Interlock mechanism for lateral file cabinets

E - Fixed Constructions – 05 – B

Patent

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Details

E05B 65/46 (2006.01)

Patent

CA 2507680

The invention relates to interlocks for file cabinets and the like which generally prevent more than one drawer from being opened at a given time. The interlocks include a cable which is changeable from a slack condition to a taut condition. In the taut condition, the interlocks prevent the associated drawer from being opened. In the slack condition, the interlock allows the associated drawer to be opened. The interlocks may be used in conjunction with a lock that selectively changes the tension in the cable from a slack condition to a taut condition and vise versa. The interlocks may be constructed to exert a tension on a cable that is independent of the pulling force exerted on a locked drawer. Alternatively, the interlocks may be constructed to exert a force on the cable that is a small fraction of the pulling force exerted on a locked drawer.

L'invention concerne des dispositifs de verrouillage pour classeurs et analogues, généralement destinés à empêcher que plus d'un tiroir s'ouvre à un moment donné. Le dispositif de verrouillage comprend un câble pouvant être successivement lâche, puis tendu. A l'état tendu, les dispositifs de verrouillage empêchent les tiroirs associés de s'ouvrir. Lorsque le câble a du lâche, le dispositif de verrouillage permet l'ouverture des tiroirs associés. Les verrouillages peuvent être utilisés conjointement avec un verrouillage qui change sélectivement la tension du câble de façon que celui-ci passe de lâche à tendu, et vice-versa. Les verrouillages peuvent être construits de manière à exercer une tension sur un câble, indépendante de la force de traction exercée sur un tiroir verrouillé. En variante, les verrouillages peuvent être construits de manière à exercer sur le câble, une force qui soit une faible fraction de la force de traction exercée sur un tiroir verrouillé.

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