Importance

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Abstract

An improved anchor sheet is described. The anchor sheet can be injection molded from polypropylene and can have a thickness of between 0.031 inches and 0.75. Such an anchor sheet can be molded with hooks and can have an attached resilient layer. Stems integral with the anchor sheet are used to form the hooks, and may be 1 mm high and 0.55 mm in diameter. The density of stems may be approximately 230 per square inch, or approximately 128,000 stems on a plate. An anchor sheet made in this way makes an excellent field of hooks when installed onto a supporting surface such as a floor. This field of hooks can take an overlying decorative covering such as pieces of loop backed carpet. When a resilient layer is attached, for example by ultrasonic welding, to the underside of the anchor sheet, between the anchor sheet and the floor, the anchor sheet can have the right degree of 'give', so that a user can experience some cushioning effect from the resilient layer below the anchor sheet, but with some level of rigidity so that the load of walking is transmitted across a larger surface and does not 'dig' into the resilient layer.

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First Claim