Telescopic Climbing Rail Stepless Length Adjustment

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing climbing rail systems require significant effort to install and extend, and can only be extended in predetermined lengths, limiting their adaptability to different construction situations.

Innovation Solution

A telescopic climbing rail design with multiple sections that can be extended or collapsed as needed, allowing for adjustable length adjustments in a stepless manner, and equipped with guide and holding devices for stable guidance and support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If extension pieces are detachably attached to climbing rails, then the climbing rail can be extended to accommodate different floor heights, but considerable effort is required to provide and install the extension pieces

Engineering Contradiction:
Improveadaptability to different floor heightsVSAvoidassembly effort
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The climbing rail system employs nested telescopic sections where inner rail segments are inserted into outer rail segments. This nesting arrangement allows the rail to be extended to different lengths by telescoping the sections outward, eliminating the need for separate detachable extension pieces and reducing assembly effort while maintaining adaptability to various floor heights.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The rail system incorporates movable and adjustable components that allow dynamic reconfiguration. The telescopic sections can be smoothly extended and retracted, and the rail includes adjustable support elements that can be positioned at different heights, enabling the system to adapt to different floor heights without requiring complex detachment and reattachment operations.

Inventive Principle:
Principle #15Dynamics

2Length of moving object

If climbing rails are extended by predetermined lengths of extension pieces, then the rail length can be increased, but the extension is limited to fixed increments

Engineering Contradiction:
Improverail lengthVSAvoidadjustability precision
Core Design Contradiction:
Length of moving objectVSAdaptability or versatility

Solution Approach 1:

The telescopic rail system allows continuous adjustment of the rail length by extending the inner sections to any position within the outer sections, rather than being limited to fixed discrete lengths. This dynamic adjustment capability provides precise adaptability to different floor heights while achieving the necessary rail length extension.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system enables continuous variation of the rail length parameter through the telescopic mechanism, allowing the rail to be adjusted to any length within the range of the telescopic sections. This eliminates the discrete step limitations of fixed extension pieces and provides fine-tuned adaptability to specific floor height requirements.

Inventive Principle:
Principle #35Parameter changes

3Length of stationary object

If multiple detachable extension pieces are used to extend climbing rails, then the rail can reach higher concrete sections, but the device complexity increases

Engineering Contradiction:
Improverail lengthVSAvoidnumber of components
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

Instead of using multiple separate detachable extension pieces, the system employs nested telescopic sections where inner rail segments are housed within outer segments. This integration reduces the total number of discrete components, simplifies the overall device structure, and eliminates the need for multiple connection interfaces while achieving the same length extension capability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The telescopic sections are designed as integrated, interlocking components that combine multiple functions into unified structures. The nesting mechanism merges the extension function with the support function, reducing the number of separate parts and simplifying the device complexity compared to using multiple independent extension pieces.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4248035B1Climbing rail
Publication Date: 2026.04.15 DOKA GMBH
  • EP4248035B1 patent drawingFigure 1
  • EP4248035B1 patent drawingFigure 2
  • EP4248035B1 patent drawingFigure 3

AI summary

Disclosed is a climbing rail (2) to be guided along a climbing shoe (3) on an edifice (4), comprising: a first rail piece (2a) and a second rail piece (2b), the second rail piece (2b) being connected to the first rail piece (2a) in such a way as to be telescopable between a retracted state and a deployed state.