| 摘要 |
<p>A frame apparatus for a lightweight rollator has a front frame 10 and a rear frame 20. The front frame 10 has a base 11 and a handle frame 12. The base 11 has two connecting tabs 13, two locking elements 14 and a mounting frame 15. The handle frame 12 is rotatably connected to the base 11 and has a front wheel 121 and two connecting arms 122. The connecting arms 122 are formed on and protrude from the handle frame 12 and are pivotally connected to the base 11 between the connecting tabs 13. The rear frame 20 is connected to the front frame 10 and has a bottom mount 21, two rear wheels 22 and at least one driving motor 23. The bottom mount 21 is connected to the mounting frame 15 and has a guiding rod 24 and an engaging shaft 25. The rear wheels 22 are rotatably connected to the bottom mount 21. The at least one driving motor 23 is mounted on the bottom mount 21 and is connected to the rear wheels 22. The frame may also include an auxiliary wheel frame 30 adapted to removably mount auxiliary wheels (35, figure 4A).</p> |
