| 摘要 |
The present invention includes a first positioning assembly and a second positioning assembly respectively mounted on the bottom housing of the scanner. The first positioning assembly defines a first clamping groove, and the second positioning assembly defines a second clamping groove. A toothed belt is used to drive the chassis of the scanner to move reciprocally. The toothed belt includes a first end and a second end respectively locked in the first clamping groove of the first positioning assembly and the second clamping groove of the second positioning assembly. The toothed belt can be mounted directly, without having to additionally perform a working process, thereby reducing the machining processes, and thereby decreasing the cost of fabrication.
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