| 摘要 |
The access panel 11 comprises a parallel array 12 of longitudinal members 14-18 laterally spaced in a planar arrangement and at least two lazy-tong units 20, 21 extending between the members and pivotally linked to each member. The distance between the outermost members 17, 18 defines the panel length, the arrangement of the members with the lazy-tong units allowing the panel length to be varied. A locking unit may be included to engage at least two members in the array to retain the panel at a predetermined length. The ends of at least one member of the array may be adapted for sliding on a support means. |
