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US 4,729,195 AGranted
Hand gripping machine with a suction device
AssigneeRobert Bosch GmbH
InventorGunther Berger
Life of this patent
Estimating the term…
Abstract
A hand-held grinding machine with a device for the suction of grinding dust comprises a motor with a motor shaft, an eccentric drive for driving a support of a grinding sheet. The machine further includes a fan wheel which carries an element for compensating for imbalance mass of the eccentric drive.
Claims14
A hand-held grinding machine, comprising a motor with a motor shaft;
- a grinding sheet support;
- an eccentric drive for said grinding sheet support and connected to said motor shaft;
- and a fan wheel having an imbalance mass compensated by an imbalance of said eccentric drive, said fan wheel having a bore concentrical to said motor shaft and receiving an end of said motor shaft, and a recess eccentrical with said bore;
- and a pin received in said recess via bearings, said pin holding said grinding sheet support.
1 more element
Dependencies are inferred from the claim text.