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US 6,647,760 B2Granted
Vibration pickup with pressure sleeve
AssigneeRobert Bosch GmbH
InventorsWolfgang-Michael Mueller, Uwe Konzelmann
Life of this patent
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Abstract
A vibration pickup has a pressure sleeve which is placeable on a component causing vibrations, a sensor element which detects the vibration, a seismic mass which is placeable outside of the sleeve on a support surface of the sensor element with an axial pretensioning, so that the sensor element is held between the seismic mass and a flange-like segment of the pressure sleeve, the seismic mass and the pressure sleeve being formed as a one-piece integral component.
Claims2
A vibration pickup, comprising a pressure sleeve which is placeable on a component causing vibrations;
- a sensor element which detects the vibration:
- a seismic mass which is placeable outside of said sleeve on a support surface of said sensor element with an axial pretensioning, so that said sensor element is held between said seismic mass and a flange-shaped projection of said pressure sleeve, said seismic mass and said pressure sleeve being formed as a one-piece integral component, wherein in said integral component said seismic mass with said pressure sleeve through a web which is flexible within predetermined limits, so that between said seismic mass and said flange-shaped projection a ring gap is formed, which prior to mounting of said sensor element has a smaller axial opening than an axial width of said sensor element, said sensor element being axially slotted on one side, so that during mounting of the vibration-pickup said sensor element is placed around a periphery of said pressure sleeve in said ring gap.
Dependencies are inferred from the claim text.