Person support apparatus power drive system
First Claim
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1. A person support apparatus, comprising:
- a lower frame;
an upper frame movably supported above the lower frame by a lift system;
a weigh scale operable to weigh a person supported by the upper frame;
a drive structure coupled to the upper frame and movable with the upper frame as the upper frame is moved by the lift system with respect to the lower frame, the drive structure being configured to selectively engage a surface when the upper frame is in a lowered position to, when activated, propel the person support apparatus along the surface; and
a control system configured to determine whether the drive structure engages the surface and trigger a response as a function of such determination, wherein the weigh scale is prevented by the control system from weighing the person if the drive structure is engaging the surface.
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Abstract
A person support apparatus comprises a lower frame, an upper frame, a drive structure, and a control system. The upper frame is movably supported above the lower frame. The drive structure is coupled to the upper frame and configured to selectively engage a surface to, when activated, propel the person support apparatus along the surface. The control system is configured to determine an engagement status of the drive structure with the surface and trigger a response based on the engagement status.
237 Citations
27 Claims
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1. A person support apparatus, comprising:
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a lower frame; an upper frame movably supported above the lower frame by a lift system; a weigh scale operable to weigh a person supported by the upper frame; a drive structure coupled to the upper frame and movable with the upper frame as the upper frame is moved by the lift system with respect to the lower frame, the drive structure being configured to selectively engage a surface when the upper frame is in a lowered position to, when activated, propel the person support apparatus along the surface; and a control system configured to determine whether the drive structure engages the surface and trigger a response as a function of such determination, wherein the weigh scale is prevented by the control system from weighing the person if the drive structure is engaging the surface. - 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, 24, 25, 26, 27)
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Specification