Handshower Slide Cam Mechanism to Prevent Holder Freefall
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Solution Overview
Problem
Conventional showerhead holders often fail to securely lock the showerhead in place, leading to potential damage or injury if the holder is not fully engaged before release, especially with heavy handshower systems.
Innovation Solution
A handshower slide mechanism featuring a cam system within a bar, where a handle rotates to change the cam's orientation, securing the holder when locked and allowing movement when unlocked, with a spring biasing the mechanism to automatically lock upon release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional squeezing collar or rubber pad is used to grip the slidebar from the outside, then the holder can be adjusted to different positions, but the holder may freefall along the slidebar if the handle is released before full engagement, causing damage or injury
Solution Approach 1:
The cam mechanism inverts the conventional external gripping approach by using an internal cam that pushes outward against the slidebar from within the passageway. This internal pushing mechanism replaces the external squeezing action, fundamentally changing how the holder engages with the bar to achieve both adjustability and secure locking.
Solution Approach 2:
The spring-loaded cam mechanism performs preliminary locking action automatically as the holder approaches a position on the slidebar. The spring pre-loads the cam to engage with the bar surface before the user releases the handle, ensuring the holder is secured in advance of any potential freefall scenario.
2Device complexity
If the handle is released before the backing plate or squeezing collar is fully engaged with the slidebar, then the holder structure remains simple, but the heavy handshower and holder can freefall causing damage or injury
Solution Approach 1:
The spring-loaded cam performs preliminary locking engagement automatically as the holder approaches a position on the slidebar. The spring pre-loads the cam to engage with the bar surface before the user releases the handle, ensuring the holder is secured in advance of any potential freefall scenario.
Solution Approach 2:
The cam mechanism provides beforehand cushioning by maintaining constant spring-loaded engagement with the slidebar. This pre-engagement creates a safety buffer that prevents catastrophic freefall even if the handle is accidentally released, cushioning against the harmful effect of potential drops.
3Reliability
If a spring-loaded cam mechanism is used to provide automatic locking, then the holder is securely locked in place, but the mechanism becomes more complex compared to simple external gripping
Solution Approach 1:
The invention merges the adjusting function and locking function into a single integrated mechanism. The cam serves dual purposes: it allows position adjustment when the handle is manipulated and automatically locks when the handle is released, combining two functions that could have been separate into one unified system.
Solution Approach 2:
The spring-loaded cam mechanism is self-servicing in that it automatically performs the locking action without requiring additional user intervention. Once the handle is released, the spring automatically returns the cam to its engaged position, securing the holder without needing a separate locking step or complex control system.
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
Prevents the showerhead holder from freefalling by ensuring automatic locking when the handle is released, providing secure positioning and preventing accidents or damage.
Implementation Method 1
An orientation of the cam is controlled by a spring and is biased toward the first orientation
Implementation Method 2
an orientation of the cam is correlated to a position of the handle. The cam is configured to be movable from the first orientation to the second orientation by an external force on the handle that overcomes the force of the spring and frictionally engages the cam with the bar
Data Source
AI summary
A handshower slide includes a bar with a passageway, a slide mechanism positioned along a length of the bar, and a showerhead holder movable with the slide mechanism along the length of the bar. The slide mechanism includes a handle and a cam, and the cam is positioned within the passageway and is rotatable between a first orientation and a second orientation relative to the bar. The slide mechanism is not movable along the length of the bar while the cam is in the first orientation and is movable along the length of the bar while the cam is in the second orientation. An orientation of the cam is correlated to a position of the handle, and a spring is coupled to the handle and the cam, so that the spring biases the cam toward the first orientation and away from the second orientation.