POWER TOOL COOLING
First Claim
1. An electric power tool, comprising:
- a motor housing having inlet and outlet slots;
an electric motor received within the motor housing, the electric motor configured to drive a working spindle;
a ventilation device disposed within the motor housing and configured to generate an airflow between the inlet and outlet slots; and
an airflow assembly attached to the motor housing, wherein at least a portion of the airflow received from the motor housing is introduced along an airflow path within the airflow assembly.
1 Assignment
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Accused Products
Abstract
An electric power tool is provided. The electric power tool includes a motor housing having inlet and outlet slots and an electric motor received within the motor housing. The electric motor is configured to drive a working spindle. The electric power tool includes a ventilation device disposed within the motor housing and configured to generate an airflow between the inlet and outlet slots. The electric power tool also includes an airflow gear case attached to the motor housing. The airflow gear case having an opening to receive the working spindle and bearings. An airflow sleeve covers the airflow gear case, wherein at least a portion of the airflow received from the motor housing is introduced along an airflow path defined by the airflow gear case and the airflow sleeve.
53 Citations
20 Claims
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1. An electric power tool, comprising:
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a motor housing having inlet and outlet slots; an electric motor received within the motor housing, the electric motor configured to drive a working spindle; a ventilation device disposed within the motor housing and configured to generate an airflow between the inlet and outlet slots; and an airflow assembly attached to the motor housing, wherein at least a portion of the airflow received from the motor housing is introduced along an airflow path within the airflow assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A handle member for an electric power tool, the handle member comprising:
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an airflow gear case configured to receive an airflow from a ventilation device of the electric power tool, wherein the airflow gear case comprises an opening to receive a working spindle and bearings of the electric power tool; and an airflow sleeve covering the airflow gear case, wherein gaps between the airflow gear case and the airflow sleeve define an airflow path for introducing at least a portion of the received airflow within the handle member. - View Dependent Claims (12, 13)
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14. A spindle lock for an electric power tool, the electric power tool comprising an electric motor mounted within a motor housing and a spindle mounted within a gear case for rotation about an axis, the spindle driven by the electric motor, the spindle lock comprising:
an elongated flexible member having a middle member located between first and second connecting members, wherein the first connecting member is engaged with a corresponding surface of the gear case and the second connecting member is engaged with a corresponding surface of the spindle to lock the spindle against rotation about the axis. - View Dependent Claims (15, 16, 17, 18, 19, 20)
Specification