Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hand held machine tool with dust extraction

A technology of hand tools and dust collection devices, which is applied in the direction of manufacturing tools, portable motorized devices, metal processing machinery parts, etc. It can solve the problems of fine dust passing, clogging, emptying and cleaning troubles, etc., and achieve improved filtration and air penetration The effect of high performance and large filter area

Inactive Publication Date: 2003-12-03
ROBERT BOSCH GMBH
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of plastic box is easy to allow fine dust to pass through or clog, and it is more troublesome to empty and clean

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
  • Hand held machine tool with dust extraction
  • Hand held machine tool with dust extraction
  • Hand held machine tool with dust extraction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] 1 shows a longitudinal sectional view of a hand power tool 10 designed as a superfinishing grinder, with a housing 12 having a handle 14 with a switch 15 and a tool 16 configured as a grinding plate with a through hole. It is movably fixed on the bottom surface of the machine tool. The hand power tool 10 has a connection cable 18 on the rear end of the handle 14 and a fan wheel 19 inside the housing 12 . When the hand tool machine is in operation, the fan impeller creates a negative pressure above the grinding plate 16 or between the grinding plate 16 and a workpiece, through which, when the hand tool machine 10 is running, the grinding dust passes through the through holes of the grinding plate 16 to be absorbed Suction is fed via a discharge connection 20 of the housing 12 and via a blow-in connection 22 into a dust collection box 21 .

[0036] The discharge connection 20 carries an injection connection 22 of a dimensionally stable dust box 21 fixed at one end. Dust...

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 a hand-held machine tool (10) comprising a dust extraction system (19) which is integrated into the housing (12) of said machine tool and a dust output tube (20) which is mounted downstream of the dust extraction system (19) and to which a dust-proof dust collection container (21) presenting a dust aspiration tube (22) can be fixed for collecting the dust. To render said machine tool especially suitable for the collection of grinding dust the invention provides for several side walls (34) of the box-like dust collection container (21) to have air outlet openings (40) and to present a dust-proof filter element (48), notably a folded filter, on the inside.

Description

technical field [0001] The invention relates to a hand tool machine. Background technique [0002] A percussion drill is known from US 5,467,835 with a dust box and a downstream blower, by means of which the dust falling from the drilling can be sucked into the dust box. The suction air generated by the fan enters a suction channel within the tool area and through this channel into the dust box. In the dust box, the suction air passes through a dust filter designed as a folded filter. The drilling dust is separated by the filter and collected in the dust box. The dust box has an openable bottom plate for taking out the folded filter and emptying the drilling dust. The dust box is installed together with the fan in a housing which can be removed by means of a more complex joint. connected to the impact drill. [0003] The dust box of known percussion drills can only be emptied with considerable effort, and the replacement of the folded filter is complicated here. In addit...

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 Patents(China)
IPC IPC(8): B23Q11/00B24B23/00B24B55/10
CPCB23Q11/0046B24B55/10
Inventor 多丽斯·赖希斯特芬·温施
Owner ROBERT BOSCH GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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