Seat status detecting device
First Claim
Patent Images
1. A seat status detecting device comprising:
- a seat slide portion provided at a seat;
a magnetic sensor provided at the seat slide portion for detecting a seat status by way of a steel plate, the magnetic sensor comprising a first magnet, a second magnet, and a detection element, the detection element being arranged at a portion between the first magnet and the second magnet for detecting a change in the balance of magnetic force between the first and second magnets;
a protective cover assembled onto the magnetic sensor for surrounding the magnetic sensor, the protective cover including a first wall portion provided above the magnetic sensor while keeping a first predetermined distance therefrom and a second wall portion provided on a side of the magnetic sensor while keeping a second predetermined distance therefrom and extending downwardly relative to the magnetic sensor for surrounding the magnetic sensor, the protective cover preventing foreign objects from deteriorating performance of the magnetic sensor;
wherein when the seat slide portion moves in a predetermined direction, the first magnet is arranged close to the steel plate that is positioned opposite to the detection element.
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Abstract
A seat status detecting device includes a seat status detecting device includes a seat slide portion provided at a seat, a magnetic sensor provided at the seat slide portion for detecting a seat status, and a protective cover assembled to the magnetic sensor for surrounding the magnetic sensor.
21 Citations
8 Claims
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1. A seat status detecting device comprising:
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a seat slide portion provided at a seat; a magnetic sensor provided at the seat slide portion for detecting a seat status by way of a steel plate, the magnetic sensor comprising a first magnet, a second magnet, and a detection element, the detection element being arranged at a portion between the first magnet and the second magnet for detecting a change in the balance of magnetic force between the first and second magnets; a protective cover assembled onto the magnetic sensor for surrounding the magnetic sensor, the protective cover including a first wall portion provided above the magnetic sensor while keeping a first predetermined distance therefrom and a second wall portion provided on a side of the magnetic sensor while keeping a second predetermined distance therefrom and extending downwardly relative to the magnetic sensor for surrounding the magnetic sensor, the protective cover preventing foreign objects from deteriorating performance of the magnetic sensor;
wherein when the seat slide portion moves in a predetermined direction, the first magnet is arranged close to the steel plate that is positioned opposite to the detection element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A seat status detecting device comprising:
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a seat slide portion provided at a seat; a magnetic sensor provided at the seat slide portion for detecting a seat status; a protective cover assembled to the magnetic sensor for surrounding the magnetic sensor; the protective cover including a first wall portion provided above the magnetic sensor with keeping a first predetermined distance therefrom and a second wall portion provided on a side of the magnetic sensor with keeping a second predetermined distance therefrom and extending downwardly relative to the magnetic sensor for surrounding the magnetic sensor; the protective cover including an engaging portion engaging with an outer face of the magnetic sensor, and is held to the magnetic sensor after being elastically deformed by being pressed against the outer face of the magnetic sensor and then returned to an original shape of the protective cover by the engaging portion engaging with the outer face of the magnetic sensor; and the protective cover including an engaging hook being inserted into a gap formed between the seat slide portion and the magnetic sensor, and being pressed against the seat slide portion and the magnetic sensor.
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Specification