SHAFT FOR ROTATIONALLY COUPLING HAND-HELD MACHINE TO TUBULAR DEVICE Russian patent published in 2018 - IPC B25F5/00 B25F1/00 B25F3/00 F16D1/108 B23Q3/157 

FIELD: machine building.

SUBSTANCE: invention relates to hand-held machines. Shaft (20) for the rotation-transmitting connection of hand-held machine (10) with tubular device (30; 30a) has first free end (31) inserted into tubular device (30; 30a). With its second end (37), shaft (20) can be fixed to hand-held machine (10). Shaft (20) along its outer side surface has at least one first fitting part (46) for mating with hollow socket part (38) of tubular device (30; 30a) and at least one torque transmitting section (50.1, 50.2, 50.3, 50.4) engaged with the torque transmitting portion (39.1, 39.2, 39.3, 39.4) of tubular device (30; 30a). There is fixing device (36) on shaft (20) for fixing tubular device (30; 30a). Fixing device (36) has stopper (34), which in the blocked state prevents the removal of tubular device (30; 30a) from shaft (20), and in the unlocked state, it is possible to disassemble tubular device (30; 30a) from shaft (20). Fixing device (36) has lock (120) for unlocking and locking stopper (34) and located at first end (31) of shaft (20).

EFFECT: enabling higher reliability.

20 cl, 20 dwg