Linear position sensor with anti-rotation device
First Claim
1. A linear position sensor comprising:
- a housing;
a magnet carrier located and movable linearly in the housing, the magnet carrier including a base with a receptacle;
a magnet carried by the magnet carrier; and
a plate coupled to the housing and the magnet carrier, the plate including at least one finger extending into the receptacle in the base of the magnet carrier for preventing the rotation of the magnet carrier relative to the plate.
2 Assignments
0 Petitions
Accused Products
Abstract
An anti-rotation device or assembly for preventing the rotation of a magnet in a linear position sensor and eliminating the risk of undesired magnetic field measurements and incorrect sensor signal outputs. In one embodiment, the anti-rotation device is an anti-rotation plate which is fixed to the housing of the linear position sensor and a magnet carrier which includes at least one finger extending into a receptacle defined in either the edge or the body of the magnet carrier to prevent the magnet carrier from rotating relative to the plate. In another embodiment, the magnet carrier includes a key and the magnet includes a groove. The key extends into the groove for preventing the rotation of the magnet in the magnet carrier.
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Citations
4 Claims
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1. A linear position sensor comprising:
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a housing; a magnet carrier located and movable linearly in the housing, the magnet carrier including a base with a receptacle; a magnet carried by the magnet carrier; and a plate coupled to the housing and the magnet carrier, the plate including at least one finger extending into the receptacle in the base of the magnet carrier for preventing the rotation of the magnet carrier relative to the plate. - View Dependent Claims (2)
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3. A linear position sensor comprising:
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a housing; a magnet carrier located in the housing, the magnet carrier being adapted for linear movement in the housing; a magnet located in the magnet carrier; anti-rotation means for preventing the rotation of he magnet; and a shaft and a cup both adapted for linear movement in the housing and wherein the magnet carrier includes a base having at least one receptacle defined therein and the anti-rotation means comprises an anti-rotation plate seated on the cup in the housing and the shaft couples the anti-rotation plate to the cup and the magnet carrier is seated in the cup and against the anti-rotation plate, the anti-rotation plate including at least one finger extending into the receptacle in the base of the magnet carrier to prevent the rotation of the magnet carrier. - View Dependent Claims (4)
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Specification