| 摘要 |
<p>A raising and incling mechanism moves two superimposed platforms from a lowered position, with the top one for driving on to a raised position with the bottom one for driving on. There is a rail assembly for platform guidance. This assembly (1) is curved, so as to determine the inclination of at least one of the platforms (2, 3) during movement. It pref. has a top section (5) facing away from the approach, adjoining a bottom upright section (4), both being rigidly connected to the platforms. Construction is simple, and platform movement, when travelled on, is minimal.</p> |
