Material Handling Vehicle Bumper Assembly with Removable Sensor Access

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Solution Overview

Problem

Conventional material handling vehicles require the entire bumper to be removed for servicing or replacing object detection sensors, which is inefficient and inconvenient, as the bumper is often a unitary component or a permanent fixture.

Innovation Solution

A multi-piece bumper assembly with a main body, window plates, and lower sections that allow for selective removal and installation of object detection sensors without taking off the entire bumper, enabling unobstructed access for maintenance, calibration, and replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the bumper is designed as a unitary component or permanent fixture, then the structural strength and integrity are improved, but the ease of servicing and replacing object detection sensors deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidease of servicing sensors
Core Design Contradiction:
StrengthVSEase of repair

Solution Approach 1:

The bumper is divided into multiple separable components: a main body portion and one or more removable section(s). This segmentation allows the removable section to be detached for sensor access while the main body remains installed, resolving the contradiction between structural integrity and ease of servicing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bumper design transitions from a static, permanent fixture to a dynamic structure with selectively removable portions. The removable section can be easily attached and detached, providing adaptability for maintenance operations while maintaining overall structural strength when assembled.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the entire bumper must be removed for sensor maintenance, then the structural integrity is maintained, but the time required for maintenance and replacement increases

Engineering Contradiction:
Improvestructural integrityVSAvoidmaintenance time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

By segmenting the bumper into a main body and removable section, the design enables selective removal of only the portion containing the sensor, significantly reducing maintenance time while the main body remains securely installed to preserve structural integrity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The removable section containing the sensor is extracted as a separate component that can be independently removed for maintenance operations. This extraction principle allows sensor access without removing the entire bumper structure, reducing maintenance time while maintaining overall structural stability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If the bumper is designed as a permanent fixture, then the reliability and protection are improved, but the flexibility for maintenance and calibration deteriorates

Engineering Contradiction:
Improveprotection reliabilityVSAvoidmaintenance flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The bumper is segmented into permanent and removable portions, where the main body provides reliable protection when installed, and the removable section provides flexibility for maintenance. This segmentation resolves the contradiction between reliability and adaptability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design introduces dynamic characteristics to the otherwise permanent bumper structure, allowing the removable section to be easily attached and detached for maintenance operations, thereby providing flexibility without compromising the reliability of the main body structure.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3964404B1Material handling vehicle
Publication Date: 2023.06.07 RAYMOND LTD
  • EP3964404B1 patent drawingFigure 1
  • EP3964404B1 patent drawingFigure 2
  • EP3964404B1 patent drawingFigure 3

AI summary

A bumper assembly for a material handling vehicle is provided. The bumper assembly includes a main body which includes at least one cutout. The bumper assembly also includes a window plate that may be removably coupled to the main body and cover the at least one cut out. The bumper assembly can also include a lower section that may be removably coupled to the main body and includes a protection plate extending below the at least one cutout.