| 摘要 |
A magnetic pickup sensor comprising a sensor assembly 11 and a molded resin housing 12 disposed around the assembly. The sensor assembly has a pickup coil 15 wound around an iron core 14 for detecting a change in the magnetic flux of a magnet 13, and a support unit including a coil bobbin 18 and a spacer 20 for supporting the magnet and core assembly. The iron core has one end 14 a projecting outwardly from the molded resin, and the spacer of the support unit has a positioning recess 23 for engagement by a positioning pin 30 of a mold die. Therefore, the sensor assembly can be accurately positioned and held within the mold die during molding of the housing.
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