OREINTING ARRANGEMENT FOR MIRROR OR LIGHT SOURCE

摘要

An arrangement for orienting a device angularly, such as an outside rear view mirror for a motor vehicle, is provided with a back element on which the device to be oriented is installed. The back element has a first portion of a coupling element, which may be in the form of a ball, and a first spherical gear arranged concentrically in relation to the first portion of the coupling element. A base portion having a second portion of the coupling element, which may be a corresponding socket, engages with the first portion (the ball) of the coupling element. In addition, a motor having a rotatory shaft is installed on the base portion, and a worm drive element is installed on the rotatory shaft and arranged to engage the first spherical gear when the first and second portions of the coupling element are engaged with each other. The motor enhances the rigidity of the base portion. The engagement between the worm drive element and the first spherical gear is arranged to disengage in response to the application of a force through the first spherical gear, and may include an intermediate structure, such as worm gear-worm combination element.