| 摘要 |
A clamp bolt assembly for a clamping mechanism, particularly for an adjustable steering column for a vehicle, includes a substantially cylindrical bolt or rod with one end threaded to receive a lock nut and with its other end having a reduced-diameter portion to form a shoulder against which a pack of disc springs can be held in place by a nut peened onto the end of the rod. When the rod is placed under tension between its ends, the disc springs provide a substantially constant secondary load function to compensate for any loss of tensile load in the rod. This is particularly applicable to an adjustable steering column clamping mechanism where the rod forms the bolt of a clamp bolt assembly and the primary load is applied at one end against the set of disc springs. Accordingly, during normal vehicle life of, the steering column, compressive creep, surface-to-surface wear, etc. is compensated for by the substantially constant force provided by the clamp bolt assembly.
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