de rouleaux (20) et permettent d'ajuster la position angulaire relative de chacun de façon sélective afin de rendre possible le montage le long de toute courbe. Les rouleaux peuvent comprendre facultativement une lèvre périphérique (40) qui constitue un support supplémentaire pour les guides (26) de la bande (14).

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