| 摘要 |
PCT No. PCT/FI82/00035 Sec. 371 Date Mar. 21, 1983 Sec. 102(e) Date Mar. 21, 1983 PCT Filed Sep. 13, 1982 PCT Pub. No. WO83/01026 PCT Pub. Date Mar. 31, 1983.A steering apparatus for an autogenous cutting torch for cutting holes of desired shape in flat or curved sheet walls, such as in the wall of a pipe. The steering apparatus comprises a holder arm for an autogenous cutting torch and means for guiding the holder arm in a manner that the autogenous cutting torch can be run along a certain desired orbit or path. A problem with the prior art steering equipment is the limited scope of application, e.g. to the cutting of flat sheets only. In order to expand the scope of application to also cover curved surfaces as well as combinations of flat and curved surfaces, the holder arm is designed as a long rod (4), arranged to be axially displaceable on a slide guide (7). The steering movement of an autogenous cutting torch crosswise relative to holder arm (4) is arranged to be effected by means of steering elements (9, 10, 12, 19) engaging the holder arm at a distance from cutting torch (3) and turning said holder arm (4) around its longitudinal axis and/or displacing holder arm (4) in its transverse direction, on a slide guide which is perpendicular to said slide guide (7).
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