Rotation detecting sensor
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United States of America Patent
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Issued Date -
Aug 28, 2008
app pub date -
Feb 26, 2008
filing date -
Feb 26, 2007
priority date (Note) -
Abandoned
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Abstract
A wheel speed sensor includes a hall IC that outputs a signal representing a change of magnetic field generated by rotation of a detection object and that is simply covered with resin coating. In the process of molding the resin coating, a resin injection opening is positioned away from an end face of a sheath of a cable to be coated by a length no less than a minimum adhesion length for ensuring adhesion between the sheath and the resin coating. In addition, the holder and a cover of the detector are provided with waterproof protrusions extending along the entire peripheries of contact areas in which pressing pins are brought into contact with the holder and the cover. Accordingly, immersion of the detector is reliably prevented even when a void or the like occurs in the resin coating at a position near the injection opening.
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