| 摘要 |
The invention relates to a pipe clamp intended to grasp and using a holding element (5) hold firm an elongated element (4) with at least a first (1, 1a1-2, 1b1-2) gripping element with a first longitudinal axis, and a second (2, 2a1-2 2b1-2) gripping element with a second longitudinal axis. The first and second gripping elements have a nominal position where a straight, elongated element of even thickness with a main longitudinal axis may be received in the gripping elements. In the nominal position, the first and second longitudinal axes are parallel to the main longitudinal axis. A primary gripping element is provided with a device for translating the primary gripping element orthogonally to the main longitudinal axis, and this makes it possible to hold elongated elements with varying cross sectional sizes in a well defined direction. In one embodiment, a gripping element is provided with a device for angling the gripping element from the main longitudinal axis. Thus, the pipe clamp may hold bent elements in a well defined direction. In yet another embodiment the gripping element (1, 1a1-2, 1b1-2, 2, 2a1-2 2b1-2) are designed to receive the elongated element (4) in V-shaped jaws or in a pair of V-shaped jaws. Between the pair of V-shaped jaws, the gripping element may be provided with a holding element (5) that typically prevents the elongated element (4) from rotation around its axis. The pipe clamp typically comprises a handle (6-7) for turning a boring head (8) on a drill pipe. With the longitudinal axis of the drill pipe well defined, the risk that the boring head is forced in a radial direction or that the boring head threads are damaged is minimized. |
