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Protective sensor system for a hand-held power tool

A power tool, hand-held technology, applied in the field of hand-held power tools, can solve problems such as high circuit costs, and achieve the effect of ensuring work safety and reducing undesired disconnection

Inactive Publication Date: 2012-07-11
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, very high circuit costs are required

Method used

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  • Protective sensor system for a hand-held power tool
  • Protective sensor system for a hand-held power tool
  • Protective sensor system for a hand-held power tool

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] The same reference numerals are used to designate the same or same type of components in the figures.

[0028] To illustrate the present invention, figure 1 and figure 2 Various examples of a hand-held power tool 10 are shown. figure 1 A cutting device having an elongated elongated housing shape is shown; figure 2 A drill having a T-shaped housing shape is shown.

[0029] Hand-held electric power tool 10 includes a housing 20 with a handle region 40 . The operator holds electric power tool 10 at handle region 40 and can guide electric power tool 10 . Furthermore, the electric power tool 10 also includes a tool region 50 for a linearly and / or oscillatingly drivable tool 60, such as a tool ( figure 1 ) or drill bit ( figure 2 ), or another tool corresponding to another device type. The housing-side operating element 30 serves to activate the tool 60 and / or the electric power tool 10 on the user side.

[0030] In the housing 20 is arranged a drive unit 80 which,...

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PUM

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Abstract

The invention relates to a hand-held power tool (10) comprising a housing (20) having a handle portion (40), a tool portion (50) for a tool (60) that can be driven to move linearly and / or oscillate, an operator part (30) on the housing side for the activation of the tool (60) and / or the power tool (10) on the user side, a drive unit (80) for producing a working movement of the tool (60), an electronic unit (200) for supplying the drive unit (80) at least with open-loop control and / or closed-loop control signals, and an operating voltage unit (90) for making an electrical DC voltage available, the drive unit (80) comprising at least one excitation actuator (100) having a volume of an excitation-active material, which actuator is supplied with power by the operating voltage unit (90) when operated and which is controlled in an open or closed loop control by the electronic unit (200). A protective sensor unit (130) comprising a proximity or contact sensor (140) for detecting the contact of a body part of the user (180) with the tool area (50) is coupled to the drive unit (80) such that the drive unit (80) is switched off in the event of an unintentional proximity or contact.

Description

technical field [0001] The invention relates to a hand-held electric power tool comprising: a housing with a handle area; a tool area for a linearly and / or oscillatingly drivable tool; A housing-side operating part of a machine tool; a drive unit for generating a working movement of the tool; an electronic unit for applying at least control and / or regulation signals to the drive unit; an operating voltage unit for supplying a direct voltage, wherein The drive unit comprises at least one excitation actuator with a volume that excites the active material, which is supplied during operation by the operating voltage unit and is controlled or regulated by the electronics unit. Background technique [0002] A hand-held electric power tool is characterized in that it is portable and is held and guided by the operator's hand during operation. Hand-held power tools can be operated cable-free from a battery pack or on alternating current. It usually consists, in particular, of only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25F5/00F16P3/12F16P3/14
CPCH02H1/0007F16P3/12B25F5/00B23Q11/0078
Inventor J.罗泽
Owner ROBERT BOSCH GMBH