The improved device for the regulation of lamas, especially for Majorcan shutters.

摘要

1. perfected for regulating louver, in particular for shutters shutters, comprising a handle formed by two attachable parts including a locking mechanism for fixing the slats to a desired position, said mechanism comprising a pair of device being nestable sprockets each other, and a transmission device formed by a housing including therein a vis-screwless end meshing with a ring gear allowing the movement of the slats characterized in that the screw vis-sin end is driven by a shaft connected at one end to said screw and at the other end to the handle and that vis-free screw end comprises a through broaching that allows input shaft for either ends of the screw .