| 摘要 |
A vehicle seat having a backrest part (4) hingedly connected to the frame so as to break forwardly about the hinged connection (5) from a normal substantially upright position includes braking means (8) for preventing forward movement of the backrest part (4) about the hinged connection (5) under forces equivalent to less than a predetermined maximum forward force applied to the top of the backrest part (4) but to permit forward movement of the backrest part (4) under greater forces against a reaction provided by the braking means. The backrest part (4) is preferably so constructed that no significant force may be applied to it by the knees of a passenger in a seat immediately behind. For example it may have an aperture (10) in the region which will be immediately in front of the knees of a passenger occupying a seat immediately behind. The aperture may be covered on the front and/or back of the backrest part (4) by a light surface element (11), capable of deformation, detachment or fracture under impact from the knees of a passenger to enable them to pass through the aperture (10) without applying significant force to the backrest part (4). <IMAGE> |
