Switch for detecting abnormal rotational movement of a bearing mounted shaft
OwnerJeff Shanerinventor
Life of this patent
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Abstract
A detecting device is disclosed for detecting undesired movement of a shaft such as a wrist pin relative to a bearing such as a wrist pin bearing. The detecting device includes a housing a rod pivotally mounted to the housing, and at least one detecting switch mounted on the housing adjacent the rod. A pointed end portion of the rod engages the shaft. The rod pivots when a point on the longitudinal axis of the shaft moves from a central axis of the bearing. As a consequence, a portion of the rod located adjacent to the detecting switch is pivoted from its normally centered position to an off-center position and actuates the detecting switch.
Claims19
A detecting device for detecting undesired movement of a shaft arranged in a bearing for rotational movement, comprising:
- housing means for the shaft and bearing;
- detecting means;
- switch means;
- and
- mounting means for slidably mounting said detecting means to said housing means such that said detecting means slides into contact with an end face of the shaft and pivots when a point on a longitudinal axis of the shaft moves off of a central axis of the bearing, said pivoting of the detecting means actuating said switch means so that the undesired movement of the shaft relative to the bearing is detected.
A detecting device for detecting undesired movement of a shaft arranged in a bearing for rotational movement, comprising:
- a housing;
- a rod pivotally and slidably mounted to said housing, said rod having a first end thereof for sliding into contact with an end face of the shaft;
- and
- at least one detecting switch mounted on said housing adjacent said rod, said rod being pivotable when a point on a longitudinal axis of the shaft moves from a central axis of the bearing, said pivoting of said rod actuating said detecting switch.
A detecting device for detecting undesired movement of a shaft arranged in a bearing for rotational movement, comprising:
- a housing;
- a rod having a first end pivotally attached to the shaft and having a second end, said rod being slidably attached within said housing intermediate said first and second ends so that said first end slides into contact with an end face of the shaft;
- and
- a pair of switches located a distance from said first end of said rod such that said pivotal attachment is intermediate said first end and said switches, said rod pivoting within said housing when a point on the longitudinal axis of the shaft moves from a central axis of the bearing, and said rod closing at least one of said switches during said pivoting so that the undesired movement of the shaft relative to the bearing is detected.
Dependencies are inferred from the claim text.