Sliding Door Guide Rail Adjustable Stop Mechanism

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing running rails for sliding doors are difficult to adjust, especially when installed in cavity walls, as the stops that limit the door's travel are often hard to access, particularly when the door is built into a cavity wall and the stop is far from the door opening.

Innovation Solution

The running rail features two parallel channels at different heights connected along its length, allowing the actuating rod and stops to be independently movable, enabling easy adjustment of stops from the end closer to the door opening, with locking means accessible for fixing positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the running rail is installed in a cavity wall with the stop far from the door opening, then the sliding door can be properly positioned within the cavity wall, but the stop becomes difficult to access for adjustment

Engineering Contradiction:
Improvepositioning accuracy of sliding doorVSAvoidaccessibility of stop for adjustment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The actuating rod serves as an intermediary element that connects the accessible end of the running rail to the stop at the far end. By inserting the actuating rod into the channel and using its locking means, the user can adjust the stop position from the accessible end without directly reaching the distant stop, thus resolving the accessibility problem while maintaining proper positioning.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If there is only one channel for the actuating rod, then the structure is simpler, but the stop cannot be adjusted independently from the other end

Engineering Contradiction:
Improvestructure of channel systemVSAvoidindependent adjustment of stops
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The single channel is segmented into two separate channels - a first channel for the first actuating rod and a second channel for the second actuating rod. This segmentation allows each actuating rod to operate independently, enabling independent adjustment of stops at both ends of the running rail while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If the locking means are positioned at the far end of the running rail, then they are closer to the stop for direct locking, but they become difficult to access for positioning

Engineering Contradiction:
Improvepositioning of locking meansVSAvoidaccessibility of locking means
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The actuating rod acts as a mediator that extends from the accessible end to the far end where the locking means are positioned. The locking means are integrated into the actuating rod at its far end, allowing them to be accessed and operated from the accessible end through the actuating rod mechanism, thus resolving the contradiction between positioning and accessibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2853670B1Guide rail for a sliding door
Publication Date: 2015.10.21 BAUGRUPPENTECHN POLLMEIER
  • EP2853670B1 patent drawingFigure 1
  • EP2853670B1 patent drawingFigure 2~3

AI summary

Guide rail for a sliding door (10), comprising a profile rail (22) forming a track (24) for roller carriages (26) of the sliding door, and a stop (28, 30) adjustable in the longitudinal direction of the guide rail (20) for limiting the travel path of the sliding door, characterized in that the stop (28, 30) is connected to an actuating rod (32, 38) extending in the longitudinal direction of the guide rail, that the stop and the actuating rod are slidably guided in a channel (34, 42) in the profile rail (22), and that the actuating rod (32, 38) has locking means (36, 40) for fixing it to the profile rail (22) in a position offset from the stop (30, 28).