| 摘要 |
PCT No. PCT/FI86/00001 Sec. 371 Date Aug. 13, 1986 Sec. 102(e) Date Aug. 13, 1986 PCT Filed Jan. 7, 1986 PCT Pub. No. WO86/04003 PCT Pub. Date Jul. 17, 1986.The invention relates to a steering mechanism for an autogenous cutting torch, wherein an autogenous cutting torch (5) is fastened to the end of a steering arm (2) shaped as a long shaft. Steering arm (2) is adapted to be axially movable and rotatable around its axis. In order to control the movements digitally at a desired, readily variable ratio of dependence or alternatively in cycles of desired duration, digitally controlled motors are operated, the first motor (9) rotating a gear (11) surrounding said steering arm (2). This gear (11) drives steering arm (2) therealong but steering arm (2) is axially movable relative to gear (11). Said gear (11) is fitted with a second digitally controlled motor (16), a gear (15) driven thereby being meshed with a toothed rack (2, 14) provided by the steering arm itself, for producing said axial movement. |
