Work Vehicle Bumper Pin Interface for Fast Stable Attachment
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Solution Overview
Problem
Conventional methods for attaching ballast and implements to work vehicles are time-consuming and require multiple attempts due to the heavy and unwieldy nature of these attachments.
Innovation Solution
An attachment system featuring a bumper interface with a pin retainer and anti-rotation feature that securely couples and stabilizes the attachment interface, allowing for efficient transfer of loads and preventing rotation, thereby simplifying the attachment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional attachment methods are used for heavy ballast and implements, then the attachments can be secured to the work vehicle, but the attachment process becomes time-consuming and requires multiple attempts
Solution Approach 1:
The attachment system is divided into separate functional components: a bumper interface with pin retainer, an attachment interface with corresponding features, and distinct anti-rotation mechanisms. This segmentation allows each component to be optimized independently for quick connection while maintaining overall system simplicity
Solution Approach 2:
The pin retainer and anti-rotation features are pre-configured in specific positions and orientations on the bumper and attachment interfaces. This preliminary positioning enables direct, single-attempt coupling without requiring alignment adjustments or multiple attachment attempts, thereby increasing attachment speed
2Weight of moving object
If heavy ballast and implements are attached to the work vehicle, then the vehicle gains necessary weight and functionality, but the heavy and unwieldy nature of these attachments makes conventional attachment processes time-consuming
Solution Approach 1:
The pin retainer and attachment interface are designed with complementary geometries that naturally guide the attachment into the correct position, eliminating the need for lifting and repositioning heavy attachments multiple times. This reduces the time loss associated with handling heavy objects
3Productivity
If the attachment interface is designed for quick connection, then attachment speed improves, but rotation control may be compromised
Solution Approach 1:
The pin retention function and anti-rotation function are merged into a single integrated attachment operation. The pin retainer not only secures the pin but also incorporates anti-rotation features that engage simultaneously, achieving both quick connection and rotation control in one action
Solution Approach 2:
The anti-rotation features utilize asymmetric geometries (such as keyed interfaces or non-circular cross-sections) that prevent rotation in one direction while maintaining simple, quick connection capabilities. This asymmetric design ensures attachment stability without compromising attachment speed
Data Source
AI summary
An attachment system for a bumper of a work vehicle includes a bumper interface. The bumper interface is configured to support a substantially downward load exerted by an attachment interface. The bumper interface includes a bumper pin retainer configured to retain a pin. The pin is configured to couple to the attachment interface. The pin is also configured to transfer the substantially downward load exerted by the attachment interface to the bumper interface. The bumper interface also includes a bumper anti-rotation feature configured to block rotation in a first direction of the attachment interface about the pin.