| 摘要 |
<p>A fixing for street furniture, eg a traffic light, includes three bushes 17,18,19 mounted on a common axis 22. Relative rotation between the bushes, after a desired position has been selected, is prevented by projections 37 on bush 19 engaging recesses 24 on bush 17. The projections are narrower than the separations between the recesses whereby in the event of an impact, eg from a vehicle, the projections are broken and relative rotation is permitted. Repair hence necessitates replacing only the bush 19. A projection 39 on bush 19 engages arcuate recess 32 in bush 18 to allow arcuate adjustment of the fitting (see Figure 2).</p> |
