PORTABLE ELECTRIC POWER TOOL WITH RADIO COMMUNICATION DEVICE

• US 20130277078A1
• Filed: 06/29/2011
• Published: 10/24/2013
• Est. Priority Date: 09/30/2010
• Status: Abandoned Application

• Current Assignee: Atlas Copco Industrial Technique Ab (Atlas Copco AB)
• Original Assignee: Atlas Copco Industrial Technique Ab (Atlas Copco AB)
• Inventors: Wallgren, Carl Johan Erik
• Application Number:
  US13/824,628
• Publication Number:
  US 20130277078A1
• Time in Patent Office: Days
• US Class Current: 173/46
• 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: Y02E 60/10 Energy storage using batteries

Abstract

A portable electric power tool including a housing (10) with a connection terminal (20) for connection of a voltage supply source (22), an electric motor (14), an onboard operation control unit (16) and a radio communication device(17) for communicating tool operation and operation result data between the operation control (16) unit and a stationary data processing unit (18), and a back-up voltage accumulating device (25) arranged to keep up continuously a voltage supply to the control unit (16) and a radio communication device (17) at disconnection of the voltage supply source (22).

Claims

1. A portable electric power tool, comprising:

a housing with a connection terminal for connection of a voltage supply source;

an electric motor;

an onboard operation control unit;

a radio communication device for communicating operation data and operation result data between the power tool and a stationary data processing unit; and

back-up voltage accumulating device which is provided onboard the power tool to keep up continuously a voltage supply to the operation control unit and the radio communication device at occurring disconnections of the voltage supply source, so as to reduce delay for reassuming an operation condition of the tool after re-connection of the voltage supply source.

2. The power tool according to claim 1, wherein said back-up voltage accumulating device is arranged to supply voltage only while the voltage supply source is disconnected and to be recharged by the voltage supply source when the voltage supply source is re-connected.

3. The power tool according to claim 1, wherein said voltage supply source is a rechargeable battery unit, and said connection terminal comprises a docking portion formed on the housing and adapted to receive one of at least two exchangeable battery units.

4. The power tool according to claim 1, wherein said back-up voltage accumulating device comprises an auxiliary battery unit detachably mounted on the housing.

5. The power tool according to claim 1, wherein said voltage supply source is an electric mains system connected to the power tool via a cable, and said connection terminal is a cable connecting device.

6. The power tool according to claim 2, wherein said voltage supply source is a rechargeable battery unit, and said connection terminal comprises a docking portion formed on the housing and adapted to receive one of at least two exchangeable battery units.

7. The power tool according to claim 2, wherein said back-up voltage accumulating device comprises an auxiliary battery unit detachably mounted on the housing.

8. The power tool according to claim 3, wherein said back-up voltage accumulating device comprises an auxiliary battery unit detachably mounted on the housing.

9. The power tool according to claim 6, wherein said back-up voltage accumulating device comprises an auxiliary battery unit detachably mounted on the housing.

10. The power tool according to claim 2, wherein said voltage supply source is an electric mains system connected to the power tool via a cable, and said connection terminal is a cable connecting device.