Patent ID: 8434565
Filing Date: 2013-05-07
Classification: B25D,F16F

Abstract:
1. A hand-held power tool comprising an oscillation damping unit having a first damper mass unit with a first oscillation damping direction and at least one second damper mass unit with a second oscillation damping direction, wherein the first oscillation damping direction of the first damper mass unit is oriented essentially parallel to the second oscillation damping direction of the at least one second damper mass unit, wherein the first damper mass unit has a first oscillation natural frequency and the at least one second damper mass unit has a second oscillation natural frequency, wherein the first oscillation natural frequency is different from the second oscillation natural frequency, wherein the first damper mass unit and the at least one second damper mass unit are situated one after another along a common longitudinal axis extending in the first oscillation damping direction, wherein the first damper mass unit includes: (i) a first coil spring, (ii) a second coil spring, and (iii) a first damper mass element movably interposed between the first coil spring and the second coil spring, and wherein the at least one second damper mass unit includes: (i) a third coil spring, (ii) a fourth coil spring, and (iii) a second damper mass element movably interposed between the third coil spring and the fourth coil spring.