Roller and rotational driving device

Details Roller and rotational driving device Roller and rotational driving device

C - Chemistry, Metallurgy

03

B

C03B 35/18 (2006.01) B65G 39/02 (2006.01)

Patent

CA 2562294

The invention relates to a roller (21) from a refractory material, for example in vitreous silica, for transporting a flat article provided at its end with a new arrangement for rotationally driving it as well as to an assembly of such a roller and its driving device. This roller (21) comprises an external surface (2), an inner surface (5) and two side surfaces (12), at least one side surface having indentations (22) parallel to the roller axis (3) and spaced apart from the external (2) and inner surface (5) for receiving rotationally driving pins (8), it is characterized in that at least one of the indentations (22) of the roller is provided with a metal jacket (24). The invention permits to avoid the breakage of the roller around the driving indentations.

L'invention concerne un rouleau (21) constitué d'un matériau réfractaire, tel que de la silice vitreuse, et permettant de transporter un article plat disposé au niveau de son extrémité au moyen d'un nouveau dispositif permettant de l'entraîner en rotation, ainsi qu'un ensemble comprenant ce rouleau et son dispositif d'entraînement. Ce rouleau (21) comporte une surface extérieure (2), une surface intérieure (5) et deux surfaces latérales (12), au moins une surface latérale possédant des évidements (22) parallèles à l'axe du rouleau (3) et espacés desdites surfaces extérieure (2) et intérieure (5), ces évidements permettant de recevoir des tiges d'entraînement en rotation (8). L'invention se caractérise en ce que l'un au moins des évidements (22) du rouleau comprend une gaine métallique (24). Cette invention permet de prévenir la rupture du rouleau autour des évidements d'entraînement.

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