Twin tool-holder for handheld drilling machine

摘要

The invention relates to a twin tool holder for hand-held drilling machines having the following features: two shafts for accommodating one tool each - e.g. drill chuck, screwdriving insert, etc. - are provided; the shafts form an angle with one another which swivels the tool not inserted in each case out of the working area; a device is provided which alternately connects the spindles in a frictional manner to the drive shaft of the drilling machine. The invention is characterised by the following features: the shafts (5.1, 5.2) and the drive shaft of the drilling machine form a plane; the two shafts (5.1, 5.2) are pivotably provided in this plane about an axis perpendicular thereto; a driver (4) connected to the drive shaft in such a way as to be locked against rotation is provided; a bell-shaped piece (1) is provided which is firmly connected to the machine housing; a pivot bearing (2) guided by the bell-shaped piece is provided; the two shafts are mounted in the pivot bearing; at least one link guide (3.1, 3.2) for the pivot bearing (2) is provided which guides the pivoting movement of the pivot bearing so that the shaft (5.1) located in the working position in each case is connected to the driver (4) in such a way as to be locked against rotation; a mechanical lock (9) is provided which prevents unintentional pivoting of the pivot bearing.