Modular Telescoping Ladder Joining for Multi-Configuration Assembly
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Solution Overview
Problem
Existing ladder systems lack the ability to be easily joined in multiple configurations, such as double-length or scaffold configurations, limiting their utility in various applications.
Innovation Solution
A telescoping ladder system with removably coupled joining feet and lock pins allows for the connection of two or more telescoping ladders, which can be assembled into configurations like double-length, A-frame, or scaffold configurations, using materials like carbon fiber, aluminum, or polymer carbon fiber composite.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ladder systems are designed to be joined in multiple configurations, then versatility and adaptability improve, but device complexity increases
Solution Approach 1:
The joining foot is designed as a universal interface that can connect ladders in multiple configurations (double-length, A-frame, scaffold) using the same basic components. The joining foot includes multiple openings and can accommodate different connection geometries, allowing a single component design to serve multiple functional purposes across different ladder configurations.
Solution Approach 2:
The ladder system is divided into modular segments (individual ladders) that can be independently assembled and disconnected. Each ladder segment has standardized joining feet at its ends, allowing flexible combination and reconfiguration. This segmentation enables versatility while keeping individual components relatively simple.
2Ease of operation
If joining feet are removably coupled to ladder legs, then ease of operation and assembly improve, but reliability of the connection may worsen
Solution Approach 1:
The joining feet are pre-attached to the ladder legs through removable coupling mechanisms (screws, bolts, or quick-connect interfaces). This preliminary attachment prepares the connection points in advance, allowing rapid assembly when needed while maintaining secure connection during use. The pre-positioned joining feet eliminate the need for complex field assembly procedures.
Solution Approach 2:
The joining foot acts as an intermediary component between the ladder leg and the connection pin. This intermediate element provides a standardized interface that simplifies the connection process while ensuring reliable load transfer. The joining foot distributes forces across multiple attachment points, enhancing connection reliability without complicating the assembly process.
3Strength
If lock pins are used to secure joining feet, then connection strength improves, but device complexity increases
Solution Approach 1:
The lock pin mechanism is designed to be self-securing through simple insertion and engagement actions. The pin automatically locks into place through geometric interlocking or spring-loaded detents, eliminating the need for additional fastening steps or complex locking procedures. This self-service approach maintains high connection strength while minimizing operational complexity.
Solution Approach 2:
The locking function is extracted as a separate, simple component (the lock pin) rather than being integrated into the joining foot structure. This separation allows the pin to be a simple, low-complexity element that provides strong locking through its basic geometry, while the joining foot maintains its simplicity for attachment and detachment operations.
Data Source
AI summary
In illustrative embodiments, a modular telescoping ladder system may include structural parts that can be assembled into a variety of structures. The components of the telescoping ladder system may include at least two telescoping ladders that can be connected in several ways by incorporating as joining features into the ladder assemblies. To accomplish a coupling of two ladders, joining features can be added to each ladder that enable their connection. These features may be holes through which pins may be inserted to connect two or more ladders. These joining features may be added to an accessory component that allows the joining capability to be added to or removed from a given ladder, such that the ladder can include or not include these additional features. The telescoping ladder system may be assembled into a wide variety of assemblies based upon modules selected, including, double length ladders, A-frame ladders, or scaffolds.