Support apparatus with vertically pivotable cutting arm

摘要

The invention relates to a support apparatus with a shearing machine (5) which is provided with a cutting arm (6) which is mounted in a vertically pivotable manner on a cutting-arm carrier (slide 7) and is preferably provided with a cutting head (21) which is rotatable about an axis (25) running roughly parallel to the working face (2). The cutting arm (6) is connected via a guide-bar mechanism (12) to the cutting-arm carrier (7). The guide-bar mechanism (12) is designed like a lemniscate mechanism, i.e. in such a way that the cutting head (21) moves at least approximately on a straight line during its stroke movements from the low position into the high position and vice versa, so that the working face (2) is cut as a face roughly perpendicular to the stratification or as an inclined face at an oblique angle to the stratification. <IMAGE>