Nut for accommodating the head of a fastening element or for inserting into the same

• Main Author: Scheiwiller, Felix
• Format: Patent
• Language: English
• Published: 26.03.2002

The invention relates to a socket for accommodating a head and/or an insert for insertion into a head of a fastener to be set and for holding the fastener as well as for driving the fastener during a setting process, wherein the socket and/or insert is provided with a plurality of jaws, which are disposed in succession in circumferential direction and which engage in a tubular holder, in which they are locked against rotation but can slide axially relative thereto between two end positions. A socket and/or insert () for accommodating a fastener head is inserted in a screwing attachment (). The socket and/or insert () comprises two jaws () which engage in a tubular holder () in which they are locked against rotation. The jaws can slide in axial direction relative to the holder (). In their one end position, the jaws () can be forced apart in radial direction for insertion of a fastener head. Under the effect of axial force in the direction of the arrow (), the jaws () are pressed into the holder (), whereby the jaws are necessarily squeezed toward each other in radial direction by virtue of the tapered camming faces (), so that the inserted fastener head becomes firmly clamped.