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Protective device for a hand machine tool

一种手持式工具机、保护装置的技术，应用在制造工具、金属加工机械零件、磨削/抛光安全装置等方向，能够解决手持式工具机持握困难、不能足够地支持吸尘等问题，达到良好运动自由度、良好可操作性、良好排尘的效果

Inactive Publication Date: 2009-08-12
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Protective devices are known for hand-held power tools, in particular for bent-handle grinders, the protective cover of which, although providing some protection during grinding work, does not adequately support dust extraction, despite the usual use of powerful external vacuum cleaner
Furthermore, the usual radial guidance of the suction hose makes it difficult to handle the hand-held power tool due to the radial protrusion of the suction hose

Method used

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  • Protective device for a hand machine tool
  • Protective device for a hand machine tool
  • Protective device for a hand machine tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] figure 1 A side view of a drop handle grinder 20 is shown, the motor housing 22 of which extends substantially vertically upwards and accommodates an electric motor (not shown).

[0047] Vertically downwards according to the viewing direction, a transmission housing 24 is connected on the motor housing 22, and its output shaft 26 ( Figure 13 ) extends perpendicularly to the plane of the illustration and is fitted with a tool at its free end. The tool is a grinding wheel 28 . The grinding wheel rotates clockwise in the direction of rotation 29 and penetrates into the workpiece 30 , regrinding a groove 32 in the workpiece from the right.

[0048] Viewed on the left in the direction of viewing, the motor housing 22 has a sliding key 34 for switching on and off.

[0049] A protective device 33 is fixed on the bend grinder 20 . The protective device comprises a fastening device and a protective cover 40 . The fastening device is designed as a pivot arm 38 . The swing ...

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Abstract

The invention relates to a protective device (33) for a hand-held power tool, in particular a hand-held grinder, having a protective cover (40) which is designed to at least partially surround a disc-shaped Rotary cutter, and has a dust discharge pipe (52), and wherein, protective cover (40) has an outlet area, and in this outlet region, during operation, tool partially protrudes from protective cover (40), and protects The hood ( 40 ) comprises a slide ( 50 ) in the region of the outlet, wherein the dust extraction pipe ( 52 ) is arranged directly adjacent to the slide.

Description

technical field [0001] The invention relates to a protective device for a hand-held power tool, in particular a hand-held grinder. The invention also relates to a hand-held power tool. Background technique [0002] Protective devices are known for hand-held power tools, in particular for bent-handle grinders, the protective cover of which, although providing some protection during grinding work, does not adequately support dust extraction, despite the usual use of powerful External vacuum cleaner. Furthermore, the usual radial guidance of the suction hose makes handling of the hand-held power tool difficult due to the radial protrusion of the suction hose. Contents of the invention [0003] The invention proposes a protective device for a hand-held power tool, which has a protective cover, which is designed to at least partially surround a disk-shaped rotary tool, and has a dust extraction duct, wherein the protective The hood has an exit region, in which the tool protr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B55/10B24B23/02B24B27/08B23Q11/00B24B55/05
CPCB24B23/028Y10T83/7734B23Q11/0046B24B55/052
Inventor 迪特尔·文特米克·福格特阿尔贝特·克莱德约阿希姆·沙多库尔特·内夫乌尔里希·米勒·博伊森
Owner ROBERT BOSCH GMBH
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