Adjustable length laptop computer tray assembly

摘要: A portable computer tray assembly (20) which includes a relatively thin, structurally rigid and length adjustable support surface (27) to accommodate variety of computers (33) thereatop. The thin platform member (21) having plurality shallow strengthening ribs (23) laterally spaced-apart thereacross. Further, (24) is positioned adjacent in abutting contact with the (21), (26) across member. These are formed for sliding interengagement provide therebetween lengthen aggregately by (24). between (23, 26) further substantially prevents lateral motion relative (21). an upstanding first lip (30) opposite second (31) retain therebetween.