Cordless hand held power tool with powered accessory
AssigneeBlack & Decker Inc.
InventorHorst Grossman
Life of this patent
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Abstract
An accessory system, such as a dust collection system (40) of a hand held power tool, such as a drilling and/or hammering tool comprising, the tool, an accessory unit (40) comprising a separate motor for powering the unit and releasably mountable on the tool, and a battery pack (4). When the accessory unit is not required, the battery pack can be mounted directly on the tool for powering to tool and when the accessory unit is required the battery pack can be mounted on the accessory unit for powering the accessory unit and, when the accessory unit is mounted on the tool, for powering the tool via the accessory unit.
Claims20
An accessory system of a cordless hand held power tool, comprising:
- a cordless hand held power tool including a first motor;
- an accessory unit (40) comprising a second motor (49) for powering the unit, which accessory unit is releasably mountable on the tool;
- and
- a battery pack (4);
- characterised in that the battery pack can be mounted on the accessory unit for powering the accessory unit and, when the accessory unit is mounted on the tool, for powering the tool via the accessory unit.
An accessory unit (40) for a cordless hand held power tool which is releasably mountable on such a tool and the accessory unit comprises:
- a battery pack;
- a separate motor (49) for powering the accessory unit;
- a first interface (14, X) via which the accessory unit can be mechanically mounted and electrically connected to the power tool;
- and
- a second interface (64, W) via which the accessory unit can be mechanically mounted and electrically connected to the battery pack (4), which battery pack is for powering the motor of the accessory unit and, when the accessory unit is mounted on the power tool, for powering the power tool via the accessory unit.
Dependencies are inferred from the claim text.