Modular Body Locking Lever for Commercial Vehicle Chassis

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Solution Overview

Problem

Existing commercial vehicles lack a secure and efficient mechanism for mounting and removing removable bodies, leading to safety concerns and limited adaptability for different body models, as current solutions rely on manual intervention and makeshift fixing methods without mechanical locking.

Innovation Solution

A utility vehicle design featuring a chassis with a temporary assembly device that includes locking levers and a secure access control system, allowing for easy and safe mounting and removal of removable bodies using a forklift, with locking levers biased to secure the body to the chassis at three points and a sliding mechanism for secure access control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual fixing links are used to mount the van on the chassis, then the assembly process is simple, but the safety and reliability of the connection is insufficient

Engineering Contradiction:
Improveassembly process simplicityVSAvoidconnection safety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The locking lever system automatically engages and locks the van to the chassis when the forklift inserts the forks into the fork pockets. The lever pivots under its own weight or spring force to engage the locking position, eliminating the need for manual intervention while ensuring reliable mechanical locking.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical fixing links with an automated locking lever system that uses the forklift's own forks as the actuating mechanism. The locking lever converts the linear motion of the forklift forks into rotational motion to engage the lock, providing both automation and enhanced reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the van can be easily removed using a forklift, then the operational flexibility is improved, but the security against unauthorized removal deteriorates

Engineering Contradiction:
Improveoperational flexibilityVSAvoidunauthorized removal risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The locking lever acts as an intermediary mechanism between the forklift forks and the van-chassis connection. It requires the forklift to be in the correct position and orientation to activate the locking mechanism, thereby preventing unauthorized or accidental removal while maintaining operational flexibility for authorized forklift operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the fixing mechanism is specifically adapted for a particular van model, then the connection reliability is improved, but the adaptability to different body models is reduced

Engineering Contradiction:
Improveconnection reliabilityVSAvoidbody model adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The locking lever system is designed with universal compatibility to work with different van models and body types. The fork pockets are positioned and dimensioned to accommodate standard forklift forks, allowing the same locking mechanism to securely attach various body models (tankers, refrigerated units, flatbeds, etc.) to the chassis without requiring model-specific adaptations.

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

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

Enables quick, safe, and secure attachment and detachment of removable bodies, ensuring rigid anchoring and preventing unauthorized removal, while allowing for easy adaptation to different body models and functionalities.

Implementation Method 1

the levers being elastically biased to occupy, in the absence of the forks, a position of assembly of the bodywork with the chassis

Methodology Applied
Scientific EffectElastic bias: Elasticity

Data Source

PatentEP2958771B1Commercial vehicle having a modular body
Publication Date: 2017.03.29 SH2M
  • EP2958771B1 patent drawing
  • EP2958771B1 patent drawing
  • EP2958771B1 patent drawing

AI summary

The invention relates to a vehicle comprising a chassis (2) defining a cabin and a platform for receiving a removable body {3} having a front portion, a rear portion (9), two side portions and a bottom having two bearing surfaces (7i) for the forks of a handling device, extending mutually parallel and defining in part two fork passages (18), the vehicle comprising a temporary assembly device (30) between the chassis (2) and the body (3). According to the invention: the body (2) comprises two fork passages (18) leading to the rear portion (9) of the body (3), the temporary assembly device (30) comprises: for each fork passage (18), a locking lever (31) pivotably mounted on the chassis (2) and operated in a direction so as to occupy a retracted position releasing the assembly between the body and the chassis and controlled in an opposite direction, so as to occupy a position of assembly to the body (3) with the chassis (2), a locking system (33) between the body (3) and the chassis (2), comprising a control having a secure access.