Ergonomics. Applications for Ergonomics Home & Leisure ServiceOffice Manufacturing Manufac- turing.
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Transcript of Ergonomics. Applications for Ergonomics Home & Leisure ServiceOffice Manufacturing Manufac- turing.
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Ergonomics
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Applications for Ergonomics
Home & Leisure
Service Office
Manufacturing
Manufac-turing
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Safety, Quality, & Efficiency
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Principles of Ergonomics
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Work in Neutral Postures
Principle 1
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Maintain the “S-Curve” of the Spine
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The Neck
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Keep Elbows in and Shoulders Relaxed
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Keep Wrists in Neutral
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Summary — Neutral Postures
Neck straight
Shoulders relaxed
Elbows at sides
Wrists in neutral
Back with S-curve
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Point:
• To work smarter, work in neutral postures
• Evaluate and modify:– work method– tools– workstation design
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Reduce Excessive Force
Principle 2
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Point:
• Think of what you do.
• Think of ways to reduce excessive force.
• Thousands of ways, only some examples here.
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Keep Everything in Easy Reach
Principle 3
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Reach Envelope
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Work at Proper Heights
Principle 4
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Height elbow drawing
Most work at elbow height
(sitting or standing)
Most work at elbow height
(sitting or standing)
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Height elbow hi/lo drawing
Exceptions:Heavy = lowerPrecision = higher
Exceptions:Heavy = lowerPrecision = higher
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Reduce Excessive Motions
Principle 5
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AfterBefore
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Minimize Fatigue and Static Load
Principle 6
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Minimize Pressure Points
Principle 7
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Provide Clearance
Principle 8
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Move, Exercise, Stretch
Principle 9
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Maintain a Comfortable Environment
Principle 10
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Lighting and Glare
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Vibration
Dampening Material
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Summary
• Posture
• Force
• Reach
• Heights
• Motions
• Static load
• Pressure points
• Clearance
• Stretch & exercise
• Environment
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Putting on Your Ergonomics Glasses
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Making Improvements
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Fix and Adjust What You Can Yourself
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Think Before You Work
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Make Ergonomics Part of Daily Worklife
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Cumulative Trauma Disorders (CTDs)
“Wear and tear” that accumulates thru time
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Symptoms
• Soreness, pain, discomfort
• Numbness or burning
• “Pins and needles”
• Limited range of motion
• Weakness and clumsiness
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Basic Message to Everyone:
If you think you may have a
problem
Get it checked out
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Risk Factors for CTDs
• Awkward Postures
• Force
• Repetitive Motions
• Static Load
• Pressure Points
• Vibration
• Temperature Extremes
(Tasks)
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Risk Factors for CTDs
• Physical Condition
• Diseases and Conditions
(Personal)
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Prevention
• Apply what you learn here
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What You Can Do
• Request help for any problems
• Be willing to try new methods
• Know what’s adjustable
• Get it checked out
• Exercise and keep in shape
• Think about off-the-job activities
• Learn more about ergonomics
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Activities at This Site
• TeamErgo
• Surveys
• Plans
• etc