Device for rotating an emitter device emitting a laser beam for the purpose of generating a plane or a conical surface

A device for rotating an emitter device (1;

• 1';
• 1") emitting a laser beam (L) about a rotation axis (D), enclosing a presettable angle with the laser beam (L), for the purpose of generating a plane or a conical surface, wherein the emitter device (1;
• 1';
• 1") is fastened to an elongated solid body of revolution (2;
• 2';
• 2") which, at its ends, is mounted by means of a pivot bearing (3,4;
• 3',4';
• 3",4") in each case on a holder (5;
• 5';
• 5") which can be fixed in space, such that it can rotate about a longitudinal axis of said body forming the rotation axis (D), and wherein each pivot bearing (3,4;
• 3',4';
• 3",4") comprises a conical seat (16;
• 32;
• 36), concentric with the rotation axis (D), on the body of revolution (2;
• 2';
• 2") or on the holder (5;
• 5';5"), and a bearing member (17;
• 25;
• 30;
• 35), fastened to the holder (5;
• 5';
• 5") or to the body of revolution (2;
• 2';
• 2"), having a rounded outer surface which is concentric with the rotation axis (D) and engages the conical seat (16;
• 32;
• 36), and the bearing member (17;
• 25;
• 30;
• 35) being prestressed against one another in the direction of the rotation axis (D) in the case of each pivot bearing (3,4;
• 3',4';
• 3",4").