| 摘要 |
A car roof rack, where the load carrier (4) can be pulled for instance to the side from the top of the support frame (2). In the prior art solutions used for similar purposes, the problem has been on one hand the remarkable elevating power required in the lifting of the loaded carrier, and on the other hand the simultaneous accuracy required in positioning the carrier on top of the support frame. The problem is solved by arranging in the profile (7) of the support frame (2) a carriage (8) with a U-profile shape, which carriage is provided with two pairs of rollers (14, 15), resting on which it is free to move along the support frame. The profiles (11) of the load carrier (4) are pivotally attached to one end of the carriage, on the axis of the second pair of rollers (14), and supported by means of support bars (5) against the opposite end of the carriage. The support bars (5) are journalled onto the axis (13) of the first pair of rollers (15), which axis (13) is free to move along the aperture (18), provided in the longitudinal direction of the carriage, whenever the load carrier is lowered down onto the side of the car or lifted up from the side. By the aid of this arrangement, the above mentioned accuracy requirements have been eliminated, because accuracy is automatically taken care of by the support bar and the carriage. On the other hand, inside the carriage, in between the axes (12) and (13) there is arranged a gas cylinder which helps in the lifting of a loaded roof rack. |
