| 摘要 |
The invention relates to a ring nut (1) comprising a suspension ring (2) which forms a base part (2A) in its lower area, in which a sleeve (4) with a threaded bore (6) open to the underside of the base part (2A) is rotatably mounted in a penetration opening (3). The sleeve (4) is supported by means of a circumferential annular collar (7) thereon at a bearing surface (8) of the sleeve, surrounding the penetration opening (3), on the base part (2A), and is provided on the exterior at the end region of the sleeve facing away from the underside of the base part (2A) with a non-rotationally symmetrical head profile (5). The sleeve (4) protrudes at the lower end region thereof into a central opening (21) of a disc (20) resting against the underside of the base part (2A) and is connected thereto in a rotationally fixed manner but does not project at its underside from the disc. On the base part (2A), adjacent to the head profile (5) of the sleeve (4), at least one locking member (9) is provided, which can be brought into a locking position, in which it cooperates with the head profile (5) and locks it in the rotational direction, and into a neutral position in which it releases the head profile (5) in the direction of rotation. |
