Electric power tool powered by battery pack and adapter therefor
First Claim
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1. An adapter for coupling at least one battery pack with an electric power tool, the adapter comprising:
- a battery-side unit configured to attach the at least one battery pack and be electrically connected to the at least one battery pack that is attached;
at least two tool-side units configured to attach the electric power tool and be electrically connected to the attached electric power tool; and
a voltage regulator circuit configured to be interposed between the at least one battery pack attached to the battery-side unit and the electric power tool attached to the tool-side unit, and regulate a supply voltage from the at least one battery pack to the electric power tool to a level corresponding to a rated voltage of the electric power tool,wherein;
the at least two tool-side units include a first tool-side unit and a second tool-side unit;
the first tool-side unit and the second tool-side unit are configured to be alternatively attachable to the battery-side unit;
the first tool-side unit is configured to be attachable to an electric power tool having a first rated voltage and not to be attachable to an electric power tool having a second rated voltage;
the second tool-side unit is configured to be attachable to the electric power tool having the second rated voltage and not to be attachable to the electric power tool having the first rated voltage; and
the voltage regulator circuit is configured to regulate the supply power to a level being substantially equal to the first rated voltage when the battery-side unit is attached to the first tool-side unit, and regulate the supply power to a level being substantially equal to the second rated voltage when the battery-side unit is attached to the second tool-side unit;
each tool-side unit is provided with storing means configured to store data by which an identification can be made from the other tool-side unit; and
the voltage regulator circuit is configured to read the data from the storing means of the tool-side unit to identify the tool-side unit attached to the battery-side unit.
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Abstract
An adapter for an electric power tool couples battery packs with the electric power tool. The adapter is provided with a voltage regulator circuit interposed between the battery packs and the electric power tool. The voltage regulator circuit regulates a supply voltage from the battery packs to the electric power tool to a level corresponding to a rated voltage of the electric power tool. The voltage regulator is capable of raising the supply voltage higher than nominal voltages of the battery packs.
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Citations
13 Claims
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1. An adapter for coupling at least one battery pack with an electric power tool, the adapter comprising:
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a battery-side unit configured to attach the at least one battery pack and be electrically connected to the at least one battery pack that is attached; at least two tool-side units configured to attach the electric power tool and be electrically connected to the attached electric power tool; and a voltage regulator circuit configured to be interposed between the at least one battery pack attached to the battery-side unit and the electric power tool attached to the tool-side unit, and regulate a supply voltage from the at least one battery pack to the electric power tool to a level corresponding to a rated voltage of the electric power tool, wherein; the at least two tool-side units include a first tool-side unit and a second tool-side unit; the first tool-side unit and the second tool-side unit are configured to be alternatively attachable to the battery-side unit; the first tool-side unit is configured to be attachable to an electric power tool having a first rated voltage and not to be attachable to an electric power tool having a second rated voltage; the second tool-side unit is configured to be attachable to the electric power tool having the second rated voltage and not to be attachable to the electric power tool having the first rated voltage; and the voltage regulator circuit is configured to regulate the supply power to a level being substantially equal to the first rated voltage when the battery-side unit is attached to the first tool-side unit, and regulate the supply power to a level being substantially equal to the second rated voltage when the battery-side unit is attached to the second tool-side unit; each tool-side unit is provided with storing means configured to store data by which an identification can be made from the other tool-side unit; and the voltage regulator circuit is configured to read the data from the storing means of the tool-side unit to identify the tool-side unit attached to the battery-side unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An adapter for coupling at least one battery pack with an electric power tool, the adapter comprising:
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a battery-side unit configured to attach the at least one battery pack and be electrically connected to the at least one battery pack that is attached; at least two tool-side units each configured to attach the electric power tool and be electrically connected to the attached electric power tool; and a voltage regulator circuit configured to be interposed between the at least one battery pack attached to the battery-side unit and the electric power tool attached to the tool-side unit, and regulate a supply voltage from the at least one battery pack to the electric power tool to a level corresponding to a rated voltage of the electric power tool, wherein; the at least two tool-side units include a first tool-side unit and a second tool-side unit; the first tool-side unit comprises a first electric cord having a tip end coupled with the first tool-side unit; the second tool-side unit comprises a second electric cord having a tip end coupled with the second tool-side unit; the battery-side unit comprises a first cord connection for a base end of the first electric cord, and a second cord connection for connecting for a base end of the second electric cord; the first tool-side unit is configured to be attachable to an electric power tool having a first rated voltage and not to be attachable to an electric power tool having a second rated voltage; the second tool-side unit is configured to be attachable to the electric power tool having the second rated voltage and not to be attachable to the electric power tool having the first rated voltage; the base ends of the first and second electric cords have shapes different from one another; the first cord connection is configured to accept the base end of the first electric cord, and not to accept the base end of the second electric cord; the second cord connection is configured to accept the base end of the second electric cord, and not to accept the base end of the first electric cord; and the voltage regulator circuit is configured to output a voltage regulated to a level being substantially equal to the first rated voltage from the first cord connection, and output a voltage regulated to a level being substantially equal to the second rated voltage from the second cord connection. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification