Sliding Security Door System With Segmented Motive And Locking Assemblies

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Solution Overview

Problem

Existing high-security sliding door systems require unacceptably large and broad dimensions due to the integration of both door movement and unlocking functions, making them unsuitable for narrow spaces like detention cell doors.

Innovation Solution

A sliding security door system with a motive assembly for door movement and a separate locking assembly, both operable by a control assembly that allows independent activation of the door's movement and locking mechanisms, thereby reducing the overall system dimensions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a single operator integrates both door movement and unlocking functions, then the system can be controlled with one operator, but the dimensions become unacceptably high and broad

Engineering Contradiction:
Improveoperator controlVSAvoidsystem dimensions
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

The patent divides the door operator system into two separate operators: one dedicated to door movement and another dedicated to door locking. This segmentation allows each operator to be optimized for its specific function, reducing the overall dimensions while maintaining operational capability. The control assembly coordinates both operators independently, solving the contradiction between integrated control and compact dimensions.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the door operator structure is reconfigured for every differing door width, then the operator can fit narrow width cells, but the manufacturing complexity increases

Engineering Contradiction:
Improvedoor width adaptationVSAvoidstructural reconfiguration
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent employs a universal operator structure with adjustable components that can accommodate different door widths without requiring complete reconfiguration. The operator includes adjustable elements such as repositionable locking mechanisms and adaptable mounting configurations, allowing the same basic design to serve multiple door width requirements. This reduces manufacturing complexity while maintaining adaptability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Length of stationary object

If the operator height is reduced to no more than eight inches, then the operator can fit in narrow width cells, but the operating overrun must also be limited to 1 3/16 inches

Engineering Contradiction:
Improveoperator heightVSAvoidoperating overrun
Core Design Contradiction:
Length of stationary objectVSLength of moving object

Solution Approach 1:

The patent incorporates dynamic adjustment mechanisms that allow the operator to adapt its dimensions based on the specific application requirements. The operator includes adjustable components that can modify its effective height and overrun within the constraints, enabling it to fit within the specified limits (8 inches height, 1 3/16 inches overrun) while maintaining functional performance. This dynamic capability resolves the contradiction between size constraints and operational requirements.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250027360A1Sliding security door system
Publication Date: 2025.01.23 SUMMIT SAFETY CLOSER INC
  • US20250027360A1 patent drawing
  • US20250027360A1 patent drawing
  • US20250027360A1 patent drawing

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.