Interchangeable Tool Head Mechanism for Tool-Free Secure Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hand tools with interchangeable heads require additional tools for head replacement, leading to complexity, inefficiency, and insecure locking mechanisms, limiting versatility.
Innovation Solution
A tool with an interchangeable head mechanism featuring a lever and tool heads with elastically deformable hook arms that secure and detach easily, utilizing flanges to lock into the lever's side holes for quick and secure attachment and detachment without external tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external tools and complicated fastening mechanisms are used for head replacement, then the locking mechanism becomes more secure, but the device complexity increases and head replacement becomes less efficient
Solution Approach 1:
The tool head features self-locking hook arms that automatically engage with the lever's side holes when inserted, eliminating the need for external fastening tools. The hook arms deform elastically to secure the connection, providing reliable locking through the tool's own structure rather than requiring separate fastening mechanisms.
Solution Approach 2:
The fastening function is merged into the tool head structure itself through the integrally formed hook arms. Instead of being separate components, the locking mechanism is combined with the tool head body, reducing overall device complexity while maintaining secure attachment.
2Reliability
If external tools are required for head replacement, then the locking mechanism becomes more secure, but the head replacement procedure becomes more cumbersome and time-consuming
Solution Approach 1:
The tool head features self-locking hook arms that automatically engage with the lever's side holes when inserted, eliminating the need for external fastening tools. The hook arms deform elastically to secure the connection, providing reliable locking through the tool's own structure rather than requiring separate fastening mechanisms.
Solution Approach 2:
The external fastening tools have been extracted/removed from the system entirely. The patent eliminates the need for separate wrenches, screwdrivers, or other external tools by integrating the fastening function directly into the tool head structure through the elastic hook arms.
3Device complexity
If a simple hook arm mechanism is used for head attachment, then the device complexity is reduced, but the locking stability may be compromised
Solution Approach 1:
The hook arms are designed with specific elastic properties and geometric parameters that enable them to deform under insertion force and then maintain a secure locked position. The elastic deformation parameter allows the simple hook structure to achieve reliable locking by changing its physical state during the attachment process.
Solution Approach 2:
The hook arms are made from elastic materials that combine flexibility for easy insertion with sufficient strength for secure locking. This material selection allows the simple structural form to achieve both ease of attachment and locking stability simultaneously.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick, secure, and versatile head replacement, enhancing convenience and efficiency by eliminating the need for additional tools and improving locking stability.
Implementation Method 1
The first hook arm is elastically deformable
Data Source
AI summary
A hand tool with an interchangeable tool head comprising a lever and one or more tool heads that are removably engageable with the lever. The lever includes a slot that is configured to receive the insertion end of a tool head. The tool heads comprise hook arms that are elastically deformable. The tool heads are equipped with flanges that abut circumferential edges of the slot. The lever and tool heads are further equipped with support rods that fit into a support slot.