| 摘要 |
A spring assembly (15) is disclosed for controlling movement of a closure member (such as an independently openable car tailgate rear windscreen (9)) with respect to a body (such as a tailgate (5)) to which the closure member is attached. At least one torsion rod (23a, 23b) is mounted in a housing (17). In one embodiment two torsion rods (23a, 23b) are provided which cross at a mid-point thereof. This is advantageous when the rear windscreen (9) has a curvature, as it allows the curvature of the torsion rods (23a, 23b) to be less than the curvature of the rear windscreen (9). In another embodiment a torsion rod (30) comprises two generally parallel elongate portions (32a, 32b) which are coupled together by co-operating cogs (38a, 38b) to allow the twisting force applied to either one of the elongate portions to be shared equally with the other one of the elongate portions, thereby simulating a torsion rod having twice the length of either of the elongate portions (32A, 32b). |
