Transmission device for a vertical blind

Details Transmission device for a vertical blind Transmission device for a vertical blind

E - Fixed Constructions

06

B

E06B 9/322 (2006.01) E06B 9/36 (2006.01)

Patent

CA 2166848

A transmission device for a vertical blind including a housing, a worm disposed within the housing and having an upper flange, a lower flange, and at least two spiral teeth between the upper flange and the lower flange, each of the spiral teeth having an end gradually extending outwardly from the worm, and a worm gear disposed within the housing and meshed with the worm, the worm gear being formed with a partition across a number of teeth.

Dispositif de transmission pour stores verticaux comportant un boîtier, une vis sans fin située dans le boîtier, une bride supérieure, une bride inférieure et au moins deux dents hélicoïdales situées entre les deux brides. L'extrémité de chacune des dents hélicoïdales se prolonge graduellement à l'extérieur de la vis sans fin, et une transmission à vis sans fin située dans le boîtier est en prise avec la vis, alors que la transmission comporte une division sur un certain nombre de dents.

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