Automatically Locking Shower Arm Joint with Clutch Mechanism
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Solution Overview
Problem
Conventional showerhead connections to water supply pipes and shower arms are stiff, making it difficult for users to pivot and reposition showerheads, especially in a wet environment, as they require manual activation of separate mechanisms like wingnuts or levers.
Innovation Solution
An automatically locking joint system for shower arms that includes a clutch slider and cap mechanism, allowing rotation when a predetermined force is applied and locking back into place, eliminating the need for manual release mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual locking mechanisms (wingnuts, levers) are used to secure showerheads, then connection stability is improved, but ease of operation deteriorates due to difficulty of manual activation in wet environments
Solution Approach 1:
The clutch mechanism automatically locks and unlocks without requiring manual activation. When rotational force is applied, the clutch slider disengages from the clutch cap, allowing free rotation. When rotational force is released, the spring automatically re-engages the clutch slider with the clutch cap, securing the position. This self-service mechanism eliminates the need for separate manual locking/unlocking actions.
Solution Approach 2:
The connection mechanism transitions between two dynamic states: locked and unlocked. The clutch assembly dynamically responds to applied force, automatically transitioning from locked to unlocked state when force threshold is exceeded, and back to locked state when force is released. This dynamic behavior provides both stability when stationary and ease of movement when force is applied.
2Strength
If stiff connections are used to secure showerheads, then connection strength is improved, but ease of operation deteriorates as pivoting becomes difficult
Solution Approach 1:
The clutch mechanism creates a dynamic connection that is strong when locked but allows movement when force is applied. The clutch slider and cap engage to provide strong mechanical connection, but when sufficient rotational force is applied, the mechanism automatically disengages to allow pivoting, then re-engages to secure the new position.
Solution Approach 2:
The connection automatically transitions between locked and unlocked states based on applied force, without requiring separate manual operations. The spring-loaded clutch mechanism self-adjusts to provide either strong connection or free movement based on operational needs.
3Ease of operation
If separate manual activation mechanisms are added to enable repositioning, then ease of operation improves, but device complexity increases
Solution Approach 1:
The locking and unlocking functions are merged into a single clutch mechanism that responds automatically to applied force. The clutch slider, clutch cap, and spring work together as an integrated unit that combines both security and ease of repositioning in one mechanism, eliminating the need for separate manual locking and unlocking components.
Solution Approach 2:
The mechanism performs both locking and unlocking functions automatically based on applied force, eliminating the need for separate manual activation mechanisms. The spring-loaded clutch assembly self-regulates to provide appropriate function based on operational conditions.
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 easy one-handed repositioning of showerheads without manual activation, providing a secure locking mechanism and controlled movement, enhancing user convenience and safety in wet conditions.
Implementation Method 1
rotation of the second body relative to the first body causes the clutch slider to selectively engage and disengage from the clutch cap
Data Source
AI summary
A coupling for fluid pathways, such as for use in connecting showerheads to a fluid source. The coupling includes a fixed member, a movable member rotatably connected to the fixed member, and a locking assembly connected to the fixed member and received within the movable member. In response to a rotational force exceeding a predetermined threshold the locking assembly permits rotation of the movable member relative to the fixed member and when the rotational force drops below the predetermined threshold, the locking assembly prevents rotation of the movable member to the fixed member.