| 摘要 |
The invention relates to a self-adjusting side roller for a boat trailer. When the keel 19 of the boat presses against the keel roller 8, the supporting bars 9a,9b and the side rollers 7a,7b are swivelled at their ends through the transmision of the swivel members 12a,12b, whilst at the same time the sleeves 10a,10b along the axle 11 of the keel roller 8 are telescoped into the keel roller 8. The reciprocal motion of the supporting bars 9a,9b has been synchronized by means of a synchronizing member 15, the supporting bars 9a,9b always lying at the same angle relative to the trailer chassis 2. <IMAGE> |
