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Wrench for rotary tool

A technology for rotating tools and cutting tools, applied in the field of screwing devices, can solve the problems of easy misplacement, uncomfortable gripping of collet tools, and small collet tools.

Active Publication Date: 2014-06-25
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Often collet tools are small and easily misplaced
Also, the size and shape of some collet tools makes it uncomfortable for some users to hold

Method used

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  • Wrench for rotary tool
  • Wrench for rotary tool
  • Wrench for rotary tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] To promote an understanding of the principles of the disclosure, reference will now be made to the embodiments illustrated in the drawings and described in the written description that follows. It should be understood that no limitation of the scope of the present disclosure is intended thereby. It is further to be understood that the present disclosure includes any alterations and modifications to the described embodiments, and includes other applications of the principles of the disclosure which would normally occur to one skilled in the art to which the disclosure pertains.

[0017] figure 1 A rotary tool 100 according to the present disclosure is shown including a housing 104 and a screwing device assembly 108 coupled to the housing. Housing 104 is configured to be gripped by a user's hand during operation of rotary tool 100 . Housing 104 may be formed from injection molded thermoplastic, or may be formed from other suitable and durable materials.

[0018] like ...

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PUM

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Abstract

A rotary tool (100) includes a housing (104), a tool holder (120), and a wrench assembly (108). The housing (104) includes an end portion (124) having external threads (128). The tool holder (120) extends from the end portion (124) and includes a fastening member (172) configured for movement between an undamped position and a clamped position in which the tool holder (120) can engage a tool. The wrench assembly (108) includes a body portion (220) and a wrench member (228). The body portion (220) includes (i) a plurality of internal threads (240) configured to meshingly engage the external threads (128) and (ii) an opening (236) through which a portion of the tool holder extends (120) when the internal threads are meshingly engaged to the external threads. The wrench member (228) includes a wrench surface (258) configured to engage the fastening member (172).

Description

technical field [0001] The present invention relates generally to rotary tools, and more particularly to a screwing device for use with a rotary tool. Background technique [0002] Rotary tools are favorite tools of professional craftsmen, handymen, homeowners, and hobbyists. A typical rotary tool is a hand-held power tool configured for use with various accessory bits / knives that can be used for cutting, engraving, grinding, polishing, and many other applications, These are collectively referred to as cutting operations. A specific illustration of a rotary tool is sold by the Robert Bosch Company Rotary cutter. [0003] Most rotary tools include a collet assembly connected to a motor-driven shaft. The collet assembly is configured to couple or disconnect the accessory bit to the motor drive shaft. A motor is operable to rotate the collet assembly and any attached cutter heads connected thereto. When the accessory bit becomes inoperative or when the user wishes to per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/20B23B45/00B25B33/00B25F5/02
CPCB23B31/201B23B2231/2081B23B2260/138B25B33/005B23B45/006B23B2260/078B25B13/48B23B31/20125Y10T279/3451Y10T279/3431Y10T279/17299B23B31/06
Inventor W·贝尔纳迪
Owner ROBERT BOSCH GMBH