Grapple-Heel Rack with Movable Heel for Load Control
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Solution Overview
Problem
Existing manipulation machines lack a versatile tool for efficiently handling and manipulating loads such as trees and logs, particularly in scenarios requiring precise control and multiple handling operations, as current grapple and heel combinations are limited in their adaptability and functionality.
Innovation Solution
A multifunctional grapple-heel rack system with a frame, side rails, and angle-enabler catches that allows for various holding positions and mechanisms, including a mechanical grapple return system, enabling the grapple to rotate and return to a neutral position, and integration with a manipulation machine for enhanced load handling capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a grapple and heel are used separately or in simple combination, then the manipulation machine can handle loads, but the control and versatility in handling loads are limited
Solution Approach 1:
The patent combines the grapple and heel into an integrated grapple-heel rack assembly where the heel is mounted on the grapple frame. This merging allows the manipulation machine to perform multiple functions (grasping and positioning) with a single tool, improving versatility without requiring separate attachments. The heel can be positioned at different locations on the grapple frame to handle various load types and sizes.
Solution Approach 2:
The grapple-heel rack assembly is designed as a universal tool that can handle different types of loads (trees, logs, brush) through adjustable heel positions and multiple grapple fingers. The system provides multi-functionality by enabling both grasping and precise positioning operations with a single attachment, reducing the need for specialized tools for different tasks.
2Ease of operation
If a fixed heel is attached to the grapple, then the structure is simple, but the control over load positioning is reduced
Solution Approach 1:
The heel is designed to be movable along the grapple frame rather than fixed, allowing dynamic adjustment of its position. This enables the operator to control load positioning by moving the heel to different locations on the frame, providing ease of operation for various loading scenarios while maintaining a relatively simple mechanical structure.
Solution Approach 2:
The grapple frame is divided into multiple segments or positions where the heel can be attached. This segmentation allows the heel to be positioned at different locations along the frame, providing fine control over load positioning without requiring a complex continuous adjustment mechanism. The heel can be quickly repositioned between discrete locations.
Data Source
AI summary
A grapple-heel rack having a frame, a grapple, and first and second angle-enabler catches. A grapple attachment (which may be or may include a universal joint) may be used to support the grapple from a nose of the frame. A mechanical grapple return system may be used to return the grapple from a non-neutral position to a neutral position. At least one method for using the grapple-heel rack.