Pneumatic grinding machine provided with dust removing means
AssigneeAtlas Copco Aktiebolag
InventorKarl Gosta Karden
Life of this patent
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Abstract
A pneumatic grinding machine provided with a dust collector which partly surrounds the grinding tool and which is connected to a suction source through a dust conveying conduit. The maneuverability of the machine is improved by utilizing rotatable connections for the dust conveying conduit as well as for the pressure air supply conduit and by arranging said connections rotatable relative to the machine for rotation about a common axis. The rotatability of these conduits is accomplished by swivel means disposed as the outer end of a machine handle. Alternatively, the connections are associated with the dust collector.
Claims13
Dust removing device for a hand held pneumatic grinding machine, comprising:
- a machine housing carrying a rotatable grinding tool,
- a dust collector which is attached to the machine housing and arranged to at least partly surround the grinding tool, and means for coupling a pressure air supply conduit to the machine and a dust conveying conduit in communication with said dust collector,
- the improvement wherein said coupling means comprises swivel means for rotatably coupling the dust conveying conduit and the pressure air supply conduit to the machine with the dust conveying conduit and the pressure air supply conduit substantially coaxial with each other and rotatable about a common axis relative to the machine.
Pneumatic grinding machine comprising:
- a housing,
- an output shaft journalled in said housing, said output shaft carrying a grinding tool at its forward end,
- a dust collector attached to said housing and arranged so as to at least partly surround the grinding tool, and
- a connection for a pressure air supply conduit and a connection for a dust conveying conduit communicating with said dust collector,
- said connections including swivel means for substantially coaxially and rotatably coupling said conduits relative to said housing for rotation about a common axis.
Pneumatic grinding machine comprising:
- a housing,
- an output shaft journalled in the housing, said output shaft carrying a grinding tool,
- a dust collector attached to the housing and arranged so as to at least partly surround the grinding tool,
- a connection device attached to the housing for receiving in substantially coaxial relationship a motive air supply conduit and a dust conveying conduit,
- said dust conveying conduit communicating through said connection device with said dust collector, and being connected to a suction source at its downstream end, and
- said connection device including swivel means for substantially coaxially and rotatably coupling said conduits to the housing for rotation relative to the housing about a common axis.
Dependencies are inferred from the claim text.