Movable Partition Vertical Alignment via Overhead Ramp

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Solution Overview

Problem

Movable partitions used as fire or security barriers often experience lateral displacement of their lower edges relative to the upper edges, leading to misalignment with mating receptacles, which can compromise the integrity of the barrier and is difficult to address without unsightly or hazardous floor tracks.

Innovation Solution

A vertical alignment system comprising a roller element and a structural frame member coupled to the movable partition, along with an overhead ramp oriented at an acute angle, ensures the leading end of the partition remains aligned with the strike plate, maintaining proper engagement and barrier integrity without floor tracks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If floor tracks are used to prevent lateral displacement of the movable partition, then alignment reliability is improved, but device complexity and aesthetics deteriorate due to unsightly and hazardous floor installations

Engineering Contradiction:
Improvealignment reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent moves the alignment constraint from the horizontal plane (floor tracks) to the vertical plane by using overhead ramps that engage with roller elements on the partition. This dimensional shift eliminates the need for floor tracks while maintaining alignment reliability through gravitational force acting on the roller-ramp interaction.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent introduces roller elements as intermediary components that mediate between the movable partition and the overhead ramp structure. These rollers translate the partition's lateral position into vertical engagement with the ramp, providing indirect alignment control without direct floor contact.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the lower edge of the movable partition is laterally displaced, then ease of operation is improved as the partition can move freely, but manufacturing precision deteriorates because the lead post fails to align with the mating receptacle

Engineering Contradiction:
Improveease of operationVSAvoidalignment precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The overhead ramp structure is pre-configured with a specific geometry that anticipates and corrects potential lateral displacement of the partition. As the partition approaches its final position, the roller element automatically engages the ramp slope, which gradually guides it into proper alignment with the mating receptacle before engagement occurs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The roller-ramp interaction provides continuous mechanical feedback during partition movement. The ramp's inclined surface creates a restoring force that pushes the roller (and thus the partition) back toward the correct vertical alignment position, ensuring precise engagement with the strike plate.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If the movable partition is allowed to move freely without alignment constraints, then ease of operation is improved, but barrier integrity deteriorates due to improper engagement with the strike plate

Engineering Contradiction:
Improveease of operationVSAvoidbarrier integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The alignment system transitions from a static floor-based constraint to a dynamic overhead mechanism that actively engages only when needed. The roller element freely moves with the partition during most of its travel, then automatically engages the ramp slope near the endpoint to provide alignment correction, maintaining both freedom of movement and engagement reliability.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively maintains the vertical alignment of movable partitions, ensuring proper engagement with strike plates and maintaining barrier integrity without the need for floor tracks, thus enhancing operational reliability and aesthetics.

Implementation Method 1

The at least one ramp has at least one ramp surface configured to be orientated at an acute angle greater than zero relative to the horizontal plane. The at least one ramp surface is configured to abut against the at least one roller element as the movable partition is caused to extend across the space within the building

Methodology Applied
Scientific EffectRamp mechanics: Inclined Plane

Implementation Method 2

A vertical alignment structure is coupled to the movable partition proximate a leading end of the movable partition, which comprises at least one roller element located laterally beyond a lateral side of the movable partition

Methodology Applied
Scientific EffectRolling friction: Roller

Data Source

PatentUS9428908B2Movable partition systems and methods of aligning a leading end of a movable partition
Publication Date: 2016.08.30 WON DOOR CORP
  • US9428908B2 patent drawing
  • US9428908B2 patent drawing
  • US9428908B2 patent drawing

AI summary

Movable partition systems include a vertical alignment structure including at least one roller element coupled to a portion of a movable partition and a ramp configured to abut against the at least one roller element to vertically align the portion of the movable partition to engage with a strike plate. Methods of vertically aligning the movable partition include coupling at least one vertical alignment structure to the movable partition including coupling at least one structural frame member to the movable partition and coupling the at least one roller element to the at least one structural frame member and installing at least one ramp to an overhead structure configured to abut the at least one roller element and vertically align a leading end of the movable partition.