Handheld electrical tool with a suction module for a dust separation device

A technology of hand-held power tools and power tools, which is applied in the field of drilling rigs, impact drills or hammer drills, and can solve the problems of the operability of hand-held power tools and achieve the effect of completely maintaining the operability

Active Publication Date: 2013-02-13
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Owing to the large overall dimensions of the known suction device, the operability of the hand-held electric power tool is affected

Method used

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  • Handheld electrical tool with a suction module for a dust separation device
  • Handheld electrical tool with a suction module for a dust separation device
  • Handheld electrical tool with a suction module for a dust separation device

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] FIG. 1 shows a hand-held electric power tool 1 designed as a hammer drill 2 or hammer drill 2 . It has the design of a pistol due to the handle part 3 and a main part 4 extending at an angle to the handle part 3 and having a motor part and a transmission part. The transmission part includes an impact mechanism. The motor part forms a first functional part 5 and the transmission part forms a second functional part 6 , wherein a suction module 7 is arranged between the two functional parts 5 and 6 . The suction module 7 is designed as a disk element 8 with a thickness d. In the region adjoining the suction module 7 , the cross-sectional profile of the first functional part 5 is substantially identical to the cross-sectional profile of the disk element 8 . Furthermore, the cross-sectional profile of the region of the second functional component 6 adjoining the suction module 7 substantially corresponds to the cross-sectional profile of the suction module 7 , that is to s...

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PUM

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Abstract

The machine (1) has a functional part (5) with an electric motor and another functional part (6) with transmission and / or a striking mechanism, where the parts are connected with one another by a suction module (7) of a separating device. The module is downstream with respect to a suction air flow. The module is designed as a disk element (8), and has an outer contour (10) adapted to adjacent outer contours (11, 12) of the parts. The module has a suction fan wheel (14) coupled with a motor shaft of the motor, and has evenly formed contact surfaces at opposite sides for the parts.

Description

technical field [0001] The invention relates to a hand-held electric power tool, in particular a drill, impact drill or hammer drill. Background technique [0002] The use of hand-held electric power tools, for example in the form of hammer drills, leads to the generation of cuttings material. In the case of diamonds, concrete, etc., this cutting material is particularly abrasive and also leads to contamination. It is therefore known to provide such hand-held electric power tools with a separating device in order to avoid contamination by suction-generated material (hereinafter referred to as machining dust). [0003] It is known to disengage devices associated with hand-held power tools which have a suction fan impeller which is driven via the power take-off shaft of the hand-held power tool. In addition, suction devices are known which have a suction fan impeller which is driven by a suction fan electric motor. The suction fan electric motor is supplied with the require...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25F5/00B23B45/02B25D17/18
CPCB23Q11/0046B25D17/20
Inventor O·鲍曼T·伯恩哈特H·施密德J·伦纳茨J·博赫特
Owner ROBERT BOSCH GMBH
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