Sliding Security Door System with Separate Motive and Locking Assemblies
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Solution Overview
Problem
Existing high-security sliding door systems require unacceptably large dimensions and reconfiguration for different door widths due to the combination of door movement and unlocking functions, making them unsuitable for narrow spaces and limited locations.
Innovation Solution
A sliding security door system with a motive assembly in the upper track, a locking assembly, and a control assembly that allows separate activation of the motive and locking effectors, enabling remote operation and compact design with minimal overrun, suitable for narrow spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single operator is used for both door movement and unlocking functions, then the door system can be operated remotely, but the dimensions and structural complexity become unacceptably high
Solution Approach 1:
The patent divides the operator into two separate assemblies: a door movement operator and a door locking operator. Each assembly performs its specific function independently, allowing the door to be opened remotely while maintaining compact dimensions. The locking operator has a reduced height of no more than eight inches and an operating overrun of no more than 1 3/16 inches, fitting within narrow width cell constraints.
Solution Approach 2:
The locking function is extracted from the door movement operator and placed into a separate locking operator assembly. This extraction allows each assembly to be optimized for its specific function, with the locking operator being compact and the movement operator focused solely on door translation, thereby reducing overall system dimensions.
2Adaptability or versatility
If the operator structure is reconfigured for every differing door width, then the door system can accommodate various widths, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent employs universal tracks that can accommodate different door widths without requiring reconfiguration of the operator structures. The tracks are designed with flexibility to handle varying door dimensions, allowing the same operator assemblies to serve multiple door width applications. This universality eliminates the need for custom reconfiguration for each door width, simplifying manufacturing and reducing costs.
3Volume of moving object
If the operator height and overrun are reduced to fit narrow spaces, then the door system can be installed in limited space locations, but the structural robustness may be compromised
Solution Approach 1:
The patent applies local quality by concentrating the locking mechanism within a compact vertical space (no more than eight inches high) while maintaining structural robustness through optimized locking bar and effector designs. The locking operator is positioned to engage with the door at critical points, ensuring secure locking within the reduced space envelope. The motive assembly also maintains sufficient force generation within the compact configuration to move the door reliably.
Data Source
AI summary
The present sliding security door system includes a sliding security door extending between an upper track and a lower track. Separate motive and locking assemblies drive and secure the door, respectively. A control assembly in the system is capable of separately activating motive and locking effectors to allow for separate movement and locking/unlocking of the door. Because of this, the system is compact and capable of deployment in otherwise too-small spaces.