| 摘要 |
The setting drive has a reversible electric motor (1) and an associated conversion gearing, with a spline drive and a worm drive, contained within a drive housing (9). The drive take-off shaft, coupled to the worm wheel, is provided with a security washer provided by an open spring plate which is doubled over to provide a pair of springs acting against the sides of a reception groove in the drive take-off shaft. |
