Rotating Jaw Attachment for Earth Moving Machines

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Solution Overview

Problem

Traditional earth moving machine attachments, such as mechanical and hydraulic jaws, require complete dismantling for different operations, leading to time loss, increased labor, and accident risks due to the lack of an adjustment mechanism, which existing solutions have not adequately addressed.

Innovation Solution

A jaw attachment with a rotating and moving lower body that can perform both jaw and ripper functions without detachment from the fixed upper body, utilizing a 180-degree rotation mechanism and connection members like DIN912 bolts to switch between functions efficiently, allowing for the replacement of only the lower body when worn.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional mechanical or hydraulic jaws are used for excavation operations, then grabbing and displacement of materials can be performed, but the attachments cannot perform other work types and require complete dismantling for different operations

Engineering Contradiction:
Improvework type versatilityVSAvoidtime loss during attachment replacement
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The jaw attachment is designed with a rotatable lower body that can be positioned in multiple orientations to perform different functions. The lower body can rotate to enable both jaw function (for grabbing materials) and ripper function (for excavating materials), allowing a single attachment to perform multiple work types without complete dismantling.

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

Solution Approach 2:

The attachment is divided into separable components: a fixed upper body and a moving lower body connected by connection members. This segmentation allows the lower body to be independently rotated and repositioned to change functions, or replaced separately if worn, without removing the entire attachment from the machine.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If traditional attachments without adjustment mechanisms are used, then结构简单 (structure is simple), but complete dismantling is required for each operation change causing labor and time loss

Engineering Contradiction:
Improveease of function switchingVSAvoidattachment structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The lower body is designed as a dynamic component that can rotate and be repositioned relative to the fixed upper body. Connection members allow the lower body to be easily detached and reattached in different positions, enabling quick function switching without complex adjustment mechanisms or complete dismantling.

Inventive Principle:
Principle #15Dynamics

3Ease of repair

If complete detachment of jaw attachments is performed for replacement, then worn parts can be replaced, but labor and time loss occur and accident risk increases

Engineering Contradiction:
Improveease of part replacementVSAvoidaccident risk during operation
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

The attachment is segmented into a fixed upper body and a moving lower body that can be independently handled. When the lower body becomes worn, only that component needs to be replaced by disconnecting connection members, rather than removing the entire attachment from the machine, reducing both time and accident risk.

Inventive Principle:
Principle #1Segmentation

4Ease of manufacture

If traditional single-function attachments are used, then manufacturing is simpler, but separate attachments are needed for different operations increasing overall complexity

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidfunction integration
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The attachment integrates multiple functions into a single device. The lower body can be positioned in different orientations to provide both jaw function and ripper function, eliminating the need for multiple separate attachments while maintaining manufacturing simplicity through modular design with standardized connection members.

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

Data Source

PatentEP3924558B1A jaw attachment having various functions
Publication Date: 2023.02.08 HIDROMEK HIDROLIK VE MEKANIK MAKINA IMALAT AS
  • EP3924558B1 patent drawingFigure 1
  • EP3924558B1 patent drawingFigure 2a~2b
  • EP3924558B1 patent drawingFigure 3

AI summary

Invention relates to jaw attachment (1) with replaceable and rotatable type structure of mechanical and hydraulic jaws used in earth moving machines and provides different functions for related attachments and provides change of direction on body without any operator effort and thus provides usage for different purposes.