Combined boat trailer and launching trolley - has hydraulic jacks for lowering boat into or raising boat cut of water

摘要

The trailer has a chassis (1) supported by two wheels (2) at the rear end of the frame. Two beams (3a) and (3b) are pivoted at the base and joined by a bridge (3c). The beams are supported by means of hydraulic jacks (9) so that they may be lowered or raised together. Each beam has a hammer head (4) which is pivoted about the centre point and held by a tie rod (5). Two horizontal bars (6) support a flexible strap (8) which slings under the hull of the boat. The horizontal bars are fitted with telescopic ends to adjust the straps to the boat length.