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US 12,708,994 B2Granted
Hand-held power tool
AssigneeRobert Bosch GmbH
InventorsPeter Stierle, Thomas Schomisch, Rico Unger
Life of this patent
Estimating the term…
Abstract
A hand-held power tool, more particularly angle grinder, includes a cooling unit for cooling the hand-held power tool, a machine housing for receiving the cooling unit, and an air inlet opening for admitting an air flow. The hand-held power tool has a dust protection unit for reducing, especially without using a filter, dust particles in the air flow.
Claims17
A hand-held power tool, comprising:
- a cooling unit configured to cool the hand-held power tool,
- a machine housing configured to receive the cooling unit,
- an air inlet opening defined by the machine housing and configured to admit an air flow into the machine housing, and
- a dust protection unit configured to reduce dust particles in the air flow, the dust protection unit comprising a dust protection element that is arranged outside the machine housing, at least partially covers the air inlet opening, and is spaced apart from the air inlet opening in every operating state of the hand-held power tool, wherein:
- the dust protection element has a longitudinal extent defined along a longitudinal axis of the hand-held power tool and a transverse extent defined along a transverse axis of the hand-held power tool,
- the air inlet opening has an inlet longitudinal extent and an inlet transverse extent, and
- the longitudinal and transverse extents of the dust protection element entirely encompass the inlet longitudinal extent and the inlet transverse extent of the air inlet opening such that the air flow is diverted around the dust protection element before entering the air inlet opening.
4 more elements
Dependencies are inferred from the claim text.