PERSON SUPPORT APPARATUS WITH EXIT DETECTION SYSTEM AND/OR SCALE SYSTEM
First Claim
1. A person support apparatus comprising:
- a frame;
a support surface adapted to support an occupant thereon;
a plurality of load cells, each of the load cells coupled to the frame and the support surface such that a weight applied to the support surface is detected by the plurality of load cells;
a memory including a weight value and load-cell specific calibration data stored therein during a manufacture of the person support apparatus, the weight value corresponding to a weight of components supported by the load cells;
a plurality of load cell brackets, each of the load cell brackets adapted to support one of the load cells, the load cell brackets dimensioned so that the support surface is not subjected to any deformation detectable by the load cells when the support surface is coupled to the frame; and
a controller adapted to determine if the support surface is occupied or not without taking a tare weight reading, the controller adapted to determine if the support surface is occupied or not by using the load-cell specific calibration data and the weight value.
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Abstract
A person support apparatus, such as a bed, cot, recliner, chair, stretcher, or the like, includes a frame, a support surface, a plurality of load cells, and first and second channels dimensioned to receive noses of at least one of the load cells. The first channel constrains a first one of the load cells in a first direction but not a second direction that is perpendicular to the first direction. The second channel constrains the second load cell in the second direction but not the first direction. The person support apparatus may also include a plurality of load cell brackets that are each adapted to support an end of one of the load cells. When included, the load cell brackets are constructed such that no forces from the support surface, other than weight forces, are applied to the load cells after the support surface is coupled to the frame.
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Citations
20 Claims
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1. A person support apparatus comprising:
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a frame; a support surface adapted to support an occupant thereon; a plurality of load cells, each of the load cells coupled to the frame and the support surface such that a weight applied to the support surface is detected by the plurality of load cells; a memory including a weight value and load-cell specific calibration data stored therein during a manufacture of the person support apparatus, the weight value corresponding to a weight of components supported by the load cells; a plurality of load cell brackets, each of the load cell brackets adapted to support one of the load cells, the load cell brackets dimensioned so that the support surface is not subjected to any deformation detectable by the load cells when the support surface is coupled to the frame; and a controller adapted to determine if the support surface is occupied or not without taking a tare weight reading, the controller adapted to determine if the support surface is occupied or not by using the load-cell specific calibration data and the weight value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A person support apparatus comprising:
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a frame; a support surface adapted to support an occupant thereon; a motor adapted to drive a component of the person support apparatus; a plurality of load cells, each of the load cells coupled to the frame and the support surface such that a weight applied to the support surface is detected by the plurality of load cells; a plurality of load cell brackets, each of the load cell brackets adapted to support one of the load cells; and a controller adapted to determine a weight of the occupant of the person support apparatus and to limit a functionality of the motor if the weight of the occupant of the support surface exceeds a threshold. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification