| 摘要 |
<p>A drive bay opening (24) in the front bezel portion of a tower type computer CPU unit is provided with a swing-out plastic access door (26). The door (26) is pivotable between a closed position and a full open stop position in which it is outwardly pivoted more than ninety degrees away from its closed position. A specially designed concealed, break-away hinge structure (28) removably interconnects the access door (26) and front bezel portion and includes a pair of hinge arms (42,44) projecting outwardly from the door (26) and molded integrally therewith. Outer end tabs (62) in the hinge arms (42,44) have apertures (68) therein that rotatably receive hinge pins (46,48) within recessed pocket areas in the bezel (22). In the event that the access door (26) is forcibly pivoted outwardly beyond its full open stop position, separate disconnect pins (54,56) disposed laterally outwardly of the hinge pins (46,48) act as cams that torsionally deflect the hinge tabs (62) out of engagement with the hinge pins (46,48). As a result, the door (26) simply pops off the bezel (22) without damaging either the door (26), the hinge structure (28) or the bezel (22). The hinge arm tabs (62) of the separated, undamaged access door (26) may subsequently be snapped back onto the hinge pins (46,48) with chamfered edge portions (72) of the tabs (62) initially engaging domed portions (74) of the hinge pins (46,48) to torsionally deflect the tabs (62) in a manner facilitating their re-connection to the hinge pins (46,48) on the bezel (22). &lt;IMAGE&gt;</p> |
