Tool Receptacle Locking Mechanism to Prevent Accidental Ejection
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Solution Overview
Problem
Existing carrying devices for tools like knives are prone to accidental ejection, posing risks of injury or loss, especially when not aligned vertically or during sudden movements, particularly in work environments like scaffolding.
Innovation Solution
A carrying device with a blocking mechanism that can be switched between a blocking position to secure the tool and a release position for easy removal, featuring a button actuation and a blocking device that prevents unintended ejection, and a control device that interacts with the tool's outer surface to manage the blocking position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tool is loosely received in the carrying device for easy access, then the ease of operation is improved, but the reliability deteriorates due to risk of accidental ejection
Solution Approach 1:
The blocking device is designed to be movable between a blocking position (protruding to prevent removal) and a release position (retracted to allow removal). This dynamic positioning allows the system to switch between secure retention and easy access states, resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The blocking device is actuated by a button that can be operated by the user to automatically engage or disengage the blocking mechanism. When the tool is inserted, the blocking device can automatically move into the blocking position without requiring separate manual intervention, providing self-service functionality that maintains security while enabling easy access when needed.
2Reliability
If the blocking device is added to prevent accidental ejection, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The blocking device is integrated into the receiving device structure, with the blocking element and actuation mechanism combined into a compact assembly. The button actuation system is merged with the existing receiving space and holding device, allowing the blocking function to be added without significantly increasing overall device complexity.
Solution Approach 2:
The button serves as an intermediary element that simplifies the user interface for the blocking mechanism. Instead of requiring direct manipulation of complex locking components, the button provides a simple actuation point that translates user pressure into the blocking device's movement between positions, reducing the perceived complexity for the user.
3Ease of operation
If the blocking device is made easily actuatable for quick access, then the ease of operation is improved, but the reliability deteriorates due to risk of unintentional actuation
Solution Approach 1:
The button is designed with specific local characteristics including a head portion with a defined actuation surface and a pressing direction. The blocking device requires actuation in a specific direction (first pressing direction) to move from blocking to release position, while actuation in another direction (second pressing direction) moves it from release to blocking position. This directional specificity ensures that accidental actuation is prevented while maintaining easy intentional access.
Solution Approach 2:
The blocking device is designed such that the default state (when no force is applied) is the blocking position, providing inherent security. To access the tool, the user must actively actuate the button to move to the release position. This inverted logic—where security is the default and access requires active intervention—prevents accidental ejection while maintaining simple operation for intentional access.
Data Source
AI summary
A carrying device for a tool, including a receiving device with a receiving space for receiving the tool, and a holding device for mounting and fastening the receiving device to a base part. The receiving device is assigned a blocking device that can be moved between a blocking position and a release position by an actuation, with which the tool can be releasably locked in the carrying device.