Integrated Cargo Bed Retention Rail with Sliding Lock

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Solution Overview

Problem

Current cargo management systems for pick-up trucks lack a standardized method for attaching accessories, leading to inflexibility and difficulty in installing and removing various types of accessories, with existing solutions often requiring conventional bolting or requiring users to access the cargo bed for operation.

Innovation Solution

A fully integrated cargo management system with a castellated retention rail and sliding lock rail within the cargo bed side walls, allowing for a single point of retention and release via an actuation handle, and incorporating structural hooks for secure attachment of a wide range of accessories without obstructing access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional bolting is used to attach accessories, then structural retention strength is improved, but ease of operation deteriorates due to difficult and time-consuming installation and removal

Engineering Contradiction:
Improvestructural retention strengthVSAvoidease of installation and removal
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The system divides the attachment function into separate components: a fixed retention rail with locking apertures and a movable locking member. This segmentation allows the locking mechanism to be independently operated without affecting the structural integrity of the attachment points, enabling easy installation and removal while maintaining strong retention when locked.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking member is designed to move between locked and unlocked positions along the retention rail. This dynamic element allows the system to transition from a static strong attachment state to a mobile easy-to-operate state, resolving the contradiction between retention strength and ease of operation.

Inventive Principle:
Principle #15Dynamics

2Reliability

If each accessory requires its own locking member, then individual accessory security is improved, but device complexity worsens and ease of operation deteriorates due to needing to access the cargo bed for each accessory

Engineering Contradiction:
Improveindividual accessory securityVSAvoidnumber of locking members
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The retention rail serves multiple functions: it provides structural support, defines locking positions, and guides the locking member. This universal component replaces multiple individual locking mechanisms, reducing system complexity while maintaining security through the single locking member's interaction with predetermined locking apertures along the rail.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of manufacture

If the track is mounted outside the side wall, then ease of manufacture is improved, but aesthetic appearance worsens and integration deteriorates

Engineering Contradiction:
Improveease of track installationVSAvoidaesthetic appearance and integration
Core Design Contradiction:
Ease of manufactureVSShape

Solution Approach 1:

The retention rail is nested within the cargo bed side wall structure, with the locking apertures aligned with access holes in the side wall. This nesting approach allows the functional components to be hidden within the existing structure, maintaining aesthetic appearance and integration while preserving ease of manufacture through straightforward alignment and installation.

Inventive Principle:
Principle #7Nested doll (Nesting)

4Reliability

If locking apertures are closed for secure retention, then reliability is improved, but ease of operation worsens when modification is needed

Engineering Contradiction:
Improvesecure retentionVSAvoidease of modification
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking apertures are predetermined and pre-positioned along the retention rail during manufacturing. This preliminary action allows accessories to be quickly installed by simply aligning and locking, while modification is equally simple by moving to a different predetermined aperture position, maintaining both secure retention and ease of operation for modifications.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2276649B1Cargo management system for pick-up trucks
Publication Date: 2013.06.05 MULTIMATIC INC(CA)
  • EP2276649B1 patent drawingFigure 1
  • EP2276649B1 patent drawingFigure 2
  • EP2276649B1 patent drawingFigure 3

AI summary

A structural attachment system for a cargo management system is fully integrated into the cargo bed side walls of a pick-up truck so that the only feature that is different than a standard pick-up is an array of holes along the top of the cargo bed side walls. The cargo management system also includes a wide range of different pick-up truck cargo bed mounted accessories that incorporate structural hooks that are adapted to be retained and released by the structural attachment system. Additionally, the structural attachment system provides a single point, simple method of retention and release via an actuation handle at the rear most point of the pick-up truck cargo bed. The configuration of the structural attachment system allows significant structural retention forces to be transferred from the accessories into the pick-up truck cargo bed side walls via the structural hooks.