Patent ID: 7929299

Claim:
A sliding door assembly for an electronic device, comprising: a carrier comprising a zone for holding computerized components; a gear device comprising two gears separated from each other by a fixed distance, wherein each of the gears comprises a toothed portion having a plurality of teeth, and a roller extending from the toothed portion; a door capable of selectively covering the zone; and a panel mounted to the carrier; wherein a selected one of the carrier or the panel comprises two racks; wherein a selected one of the carrier or the panel defines two guiding grooves; wherein the toothed portions engage with the racks respectively so as to allow the gears to rotatably mount to the door, wherein the rollers are received by and capable of rolling in the guiding grooves respectively, and wherein each of the rollers is sandwiched between a portion bounding the corresponding guiding groove and the panel.