Collapsible indoor sports mats

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United States of America Patent

PATENT NO 4350721





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In a collapsible indoor sports mats in which a plurality of unit mats can be connected to and separated from one another by means of fasteners, the improvement wherein tapes of the fasteners having engaging teeth aligned thereon are fixed on the backs of the connecting edges of the unit mats, non-toothed portions for guiding a slider are formed by removing the engaging teeth, at the ends of extending parts extending from the unit mats, and location reference line marks are put at corresponding positions on the surface of the extending parts opposing one another, so that court lines on the unit mats to be connected are automatically matched with one another.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Nagase Rubber Co., Ltd.TOKYO0

International Classification(s)

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Inventor Name Address # of filed Patents Total Citations
Nagase, Jiro Tokyo, JP 1 24

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