Shower Door Gravity Hinge for Horizontal-Mount Self-Closing
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Solution Overview
Problem
Traditional shower door hinges are bulky and unsightly, making them incompatible with modern glass wall shower enclosures, and they require a strike plate and latch, which disrupts the unbroken glass appearance.
Innovation Solution
A gravity hinge system that attaches only to horizontal surfaces, featuring a self-closing mechanism with a lower hinge that mounts to the sill and an upper hinge that can be hidden within the door frame, allowing for an unbroken glass wall design and eliminating the need for a strike plate and latch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional piano style hinges are used to support the shower door, then the door can be adequately supported, but the hinges are bulky and exposed, disrupting the decorative theme and unbroken glass appearance
Solution Approach 1:
The hinge mechanism is nested within the horizontal frame rails of the shower door assembly. The hinge components are concealed inside the rail structures, allowing the door to be supported while maintaining an unbroken glass appearance from the exterior view.
Solution Approach 2:
The hinge mechanism is extracted from the vertical surface of the glass door and relocated to the horizontal frame rails. This extraction allows the hinge to be hidden within the rail structure rather than being exposed on the glass surface, resolving the contradiction between support capability and aesthetic appearance.
2Reliability
If a strike plate and latch are installed to keep the door closed, then the door can be secured, but these components disrupt the unbroken glass wall appearance
Solution Approach 1:
The gravity hinge system provides self-closing functionality through its cam mechanism that automatically guides the door into the closed position and engages the latch without requiring separate actuators or visible controls on the glass surface. The system serves itself by using the door's own weight and the hinge's mechanical geometry to achieve secure closure.
3Ease of operation
If hinges are mounted to vertical surfaces of the glass door, then the door can be pivoted, but the mounting hardware is unsightly and unacceptable in modern glass wall enclosures
Solution Approach 1:
The hinge mounting location is shifted from the vertical dimension (glass door surface) to the horizontal dimension (frame rails). This dimensional change allows the pivoting function to be maintained while the mounting hardware is concealed within the horizontal rail structure, eliminating visual disruption to the glass wall appearance.
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 gravity hinge system provides a compact, aesthetically pleasing solution that ensures the shower door self-closes, preventing water from escaping and maintaining the sleek appearance of the glass wall enclosure.
Implementation Method 1
shower door hinge assembly where the hinges include a self-closing feature
Data Source
AI summary
A shower door and hinge assembly comprising a glass shower door, a sloping sill, a sill angle adapter, upper and lower horizontal door frame rails, and upper and lower shower door hinges where the lower hinge is a gravity style hinge featuring a self-closing action, is presented. The hinges of the present invention shower door and hinge assembly attach only to horizontal edge surfaces of the glass door. The hinges do not attach to any vertical surface of the door.