US 8,573,323 B2 · Hand-held power tool

Abstract

A hand-held power tool has a tool member and a motor drivingly connected to the tool member, wherein the motor is arranged in a motor housing. A battery for driving the tool member is provided. A guide shaft has arranged on its first end the battery and on its second end the motor housing and the tool member. A rotatably power output part arranged on the motor housing is drivingly connected to the motor. The power output part supports the tool member. Cooling air is sucked through the guide shaft into the motor housing. Between the power output part and the motor housing an annular air exit gap is formed through which the cooling air exits the motor housing. At least one guide vane that projects into the annular air exit gap is provided.

Claims17

Dependent claims

A hand-held power tool comprising:

a tool member;
a motor drivingly connected to said tool member;
a motor housing in which said motor is arranged;
a battery for driving said tool member;
a guide shaft having a first end and an opposed second end;
wherein on said first end said battery is arranged and on said second end said motor housing and said tool member are arranged;
a power output part arranged on said motor housing and drivingly connected to said motor so as to rotate;
wherein said power output part supports said tool member;
wherein cooling air is sucked through said guide shaft into said motor housing;
wherein between said power output part and said motor housing an annular air exit gap is formed through which the cooling air exits said motor housing;
at least one guide vane that projects into said annular air exit gap.

8 more elements

Dependencies are inferred from the claim text.

Hand-held power tool

Life of this patent

Hand-held power tool

Life of this patent

Abstract

Claims17