Segmented Carriage Extension Guide for Adaptable Rail Lengths
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Solution Overview
Problem
Existing extension guides require different carriages for varying rail lengths and load requirements, leading to increased production costs and limited adaptability.
Innovation Solution
The extension guide is designed with segments of carriages that can be connected detachably, allowing for adjustable length and load-bearing capacity through connecting elements and guide means, enabling easy adaptation to different applications without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different carriages are used for varying rail lengths and load requirements, then the extension guide can meet specific application needs, but production costs increase and adaptability decreases
Solution Approach 1:
The carriage is divided into multiple detachable segments that can be connected in different configurations. Each segment has standardized connecting elements that allow them to be assembled into various lengths and load capacities, enabling a single segment design to serve multiple application requirements rather than needing different carriage designs for each application
Solution Approach 2:
The carriage segments are designed with universal connecting elements and standardized interfaces that allow the same segment design to be used across different applications. By varying the number and arrangement of segments, the same basic segment can adapt to different rail lengths and load requirements, making the component multi-functional
2Length of moving object
If different carriages are used for varying rail lengths, then specific applications can be addressed, but production costs and device complexity increase
Solution Approach 1:
The carriage is segmented into modular units with standardized connecting elements. These segments can be assembled in different quantities and configurations to achieve various total lengths, eliminating the need to design and manufacture completely different carriage types for each rail length requirement
Solution Approach 2:
The carriage configuration is made dynamic and adjustable through detachable connections. Users can assemble and disassemble segments to adapt the carriage length to match different rail lengths, transforming a static, application-specific design into a flexible, reconfigurable system
3Strength
If integral carriage design is used, then structural strength is maintained, but adaptability to different applications is limited
Solution Approach 1:
The carriage is divided into segments that are connected through standardized joining mechanisms designed to maintain structural integrity. The connecting elements incorporate features such as engagement protrusions, recesses, and locking mechanisms that ensure the segmented construction achieves strength comparable to integral designs while providing adaptability
Solution Approach 2:
Multiple carriage segments are combined through rigid connecting elements that create a unified structural assembly. The connection design ensures that the combined structure maintains the structural strength required for load-bearing applications while allowing the segments to be separated and reconfigured for different uses
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 design reduces production costs and enhances adaptability by allowing the same carriage segments to be used in various applications, ensuring smooth and reliable movement of furniture parts with varying weights and travel distances.
Implementation Method 1
suitable means, for example rollers, may be provided between the center rail and the carcass rail
Implementation Method 2
The first pinion meshes with a rack disposed at the first carriage and the second pinion meshes with a rack disposed at the drawer rail
Data Source
AI summary
The invention relates to an extension guide (1) for mounting a movable furniture part linearly movably along an extension direction (2), comprising a carcass rail (10) which can be fixed to a furniture carcass, a drawer rail (50) which can be fixed to the movable furniture part, and a linearly movable center rail (30) arranged between the carcass rail (10) and the drawer rail (50), at least one load-transmitting inner carriage (20) arranged between the carcass rail (10) and the center rail (30) and at least one load-transmitting outer carriage (40) arranged between the center rail (30) and the drawer rail (50). The extension guide 1 can be easily and cost-effectively adapted to different rail lengths in that that the inner carriage (20) and/or the outer carriage 40 is/are formed of a plurality of segments (21, 24, 40.1, 41, 42) which are connected to one another, preferably detachably connected.