Swap Body Locking Head for Longitudinal Guide Immobilization

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Solution Overview

Problem

Existing devices for immobilizing and securing swap bodies are ineffective for models with longitudinal or few transverse crossmembers, as they rely on detecting transverse crosspieces, which are absent in newer designs, leading to instability and accident risks during loading and unloading.

Innovation Solution

A device with a head featuring lateral arms equipped with anti-slip pads and a wide detection plate to secure both longitudinal and transverse crossmembers, along with retractable locking tabs, ensures universal compatibility and stability, using a steel structure with a hydraulic cylinder to actuate the arms for secure positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the detection means has a small width to detect transverse crosspieces, then the device can effectively lock bodies with transverse crossmembers, but it cannot detect or lock bodies with longitudinal or few transverse crossmembers

Engineering Contradiction:
Improvelocking reliability for bodies with transverse crossmembersVSAvoidcompatibility with bodies having longitudinal or few transverse crossmembers
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The detection means is designed with a width of at least 90 mm to serve multiple functions: it can detect both transverse crosspieces (when present) and longitudinal crossmembers (when present), making the device compatible with various body configurations including those with only longitudinal crossmembers

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

Solution Approach 2:

The locking function is divided into two independent systems: detection means (wide plate at least 90 mm wide) for locating the body center, and locking means (lateral arms with locking pads) for securing the body. This segmentation allows each component to be optimized for its specific function while working together to handle diverse body types

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the device uses traditional transverse crossbar detection, then it can secure bodies with standard crossmember configurations, but it fails to secure bodies without or with few transverse crossmembers

Engineering Contradiction:
Improvesimplicity of locking mechanism for standard bodiesVSAvoidcompatibility with modern bodies lacking transverse crossmembers
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The lateral arms are designed to perform dual functions: they can lock onto transverse crosspieces when present, and alternatively lock onto longitudinal crossmembers or guides when transverse crosspieces are absent, making the device universally applicable to various body configurations

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

Solution Approach 2:

The lateral arms are movable rather than fixed, allowing them to dynamically adjust their position and locking point based on the body configuration. This dynamic capability enables the arms to engage with different structural elements (transverse crosspieces, longitudinal crossmembers, or guides) depending on what is available

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the detection plate is made wide (at least 90 mm) to detect longitudinal crossmembers, then the device can locate bodies without transverse crosspieces, but the detection system becomes more complex

Engineering Contradiction:
Improveability to detect bodies with longitudinal crossmembersVSAvoiddetection system structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The detection function and centering function are merged into a single wide detection plate (at least 90 mm wide). This unified component simultaneously detects the presence of longitudinal crossmembers and centers the device on the body, eliminating the need for separate detection and centering mechanisms

Inventive Principle:
Principle #5Merging (Combining)

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

The solution provides enhanced stability and safety by securely immobilizing swap bodies with various crossmember configurations, reducing the risk of accidents and ensuring secure loading and unloading processes.

Implementation Method 1

a hydraulic cylinder to actuate the arms for secure positioning

Methodology Applied
Scientific EffectHydraulic pressure: Hydraulic Press

Implementation Method 2

each arm is equipped with an anti-slip support pad on the corresponding guide

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3699120B1Device for immobilising and securing a mobile unit with load-receiving stands and method for implementing same
Publication Date: 2024.02.28 EXPRESSO FRANCE
  • EP3699120B1 patent drawingFigure 1
  • EP3699120B1 patent drawingFigure 2
  • EP3699120B1 patent drawingFigure 3

AI summary

A locking device head (1) secures a mobile crate (15) unloaded from the truck. This head (1) is positioned on the locking and securing device, which slides under the crate (15) and immobilizes it by blocking its underside. The head comprises a metal structure supporting at least one means for detecting the underside of the crate (15) and locking means (3a, 3b, 10a, 10b) for the crate (15). The locking means consist of at least two lateral arms (3a, 3b) extending symmetrically from the metal structure (2) until they rest on the guides (18) of the crate (15). Each arm (3a, 3b) is equipped with an anti-slip pad (6a, 6b) to support the corresponding guide (18). The head (1) further includes retractable cleats (10a, 10b) oriented upwards to retract or block the transverse cross members (17) of the body (15).