| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a platform device capable of self-propelling with a simple structure.SOLUTION: A self-propel accessory 12 provides an easily attachable optional drive function for a platform device 10. The platform device is supported by a device frame 14 including a wheel at a rear end and a post at a front end. The self-propel accessory includes an accessory frame 24 attachable to the device frame via a bracket, a driving wheel 28 connected to the accessory frame, a motor 30 operatively coupled with the driving wheel, and a handle 32 connected to the accessory frame. The accessory frame is pivotable between a disengaged position and an engaged position, and a weight of the platform device biases the accessory frame toward the disengaged position.</p> |
