Apparatus for the tooling of a workpiece

Abstract

A portable apparatus (1) for the tooling of a workpiece (9) comprises a motor (3) with a cyclic movement output member (4), a tool holder (5) adapted to carry a tool (6) and a movement transmitter (7) engaging the motor output member (4) and the tool holder (5) to set the tool holder (5) in a cyclic movement, wherein the movement transmitter (7) comprises a transmission ratio adjuster (8) that, in response to a preset reduction of the cyclic movement speed (ω_m) of the output member (4) of the motor, increases the transmission ratio (ω_m/ω_ph) thereby reducing the cyclic movement speed (ω ph) of the tool holder (5) with respect to the cyclic movement speed (ω_m) of the output member (4) of the motor (3).

Dependencies are inferred from the claim text.