Adjustable Door Peep Viewer for Wheelchair Accessibility
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Solution Overview
Problem
Conventional door peep-holes are not conducive for individuals of short stature or those in wheelchairs, limiting their ability to identify visitors safely, as they often need to open the door, potentially allowing unwanted entry.
Innovation Solution
A door peep viewer system comprising an upper and lower cubic portion with angled mirrors and a two-way scope, allowing users to view visitors through a door peep-hole, with a mounting assembly for secure attachment and adjustable telescopic extension for improved visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional peep-hole is used, then the structure is simple and cost-effective, but it is not accessible to individuals of short stature or those in wheelchairs
Solution Approach 1:
The patent extends the peep-hole viewing path vertically by adding a telescopic extension member with mirrors that redirects the line of sight downward to a lower viewing aperture. This dimensional change in the viewing path allows wheelchair users and individuals of short stature to access the peep-hole function without requiring them to reach high positions.
Solution Approach 2:
The device is divided into multiple functional segments: the door assembly with peep-hole, the telescopic extension member with mirrors, and the viewing aperture assembly. This segmentation allows each component to perform its specific function independently while working together to solve the accessibility problem.
2Ease of operation
If the peep-hole height is lowered for accessibility, then short stature individuals can use it, but it may compromise the viewing angle and security effectiveness
Solution Approach 1:
Instead of lowering the peep-hole aperture, the patent uses mirrors to create an optical path that extends vertically downward. This allows the original peep-hole position to be maintained for optimal viewing angle while providing access to users at lower positions through the extended viewing path.
Solution Approach 2:
The mirrors act as intermediaries that transfer the image from the peep-hole to the lower viewing aperture. This intermediary mechanism preserves the viewing quality at the original peep-hole position while making the function accessible to users at lower positions.
3Adaptability or versatility
If a telescopic extension with mirrors is added for accessibility, then wheelchair users can access the peep-hole, but the device complexity increases
Solution Approach 1:
The telescopic extension member is designed to be movable and adjustable, allowing it to be extended or retracted as needed. This dynamic design provides versatility for different user needs while maintaining a compact form when not in use, balancing accessibility with space efficiency.
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 wheelchair-bound and small-stature individuals to safely identify visitors before allowing entry, enhancing home security without requiring door opening, while being cost-effective and reliable.
Implementation Method 1
a top internal two-way forty-five degree angled mirror... a bottom internal forty-five degree angled mirror
Implementation Method 2
The two-way scope comprises a wide angle lens to increase the relative viewing angle
Data Source
AI summary
A door peep viewer system allows small stature individuals, children, and those confined to a wheelchair or motorized scooter, the ability to use the peep-hole located within a home's front or rear door. This increases home safety by permitting the identification of someone requesting entry to the home. Once the door peep viewer system is mounted to the door, the lower portion adjustably extends to suit the needs of the person using the device. Persons of average height are still capable of using the peep-hole because the top portion is designed with a two-way see through scope. The door peep viewer system can be used in residential homes, or commercially in hotel rooms.