Double Stretch Trailer With Telescopic Extensions
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Solution Overview
Problem
Commercially available stretch trailers are limited in their ability to support loads effectively, as they typically have the strongest main deck at the front or rear, and their extension mechanisms are cumbersome and not easily retractable, limiting their length and operational efficiency.
Innovation Solution
A trailer design featuring a bed portion with slideable front and rear extensions that can be independently extended and locked, allowing the main deck to be positioned in the middle for optimal load support, with a configuration that includes a deck, front extension, and rear extension, each with multiple beams and slots for adjustable length and locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the main deck is positioned at the front or rear of the trailer, then the extension mechanism can be simpler, but the load support capability is reduced because the strongest part is not in the middle span section
Solution Approach 1:
The trailer is divided into three main segments: a main deck and two separate telescoping extensions (front and rear). Each extension can be independently adjusted, allowing the main deck to remain centrally positioned for optimal load support while extensions provide additional length when needed. The extensions include multiple beams and slots that can be configured in different positions.
Solution Approach 2:
The telescoping extensions are designed with nested structures where extension beams slide within the main deck structure. The extensions can be stored within the main deck when not in use, and deployed outward when additional length is required. This nesting mechanism allows the trailer to maintain a compact form while providing extended length capability.
2Length of moving object
If extensions are added to increase trailer length, then the trailer can accommodate longer loads, but the extension mechanism becomes cumbersome and difficult to retract
Solution Approach 1:
The extension mechanism is designed to be dynamically adjustable rather than fixed. The telescoping beams can be extended or retracted as needed, and locked into place at various positions using pins or locking mechanisms. This dynamic design allows the trailer to adapt its length based on load requirements while maintaining ease of operation through simple extension and retraction movements.
Solution Approach 2:
The extension mechanism allows the extensions to be temporarily deployed when needed for long loads, then retracted and stored back within the main deck structure when not required. This recovering capability ensures the extensions do not become permanent cumbersome additions but rather temporary aids that can be put away when their function is no longer needed.
3Length of moving object
If the trailer is designed with fixed extensions, then the length can be extended, but the extensions cannot be inserted back into the main deck and require special permits for extended trips
Solution Approach 1:
The trailer configuration is made dynamic and adaptable rather than fixed. The telescoping extensions can be adjusted to different lengths and positions, allowing the trailer to be configured appropriately for different load requirements. The same mechanism that enables extension also enables retraction, providing versatility in trailer configuration without requiring permanent modifications or special permits.
Data Source
AI summary
Disclosed is a trailer including a bed portion. The bed portion includes a deck, a front extension, and a rear extension. The deck has a first end and a second end. The front extension is slideably engaged with the first end of the deck, and the rear extension is slideably engaged with the second end of the deck. The trailer is a “double stretch” trailer that is extendable from both ends of the deck. A towing system including a cab and the trailer is also disclosed.