| 摘要 |
A T-frame barrier device for indoor use to provide a protective shield against dust or against any other incursion of foreign particles. The present invention comprises a horizontal structure (8) attached to an adjustable pole (10) to form a T-frame support structure with the ability to secure a sheet material (7) over the horizontal attachment to act as a barrier. It has an adjustable pole (10a) for supporting an adjustable horizontal structure comprised of a main member (8) and two other members (1, 2) that form sleeves in which the main member is slidably mounted. Alternatively, one of the two horizontal sleeves (1, 2) can be used alone to form a horizontal structure. All of the components of the said device are fabricated so they can be stored within a housing formed by the two sleeves.
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