| 摘要 |
Predetermined types of anti-locking brake systems equipped with a master cylinder and a pump, for controlling the pump, requiring sensors for detecting the position of the master piston within the longitudinal bore 7 of the master cylinder housing 1. Way sensors or way switches are provided for this purpose. The present invention provides a simple arrangement of this type of sensor comprising a reed contact 18 and an annular magnet 20, with the reed contact 18 being cast into a stationary sealing plug 13 of the master cylinder while the annular magnet 20 is inserted into a recess 21 within an extension 9 of the master piston 6 for movement with the master piston.
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