Seat belt tension sensor
First Claim
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1. A seat belt tension sensor assembly comprising:
- a pull plate having portions defining a belt loop opening for receiving seat belt webbing and a sensor opening;
first and second magnets coupled to said pull plate on opposite sides of said sensor opening, each of said first and second magnets being oriented with a first pole adjacent said sensor opening and second pole positioned away from said opening toward a side of said sensor assembly; and
a sensor at least partially disposed in said sensor opening, said sensor being configured to provide an output in response to flux imparted thereto by said first and second magnets, whereby upon application of tension to said seat belt webbing, said pull plate is configured to move relative to said sensor, said output of said sensor being indicative of a level of said tension.
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Accused Products
Abstract
A seat belt tension sensor assembly including magnets oriented to reduce assembly size.
27 Citations
3 Claims
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1. A seat belt tension sensor assembly comprising:
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a pull plate having portions defining a belt loop opening for receiving seat belt webbing and a sensor opening;
first and second magnets coupled to said pull plate on opposite sides of said sensor opening, each of said first and second magnets being oriented with a first pole adjacent said sensor opening and second pole positioned away from said opening toward a side of said sensor assembly; and
a sensor at least partially disposed in said sensor opening, said sensor being configured to provide an output in response to flux imparted thereto by said first and second magnets, whereby upon application of tension to said seat belt webbing, said pull plate is configured to move relative to said sensor, said output of said sensor being indicative of a level of said tension. - View Dependent Claims (2, 3)
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Specification
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Current AssigneeStoneridge Control Devices, Inc. (Stoneridge Incorporated)
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Original AssigneeStoneridge Control Devices, Inc. (Stoneridge Incorporated)
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InventorsFrank, Ronald I.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current324/207.2
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CPC Class CodesB60R 2022/4841 for sensing belt tensionB60R 21/0155 sensing belt tensionB60R 22/48 Control systems, alarms, or...G01L 5/103 using sensors fixed at one ...
