Tubular core assemblies for rolls of paper or other sheet...

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 75/10 (2006.01) B65H 75/18 (2006.01) B65H 75/22 (2006.01) B65H 75/30 (2006.01)

Patent

CA 2248951

An annular end member (14) of plastic material for insertion into an end portion of a hollow cylindrical core member (12) of a tubular core assembly for a roll of paper or other sheet material has an outer annular surface securable to an inner annular surface of the core member (12) and an inner annular surface shaped to receive a roll supporting chuck. A radially- projecting lug (18) adjacent an end of the end members (14) is engageable in a lug-receiving notch (20) in the core member (12), and a plurality of circumferentially - spaced axially - extending channels (22) are provided in the inner annular surface of the end member (14) to receive radially outwardly movable portions of a chuck. The channels (22) have side walls (24, 26) engageable by the radially moveable chuck portions to enable rotational movement of the chuck to be transmitted to the end member (14). The end member (14) can be constructed so as to be a universal fit on various different types of chuck.

Un élément terminal annulaire (14) en matière plastique, conçu pour être introduit à l'intérieur d'une partie terminale d'un élément de mandrin cylindrique creux (12) d'un ensemble mandrin tubulaire destiné à un rouleau de papier ou d'un autre matériau en feuilles, possède d'une part, une surface externe annulaire qui peut être fixée à une surface interne annulaire du mandrin (12) et d'autre part, une surface interne annulaire dont la forme lui permet de loger un support de rouleau de papier. Un talon (18), qui fait saillie radialement à proximité d'une extrémité des éléments terminaux (14), peut s'engager à l'intérieur d'une entaille (20) du mandrin (12) conçue pour loger ledit talon, et la surface interne annulaire de l'élément terminal (14) est munie d'une pluralité de gorges axiales, espacées suivant la circonférence, qui reçoivent des parties du support susceptibles de se déplacer radialement vers l'extérieur. Ces gorges (22) ont des parois latérales (24, 26) avec lesquelles les parties du support radialement mobiles peuvent entrer en contact de façon à transmettre le mouvement rotatif du support à l'élément terminal (14). Cet élément terminal (14) peut être conçu de façon à s'adapter, de manière universelle, à divers types de supports de rouleaux.

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