| 摘要 |
An adjustable apparatus for protection of a door or window opening having an upper frame and a lower frame, the adjustable apparatus including a plurality of posts, a first end plate for fastening a first end of the adjustable apparatus to the upper frame of the opening, and a second end plate for fastening a second end of the apparatus to the lower frame of the opening, wherein the plurality of posts further include a first portion having a predetermined length and a second portion having a predetermined length, wherein the first portion telescopically engages the second portion, and wherein a length of the plurality of posts telescopically adjusts to correspond to a longitudinal dimension between the upper frame and the lower frame of the opening.
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