Ring binder mechanism

Details Ring binder mechanism Ring binder mechanism

B - Operations, Transporting

42

F

B42F 13/26 (2006.01)

Patent

CA 2505574

The invention relates to a ring binder mechanism for housing perforated documents. The ring binder mechanism comprises a housing (10) with spring elastically flexible housing flanks (28). Two carrier rails (20) are arranged within the housing (10), which may be pivoted towards each other by the spring action of the housing flanks (28) in the manner of an elbow joint in the region of the longitudinal edges thereof which face each other. At least two half rings (16), which pair-wise form a ring (14), are rigidly connected to the support rails (20) at defined longitudinal separations from each other. At least two locking elements (32), operated by means of an actuating element (18) and a tie rod (44), are further provided, which engage in a free space (34), formed between the carrier rails (20) and a housing wall (13), in the locked position, with locking of the pivoting movement of the carrier rails (20) and which release the pivoting path about the joint axis (22) in the opened state, whereby the locking elements (32) are pre-tensioned in the closing direction by the action of a closing spring (36). According to the invention, only one single tie rod (44) is provided, the tie rod comprising several dogs (201), each of which is provided for cooperating with one of the locking elements (32).

L'invention concerne un mécanisme de reliure à anneaux destiné à recevoir des documents perforés. Ce mécanisme de reliure à anneaux comprend un corps (10) présentant des flancs à flexion élastique (28). Ce corps (10) comporte deux rails support (20) pouvant être pivotés l'un vers l'autre à la manière d'une genouillère au niveau de leurs bords longitudinaux opposés sous l'effet ressort desdits flancs (28). Au moins deux demi-anneaux (16), placés à une certaine distance l'un de l'autre dans le sens de la longueur et formant à deux un anneau (14), sont solidement reliés aux rails support (20). Ledit mécanisme comporte également au moins deux éléments de verrouillage (32) pouvant être actionnés par l'intermédiaire d'un organe d'actionnement (18) et d'un élément de traction (44), lesquels éléments de verrouillage s'engagent, en position de fermeture, dans un espace libre (34) formé entre les rails support (20) et une paroi de corps (13) de façon à bloquer le mouvement de pivotement des rails support (20) et, en position d'ouverture, libèrent le chemin de pivotement autour de l'axe d'articulation (22), lesdits éléments de verrouillage (32) étant précontraints dans le sens de fermeture sous l'effet d'un ressort de fermeture (36). Selon la présente invention, ledit mécanisme comporte un seul élément de traction (44) présentant plusieurs taquets (201) auxquels est associé un des éléments de verrouillage (32).

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