| 摘要 |
Highly visible detented light mounts for trucks or trailers have light fixtures of selected configurations coupled by rotatable arms to rigid, tubular stands. Each stand is axially biased to a rigid, tubular spring housing by an internal core-drilled fastener that coaxially secures an internal spring. The stand and spring housing can have different lengths and configurations. A pair of friction washers, one on the stand and the other on the housing, mutually abut. Protrusions on one washer register with corresponding dimples or depressions on another washer to cause a detent effect. The housing and the stands may in each embodiment be torsionally displaced against friction caused by the spring biased washers that interfit to form radially spaced-part semi-fixed "detented" positions. Various washer configurations are proposed. |
