| 摘要 |
<p>A carrier system for a mobile device positionable in various directions (D, D') in space, such as a directive light source (2) comprising a trolley (1) which can move along a guide ramp (3). This ramp is made up of two helical rails (5) turning about a given longitudinal axis (4), while the trolley (1) is made up of a pair of axles (7a, 7b) with parallel axis holding the ramp (3) between them, each axle been made up of a central body (8) engaging with an associated face of the ramp by means of wheels (9) capable of running said ramp and guiding the axles when they move along the ramp, with which they are held in contact by means of elastic connecting means pulling them towards each either. Light source (2) is fixed to central body (8) of axle (7b), this central body being coupled in rotation with wheels (9) of this axle.</p> |
