Oscillation damper for hand-held power tool

Details Oscillation damper for hand-held power tool Oscillation damper for hand-held power tool

2008-01-30

2011-11-29

Williams, Melanie Torres (Department: 3657)

Brakes

Inertia of damping mass dissipates motion

Resiliently supported damping mass

Reexamination Certificate

active

08066106

ABSTRACT:
An oscillation damper for a hand-held power tool (D) has at least one first spring (4) and at least one second, additional spring (9) for axially compressively preloading a damping mass (3) of the damper against the tool housing, and a user-operated switching element (8) having a first position in which the damping mass (3) is axially compressively preloaded against the power tool housing only by the at least one first spring (4), and a second position in which the switching means (8) connects the damping mass (3) with the at least one second additional spring (9) so that the damping mass (3) is axially compressively preloaded against the power tool housing by both the at least one first spring (4) and the at least one second, additional spring (9).

REFERENCES:
patent: 4625194 (1986-11-01), Held
patent: 4687171 (1987-08-01), Freudenberg
patent: 6920967 (2005-07-01), Wood
patent: 2009/0151967 (2009-06-01), Haas et al.

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