# US 2013/0154584 A1 · Electric tool adaptor and electric tool system using same

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- Number: US 2013/0154584 A1
- Document ID: US20130154584A1
- Status: Published application
- Kind: A1
- Application number: 13/813,972
- Filed: 2011-07-21
- Published: 2013-06-20
- Earliest claimed: 2010-08-04
- Assignees: Panasonic Corporation
- Inventors: Masaaki Sakaue; Masaki Ikeda; Akira Kawai
- Web page: https://patentgrep.com/patent/US20130154584A1

## CPC

- G05F 1/46: wherein the variable actually regulated by the final control device is DC (G05F1/625 takes precedence)
- B25F 5/00: Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- G05F: SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)}

## Abstract

An electric tool adaptor is configured to be disposed between an electric tool and a battery pack and attached detachably with respect to the electric tool and the battery pack. This adaptor includes a DC-DC converter configured to increase or reduce a voltage of the battery pack to convert the voltage to a drive voltage of the electric tool and supply the drive voltage to the electric tool.

## Claims

### Claim 1

An electric tool adaptor, configured to be disposed between an electric tool and a battery pack and attached detachably with respect to the electric tool and the battery pack,
wherein the adaptor comprises a DC-DC converter configured to increase or reduce a voltage of the battery pack to convert this voltage to a drive voltage of the electric tool and supply the drive voltage to the electric tool.

### Claim 2 (depends on 1)

The electric tool adaptor according to claim 1, wherein
the drive voltage is a rated voltage of the electric tool, and
the DC-DC converter is a step-up/down converter.

### Claim 3 (depends on 2)

The electric tool adaptor according to claim 2, wherein the step-up/down converter is configured to convert the voltage of the battery pack to a plurality of levels of the rated voltage.

### Claim 4 (depends on 1)

The electric tool adaptor according to claim 1, wherein
the electric tool and the battery pack are a first electric tool configured to use a first battery pack and a second battery pack for a second electric tool, respectively,
the first battery pack for the first electric tool is configured to generate a first electromotive force for driving the first electric tool while the second battery pack for the second electric tool is configured to generate a second electromotive force for driving the second electric tool, and
the first electromotive force and the second electromotive force correspond to a first drive voltage of the first electric tool and a second drive voltage of the second electric tool, respectively and are different from each other.

### Claim 5 (depends on 4)

The electric tool adaptor according to claim 4, further comprising:
a tool connection portion configured to be detachably attached to the first electric tool; and
a battery connection portion configured to be detachably attached to the second battery pack.

### Claim 6 (depends on 5)

The electric tool adaptor according to claim 5, wherein
the first and second electric tools comprise first and second attachment portions for providing attachment of the first and second battery packs to the first and second electric tools, respectively,
the first and second battery packs comprise first and second attached portions configured to be attached to the first and second attachment portions, respectively, and
the tool connection portion has a shape corresponding to the first attached portion while the battery connection portion has a shape corresponding to the second attachment portion.

### Claim 7 (depends on 2)

An electric tool system, wherein
the electric tool adaptor according to claim 2 is used, and
any one of a plurality of types of battery packs which are different from each other can be attached to the electric tool having a predetermined rated voltage.

### Claim 8 (depends on 3)

An electric tool system, wherein
the electric tool adaptor according to claim 3 is used, and
any one of a plurality of types of battery packs which are different from each other can be attached to any one of a plurality of types of electric tools having different rated voltages.