MULTISPEED GEARING MECHANISM AND PROCESSING MACHINE Russian patent published in 2013 - IPC B25D16/00 F16H3/83 F16D7/10 

FIELD: process engineering.

SUBSTANCE: invention relates to two-speed gearing for drive torque transfer from input side to output side that features, at least, two selectable gear ratios. Multispeed gearing comprises multispeed, primarily, two-speed engagement safety device 36 that features, at least, two different selectable limit torques. Multispeed gearing mechanism 34 incorporates, at least, two gear sets 56a, 56b, preferably, variable gears. Aforesaid multispeed, primarily, two-speed engagement safety device 36 is arranged in wheels of gear sets 56a, 56b.

EFFECT: compact design to allow integration with hand-held machines.

12 cl, 10 dwg