发明名称 |
Mechanical locking of floor panels |
摘要 |
Floor panels are shown, which are provided with a mechanical locking system having tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other and configured such that the protrusions can obtain a vertically unlocked position where they match the cavities and a vertically locked position where the protrusions overlap each other.
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申请公布号 |
US8505257(B2) |
申请公布日期 |
2013.08.13 |
申请号 |
US20090362977 |
申请日期 |
2009.01.30 |
申请人 |
BOO CHRISTIAN;SJOSTRAND MATTIAS;PALSSON AGNE;HAKANSSON NICLAS;PERVAN DARKO;VALINGE INNOVATION AB |
发明人 |
BOO CHRISTIAN;SJOSTRAND MATTIAS;PALSSON AGNE;HAKANSSON NICLAS;PERVAN DARKO |
分类号 |
E04B2/00 |
主分类号 |
E04B2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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