Friction Locking Mechanism for Flexible Position Release
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Solution Overview
Problem
Existing locking mechanisms for relative movement between different members, such as in surgical instruments, often require complex structures with separate locking parts and coupling, complicating the design and limiting flexibility in locking positions.
Innovation Solution
A locking apparatus with a locking unit that generates frictional force between body parts to prevent relative movement and an unlocking unit that releases the lock via an elastic member, allowing locking at any position and reducing free play.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connection members and coupling structures are used to fix the location of members, then relative movement between members is prevented, but the structure becomes complicated
Solution Approach 1:
The locking unit integrates both locking and coupling functions into a single component that simultaneously contacts the first and second body parts. This merged structure eliminates the need for separate connection members and coupling structures, reducing structural complexity while maintaining reliable locking performance through frictional engagement.
Solution Approach 2:
The locking unit utilizes frictional force generated by its own contact with the first and second body parts to prevent relative movement. The elastic member provides self-adjusting pressure to maintain locking force, and the unlocking unit enables self-release when activated, reducing the need for additional locking mechanisms.
2Reliability
If separate locking parts are installed in each member, then relative movement is prevented, but the structure becomes more complex
Solution Approach 1:
Instead of installing separate locking parts in each member, the invention uses a single locking unit that bridges both body parts. This unified approach reduces the number of parts while achieving stable locking through the frictional contact between the locking unit and both body parts.
3Device complexity
If a locking mechanism is designed to lock at a fixed position, then the structure is simple, but flexibility in locking position is limited
Solution Approach 1:
The locking unit is designed to move along the second body part and can engage at any position within a certain section. The elastic member dynamically adjusts to maintain contact pressure regardless of the locking position, providing flexibility while keeping the overall structure simple through the use of a single movable locking unit.
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
The apparatus enhances locking performance by preventing relative movement through friction and allows selective release, improving operational flexibility and reducing structural complexity.
Implementation Method 1
a locking unit capable of moving within an interval between the first body part and the second body part and simultaneously contacting the first body part and the second body part
Implementation Method 2
an unlocking unit disposed on a movement path of the locking unit and capable of pushing the locking unit in a direction away from the first body part or the second body part
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
The disclosure relates to a locking apparatus, and more particularly, to a locking apparatus with improved locking performance as a locking unit is stuck between different members capable of moving relative to each other and in which locking is released as an unlocking unit pushes the locking unit.