Nose pad assembly for an eyeglass frame

Details Nose pad assembly for an eyeglass frame Nose pad assembly for an eyeglass frame

G - Physics

02

C

G02C 5/12 (2006.01)

Patent

CA 2480602

A nose pad assembly is slidably mounted to an eyeglass frame by which a pair of multifocal lenses are held. The nose pad assembly includes a pair of oval nose pads within which elongated guide grooves are defined. Two pairs of upper and lower magnets are coaxially and fixedly mounted in the upper and lower ends of the respective nose pads. A pair of slides are slidably moved along the guide grooves and attached to a pair of pad arms of the eyeglass frame. The slides include a corresponding pair of slide magnets positioned within the respective guide grooves. The slide magnets are selectively attracted to the upper and lower magnets to hold the eyeglass frame in its upper and lower positions, respectively. A bridge member extends between the upper end of the nose pads. The bridge member is configured to resist a substantially vertical force which may be applied thereto when the eyeglass frame is moved between its upper and lower positions. The bridge member is free to flex in a substantially horizontal direction so that orientation of the nose pads can readily be adjusted.

Ensemble de plaquettes coulissantes fixées à une monture de lunettes à verres multifocaux. L'ensemble de plaquettes de lunettes comprend deux plaquettes ovales dotées d'une rainure de guidage. Un aimant supérieur et un aimant inférieur sont montés de manière fixe et coaxiale à l'extrémité supérieure et à l'extrémité inférieure de chacune des plaquettes. De chaque coté, une pièce coulissante se déplace le long de la rainure de guidage et se fixe au bras de la plaquette de la monture de lunettes. Chacune des pièces coulissantes comprend deux aimants coulissants positionnés à l'intérieur de la rainure de guidage correspondante. Les aimants coulissants sont attirés de façon sélective aux aimants supérieurs et inférieurs pour tenir la monture de lunettes à sa position supérieure ou inférieure, respectivement. Un pont relie les extrémités supérieures des plaquettes. Le pont est configuré de façon à résister à une force verticale importante qui peut lui être appliquée lorsque la monture de lunettes est déplacée de l'une à l'autre des positions. Le pont peut fléchir librement dans un sens essentiellement horizontal, de sorte que l'orientation des plaquettes peut être facilement réglée.

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