Insulation system for a tool, tool, and method for mounting the insulation system on the tool

Patent metadata

Field	Value
Publication number	US-10991489-B2
Application number	US-201414505172-A
Country	US
Kind code	B2
Filing date	Oct 2, 2014
Priority date	Oct 4, 2013
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

An insulation system for a tool includes a first element configured to electrically insulate an output unit of the tool from a detachably receivable tool element of the tool that is configured to process a workpiece. The insulation system further includes and a second element configured to electrically insulate the output unit toward the outside. A method includes mounting the insulation system on the tool.

First claim

What is claimed is:

1. An insulation system for a tool, comprising:
an extension configured to electrically insulate an output unit of the tool from a detachably receivable tool element of the tool, the output unit extending outwardly from a housing of the tool and configured to drive the detachably receivable tool element to perform a mechanical process on a workpiece, wherein the extension is configured to extend between the output unit and the detachably receivable tool element along a longitudinal axis, with a first end portion of the extension operably connected to the output unit and a second end portion of the extension spaced apart from the first end portion along the longitudinal axis and operably connected to the detachably receivable tool element; and
a housing configured to electrically insulate the output unit in a direction radially outwardly of the output unit relative to the longitudinal axis.

2. The insulation system according to claim 1 , further comprising:
a receiving element operably connected to the second end portion and configured to detachably receive the detachably receivable tool element, wherein:
the housing is configured to receive the output unit and the receiving element at least partially therein.

3. The insulation system according to claim 1 , wherein:
the housing has a bearing configured to reduce radial play of an insulating output shaft, and
the insulating output shaft comprises a drive flange, the extension, and the receiving element.

4. The insulation system according to claim 1 , wherein the housing is configured such that the receiving element is removable only with removal of the housing from the tool.

5. The insulation system according to claim 1 , wherein the housing engages around one end of the tool and/or is a plastics housing.

6. The insulation system according to claim 1 , wherein the extension is an electrically insulating and insulated element that fits by way of a form-fitting toothing at the first end portion in a drive flange, wherein the drive flange is configured to be arranged in the output unit, and wherein the output unit is a quick-change chuck.

7. A tool, comprising:
an output unit extending outwardly from a housing of the tool and configured to drive a detachably receivable tool element to perform a mechanical process on a workpiece;
an insulation system extension extending between the output unit and the detachably receivable tool element along a longitudinal axis, with a first end portion of the extension operably connected to the output unit and a second end portion of the extension spaced apart from the first end portion along the longitudinal axis and operably connected to the detachably receivable tool element, the extension configured to electrically insulate the output unit from a receiving element, the receiving element configured to detachably receive the detachably receivable tool element; and
an insulation system housing configured to electrically insulate the output unit in a direction radially outwardly of the output unit relative to the longitudinal axis.

8. The tool according to claim 7 , wherein the tool is configured as one or more of a cordless tool and a screwdriving/drilling tool.

9. A method for mounting an insulation system for a tool on the tool, comprising:
providing an extension configured to extend between an output unit of the tool and a detachably receivable tool element along a longitudinal axis, with a first end portion of the extension operably connected to the output unit and a second end portion of the extension spaced apart from the first end portion along the longitudinal axis and operably connected to the detachably receivable tool element;
mounting the extension to the output unit of the tool, the output unit extending outwardly from a housing of the tool such that the extension is arranged so as to electrically insulate the output unit from the detachably mountable tool element of the tool, the detachably mountable tool element configured to perform a mechanical process on a workpiece, the output unit configured to drive the detachably mounted tool element; and
mounting an extension system housing radially outwardly of the output unit such that the extension system housing is arranged to electrically insulate the output unit in a radially outward direction.

10. The method according to claim 9 , wherein:
the extension system housing is configured as a one-piece plastics housing,
mounting the extension system housing includes pushing at least a portion of the extension system housing over a receiving element, the extension, and then the output unit, and
the receiving element is configured to detachably receive the detachably receivable tool element.

11. The method according to claim 10 , further comprising:
fastening the extension system housing to the housing of the tool by way of at least one radial fastening element.

12. The method according to claim 9 , further comprising:
fastening the extension system housing to the housing of the tool by way of at least one radial fastening element.

13. The insulation system according to claim 2 , wherein:
the extension system housing encloses the output unit and the extension, and
the receiving element projects out of the extension system housing.

14. The insulation system according to claim 1 , further comprising:
a receiving element configured to detachably receive the detachably receivable tool element, wherein:
the housing encloses the output unit and the extension, and
the receiving element projects out of the housing.

15. The insulation system according to claim 3 , wherein the housing has a collar configured to bound a gripping region for the user of the tool.

16. The insulation system according to claim 1 , wherein the housing has a collar configured to bound a gripping region for the user of the tool.

Assignees

• Bosch Gmbh Robert

Inventors

• Schneider Joerg
• Kugler Achim

Classifications

• B25F5/02 Primary

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• H01B17/56 Primary

  Insulating bodies · CPC title

• B25F3/00

  Associations of tools for different working operations with one portable power-drive means; Adapters therefor · CPC title

• B25G1/125

  for screwdrivers, wrenches or spanners · CPC title

• B25B23/0035

  Connection means between socket or screwdriver bit and tool · CPC title