Mirror-Image Clamping Device for Planter Row Unit Options
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Solution Overview
Problem
Agricultural planters require a system for easy and quick configuration and re-configuration of row units with optional equipment, as existing methods involve disassembly and alignment of bolts for attachment, which is cumbersome and inefficient.
Innovation Solution
A clamping device with mirror-image interior features allows for attachment without fasteners, providing angular offset for clearance and secure holding of attachments, enabling easy addition and removal of options without requiring extra fasteners or complex alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optional equipment is bolted to the row unit using traditional methods, then the attachment is secure and reliable, but the attachment process is cumbersome and requires disassembly and alignment of bolts
Solution Approach 1:
The clamping device is divided into two separate clamping members that can be positioned and secured independently. Each clamping member can be attached to the row unit frame and the optional equipment separately, eliminating the need for complex alignment of multiple bolts through the same location.
Solution Approach 2:
Instead of using bolts that pass through all components requiring alignment, the patent uses clamping members that wrap around or clamp onto components from opposite sides. This inversion of the fastening approach eliminates the alignment requirement while maintaining secure attachment.
2Adaptability or versatility
If additional optional equipment is added to the row unit, then the planter configuration is enhanced, but the process requires removing and repositioning bolts which is time-consuming
Solution Approach 1:
The clamping members are designed to be easily adjustable and repositionable along the row unit frame. This dynamic capability allows users to quickly reconfigure the planter by moving clamping members to different locations without the time-consuming process of removing and reinstalling multiple bolts.
Solution Approach 2:
The clamping members are pre-positioned or can be easily positioned at standard locations along the row unit frame. This preliminary preparation allows for rapid attachment of optional equipment without requiring complex alignment procedures during the re-configuration process.
3Strength
If traditional bolting methods are used for optional equipment, then the connection is strong and reliable, but the device complexity increases due to alignment requirements
Solution Approach 1:
The patent extracts the alignment requirement from the fastening process by using clamping members that apply force circumferentially or from opposite directions rather than linearly through a common hole. This eliminates the alignment complexity while maintaining connection strength through the clamping action.
Solution Approach 2:
The two clamping members work together to provide both the securing function and the alignment tolerance. By combining the action of two clamping members positioned at different locations, the system achieves strong connection without requiring precise alignment between all components.
Data Source
AI summary
An agricultural implement including a tool bar and a row unit coupled to the tool bar. The row unit includes a frame member and at least one clamping device coupled to the frame member. Each clamping device has a first member having first interior features and a second member having second interior features, with the first interior features being substantially a mirror image of the second interior features.


