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公开(公告)号：US20220381286A1
公开(公告)日：2022-12-01
申请号：US17332486
申请日：2021-05-27
IPC分类号： F16B39/282
摘要： A self-clinching and self-piercing construction element for attachment to a plastically deformable metal panel. The construction element includes a body portion with a central axis and a punch portion being coaxial with the central axis and extending from the body portion. A pilot embossment is coaxial with the central axis and extends from the body portion such that the pilot embossment is concentrically disposed between an annular-shaped surface of the body portion and the punch portion. The pilot embossment being configured to engage and plastically deform the metal substrate such that the metal substrate flows into a recessed pocket defined in an outer peripheral surface of the punch portion. A plurality of spaced apart lugs axially project outwards from the annular-shaped surface and extend radially outwards from the pilot embossment.
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公开(公告)号：US20240068500A1
公开(公告)日：2024-02-29
申请号：US17822528
申请日：2022-08-26
IPC分类号： F16B37/06
CPC分类号： F16B37/068
摘要： A self-clinching fastener for attachment to a plastically deformable metal substrate includes a body portion with a central axis, the body portion has an annular-shaped surface extending in a direction perpendicular to the central axis The annular-shaped surface includes a first annular face, a second annular face, and a third annular face. The third annular face lies on an imaginary horizontal plane. A punch portion extends from the body portion. A plurality of spaced apart lugs encircle the punch portion. The first annular face extends from an outer peripheral surface of the punch portion in a radially outwards direction, and the second annular face is radially disposed between the first annular face and the third annular face. One of the lugs declines to the second annular face.
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