Guiding system for the externally actuating element of a...

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 33/26 (2006.01) B29C 33/36 (2006.01) B29C 44/42 (2006.01)

Patent

CA 2515527

The invention relates to a guiding system for the externally actuating element of a closing unit. The inventive system is mainly used for connecting a tool to a closing unit. Said closing unit (12) carries out a motion in a given direction (D) during the operation thereof, and the externally actuating element (14) displaces at least between two positions during said motion. Said externally actuating element (14) comprises a guiding element embodied in the form of a cam roller (24) which rotates on a supporting structure (26-40) in order to attain at least one of the positions during the movement of the closing unit (12). In order to avoid any excessive wear and ease a maintenance service, at least one section (30) of the supporting structure (26-40) is provided with at least one freely movable supporting roller (40) whose respective axis is tangential with relation to the displacement direction (D) of the closing unit (12) in such a way that the cam roller (24) of said externally actuating element (14) rotates possibly without sliding friction on the supporting roller (40).

L'invention concerne un système de guidage d'un élément à commande externe d'une unité de fermeture. Ce système est notamment destiné au raccordement d'outil d'une unité de fermeture. Lors de son fonctionnement, l'unité de fermeture (12) exécute un mouvement dans une direction donnée (D) et, lors de ce mouvement, l'élément à commande externe (14) se déplace au moins entre deux positions. L'élément à commande externe (14) présente un élément de guidage se présentant sous la forme d'un galet de roulement (24) qui tourne sur une structure support (26 - 40) pour atteindre au moins une des positions lors du mouvement de l'unité de fermeture (12). Pour éviter toute usure excessive et permettre un entretien facile, au moins une section (30) de la structure support (26 40) comporte au moins un rouleau support (40) à déplacement libre et dont l'axe respectif est sensiblement tangentiel à la direction de déplacement (D) de l'unité de fermeture (12) de telle manière que le galet de roulement (24) de l'élément à commande externe (14) tourne sensiblement sans friction de glissement sur le rouleau d'appui (40).

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