Multi-position Tool Coupler for Forward Grading Stability
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Solution Overview
Problem
Existing mobile tool carriers face challenges in operating forward while using tools that create spoils, as they tend to raise the machine off the road surface and direct debris towards the operator, and struggle with stability on uneven terrain.
Innovation Solution
A coupling system with a center pivot assembly and support arm that allows tools to be mounted on the side of the carrier, enabling forward movement without disturbing the road surface and providing stability on slopes, featuring a hydraulic actuator and locking mechanism for adjustable tool positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the tool is placed in front of the machine, then the machine can work forward, but the machine raises off the road surface and debris is thrown towards the operator
Solution Approach 1:
The tool support structure extends laterally beyond the longitudinal ends of the mobile tool carrier, moving the tool placement from a front-facing position to a side-mounted position. This dimensional change allows the tool to operate forward while debris is directed to the side, away from the operator seated in the cab.
2Productivity
If the tool is placed in front of the machine, then the machine can work forward, but the machine disturbs the road surface and creates spoils
Solution Approach 1:
By relocating the tool support from the front to the side of the machine, the system enables forward movement without the tool interfering with the road surface ahead. The tool operates on the side, allowing the machine to maintain contact with the road surface datum while working.
3Productivity
If the support arm is extended to allow tool placement to the side, then forward operation is enabled, but the device complexity increases
Solution Approach 1:
The support arm is divided into multiple segments (first support arm and second support arm) connected by a hinge, allowing the structure to fold and extend as needed. This segmentation enables compact storage when not in use while providing full extension capability when required, managing complexity through modular design.
Solution Approach 2:
The support arm incorporates a hinge connection that allows dynamic adjustment between folded and extended positions. The arm can be positioned horizontally to protrude beyond the machine ends for tool mounting, or folded parallel to reduce complexity and space when not needed.
4Adaptability or versatility
If the coupling system is designed for multi-position adjustment, then adaptability improves, but the device complexity increases
Solution Approach 1:
The coupling system is designed to accommodate various tool attachments at multiple positions (front, rear, and side locations). The universal attachment base and support arm structure can be configured for different tool types and operating conditions, providing versatility without requiring multiple specialized systems.
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
Enables effective operation on uneven terrain, reduces debris exposure to the operator, and enhances tool stability, allowing for efficient grading and operation on slopes without disturbing the finish grade.
Implementation Method 1
a hydraulic actuator coupled to the inner arm and the outer arm that causes the outer arm to pivot about the hinge
Implementation Method 2
A support arm, having a proximal end and a distal end, is pivotably attached at its proximal end to the pivot of the center pivot assembly, allowing the arm to pivot to at least a first horizontal position and a second horizontal position at 180 degrees from the first position
Data Source
AI summary
A coupling system for coupling a tool to be carried over the earth to a mobile tool carrier. The system includes an attachment base for attaching the coupling system to the mobile tool carrier and a center pivot assembly with a pivot that allows a tool support arm to swing to either side of the tool carrier where it extends to the side to allow the tool to be used to the side while the machine moves forward. The support arm includes a vertical hinge that divides the arm into two parts, allowing the arm to fold so the tool can be either in front of the machine or beside the machine. The tool may be connected to the support arm with a quick-coupler having hooks or with a permanent attachment.