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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0911986 (1992-07-10) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 416 인용 특허 : 0 |
A flooring system having a base member having a top side, an underside, and four circumferentially spaced outer edges, a tongue connector secured to one outer edge by an interlocking rib and groove, a groove connector secured to another outer edge by an interlocking rib and groove, the tongue connec
A flooring system having a base member having a top side, an underside, and four circumferentially spaced outer edges, a tongue connector secured to one outer edge by an interlocking rib and groove, a groove connector secured to another outer edge by an interlocking rib and groove, the tongue connector having forwardly converging compressible sidewalls terminating in rear transverse locking surfaces, the groove connector having an enlarged inner opening and a smaller outer opening, the tongue sidewalls in a compressed position being smaller than said groove outer opening to pass through the outer opening but elastically expandable to be larger than said outer opening to lock a tongue in a groove.
A flooring having a base member having four peripheral outer edges, a top side, and an underside, a first connector attached to one outer edge and having an elongated elastically compressible tongue, the tongue having a first transverse width when in its normal condition and a second smaller transve
A flooring having a base member having four peripheral outer edges, a top side, and an underside, a first connector attached to one outer edge and having an elongated elastically compressible tongue, the tongue having a first transverse width when in its normal condition and a second smaller transverse width when compressed, another of said outer edges having a groove, said groove having an inner opening and an outer opening greater in transverse width than said inner opening, said tongue normal width in its normal condition being greater than said groove outer opening but smaller than said groove outer opening when the tongue is compressed; said tongue having a forward end with forwardly converging sidewalls separated by a slot, the sidewalls terminating rearwardly in rear locking surfaces substantially transverse to said tongue and at least ninety degrees at its forward angle to the path of insertion between the tongue and the groove, said groove having a forward end with forwardly diverging sidewalls, said groove sidewalls terminating rearwardly in intermediate locking surfaces substantially transverse to said groove and also at least ninety degrees at its forward angle to the path of insertion between the tongue and the groove, said tongue slot lying along the path of insertion between the tongue sidewalls to allow the tongue sidewalls to elastically bend toward one another, wherein said tongue sidewalls bend toward one another to reduce the space between the tongue sidewalls so that the tongue sidewalls pass inwardly in the groove until the tongue rear locking surfaces pass the groove intermediate locking surfaces and then the tongue expands so that the tongue rear locking surfaces overlap and abut said groove intermediate locking surfaces, said mating tongues and grooves extending for substantially the entire width and length of said surface sheets, said groove having an outer opening with inwardly and forwardly converging sidewalls, and said tongue having rearward sidewalls also converging inwardly and forwardly and mating with said groove outer opening sidewalls.
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