Rotating Tool Magazine for Hand-Held Power Tools
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Solution Overview
Problem
Conventional hand-held power tools are limited in accommodating longer screw bits, restricting access to difficult-to-reach work areas and compromising user comfort due to their design and functionality.
Innovation Solution
A hand-held power tool with a rotatable insert tool magazine, a feed element, and a support element that allows for the accommodation of longer screw bits, enabling better access to hard-to-reach areas through a compact and ergonomic design, featuring a drive motor, gear unit, and a tool holder system that supports reversible operation and adjustable rotational speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the power tool is designed with a compact structure, then the tool size is reduced and user comfort is improved, but the ability to accommodate longer screw bits is limited
Solution Approach 1:
The insert tool magazine is rotatably arranged within the housing, allowing the magazine to nest into the housing structure. This nested arrangement enables the magazine to rotate and present different insert tools while maintaining a compact overall tool size, resolving the contradiction between compact tool design and the ability to accommodate various length screw bits
Solution Approach 2:
The insert tools are arranged radially in the rotatable magazine rather than linearly along the tool axis. This radial arrangement in a different dimensional orientation allows longer screw bits to be accommodated within the same compact housing volume, as the tools extend radially outward from the rotation center rather than axially from the tool tip
2Ease of operation
If longer screw bits are accommodated in the tool magazine, then access to hard-to-reach work areas is improved, but the tool structure becomes more complex
Solution Approach 1:
The rotatable insert tool magazine serves multiple functions: it stores multiple insert tools of different lengths, allows rapid tool selection through rotation, and maintains a compact structure. This multi-functional design enables access to various work areas without requiring separate tools, reducing overall system complexity despite accommodating longer screw bits
Solution Approach 2:
The insert tool magazine is designed to be rotatable rather than fixed, allowing dynamic selection of different insert tools. This dynamic feature enables the tool to adapt to different work requirements (including hard-to-reach areas) without requiring multiple separate tools or complex adjustment mechanisms, thereby managing structural complexity while improving operational versatility
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
A hand-held power tool (100), in particular a screwdriver, is described, comprising a housing (110), a tool magazine (200) having a plurality of tool chambers (110) for receiving one tool (140) each and rotatably arranged in the housing (110), a tool holder (150) for a rotatable drive of at least one of the tools (140), wherein the tool holder (150) is rotatably arranged in a tool holder opening (300) of the housing (110), a feed element (500) configured to move one of the tools (140) from a parked position in one of the tool chambers (210) into a working position in the tool holder (150), an actuating element (520) configured to actuate the feed element (500), and a support element (540) configured to hold the feed element (500) at least in the working position in the to support tool holder (150),It is disclosed that the support element (540) is arranged at least partially between the tool magazine (200) and the actuating element (520).