| 摘要 |
The device is provided for towing or pushing the unit (1), which in its front part is provided with fixtures for moving the unit along a surface. The unit is supported by a number of wheels (6) fitted on axles. In or adjacent to the front parts of the framework and the ramp structure is a sprung and activatable component (15). This component, when a load is applied exceeding a predetermined value, springs downwards and with a load which is less than the predetermined value it is activated to regulate a reciprocal angle position between the framework two frame constructions (2a, 2b). The ramp structure with a first group of rollers (21-23) can move a boat hull along it and a winch arrangement (30) can move the ramp structure in both directions. |
