Adjustable Door Carriage for Wall Irregularities

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Solution Overview

Problem

Existing sliding systems for doors face challenges during installation due to the need for precise alignment of carriages on non-planar walls and the inability to adjust for inclined or incorrectly positioned carriages, leading to improper sliding and potential misalignment of wheels with the section.

Innovation Solution

An adjustable carriage system that allows for the adjustment of the second section relative to the first section in both vertical and horizontal planes, using a central pin for oscillation and adjusting screws for precise alignment, ensuring proper contact and alignment of wheels with the section, and includes locking and anti-screwing mechanisms for stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the carriage is fixed to the wall using traditional fixing methods, then the installation process is simple, but the wheels may not be properly aligned with the section due to operator errors or wall irregularities

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

Solution Approach 1:

The carriage incorporates adjustable elements that allow dynamic modification of its position and orientation relative to the wall. The carriage can be adjusted in terms of its longitudinal axis orientation and vertical position to compensate for installation errors or wall irregularities, ensuring proper alignment of wheels with the section while maintaining ease of installation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention enables change in critical parameters of the carriage installation, specifically the orientation angle of the longitudinal axis and the vertical height position. These parameters can be adjusted within certain ranges to optimize the alignment between carriage wheels and the section, resolving the contradiction between simple installation and precise alignment.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the carriage is installed on a non-planar or inclined wall, then the system can adapt to various wall conditions, but the wheels will not be in proper contact with the section causing incorrect sliding

Engineering Contradiction:
Improveadaptability to wall conditionsVSAvoidsliding reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The carriage includes adjustable mechanisms that allow dynamic adaptation to non-planar and inclined wall surfaces. The longitudinal axis orientation and vertical position can be modified to compensate for wall irregularities, ensuring that the wheels maintain proper contact with the section and achieve reliable sliding performance across various wall conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The carriage design provides universal adaptability to different wall conditions including planar, non-planar, inclined, and recessed surfaces. The adjustable orientation and position features enable the same carriage to reliably perform on diverse wall geometries, ensuring consistent sliding reliability without requiring different carriage types for different wall conditions.

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

3Ease of repair

If adjusting means are provided to correct carriage position, then installation errors can be remedied, but the system cannot adjust the orientation of the first section relative to the second section

Engineering Contradiction:
Improveease of error correctionVSAvoidorientation adjustment capability
Core Design Contradiction:
Ease of repairVSAdaptability or versatility

Solution Approach 1:

The carriage incorporates dual adjustment capabilities: vertical position adjustment to correct height errors and longitudinal axis orientation adjustment to correct angular misalignment. These dynamic adjustment features enable the system to remedy both positional and orientational installation errors, providing comprehensive error correction and enhanced adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention adds orientation adjustment capability to the existing vertical position adjustment. By enabling adjustment in both vertical position and longitudinal axis orientation dimensions, the system gains comprehensive error correction capability, allowing it to remedy not only height errors but also angular misalignment errors during installation.

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

4Manufacturing precision

If spacers are used to align the carriage with the section, then the wheels can be properly positioned, but the carriage is not firmly fixed to the wall and the alignment is difficult to implement accurately

Engineering Contradiction:
Improvealignment precisionVSAvoidfixing complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The carriage integrates adjustable orientation and position features directly into the fixing mechanism itself, eliminating the need for separate spacer components. This integrated approach achieves precise alignment through controlled adjustment of the carriage's longitudinal axis and vertical position, while maintaining firm fixation to the wall without requiring additional alignment components.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3848544B1Improved sliding system for doors and door panels
Publication Date: 2024.03.06 SLIDING
  • EP3848544B1 patent drawingFigure 1
  • EP3848544B1 patent drawingFigure 2
  • EP3848544B1 patent drawingFigure 3

AI summary

Sliding system for door panels comprising a carriage (C) suitable for being fixed to a wall (E) and a section (P) integral with a door panel (A) and slidingly mounted on the carriage; the carriage (C) comprises a first section (1) suitable for being fixed to the wall (E) and a second section (2) coupled with the first section (1); the carriage comprises a central pin (3) and the second section (2) is revolvingly mounted around the central pin (3); adjusting means (M) act on the second section (2) in such a way to translate the second section (2) relative to the first section (1) along an orthogonal direction relative to a longitudinal axis (X1) of the first section (1) and/or in such a way to adjust an inclination of the second section (2) relative to the longitudinal axis of the first section on a vertical plane; locking means (B) cooperate with the adjusting means (M) to mutually lock the two sections.