| 摘要 |
A data entry device includes a frame having a pad, a flexible base, a sleeve, a handle, a rolling mechanism, and a stop mechanism. The base is received in the sleeve. The flexible base is attached to the frame for interacting with the pad for inputting information. The handle is detachably attached to the sleeve. The rolling mechanism is for rotating the base, one end of the base is secured to the rolling mechanism, and the other end of the base is secured to the handle. The stop mechanism controls the rotation of the rolling mechanism for preventing the flexible base rotating. |
