| 摘要 |
An operating wand (10) has a handle (20), an upper rod (40) connected by an intermediate rod (30) having one end pivotably attached to the upper end of the handle (20) and the opposite end pivotably attached to the lower end of the upper rod (40). A sleeve (12) slides along the upper rod between a first position and a second position. When in the first position the sleeve (12) covers a portion of the upper rod (40), the handle (20), and the intermediate rod (30), keeping the handle (20), intermediate rod (30) and upper rod (40) in a co-linear alignment. When the sleeve (12) is in the second position, the handle and intermediate rod are fully exposed allowing the intermediate rod to be moved relative to the handle and the upper rod so that the intermediate rod is normal to the handle and normal to the upper rod. With the sleeve in the second position the wand (10) can be operated like a crank. |
