Double Breakout Sliding Door Pivot Mechanism
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Solution Overview
Problem
Automatic sliding door systems typically break open outward, which can be damaged by large or heavily loaded equipment and require complex resetting, and lack the ability to break inward for fire safety and operational efficiency.
Innovation Solution
A double breakout sliding door system that allows both outward and inward opening, featuring a motor-driven mechanism with pivot rods and interlocking latches to maintain door alignment and support, enabling level operation and easy resetting by pivoting the doors about pivot pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door breaks open outward only, then fire safety egress is ensured, but the door is vulnerable to damage from large or heavily loaded equipment and requires complex resetting
Solution Approach 1:
The patent applies inversion by enabling the door to break open in both outward and inward directions, reversing the conventional single-direction limitation. This allows the door to swing inward to avoid damage from equipment while maintaining outward breaking capability for fire safety egress, thus resolving the contradiction between safety and damage vulnerability
Solution Approach 2:
The patent implements dynamics through the rod and pivot pin mechanism that allows the door to dynamically adapt its breaking direction based on the situation. The door can pivot about the rod to break outward for safety or inward to avoid equipment damage, providing dynamic responsiveness rather than a fixed single-direction design
2Reliability
If the door breaks open outward only, then fire code compliance is achieved, but resetting the door requires lifting heavy doors which is time-consuming and complex
Solution Approach 1:
The patent applies inversion by allowing the door to break inward as an alternative to outward breaking. When equipment damage is a concern, the door can swing inward and reset without requiring lifting, thus simplifying the resetting operation while maintaining outward breaking capability for fire code compliance
Solution Approach 2:
The patent extracts the lifting requirement from the resetting process by enabling inward breaking. When the door breaks inward, the nose remains elevated and the door can be reset by simply pushing it back into place, eliminating the need to lift heavy doors and significantly simplifying the resetting operation
3Device complexity
If the door is designed for single-direction breaking, then the structure is simpler, but the system lacks versatility for different operational scenarios
Solution Approach 1:
The patent applies universality by designing the door system to perform multiple functions: it can break outward for fire safety egress, break inward to avoid equipment damage, and maintain level operation for normal use. The rod and pivot pin mechanism enables this multi-functionality without significantly increasing structural complexity
Solution Approach 2:
The patent implements dynamics through the rod and pivot pin mechanism that allows the door to dynamically adapt its breaking direction based on the situation. The door can pivot about the rod to break outward for safety or inward to avoid equipment damage, providing dynamic responsiveness rather than a fixed single-direction design
Data Source
AI summary
The present invention relates to a double breakout sliding door system for use in retail and other buildings. The system includes left and right doors that are configured to slide open and closed and also breakout in two directions (outward and inward) when a force is exerted on the doors in order to, for example, allow customers and employees to exit a building in the event of a fire and to prevent damage to the doors in the event that a user pushes on them when they are closed. The system also includes a leveling system configured to keep the doors level when they breakout and a ball detent mechanism to alert the user to the proper position of the doors.