Electric Hand Tool Device and Battery Pack Therefor

• US 20080238609A1
• Filed: 11/18/2005
• Published: 10/02/2008
• Est. Priority Date: 11/18/2005
• Status: Active Grant

• Current Assignee: Metabowerke GMBH (Koki Holdings Co., Ltd.)
• Original Assignee: Metabowerke GMBH (Koki Holdings Co., Ltd.)
• Inventors: Wiesner, Bernd, Graeber, Jochen
• Granted Patent: US 8,169,298 B2
• Time in Patent Office: Days
• US Class Current: 340/5.2
• CPC Class Codes: B25F 5/00 Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• CPC Class Codes: G08B 13/1409 for removal detection of electrical appliances by detecting their physical disconnection from an electrical system, e.g. using a switch incorporated in the plug connector

Abstract

The invention relates to a battery-operated electric hand tool device (2) comprising control electronics (14), a wirelessly and contactlessly responding transceiver (12), and a storage unit (16) in which an authorization code is stored, a locked mode of operation and a released mode of operation being distinguishable. In order to improve theft protection, a wire-bound or wireless interface (22) is provided from the control electronics (14) of the electric hand tool device to a battery pack (4) such that locking data can be transmitted from the control electronics (14) of the electric hand tool device (2) to the battery pack (4), be stored in a storage device (24) of the battery pack (4), and be read out of the storage device (24) again.

Claims

1. A battery operated hand-held power tool (2) with a control electronics (14) and a transceiving device (12) that can be addressed in a wireless and non-contact fashion as well as a storage device (16) in which an authorization code is stored, whereby a locked mode of operation and a released mode of operation can be distinguished, characterized in that a wired or a wireless interface (22) from the control electronics (14) of the hand-held power tool to a battery pack (4) is provided, such that locking data can be transmitted from the control electronics (14) of the hand-held power tool (2) to the battery pack (4) and can be stored in a storage device (24) of the battery pack (4) and can be retrieved again from the storage device (24).

2. A hand-held power tool as set forth in claim 1, characterized in that the control electronics (14) of the hand-held power tool is designed such that the locking data are transmitted to the battery pack (4) or retrieved from the storage device (24) of the battery pack (4) via the interface (22) at one or more predetermined times or time intervals or when specified or specifiable conditions are present.

3. A hand-held power tool as set forth in claim 2, characterized in that the control electronics (14) of the hand-held power tool is designed such that when connecting a battery pack (4) with the hand-held power tool (2), an authorization code that is stored in the storage device (16) of the hand-held power tool (2) is automatically transmitted via the interface (22) to the battery pack (4) and is there stored in the storage device (24) of the battery pack (4) and/or an authorization code that is stored in the storage device (24) of the battery pack (4) is retrieved and provided to the control electronics (14) of the hand-held power tool via the interface (22).

4. A hand-held power tool as set forth in claim 3, characterized in that the control electronics (14) and the transceiving device (12) of the hand-held power tool are designed such that starting with the released mode of operation of the hand-held power tool (2) an authorization code signal request is transmitted to an external transceiving device (8) at one or more predetermined times or when specified or specifiable conditions are present.

5. A hand-held power tool as set forth in claim 4, characterized in that the external transceiving device (8) is designed such that upon reception of an authorization code signal request, a transmission operating mode can be activated and an authorization code signal is transmitted to the transceiving device (12) of the hand-held power tool (2) and that thereafter the transmission operating mode can be deactivated again automatically.

6. A hand-held power tool as set forth in claim 5, characterized in that the control electronics (14) and the transceiving device (12) of the hand-held power tool (2) are designed such that after evaluation of the received authorization code signal and comparison with the authorization code stored in the storage device (16) of the hand-held power tool and with the authorization code of the hand-held power tool (2) stored in the storage device (24) of the battery pack (4) and readable via the interface (22), the hand-held power tool (2) either remains in the released mode of operation or is placed in the locked mode of operation.

7. A hand-held power tool as set forth in claim 6, characterized by a display device for displaying the operating mode of the hand-held power tool (2) and the operating mode of the battery pack (4).

8. A hand-held power tool as set forth in claim 7, characterized in that the battery pack (4) exhibits its own transceiving device (28) that can be addressed in a wireless and non-contact fashion and that forms an interface (30) to an external transceiving device (8).

11. A hand-held power tool as set forth in claim 1, characterized in that the control electronics (14) of the hand-held power tool is designed such that when connecting a battery pack (4) with the hand-held power tool (2), an authorization code that is stored in the storage device (16) of the hand-held power tool (2) is automatically transmitted via the interface (22) to the battery pack (4) and is there stored in the storage device (24) of the battery pack (4) and/or an authorization code that is stored in the storage device (24) of the battery pack (4) is retrieved and provided to the control electronics (14) of the hand-held power tool via the interface (22).

12. A hand-held power tool as set forth in claim 1, characterized in that the control electronics (14) and the transceiving device (12) of the hand-held power tool are designed such that starting with the released mode of operation of the hand-held power tool (2) an authorization code signal request is transmitted to an external transceiving device (8) at one or more predetermined times or when specified or specifiable conditions are present.

13. A hand-held power tool as set forth in claim 2, characterized in that the control electronics (14) and the transceiving device (12) of the hand-held power tool are designed such that starting with the released mode of operation of the hand-held power tool (2) an authorization code signal request is transmitted to an external transceiving device (8) at one or more predetermined times or when specified or specifiable conditions are present.

9. A battery pack for a hand-held power tool (2), characterized in that a storage device (24), where an authorization code can be stored, and a wired or wireless interface (22) to a control electronics (14) of a hand-held power tool (2) or a transceiving device (28) that can be addressed in a wireless or non-contact fashion, for communicating with an external transceiving device (8) of an external device (6) is provided.

10. A battery pack as set forth in claim 9, characterized in that additionally a control electronics (26) is provided by which a locked mode of operation and a released mode of operation of the battery pack can be distinguished.