Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Electric hand tool machine having a tool locking system

A hand-held machine tool and tool lock technology, applied in the direction of manufacturing tools, striking tools, light impact tools, etc., can solve the problems of injury, danger, damage to electric hand-held machine tools, etc., and achieve the goal of reducing wear and high axial force Effect

Inactive Publication Date: 2008-06-25
ROBERT BOSCH GMBH
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, both hands of the operator must be removed from the grip handle of the electric power tool, so that the operator can no longer securely hold the electric power tool
Especially when working on narrow scaffolding, there is a high risk when changing tools that the tool or even the entire electric hand tool slips out of the operator's hand and falls downwards
Risk of injury and damage to the electric hand tool as a result
In addition, this necessary grip is not very comfortable for the operator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric hand tool machine having a tool locking system
  • Electric hand tool machine having a tool locking system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] FIG. 1 shows a longitudinal section through a part of an electric hand-held power tool 1 in an exemplary embodiment of the invention, which mechanism constitutes a hammer drill. Mainly, the tool receiving device 2 of the electric hand-held power tool 1 is shown. The tool holder 2 has a substantially hollow-cylindrical holder body 3 into which a tool shank 4 of a tool 5 , not fully shown, is inserted. The tool 5 has an axis of rotation 6 which corresponds to a working axis 7 of the electric hand-held power tool. The receiving device body 3 has a plurality of perforations 8 distributed on the circumference, into which a locking body 9 is inserted in each case, wherein the perforations 8 are formed (axially) longer than the locking bodies 9 so that they can be axially The ground moves in the perforation 8. On its outer circumference, the tool shaft 4 has a plurality of longitudinal grooves 10 protruding beyond the axial section with locking bodies 9 , into which each loc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an electric hand tool machine (1) having a tool locking system (25), which for the purpose of unlocking has an actuating element (16) that is displaceable counter to spring action axially into an unlocking position, wherein the actuating element (16) is fixable in unlocking position by means of a bayonet catch (41).

Description

technical field [0001] The invention relates to an electric hand-held power tool with a tool locking system which, for unlocking, has an actuating element that can be moved axially against the action of a spring into an unlocked position. Background technique [0002] Electric hand-held power tools of the above-mentioned type are known. There are therefore electric hand-held power tools, such as impact drills, which have a tool locking system by means of which a tool inserted into the electric hand-held power tool, such as a drill bit, can be secured as long as the operating element is locked. words in the stop position. For this purpose, the tool locking system has locking bodies which engage radially in axially extending grooves of the tool or tool shank, wherein the tool has a defined movement in the axial direction in the locked state. gap. In this case, radial deflection movements of the locking body are prevented by the axially displaceable locking element when the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/113B25D17/08
CPCB25D2216/0069B25D17/088B25D2217/0038B25D2250/325B23B31/113
Inventor H·申德勒P·勒纳特
Owner ROBERT BOSCH GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com