Trackless Sliding Door Breakaway Mechanism
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Solution Overview
Problem
Conventional trackless and tracked sliding doors for ICU suites lack a break-away feature that can be operated without special knowledge, posing safety issues in emergencies and complicating maintenance, and the floor track in tracked systems creates cleanliness and obstruction problems.
Innovation Solution
A trackless sliding door design that allows the sliding panel to break away from the outer frame at any position without requiring a floor track, using a carrier bar and lock members to facilitate easy operation and maintenance, with the sliding and fixed panels able to pivot outward from the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional trackless sliding doors are used, then the door provides unobstructed vision and privacy, but the door cannot break away at any position without special knowledge
Solution Approach 1:
The sliding panel is designed with automatic break-away capability that does not require manual intervention or special knowledge to operate. The panel automatically releases from the header member when subjected to sufficient force in the broken away direction, allowing any person to emergency open the door without training
Solution Approach 2:
The door system transitions from a static locked state to a dynamic broken away state through controlled deformation. The sliding panel can pivot outward from the header member at any position during its travel, providing dynamic emergency access capability
2Reliability
If conventional tracked sliding doors are used, then the door can break away in any position, but the floor track creates obstacles for equipment movement
Solution Approach 1:
The floor track is completely removed from the door system. Instead of using a floor-mounted track, the sliding panel engages with the header member through a carrier bar and lock members that are integrated into the door structure itself, eliminating the obstructive floor track while maintaining break-away capability
Solution Approach 2:
The break-away mechanism is moved from the floor level to the header member level. The sliding panel pivots outward from the header member rather than sliding along the floor, transferring the break-away function to a different spatial dimension that does not obstruct floor space
3Reliability
If a floor track is used, then the door can break away, but the track recess harbors dirt and pathogens
Solution Approach 1:
The floor track recess is completely eliminated by removing the floor track entirely. The break-away function is achieved through integration with the header member, which does not create hidden recesses that could harbor contaminants, thereby eliminating the contamination risk associated with floor track recesses
4Reliability
If conventional trackless sliding doors with flush bolts are used, then the door provides privacy, but the flush bolt requires maintenance and can break
Solution Approach 1:
The door system eliminates the flush bolt component entirely. Privacy is maintained through the sliding panel's engagement with the header member, and the break-away function is achieved through the carrier bar and lock members that integrate the locking and breaking functions into a single robust mechanism that requires no maintenance
Solution Approach 2:
The locking and break-away functions are merged into a single integrated mechanism using the carrier bar and lock members. This eliminates the separate flush bolt component, reducing the number of parts that can fail and simplifying the overall system to require minimal maintenance
Data Source
AI summary
A sliding door with a sliding panel and a fixed panel allows for the sliding panel to pivot with respect to the fixed panel regardless of the position of the sliding panel and allows both the sliding panel and fixed panel to pivot with respect to an outer frame in which the panels are mounted when the sliding panel is fully open or nearly fully open without requiring a floor track. The sliding panel may move linearly with respect to the fixed panel and outer frame along the length of a header, and a guide bracket cooperatively engaged with the sliding panel may be partially positioned in a guide track formed in the fixed panel bottom rail. A floor plate may be secured to the floor surface adjacent the bottom end of a first jamb to provide support/stability to the panels.