E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 9/322 (2006.01) E06B 9/262 (2006.01)
Patent
CA 2211396
The operating device comprises an input shaft (20) which by one end is connected with a driving means with a rotatable wheel (17) for receiving an endless cord (8), and which by the other end is coupled to an output shaft (14) which is connected in a rotationally locked manner with the screening arrangement. The input shaft (20) is connected with the output shaft (14) via a transmission shifting device, in particular a planet gear (21). Between the transmission shifting device and the output shaft, a mechanism is engaged for limitation of the transferred driving torque. This mechanism is constituted by a sliding clutch comprising a first coupling part (25) in connection with the transmission shifting device (21) and a second coupling part (26) in connection with the output shaft (14). The first coupling part (25) may comprise a toothed shaft (24) and the second coupling part (26) a slotted and toothed rim (27), or vice versa. Furthermore, a braking means is provided for retaining the screening arrangement in an arbitrary position.
Dispositif de manoeuvre comprenant un arbre primaire (20) qui est raccordé à une extrémité à un dispositif d'entraînement à poulie (17) pour recevoir un cordon sans fin (8) et qui est couplé à l'autre extrémité à un arbre secondaire (14) qui est raccordé de manière rotationnelle au store en position de verrouillage. L'arbre primaire (20) est raccordé à l'arbre secondaire (14) au moyen d'une transmission, en particulier d'un engrenage planétaire (21). Entre la transmission et l'arbre secondaire, un mécanisme est engagé pour limiter le couple d'entraînement. Ce mécanisme comprend un clabot coulissant constitué d'une première partie (25) raccordée à la transmission (21) et d'une deuxième partie (26) raccordée à l'arbre secondaire (14). La première partie (25) peut comprendre un arbre cannelé (24) et la deuxième partie (26), une jante à fentes cannelée, ou vice versa. De plus, un dispositif de freinage est ajouté pour retenir le store dans une position arbitraire.
Borden Ladner Gervais Llp
V. Kann Rasmussen Industri A/s
Vkr Holding A/s
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