| 摘要 |
According to one embodiment, a cot (10) comprises a support frame (12) comprising a front end (17), and a back end (19); a pair of front legs (20) pivotally coupled to the support frame (12), wherein each front leg (20) comprises at least one front wheel (26); a pair of back legs (40) pivotally coupled to the support frame (12), wherein each back leg (40) comprises at least one back wheel (46); a cot actuation system comprising a front actuator (16) that moves the front legs (20) and a back actuator (18) that moves the back legs (40), wherein the support frame (12) comprises a pair of parallel lateral side members (15) extending between the front end (17) and the back end (19); the pair of parallel lateral side members (15) comprise tracks; each front leg (20) comprising a front carriage member (28) slidingly engaged with the tracks, and each back leg (40) comprising a back carriage member (48) slidingly engaged with the tracks; the front actuator (16) and the back actuator (18) raise or lower the support frame (12) together; the front actuator (16) being configured to raise or lower the front end (17) of the support frame (12) separately from the back actuator (18); and the back actuator (18) being configured to raise or lower the back end (19) of the support frame (12) separately from the front actuator (16). |
