| 摘要 |
A fine-adjusting apparatus for an overhead projector has a mounting frame, an assembling device, a pitch-adjusting device, a left-right adjusting device and a connecting mount. The mounting frame is adapted to mount on a wall. The assembling device is detachably connected to the mounting frame and has a sliding mount and a base mount. The sliding mount is slidably mounted in the mounting frame. The base mount is pivotally connected to the sliding mount. The pitch-adjusting device is connected to the assembling device and has a pitching frame, a guiding bar and a pitch-adjusting shaft. The left-right adjusting device is connected to the pitch-adjusting device and has an adjusting frame, a left-right adjusting shaft and a linking element. The connecting mount is pivotally connected to the left-right adjusting device, is used to connect with the overhead projector and has a connecting board, two pivot frames and multiple extending arms.
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