Tool Attachment Angle Adjustment Mechanism
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Solution Overview
Problem
Existing tool attachments for handheld power tools are cumbersome and complicated to handle, making it difficult for users to change the predefined angle position quickly and conveniently.
Innovation Solution
A tool attachment with a locking unit and independent first and second angle position setting units, allowing for easy adjustment of the angle position without affecting the fastening interface, featuring a tubular centering sleeve and angle setting toothing for secure and intuitive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the angle position setting unit is integrated into the fastening interface, then the structure is more compact, but the handling becomes cumbersome and complicated
Solution Approach 1:
The patent divides the angle position setting function into two independent units: a first angle position setting unit integrated with the fastening interface, and a second angle position setting unit that can be operated independently. This segmentation allows the angle adjustment function to be separated from the fastening operation, enabling users to adjust the angle position without needing to unlock or manipulate the fastening interface, thus improving handling convenience while maintaining structural compactness.
2Adaptability or versatility
If the angle position is adjusted by operating the fastening interface, then the angle can be changed, but the operation becomes complicated and time-consuming
Solution Approach 1:
The second angle position setting unit allows the angle position to be adjusted in advance or independently of the fastening operation. Users can set the desired angle position before fastening the tool attachment, or adjust it quickly during operation without going through the complex fastening interface operation sequence, thereby reducing the time required for angle adjustments.
Solution Approach 2:
The patent extracts the angle position setting function from the fastening interface operation sequence by providing a dedicated second angle position setting unit. This allows angle adjustment to be performed as a separate, simplified operation independent of the fastening interface, eliminating the time-consuming steps previously required to change angle positions.
3Reliability
If the fastening interface is designed for secure locking, then the tool attachment is firmly fixed, but the angle position change becomes more difficult
Solution Approach 1:
The patent segments the control functions by providing a second angle position setting unit that operates independently of the locking mechanism. This allows the fastening interface to maintain its secure locking function while the angle position can be adjusted through the separate second setting unit, eliminating the conflict between secure locking and easy angle adjustment.
Data Source
AI summary
A tool attachment includes: an attachment housing; a fastening interface situated on the attachment housing for detachable fastening on a handheld power tool, the fastening interface having a locking unit which, (i) in a locked state, locks the tool attachment for operation on the handheld power tool, and, (ii) in the unlocked state, enables removal of the tool attachment from the handheld power tool; and a first angle position setting unit for setting a predefined angle position of the tool attachment on the handheld power tool, the first angle position setting unit being operable in the locked state and in the unlocked state of the locking unit to enable a change of the predefined angle position.