Detachable door systems
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Solution Overview
Problem
Conventional pet door systems often require modifications to the door frame, which is not feasible for all types of doors, especially those with glass panes like French doors, and lack flexibility for exhaust ventilation.
Innovation Solution
A detachable pet door system that includes a main panel with a deadbolt coupling system, hinge locking mechanisms, and a toggle latch, allowing it to be securely attached to various door types without modification, and featuring an exhaust vent for flexible ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional pet door systems are installed, then pet access is enabled, but door frame modification is required which is not feasible for all door types
Solution Approach 1:
The pet door system is divided into separate modular components: a main panel with pet door opening, upper and lower panels, and detachable connection mechanisms. This segmentation allows the system to be adapted to different door types without requiring permanent modification to the door frame itself.
Solution Approach 2:
The patent introduces a door casing as an intermediary structure that interfaces between the existing door frame and the pet door system. The deadbolt coupling system connects the main panel to this intermediary casing, which then attaches to the door frame, eliminating the need to modify the original door frame directly.
2Adaptability or versatility
If detachable connection mechanisms are used, then installation flexibility is improved, but attachment security may be compromised
Solution Approach 1:
The connection mechanisms feature dynamic characteristics with hinge locking systems that can transition between locked and unlocked states. The locking pins engage with slots in the brackets to secure panels in closed positions, while allowing controlled movement for installation and removal, thus providing both flexibility and security.
Solution Approach 2:
The hinge locking systems are pre-configured with locking pins and brackets positioned to automatically engage when panels are closed. This preliminary positioning ensures that security features are activated as part of the normal closing operation, maintaining attachment security without requiring additional manual locking steps.
3Strength
If fixed door frames are used, then structural integrity is maintained, but exhaust ventilation capability is limited
Solution Approach 1:
The door opening is segmented into multiple independent panels (main panel, upper panel, lower panel) that can be independently configured. The main panel includes an opening for exhaust hose connection, while upper and lower panels can be positioned to maintain structural integrity of the door frame, allowing both ventilation and strength requirements to be met simultaneously.
Solution Approach 2:
The main panel serves multiple functions: it provides the pet door opening, incorporates exhaust ventilation capability through hose connection openings, and maintains structural support through the deadbolt coupling system. This multi-functionality allows a single component to address both ventilation needs and structural requirements.
Data Source
AI summary
Implementations of detachable door systems may include: a main panel, an upper panel, and a connection mechanism by which an upper side of the main panel hingedly couples to the upper panel. The connection mechanism may include a hinge locking system with a fixed open position and a closed position and with a fixed bracket secured to the main panel, the fixed bracket hingedly coupled to a non-fixed bracket that is secured to the upper panel. A locking pin may be configured to engage in a first pair of slots in the fixed bracket corresponding with the fixed open position and configured to engage in a second pair of slots in the fixed bracket corresponding with the closed position. A removable fastener may be included to prevent the locking pin from engaging in the second pair of slots corresponding with the closed position.