8.3.7. Hour spring
The hour spring (slip ring) consists of two conducting windings. The spring is established on a steering column and a steering wheel. Thus at rotation of a steering wheel the continuous electric contact between modules of a safety cushion and system of passive safety is made.
For the correct work of an hour spring the steering wheel has to be correctly established on a steering column (combination of the central provision of the operated wheels and an hour spring). Otherwise the hour spring can be damaged.
Fig. 8.43. Hour spring
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Fig. 8.44. Components of an hour spring
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