Shower Slide Rail Holding Mechanism for One-Handed Adjustment
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Solution Overview
Problem
Existing shower slide rail systems require users to adjust the shower head height with both hands, one for the clamp mechanism and the other to move the chassis, making it difficult for individuals with limited dexterity.
Innovation Solution
A slide rail mechanism with a chassis that is slideable along a rail, featuring a self-actuating holding mechanism where the chassis can be secured at a position by movement, utilizing a brake saddle and brake shoe with a cam system to maintain constant friction, allowing the user to adjust the shower head height with one hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamp mechanism with rotatable handle is used to secure the chassis, then the chassis can be firmly held at a position, but the user must use both hands to adjust the shower head height
Solution Approach 1:
The holding mechanism automatically engages and disengages based on the movement state of the chassis. When the chassis moves along the rail, the holding means disengages automatically; when the chassis stops, the holding means engages automatically to secure the position. This self-actuating mechanism eliminates the need for manual operation of a clamp handle, allowing single-handed adjustment while maintaining firm holding.
2Reliability
If a traditional clamp mechanism is used, then secure positioning is achieved, but the adjustment process becomes complex requiring coordination of both hands
Solution Approach 1:
The holding mechanism automatically detects the movement state of the chassis and adjusts its engagement state accordingly. During movement, the holding means disengages to allow free sliding; upon stopping, it automatically engages to lock the position. This eliminates complex manual clamp operations while ensuring accurate positioning.
Solution Approach 2:
The holding mechanism transitions between engaged and disengaged states dynamically based on the chassis movement. The mechanism is designed to be disengaged during motion and engaged at rest, adapting its state to the operational requirements at different moments.
3Reliability
If friction between brake shoe and rail is increased to improve holding, then consistent force is maintained, but varying friction levels along the rail create resistance to movement
Solution Approach 1:
The brake shoe friction force dynamically adjusts based on the movement state. During movement, the brake shoe is positioned to minimize friction resistance. When the chassis stops, the brake shoe automatically increases friction engagement to provide consistent holding force. This dynamic adjustment allows smooth movement while maintaining reliable positioning.
Solution Approach 2:
The holding mechanism is prepared in advance to engage automatically when the chassis stops moving. The cam mechanism is positioned such that upon cessation of movement, the holding means is already in position to engage and secure the chassis without requiring additional force or adjustment.
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 height adjustment of the shower head with reduced dexterity requirements, ensuring secure positioning and consistent force application, accommodating varying friction levels along the rail.
Implementation Method 1
a cam mechanism in the brake shoe converts linear motion of the chassis into rotational motion of the brake shoe
Implementation Method 2
a brake shoe and a brake saddle cooperate to grip the slide rail, to hold the slider assembly
Data Source
Figure 1~2
Figure 3A~3B
Figure 4~5B
AI summary
A slide rail mechanism (5) has a chassis (6) for holding a shower head, wherein the chassis (6) is slideable along a slide rail (3). The mechanism (5) includes a holding means (7) for holding the chassis (6) at a position along the slide rail (3), wherein the holding means (7) is actuated by movement of the chassis(6). The holding means (7) may be arranged to regulate friction between the holding means (7) and the slide rail (3) so as to maintain an at least substantially constant level of force requirement for movement in a given direction.