| 摘要 |
A boat is transported on a trailer (2) which has a frame chassis (4) with mounted on it several wheels (5-7), supports (8,8') for the stern of the boat, and a support (9) for the aft of the boat. The supports are height adjustable, one of which (8) comprises a support plate which is lowered or raised by a piston and cylinder device (81), whilst the others (8',9) include a band, hawser or strap. |
