| 摘要 |
A cane that has: a handle; a first tube attached to the handle; a second tube in slideable communication with the first tube, the second tube in communication with a cane tip; a spring located in the first tube, and in operable communication with the second tube; the spring preloaded such that when the second tube is fully extended from the first tube, the spring exerts generally about a value F1 of force on the second tube, tending keep the second tube extended from the first tube. A method for using a retractable cane to assist in sitting down. A method of using a retractable cane to rise from a sitting position. A method of using a retractable cane to assist in picking an object up. |
