Interlock Security Device for Sliding Doors
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Solution Overview
Problem
Sliding articles such as doors and windows are vulnerable to unauthorized entry as they can be pried open using lateral force, necessitating a means to secure them effectively.
Innovation Solution
A mountable interlock security device comprising a first component attached to one sliding article and a second component with an extendable member attached to the other, which interlock when in the closed position to prevent lateral movement and tampering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sliding articles are designed to be slidable for easy operation, then ease of operation is improved, but security against lateral force application deteriorates
Solution Approach 1:
The security device is divided into separate components: a first component mounted on one sliding article and a second component mounted on the other sliding article. These components remain separate during normal sliding operation but engage to form an interlocking structure when the articles are in the closed position, providing security without interfering with operational ease.
Solution Approach 2:
The security device acts as an intermediary element between the two sliding articles. It includes an extendable member with an interlocking means that can engage with a corresponding feature on the other article, creating a mechanical connection that resists lateral forces while allowing the articles to slide relative to each other during normal operation.
2Reliability
If an interlocking mechanism is added to prevent prying, then security is improved, but device complexity increases
Solution Approach 1:
The security device incorporates an extendable member that can change its configuration or position. This dynamic element allows the device to adapt between a compact state during installation/operation and an extended state when providing the interlocking security function, reducing the overall complexity of the structure.
Solution Approach 2:
The interlocking means is designed to nest within or engage with existing structures of the sliding articles. The security device components are mounted to the articles and the interlocking features are positioned to engage within the gap between articles, utilizing the existing spatial arrangement rather than requiring additional complex external structures.
3Adaptability or versatility
If the security device accommodates various spacing between sliding articles, then adaptability is improved, but device complexity increases
Solution Approach 1:
The extendable member provides dynamic adjustability to accommodate various spacing between sliding articles. It can be extended or retracted to match the specific gap distance, allowing the security device to adapt to different installations without requiring multiple fixed-length components or complex adjustment mechanisms.
Solution Approach 2:
The security device allows for parameter changes in the spacing between components by adjusting the extendable member. This enables the same device design to work with different gap distances between sliding articles, providing versatility while maintaining a relatively simple structure through a single adjustable element rather than multiple fixed configurations.
Data Source
AI summary
A mountable interlock security device for securing first and second sliding articles slidable relative to each other from an open position to a closed position such that in the closed position the sliding articles have overlapping interior edges. The security device comprises a first component mountable to the first sliding article and a second component mountable to the interior edge of the second sliding article. The two components of the security device are mounted to the overlapping end regions of respective sliding articles such that when the sliding articles are in the closed position, the two components of the security device cooperate to limit lateral movement of the sliding articles. In another aspect, a method of retrofitting interior and exterior sliding articles, such as doors or windows, of a building with a security device is provided.