Key-Locked Cap Handle Clutch for Secure Container Opening
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing caps for containers lack a secure and user-friendly mechanism to selectively lock and unlock the cap for co-rotation with the handle, which is essential for preventing unauthorized removal or accidental opening.
Innovation Solution
The cap incorporates a key lock assembly comprising a lift cam, a clutch plate, and a key lock cylinder, which allows the handle to be selectively coupled or decoupled from the cap body for co-rotation, providing a secure locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a key lock assembly is added to selectively lock the cap, then security against unauthorized removal is improved, but device complexity increases
Solution Approach 1:
The key lock cylinder is nested within the handle assembly, with the lift cam positioned between the handle and cap body. The clutch plate is integrated into the handle structure, creating a compact nested arrangement where multiple locking components occupy overlapping spatial volumes rather than requiring separate mounting spaces.
Solution Approach 2:
The locking mechanism merges the handle rotation function with the locking function by integrating the key lock cylinder directly into the handle. When the key lock cylinder rotates, it simultaneously controls both the locking state and the handle's rotational capability, combining multiple functions into a single integrated component rather than separate mechanisms.
2Reliability
If a key lock assembly is added to selectively lock the cap, then security against unauthorized removal is improved, but ease of operation deteriorates
Solution Approach 1:
The lift cam automatically performs the locking action when the key lock cylinder rotates to the locked position, and automatically unlocks when rotated back. The cam surfaces are designed to self-eng-age and self-disengage the clutch plate without requiring additional user actions, making the locking mechanism self-operating once the key cylinder is turned.
Solution Approach 2:
The lift cam acts as an intermediary mechanism between the key lock cylinder and the clutch plate. It translates the rotational motion of the key lock cylinder into axial displacement of the clutch plate, mediating the interaction between these components and enabling smooth, controlled engagement and disengagement without direct mechanical contact between the cylinder and clutch plate.
3Reliability
If the handle is decoupled from the body in locked position, then prevention of accidental opening is improved, but ease of operation deteriorates
Solution Approach 1:
The connection between the handle and cap body dynamically transitions between coupled and decoupled states based on the key lock cylinder position. In the unlocked state, the handle is coupled to the cap body for normal rotation and opening operations. In the locked state, the handle is decoupled to prevent rotation. This dynamic adaptability allows the system to optimize both accessibility and security at different operational states.
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 key lock assembly effectively secures the cap to the container by preventing the handle from being rotated relative to the cap body when in the locked position, thus preventing unauthorized removal or accidental opening.
Implementation Method 1
a lift cam supported within the body and having a first cam surface, a clutch plate supported within the handle, the clutch plate having a second cam surface, the second cam surface being engageable with the first cam surface
Data Source
AI summary
A cap includes a body, a handle couplable to the body, and a key lock assembly operable to selectively couple the handle to the body for co-rotation. The key lock assembly includes a lift cam supported within the body and having a first cam surface, a clutch plate supported within the handle and having a second cam surface engageable with the first cam surface, and a key lock cylinder coupled for co-rotation with the lift cam. The key lock cylinder is rotatably coupled to the handle and movable between an unlocked position where the handle is coupled to the body and a locked position where the handle is decoupled from the body. Rotation of the key lock cylinder towards the locked position rotates the lift cam so the first cam surface engages the second cam surface to axially displace the clutch plate to uncouple the handle to the body.