Infrared sensing lift chair
First Claim
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1. Adjustable furnishing comprising:
- at least one support member including a surface for supporting a user;
at least one mechanism connected to the support member for adjusting a position of the support member;
at least one infrared radiation sensor positioned beneath the surface which generates a signal upon detecting a heated body in proximity to the at least one mechanism; and
a controller for receiving the signal from the at least one infrared radiation sensor and at least one of signaling the user and inhibiting travel of the mechanism and the support member in a direction of the detected heated body in response to the signal.
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Abstract
The present invention provides an adjustable furnishing such as a lift chair including a support member with a surface for supporting a user. A mechanism is connected to the support member for adjusting a position of the support member. One or more infrared radiation sensors are positioned beneath the surface of the support member to generate a signal when a heated body is detected in proximity to the mechanism. A controller is provided for receiving the signal from the infrared radiation sensors and inhibiting travel of the mechanism and the support member in a direction of the detected heated body.
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Citations
34 Claims
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1. Adjustable furnishing comprising:
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at least one support member including a surface for supporting a user; at least one mechanism connected to the support member for adjusting a position of the support member; at least one infrared radiation sensor positioned beneath the surface which generates a signal upon detecting a heated body in proximity to the at least one mechanism; and a controller for receiving the signal from the at least one infrared radiation sensor and at least one of signaling the user and inhibiting travel of the mechanism and the support member in a direction of the detected heated body in response to the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for adjusting a furnishing, the furnishing having at least one support member for supporting a user, the method comprising:
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providing a positioning mechanism connected to the support member; providing an infrared radiation sensor in proximity to the positioning mechanism; actuating the positioning mechanism to adjust the furnishing; detecting a heated body in proximity to the positioning mechanism and support member in a space beneath the support member using the infrared radiation sensor to detect infrared radiation emitted by a heated body; and at least one of signaling the user and inhibiting travel of the mechanism and the support member in a direction of the detected heated body. - View Dependent Claims (25, 26, 27, 28, 29)
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30. A lift chair comprising:
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at least one support member including a surface for supporting a user; at least one mechanism connected to the support member for adjusting a position of the support member; at least one infrared radiation sensor, positioned to detect a heated body in proximity to at least a portion of a perimeter of the lift chair, which generates a signal upon detecting a heated body; and a controller for receiving the signal from the at least one infrared radiation sensor and inhibiting travel of the mechanism and the support member in a direction of the detected heated body in response to the signal.
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31. A lift chair comprising:
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at least one support member including a surface for supporting a user; at least one mechanism connected to the support member for adjusting a position of the support member; at least one infrared radiation sensor, positioned to detect a heated body in proximity to at least a portion of a perimeter of the lift chair, which generates a signal upon detecting a heated body; a controller for receiving the signal from the at least one infrared radiation sensor; and an alarm connected to the controller for being activated by the controller when the infrared radiation sensor detects a heated body. - View Dependent Claims (32, 33, 34)
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Specification