Recessed Cargo Lighting Structure for Damage-Resistant Truck Bodies

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Solution Overview

Problem

Commercial vehicle box bodies require effective and durable lighting solutions for loading spaces that are easy to assemble and protect against damage from loads and high-pressure cleaning.

Innovation Solution

An elongated lighting unit is partially or fully accommodated in a receptacle of a receiving component, such as a roof or side wall panel, with a recess or bead design that keeps the unit from protruding into the loading space, allowing for simple assembly and protection from external influences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If lighting units are attached to the underside of the ceiling adjacent to the cargo space, then the loading space can be illuminated, but the lighting units are easily damaged by loads or during high-pressure cleaning

Engineering Contradiction:
Improveillumination of loading spaceVSAvoiddamage resistance of lighting unit
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The lighting unit is nested within a receptacle formed in the receiving component (roof panel or side wall panel). The receptacle has a depth that accommodates the lighting unit, with its front end positioned at or behind the outer surface of the receiving component, preventing protrusion into the loading space and protecting against damage during loading and cleaning operations.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If separate point-shaped lamps are integrated into the roof panel at various points, then the lighting units are not easily damaged, but they require laborious installation and wiring

Engineering Contradiction:
Improvedamage resistance of lighting unitVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The lighting unit is designed as an elongated modular component that can be installed as a single unit rather than multiple separate point lamps. This segmentation approach allows for simplified wiring and assembly compared to integrating individual point-shaped lamps at various locations, while still providing distributed illumination along the elongated structure.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If the lighting unit is accommodated in a receptacle of the receiving component, then assembly is simplified and damage is reduced, but the lighting unit must not protrude into the loading space

Engineering Contradiction:
Improveassembly simplicityVSAvoidprotrusion depth of lighting unit
Core Design Contradiction:
Ease of manufactureVSLength of stationary object

Solution Approach 1:

The receptacle is designed with specific local dimensions and positioning to accommodate the lighting unit. The depth of the receptacle is configured so that when the lighting unit is installed, its front end aligns with or recedes from the outer surface of the receiving component, ensuring no protrusion into the loading space while maintaining proper illumination coverage.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP2993084B1Structure of commercial vehicle with a lighting unit for illuminating a storage area
Publication Date: 2023.11.01 SCHMITZ CARGOBULL AG
  • EP2993084B1 patent drawingFigure 1
  • EP2993084B1 patent drawingFigure 2~3
  • EP2993084B1 patent drawingFigure 4~5

AI summary

Described and illustrated is a body (1-1V), in particular a box body, of a commercial vehicle (N), preferably a truck, trailer or semi-trailer, with a loading space (7-7V) arranged therein and at least one lighting unit (8-8V) for lighting of the hold(7-7V). In order to avoid damage to the lighting units and to keep assembly work to a minimum, it is provided that the lighting unit (8-8V) is elongate, in particular in the form of a strip, and is at least partially in at least one receptacle (11-11V) of one of the loading spaces (7 -7V) delimiting receiving component (9-9V) that the part of the lighting unit (8-8V) received in the receptacle (11-11V) does not face the receiving component (9-9V), in particular those on opposite sides of the lighting unit ( 8-8V) provided areas of the receiving component (9-9V), in the cargo area (7-7V) protrudes.