Foot-Actuated Ear Tagging Station with Spring-Biased Pliers
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Solution Overview
Problem
The existing methods for applying ear tags to piglets are slow, labor-intensive, and strain the operator's back due to manual operation, often requiring a second person to assist with loading tag pieces.
Innovation Solution
A foot-actuated ear tagging station with a cart and dual pairs of spring-biased pliers that allow an operator to hold a piglet with both hands while using foot pedals to secure the ear tags, eliminating the need for manual strength and reducing back strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual hand-operated tagging tool is used, then the operator can control the tagging process, but the process is slow and requires bending over which strains the back
Solution Approach 1:
The patent replaces the manual hand-operated mechanical system with a foot-operated mechanical system. The foot pedal actuates the pliers through a linkage mechanism, allowing the operator to remain in an upright position while maintaining control over the tagging process. This substitution eliminates back strain from bending over while preserving operational control.
Solution Approach 2:
The patent transitions the operation from hand-based control to foot-based control, effectively moving the control interface to a different dimension of the operator's body. This allows the operator to maintain an upright posture while performing the tagging action, resolving the contradiction between ease of operation and productivity.
2Ease of operation
If hand-operated pliers are used, then the operator can apply the tag, but a second person is needed to load tag pieces making it labor-intensive
Solution Approach 1:
The patent incorporates a spring-loaded mechanism that automatically opens the pliers after each tagging action. This self-service feature allows the pliers to reset without manual intervention, enabling a single operator to continuously load and apply tags without requiring assistance from a second person to open the jaws.
Solution Approach 2:
The patent introduces dynamic elements including spring-loaded pliers that automatically return to the open position and a foot pedal mechanism that provides mechanical advantage. These dynamic features enable a single operator to efficiently perform both loading and tagging functions, reducing the need for additional personnel while managing device complexity.
3Ease of operation
If foot pedal actuation is added, then the operator can hold the piglet with both hands, but the device complexity increases
Solution Approach 1:
The patent introduces a foot pedal as an intermediary device that translates foot pressure into mechanical motion to actuate the pliers. This intermediary mechanism allows the operator to use both hands for secure piglet handling while maintaining control over the tagging process through foot operation, accepting increased device complexity as a trade-off for improved ease of operation.
4Productivity
If spring-biased pliers are used, then the pliers automatically open after use, but the force required to close them increases
Solution Approach 1:
The patent replaces hand-based actuation with foot-based actuation through a pedal linkage system. The foot pedal provides greater mechanical advantage and leverage, enabling the operator to overcome the spring bias force that automatically opens the pliers. This substitution allows the pliers to maintain high productivity through automatic opening while reducing the effective force requirement from the operator's hands.
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
The solution significantly speeds up the ear tagging process, reduces operator fatigue, and allows for faster tagging of multiple piglets with minimal risk of ear tears, as the pliers automatically open after each use, enabling efficient and safe application of ear tags.
Implementation Method 1
spring biased to the opened position
Implementation Method 2
The foot pedal is biased to a neutral, raised position, with the arm lowered and the pliers open
Implementation Method 3
a foot pedal for actuating the pliers so as to secure the ear tag components
Implementation Method 4
The cart or table also includes a foot pedal which can be depressed to lift an arm so as to actuate the pliers
Data Source
AI summary
An ear tagging station includes a cart or table having at least one tagging pliers mounted thereon. The pliers have jaws which are normally open to receive male and female tag parts. An actuating arm engages one of the plier handles. A foot pedal on the cart is depressed to lift the arm and thereby close the plier jaws so as to secure the ear tag to a piglet's ear.