Lift Door Runner Orientation for Adjustable Positioning
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Solution Overview
Problem
The existing guide assemblies for lift doors face high production and logistics costs due to the varying construction requirements and differences in materials and intended use, which are not efficiently addressed by current solutions.
Innovation Solution
A guide assembly featuring a runner that can be oriented in multiple ways to change the relative position between the door leaf and the translation guide, with different friction surfaces and non-equidistant connections, allowing for adjustable sliding positions and reduced component complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple different runners are used to meet various construction requirements, then adaptability to different lift configurations is improved, but device complexity and production costs increase
Solution Approach 1:
The patent applies universality by designing a single runner component that can serve multiple functions and configurations. The runner is designed with specific geometric features including a friction surface with particular curvature radius (R1 between 5-15mm) and a support surface, allowing it to adapt to different lift door configurations through orientation changes rather than requiring multiple specialized components.
Solution Approach 2:
The patent applies dynamics by making the runner reconfigurable through rotation around its longitudinal axis. The connection element can be oriented at different angles (including 0° and 180° positions) to accommodate various installation requirements, transforming a static component into a dynamic, adaptable solution that reduces the need for multiple fixed-design runners.
2Reliability
If multiple different runners are used to address specific construction requirements, then reliability for specific applications is improved, but production and logistics costs increase
Solution Approach 1:
The patent reduces production and logistics costs by eliminating the need to manufacture, store, and distribute multiple specialized runner types. Instead, a single universal runner design with standardized friction surface geometry (curvature radius R1: 5-15mm) and support surface can be produced in volume, simplifying the supply chain while maintaining application-specific reliability through proper orientation selection.
3Manufacturing precision
If the runner is designed with fixed orientation, then manufacturing precision is improved, but adaptability to different door positions is reduced
Solution Approach 1:
The patent reconciles manufacturing precision with adaptability by designing the runner with rotation capability around its longitudinal axis. The connection element can be precisely manufactured in standard positions (0°, 180°, and intermediate angles), maintaining manufacturing simplicity while enabling flexible door positioning through controlled rotation during installation.
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
This solution enables a single versatile component to meet various construction requirements, reducing production and logistics costs while ensuring precise assembly tolerances and compliance with safety regulations.
Implementation Method 1
the runner delimits at least a different friction surface with respect to the translation guide, the friction surfaces being non-equidistant from the support element so that the relative position between the door leaf and the translation guide can be changed
Data Source
AI summary
Guide assemblies are provided which include a translation guide, a door leaf for a lift, movable along the guide and comprising at least one support element placed at one end of the door leaf, at least one runner housed slidably in the translation guide and defining one or more connection seats to the support element, wherein the connection seat/s and the support element can be coupled with at least two different orientations of the runner with respect to the door leaf. For each orientation, the runner delimits at least a different friction surface with respect to the translation guide, the friction surfaces being non-equidistant from the support element so that the relative position between the door leaf and the translation guide can be changed by different orientations of the runner. The invention further relates to runners usable in a guide assembly.