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Hand machine tool comprising dust extraction device

A technology of hand-held machine tools and vacuum tubes, which is applied in the direction of manufacturing tools, metal processing machinery parts, grinding/polishing safety devices, etc., and can solve the problems of non-reusable, cleaning, cleaning, etc.

Inactive Publication Date: 2009-07-29
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The filter is sensitive to moisture and cannot be cleaned beyond a certain degree of soiling and cannot be cleaned at all in water or solvents and therefore cannot be reused

Method used

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  • Hand machine tool comprising dust extraction device
  • Hand machine tool comprising dust extraction device
  • Hand machine tool comprising dust extraction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 A hand-held power tool 10 designed as a hand-held superfinishing machine is shown. It comprises a housing 12 which has at the top a handle 14 which extends to the left as viewed in the direction of viewing and which has a switch switch 15 (not shown) on its underside. Via the switch key 15 , an electric motor provided with a motor shaft 20 in the housing 12 can be connected to a power supply for supplying electric current.

[0020] When the switch key 15 is operated, the motor shaft 20 of the motor rotates and a fan 19 rotates therewith, which sucks the grinding dust collected under the grinding disc 16 from the workpiece not shown and passes through the suction pipe 22 Blow into the dust box 24 via the dust inlet connection 26 . The dust box 24 is formed from four side walls 27 and a bottom 29 and can be closed dust-tight by a matching cover 28 . The cover 28 has a filter plate 30 made of a porous microporous filter material on its side pointing towards the...

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PUM

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Abstract

The hand-held power tool (10), in particular with an integrated dust suction device, has a housing (12) with a dust suction tube (22), a dust container (24) that can The chip inlet connection (26) is connected to the dust suction pipe, wherein a side wall (27) of the dust box (24) has through-holes (25), which are covered by a filter dust-tight, in order to have Benefit cost and environment, the present invention proposes: filter (30,31,32,33,34,35,36,37,38,300) is made of a planar plate made of microporous material, the surface of the plate is augmented by a certain structure.

Description

technical field [0001] The invention relates to a hand-held power tool, in particular with an integrated dust suction device, with a housing, which carries a dust suction pipe, a dust box can be connected with the dust suction by means of its dust inlet connection A pipe connection, wherein a side wall of the dust box has through-openings, which are covered dust-tightly by a filter. Background technique [0002] A hand-held power tool with a dust container is known from GB 2,343,393, which enables efficient dust extraction with a minimum emission of fine dust. [0003] The vacuuming of the known hand-held power tool works by means of a fan which rotates with the drive motor of the hand-held power tool. [0004] The dust box for collecting grinding dust has a pleated filter or microfilter made of cellulose. Such filters are sensitive to moisture and cannot be cleaned beyond a certain degree of soiling and cannot be cleaned at all in water or solvents and therefore cannot be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B55/10B23Q11/00B24B23/00
CPCB24B55/105B23Q11/0046Y02P70/10
Inventor 多丽丝·赖希斯特凡·温施
Owner ROBERT BOSCH GMBH