Sliding Window Security Member for Ventilated Safe Openings

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Solution Overview

Problem

Existing window assemblies with sliding panes pose safety and security concerns due to large openings that can be accessed by intruders and pose risks of falls or climbs, with existing solutions like wire mesh guards being inadequate.

Innovation Solution

A window assembly with a security member that includes a ventilating part with a perforated or apertured sheet and a non-ventilating part, secured by fastening elements and concealing clips, allowing for controlled ventilation and enhanced security through a remote control mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a sliding pane is used to allow ventilation, then air flow into the building is improved, but security and safety are worsened due to large openings

Engineering Contradiction:
Improveventilation efficiencyVSAvoidsecurity risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The window assembly is divided into multiple segments: a fixed pane and a sliding pane that can move independently. The sliding pane can be positioned to allow ventilation while remaining within the frame structure, preventing complete removal and maintaining security barriers.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sliding pane is nested within the window frame structure, allowing it to move between positions while remaining contained. This nesting ensures the pane cannot be completely removed, maintaining a security barrier even when ventilation is active.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Productivity

If a sliding pane is used to allow ventilation, then air flow into the building is improved, but safety is worsened due to fall risks

Engineering Contradiction:
Improveventilation efficiencyVSAvoidfall risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The window assembly separates the sliding pane from complete removal, dividing the opening into controlled segments. The sliding pane can be moved to ventilation positions while remaining within the frame, creating controlled openings that prevent falls.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of allowing the sliding pane to be completely removed from the frame (traditional approach), the design inverts the approach by keeping the pane nested within the frame structure, allowing movement but preventing complete removal, thus inverting the safety risk.

Inventive Principle:
Principle #13The other way round (Inversion)

3Object-affected harmful factors

If wire mesh guards are used to improve security, then unauthorized access is prevented, but ventilation efficiency is worsened

Engineering Contradiction:
Improvesecurity protectionVSAvoidventilation efficiency
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The design extracts the security function from separate wire mesh guards and integrates it into the sliding pane mechanism itself. The sliding pane becomes both the ventilation control and security barrier, eliminating the need for additional mesh guards that would block airflow.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The sliding pane serves multiple functions: it controls ventilation airflow, provides security barrier protection, and enables safety by preventing falls. This multi-functionality replaces the need for separate wire mesh guards while maintaining ventilation efficiency.

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

4Object-affected harmful factors

If fastening elements are used to secure the ventilating part, then security is improved, but ease of operation is worsened

Engineering Contradiction:
Improvesecurity protectionVSAvoidventilation control
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The fastening elements are designed to be dynamic rather than static - they can be easily engaged and disengaged to allow the sliding pane to move between closed and ventilated positions. This dynamic design maintains security when closed while enabling easy operation for ventilation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS8661734B2Window assembly with a sliding member and a security member having a ventilation portion
Publication Date: 2014.03.04 BRITPLAS COMML WINDOWS
  • US8661734B2 patent drawing
  • US8661734B2 patent drawing
  • US8661734B2 patent drawing

AI summary

A window assembly (30) comprising a frame (36) in which are received sliding and security members. The security member has ventilating and non-ventilating parts (40, 32), with the sliding member (34) being slidably moveable over the security member between a first position in which air may pass through the ventilating part (40) so as to ventilate the room in which the window assembly (30) is located, and a second position in which no such ventilation can occur. The ventilating part 40 may comprise a grille, perforated sheet, lattice arrangement or the like.