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US 5,855,504 AGranted
Hand-operated orbital sander
AssigneeRobert Bosch GmbH
InventorsEugen Hild, Joao Bergner
Life of this patent
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AssigneeRobert Bosch GmbH
InventorsEugen Hild, Joao Bergner
Estimating the term…
In a hand-held orbital sander with a housing (12) and with a sanding tool (10) received in a tool holder (22), which is seated by means of a pivot bearing (21) on a rotating eccentric journal (20) protruding from the housing (12), an oscillating device (23), having an inner ring (26), an outer ring (27) and a formed part (28) made of elastic material connecting the two with each other is provided as a security against relative rotation, wherein the inner ring (26) is fastened on the tool holder (22) coaxially with the pivot bearing (21), and the outer ring (27) is maintained, fixed against relative totation, in the housing (12). The oscillating device (23) provides a symmetrical force distribution and makes it possible to set the torque of the tool holder (22) with the sanding tool (10) as needed in respect to the hardness or thickness of the elastic formed part (28) (FIG. 1).
A hand-held orbital sander with a housing (12) and with a sanding tool (10) received in a tool holder (22), which is seated by means of a pivot bearing (21) on a rotating eccentric journal (20) protruding from the housing (12) and which is flexibly connected to the housing (12), fixed against relative rotation, by means of at least one oscillating device (23), characterized in that the oscillating device (23) is embodied as a ring which can be attached with its radial inner area to the tool holder (22) and with its radial outer area to the housing (12).
Dependencies are inferred from the claim text.