Telescopic Pivoting Front Loader Boom for Wider Reach Control

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Solution Overview

Problem

Existing front loaders on work vehicles lack flexibility in movement and control options, limiting the range of operation and obstructing the operator's field of vision.

Innovation Solution

The front loader incorporates telescopic outriggers and pivotable arms, allowing for two degrees of freedom through actuators, enhancing movement control and expanding the operational range.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional front loaders with fixed boom structure are used, then the structure is simple and reliable, but the operational range is limited and the operator's field of vision is obstructed

Engineering Contradiction:

Improveoperational rangeVSAvoidboom structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The boom is transformed from a fixed structure to a dynamic structure with telescopic outriggers that can extend and retract. This allows the boom to adapt its configuration during operation, expanding the operational range while maintaining a relatively simple base structure when the outriggers are retracted.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The boom structure is divided into segments with movable outriggers that can be independently controlled. This segmentation allows different parts of the boom to perform different functions, increasing versatility without requiring complete structural redesign.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If additional actuators and degrees of freedom are added to the front loader, then movement control is improved, but the device complexity increases

Engineering Contradiction:

Improvemovement controlVSAvoidactuator system complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The additional actuators are designed to serve multiple functions. The first actuator controls both the telescopic movement of the outriggers and the pivoting of the tool holder, while the second actuator controls both the outrigger positioning and the boom articulation. This multi-functionality reduces the need for separate dedicated actuators for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If telescopic outriggers are implemented, then the operational range is expanded, but the device complexity and potential failure points increase

Engineering Contradiction:

Improverange of motionVSAvoidsystem reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The outriggers are designed as telescopic structures that can dynamically adjust their length. When retracted, they minimize the risk of damage and interference. When extended, they provide the necessary reach for expanded operational range, allowing the system to maintain reliability by keeping the telescopic mechanism protected when not in use.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP4491806B1Front loader, work vehicle, and work vehicle system

Publication Date: 2025.11.19 WILHELM STOLL MASCHFAB

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AI summary

The invention relates to a front loader (1) for a work vehicle. The front loader has a boom (3) with arms (10, 11). One arm (10) can be extended into different telescopic positions by means of an actuator (26). According to the invention, in addition to the telescopic degree of freedom (23), a pivot bearing (12) is provided between the two arms (10, 11). By means of an actuator (14), the two arms (10, 11) can be pivoted into different relative pivot positions, thereby changing the length of the boom (3). It is possible that the actuator (26) is integrated into the arm (10).